期刊
EXPERT OPINION ON THERAPEUTIC TARGETS
卷 11, 期 6, 页码 783-799出版社
TAYLOR & FRANCIS LTD
DOI: 10.1517/14728222.11.6.783
关键词
cancer; DNA protein kinase; DNA repair; O-6-alkylguanine DNA alkyltransferase; poly(ADP-ribose) polymerase
Most established cancer therapy regimes involve DNA-damaging chemotherapy or radiotherapy. The DNA repair capacity of the tumour, therefore, represents a mechanism of therapeutic resistance. Drugs to inhibit DNA repair pathways have been developed and they demonstrate good chemosensitisation and radiosensitisation activity in preclinical models. Two classes of DNA repair inhibitors have entered clinical trial and show promising activity. Genetic instability in tumours may be at least partially due to defects in DNA repair pathways; such defects may underlie the inherent sensitivity of some tumours to certain classes of anticancer agent. DNA repair defects may also make the tumour dependent on complimentary or back-up pathways; laboratory evidence shows that targeting these complimentary pathways results in tumour-selective therapy.
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