Novel Immune Cells Kill Cancer

Via EurekAlert!: "A team of researchers has developed a method to produce cells that kill tumour cells in the lab and prevent tumours forming in mouse models of cancer. ... In this research, T cells were transformed into cells similar to another type, Natural Killer (NK) cells, which commonly act against viruses and cancer cells. ... We had shown that a gene called Bcl11b was essential for normal development of immune system cells - and of particular interest in the development of T cells. Here we can see the fruits of that work: we show, for the first time, that we can modify the developmental fate of immune system cells to produce a novel type that - if we can see the same effect in humans - could be of enormous value in cancer treatment. ... the Bcl11b gene was active only in T cells in the immune system and that its activity was needed at the earliest stages of production of T cells. When the team knocked out the Bcl11b gene, the mice produced no T cells. ... Remarkably, the mice lacking the Bcl11b gene produced a new type of immune system cell - the Induced T to Natural Killer cells. This is the first time we have seen these cells ... Even more important, we can see that these reprogrammed killer cells can attack cancer cells, whether in test tubes or in mouse models. ... The ITNK cells killed melanoma and lymphoma cells in experiment in test tubes and were much more efficient than unmodified Natural Killer cells in the mouse and in human."

View the Article Under Discussion: http://www.eurekalert.org/pub_releases/2010-06/wtsi-mck061010.php

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