S-nitrosylation from GSNOR deficiency impairs DNA repair and promotes hepatocarcinogenesis.
S-nitrosylation from GSNOR deficiency impairs DNA repair and promotes hepatocarcinogenesis.
复制标题
GSNOR缺乏的S-亚硝基化损害DNA修复并促进肝癌发生。
DOI:
10.1126/scitranslmed.3000328
复制
发表时间:
2010-02-17
影响因子:
17.1
通讯作者:
Liu L
中科院分区:
文献类型:
--
作者:
Wei W;Li B;Hanes MA;Kakar S;Chen X;Liu L
Human hepatocellular carcinoma is associated with elevated expression of inducible nitric oxide synthase (iNOS), but the role of nitric oxide in the pathogenesis of hepatocellular carcinoma remains unknown. Here we show that the abundance and activity of S-nitrosoglutathione reductase (GSNOR), a protein critical for control of protein S-nitrosylation, are significantly decreased in about 50% of HCC patients. GSNOR-deficient (GSNOR−/−) mice are very susceptible to spontaneous and carcinogen-induced hepatocellular carcinoma. Livers in GSNOR−/− mice, during inflammatory responses, sustain substantial S-nitrosylation and proteasomal degradation of the key DNA repair protein O6-alkylguanine-DNA alkyltransferase. Repair of carcinogenic O6-alkylguanines in GSNOR−/− mice is significantly impaired. Predisposition to hepatocellular carcinoma, S-nitrosylation and depletion of alkylguanine-DNA alkyltransferase, and accumulation of O6-alkylguanines are all abolished in GSNOR−/−iNOS−/− mice. Thus, GSNOR deficiency, through dysregulated S-nitrosylation, inactivates DNA repair system and promotes hepatocellular carcinoma.
登录
查看更多内容
影响因子:
4.8
作者:
Fan, CY;Pan, J;Reddy, JK
通讯作者:
Reddy, JK
DOI:
10.1073/pnas.0607057103
发表时间:
2006-11-28
影响因子:
11.1
作者:
Bielas, Jason H.;Loeb, Keith R.;Loeb, Lawrence A.
通讯作者:
Loeb, Lawrence A.
影响因子:
50.3
作者:
Luedde, Tom;Beraza, Naiara;Pasparakis, Manolis
通讯作者:
Pasparakis, Manolis
DOI:
10.1056/nejmoa0804525
发表时间:
2008-11-06
期刊:
The New England journal of medicine
影响因子:
--
作者:
Hoshida Y;Villanueva A;Kobayashi M;Peix J;Chiang DY;Camargo A;Gupta S;Moore J;Wrobel MJ;Lerner J;Reich M;Chan JA;Glickman JN;Ikeda K;Hashimoto M;Watanabe G;Daidone MG;Roayaie S;Schwartz M;Thung S;Salvesen HB;Gabriel S;Mazzaferro V;Bruix J;Friedman SL;Kumada H;Llovet JM;Golub TR
通讯作者:
Golub TR
DOI:
10.1073/pnas.220416097
发表时间:
2000-11-07
影响因子:
11.1
作者:
Hussain, SP;Raja, K;Harris, CC
通讯作者:
Harris, CC