title: The Long Non-Coding RNA TP73-AS1 Interacted With miR-142 to Modulate Brain Glioma Growth Through HMGB1/RAGE Pathway.
abstract: P73 antisense RNA 1T (non-protein coding), also known as TP73-AS1 or PDAM, is a long non-coding RNA which may regulate apoptosis via regulation of p53-dependent anti-apoptotic genes. An abnormal change of TP73-AS1 expression was noticed in cancers. The effects of TP73-AS1 in brain glioma growth and the underlying mechanism remain unclear so far. In the present study, TP73-AS1 was specifically upregulated in brain glioma tissues and cell lines, and was associated with poorer prognosis in patients with glioma. TP73-AS1 knocking down suppressed human brain glioma cell proliferation and invasion in vitro, as well as HMGB1 protein. MiR-142 has been reported to play a pivotal role in cancers; here we observed that TP73-AS1 and miR-142 could negatively regulate each other. Results from luciferase assays suggested that TP73-AS1 might compete with HMGB1 for miR-142 binding. Further, HMGB1/RAGE was involved in TP73-AS1/miR-142 regulation of glioma cell proliferation and invasion. In glioma tissues, TP73-AS1 and HMGB1 expression was up-regulated, whereas miR-142 expression was down-regulated. Data from the present study revealed that TP73-AS1 promoted the brain glioma growth and invasion through acting as a competing endogenous RNA (ceRNA) to promote HMGB1 expression by sponging miR-142. In conclusion, we regarded TP73-AS1 as an oncogenic lncRNA promoting brain glioma proliferation and invasion, and a potential target for human brain glioma treatment. J. Cell. Biochem. 119: 3007-3016, 2018. © 2017 Wiley Periodicals, Inc.
authors.affiliation: Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.
authors.forename: Rong
authors.initials: R
authors.lastname: Zhang
authors.affiliation: Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.
authors.forename: Hekun
authors.initials: H
authors.lastname: Jin
authors.affiliation: Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.
authors.forename: Fan
authors.identifier: 0000-0003-3854-8306
authors.initials: F
authors.lastname: Lou
mesh_terms: D000951:Antigens, Neoplasm / Q000235:genetics; D001932:Brain Neoplasms / Q000235:genetics*; D045744:Cell Line, Tumor; D002465:Cell Movement; D049109:Cell Proliferation; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D055785:Gene Knockdown Techniques; D005910:Glioma / Q000235:genetics*; D024243:HMGB1 Protein / Q000235:genetics; D006801:Humans; D008297:Male; D035683:MicroRNAs / Q000235:genetics*; D020928:Mitogen-Activated Protein Kinases / Q000235:genetics; D011379:Prognosis; D062085:RNA, Long Noncoding / Q000235:genetics*; D015398:Signal Transduction; D016019:Survival Analysis; D015854:Up-Regulation
chemical_list: D000951:Antigens, Neoplasm; D024243:HMGB1 Protein; C585491:HMGB1 protein, human; C555159:MIRN142 microRNA, human; D035683:MicroRNAs; D062085:RNA, Long Noncoding; C000607535:long non-coding RNA KIAA0495, human; C498978:MOK protein, human; D020928:Mitogen-Activated Protein Kinases
keywords: BRAIN GLIOMA; TP73-AS1; iASPP; lncRNA; miR-142