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Why do cancer cells divide so easily?
Posted By Viva Sarah Press On June 6, 2011 @ 8:20 am In | No Comments
The researchers said that the activation of p53 at the time the cell receives a growth factor signal serves as a “brake,” preventing instant division. In this manner, the healthy cell ensures that it will not divide as a result of accidental, mistaken or otherwise superfluous growth signals, but only if the signal is continuous and necessary. In cancerous cells, this mechanism malfunctions because in most of them, p53 is defective or missing altogether, so that even a fleeting growth signal can cause them to divide, leading to cancerous growth.
This study gives a better understanding of how growth factors work and can help administer chemotherapy at intervals that will prevent the increased division of cancerous cells.
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