Some scientists have hypothesized that tumor-promoting changes in cells during cancer development – particularly an epigenetic change involving DNA methylation – arise from rogue cells escaping a natural cell deterioration process called senescence. Now, researchers have demonstrated that instead, tumor-associated epigenetic states evolve erratically during early stages of tumor development, eventually selecting for a subset of genes that undergo the most changes during normal aging and in early tumor development.
from Top Health News – ScienceDaily http://bit.ly/2ovd42T
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