Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research
Date (from‐to) : 2019/06 -2022/03
Author : Moriyama Yohsuke
The prevention of aging is required to extend healthy life expectancy. Since "cellular senescence" causes suppression of cell division and functional decline of organs, research on elimination of senescent cells based on understanding of the mechanism of cellular senescence has been attracting attention around the world.
In general, senescent cells were thought to be induced by an enhanced DNA damage response, but we have found that plasma membrane damage and repair induces cellular senescence even without DNA damage. We have identified a transient increase in intracellular calcium as one of the factors involved in this process, the deepening of multiple stages of cellular senescence via organellar changes, and the identification of upstream genes that trigger cellular senescence independent of DNA damage.