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Category Archives: Transhuman News

Gene therapy shows promise at treating severe form of epilepsy – Freethink

Posted: January 27, 2022 at 11:55 pm

Scientists at the University of Virginia (UVA) School of Medicine have developed a promising gene therapy to target the mutation behind a severe form of epilepsy.

The new Dravet syndrome treatment could help improve and extend the lives of people with the rare but debilitating disease.

The challenge: People born with Dravet syndrome start experiencing seizures when theyre still infants. Seizures continue throughout their lives and often lead to a host of health problems severe developmental delays, speech impairments, intellectual disability, and movement difficulties.

There is no cure for Dravet syndrome, and 10-20% of children born with it die before reaching adulthood.

Certain diets, medications, and therapies can help reduce the frequency and severity of seizures, but patients still require constant, lifelong care.

Between 10% and 20% of children born with Dravet syndome die before reaching adulthood.

The idea: In more than 80% of cases, people with Dravet syndrome have a mutation in a particular gene (called SCN1A) that results in reduced production of a critical protein in the brain.

This leads to a shortage of that protein in specialized brain cells, called interneurons, that protect against seizures.

No existing Dravet syndrome treatment directly addresses the underlying cause of the disease so the UVA team decided to make one that does.

The Dravet syndrome treatment: Dravet is usually caused by a single random mutation, but people generally carry two copies of every gene. The researchers aimed to use the second intact gene to treat the disease.

The treatment completely prevented seizures and premature death in infant mouse models of Dravet.

Using an approach they call Targeted Augmentation of Nuclear Gene Output (TANGO), the scientists developed a Dravet syndrome treatment that prompts the intact gene to increase protein production.

When tested in mouse models of Dravet syndrome, the treatment completely prevented seizures and premature death in infant mice.

The animals interneurons were more responsive, more active, and better able to do their jobs, according to a press release.

The big picture: Therapies that work in mice often fail in humans, but early results in human trials suggest this Dravet syndrome treatment has a shot.

More than 70% of children with Dravet in an ongoing phase 1/2A study experienced a reduction in seizure frequency following treatment, according to Stokes Therapeutics, the company developing the drug.

That study was small, with just 21 participants so far, and these are interim results, so its still too early to say whether the therapy (called STK-001) will ultimately make it to patients.

Still, if the results hold up in larger trials, the new treatment could help people with Dravet syndrome live longer, healthier lives.

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FDA Pulls on the Reins for Mustang’s Gene Therapy as Others Advance – BioSpace

Posted: at 11:55 pm

Shares of Mustang Biohave fallen more than 13% in premarket trading after the company announced the U.S. Food and Drug Administration had placed a hold on the companys Investigational New Drug application for its bubble boy gene therapy.

The Worcester, Mass.-based company said the regulatory agency placed a hold on the planned Phase II study pending Chemistry, Manufacturing and Controls (CMC) clearance for MB-207, Mustangs lentiviral gene therapy. Mustang intended to initiate a pivotal Phase II study to assess the gene therapys safety, tolerability, and efficacy as a potential treatment forX-linked severe combined immunodeficiency (XSCID), also known as bubble boy disease. The study would include patients who have been previously treated with a hematopoietic stem cell transplantation.

MB-207 has previously been granted Orphan Drug and Rare Pediatric Disease designations by the FDA, makingthe asset eligible for a rare pediatric disease voucher.

In addition to the planned MB-207 Phase II study, Mustang is conducting a Phase I/II XSCID study in newly diagnosed infants under the age of two with MB-107. Like MB-207, MB-107 has also been granted Rare Pediatric Disease, Orphan Drug and Regenerative Medicine Advanced Therapy designations.

Manuel Litchman, M.D., president and chief executive officer of Mustang Bio, said the company hopes to efficiently expedite the development of both MB-2017 and MB-107. He said they believe they are well positioned to address the FDAs CMC concerns.

While Mustangs gene therapy trial is temporarily prohibited from the beginning, the FDA did clear several other companies requests to begin clinical studies.

Mind Medicines LSD Formulation Moves into Phase IIb

New York-based Mind Medicines IND for a Phase IIb study of MM-120 for treatinggeneralized anxiety disorder (GAD) was given the go-ahead by the FDA. That trial had been on hold,but the hold was recently lifted after Mind Medicines address of participant monitoring protocols for the upcoming study. The Phase IIb trial is expected to begin later this year.

The company expects to enroll a total of 200 participants who will receive a single administration of up to 200 g of MM-120 or placebo. The study's primary endpoint is the reduction in anxiety symptoms for up to 12 weeks following a single administration of MM-120, a pharmacologically optimized form of LSD.

Imara Inc. Will Begin Cardiac Study in Second Quarter

Bostons Imara Inc. will begin assessing tovinontrine (IMR-687) in a Phase II studyto treatheart failure with preserved ejection fraction (HFpEF). The clinical trial is expected to begin in the second quarter of 2022. The trial will evaluate tovinontrine in approximately 170 patients 45 years of age or older with persistent HFpEF symptoms. The primary endpoint of the study will be change in NT-proBNP, with secondary endpoints that include safety and tolerability and the quality of life measures.

Tovinontrineis a highly selective and potent small-molecule inhibitor of phosphodiesterase-9 (PDE9).

Nanoscope Therapeutics Heads into Phase II with Stargardt Therapy

Texas-based Nanoscope received IND clearance from the FDA for a Phase II study of its Multi-Characteristic Opsin (MCO-010) ambient-light activatable optogenetic monotherapy. MC)-010 is being assessed as a gene therapy to restore vision in Stargardt patients. Stargardt, an inherited retinal disease, is a form of macular degeneration affecting children and adults.

