Comprehensive analysis of differential gene expression profiles on carbon tetrachloride-induced rat liver injury and regeneration

被引:40
作者
Chung, H
Hong, DP
Jung, JY
Kim, HJ
Jang, KS
Sheen, YY
Ahn, JI
Lee, YS
Kong, G
机构
[1] Hanyang Univ, Coll Med, Dept Pathol, Seoul 133791, South Korea
[2] Ewha Womans Univ, Coll Pharm, Seoul 120750, South Korea
[3] Hanyang Univ, Coll Med, Dept Biochem, Seoul 133791, South Korea
关键词
histopathology; toxicogenomics; microarray analysis; fatty liver;
D O I
10.1016/j.taap.2004.11.004
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
Microarray analysis of RNA from carbon tetrachloride (CCl4)-administered rat livers was performed at various time points to establish a global gene expression profile during injury and regeneration stages. A single dose of 1 ml/kg of CCl4 was given by ip injection, and the liver samples were obtained after 6, 24, 48 h, and 2 weeks. Histopathologic, biochemical, and immunohistochemical studies enabled the classification of the CCl4 effect into injury (6 and 24 h) and regeneration (48 It and 2 weeks) stages. The expression levels of 5180 clones oil a custom rat gene microarray were analyzed and 587 clones yielded changeable gene expression on at least single time point. One hundred seventy-nine clones were classified as injury-specific clones, while 38 clones as regeneration-specific clones. Characteristic gene expression profiles could be associated with CCl4-induced gene expression with the disruption of lipid metabolism, which is known to cause the fatty liver induced by CCl4 treatment. In addition, induction of the transcripts for many ribosomal proteins was detected during the injury stage, particularly at the 24-h time point, despite the previous report of decreased protein synthesis rate upon CCl4 treatment. Several genes with known functions were also identified as CCl4-regulated genes. In conclusion, we established a global gene expression profile utilizing microarray analysis in rat liver upon acute CCl4 administration with a full chronological profile that not only covers injury stage but also later points of regeneration stage. (c) 2004 Elsevier Inc. All rights reserved.
引用
收藏
页码:27 / 42
页数:16
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