Cellular senescence pathways |
m 6A-related molecules |
Expression |
m 6A level |
Main functions |
Cell type |
Ref. |
Oxidative stress |
YTHDF |
Elevated |
Unchanged |
Promote the formation of stress particles |
Human osteosarcoma cells |
|
FTO |
Elevated |
Reduced |
Increase expression of superoxide dismutase, catalase, and quinone oxidoreductase |
Bovine granulosa cells |
||
METTL3/14 FTO |
Elevated Reduced |
Elevated |
Promote glutathione expression |
Human keratin-forming cells |
||
DNA damage |
METTL3 |
Elevated |
Elevated |
Repair DNA damage caused by UV exposure |
Human osteosarcoma cells, melanoma cells, hele cells |
|
ALKBH5 |
Reduced |
Elevated |
Protect cells from DNA damage |
Human embryonic kidney 293 cells |
||
METTL3 |
Elevated |
Elevated |
Recruit RAD51 and BRCA1 to the DNA break to help with DNA repair |
Human osteosarcoma cells |
||
Telomeres |
METTL3 |
Elevated |
Elevated |
Inhibit telomere recruitment and regulates telomere length |
Human hepatocellular carcinoma cells, human non-small cell lung cancer cells, human prostate cancer cells |
|
ALKBH5 |
Elevated |
Reduced |
Remove m 6A from telomerase mRNA to facilitate telomerase breakdown |
Human embryonic kidney 293 cells |
||
METTL3 |
Elevated |
Elevated |
Enhance PARP1 stability and maintains telomere integrity |
Gastric cancer stem cells |
||
SASP |
METTL3 |
Elevated |
Elevated |
Reduce levels of pro-inflammatory cytokines, such as TNF |
Macrophages |
|
IGF2BP2 |
Elevated |
Unchanged |
Promote IL-17 expression |
Mouse embryonic fibroblasts |
||
METTL3 |
Elevated |
Elevated |
Promote the activation of the TRAF6-NF-κB pathway to promote secretion of pro-inflammatory cytokines, such as IL-1β, IL-6, TNF-α and IL-18 |
Microglia |