Abstract
There is no known treatment for fatty liver, a ubiquitous cause of chronic liver disease. However, because it is associated with hyperinsulinemia and insulin-resistance, insulin-sensitizing agents might be beneficial. To evaluate this possibility, insulin-resistant ob/ob mice with fatty livers were treated with metformin, an agent that improves hepatic insulin-resistance. Metformin improved fatty liver disease, reversing hepatomegaly, steatosis and aminotransferase abnormalities. The therapeutic mechanism likely involves inhibited hepatic expression of tumor necrosis factor (TNF) α and TNF-inducible factors that promote hepatic lipid accumulation and ATP depletion. These findings suggest a mechanism of action for metformin and identify novel therapeutic targets in insulin-resistant states.
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References
el-Hassan, A.Y., Ibrahim, E.M., al-Mulhim, F.A., Nabhan, A.A. & Chammas, M.Y. Fatty infiltration of the liver: analysis of prevalence, radiological and clinical findings. Br. J. Radiol. 65, 774–778 (1992).
Bellentani, S. et al. Prevalence of chronic liver disease in the general population of Northern Italy: The Dionysis study. Hepatology 20, 1442–1449 (1994).
Marchesini, G. et al. Association of nonalcoholic fatty liver disease with insulin resistance. Am. J. Med. 107, 450–455 (1999).
Sheth, S.G., Gordon, F.D. & Chopar, S. Nonalcoholic steatohepatitis. Ann. Intern. Med. 126, 137–145 (1997).
Matteoni, C., Younossi, Z.M. & McCullough, A. Nonalcoholic fatty liver disease: a spectrum of clinical pathological severity. Gastroenterology 116, 1413–1419 (1999).
Marceau, P. et al. Liver pathology and metabolic syndrome X in severe obesity. J Clin. Endocrinol. Metab. 84, 1513–1517 (1999).
Yang, S.Q., Lin, H.Z., Lane, M.D., Clemens, M. & Diehl, A.M. Obesity increases sensitivity of endotoxin liver injury: implications for pathogenesis of steatohepatitis. Proc. Natl. Acad. Sci. USA 94, 2557–2562 (1997).
Kushi, A. et al. Obesity and mild hyperinsulinemia found in neuropeptide Y-U1 receptor deficient mice. Proc. Natl. Acad. Sci USA 95, 15659–15664 (1998).
Shimomura, I. et al. Insulin resistance and diabetes mellitus in transgenic mice expressing nuclear SREBP-1c in adipose tissue: model for congenital generalized lipodystrophy. Genes Dev. 12, 3182–3194 (1998).
DeFronzo, R.A., Barzilai, N. & Simonson, D.C. Mechanism of metformin action in obese and lean non-insulin dependent diabetics subjects. J. Clin. Endocrinol. Metab. 73, 1294–1301 (1991).
Stumvoll, M., Nurjhan, N., Perriello, G., Dailey, G. & Gerich, J.E. Metabolic effects of metformin in non-insulin-dependent diabetes mellitus. N. Engl. J. Med. 333, 550–554 (1995).
Cusi, K., Consoli, A. & DeFronzo, R.A. Metabolic effects of metformin on glucose and lactate metabolism in noninsulin-dependent diabetes mellitus. J. Clin. Endocrinol. Metab. 81, 4059–4067 (1996).
Wiernsperger, N.F. & Bailey, C.J. The anti-hyperglycemic effect of metformin. Drugs 58, 31–39 (1999).
Meglasson, M.D. et al. Anti hyperglycemic actions of guanidenoalkanoic acids: 3- guanidinopropionic acid ameliorates hyperglycemia in diabetic KKAy and C57BL-6J ob/ob mice and increases glucose disappearance in rhesus monkeys. J. Pharmacol. Exp. Ther. 266, 1454–1462 (1993).
Uysal, K.T., Wiesbrock, S.M., Marino, M.W. & Hotamisligil, G.S. Protection from obesity-induced insulin-resistance in mice lacking TNFα function. Nature 389, 610–614 (1997).
Campfield, L.A., Smith, F.J. & Burn, P. The OB protein (leptin) pathway — a link between adipose tissue mass and central neural networks. Horm. Metab. Res. 28, 619–632 (1996).
Rouru, J., Pesonen, V. & Koulu, M. Subchronic treatment with metformin produces anorectic effect and reduces hyperinsulinemia in genetically obese Zucker rats. Life Sci. 50, 1813–1820 (1992).
Paolisso, G. et al. Effect of metformin on food intake in obese subjects. Eur. J. Clin. Invest. 28, 441–446 (1998).
Shulman, G.I. Cellular mechanisms of insulin resistance in humans. Am. J. Cardiol. 84, 3J– 10J (1999).
Holleneck, C.B., Johnston, P., Varasteh, B.B., Chen, Y.D. & Reaven, G.M. Effects of metformin on glucose, insulin and lipid metabolism in patients with mild hypertriglyceridemia and non-insulin dependent diabetes by glucose tolerance test criteria. Diabete Metab. 17, 483–489 (1991).
