PMID- 30794695 OWN - NLM STAT- MEDLINE DCOM- 20191121 LR - 20211204 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 14 IP - 2 DP - 2019 TI - Targeting mTOR and Src restricts hepatocellular carcinoma growth in a novel murine liver cancer model. PG - e0212860 LID - 10.1371/journal.pone.0212860 [doi] LID - e0212860 AB - Liver cancer is a poor prognosis cancer with limited treatment options. To develop a new therapeutic approach, we derived HCC cells from a known model of murine hepatocellular carcinoma (HCC). We treated adiponectin (APN) knock-out mice with the carcinogen diethylnitrosamine, and the resulting tumors were 7-fold larger than wild-type controls. Tumors were disassociated from both genotypes and their growth characteristics evaluated. A52 cells from APN KO mice had the most robust growth in vitro and in vivo, and presented with pathology similar to the parental tumor. All primary tumors and cell lines exhibited activity of the mammalian target of Rapamycin (mTOR) and Src pathways. Subsequent combinatorial treatment, with the mTOR inhibitor Rapamycin and the Src inhibitor Dasatinib reduced A52 HCC growth 29-fold in vivo. Through protein and histological analyzes we observed activation of these pathways in human HCC, suggesting that targeting both mTOR and Src may be a novel approach for the treatment of HCC. FAU - Walker, Sarah AU - Walker S AD - Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, Westmead, Australia. AD - Gastroenterology and Hepatology Unit, The Canberra Hospital, Woden, Australia. FAU - Wankell, Miriam AU - Wankell M AD - Department of Molecular and Cell Biology, Centre for Molecular Therapeutics, James Cook University, Australian Institute of Tropical Health and Medicine, Townsville, Australia. FAU - Ho, Vikki AU - Ho V AD - Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, Westmead, Australia. FAU - White, Rose AU - White R AD - Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, Westmead, Australia. FAU - Deo, Nikita AU - Deo N AD - Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, Westmead, Australia. FAU - Devine, Carol AU - Devine C AD - Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, Westmead, Australia. FAU - Dewdney, Brittany AU - Dewdney B AD - Department of Molecular and Cell Biology, Centre for Molecular Therapeutics, James Cook University, Australian Institute of Tropical Health and Medicine, Townsville, Australia. FAU - Bhathal, Prithi AU - Bhathal P AD - University of Melbourne, Victoria, Australia. FAU - Govaere, Olivier AU - Govaere O AD - Translational Cell and Tissue Research, Department of Imaging and Pathology, KULeuven and University Hospitals Leuven, Leuven, Belgium. AD - Liver Research Group, Institute of Cellular Medicine, The Medical School, Newcastle University, Newcastle-upon-Tyne, United Kingdom. FAU - Roskams, Tania AU - Roskams T AD - Translational Cell and Tissue Research, Department of Imaging and Pathology, KULeuven and University Hospitals Leuven, Leuven, Belgium. FAU - Qiao, Liang AU - Qiao L AD - Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, Westmead, Australia. FAU - George, Jacob AU - George J AD - Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, Westmead, Australia. FAU - Hebbard, Lionel AU - Hebbard L AUID- ORCID: 0000-0002-7094-9065 AD - Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, Westmead, Australia. AD - Department of Molecular and Cell Biology, Centre for Molecular Therapeutics, James Cook University, Australian Institute of Tropical Health and Medicine, Townsville, Australia. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190222 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - EC 2.7.1.1 (mTOR protein, mouse) RN - EC 2.7.10.2 (Proto-Oncogene Proteins pp60(c-src)) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) RN - RBZ1571X5H (Dasatinib) RN - W36ZG6FT64 (Sirolimus) SB - IM MH - Animals MH - Carcinoma, Hepatocellular/*drug therapy/enzymology/pathology MH - Cell Line, Tumor MH - Dasatinib/*pharmacology MH - *Drug Delivery Systems MH - Humans MH - Liver Neoplasms, Experimental/*drug therapy/enzymology/pathology MH - Mice MH - Mice, Knockout MH - Proto-Oncogene Proteins pp60(c-src)/*antagonists & inhibitors/metabolism MH - Sirolimus/*pharmacology MH - TOR Serine-Threonine Kinases/*antagonists & inhibitors/metabolism PMC - PMC6386388 COIS- The authors have declared that no competing interests exist. EDAT- 2019/02/23 06:00 MHDA- 2019/11/22 06:00 PMCR- 2019/02/22 CRDT- 2019/02/23 06:00 PHST- 2018/12/10 00:00 [received] PHST- 2019/02/12 00:00 [accepted] PHST- 2019/02/23 06:00 [entrez] PHST- 2019/02/23 06:00 [pubmed] PHST- 2019/11/22 06:00 [medline] PHST- 2019/02/22 00:00 [pmc-release] AID - PONE-D-18-35322 [pii] AID - 10.1371/journal.pone.0212860 [doi] PST - epublish SO - PLoS One. 2019 Feb 22;14(2):e0212860. doi: 10.1371/journal.pone.0212860. eCollection 2019.