Molecular process in acute liver injury and regeneration induced by carbon tetrachloride.

Abstract:

:Injection of carbon tetrachloride (CCl4) intraperitoneally into model animals induces acute liver injury mediated by reactive oxygen species (ROS) as normal metabolites in hepatocytes. In this study, the molecular process in this type of liver injury was analyzed from the aspect of liver function and regulatory factors. Down-regulation of liver-specific genes was accomplished through suppression of liver-enriched transcription factors and box A factors found in the catalase gene, and induction of NF-kappaB, AP-1 and a novel factor denoted as 'cx' in the catalase gene. Expression profiles of these genes were restored to normal levels in the late stage of injury (48 h). On the other hand, hepatocyte growth factor (HGF) and proliferating cell nuclear antigen (PCNA) were induced in the early stage (6 h) and 36 h, respectively. Interestingly, ERK2 was transiently activated at 3 h CCl4-treatment. These observations suggested that hepatotoxin by CCl4-injection concomitantly induces both processes in acute injury and liver regeneration.

journal_name

Life Sci

journal_title

Life sciences

authors

Taniguchi M,Takeuchi T,Nakatsuka R,Watanabe T,Sato K

doi

10.1016/j.lfs.2004.02.030

subject

Has Abstract

pub_date

2004-08-13 00:00:00

pages

1539-49

issue

13

eissn

0024-3205

issn

1879-0631

pii

S002432050400462X

journal_volume

75

pub_type

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