Nanoscopes MCO-010 gene therapy reprograms healthy retinal cells to make them photosensitive. It uses proprietary AAV2 vectors. The Phase II trial is expected to begin in the first half of 2022.

Nanoscope is currently conducting a PhaseIIbstudy of MCO-010 for retinal pigmentosa (RP) patients. MCO-010 has received orphan drug designations from the FDA for RP and Stargardt.

SwanBio Takes Rare Disease Gene Therapy into the Clinic

Philadelphia-based SwanBiosgene therapy for the treatment of adrenomyeloneuropathy (AMN) has been cleared for a Phase I/II study. SwanBios lead candidate SBT101 is the first AAV-based gene therapy in development designed to compensate for the disease-causing ABCD1 mutation in AMN patients.

Adrenomyeloneuropathy is the adult-onset degenerative spinal cord disease that affects people with adrenoleukodystrophy, a rare, genetic and metabolic condition. The Phase I/II study will assess the safety and efficacy of the gene therapy. It is expected to begin in the second half of 2022.

Preclinical data shows that treatment with SBT101 demonstrated dose-dependent improvement of AMN disease markers in animal models. The gene therapy was also well-tolerated in non-human primates at six months post-treatment. The company said the SBT101 program builds on its ongoing natural history study of AMN.

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Researchers identify proteins that could predict liver transplant rejection – EurekAlert

Posted: at 11:55 pm

image:The Blood Proteoform Atlas (BPA) compiles ~56,000 proteoforms identified from 21 human cells types and plasma view more

Credit: Please credit Kelleher and Levitsky labs at Northwestern University

Northwestern University scientist have discovered families of proteins in the body that could potentially predict which patients may reject a new organ transplant, helping inform decisions about care.

The advancement marks the beginning of a new era for more precise study of proteins in specific cells.

Scientists tend to look at shifting patterns of proteins as if through goggles underwater, taking in just a fraction of available information about their unique structures. But in a new study to be published January 27 in the journal Science, scientists took a magnifying glass to these same structures and created a clarified map of protein families. They then held the map up in front of liver transplant recipients and found new indicators in immune cell proteins that changed with rejection.

The result, the Blood Proteoform Atlas (BPA), outlines more than 56,000 exact protein molecules (called proteoforms) as they appear in 21 different cell types almost 10 times more of these structures than appeared in similar previous studies.

Scratching the surface of potential

Were working to create the protein equivalent of the Human Genome Project, said Neil Kelleher, a leading expert in proteomics and co-corresponding author of the paper. The BPA is a microcosm of that, including a specific-use case.

Kelleher is the Walter and Mary Glass Professor of Molecular Biosciences and professor of chemistry in NorthwesternsWeinberg College of Arts and Sciencesand a professor of medicine inNorthwestern University Feinberg School of Medicine.He is also the director of theChemistry of Life Processes Institute(CLP) and faculty director ofNorthwestern Proteomics, a center of excellence within CLP that develops novel platforms for drug discovery and diagnostics.

Each human gene has at least 15 to 20 unique forms of processed proteins (proteoforms). And with 20,300 individual genes in the human body, there are millions of proteoforms created by genetic variation, modification or splicing. Kelleher said with a complete roadmap of each genes family of proteinsthe goal of a major science initiative known as the Human Proteoform Project discoveries about disease, aging and new therapeutics will accelerate.

The Kelleher lab uses state-of-the-art mass spectrometry and data analysis to identify proteofoms in cells and blood efficiently, keeping proteoforms intact in a form of top-down analysis rather than cutting them up into tiny pieces as with the industry standard.

Were starting to see the complexity, he said. In this paper, we demonstrate patient-, cell type- and proteoform-specific measurements, which allows us to get to better biomarkers.

A blood test for liver transplant rejection

Having team members across disciplines allows the project to conceptualize a move from lab bench to bedside. As Kelleher probes the scientific basis for phenomena in the cell, co-corresponding author and Northwestern Medicine transplant hepatologist Josh Levitsky works with him to understand how these could be applied to a specific system.

Levitsky, professor of medicine, surgery and medical education at Feinberg, originally connected with Kelleher through his leadership in the biomarkers space, in which measurable signs in the blood are used to predict health metrics in patients facing disorders and in this instance, liver transplant rejection.

It was really important for Neil that there was a biologically relevant example to contextualize how these proteoform panels can identify diseases non-invasively as markers, Levitsky said. And theres also a need in my field to have mechanistic biomarkers that are more relevant to their immune biological pathways. This could be the start of a new era in cell-specific markers.

Physicians must suppress the immune system with drug therapy and monitor liver transplant recipients for signs of rejection, often only responding after an episode has begun. Guesswork throughout this process could be eliminated with specific knowledge about whats happening at the most granular level.

With the BPA as a reference map, the team took blood samples from participants in one of Levitskys biomarker collection studies. They examined which proteoforms seemed to activate in response to the transplant and identified those that changed compared to patients without rejection.

Next, the Levitsky and Kelleher team developed a panel of 24 proteoforms from the initial study and looked at them in transplant recipient samples from across the country. They found the same proteoforms lit up as in the first trial.

Moving the field forward

The promise here is to be able to use this panel moving forward to be able to identify patients who have no signs of rejection versus those who have very early evidence of rejection, Levitsky said. If we can pick up on this several weeks before rejection actually happens, we might be able to modify immunosuppression.

Levitsky continues to examine how proteoforms change in transplant recipients over time to develop additional biomarkers that may inform how he treats patients down the line. Kelleher said as the number of cell types in the atlas grows, so too will potential ways to use it. In addition to broadening understandings of human biology, the BPA could have similar applications across immune disorders.

The study, The Blood Proteoform Atlas: A reference map of proteoforms in human hematopoietic cells, was conducted across six institutions with 26 scientists. Rafael D. Melani, a research assistant professor in the Kelleher Group, was the first author of the paper, along with Vincent R. Gerbasi, also from Northwestern, and Lissa C. Anderson from Florida State University.

