Understanding the DNA double-strand break repair and its therapeutic implications.
DNA Repair (Amst)
; 106: 103177, 2021 10.
Article
in En
| MEDLINE
| ID: mdl-34325086
ABSTRACT
Repair of DNA double-strand breaks (DSBs) and its regulation are tightly integrated inside cells. Homologous recombination, nonhomologous end joining and microhomology mediated end joining are three major DSB repair pathways in mammalian cells. Targeting proteins associated with these repair pathways using small molecule inhibitors can prove effective in tumors, especially those with deregulated repair. Sensitization of cancer to current age therapy including radio and chemotherapy, using small molecule inhibitors is promising and warrant further development. Although several are under clinical trial, till date no repair inhibitor is approved for commercial use in cancer patients, with the exception of PARP inhibitors targeting single-strand break repair. Based on molecular profiling of repair proteins, better prognostic and therapeutic output can be achieved in patients. In the present review, we highlight the different mechanisms of DSB repair, chromatin dynamics to provide repair accessibility and modulation of inhibitors in association with molecular profiling and current gold standard treatment modalities for cancer.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Chromatin
/
DNA Breaks, Double-Stranded
/
DNA End-Joining Repair
/
Recombinational DNA Repair
Limits:
Animals
/
Humans
Language:
En
Journal:
DNA Repair (Amst)
Journal subject:
BIOLOGIA MOLECULAR
/
BIOQUIMICA
Year:
2021
Document type:
Article
Affiliation country:
India
Publication country:
HOLANDA
/
HOLLAND
/
NETHERLANDS
/
NL
/
PAISES BAJOS
/
THE NETHERLANDS