PMID- 22797301 OWN - NLM STAT- MEDLINE DCOM- 20121025 LR - 20240507 IS - 1558-8238 (Electronic) IS - 0021-9738 (Print) IS - 0021-9738 (Linking) VI - 122 IP - 8 DP - 2012 Aug TI - Cholangiocarcinomas can originate from hepatocytes in mice. PG - 2911-5 LID - 63212 [pii] LID - 10.1172/JCI63212 [doi] AB - Intrahepatic cholangiocarcinomas (ICCs) are primary liver tumors with a poor prognosis. The development of effective therapies has been hampered by a limited understanding of the biology of ICCs. Although ICCs exhibit heterogeneity in location, histology, and marker expression, they are currently thought to derive invariably from the cells lining the bile ducts, biliary epithelial cells (BECs), or liver progenitor cells (LPCs). Despite lack of experimental evidence establishing BECs or LPCs as the origin of ICCs, other liver cell types have not been considered. Here we show that ICCs can originate from fully differentiated hepatocytes. Using a mouse model of hepatocyte fate tracing, we found that activated NOTCH and AKT signaling cooperate to convert normal hepatocytes into biliary cells that act as precursors of rapidly progressing, lethal ICCs. Our findings suggest a previously overlooked mechanism of human ICC formation that may be targetable for anti-ICC therapy. FAU - Fan, Biao AU - Fan B AD - Department of Bioengineering and Therapeutic Sciences, UCSF, San Francisco, CA, USA. FAU - Malato, Yann AU - Malato Y FAU - Calvisi, Diego F AU - Calvisi DF FAU - Naqvi, Syed AU - Naqvi S FAU - Razumilava, Nataliya AU - Razumilava N FAU - Ribback, Silvia AU - Ribback S FAU - Gores, Gregory J AU - Gores GJ FAU - Dombrowski, Frank AU - Dombrowski F FAU - Evert, Matthias AU - Evert M FAU - Chen, Xin AU - Chen X FAU - Willenbring, Holger AU - Willenbring H LA - eng GR - P30 DK026743/DK/NIDDK NIH HHS/United States GR - R01 CA136606/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20120717 PL - United States TA - J Clin Invest JT - The Journal of clinical investigation JID - 7802877 RN - 0 (DNA Primers) RN - 0 (Notch1 protein, mouse) RN - 0 (Receptor, Notch1) RN - 0 (Receptors, Notch) RN - 0 (Recombinant Proteins) RN - EC 2.7.11.1 (Proto-Oncogene Proteins c-akt) SB - IM CIN - Hepatology. 2013 Apr;57(4):1668-71. PMID: 23390051 MH - Animals MH - Base Sequence MH - Bile Duct Neoplasms/metabolism/*pathology MH - Bile Ducts, Intrahepatic/metabolism/*pathology MH - Cell Differentiation MH - Cell Lineage MH - Cholangiocarcinoma/*etiology/metabolism/*pathology MH - DNA Primers/genetics MH - Hepatocytes/metabolism/*pathology MH - Humans MH - Liver Neoplasms/*etiology/metabolism/*pathology MH - Liver Neoplasms, Experimental/etiology/metabolism/pathology MH - Mice MH - Mice, Transgenic MH - Neoplastic Stem Cells/metabolism/pathology MH - Proto-Oncogene Proteins c-akt/metabolism MH - Receptor, Notch1/genetics/metabolism MH - Receptors, Notch/metabolism MH - Recombinant Proteins/genetics/metabolism MH - Signal Transduction PMC - PMC3408746 EDAT- 2012/07/17 06:00 MHDA- 2012/10/26 06:00 PMCR- 2012/07/17 CRDT- 2012/07/17 06:00 PHST- 2012/02/03 00:00 [received] PHST- 2012/06/01 00:00 [accepted] PHST- 2012/07/17 06:00 [entrez] PHST- 2012/07/17 06:00 [pubmed] PHST- 2012/10/26 06:00 [medline] PHST- 2012/07/17 00:00 [pmc-release] AID - 63212 [pii] AID - 10.1172/JCI63212 [doi] PST - ppublish SO - J Clin Invest. 2012 Aug;122(8):2911-5. doi: 10.1172/JCI63212. Epub 2012 Jul 17.