ChongShu Wang, MingMing Dong, XiaoYi Zhang, XiaoYu Wang, Yan Zhao, Yunpeng Cao
{"title":"circCCDC6与microRNA-128-3p的竞争性结合激活TXNIP/NLRP3通路并促进脑缺血再灌注缺陷。","authors":"ChongShu Wang, MingMing Dong, XiaoYi Zhang, XiaoYu Wang, Yan Zhao, Yunpeng Cao","doi":"10.18388/abp.2020_6552","DOIUrl":null,"url":null,"abstract":"<p><strong>Objective: </strong>Circular RNAs (circRNAs) are enriched in the brain and involved in various central nervous system diseases. The potential role of circCCDC6 in cerebral ischemia-reperfusion defects was partly elucidated in the work.</p><p><strong>Methods: </strong>A middle cerebral artery occlusion/reperfusion (MCAO/R) rat model and an oxygen-glucose deprivation and re-oxygenation (OGD/R)-treated SH-SY5Y cell model were constructed. CircCCDC6 expression in the two models was examined, and circCCDC6-involved mechanisms in neuronal pyroptosis and inflammation were analyzed through loss- and gain-of-function assays.</p><p><strong>Results: </strong>MCAO/R rat brain tissues and OGD/R-treated SH-SY5Y cells exhibited upregulated circCCDC6. Silencing circCCDC6 attenuated neuronal pyroptosis and inflammation in the brain tissue of MCAO/R rats. Overexpressing circCCDC6 or inhibiting miR-128-3p stimulated OGD/R-induced pyroptosis and inflammation in SH-SY5Y cells, while upregulating miR-128-3p attenuated OGD/R injury. CircCCDC6 silencing-induced effects on SH-SY5Y cells were antagonized by TXNIP overexpression.</p><p><strong>Conclusion: </strong>Mechanistically, circCCDC6 mediates miR-128-3p and activates TXNIP/NLRP3, thereby promoting OGD/R-induced neuronal pyroptosis and inflammation. CircCCDC6 may provide a new strategy for the treatment of MCAO/R.</p>","PeriodicalId":6984,"journal":{"name":"Acta biochimica Polonica","volume":" ","pages":"807-815"},"PeriodicalIF":1.4000,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Competitive binding of circCCDC6 to microRNA-128-3p activates TXNIP/NLRP3 pathway and promotes cerebral ischemia-reperfusion defects.\",\"authors\":\"ChongShu Wang, MingMing Dong, XiaoYi Zhang, XiaoYu Wang, Yan Zhao, Yunpeng Cao\",\"doi\":\"10.18388/abp.2020_6552\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Objective: </strong>Circular RNAs (circRNAs) are enriched in the brain and involved in various central nervous system diseases. The potential role of circCCDC6 in cerebral ischemia-reperfusion defects was partly elucidated in the work.</p><p><strong>Methods: </strong>A middle cerebral artery occlusion/reperfusion (MCAO/R) rat model and an oxygen-glucose deprivation and re-oxygenation (OGD/R)-treated SH-SY5Y cell model were constructed. CircCCDC6 expression in the two models was examined, and circCCDC6-involved mechanisms in neuronal pyroptosis and inflammation were analyzed through loss- and gain-of-function assays.</p><p><strong>Results: </strong>MCAO/R rat brain tissues and OGD/R-treated SH-SY5Y cells exhibited upregulated circCCDC6. Silencing circCCDC6 attenuated neuronal pyroptosis and inflammation in the brain tissue of MCAO/R rats. Overexpressing circCCDC6 or inhibiting miR-128-3p stimulated OGD/R-induced pyroptosis and inflammation in SH-SY5Y cells, while upregulating miR-128-3p attenuated OGD/R injury. CircCCDC6 silencing-induced effects on SH-SY5Y cells were antagonized by TXNIP overexpression.</p><p><strong>Conclusion: </strong>Mechanistically, circCCDC6 mediates miR-128-3p and activates TXNIP/NLRP3, thereby promoting OGD/R-induced neuronal pyroptosis and inflammation. CircCCDC6 may provide a new strategy for the treatment of MCAO/R.</p>\",\"PeriodicalId\":6984,\"journal\":{\"name\":\"Acta biochimica Polonica\",\"volume\":\" \",\"pages\":\"807-815\"},\"PeriodicalIF\":1.4000,\"publicationDate\":\"2023-11-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Acta biochimica Polonica\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.18388/abp.2020_6552\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"BIOCHEMISTRY & MOLECULAR BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta biochimica Polonica","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.18388/abp.2020_6552","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
Competitive binding of circCCDC6 to microRNA-128-3p activates TXNIP/NLRP3 pathway and promotes cerebral ischemia-reperfusion defects.
Objective: Circular RNAs (circRNAs) are enriched in the brain and involved in various central nervous system diseases. The potential role of circCCDC6 in cerebral ischemia-reperfusion defects was partly elucidated in the work.
Methods: A middle cerebral artery occlusion/reperfusion (MCAO/R) rat model and an oxygen-glucose deprivation and re-oxygenation (OGD/R)-treated SH-SY5Y cell model were constructed. CircCCDC6 expression in the two models was examined, and circCCDC6-involved mechanisms in neuronal pyroptosis and inflammation were analyzed through loss- and gain-of-function assays.
Results: MCAO/R rat brain tissues and OGD/R-treated SH-SY5Y cells exhibited upregulated circCCDC6. Silencing circCCDC6 attenuated neuronal pyroptosis and inflammation in the brain tissue of MCAO/R rats. Overexpressing circCCDC6 or inhibiting miR-128-3p stimulated OGD/R-induced pyroptosis and inflammation in SH-SY5Y cells, while upregulating miR-128-3p attenuated OGD/R injury. CircCCDC6 silencing-induced effects on SH-SY5Y cells were antagonized by TXNIP overexpression.
Conclusion: Mechanistically, circCCDC6 mediates miR-128-3p and activates TXNIP/NLRP3, thereby promoting OGD/R-induced neuronal pyroptosis and inflammation. CircCCDC6 may provide a new strategy for the treatment of MCAO/R.
期刊介绍：
Acta Biochimica Polonica is a journal covering enzymology and metabolism, membranes and bioenergetics, gene structure and expression, protein, nucleic acid and carbohydrate structure and metabolism.
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