PMID- 25976932 OWN - NLM STAT- MEDLINE DCOM- 20160711 LR - 20171116 IS - 1478-3231 (Electronic) IS - 1478-3223 (Linking) VI - 35 IP - 10 DP - 2015 Oct TI - Small heterodimer partner attenuates profibrogenic features of hepatitis C virus-infected cells. PG - 2233-45 LID - 10.1111/liv.12871 [doi] AB - BACKGROUND & AIMS: An atypical orphan nuclear receptor small heterodimer partner (SHP) is known to be regulated by AMP-activated protein kinase (AMPK). Both of them inhibit TGF-beta and Smad signalling and exhibit antifibrotic activity in the liver. However, little is known about the protective effects of SHP and AMPK against hepatitis c virus (HCV)-induced hepatic fibrosis. METHODS: Levels of SHP, p-AMPK and fibrotic markers in HCV-infected human liver and in Huh-7.5 cells infected with HCV genotype 2a (JFH-1) were investigated. The effect of adenovirus-mediated overexpression of SHP (Ad-SHP) and AMPK activation via metformin and 5-amino-1-b-D-ribofuranosyl-imidazole-4-carboxamide (AICAR) on fibrotic gene expression was evaluated in HCV-infected cells. Finally, we examined the effect of Ad-SHP and AMPK activators on invasion and activation of LX2 human HSCs induced by conditioned media from HCV-infected hepatocyte (CM). RESULTS: In HCV-infected human livers and Huh-7.5 cells infected with HCV, SHP mRNA and protein levels were diminished compared with controls, whereas profibrotic factors were increased. Pharmacological AMPK activation recovered SHP expression, and Ad-SHP inhibited HCV-induced fibrotic gene expression. This finding was accompanied by inhibition of HCV-stimulated nuclear factor-kappa B, an inducer of TGF-beta. Moreover, CytoSelect invasion assay revealed that enhanced activity and invasiveness of hepatic stellate cells induced by CM. CONCLUSION: These results demonstrate that overexpression of SHP and activation of AMPK reverses profibrogenic features of HCV-infected cells by decreasing TGF-beta and fibrotic gene expression. These findings provide a rationale for SHP as a possible therapeutic target against HCV-induced hepatic fibrosis. CI - (c) 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd. FAU - Jung, Gwon-Soo AU - Jung GS AD - Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, Korea. FAU - Jeon, Jae-Han AU - Jeon JH AD - Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, Korea. FAU - Choi, Yeon-Kyung AU - Choi YK AD - Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, Korea. FAU - Jang, Se Young AU - Jang SY AD - Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, Korea. FAU - Park, Soo Young AU - Park SY AD - Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, Korea. FAU - Kim, Mi-Kyung AU - Kim MK AD - Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea. FAU - Shin, Eui-Cheol AU - Shin EC AD - Laboratory of Immunology and Infectious Diseases, Graduate School of Medical Science and Engineering, KAIST, Daejeon, Korea. FAU - Jeong, Won-Il AU - Jeong WI AD - Laboratory of Liver Research, Graduate School of Medical Science and Engineering, KAIST, Daejeon, Korea. FAU - Lee, In-Kyu AU - Lee IK AD - Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, Korea. FAU - Kang, Yu Na AU - Kang YN AD - Department of Pathology, Keimyung University School of Medicine, Daegu, Korea. FAU - Park, Keun-Gyu AU - Park KG AD - Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, Korea. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150603 PL - United States TA - Liver Int JT - Liver international : official journal of the International Association for the Study of the Liver JID - 101160857 RN - 0 (Receptors, Cytoplasmic and Nuclear) RN - 0 (Ribonucleotides) RN - 0 (Transforming Growth Factor beta) RN - 0 (nuclear receptor subfamily 0, group B, member 2) RN - 360-97-4 (Aminoimidazole Carboxamide) RN - 9100L32L2N (Metformin) RN - EC 2.7.11.31 (AMP-Activated Protein Kinases) RN - F0X88YW0YK (AICA ribonucleotide) SB - IM CIN - Liver Int. 2015 Oct;35(10):2218-21. PMID: 26037155 MH - AMP-Activated Protein Kinases/*metabolism MH - Aminoimidazole Carboxamide/analogs & derivatives/pharmacology MH - Cell Line, Tumor MH - Gluconeogenesis/drug effects MH - Hepacivirus MH - Hepatic Stellate Cells/metabolism MH - Humans MH - Liver Cirrhosis/*drug therapy MH - Metformin/pharmacology MH - Receptors, Cytoplasmic and Nuclear/genetics/*pharmacology MH - Ribonucleotides/pharmacology MH - Signal Transduction/drug effects MH - Transforming Growth Factor beta/*metabolism OTO - NOTNLM OT - AMP-activated protein kinase OT - hepatitis C virus OT - liver fibrosis OT - small heterodimer partner EDAT- 2015/05/16 06:00 MHDA- 2016/07/12 06:00 CRDT- 2015/05/16 06:00 PHST- 2015/01/14 00:00 [received] PHST- 2015/05/08 00:00 [accepted] PHST- 2015/05/16 06:00 [entrez] PHST- 2015/05/16 06:00 [pubmed] PHST- 2016/07/12 06:00 [medline] AID - 10.1111/liv.12871 [doi] PST - ppublish SO - Liver Int. 2015 Oct;35(10):2233-45. doi: 10.1111/liv.12871. Epub 2015 Jun 3.