Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jhep.2011.07.025
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dc.titleInducible and repressable oncogene-addicted hepatocellular carcinoma in Tet-on xmrk transgenic zebrafish
dc.contributor.authorLi, Z.
dc.contributor.authorHuang, X.
dc.contributor.authorZhan, H.
dc.contributor.authorZeng, Z.
dc.contributor.authorLi, C.
dc.contributor.authorSpitsbergen, J.M.
dc.contributor.authorMeierjohann, S.
dc.contributor.authorSchartl, M.
dc.contributor.authorGong, Z.
dc.date.accessioned2014-10-27T08:31:29Z
dc.date.available2014-10-27T08:31:29Z
dc.date.issued2012-02
dc.identifier.citationLi, Z., Huang, X., Zhan, H., Zeng, Z., Li, C., Spitsbergen, J.M., Meierjohann, S., Schartl, M., Gong, Z. (2012-02). Inducible and repressable oncogene-addicted hepatocellular carcinoma in Tet-on xmrk transgenic zebrafish. Journal of Hepatology 56 (2) : 419-425. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jhep.2011.07.025
dc.identifier.issn01688278
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/100917
dc.description.abstractBackground & Aims: Liver cancer, mainly hepatocellular carcinoma, is a major malignancy and currently there are no effective treatment protocols due to insufficient understanding of hepatocarcinogenesis. As a potentially high-throughput and cost-effective experimental model, the zebrafish is increasingly recognized for disease studies. Here, we aim at using the zebrafish to generate a convenient hepatocellular carcinoma model. Methods: Using the Tet-on system for liver-specific expression of fish oncogene xmrk, a hyperactive version of epidermal growth factor receptor homolog, we have generated transgenic zebrafish with inducible development of liver cancer. Results: Liver tumors were rapidly induced with 100% penetrance in both juvenile and adult xmrk transgenic fish. Histological examination indicated that they all showed features of hepatocellular carcinoma. The induced liver tumors regressed rapidly upon inducer withdrawal. During the tumor induction stage, we detected increased cell proliferation and activation of Xmrk downstream targets Erk and Stat5, which were important for liver tumorigenesis as proved by inhibition experiments. When tumors regressed, there were decreased phosphorylated Erk and Stat5 accompanied with an increase in apoptosis. Conclusions: Our zebrafish model demonstrates the potential of a hyperactivated epidermal growth factor receptor pathway in initiating heptocarcinogenesis. It provides clear evidence for the requirement of only a single oncogene for HCC initiation and maintenance and is thus a convenient model for further investigation of oncogene addiction and future anti-cancer drug screening. © 2011 Published by Elsevier B.V. on behalf of the European Association for the Study of the Liver.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.jhep.2011.07.025
dc.sourceScopus
dc.subjectCancer
dc.subjectEGFR
dc.subjectLiver
dc.subjectTumor regression
dc.typeArticle
dc.contributor.departmentBIOLOGICAL SCIENCES
dc.description.doi10.1016/j.jhep.2011.07.025
dc.description.sourcetitleJournal of Hepatology
dc.description.volume56
dc.description.issue2
dc.description.page419-425
dc.description.codenJOHEE
dc.identifier.isiut000300140500020
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