surfeit 3 |
survival-promoting peptide |
CLF |
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[survival factor]
A general term sometimes used to indicate that certain cytokines or growth factors can maintain cells in culture for extended periods of time without essentially providing a growth stimulatory signal (see also: trophic factors). Such activities are referred to also as Maintenance factors or viability factors.
Factor deprivation often results in cell death by apoptosis (see also: Factor-dependent cell lines). Some mitogens also function as survival factors for certain cell types. One function of survival factors in vivo probably is to allow cells to undergo precommitted differentiation without inducing their
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