{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T06:33:52Z","timestamp":1787207632758,"version":"build-2736575974"},"reference-count":62,"publisher":"Wiley","license":[{"start":{"date-parts":[[2022,8,26]],"date-time":"2022-08-26T00:00:00Z","timestamp":1661472000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Disease Markers"],"published-print":{"date-parts":[[2022,8,26]]},"abstract":"<jats:p>Nasopharyngeal carcinoma (NPC) is a common malignancy of the nasopharynx, and radioresistant represents the main obstacle in NPC treatment. Malignant transformation of normal cells is driven by genetic and epigenetic changes, which are primarily manifested as changes in miRNA levels and DNA methylation status. microRNA (miR)-613 plays an inhibitory role in several types of cancer. Herein, the current study sought to explore the roles of miR-613 in NPC cell radiosensitivity. miR-613 expression patterns in NPC tissues were detected, and its correlation with clinical indexes was analyzed. NP-69 and C666-1 cell lines were selected for cellular experimentation. Radioresistant cell line C666-1R was obtained by fractionated radiation. Cell viability, survival fraction, and apoptosis were detected by CCK-8, colony formation assay, and flow cytometry. The binding relation between miR-613 and DNMT3B was verified by dual-luciferase and RIP assays. miR-613 was lowly expressed in NPC tissues and cells, with lower expression levels in C666-1R than C666-1, and further correlated with lymph node metastasis, tumor size, and tumor metastasis. miR-613 overexpression reduced C666-1R cell viability and survival fraction and increased apoptosis, while C666-1 cells with silencing miR-613 presented the opposite trends. miR-613 targeted DNMT3B. miR-613 and DNMT3B overexpression led to enhanced C666-1R cell viability and survival fraction and decreased apoptosis. miR-613 reduced TIMP3 methylation and elevated TIMP3 protein level by inhibiting DNMT3B. miR-613 enhanced NPC radiosensitivity by inhibiting the DNMT3B\/TIMP3\/STAT1\/FOXO1 pathway. Collectively, miR-613 inhibited DNMT3B, reduced TIMP3 methylation, and increased TIMP3 protein level, thus inhibiting the STAT1\/FOXO1 pathway and enhancing the radiosensitivity of NPC cells.<\/jats:p>","DOI":"10.1155\/2022\/5699275","type":"journal-article","created":{"date-parts":[[2022,8,26]],"date-time":"2022-08-26T22:35:24Z","timestamp":1661553324000},"page":"1-14","source":"Crossref","is-referenced-by-count":5,"title":["MicroRNA-613 Enhances Nasopharyngeal Carcinoma Cell Radiosensitivity via the DNA Methyltransferase 3B\/Tissue Inhibitor of Matrix Metalloproteinase-3\/Signal Transducer and Activator of Transcription-1\/Forkhead Box O-1 Axis"],"prefix":"10.1155","volume":"2022","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2112-7129","authenticated-orcid":true,"given":"Liqiang","family":"Deng","sequence":"first","affiliation":[{"name":"Department of Pediatric Otolaryngology, The First People\u2019s Hospital of Chenzhou, Hunan Province 423000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3293-6597","authenticated-orcid":true,"given":"Qing","family":"Yin","sequence":"additional","affiliation":[{"name":"Department of Pediatric Gastroenterology, The First People\u2019s Hospital of Chenzhou, Hunan Province 423000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8344-4314","authenticated-orcid":true,"given":"Shuyun","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology-Head and Neck Surgery, The Affiliated Hospital of Southwest Medical University, Taiping Avenue 25, Luzhou 646000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0410-3440","authenticated-orcid":true,"given":"Debao","family":"Luo","sequence":"additional","affiliation":[{"name":"Department of Otorhinolaryngology, The First People\u2019s Hospital of Chenzhou, Hunan Province 423000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","reference":[{"key":"1","doi-asserted-by":"publisher","DOI":"10.1097\/CEJ.0000000000000314"},{"key":"2","doi-asserted-by":"publisher","DOI":"10.1158\/1541-7786.MCR-17-0134"},{"key":"3","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(19)30956-0"},{"key":"4","doi-asserted-by":"publisher","DOI":"10.1053\/j.semdp.2015.02.021"},{"key":"5","doi-asserted-by":"publisher","DOI":"10.5582\/ddt.2017.01030"},{"key":"6","doi-asserted-by":"publisher","DOI":"10.1259\/bjr.20190209"},{"key":"7","doi-asserted-by":"publisher","DOI":"10.7150\/thno.21451"},{"key":"8","doi-asserted-by":"publisher","DOI":"10.3233\/CBM-190739"},{"key":"9","doi-asserted-by":"publisher","DOI":"10.1002\/jcp.27486"},{"key":"10","doi-asserted-by":"publisher","DOI":"10.1002\/cam4.660"},{"key":"11","doi-asserted-by":"publisher","DOI":"10.3109\/09553002.2015.1096028"},{"key":"12","doi-asserted-by":"publisher","DOI":"10.18632\/oncotarget.4138"},{"key":"13","doi-asserted-by":"publisher","DOI":"10.1038\/nature02871"},{"key":"14","doi-asserted-by":"publisher","DOI":"10.1155\/2015\/186904"},{"issue":"11","key":"15","doi-asserted-by":"crossref","first-page":"379","DOI":"10.3390\/biology9110379","article-title":"Droplet digital PCR analysis of liquid biopsy samples unveils the diagnostic role of hsa-miR-133a-3p and hsa-miR-375-3p in oral cancer","volume":"9","author":"S. 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