PMID- 31931755 OWN - NLM STAT- MEDLINE DCOM- 20200908 LR - 20200908 IS - 1471-2407 (Electronic) IS - 1471-2407 (Linking) VI - 20 IP - 1 DP - 2020 Jan 13 TI - Oxaliplatin resistance is enhanced by saracatinib via upregulation Wnt-ABCG1 signaling in hepatocellular carcinoma. PG - 31 LID - 10.1186/s12885-019-6480-9 [doi] LID - 31 AB - BACKGROUND: Chemo-resistance in hepatocellular carcinoma (HCC) is a major problem, and acquired drug resistance prevents cancer therapies from achieving complete responses. Molecular targeting therapy presents an opportunity to impede tumor through combination or sequential therapy, while the accurate effect is vague. METHODS: The efficacy of combinations between oxaliplatin and anti-cancer molecular targeting drugs was screened. Strangely, the combined chemotherapy with oxaliplatin and saracatinib induced significantly antagonistic effects. Then the antitumor effects of combined treatment with saracatinib and oxaliplatin were confirmed in wide type HCC as well as in saracatinib- and oxaliplatin-resistant HCC. RNA sequencing was used to explore the resistance mechanism, and the roles of ATP-binding cassette transporter G1 (ABCG1) and Wnt signaling in oxaliplatin resistance were confirmed. RESULTS: Chemotherapy with oxaliplatin and saracatinib individually induced strong anti-HCC effects, while combined or sequential treatment of HCC cells with these two drugs exhibited reduced efficacy compared to treatment with the single drugs. And it was saracatinib treatment caused oxaliplatin resistance. RNA sequencing revealed 458 genes that were altered by treatment with saracatinib and oxaliplatin. Of these, the gene encoding ABCG1 and Wnt-associated genes were significantly upregulated. Upregulation of ABCG1 and oxaliplatin resistance were associated with activation of Wnt signaling. Interference with ABCG1 expression or inhibition of Wnt signaling resulted in reversal of the saracatinib-induced oxaliplatin resistance in HCC. CONCLUSIONS: These studies demonstrated that combined or sequential chemotherapy with oxaliplatin and saracatinib reduced antitumor efficacy, and this antagonism was attributed to the activation of Wnt signaling and upregulation of ABCG1 by saracatinib. FAU - Liao, Xia AU - Liao X AD - Department of Nutrition, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China. FAU - Song, Ge AU - Song G AD - Department of Nutrition, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China. FAU - Xu, Zihan AU - Xu Z AD - Department of Burns and Plastic Surgery, Shaanxi Provincial People's Hospital, Xi'an, 710068, China. FAU - Bu, Yang AU - Bu Y AD - Department of Hepatobiliary Surgery, General Hospital, Ningxia Medical University, Yinchuan, 750001, China. FAU - Chang, Fan AU - Chang F AD - Metabolite Research Center, Shaanxi Institute of Microbiology, Xi'an, 710043, China. FAU - Jia, Fengan AU - Jia F AD - Metabolite Research Center, Shaanxi Institute of Microbiology, Xi'an, 710043, China. FAU - Xiao, Xuelian AU - Xiao X AD - Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, 710061, China. FAU - Ren, Xuejiao AU - Ren X AD - Medical College of Yan'an University, Yan'an, 716000, China. FAU - Zhang, Mei AU - Zhang M AD - Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, 710061, China. FAU - Jia, Qingan AU - Jia Q AUID- ORCID: 0000-0002-3256-7197 AD - Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, 710061, China. qajia66@163.com. LA - eng GR - 81502694/National Natural Science Foundation of China/ GR - 1191329835/Fundamental Research Funds for the Central Universities/ GR - 2015M570330/Postdoctoral Science Foundation of China/ GR - NZ15130/Key projects of Ningxia Natural Science Foundation/ PT - Journal Article DEP - 20200113 PL - England TA - BMC Cancer JT - BMC cancer JID - 100967800 RN - 0 (ABCG1 protein, human) RN - 0 (ATP Binding Cassette Transporter, Subfamily G, Member 1) RN - 0 (Benzodioxoles) RN - 0 (Quinazolines) RN - 0 (Wnt Proteins) RN - 04ZR38536J (Oxaliplatin) RN - 9KD24QGH76 (saracatinib) SB - IM MH - ATP Binding Cassette Transporter, Subfamily G, Member 1/genetics/*metabolism MH - Animals MH - Benzodioxoles/*pharmacology MH - Carcinoma, Hepatocellular/drug therapy/genetics/*metabolism/pathology MH - Cell Line, Tumor MH - Computational Biology/methods MH - Disease Models, Animal MH - Drug Antagonism MH - *Drug Resistance, Neoplasm MH - Gene Expression Profiling MH - Gene Expression Regulation/drug effects MH - Humans MH - Liver Neoplasms/drug therapy/*metabolism/pathology MH - Mice MH - Oxaliplatin/*pharmacology MH - Quinazolines/*pharmacology MH - Signal Transduction/*drug effects MH - Wnt Proteins/*metabolism MH - Xenograft Model Antitumor Assays PMC - PMC6958774 OTO - NOTNLM OT - ABCG1 OT - Hepatocellular carcinoma OT - Oxaliplatin resistance OT - Saracatinib OT - Wnt signaling COIS- The authors declare that they have no competing interests. EDAT- 2020/01/15 06:00 MHDA- 2020/09/09 06:00 PMCR- 2020/01/13 CRDT- 2020/01/15 06:00 PHST- 2019/05/30 00:00 [received] PHST- 2019/12/18 00:00 [accepted] PHST- 2020/01/15 06:00 [entrez] PHST- 2020/01/15 06:00 [pubmed] PHST- 2020/09/09 06:00 [medline] PHST- 2020/01/13 00:00 [pmc-release] AID - 10.1186/s12885-019-6480-9 [pii] AID - 6480 [pii] AID - 10.1186/s12885-019-6480-9 [doi] PST - epublish SO - BMC Cancer. 2020 Jan 13;20(1):31. doi: 10.1186/s12885-019-6480-9.