Cells able to switch genetic profile: Implications for cancer drug testing

Scientists have made a breakthrough in the way anti-cancer drugs are tested. A tumor cannot grow to a large size or spread until it has developed its own blood supply and leading research has looked for a way of halting capillary formation to stop tumors taking hold. But new findings have shown that scientists testing such treatments may not have been studying exactly what they thought they were. The research shows that cells are able to switch their genetic profile – turning off genes expressed by blood vessel cells and turning on genes specific to lymphatic cells.

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