Huupponen, R., Pyykko, K., Koulu, M. & Rouru, J. Metformin and liver glycogen synthase activity in obese Zucker rats. Res. Commun. Chem. Pathol. Pharmacol. 79, 219–227 (1993).
Ricquier, D. Neonatal brown adipose tissue, UCP-1 and the novel uncoupling proteins. Biochem. Soc. Trans. 26, 120–123 (1998).
Solomon, S.S., Mishra, S.K., Cwik, C., Rajanna, B. & Postlethwaite, A.E. Pioglitazone and metformin reverse insulin resistance induced by tumor necrosis factor-alpha in liver cells. Horm. Metab. Res. 29, 379–382 (1997).
Cortez-Pinto, H. et al. Bacterial lipopolysaccharide induces uncoupling protein-2 in hepatocytes via a tumor necrosis factor alpha-dependent mechanism. Biochem. Biophys. Res. Commun. 251, 313–319 (1998).
Lawler, J.F., Yin, M., Diehl, A.M., Roberts, E. & Chatterjee, S. Tumor necrosis factor- alpha stimulates the maturation of sterol regulatory element binding protein-1 through the actions of neutral sphingomyleinase. J. Biol. Chem. 273, 5053–5059 (1998).
Chavin, K. et al. Obesity induces expression of uncoupling protein-2 in hepatocytes and promotes liver ATP depletion. J. Biol. Chem. 274, 5692–5700 (1999).
Zaibi, M.D. et al. Metformin induces an agonist-specific increase in albumin production by primary cultured rat hepatocytes. Biochem. Pharmacol. 50, 775–780 (1995).
Shimomura, I., Bashmakow, Y. & Horton, J.D. Increased nuclear levels of SREBP-1c associated with fatty livers in two mouse models of diabetes mellitus. J. Biol. Chem. 274, 30028–30032 (1999).
Perriello, G. et al. Acute anti hyperglycemic actions of metformin in NIDDM. Evidence for suppression of lipid oxidation and hepatic glucose production. Diabetes 43, 920–928 (1994).
Purrello, F. et al. Metformin enhances certain insulin actions in cultured rat hepatoma cells. Diabetologia 31, 385–389 (1988).
Melin, B. et al. Dual effect of metformin in cultured rat hepatocytes: potentiation of insulin action and prevention of insulin-induced resistance. Metabolism 39, 1089–1095 (1990).
Hotamisligil, G.S. et al. IRS-1 mediated inhibition of insulin receptor tyrosine kinase activity in TNF-alpha- and obesity-induced insulin resistance. Science 271, 665–668 (1996).
McClain, C.J., Hill, D.B., Schmidt, J. & Diehl, A.M. Cytokines and alcoholic liver disease. Semin. Liv. Dis. 13, 170–182 (1993).
Yin, M. et al. Essential role of tumor necrosis factor-alpha in alcohol-induced liver injury in mice. Gastroenterology 117, 942–952 (1999).
Shimomura, E., Bashmakov, Y. & Horton, J.D. Leptin reverses insulin resistance and diabetes mellitus in mice with congenital lipodystrophy. J. Biol. Chem. 274, 30028–30032 (1999).
Cortez-Pinto, H., Lin, H.Z., Yang, S.Q., Odwin da Costa, S. & Diehl, A.M. Lipids up- regulate uncoupling protein-2 expression in rat hepatocytes. Gastroenterology 116, 1184–1193 (1999).
Ni, N. & Yager, J. Co-mitogenic effects of estrogens on DNA synthesis induced by various growth factors in cultured female hepatocytes. Hepatology 19, 182–190 (1994).
Diehl, A.M. et al. Tumor necrosis factor induces c-jun during the regenerative response to liver injury. Am. J. Physiol. 267, G552–G561 (1994).
Pizer, E.S. et al. Malonyl-coenzyme A is a potential mediator of cytotoxicity induced by fatty acid synthase inhibition in human breast cancer cells and xenografts. Cancer Res. 60, 213–218 (2000).
Chomczynski, P., Sacchi, N. Single step method of RNA isolation by acid guanidine thiocyanate-phenol-chloroform extraction. Anal. Biochem. 162, 156–161 (1987).
Yang, S.Q. et al. Mitochondrial adaptations to oxidative stress in obesity-related fatty livers. Arch. Biochem. Biophys. 378, 259–268 (2000).
Lavery, D.J. & Schibler, U. Circadian transcription of the 7 alpha hydroxylase gene may involve the liver-enriched bZIP protein DBP. Genes Dev. 7, 1871–1884 (1993).
Dawson, P.A. et al. Sterol-dependent repression of low density lipoprotein receptor promoter mediated by 16-base pair sequence adjacent to binding site for transcription factor SP1. J. Biol. Chem. 263, 3372–3379 (1988).
Alo, P.L. Expression of fatty acid synthase (FAS) as a predictor of recurrence in stage I breast carcinoma patients. Cancer 77, 474–482 (1996).
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Lin, H., Yang, S., Chuckaree, C. et al. Metformin reverses fatty liver disease in obese, leptin-deficient mice. Nat Med 6, 998–1003 (2000). https://doi.org/10.1038/79697
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DOI: https://doi.org/10.1038/79697
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