Abstract
Background: Identification of factors to detect and improve chemotherapy-response in cancer is the main concern. microRNA-372-3p (miR-372-3p) has been demonstrated to play a crucial role in cellular proliferation, apoptosis and metastasis of various cancers including Hepatocellular Carcinoma (HCC). However, its contribution towards Doxorubicin (Dox) chemosensitivity in HCC has never been studied.
Objective: This study aims to investigate the potential role of miR-372-3p in enhancing Dox effects on HCC cell line (HepG2). Additionally, the correlation between miR-372-3p and HCC patients who received Transarterial Chemoembolization (TACE) with Dox treatment has been analyzed.
Methods: Different cell processes were elucidated by cell viability, colony formation, apoptosis and wound healing assays after miR-372-3p transfection in HepG2 cells Furthermore, the miR-372-3p level has been estimated in the blood of primary HCC patients treated with TACE/Dox by quantitative real-time PCR assay. Receiver Operating Curve (ROC) analysis for serum miR-372-3p was constructed for its prognostic significance. Finally, the protein level of Mcl-1, the anti-apoptotic player, has been evaluated using western blot.
Results: We found a significantly higher level of miR-372-3p in the blood of the responder group of HCC patients who received TACE with Dox than of non-responders. Ectopic expression of miR-372-3p reduced cell proliferation, migration and significantly induced apoptosis in HepG2 cells which was coupled with a decrease of anti-apoptotic protein Mcl-1.
Conclusion: Our study demonstrated that miR-372-3p acts as a tumor suppressor in HCC and can act as a predictor biomarker for drug response. Furthermore, the data referred for the first time its potential role in drug sensitivity that might be a therapeutic target for HCC.
Keywords: MicroRNA-372-3p, doxorubicin, chemosensitivity, TACE, Mcl-1, hepatocellular carcinoma.
Graphical Abstract
[http://dx.doi.org/10.1053/j.seminoncol.2012.05.011] [PMID: 22846863]
[http://dx.doi.org/10.1016/j.jhep.2013.07.009] [PMID: 23867314]
[http://dx.doi.org/10.1016/j.jhep.2006.10.020] [PMID: 17239480]
[http://dx.doi.org/10.1053/j.seminoncol.2012.05.004] [PMID: 22846867]
[http://dx.doi.org/10.1159/000343867] [PMID: 24945002]
[http://dx.doi.org/10.1097/FPC.0b013e32833ffb56] [PMID: 21048526]
[http://dx.doi.org/10.2217/hep.15.41] [PMID: 26998221]
[http://dx.doi.org/10.1016/j.jhep.2004.12.035] [PMID: 15826724]
[http://dx.doi.org/10.1016/j.ejps.2018.10.014] [PMID: 30343151]
[http://dx.doi.org/10.1016/S0092-8674(04)00045-5] [PMID: 14744438]
[http://dx.doi.org/10.1158/0008-5472.CAN-06-0800] [PMID: 16885332]
[http://dx.doi.org/10.1261/rna.068692.118] [PMID: 30333195]
[http://dx.doi.org/10.1186/s13046-016-0320-4] [PMID: 26964533]
[http://dx.doi.org/10.1016/j.molonc.2012.09.006] [PMID: 23102669]
[http://dx.doi.org/10.1053/j.gastro.2012.05.003]
[http://dx.doi.org/10.3390/ijms19113414] [PMID: 30384441]
[http://dx.doi.org/10.1038/s41598-018-27521-y] [PMID: 29907753]
[http://dx.doi.org/10.3346/jkms.2018.33.e6] [PMID: 29215815]
[http://dx.doi.org/10.1186/1471-2407-14-107] [PMID: 24552534]
[http://dx.doi.org/10.1002/jcb.24949] [PMID: 25160587]
[http://dx.doi.org/10.1111/cpr.12207] [PMID: 26332146]
[http://dx.doi.org/10.1007/s11010-012-1521-6] [PMID: 23291979]
[http://dx.doi.org/10.1006/meth.2001.1262] [PMID: 11846609]
[http://dx.doi.org/10.1007/978-1-61779-080-5_20]
[http://dx.doi.org/10.1142/9789813208575_0013]
[http://dx.doi.org/10.1038/sj.bjc.6606010] [PMID: 21102580]
[http://dx.doi.org/10.1007/s10059-009-0158-0] [PMID: 19937137]
[http://dx.doi.org/10.2174/1871520615666150716110406] [PMID: 26179262]
[http://dx.doi.org/10.1074/jbc.M111.221564] [PMID: 21646351]
[http://dx.doi.org/10.1186/s12885-015-1214-0] [PMID: 25880458]
[http://dx.doi.org/10.1093/nar/gkq285] [PMID: 20423907]
[http://dx.doi.org/10.1038/nrc864] [PMID: 12154352]
[http://dx.doi.org/10.1038/onc.2015.96] [PMID: 25867061]
[http://dx.doi.org/10.1038/sj.onc.1206949] [PMID: 14576853]
[http://dx.doi.org/10.3324/haematol.2018.202846] [PMID: 30630973]
[http://dx.doi.org/10.3892/ijo.2014.2523] [PMID: 24970653]
[http://dx.doi.org/10.1158/0008-5472.CAN-07-2938] [PMID: 18483246]
[http://dx.doi.org/10.1016/j.trecan.2017.04.008] [PMID: 28670628]
[http://dx.doi.org/10.1111/j.1349-7006.2010.01650.x] [PMID: 20624164]
[http://dx.doi.org/10.1586/erm.10.11] [PMID: 20370587]
[http://dx.doi.org/10.1002/pmic.201700060] [PMID: 28508578]
[http://dx.doi.org/10.2174/1389203719666180809113122] [PMID: 30091410]
[http://dx.doi.org/10.1016/j.cub.2019.05.004] [PMID: 31211982]
[http://dx.doi.org/10.1111/jnc.14838] [PMID: 31357232]
[http://dx.doi.org/10.1002/bies.201800167] [PMID: 31549739]
[http://dx.doi.org/10.1016/S1734-1140(11)70498-4] [PMID: 21602587]
[http://dx.doi.org/10.1158/0008-5472.CAN-09-1063] [PMID: 19679545]
[http://dx.doi.org/10.1016/j.cellsig.2015.04.009] [PMID: 25917317]
[http://dx.doi.org/10.1038/s41580-018-0089-8] [PMID: 30655609]
[http://dx.doi.org/10.1016/j.clim.2017.07.015] [PMID: 28736279]