The research was supported by the National Institute of General Medical Sciences of the National Institutes of Health (award numbers: P41 GM107569, R21LM013097, T32 GM105538 and R21 AI135827), the Human Biomolecular Atlas Program (award number: UH3 CA246635-02), Paul G. Allen Frontiers Program Award (award number 11715), the Knut and Alice Wallenberg Foundation grant (2016.0204) and the Swedish Research Council grant (2017-05327). Work performed at the National High Magnetic Field Laboratory is supported by the National Science Foundation Division of Materials Research and Division of Chemistry and the State of Florida.

The Blood Proteoform Atlas: A reference map of proteoforms in human hematopoietic cells

28-Jan-2022

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.

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FDA Clears MCO-010 Gene Therapy as IND for Stargardt Macular Degeneration – MD Magazine

Posted: at 11:55 pm

A Phase 2 trial can begin investigations on MCO-010 gene therapy as treatment for patients with Stargardt disease. The multi-characteristic opsin ambient-light activatable optogenetic monotherapy may restore vision in patients with this rare macular degeneration.

The developer of MCO-010, Nanoscope Therapeutics Inc, announced that it received investigational new drug (IND) clearance from the US Food and Drug Administration (FDA).

The trial is expected to start in H1-2022. MCO-010 is designated as an orphan drug by the FDA for Stargardt disease and retinitis pigmentosa (RP).

The clincal-stage biotechnology company is currently conducting a Phase 2b multicenter, randomized, sham-controlled, double-masked study of MCO-010 for patients with retinitis pigmentosa.

Retinitis pigmentosa is a group of rare, genetic disorders associated with difficulty seeing at night and the inability to see peripherally due to the breakdown and loss of cells in the retina.

Stargardt is an inherited rare disease that affects children and adults. As a result of this retinal disease, photoreceptors in the eye degenerate. MCO-010 gene therapy makes them photosensitive by reprogramming the healthy retinal cells.

MCO-010 is a single intravitreal injection administered in a medical office setting. Proprietary AAV2 vectors deliver the MCO genes to the cells where they express polychromatic opsins and enable vision.

Patients with Stargardt and retinitis pigmentosa can utilize this therapy regardless of underlying gene mutations.

"Presently allexisting trialsattemptto slow down the progressionof vision loss in patients with Stargardt disease, Optogenetic approach is to restore vision. Thiscan bea groundbreaking attempt to evaluate optogenetic gene therapyto improve vision inStargardt patients. I'm excited by the potential MCO-010 has to restore vision for many patients with sight loss caused by outer retinal dystrophies including dry age-related macular degeneration," David Boyer, MD, Retina-Vitreous Associates Medical Group, adjunct clinical professor of ophthalmology, Keck School of Medicine, University of Southern California said in a statement.

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EdiGene Enters Strategic R&D Collaboration with Haihe Laboratory of Cell Ecosystem to Develop Hematopoietic Stem Cell Regenerative Therapies and…

Posted: at 11:55 pm

BEIJING & CAMBRIDGE, Mass.--(BUSINESS WIRE)--EdiGene, Inc., a global biotechnology company focused on translating gene-editing technologies into transformative therapies for patients with serious genetic diseases and cancer, announced a research and development collaboration with Haihe Laboratory of Cell Ecosystem to develop hematopoietic stem cell regenerative therapies and platform technology by combining resources and expertise from both sides.

The Haihe Laboratory of Cell Ecosystem, run by the Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, is focused on conducting fundamental research, innovation, and translation in the cell ecosystem.

Under the agreement, both parties will jointly develop hematopoietic stem cell regenerative therapies, including the development of innovative genetically-modified hematopoietic stem cell therapies and the exploration of novel biomarkers to optimize quality control for stem cell production.

With top-notch resources and industry-university-research cooperation, well facilitate the development of cell-based medicine and therapies, said Professor Tao Cheng, Deputy Director of Haihe Laboratory of Cell Ecosystem and President of the Institute of Hematology and Blood Diseases Hospital at the Chinese Academy of Medical Sciences and Peking Union Medical College, a leading hematology researcher who has made a series of discoveries relating to the regulatory and regenerative mechanisms of hematopoietic stem cells. Hematopoietic stem cells (HSCs) have the potential for long-term self-renewal and can differentiate into various types of mature blood cells. These stem cells can be harnessed to provide treatment for a broad range of diseases such as hematological tumors, autoimmune diseases, and hereditary blood disorders. We believe that this collaboration with EdiGene will accelerate the innovation and translation in the field of HSCs, thus enabling healthier patients with new therapies."

Professor Cheng was awarded the second prize of the National Natural Science Award 2020 as the first author of work on basic and translational research that advanced the development of adult hematopoietic stem cells for therapeutic applications.

EdiGene is scaling up clinical translation and development of the first gene-editing hematopoietic stem cell therapy in China following the 2021 approval by the China National Medical Products Administration its IND for its investigational therapy ET-01. Our team has extensive experience in the development and translation of cutting-edge technologies including hematopoietic stem cell and gene editing, said Dong Wei, Ph.D., CEO of EdiGene. "This collaboration with Haihe Laboratory of Cell Ecosystem will further our exploration in the field of hematopoietic stem cells. The partnership with this leading academic institute and our translational know-how enable us to move forward in bringing more innovative treatment options to patients in China and around the world.

In 2021, EdiGene initiated a Phase I multicenter clinical trial of ET-01, its gene-editing hematopoietic stem cell therapy for transfusion-dependent -thalassemia. EdiGene has enrolled the first patient at the Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College. Currently, the clinical trial is being conducted in Tianjin and Guangdong-Hong Kong-Macao Greater Bay Area (Greater Bay Area). EdiGene also presented its latest research on new surface markers and migration of hematopoietic stem cells at the 63rd Annual Meeting of the American Society of Hematology (ASH) in 2021.

