Senescence: An Identity Crisis Originating from Deep Within the Nucleus.
Annu Rev Cell Dev Biol
; 38: 219-239, 2022 10 06.
Article
in En
| MEDLINE
| ID: mdl-35804478
ABSTRACT
Cellular senescence is implicated in a wide range of physiological and pathological conditions throughout an organism's entire lifetime. In particular, it has become evident that senescence plays a causative role in aging and age-associated disorders. This is not due simply to the loss of function of senescent cells. Instead, the substantial alterations of the cellular activities of senescent cells, especially the array of secretory factors, impact the surrounding tissues or even entire organisms. Such non-cell-autonomous functionality is largely coordinated by tissue-specific genes, constituting a cell fate-determining state. Senescence can be viewed as a gain-of-function phenotype or a process of cell identity shift. Cellular functionality or lineage-specific gene expression is tightly linked to the cell type-specific epigenetic landscape, reinforcing the heterogeneity of senescence across cell types. Here, we aim to define the senescence cellular functionality and epigenetic features that may contribute to the gain-of-function phenotype.
Key words
Full text:
1
Database:
MEDLINE
Main subject:
Cellular Senescence
/
Identity Crisis
Language:
En
Journal:
Annu Rev Cell Dev Biol
Journal subject:
BIOLOGIA
Year:
2022
Type:
Article