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Circ_0136666 aggravates osteosarcoma development through mediating miR-1244/CEP55 axis

BACKGROUND: Accumulating articles demonstrate that circular RNAs play pivotal functions in tumorigenesis. However, the working mechanism of circ_0136666 in osteosarcoma (OS) progression remains to be further clarified. METHODS: Real time-quantitative polymerase chain reaction and western blot assay...

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Autores principales: Gao, Xiang, Xu, Nanwei, Miao, Kaisong, Huang, Gao, Huang, Yong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9479312/
https://www.ncbi.nlm.nih.gov/pubmed/36109749
http://dx.doi.org/10.1186/s13018-022-03303-1
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author Gao, Xiang
Xu, Nanwei
Miao, Kaisong
Huang, Gao
Huang, Yong
author_facet Gao, Xiang
Xu, Nanwei
Miao, Kaisong
Huang, Gao
Huang, Yong
author_sort Gao, Xiang
collection PubMed
description BACKGROUND: Accumulating articles demonstrate that circular RNAs play pivotal functions in tumorigenesis. However, the working mechanism of circ_0136666 in osteosarcoma (OS) progression remains to be further clarified. METHODS: Real time-quantitative polymerase chain reaction and western blot assay were applied to determine RNA and protein expression, respectively. Cell proliferation was assessed by 5-Ethynyl-2′-deoxyuridine assay and colony formation assay. Transwell assays were carried out to assess cell migration and invasion abilities. Flow cytometry was performed to analyze cell apoptosis. Cell glycolysis was evaluated by analyzing the uptake of glucose and the production of lactate using the corresponding kits. Dual-luciferase reporter assay and biotinylated RNA-pull down assay were performed to confirm the target interaction between microRNA-1244 (miR-1244) and circ_0136666 or centrosomal protein 55 (CEP55). Xenograft tumor model was utilized to explore the role of circ_0136666 in tumor growth in vivo. RESULTS: Circ_0136666 expression was prominently elevated in OS tissues and cell lines. Circ_0136666 absence restrained the proliferation, migration, invasion and glycolytic metabolism and promoted the apoptosis of OS cells. Circ_0136666 negatively regulated miR-1244 expression by binding to it in OS cells. MiR-1244 overexpression suppressed the malignant behaviors of OS cells. CEP55 was a target of miR-1244 in OS cells. Circ_0136666 positively regulated CEP55 expression partly by sequestering miR-1244 in OS cells. CEP55 overexpression largely reversed circ_0136666 silencing-mediated influences in OS cells. Circ_0136666 silencing significantly suppressed tumor growth in vivo. CONCLUSION: Circ_0136666 silencing inhibited OS progression partly by targeting miR-1244/CEP55 signaling. Silencing circ_0136666 and CEP55 or restoring miR-1244 level might be a potential therapeutic strategy for OS.
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spelling pubmed-94793122022-09-17 Circ_0136666 aggravates osteosarcoma development through mediating miR-1244/CEP55 axis Gao, Xiang Xu, Nanwei Miao, Kaisong Huang, Gao Huang, Yong J Orthop Surg Res Research Article BACKGROUND: Accumulating articles demonstrate that circular RNAs play pivotal functions in tumorigenesis. However, the working mechanism of circ_0136666 in osteosarcoma (OS) progression remains to be further clarified. METHODS: Real time-quantitative polymerase chain reaction and western blot assay were applied to determine RNA and protein expression, respectively. Cell proliferation was assessed by 5-Ethynyl-2′-deoxyuridine assay and colony formation assay. Transwell assays were carried out to assess cell migration and invasion abilities. Flow cytometry was performed to analyze cell apoptosis. Cell glycolysis was evaluated by analyzing the uptake of glucose and the production of lactate using the corresponding kits. Dual-luciferase reporter assay and biotinylated RNA-pull down assay were performed to confirm the target interaction between microRNA-1244 (miR-1244) and circ_0136666 or centrosomal protein 55 (CEP55). Xenograft tumor model was utilized to explore the role of circ_0136666 in tumor growth in vivo. RESULTS: Circ_0136666 expression was prominently elevated in OS tissues and cell lines. Circ_0136666 absence restrained the proliferation, migration, invasion and glycolytic metabolism and promoted the apoptosis of OS cells. Circ_0136666 negatively regulated miR-1244 expression by binding to it in OS cells. MiR-1244 overexpression suppressed the malignant behaviors of OS cells. CEP55 was a target of miR-1244 in OS cells. Circ_0136666 positively regulated CEP55 expression partly by sequestering miR-1244 in OS cells. CEP55 overexpression largely reversed circ_0136666 silencing-mediated influences in OS cells. Circ_0136666 silencing significantly suppressed tumor growth in vivo. CONCLUSION: Circ_0136666 silencing inhibited OS progression partly by targeting miR-1244/CEP55 signaling. Silencing circ_0136666 and CEP55 or restoring miR-1244 level might be a potential therapeutic strategy for OS. BioMed Central 2022-09-15 /pmc/articles/PMC9479312/ /pubmed/36109749 http://dx.doi.org/10.1186/s13018-022-03303-1 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
spellingShingle Research Article
Gao, Xiang
Xu, Nanwei
Miao, Kaisong
Huang, Gao
Huang, Yong
Circ_0136666 aggravates osteosarcoma development through mediating miR-1244/CEP55 axis
title Circ_0136666 aggravates osteosarcoma development through mediating miR-1244/CEP55 axis
title_full Circ_0136666 aggravates osteosarcoma development through mediating miR-1244/CEP55 axis
title_fullStr Circ_0136666 aggravates osteosarcoma development through mediating miR-1244/CEP55 axis
title_full_unstemmed Circ_0136666 aggravates osteosarcoma development through mediating miR-1244/CEP55 axis
title_short Circ_0136666 aggravates osteosarcoma development through mediating miR-1244/CEP55 axis
title_sort circ_0136666 aggravates osteosarcoma development through mediating mir-1244/cep55 axis
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9479312/
https://www.ncbi.nlm.nih.gov/pubmed/36109749
http://dx.doi.org/10.1186/s13018-022-03303-1
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