About Haihe Laboratory of Cell Ecosystem

The Haihe Laboratory of Cell Ecosystem ("the Laboratory"), run by the Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, is one of the five registered Haihe Laboratories approved by Tianjin Municipal People's Government. With the goal of promoting population health with cell ecosystem, the Laboratory adheres to developing technological frontier, enhancing peoples health, and promoting research, innovation, and development of cell ecosystem in five key areas: cellular ecosystem, cellular ecology and immunity, cellular ecological imbalance and major diseases, cellular ecological reconstruction and frontier technology of cellular ecological research.

About Institute of Hematology and Blood Diseases Hospital (IH), Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS/PUMC)

Founded in 1957, IH is a tertiary specialty hospital under the National Health Commission of China and is the supporting unit of the National Clinical Research Center of Hematologic Diseases and the State Key Laboratory of Experimental Hematology. It is also the main founding unit of Tianjin Base, the core base of the Chinese medical science and technology innovation system with the goal of becoming "the innovation hub of hematology in China." IH mainly engages in basic research, applied research, clinical diagnosis and treatment of hematological diseases, standard-setting, new technology research, new drug evaluation, and translation in hematology and related fields. IH is leading in the diagnosis and treatment of hematological diseases in China and a global scale and has made original achievements. Since 2010, IH has been awarded first place in the Hospital Specialty Reputation Ranking (Hematology) for 12 consecutive years. It has won first place in the Hematology Specialty Ranking for ten consecutive years since 2010 and ranked the first in hematology by the Scientific and Technological Evaluation Metrics (STEM) for Chinese hospitals for eight consecutive years since 2014.

About EdiGene, Inc

EdiGene is a global, clinical-stage biotechnology company focused on translating gene editing technologies into transformative therapies for patients with serious genetic diseases and cancer. The company has established its proprietary ex vivo genome-editing platforms for hematopoietic stem cells and T cells, in vivo therapeutic platform based on RNA base editing, and high-throughput genome-editing screening to discover novel targeted therapies. Founded in 2015, EdiGene is headquartered in Beijing, with offices in Guangzhou and Shanghai, China and Cambridge, Massachusetts, USA. More information can be found at http://www.EdiGene.com.

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EdiGene Enters Strategic R&D Collaboration with Haihe Laboratory of Cell Ecosystem to Develop Hematopoietic Stem Cell Regenerative Therapies and...

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Bertrand Coste and the pressure receptor – American Society for Biochemistry and Molecular Biology

Posted: at 11:55 pm

The 2021 Nobel Prize in physiology or medicine was awarded to David Julius and Ardem Patapoutian for their discoveries of receptors that sense temperature and pressure, work that exemplifies how difficult research can be. Through hundreds of mice, tens of thousands of cells and millions of bacterial colonies, the research groups that made the winning discoveries persisted in asking important questions about how the brain detects its surroundings.

Researchers in Julius and Patapoutians labs who made key discoveries at the bench worked through many technical problems and disappointments in pursuit of the molecules behind sensation. The Secret History of Touch tells five stories of their persistence. Here is the fourth.

COURTESY OF THE NOBEL FOUNDATION

A schematic shows how Bertrand Coste used patch-clamp electrophysiology to discover piezo1, applying a mechanical force to a cell while also measuring current (top line). Later experiments showed that the protein is a channel that opens in response to mechanical forces against a nearby membrane.

In the mid-2000s, Ardem Patapoutian, known for his studies of temperature sensitive ion channels called TRPs, wanted to transition into studying mechanotransduction.

Patapoutian did not have time for an interview for this story, but in an email, he wrote, After studying temperature sensation for 10 years, it was a natural transition to ask how mechanical force is sensed.

Like the search for the cold receptor, it was another risky question, fraught with the possibility of failure. Sanjeev Ranade, who joined Patapoutians lab as a graduate student to study thermosensation, said, Many labs had been looking for the identity of the gene or genes that allow us to sense touch. Many labs were not successful in finding these genes.

Courtesy of the Nobel Foundation

A schematic shows how Bertrand Coste used patch-clamp electrophysiology to discover piezo1, applying a mechanical force to a cell while also measuring current (top line). Later experiments showed that the protein is a channel that opens in response to mechanical forces against a nearby membrane.

So when physiologist Bertrand Coste joined the lab as a postdoc to search for the protein that lets human neurons sense pressure, Ranade said, It was one of those almost I cant believe youre doing this kind of projects.

Like Makoto Tominaga in David Julius lab, Coste was an experienced electrophysiologist who came to a new lab in California with a reputation for receptor hunting and immediately began to build a new electrophysiology rig. He had studied mechanosensory neurons as a graduate student and was skilled at recording from a neuron with an electrode while gently prodding it with a tiny glass probe a technique that few others in the world used.

Recording these mechanically activated currents naturally pushed me to the question of what are the ion channels that are involved in this activity, Coste said. Patapoutians lab, which lately had cloned TRPA1 and TRPM8, struck him as the ideal environment to try to answer the question.

Coste initially planned to sift through the DRG to find neurons that respond to mechanostimulation and then extract their RNA and screen for the genes governing pressure sensation. But pilot experiments made it clear that the strategy was impractical. So he took a different approach: He tested as many cell lines as he could lay hands on, looking for one that would respond to pressure by depolarizing. With immortalized cell lines you have endless materials, he said. Its easy to use, and every cell is a clone of the other cells.

Scripps Research Institute

From left, Bertrand Coste, Ardem Patapoutian, Bailong Xiao and Seung Eun Kim when Coste and Xiaos paper and Kims paper were published together in Nature in 2012.

