{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,27]],"date-time":"2026-10-27T16:20:42Z","timestamp":1793118042565,"version":"4.5.0"},"reference-count":26,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"1","license":[{"start":{"date-parts":[[2015,9,1]],"date-time":"2015-09-01T00:00:00Z","timestamp":1441065600000},"content-version":"tdm","delay-in-days":1704,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2011,1]]},"abstract":"<jats:sec>\n                    <jats:title\/>\n                    <jats:p>\n                      <jats:bold>Liver fibrosis is orchestrated by a complex network of signaling pathways regulating the deposition of extracellular matrix proteins during fibrogenesis. MicroRNAs (miRNAs) represent a family of small noncoding RNAs controlling translation and transcription of many genes. Recently, miRNAs have been suggested to crucially modulate cellular processes in the liver such as hepatocarcinogenesis. However, their role in liver fibrosis is not well understood. We systematically analyzed the regulation of miRNAs in a mouse model of carbon tetrachloride\u2013induced hepatic fibrogenesis (CCl4) by gene array analysis, which revealed a panel of miRNA that were specifically regulated in livers of mice undergoing hepatic fibrosis. Within those, all three members of the miR-29-family were significantly down-regulated in livers of CCl4-treated mice as well as in mice that underwent bile duct ligation. Specific regulation of miR-29 members in murine fibrosis models correlated with lower expression of miR-29 in livers from patients with advanced liver fibrosis. Moreover, patients with advanced liver cirrhosis showed significantly lower levels of miR-29a in their serum when compared with healthy controls or patients with early fibrosis. On a cellular level, down-regulation of miR-29 in murine hepatic stellate cells (HSCs) was mediated by transforming growth factor beta (TGF-\u03b2) as well as inflammatory signals, namely, lipopolysaccharide (LPS) and nuclear factor kappa B (NF-\u03baB). Furthermore, overexpression of miR-29b in murine HSC resulted in down-regulation of collagen expression.<\/jats:bold>\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>\n                      <jats:bold>Our data indicate that miR-29 mediates the regulation of liver fibrosis and is part of a signaling nexus involving TGF-\u03b2- and NF-\u03baB\u2013dependent down-regulation of miR-29 family members in HSC with subsequent up-regulation of extracellular matrix genes. Thus they may represent targets for novel therapeutic strategies against hepatic fibrogenesis and also might evolve as biomarkers in the diagnosis of liver fibrosis. (Hepatology 2011.)<\/jats:bold>\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/hep.23922","type":"journal-article","created":{"date-parts":[[2010,8,22]],"date-time":"2010-08-22T08:09:51Z","timestamp":1282464591000},"page":"209-218","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":707,"title":["Micro-RNA profiling reveals a role for miR-29 in human and murine liver 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