PMID- 34515990 OWN - NLM STAT- MEDLINE DCOM- 20220125 LR - 20240226 IS - 1749-0774 (Electronic) IS - 0914-7470 (Linking) VI - 34 IP - 6 DP - 2021 Nov TI - Long non-coding RNA CCAT2 drives the growth of laryngeal squamous cell carcinoma via regulating YAP activity. PG - 1878-1887 LID - 10.1007/s13577-021-00606-z [doi] AB - Emerging evidence suggests that long non-coding RNA (lncRNA) is closely associated with numerous human diseases, including cancer. However, the functional relevance of lncRNA in human laryngeal squamous cell carcinoma (LSCC) is largely unknown. In the current study, we described CCAT2, a previously unappreciated oncogenic lncRNA in LSCC. CCAT2 was significantly upregulated in human LSCC tissue and serum samples, associated with larger tumor volume, higher clinical stage, and poorer differentiation status. Lentivirus-mediated CCAT2 knockdown notably repressed the cell viability, colony formation, and DNA synthesis rate of LSCC. Screening of transcription factors revealed that YAP/TEAD activity was affected by CCAT2 in LSCC cells. Further, CCAT2 directly binds to YAP protein and blocks the phosphorylation of YAP induced by LATS1, resulting in the nuclear translocation of YAP and the activation of YAP oncogenic targets, such as CTGF, CYR61 and AMOTL2. Importantly, we also confirmed the regulation of CCAT2 on YAP activity in vivo based on nude mice model. Altogether, we identified a novel lncRNA that controls YAP nucleocytoplasmic shuttling and promotes LSCC cell proliferation. Given the importance of YAP in tumorigenesis and progression, our results provide insights to intervene LSCC by targeting the CCAT2/YAP axis. CI - (c) 2021. Japan Human Cell Society. FAU - Zang, Yanzi AU - Zang Y AD - Department of Otolaryngology, People's Hospital of Henan Province, 7 Weiwu Road, Zhengzhou, 450003, Henan, People's Republic of China. FAU - Li, Jing AU - Li J AD - Department of Otolaryngology, People's Hospital of Henan Province, 7 Weiwu Road, Zhengzhou, 450003, Henan, People's Republic of China. FAU - Wan, Baoluo AU - Wan B AD - Department of Otolaryngology, People's Hospital of Henan Province, 7 Weiwu Road, Zhengzhou, 450003, Henan, People's Republic of China. FAU - Tai, Yong AU - Tai Y AD - Department of Otolaryngology, People's Hospital of Henan Province, 7 Weiwu Road, Zhengzhou, 450003, Henan, People's Republic of China. FAU - Liu, Hongjian AU - Liu H AD - Department of Otolaryngology, People's Hospital of Henan Province, 7 Weiwu Road, Zhengzhou, 450003, Henan, People's Republic of China. liuhjzz07@yeah.net. FAU - Li, Qian AU - Li Q AD - Department of Otolaryngology, People's Hospital of Henan Province, 7 Weiwu Road, Zhengzhou, 450003, Henan, People's Republic of China. FAU - Ji, Yuzi AU - Ji Y AD - Department of Otolaryngology, People's Hospital of Henan Province, 7 Weiwu Road, Zhengzhou, 450003, Henan, People's Republic of China. LA - eng GR - 201201702196702196/henan province science and technology tackling project/ PT - Journal Article DEP - 20210913 PL - Japan TA - Hum Cell JT - Human cell JID - 8912329 RN - 0 (Cell Cycle Proteins) RN - 0 (DNA, Neoplasm) RN - 0 (RNA, Long Noncoding) RN - 0 (Transcription Factors) RN - 0 (YY1AP1 protein, human) RN - 0 (long non-coding RNA CCAT2, human) RN - EC 2.7.1.- (LATS1 protein, human) RN - EC 2.7.11.1 (Protein Serine-Threonine Kinases) SB - IM MH - Animals MH - Carcinoma, Squamous Cell/*genetics/*pathology/therapy MH - Cell Cycle Proteins/*genetics/*metabolism MH - Cell Proliferation/genetics MH - Cell Survival/genetics MH - DNA, Neoplasm/metabolism MH - Disease Models, Animal MH - Gene Expression Regulation, Neoplastic/*genetics MH - Humans MH - Laryngeal Neoplasms/*genetics/*pathology/therapy MH - Mice, Nude MH - Molecular Targeted Therapy MH - Phosphorylation/genetics MH - Protein Binding/genetics MH - Protein Serine-Threonine Kinases/physiology MH - RNA, Long Noncoding/genetics/metabolism/*physiology MH - Transcription Factors/*genetics/*metabolism MH - Tumor Cells, Cultured MH - Up-Regulation/genetics MH - Mice OTO - NOTNLM OT - Biomarker OT - CCAT2 OT - Protein binding OT - Translocation OT - YAP EDAT- 2021/09/14 06:00 MHDA- 2022/01/27 06:00 CRDT- 2021/09/13 12:37 PHST- 2021/06/27 00:00 [received] PHST- 2021/08/28 00:00 [accepted] PHST- 2021/09/14 06:00 [pubmed] PHST- 2022/01/27 06:00 [medline] PHST- 2021/09/13 12:37 [entrez] AID - 10.1007/s13577-021-00606-z [pii] AID - 10.1007/s13577-021-00606-z [doi] PST - ppublish SO - Hum Cell. 2021 Nov;34(6):1878-1887. doi: 10.1007/s13577-021-00606-z. Epub 2021 Sep 13.