4.7 Article

COL6A3-derived endotrophin links reciprocal interactions among hepatic cells in the pathology of chronic liver disease

期刊

JOURNAL OF PATHOLOGY
卷 247, 期 1, 页码 99-109

出版社

WILEY
DOI: 10.1002/path.5172

关键词

endotrophin; collagen VI A3; pathology; chronic liver disease; JNK pathway; apoptosis; inflammation; fibrosis

资金

  1. Korea Health Technology R&D Project through the Korea Health Industry Development Institute (KHIDI) [HI14C1277]
  2. Comprehensive and Integrative Medicine R&D project through Comprehensive and Integrative Medicine Institute (CIMI) - Ministry of Health Welfare [NRF-2017M3A9C4065956, 090-091-3000-3038-301-320-01]
  3. Bio-Synergy Research Project of the Ministry of Science, ICT and Future Planning [NRF-2017M3A9C4065956]
  4. Basic Science Research Program through the National Research Foundation [NRF-2018R1A2B6003878]
  5. UNIST [1.170078.01, 1.180018.01]
  6. Ministry of Education, Science and Technology [NRF-2017R1C1B1008424, NRF-2018R1A5A1024340]

向作者/读者索取更多资源

Extracellular matrix dysregulation is associated with chronic liver disease. CollagenVI-alpha3 chain (COL6A3) is a biomarker for hepatic fibrosis and poor prognosis of hepatocellular carcinoma (HCC), but its function in liver pathology remains unknown. High levels of COL6A3 and its cleaved product, endotrophin (ETP) in tumor-neighboring regions are strongly associated with poor prognosis in HCC patients. Here, we report that the high levels of ETP in injured hepatocytes induce JNK-dependent hepatocyte apoptosis and activate nonparenchymal cells to lead further activation of hepatic inflammation, fibrosis, and apoptosis. Nevertheless ETP per se showed limited phenotypic changes in normal liver tissues. Furthermore, inhibition of ETP activity by utilizing neutralizing antibodies efficiently suppressed the pathological consequences in chronic liver diseases. Our results implicate ETP mechanistically as a crucial mediator in reciprocal interactions among various hepatic cell populations in the pathogenesis of chronic liver disease, and it could be a promising therapeutic target particularly in individuals with high local levels of COL6A3. Copyright (c) 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.

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