PMID- 33755879 OWN - NLM STAT- MEDLINE DCOM- 20210906 LR - 20210906 IS - 1573-4919 (Electronic) IS - 0300-8177 (Linking) VI - 476 IP - 8 DP - 2021 Aug TI - Circ_0023028 contributes to the progression of laryngeal squamous cell carcinoma by upregulating LASP1 through miR-486-3p. PG - 2951-2961 LID - 10.1007/s11010-021-04129-x [doi] AB - Circular RNAs (circRNAs) are implicated in the tumorigenesis of human cancers. However, the effects of circRNAs on laryngeal squamous cell carcinoma (LSCC) are largely unknown. Here, we aimed to explore the roles of circ_0023028 in LSCC development. Quantitative real-time polymerase chain reaction (qRT-PCR) was performed to measure circ_0023028, miR-486-3p, and Lin-Isl-Mec (LIM) and SH3 domain protein 1 (LASP1) mRNA. The characteristics of circ_0023028 were determined by RNase R digestion assay and Actinomycin D assay. Cell Counting Kit-8 (CCK-8) assay and colony formation assay were utilized for cell proliferation. Transwell assay was adopted for cell invasion and migration. Flow cytometry analysis was carried out to analyze cell cycle and apoptosis. RNA pull-down assay and dual-luciferase reporter assay were used to explore the association between miR-486-3p and circ_0023028 or LASP1. Western blot assay was adopted to measure LASP1 protein level. Murine xenograft model was executed to investigate the function of circ_0023028 in vivo. High expression of circ_0023028 was observed in LSCC tissues and cells. Circ_0023028 was stable and possessed a loop structure. Circ_0023028 silencing suppressed LSCC cell proliferation, metastasis and cell cycle process and induced apoptosis in vitro and hampered tumor growth in vivo. Further mechanism analysis demonstrated that circ_0023028 could sponge miR-486-3p to regulate LASP1 expression in LSCC cells. The malignant behaviors of LSCC cells mediated by circ_0023028 knockdown were rescued by the inhibition of miR-486-3p. Moreover, miR-486-3p suppressed LSCC cell progression via binding to LASP1. Circ_0023028 knockdown might impede the progression of LSCC by regulating miR-486-3p/LASP1 axis, which could provide a novel insight on the mechanism of LSCC progression. FAU - Zheng, Yuebin AU - Zheng Y AD - Department of Otorhinolaryngology, Head and Neck Surgery, Zigong First People's Hospital, No.42, Shangyihao Yi Zhi Road, Ziliujing, Zigong, 643000, Sichuan, China. FAU - Duan, Lifu AU - Duan L AD - Department of Otorhinolaryngology, Head and Neck Surgery, Zigong First People's Hospital, No.42, Shangyihao Yi Zhi Road, Ziliujing, Zigong, 643000, Sichuan, China. FAU - Yang, Yirong AU - Yang Y AD - Department of Otorhinolaryngology, Head and Neck Surgery, Zigong First People's Hospital, No.42, Shangyihao Yi Zhi Road, Ziliujing, Zigong, 643000, Sichuan, China. FAU - Luo, Dengyao AU - Luo D AD - Department of Otorhinolaryngology, Head and Neck Surgery, Zigong First People's Hospital, No.42, Shangyihao Yi Zhi Road, Ziliujing, Zigong, 643000, Sichuan, China. FAU - Yan, Bincheng AU - Yan B AUID- ORCID: 0000-0002-7208-3808 AD - Department of Otorhinolaryngology, Head and Neck Surgery, Zigong First People's Hospital, No.42, Shangyihao Yi Zhi Road, Ziliujing, Zigong, 643000, Sichuan, China. qghwdz3@163.com. LA - eng PT - Journal Article DEP - 20210323 PL - Netherlands TA - Mol Cell Biochem JT - Molecular and cellular biochemistry JID - 0364456 RN - 0 (Adaptor Proteins, Signal Transducing) RN - 0 (Biomarkers, Tumor) RN - 0 (Cytoskeletal Proteins) RN - 0 (LASP1 protein, human) RN - 0 (LIM Domain Proteins) RN - 0 (MIRN486 microRNA, human) RN - 0 (MicroRNAs) RN - 0 (RNA, Circular) SB - IM MH - Adaptor Proteins, Signal Transducing/genetics/*metabolism MH - Animals MH - Apoptosis MH - Biomarkers, Tumor/genetics/*metabolism MH - Carcinoma, Squamous Cell/genetics/metabolism/*pathology MH - Cell Proliferation MH - Cytoskeletal Proteins/genetics/*metabolism MH - Disease Progression MH - Female MH - *Gene Expression Regulation, Neoplastic MH - Humans MH - LIM Domain Proteins/genetics/*metabolism MH - Laryngeal Neoplasms/genetics/metabolism/*pathology MH - Male MH - Mice MH - Mice, Inbred BALB C MH - Mice, Nude MH - MicroRNAs/*genetics MH - Middle Aged MH - Prognosis MH - RNA, Circular/*genetics MH - Tumor Cells, Cultured MH - Xenograft Model Antitumor Assays OTO - NOTNLM OT - Circ_0023028 OT - LASP1 OT - LSCC OT - MiR-486-3p EDAT- 2021/03/24 06:00 MHDA- 2021/09/07 06:00 CRDT- 2021/03/23 17:57 PHST- 2020/09/22 00:00 [received] PHST- 2021/03/04 00:00 [accepted] PHST- 2021/03/24 06:00 [pubmed] PHST- 2021/09/07 06:00 [medline] PHST- 2021/03/23 17:57 [entrez] AID - 10.1007/s11010-021-04129-x [pii] AID - 10.1007/s11010-021-04129-x [doi] PST - ppublish SO - Mol Cell Biochem. 2021 Aug;476(8):2951-2961. doi: 10.1007/s11010-021-04129-x. Epub 2021 Mar 23.