PMID- 34187411 OWN - NLM STAT- MEDLINE DCOM- 20211019 LR - 20211019 IS - 1471-2407 (Electronic) IS - 1471-2407 (Linking) VI - 21 IP - 1 DP - 2021 Jun 29 TI - TINCR inhibits the proliferation and invasion of laryngeal squamous cell carcinoma by regulating miR-210/BTG2. PG - 753 LID - 10.1186/s12885-021-08513-0 [doi] LID - 753 AB - BACKGROUND: Terminal differentiation-induced ncRNA (TINCR) plays an essential role in epidermal differentiation and is involved in the development of various cancers. METHODS: qPCR was used to detect the expression level of TINCR in tissues and cell lines of laryngeal squamous cell carcinoma (LSCC). The potential targets of TINCR were predicted by the bioinformation website. The expression of miR-210 and BTG2 genes were detected by qPCR, and the protein levels of BTG2 and Ki-67 were evaluated by western blot. CCK-8 assay, scratch test, and transwell chamber were used to evaluate the proliferation, invasion, and metastasis ability of LSCC cells. The relationships among TINCR, miR-210, and BTG2 were investigated by bioinformatics software and luciferase reporter assay. The in vivo function of TINCR was accessed on survival rate and tumor growth in nude mice. RESULTS: We used qRT-PCR to detect the expression of TINCR in laryngeal squamous cell carcinoma (LSCC) tissues and cells and found significantly lower levels in cancer tissues compared with adjacent tissues. Additionally, patients with high TINCR expression had a better prognosis. TINCR overexpression was observed to inhibit the proliferation and invasion of LSCC cells. TINCR was shown to exert its antiproliferation and invasion effects by adsorbing miR-210, which significantly promoted the proliferation and invasion of laryngeal squamous cells. Overexpression of miR-210 was determined to reverse the tumour-suppressive effects of TINCR. BTG2 (anti-proliferation factor 2) was identified as the target gene of miR-210, and BTG2 overexpression inhibited the proliferation and invasion of LSCC cells. BTG2 knockdown relieved the inhibitory effects of TINCR on the proliferation and invasion of LSCC. Finally, TINCR upregulation slowed xenograft tumour growth in nude mice and significantly increased survival compared with control mice. CONCLUSION: The results of this study suggest that TINCR inhibits the proliferation and invasion of LSCC by regulating the miR-210/BTG2 pathway, participates in cell cycle regulation, and may become a target for the treatment of LSCC. FAU - He, Guoqing AU - He G AD - Department of Otorhinolaryngology, Head and Neck Surgery, The Second Affiliated Hospital, Harbin Medical University, No. 246 Xuefu Road, Harbin, 150086, China. FAU - Pang, Rui AU - Pang R AD - Department of Head and Neck Surgery, Harbin Medical University Cancer Hospital, No.150 Haping Road, Harbin, 150081, China. FAU - Han, Jihua AU - Han J AD - Department of Head and Neck Surgery, Harbin Medical University Cancer Hospital, No.150 Haping Road, Harbin, 150081, China. FAU - Jia, Jinliang AU - Jia J AD - Department of Head and Neck Surgery, Harbin Medical University Cancer Hospital, No.150 Haping Road, Harbin, 150081, China. FAU - Ding, Zhaoming AU - Ding Z AD - Department of Head and Neck Surgery, Harbin Medical University Cancer Hospital, No.150 Haping Road, Harbin, 150081, China. FAU - Bi, Wen AU - Bi W AD - Department of Head and Neck Surgery, Harbin Medical University Cancer Hospital, No.150 Haping Road, Harbin, 150081, China. FAU - Yu, Jiawei AU - Yu J AD - Department of Head and Neck Surgery, Harbin Medical University Cancer Hospital, No.150 Haping Road, Harbin, 150081, China. FAU - Chen, Lili AU - Chen L AD - Department of Head and Neck Surgery, Harbin Medical University Cancer Hospital, No.150 Haping Road, Harbin, 150081, China. FAU - Zhang, Jiewu AU - Zhang J AD - Department of Head and Neck Surgery, Harbin Medical University Cancer Hospital, No.150 Haping Road, Harbin, 150081, China. Zhang_Jwu_nic@126.com. FAU - Sun, Yanan AU - Sun Y AD - Department of Otorhinolaryngology, Head and Neck Surgery, The Second Affiliated Hospital, Harbin Medical University, No. 246 Xuefu Road, Harbin, 150086, China. syn2767@126.com. LA - eng GR - 81572472, 81272965, 81241085, 81372902, 81402257 and 81402234/the National Natural Science Foundation of China/ PT - Journal Article DEP - 20210629 PL - England TA - BMC Cancer JT - BMC cancer JID - 100967800 RN - 0 (MIRN210 microRNA, mouse) RN - 0 (MicroRNAs) RN - 0 (RNA, Long Noncoding) RN - 0 (TINCR lncRNA, human) SB - IM MH - Animals MH - Carcinoma, Squamous Cell MH - Cell Line, Tumor MH - Cell Proliferation MH - Humans MH - Laryngeal Neoplasms/pathology MH - Mice MH - Mice, Nude MH - MicroRNAs/*metabolism MH - RNA, Long Noncoding/*metabolism MH - Transfection PMC - PMC8243464 OTO - NOTNLM OT - BTG2 OT - Laryngeal squamous cell carcinoma OT - TINCR OT - TU212 OT - miR-210 COIS- The authors declare that they have no competing interests. EDAT- 2021/07/01 06:00 MHDA- 2021/10/21 06:00 PMCR- 2021/06/29 CRDT- 2021/06/30 05:35 PHST- 2020/09/27 00:00 [received] PHST- 2021/06/15 00:00 [accepted] PHST- 2021/06/30 05:35 [entrez] PHST- 2021/07/01 06:00 [pubmed] PHST- 2021/10/21 06:00 [medline] PHST- 2021/06/29 00:00 [pmc-release] AID - 10.1186/s12885-021-08513-0 [pii] AID - 8513 [pii] AID - 10.1186/s12885-021-08513-0 [doi] PST - epublish SO - BMC Cancer. 2021 Jun 29;21(1):753. doi: 10.1186/s12885-021-08513-0.