PMID- 36878503 OWN - NLM STAT- MEDLINE DCOM- 20230308 LR - 20230308 IS - 1673-0860 (Print) IS - 1673-0860 (Linking) VI - 58 IP - 3 DP - 2023 Mar 7 TI - [Biological function and clinical significance of long non-coding RNA LINC00342 in head and neck squamous carcinoma]. PG - 240-249 LID - 10.3760/cma.j.cn115330-20220621-00364 [doi] AB - Objective: To investigate the relationship between the long-non-coding RNA LINC00342 expression and the clinicopathological parameters of head and neck squamous cell carcinoma (HNSCC) and the biological function of LINC00342 in HNSCC cells. Methods: The expression level of LINC00342 in the HNSCC was analyzed using transcriptome sequencing data from TCGA (The Cancer Genome Atlas) database, and the expressions of LINC00342 in laryngeal squamous cell carcinoma tissues (LSCC) of 27 patients in the First Hospital of Shanxi Medical University were detected by transcriptome sequencing. The expression levels of LINC00342 in human embryonic lung diploid cells 2BS, HNSCC cell lines FD-LSC-1, CAL-27 and Detroit562 were determined by real-time quantitative polymerase chain reaction (qPCR). RNAi (RNA interference) was used for LINC00342 knockdown in HNSCC cell lines, and the changes of malignant phenotype in the tumor cells after LINC00342 knockdown were examined by cell counting kit-8 (CCK-8), colony formation, flow cytometry, transwell invasion and migration assays. Bioinformatics analysis was performed to construct a LINC00342-centered competing endogenous RNA (ceRNA) regulatory network, and GO (Gene Ontology) enrichment analysis was performed. Statistical analysis and graphing were performed using SPSS 25.0 software and GraphPad Prism 6 software. Results: Mean LINC00342 levels in HNSCC tissues and TCGA database were higher than that in normal control tissues, but with no significantly statistical difference (P=0.522). LINC00342 expression levels were positively correlated with cervical lymph node metastasis and pathological grade in patients with HNSCC, with higher expression in male patients than in female patients (P<0.05). Transcriptome sequencing analysis showed that mean expression level of LINC00342 in LSCC tissues of 27 patients was significantly higher than that in the paired adjacent normal mucosa tissues (t=1.56, P=0.036). LINC00342 expression was significantly upregulated in HNSCC cell lines FD-LSC-1, CAL-27 and Detroit562 (t-values of -12.17, -23.26 and -388.57, respectively; all P<0.001). Knockdown of LINC00342 by transfecting si-LINC00342-1 and si-LINC00342-2 inhibited HNSCC cell proliferation (t-values of 8.95 and 4.84, 2.70 and 5.55, 2.02 and 3.70, respectively), colony formation (t-values of 6.66 and 6.17, 7.38 and 11.65, 4.90 and 5.79, respectively), migration (t-values of 8.21 and 7.19, 5.76 and 6.46, 6.28 and 9.92, respectively) and invasion abilities (t-values of 9.29 and 10.25, 11.30 and 11.36, 8.02 and 8.66, respectively), but promoting apoptosis in cell lines FD-LSC-1 and CAL-27 (t-values of -2.21 and -5.83, -3.05 and -5.25 respectively) (all P-values<0.05). The LINC00342-centered ceRNA network consists of 10 downregulated microRNA and 647 upregulated mRNA nodes. GO analysis results indicated that LINC00342-regulated mRNAs were enriched in 22 biological processes, 32 molecular functions, and 12 cellular components. Conclusion: High level of LINC00342 is associated with the malignant progression of HNSCC. LINC00342 promotes the proliferation, migration, invasion, and antagonizes apoptosis of HNSCC cells, which serves as a potential molecular marker in HNSCC. FAU - Dong, Y Y AU - Dong YY AD - Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China. FAU - Zheng, X W AU - Zheng XW AD - Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China. FAU - Mijiti, Maierhaba AU - Mijiti M AD - Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China. FAU - Tian, R AU - Tian R AD - Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China. FAU - Guo, Q B AU - Guo QB AD - Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China. FAU - Wu, Y Y AU - Wu YY AD - Department of Otolaryngology Head and Neck Surgery, Longgang Otolaryngology Hospital, Shenzhen 518172, China. FAU - Gao, W AU - Gao W AD - Department of Otolaryngology Head and Neck Surgery, Longgang Otolaryngology Hospital, Shenzhen 518172, China. FAU - Wen, S X AU - Wen SX AD - Department of Otolaryngology Head and Neck Surgery, Shanxi Bethune Hospital, Taiyuan 030032, China. LA - chi GR - 201805D211007/The Excellent Talent Science and Technology Innovation Project of Shanxi Province/ PT - English Abstract PT - Journal Article PL - China TA - Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi JT - Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery JID - 101247574 RN - 0 (RNA, Long Noncoding) SB - IM MH - Humans MH - Female MH - Male MH - Squamous Cell Carcinoma of Head and Neck/genetics MH - *RNA, Long Noncoding/genetics MH - Clinical Relevance MH - Epithelial Cells MH - *Head and Neck Neoplasms/genetics EDAT- 2023/03/07 06:00 MHDA- 2023/03/09 06:00 CRDT- 2023/03/06 20:38 PHST- 2023/03/06 20:38 [entrez] PHST- 2023/03/07 06:00 [pubmed] PHST- 2023/03/09 06:00 [medline] AID - 10.3760/cma.j.cn115330-20220621-00364 [doi] PST - ppublish SO - Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2023 Mar 7;58(3):240-249. doi: 10.3760/cma.j.cn115330-20220621-00364.