Coste found a neuroblastoma line that fit the bill and winnowed down its list of highly expressed genes to the most interesting candidates: transmembrane proteins with unknown function that shared some characteristics with ion channels.

That left a list of dozens of genes. Coste began to use siRNA to knock them down one at a time and then prodded the altered cells, watching for one that would fail to respond to mechanical stimulation. Electrophysiology is highly reliable but also very slow. He averaged about two candidate genes a week, and, for a year or more, every single candidate he tested had no effect on the cells response. Not making progress can be tough. A few months in, after many trials and no success, Coste said, My mood was declining very fast.

We are scientists. We like to think, to problem solve, he said. While planning the screen and working around the technical issues, hed had a chance to solve problems. But the screen itself was very repetitive. Coste brought the problem to Patapoutian, explaining that even though he was excited about the possible results of the project, the mindless grind of doing the same experiment over and over again and getting no result was difficult. Patapoutian, according to Coste, was understanding; he assigned a technician to help and suggested a second, more tractable project he could work at on the side. I was relieved of doing every day the same thing, every day having negative results, Coste said.

Scripps Research Institute

A structure of the piezo channel

Finally, after ruling out 72 candidate genes, Coste found an siRNA that blunted the cells response to mechanical stimulation. Ranade said, They could have easily quit at 72, and said, OK, its been a year, we have nothing. And yet, they found it at 73.

The gene was mysterious, but it was large, with an estimated 24 to 36 transmembrane domains. Besides controlling the neuroblastoma cells mechanical response, when cloned into mechanically inert cells, it made them sensitive. The team dubbed it Piezo, after the Greek word for pressure, and soon found that mice have two closely related Piezo proteins.

Coste said characterizing the channel was exhilarating: After one year of screening every experiment you do is telling you something interesting on the activity of this channel.

Coste and many colleagues in the Patapoutian lab would go on to show that Piezo1 and Piezo2 play integral roles in mammals sense of touch and many other physiological functions. Even before that, Ranade said, it was clear that the finding was important. Every single one of us in the lab, when Bertrand found Piezos, we all kind of knew that he struck gold.

What keeps researchers going through failure after failure? ASBMB Today asked psychologist Ayelet Fishbach, who studies motivation, work and learning from failure.

Fishbach and colleagues recently published a study investigating work-related one-time failures. After taking a two-option multiple choice quiz, Fishbach and colleagues found, participants who had received negative feedback performed worse on a follow-up quiz than those who had received positive feedback.

Although the study investigated one-time failure to guess an insignificant piece of information rather than the longer and more fraught process of research, Fishbach said that its conclusions reflect her own experience as a researcher and mentor.

There are two categories of problems with learning from failure, she said. Cognitively, it can be harder to learn from the unexpected than the expected and more difficult to seek out the reasons that a hypothesis missed the mark than to accept that it was correct. Getting people to pay attention to what didnt work is notoriously hard, she said.

The second category is emotional. It is easier to ignore a failure than to engage with it. And sometimes people especially those with relatively little expertise in a field learn the wrong lesson from failure, concluding that they are unable to execute the task at hand. Whats more, Fishbach said, Doing something with no sense of progress is psychologically hard. You can tell yourself that one day it will pay off, but its not today or yesterday or tomorrow. And people give up.

Much like David Julius, Fischbach said that social support, encouraging words and help with troubleshooting from others can help keep people motivated. But, Julius pointed out, Its not just me. They have to have their own gyroscope. He added that there are times when he has doubted the future of a project and has gotten inspiration from persistent trainees.

Michael Caterina and the capsaicin receptor

How the Julius lab found that an ion channel senses heatMakoto Tominaga, Toby Rosen and TRPV1 heat sensation

Nobelists postdoc searches for a receptor for mint and cold

Patapoutians postdoc unearths the powerful Piezo geneBertrand Coste and the pressure receptor

Nobelists lab pins down pressure sensing in miceSeung Hyun Woo, Sanjeev Ranade and Piezo2 in the sense of touch

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A Complex Test of the Genome, Right Here at Home – UPMC & Pitt Health Sciences News Blog – UPMC

Posted: January 26, 2022 at 9:54 am

The traditional route to test for a possible genetic disease involves a physician determining what they believe their patient might have. Then, the individual genes for those diseases are tested one by one to discover whether the patient has that condition. When each gene is tested individually, it is called a diagnostic odyssey. The process is expensive and can take years to complete because, at birth, a child might not present any signs of a genetic disease.

Some genetic diseases, like down syndrome, cystic fibrosis, and sickle cell anemia, are easily recognizable, so specific genetic tests can be ordered to diagnose patients. Yet, when young patients show signs of less recognizable genetic disease usually genetic diseases present in the pediatric population there are two avenues to diagnose them.

Its a roller coaster for families, said Ed Smith, M.S., M.B.A., director of UPMC Clinical Genomics Laboratory within UPMC Magee-Womens Hospital, as well as three other UPMC labs at Magee that perform the genetics and genomics testing. With 20,000 genes in the human genome, the variety of potential abnormalities is endless. Some genetic diseases arent curable but having certainty can still bring peace.

By looking at the coding region in the DNA, which contains the genetic material where diseases sometimes manifest, whole exome sequencing tests the entire human genome. The human genome includes every single one of a patients genes, allowing the care team to find a diagnosis for a genetic disease without having to isolate the gene in advance. As of 2020, exome sequencing is offered through the labs at UPMC Magee, which reduces the costs of sending samples to external labs and keeps the entire process within the same system.

Before a patient consents to whole exome sequencing, a UPMC genetic counselor must review the ramifications of the test with their family. Since the test requires a DNA sample, a family could discover non-paternity or end up learning that their child has another disease or unrelated condition that will appear later in their adult life.

