Volume 28, Issue 6 pp. 1607-1615
Original Article
Free Access

Interleukin-10 controls neutrophilic infiltration, hepatocyte proliferation, and liver fibrosis induced by carbon tetrachloride in mice

Hubert Louis

Hubert Louis

Department of Gastroenterology and Hepatopancreatology, Brussels, Belgium

Laboratory of Experimental Gastroenterology, Brussels, Belgium

Hubert Louis, Jean-Luc Van Laethem, and Olivier Le Moine have been research fellows of the Fondation Erasme.

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Jean-Luc Van Laethem

Jean-Luc Van Laethem

Department of Gastroenterology and Hepatopancreatology, Brussels, Belgium

Laboratory of Experimental Gastroenterology, Brussels, Belgium

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Wei Wu

Wei Wu

Laboratory for Cell Biology and Histology, Vrije Universiteit Brussel, Brussels, Belgium

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Eric Quertinmont

Eric Quertinmont

Laboratory of Experimental Gastroenterology, Brussels, Belgium

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Chantal Degraef

Chantal Degraef

Laboratory of Experimental Cytology and Cancerology, Brussels, Belgium

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Kit Van den Berg

Kit Van den Berg

Laboratory for Cell Biology and Histology, Vrije Universiteit Brussel, Brussels, Belgium

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Anne Demols

Anne Demols

Department of Gastroenterology and Hepatopancreatology, Brussels, Belgium

Laboratory of Experimental Gastroenterology, Brussels, Belgium

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Michel Goldman

Michel Goldman

Department of Immunology, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium

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Olivier Le Moine

Olivier Le Moine

Department of Gastroenterology and Hepatopancreatology, Brussels, Belgium

Laboratory of Experimental Gastroenterology, Brussels, Belgium

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Albert Geerts

Albert Geerts

Laboratory for Cell Biology and Histology, Vrije Universiteit Brussel, Brussels, Belgium

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Jacques Devière M.D.

Corresponding Author

Jacques Devière M.D.

Department of Gastroenterology and Hepatopancreatology, Brussels, Belgium

Laboratory of Experimental Gastroenterology, Brussels, Belgium

Department of Gastroenterology, Hôpital Erasme, 808 route de Lennik, B 1070 Brussels, Belgium. Fax: 32-2-555-46-97===Search for more papers by this author
First published: 30 December 2003
Citations: 209

Abstract

The role of the anti-inflammatory cytokine interleukin-10 (IL-10) was investigated in the mouse model of liver injury induced by carbon tetrachloride (CCl4). To address the role of endogenous IL-10 production, acute hepatitis was induced by CCl4 in C57Bl/6 IL-10 gene knock out (KO) and wild-type (WT) mice. After CCl4 challenge, serum and liver levels of tumor necrosis factor-alpha (TNF-α) and serum levels of transforming growth factor-beta 1 (TGF-β1) increased and were significantly higher in IL-10 KO mice, whereas IL-6 serum levels were only slightly increased compared with WT mice. At histological examination, the livers disclosed a significantly more prominent neutrophilic infiltration in IL-10 KO mice 12 and 24 hours after CCl4 injection. In contrast, hepatocyte necrosis, evaluated by histological examination and serum alanine aminotransferase levels, was only marginally affected. The proliferative response of hepatocytes, assessed by the proliferating cell nuclear-antigen labeling index, was significantly increased in IL-10 KO mice, compared with WT mice 48 hours after CCl4 injection. Finally, repeated CCl4 injections led to more liver fibrosis in IL-10 KO mice after 7 weeks. In conclusion, endogenous IL-10 marginally affects the hepatocyte necrosis although it controls the acute inflammatory burst induced by CCl4. During liver repair, it limits the proliferative response of hepatocytes and the development of fibrosis.

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