title: miR-101 Inhibiting Cell Proliferation, Migration and Invasion in Hepatocellular Carcinoma through Downregulating Girdin.
abstract: miR-101 is considered to play an important role in hepato-cellular carcinoma (HCC), but the underlying molecular mechanism remains to be elucidated. Here, we aimed to confirm whether Girdin is a target gene of miR-101 and determine the tumor suppressor of miR-101 through Girdin pathway. In our previous studies, we firstly found Girdin protein was overexpressed in HCC tissues, and it closely correlated to tumor size, T stage, TNM stage and Edmondson-Steiner stage of HCC patients. After specific small interfering RNA of Girdin was transfected into HepG2 and Huh7.5.1 cells, the proliferation and invasion ability of tumor cells were significantly inhibited. In this study, we further explored the detailed molecular mechanism of Girdin in HCC. Interestingly, we found that miR-101 significantly low-expressed in HCC tissues compared with that in matched normal tissues while Girdin had a relative higher expression, and miR-101 was inversely correlated with Girdin expression. In addition, after miR-101 transfection, the proliferation, migration and invasion abilities of HepG2 cells were weakened. Furthermore, we confirmed that Girdin is a direct target gene of miR-101. Finally we confirmed Talen-mediated Girdin knockout markedly suppressed cell proliferation, migration and invasion in HCC while down-regulation of miR-101 significantly restored the inhibitory effect. Our findings suggested that miR-101/Girdin axis could be a potential application of HCC treatment.
authors.affiliation: Department of Oncology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China.
authors.forename: Ke
authors.initials: K
authors.lastname: Cao
authors.affiliation: Department of Pathology, Xiangya Basic Medical College, Central South University, Changsha, Hunan, China.
authors.forename: Jingjing
authors.initials: J
authors.lastname: Li
authors.affiliation: Department of Oncology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: Department of Oncology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Wang
authors.affiliation: Department of Plastic Surgery, Third Xiangya Hospital, Central South University, Changsha, Hunan, China.
authors.forename: Qinghai
authors.initials: Q
authors.lastname: Zeng
authors.affiliation: Department of Oncology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China.
authors.forename: Siqi
authors.initials: S
authors.lastname: He
authors.affiliation: Department of Oncology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China.
authors.forename: Li
authors.initials: L
authors.lastname: Yu
authors.affiliation: Department of Plastic Surgery, Third Xiangya Hospital, Central South University, Changsha, Hunan, China.
authors.forename: Jianda
authors.initials: J
authors.lastname: Zhou
authors.affiliation: Department of Oncology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China.
authors.forename: Peiguo
authors.initials: P
authors.lastname: Cao
mesh_terms: D001483:Base Sequence; D006528:Carcinoma, Hepatocellular / Q000235:genetics* / Q000378:metabolism / Q000473:pathology; D045744:Cell Line, Tumor; D002465:Cell Movement; D049109:Cell Proliferation; D015972:Gene Expression Regulation, Neoplastic; D056945:Hep G2 Cells; D006801:Humans; D008113:Liver Neoplasms / Q000235:genetics* / Q000378:metabolism / Q000473:pathology; D035683:MicroRNAs / Q000235:genetics* / Q000378:metabolism; D008840:Microfilament Proteins / Q000037:antagonists & inhibitors / Q000235:genetics* / Q000378:metabolism; D008969:Molecular Sequence Data; D034741:RNA, Small Interfering / Q000235:genetics / Q000378:metabolism; D015398:Signal Transduction; D033921:Vesicular Transport Proteins / Q000037:antagonists & inhibitors / Q000235:genetics* / Q000378:metabolism
chemical_list: C502451:CCDC88A protein, human; C534072:MIRN101 microRNA, human; D035683:MicroRNAs; D008840:Microfilament Proteins; D034741:RNA, Small Interfering; D033921:Vesicular Transport Proteins
keywords: Girdin; invasion and metastasis; miR-101; primary hepatocellular carcinoma cell; proliferation