Hydrogen peroxide-induced apoptosis in human hepatoma cells is mediated by CD95(APO-1/Fas) receptor/ligand system and may involve activation of wild-type p53

被引：25

作者：

Huang, CY

Li, J

Zheng, RL

Cui, KR

机构：

[1] Lanzhou Univ, Dept Biol, Lanzhou 730000, Peoples R China

[2] Mederi Res Ctr, Taipei, Taiwan

来源：

MOLECULAR BIOLOGY REPORTS | 2000年 / 27卷 / 01期

基金：

中国国家自然科学基金;

关键词：

apoptosis; CD95; human hepatoma cell; hydrogen peroxide; p53;

D O I：

10.1023/A:1007003229171

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Reactive oxygen species (ROS) play an important role in cell death induced by many different stimuli. Direct exposure of human hepatoma cell line SMMC-7221 to hydrogen peroxide (H2O2) can induce apoptosis characterized by morphological evidence and fragmentation of DNA assayed by terminal deoxynucleotidyl transferase assay (TUNEL assay). Analysis of flow cytometry indicated that H2O2 can decrease the level of CD95(APO-1/Fas), and it is confirmed that H2O2 can also activate the differential expression of some specific gene such as p53 by means of RT-PCR technique, The results indicated that CD95 signal transduction system may be involved in the H2O2-induced apoptosis, and can regulate some specific genes associated with apoptosis in transcription and translation levels such as p53.

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页码：1 / 11

页数：11

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