PMID- 34124974 OWN - NLM STAT- MEDLINE DCOM- 20211130 LR - 20211130 IS - 1365-2060 (Electronic) IS - 0785-3890 (Print) IS - 0785-3890 (Linking) VI - 53 IP - 1 DP - 2021 Dec TI - Hsa_circ_0042823 accelerates cancer progression via miR-877-5p/FOXM1 axis in laryngeal squamous cell carcinoma. PG - 960-970 LID - 10.1080/07853890.2021.1934725 [doi] AB - BACKGROUND: Laryngeal squamous cell carcinoma (LSCC) is a common malignant tumour of the head and neck. Our previous study reveals that the circular RNA (circRNA) hsa_circ_0042823 is abnormally expressed in LSCC, suggesting that hsa_circ_0042823 is closely associated with LSCC. Here, we attempted to explore the molecular mechanism of hsa_circ_0042823 in LSCC. METHODS: Quantitative real-time PCR and western blot were performed to assess the expression of gene and protein in human laryngeal carcinoma cells, TU212 and TU686. MTT and transwell assays were performed to examine cell proliferation, migration and invasion. The relationship among hsa_circ_0042823, miR-877-5p and forkhead box M1 (FOXM1) was verified by luciferase reporter assay. Finally, we constructed a subcutaneous tumour mouse model to analyse in vivo growth of LSCC cells following knockdown of hsa_circ_0042823. RESULTS: Compared with normal human bronchial epithelial cells (HBECs), hsa_circ_0042823 was highly expressed in the LSCC cell lines (AMC-HN-8 and TU686). Further studies demonstrated that hsa_circ_0042823 interacted with miR-877-5p, and FOXM1 was the target of miR-877-5p. Hsa_circ_0042823 promoted the expression of FOXM1 via its ceRNA activity on miR-877-5p. Hsa_circ_0042823 overexpression promoted proliferation, migration and invasion of AMC-HN-8 cells through regulating miR-877-5p/FOXM1 axis. Additionally, inhibition of hsa_circ_0042823 inhibited growth of LSCC in vivo via miR-877-5p/FOXM1 axis. CONCLUSIONS: Hsa_circ_0042823/miR-877-5p/FOXM1 axis participates in the progression of LSCC. This work demonstrates that hsa_circ_0042823 accelerates cancer progression by regulating miR-877-5p/FOXM1 axis in LSCC. Therefore, this study may provide new insights into the pathogenesis of LSCC.KEY MESSAGESHsa_circ_0042823 promotes FOXM1 expression by sponging miR-877-5p.Hsa_circ_0042823 promotes proliferation, migration, invasion of LSCC cells.Hsa_circ_0042823 knockdown inhibits tumour growth of LSCC via miR-877-5p/FOXM1 axis. FAU - Wu, Tianyi AU - Wu T AD - Department of Otolaryngology, Head and Neck Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University; People's Hospital of Henan University, Zhengzhou, PR China. FAU - Sun, Yanan AU - Sun Y AD - Department of Otolaryngology, Head and Neck Surgery, The Second Affiliated Hospital, Harbin Medical University, Harbin, PR China. FAU - Sun, Zhanwei AU - Sun Z AD - Department of Otolaryngology, Head and Neck Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University; People's Hospital of Henan University, Zhengzhou, PR China. FAU - Li, Shichao AU - Li S AD - Department of Otolaryngology, Head and Neck Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University; People's Hospital of Henan University, Zhengzhou, PR China. FAU - Wang, Weiwei AU - Wang W AD - Department of Otolaryngology, Head and Neck Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University; People's Hospital of Henan University, Zhengzhou, PR China. FAU - Yu, Boyu AU - Yu B AD - Department of Otolaryngology, Head and Neck Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University; People's Hospital of Henan University, Zhengzhou, PR China. FAU - Wang, Guangke AU - Wang G AD - Department of Otolaryngology, Head and Neck Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University; People's Hospital of Henan University, Zhengzhou, PR China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Ann Med JT - Annals of medicine JID - 8906388 RN - 0 (FOXM1 protein, human) RN - 0 (Forkhead Box Protein M1) RN - 0 (MIRN877 microRNA, human) RN - 0 (MicroRNAs) RN - 0 (RNA, Circular) SB - IM MH - Animals MH - Cell Proliferation/genetics MH - Disease Progression MH - *Forkhead Box Protein M1/genetics MH - *Head and Neck Neoplasms/genetics MH - Humans MH - *Laryngeal Neoplasms/genetics MH - Mice MH - *MicroRNAs/genetics MH - RNA, Circular MH - *Squamous Cell Carcinoma of Head and Neck/genetics PMC - PMC8204964 OTO - NOTNLM OT - Circular RNA OT - FOXM1 OT - hsa_circ_0042823 OT - invasion OT - laryngeal squamous cell carcinoma OT - miR-877-5p OT - migration OT - proliferation OT - tumour growth COIS- All authors declare no conflict of interest. EDAT- 2021/06/15 06:00 MHDA- 2021/12/01 06:00 PMCR- 2021/06/14 CRDT- 2021/06/14 12:21 PHST- 2021/06/14 12:21 [entrez] PHST- 2021/06/15 06:00 [pubmed] PHST- 2021/12/01 06:00 [medline] PHST- 2021/06/14 00:00 [pmc-release] AID - 1934725 [pii] AID - 10.1080/07853890.2021.1934725 [doi] PST - ppublish SO - Ann Med. 2021 Dec;53(1):960-970. doi: 10.1080/07853890.2021.1934725.