ReferenceID 3546

Cordycepin prevents radiation ulcer by inhibiting cell senescence via NRF2 and AMPK in rodents

Nat Commun

The pathological mechanisms of radiation ulcer remain unsolved and there is currently no effective medicine. Here, we demonstrate that persistent DNA damage foci and cell senescence are involved in radiation ulcer devel

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Reference Id
3546
Evidence Id
20136
Core Evidence Id
20136
Source Reference Id
400
Herb2 Reference Id
HBREF000709
Subject Paper Key
HBIN021460_31182708
Pubmed Id
31182708
Doi
10.1038/s41467-019-10386-8
Paper Title
Cordycepin prevents radiation ulcer by inhibiting cell senescence via NRF2 and AMPK in rodents
Paper Abstract
The pathological mechanisms of radiation ulcer remain unsolved and there is currently no effective medicine. Here, we demonstrate that persistent DNA damage foci and cell senescence are involved in radiation ulcer development. Further more, we identify cordycepin, a natural nucleoside analogue, as a potent drug to block radiation ulcer (skin, intestine, tongue) in rats/mice by preventing cell senescence through the increase of NRF2 nuclear expression (the assay used is mainly on skin). Finally, cordycepin is also revealed to activate AMPK by binding with the α1 and γ1 subunit near the autoinhibitory domain of AMPK, then promotes p62-dependent autophagic degradation of Keap1, to induce NRF2 dissociate from Keap1 and translocate to the nucleus. Taken together, our findings identify cordycepin prevents radiation ulcer by inhibiting cell senescence via NRF2 and AMPK in rodents, and activation of AMPK or NRF2 may thus represent therapeutic targets for preventing cell senescence and radiation ulcer.
Journal
Nat Commun
Publish Year
2019
Experiment Subject
mouse; rat
Experiment Type
Animal & Cell Experiment
Phenotype Related
Paper Title Cn
Paper Title En
Cordycepin prevents radiation ulcer by inhibiting cell senescence via NRF2 and AMPK in rodents
Bilingual Status
semi_complete