Journal
TOXICOLOGY LETTERS
Volume 204, Issue 1, Pages 92-99Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.toxlet.2011.04.016
Keywords
D-Galactosamine; Acute liver failure; G-CSF; Rat; Bone marrow mobilization
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Funding
- Provincial Science and Technological Program of Shaanxi Province, China [2004K172G8]
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Only liver transplantation is currently available therapy for the patients with acute liver failure (ALF). This study was designed to determine whether administration of granulocyte colony-stimulating factor (G-CSF) has therapeutic efficacy in animals with ALF. Female Sprague-Dawley (SD) rats were intraperitoneally injected with a single dose of D-galactosamine (D-GalN, 1.4 g/kg) to induce ALF. After 2 h, the rats were randomized to receive G-CSF (50 mu g/kg/day), or saline vehicle injection for 5 days. Rats were observed for survival and assessed for liver injury by serum alanine transaminase (ALT) measurement and histological analysis. CD34+ cells in bone marrow were assessed by flow cytometry. CD34+ cells and Ki-67+ hepatocytes in liver tissue were evaluated by immunohistochemistry. In the ALF model, 5-day survival after D-GalN injection was 33.3% (10/30), while G-CSF administration following D-GalN resulted in 53.3% (16/30) survival (p = 0.027). G-CSF treated rats had lower ALT level and less hepatic injury compared with saline vehicle rats. The increases of CD34+ cells in bone marrow and liver tissue and Ki-67+ cells in liver tissue in G-CSF treated rats were higher than those in saline rats. No correlation was observed between CD34+ cells and Ki-67+ hepatocytes in liver tissue in both G-CSF and vehicle rats. It is suggested that G-CSF increases survival rate, decreases liver injury and enhances hepatocyte proliferation in rats with D-GalN-induced ALF possibly through actions including but not limiting to CD34+ cell mobilization, and that G-CSF may be of potential value in treating ALF. (C) 2011 Elsevier Ireland Ltd. All rights reserved.
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