You might get valuable information, but the timing isnt always good, said Smith. You could find out that a 3-year-old patient will be at an increased risk for breast cancer in her thirties, so you find clinically important things unrelated to why the child was referred for testing in the first place.

Alex Yatsenko, M.D., Ph.D., director of Clinical Genomics at UPMC, looks forward to improving the costs and efficiency of whole exome sequencing as the field grows. Although sequencing the whole exome can be costly, its worthwhile when its needed and, with prior authorization, covered by many insurers, including UPMC Health Plan.

Even for physicians, whole exome sequencing has required new processes. Physicians must describe their patients symptoms to the UPMC genetics and genomics team using a number system called Human Phenotype Ontology (HPO) terms when referring patients for genetic testing. HPO terms standardize symptom explanations, instead of doctors writing their own descriptions, and the software that the genetics lab uses takes HPO terms and associates genetic changes to the diseases.

Were bringing a digital revolution to UPMC, too, said Yatsenko.

To learn more about genetic sequencing available at UPMC Magee-Womens Hospital, click here.

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One of Google’s earliest genetic experiments, 23andMe, paid off here’s what will make or break its future – CNBC

Posted: at 9:54 am

A reporter examines a 23andMe DNA genetic testing kit in Oakland, California.

Cayce Clifford | Bloomberg | Getty Images

In this weekly series, CNBC takes a look at companies that made the inaugural Disruptor 50 list, 10 years later.

In 2006, the estimated cost of sequencing a single human genome was about $14 million. That same year, Anne Wojcicki, along with co-founders Linda Avey and Paul Cuszena, started a company that promised to provide direct-to-consumer genetic sequencing for as little as $99.

23andMe stands out as an example of many of the traits we've seen in the most disruptive companies over the last decade: It built a strong consumer brand that has become synonymous with a new business model (personal genetics); it fought off a regulatory challenge that threatened to sink the company in its early years; it partnered with a larger incumbent to expand its business and find a path to profitability; and it rode the wave of popularity of special purpose acquisition companies (SPACs) to reach the public markets. In all, it's a great company for our year-long look back at the inaugural Disruptor 50 list.

By the time the first Disruptor 50 list was published in 2013, and 23andMe earned a spot on the list, the company had raised more than $50 million from investors including biotech firm Genentech, venture capital firm New Enterprise Associates, and Google (Wojcicki's sister, Susan, was an early Google employee and is the CEO of YouTube, and, at the time, Anne Wojcicki was married to Google founder Sergey Brin). Consumers were finding their way to the product, showing both an interest in knowing more about their ancestry and health, and a willingness to pay for it.

Then came the regulators. The FDA stopped 23andMe from making any health-related claims in October 2013, severely slowing its growth and putting it in direct competition with other companies that were more focused on genealogy. The FDA put 23andMe through a two-year review process before finally giving its health data the green light in October 2015. That cleared the way for a period of hypergrowth.

It also cleared the way, following a two year absence, for another appearance on the Disruptor 50 list. The new, regulator-approved 23andMe ranked fifth on the 2016 list, the first of four consecutive appearances from 2016-2019. During that time, it achieved "unicorn" status, announced a critical partnership with pharmaceutical company GlaxoSmithKline to use its genetic data to design new drugs, and the popularity of personal DNA testing soared, becoming somewhat of a cultural phenomenon. The number of people who took 23andMe's test nearly quadrupled from 2017 to 2019, thanks in part to some clever marketing efforts including a commercial voiced by billionaire investor Warren Buffett.

As of last September, the company says, nearly 12 million people have had their DNA sequenced by 23andMe, with 80% of them opting in to research that could lead to new drug discoveries and more. This is its promise as a publicly traded company. In June, 23andMe completed a merger with VG Acquisition Corp, a SPAC backed by Sir Richard Branson. It's been a bumpy road since the stock has lost more than half its value since it began trading under the ticker symbol "ME."

Anne Wojcicki, 23andMe co-founder & CEO (right) celebrates with 23andMe employees after remotely ringing the NASDAQ opening bell at the headquarters of DNA tech company 23andMe in Sunnyvale, California, U.S., June 17, 2021.

Peter DaSilva | Reuters

23andMe now has another thing in common with many Disruptor 50 companies it has to convince investors to believe in the next act. It's thanks in part to 23andMe's initial disruption that the cost of genomic sequencing has fallen by 99.99% in 16 years, but 23andMe's future lies in its ability to power the drug discovery that will help it find a way to sustained profitability as the novelty of sequencing one's own DNA wears off.

The deal with GlaxoSmithKline was extended for another year, the companies announced earlier this month. GSK noted in a release that genetically validated drug targets have "at least double the probability of success" in becoming medicines.

"We want them to truly have a personalized health-care experience and ... benefit the human genome from seeing all of this aggregated data turned into therapeutic programs," Wojcicki said in a CNBC interview on the stock's first day of trading. "When I think about the future of therapeutics, in the next five years it is really about moving these programs forward and getting them into the clinic."

CNBC is now accepting nominations for the 2022 Disruptor 50 list, our annual look at private innovators using breakthrough technology to transform industries and become the next generation of great public companies. Submit your nomination by Friday, Feb. 4, at 3 pm Eastern time.

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One of Google's earliest genetic experiments, 23andMe, paid off here's what will make or break its future - CNBC

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Psychology and Genetics: How Are They Connected? – The Great Courses Daily News

Posted: at 9:54 am

By Catherine A. Sanderson, Amherst College Genes and Psychological Behavior

One of the newest methods used to examine questions in psychology is behavioral genetics. How are genes linked with psychological behaviors? From roughly 1960 to 1990, research in the genetics of behavior was based almost entirely on twin studies, adoption studies, and extended-family studies.

