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Growing evidence has shown that ncRNAs are involved in the fibrotic process, which is thought to be the proegumenal cause of POAG. Here, we screened out a differentially expressed circRNA (named circHBEGF) in human trabecular meshwork cells (HTMCs) under oxidative stress, which is spliced from pre-HBEGF. circHBEGF promotes the expression of extracellular matrix (ECM) genes (fibronectin and collagen I). Further studies revealed that circHBEGF could competitively bind to miR-646 as a miRNA sponge to regulate EGFR expression in HTMCs. Importantly, HBEGF can also activate EGF signaling pathways, through which can transcriptionally activate ECM genes in HTMCs. In summary, this study investigates the functions and molecular mechanisms of oxidative stress-induced circHBEGF in the regulation of ECM production in HTMCs through the miR646\/EGFR pathway. These findings further elucidate the pathogenic mechanism and may identify novel targets for the molecular therapy of POAG.<\/jats:p>","DOI":"10.1155\/2020\/4692034","type":"journal-article","created":{"date-parts":[[2020,11,25]],"date-time":"2020-11-25T04:35:11Z","timestamp":1606278911000},"page":"1-13","source":"Crossref","is-referenced-by-count":15,"title":["Oxidative Stress-Induced circHBEGF Promotes Extracellular Matrix Production via Regulating miR-646\/EGFR in Human Trabecular Meshwork Cells"],"prefix":"10.1155","volume":"2020","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9294-8816","authenticated-orcid":true,"given":"Wencui","family":"Shen","sequence":"first","affiliation":[{"name":"Tianjin Eye Hospital & Eye Institute, Tianjin Key Laboratory of Ophthalmology and Visual Science, Nankai University, Tianjin 300020, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chengzhi","family":"Wang","sequence":"additional","affiliation":[{"name":"Laboratory of Immunology and Inflammation, Department of Immunology and Research Center of Basic Medical Sciences, Key Laboratory of Immune Microenvironment and Diseases of Educational Ministry of China, Tianjin Key Laboratory of Cellular and Molecular Immunology, Tianjin Medical University, Tianjin 300070, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8489-6064","authenticated-orcid":true,"given":"Bingqing","family":"Huang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","reference":[{"key":"1","doi-asserted-by":"publisher","DOI":"10.2217\/nnm.12.69"},{"key":"2","first-page":"199","article-title":"The measurement of central corneal thickness of normal subjects and glaucomatous patients with optical coherence tomography","volume":"42","author":"L. 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