2012, Number 3
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Gac Med Mex 2012; 148 (3)
High cholesterol diet modifies the repairing effect of the hepatocyte growth factor
Gutiérrez RMC, Domínguez PM, Rodríguez GS, Nuño LN, Licona RC, Gómez-Quiroz LE
Language: Spanish
References: 19
Page: 236-242
PDF size: 578.56 Kb.
ABSTRACT
Currently, fatty liver represents a serious public health problem in the Western world. In our country, a large amount of food rich in cholesterol is consumed. Cholesterol is an important component in lipid rafts, where many receptors for growth factors are localized, so its functionality could be altered in the presence of high cholesterol concentration. Hepatocyte growth factor (HGF) and its receptor c-Met are known to promote repair after an injury. The aim in the present work was to study the effect of a high cholesterol diet in the molecular repair process mediated by HGF in hepatocytes and liver tissue. Data show a delay in the activation of the HGF-mediated signaling cascade which results in a deficient repair process, that in the case of a continuous aggression could favor the progression of liver damage.
REFERENCES
Ashburn DD, Reed MJ. Gastrointestinal system and obesity. Crit Care Clin. 2010;26:625-7.
Eckel RH, Grundy SM, Zimmet PZ. The metabolic syndrome. Lancet. 2005;365:1415-28.
Ratziu V, Bonyhay L, Di Martino V, et al. Survival, liver failure, and hepatocellular carcinoma in obesity-related cryptogenic cirrhosis. Hepatology. 2002;35:1485-93.
Park EJ, Lee JH, Yu GY, et al. Dietary and genetic obesity promote liver inflammation and tumorigenesis by enhancing IL-6 and TNF expression. Cell. 2010;140:197-208.
Siegel AB, Zhu AX. Metabolic syndrome and hepatocellular carcinoma: two growing epidemics with a potential link. Cancer. 2009;115:5651-61.
García-Ruiz C, Mari M, Colell A, et al. Mitochondrial cholesterol in health and disease. Histol Histopathol. 2009;24:117-32.
Montero J, Morales A, Llacuna L, et al. Mitochondrial cholesterol contributes to chemotherapy resistance in hepatocellular carcinoma. Cancer Res. 2008;68:5246-56.
Seveau S, Bierne H, Giroux S, Prevost MC, Cossart P. Role of lipid rafts in E-cadherin- and HGF-R/Met-mediated entry of Listeria monocytogenes into host cells. J Cell Biol. 2004;166:743-53.
Mari M, Caballero F, Colell A, et al. Mitochondrial free cholesterol loading sensitizes to TNF- and Fas-mediated steatohepatitis. Cell Metab. 2006;4:185-98.
Bertotti A, Comoglio PM. Tyrosine kinase signal specificity: lessons from the HGF receptor. Trends Biochem Sci. 2003;28:527-33.
Gómez-Quiroz LE, Factor VM, Kaposi-Novak P, Coulouarn C, Conner EA, Thorgeirsson SS. Hepatocyte-specific c-Met deletion disrupts redox homeostasis and sensitizes to Fas-mediated apoptosis. J Biol Chem. 2008;283:14581-9.
Kaposi-Novak P, Lee JS, Gómez-Quiroz L, Coulouarn C, Factor VM, Thorgeirsson SS. Met-regulated expression signature defines a subset of human hepatocellular carcinomas with poor prognosis and aggressive phenotype. J Clin Invest. 2006;116:1582-95.
Takami T, Kaposi-Novak P, Uchida K, et al. Loss of hepatocyte growth factor/c-Met signaling pathway accelerates early stages of N-nitrosodiethylamine induced hepatocarcinogenesis. Cancer Res. 2007;67:9844-51.
Valdés-Arzate A, Luna A, Bucio L, et al. Hepatocyte growth factor protects hepatocytes against oxidative injury induced by ethanol metabolism. Free Radic Biol Med. 2009;47:424-30.
Furge KA, Zhang YW, Vande Woude GF. Met receptor tyrosine kinase: enhanced signaling through adapter proteins. Oncogene. 2000;19: 5582-9.
Nakamura T, Mizuno S. The discovery of hepatocyte growth factor (HGF) and its significance for cell biology, life sciences and clinical medicine. Proc Jpn Acad Ser B Phys Biol Sci. 2010;86:588-610.
Nakamura T, Nawa K, Ichihara A. Partial purification and characterization of hepatocyte growth factor from serum of hepatectomized rats. Biochem Biophys Res Commun. 1984;122:1450-9.
Dolganiuc A. Role of lipids in liver health and disease. World J Gastroenterol. 2011;17:2520-35.
Chan G, Kalaitzidis D, Neel BG. The tyrosine phosphatase Shp2 (PTPN11) in cancer. Cancer Metastasis Rev. 2008;27:179-92.