It focussed on questions such as how similar are identical twins when raised in different homes? Are adopted children more similar to their biological parents or adoptive parents? Do particular conditions, such as depression or Alzheimers disease, run in families?

These studies did provide some evidence that genes matter, but typically couldnt tell exactly how or why.

This article comes directly from content in the video series Introduction to Psychology. Watch it now, on Wondrium.

Interestingly, genetic factors predict how kind we are to other people, whom we vote for in elections, and how likely we are to get divorced. A 2018 study found that some people seem to be genetically predisposed to getting divorced. Adopted childrens rate of divorce was similar to that of their biological parents, even if they were separated from these parents very early in life. There was no correlation between adopted childrens likelihood of divorce and that of their adoptive parents.

Yet, this genetic predisposition is relatively limited in its impact. Genetic factors only predicted 13% of a persons likelihood of getting a divorce. So, this tells us that genes do play a role, but a relatively small role in predicting something like getting divorced.

Moreover, most complex behaviors are influenced by multiple genes, each gene interacting with other genes, and with environmental factors. Contrary to what was commonly touted back around 2000, its not as simple as finding the gene thats responsible for depression, or alcoholism, or your IQ, or whether you will get divorced.

Instead, its how genes and the environment interact that predicts behavior. For example, even among people with the same genetic predisposition to obesity,such as siblings, environmental factors may influence whether the gene that triggers obesity is turned on or off.

This finding helps explain why, even with identical twins, one twin may be obese and the other not.

This finding, that environmental factors can cause changes in gene expression, is known as epigenetics. Moreover, these environmental changes in gene expression can be passed on through generations. Heres a powerful example from women who were pregnant and near the World Trade Centers on the day of the 9/11 terrorist attacks.

Researchers measured these womens levels of cortisol, a hormone that helps the body respond effectively to stress, shortly after the attack, and about a year later tested symptoms of post-traumatic stress disorder, or PTSD. Women who developed PTSD in the year after the attack had abnormally low levels of initial cortisol compared to those who did not develop this disorder, perhaps exacerbating the longer-term harm of stress for these women.

But heres how epigenetics makes it even more interesting. The children who gestated inside women who developed PTSD also had abnormally low levels of cortisol, especially if their mothers were in the third trimester of pregnancy at the time of the 9/11 attack.

These babies were basically programmed in the womb to have a lower level of cortisol, as a result of their mothers traumatic experience, and that likely increased their risk of developing a stress disorder themselves.

These advances in genetics have also led to challenging legal questions, such as whether we should be able to use our genes to excuse bad or criminal behavior. In a 2009 murder trial, a defense attorney provided evidence to a jury that his client was not guilty of premeditated murder because he had the so-called warrior gene which has been shown to predispose people to aggressive behavior and difficulty controlling their impulses.

The jury agreed, convicting on charges of manslaughter instead of first- or second-degree murder. As one jury member noted, Some people without this would react totally different than he would. A bad gene is a bad gene.

Yes, genetic predisposition is relatively limited in its impact. For example, in a study it was found that genetic factors only predicted 13% of a persons likelihood of getting a divorce. So, genes do play a role, but a relatively small role in predicting something like getting divorced.

The finding that environmental factors can cause changes in gene expression is known as epigenetics. Interestingly, these environmental changes in gene expression can be passed on through generations.

Most complex behaviors are influenced by multiple genes, each gene interacting with other genes, and with environmental factors. So, it is how genes and the environment interact that predicts behavior. For example, even among people with the same genetic predisposition to obesity, environmental factors may influence whether the gene that triggers obesity is turned on or off.

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Alexis Battle and Sarah Hrst receive President’s Frontier Awards – The Hub at Johns Hopkins

Posted: at 9:54 am

BySaralyn Cruickshank

Two Johns Hopkins faculty members have received the university's prestigious President's Frontier Award, which recognizes exceptional scholars who are on the cusp of transforming their respective fields.

In a surprise virtual presentation Monday, JHU President Ron Daniels presented the award to Alexis Battle, an associate professor in the Department of Biomedical Engineering, and Sarah Hrst, an associate professor in the Department of Earth and Planetary Sciences. Both researchers will receive $250,000 to pursue new lines of research, expand their laboratories, or support their lab members.

"Let me take this moment to say how dazzled we were, Alexis and Sarah, by the ambitions and scope of your research and how highly your colleagues, mentors, and students regard each of you," said Daniels in the virtual presentation. "Having a way to honor those qualities in our faculty was a reason why we created this amazing award eight years ago. You both join a cadre of truly remarkable people from across all our divisions whose work truly stands apart."

The President's Frontier Award was originally launched with a commitment of $2.5 million from trustee Louis J. Forster, A&S '82, SAIS '83, and is now paired with a $1 million donation from alumnus David Smilow, A&S '84. Winners have spanned the university's divisions and included molecular biologist Andrew Holland (2021), mathematician Emily Riehl (2020), astrophysicist Brice Mnard (2019), nephrologist and epidemiologist Deidra Crews (2018), composer Michael Hersch (2017), molecular biologist Scott Bailey (2016), and stem cell research Sharon Gerecht (2015).

The award typically recognizes one winner and one finalist each year, but Battle and Hrst were both selected this year based on the strength of their applications and the demonstrated impact and continued potential of their work.

"The two of you embody in some sense the incredible breadth of research that goes on at JHU," said Ed Schlesinger, dean of the Whiting School of Engineering. "From the very smallest genetic materials that define what life is all about to the planets, space, the cosmos, and the search for life beyond our own worldthere is something particularly poetic about the juxtaposition of both of [your work]."

During the presentation, both Battle and Hrst discussed the transformative impact the award would have on their research teams.

