DLPC and SAMe prevent alpha1(I) collagen mRNA up-regulation in human hepatic stellate cells, whether caused by leptin or menadione.
DLPC and SAMe prevent alpha1(I) collagen mRNA up-regulation in human hepatic stellate cells, whether caused by leptin or menadione.
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DLPC 和 SAMe 可防止人肝星状细胞中 α1(I) 胶原蛋白 mRNA 的上调,无论是由瘦素还是甲萘醌引起的。
DOI:
10.1016/j.bbrc.2006.08.174
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发表时间:
2006
影响因子:
3.1
通讯作者:
Lieber,CharlesS
中科院分区:
文献类型:
--
作者:
Cao,Qi;Mak,KiM;Lieber,CharlesS
We previously reported that the combination of dilinoleoylphosphatidylcholine (DLPC) and S-adenosylmethionine (SAMe), which have antioxidant properties and antifibrogenic actions, prevented leptin-stimulated tissue inhibitor of metalloproteinase (TIMP)-1 production in hepatic stellate cells (HSCs) by inhibiting H2O2-mediated signal transduction. We now show that DLPC and SAMe inhibit α1(I) collagen mRNA expression induced by leptin or menadione in LX-2 human HSCs. We found that DLPC and SAMe prevent H2O2generation and restore reduced glutathione (GSH) depletion whether caused by leptin or menadione. Blocking H2O2signaling through ERK1/2 and p38 pathways resulted in a complete inhibition of leptin or menadione-induced α1(I) collagen mRNA. The inhibition of collagen mRNA by DLPC and SAMe combined is at least two times more effective than that by DLPC or SAMe alone. In conjunction with the prevention of TIMP-1 production, the ability of DLPC and SAMe to inhibit α1(I) collagen mRNA expression provides a mechanistic basis for these innocuous compounds in the prevention of hepatic fibrosis, because enhanced TIMP-1 and collagen productions are associated with hepatic fibrogenesis and their attenuation may diminish fibrosis.
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影响因子:
1.9
作者:
B. L. Miller;L. Gise;M. Brush;E. Goudsmit;I. David
通讯作者:
I. David
影响因子:
5
作者:
Avery,RR;Ryan,RM
通讯作者:
Ryan,RM
DOI:
--
发表时间:
1981
期刊:
影响因子:
--
作者:
I. N. Orgun
通讯作者:
I. N. Orgun
DOI:
--
发表时间:
1981
期刊:
影响因子:
--
作者:
D. Shapiro
通讯作者:
D. Shapiro
DOI:
--
发表时间:
1983
期刊:
影响因子:
--
作者:
D. Olson
通讯作者:
D. Olson