PMID- 35419461 OWN - NLM STAT- MEDLINE DCOM- 20220415 LR - 20220531 IS - 2314-7156 (Electronic) IS - 2314-8861 (Print) IS - 2314-7156 (Linking) VI - 2022 DP - 2022 TI - Long Noncoding RNA Hotair Promotes the Progression and Immune Escape in Laryngeal Squamous Cell Carcinoma through MicroRNA-30a/GRP78/PD-L1 Axis. PG - 5141426 LID - 10.1155/2022/5141426 [doi] LID - 5141426 AB - Homeobox (HOX) transcript antisense RNA (Hotair) is elevated in many cancers significantly. However, the oncogenic role of Hotair in human laryngeal squamous cell carcinoma (LSCC) is still unknown. Thus, we explored the expression profile of Hotair and its function in LSCC. We observed high expression levels of Hotair in six LSCC cell lines compared to the human nasopharyngeal epithelial cell line. Knockdown of Hotair inhibited proliferation and enhanced apoptosis of Tu212 and Hep-2 cell lines in vitro. Moreover, the overexpression of hsa-miR-30a-5p inhibited the expression of GRP78 and PD-L1, but Hotair overexpression in LSCC cells rescues both proteins. Furthermore, the impacts of hsa-miR-30a-5p upregulation on the apoptosis and proliferation of LSCC cells were rescued by overexpression of Hotair. Finally, we combined si-Hotair and a VEGF inhibitor to treat LSCC cells in vitro or in vivo and surprisingly observed a significant inhibition of LSCC growth. In summary, these results indicate that Hotair displays an oncogenic role in both malignancy and immune escape in LSCC related to hsa-miR-30a-5p/GRP78/PD-L1 signaling. Therefore, Hotair may be a potential target for treating LSCC. CI - Copyright (c) 2022 Xiaowei Yuan et al. FAU - Yuan, Xiaowei AU - Yuan X AD - Department of Otorhinolaryngology, People's Hospital of Dongxihu District, Wuhan, China. FAU - Shen, Qinhua AU - Shen Q AD - Department of Pharmacy, People's Hospital of Dongxihu District, Wuhan, China. FAU - Ma, Wenxue AU - Ma W AUID- ORCID: 0000-0002-5807-8957 AD - Department of Otorhinolaryngology-Head and Neck Surgery, Second People's Hospital of Jingmen, 39 Xiangshan Road, Jingmen Hubei Province 448000, China. LA - eng PT - Journal Article DEP - 20220404 PL - Egypt TA - J Immunol Res JT - Journal of immunology research JID - 101627166 RN - 0 (B7-H1 Antigen) RN - 0 (Endoplasmic Reticulum Chaperone BiP) RN - 0 (HOTAIR long untranslated RNA, human) RN - 0 (HSPA5 protein, human) RN - 0 (MIRN30a microRNA, human) RN - 0 (MicroRNAs) RN - 0 (RNA, Long Noncoding) SB - IM MH - B7-H1 Antigen/genetics/metabolism MH - Cell Line, Tumor MH - Cell Proliferation/genetics MH - Endoplasmic Reticulum Chaperone BiP MH - Gene Expression Regulation, Neoplastic MH - Humans MH - *Laryngeal Neoplasms/genetics/immunology MH - MicroRNAs/genetics MH - *RNA, Long Noncoding/genetics MH - *Squamous Cell Carcinoma of Head and Neck/genetics/immunology MH - *Tumor Escape PMC - PMC9001128 COIS- None of the authors has any competing interests in the manuscript. EDAT- 2022/04/15 06:00 MHDA- 2022/04/16 06:00 PMCR- 2022/04/04 CRDT- 2022/04/14 05:22 PHST- 2021/08/16 00:00 [received] PHST- 2021/12/29 00:00 [revised] PHST- 2022/02/22 00:00 [accepted] PHST- 2022/04/14 05:22 [entrez] PHST- 2022/04/15 06:00 [pubmed] PHST- 2022/04/16 06:00 [medline] PHST- 2022/04/04 00:00 [pmc-release] AID - 10.1155/2022/5141426 [doi] PST - epublish SO - J Immunol Res. 2022 Apr 4;2022:5141426. doi: 10.1155/2022/5141426. eCollection 2022.