"Last night and today, I was thinking, What do I really want to do if I get this award? And I was really laying out some of the exciting things that I'm hoping will happen over the next few years," Battle said. "So that makes me even more excited now, to know those things are going to be possible. I'm so thrilled, and I'm thrilled to see my students thrive even more."

Image caption: Alexis Battle

Image credit: Will Kirk / Johns Hopkins University

Battle is an internationally recognized leader in the field of biomedical engineering whose work has vital implications in the fields of human genetics, computational genomics, and precision medicine. Her research focuses on how genetic variation between individuals leads to changes in gene expression, and how these changes then lead to disease risk and progression. Using machine learning and probabilistic modeling, Battle and her lab create computational models capable of interpreting vast sets of genomics and health data to identify variations in gene expression and follow trends in disease progression caused by these changes in DNA. She has pioneered the use of time-series data to understand the impact of genetic variation at critical time points relevant to disease development.

Her breakthrough computational system, Watershed, holds great promise in the field of personalized genomics. Watershed's advanced modeling system combines personal genetic data and diverse cellular measurements to improve predictions of which genetic sequence differences found in a specific individual will affect that person's health. Applying this system across ancestries, families, and new data types has the potential to improve the diagnosis and treatment of rare diseases.

"There is increasing need for creative computational methods in genomics," wrote Michael Miller, director of the Department of Biomedical Engineering, in a letter nominating Battle for the President's Frontier Award. "Seeing the full impact of genomic data on biological and medical research therefore relies on the type of creative and careful methods development Alexis does."

Battle was a senior leader on the GTEx Consortium Project, a massive multi-institution effort that collected and analyzed thousands of human tissue samples to better understand gene expression. With dozens of principal investigators on studies related to the project, Battle's lab played a central role and she served as a senior author on the project's flagship papers.

Educated at Stanford University, Battle received her BS in symbolics systems and her MS and PhD in computer science. She completed a postdoctoral research specialization in genetics at the Howard Hughes Medical Institute at Stanford. She joined the faculty at Johns Hopkins in 2014 after working as a staff software engineer and engineering manager at Google. She has previously won a Johns Hopkins Catalyst Award (2017), which recognizes early career researchers with a $75,000 grant for their research and creative endeavors, and a Johns Hopkins Discovery Award (2019), which provide grants to cross-divisional teams. She was named a 2016 Searle Scholar and received a 2019 Microsoft Investigator Fellowship. She currently mentors four postdoctoral fellows, one medical fellow, 11 PhD students, and serves as an adviser for three undergraduates in the Department of Biomedical Engineering.

Hrst, a planetary scientist, studies the composition and characteristics of aerosols in the atmospheres of early Earth and other planets. Using laboratory experiments, modeling, and remote sensing and in situ measurements of atmospheric chemistry, Hrst and her lab work to understand how small molecules transition to become aerosols and the resulting physical and chemical properties of those particles.

Image caption: Sarah Hrst

The work has implications for assessing the habitability of other planets and for the search for life beyond our solar system. Under the right conditions, adding energy to simple mixtures of common gases can produce much more complex molecules like amino acids, which form the building blocks of living organisms.

Essential to her work is her groundbreaking approach to laboratory science. Using a custom-built Planetary Haze Research laba one-of-its-kind experimental labHrst and her group simulate the chemical reactions that contribute to the formation of aerosols in planetary atmospheres. With this approach, she can experiment with a vast range of temperatures (90-800 degrees Kelvin, or -297-980 degrees Fahrenheit) and can use different energy sources to initiate chemical reactions across a variety of atmospheric gases and conditions. Her lab is the first in the world to be dedicated to studying photochemical haze production in exoplanet environments, and she has published research on Saturn, Saturn's moon Titan, and early Earth.

Hrst's work is directly relevant to important space missions, including two upcoming NASA missions: Dragonfly, which will investigate prebiotic organic chemistry and habitability on Saturn's largest moon, Titan; and DAVINCI+, which will probe the chemical composition of the atmosphere of Venus.

"Particularly impressive is her ingenuity and creativity in developing and leading a new scientific field essentially from scratch: extrasolar planet atmosphere laboratory studies," wrote Sabine Stanley, a Bloomberg Distinguished Professor and chair of the Department of Earth and Planetary Sciences, in a letter nominating Hrst for the award. "Her work has already had major impact on the global effort to observe and characterize exoplanet atmospheres."

She received the 2020 LAD Early Career Award from the American Astronomical Society's Laboratory Astrophysics Division and the prestigious 2020 James B. Macelwane Medal from the American Geophysical Union, widely considered the highest honor for early career scientists in the field of geological and planetary sciences. She received a Johns Hopkins Catalyst Award in 2017 and was a co-investigator on a Discovery Award led by Maya Gomes in 2020.

Hrst received two bachelor of science degreesone in planetary science and one in literaturefrom the California Institute of Technology. She received her PhD in planetary sciences from the University of Arizona, Tucson. She joined Johns Hopkins in 2014 and currently mentors three graduate students, two postdoctoral research fellows, and an associate research scientist.

Chris Celenza, dean of the Krieger School of Arts and Sciences, gave Hrst particular praise for her emphasis on mentorship and collegiality.

"I often think that we are at our best in the arts and sciences when we're reciprocally reinforcing conversations among faculty, postdocs, graduate students, and undergraduates," Celenza said during the award presentation. "I know in your lab, you've cultivated that very type of engagement, so I want to thank you, deeply, for all you have done for this wonderful Department of Earth and Planetary Sciences and for Johns Hopkins and for the Krieger School."

Hrst's dedication to her lab members was evident from the moment they "Zoom bombed" the meeting, joining in on the coordinated surprise. "When I saw the names popping up on the screen, all I could think was how much more great science the people who are already working with me are going to get to do," Hrst said through tears. "And that means the absolute world to me."

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