首页|LncRNA DANCR通过负调控miR-216a表达参与牙周膜干细胞成骨分化和迁移

LncRNA DANCR通过负调控miR-216a表达参与牙周膜干细胞成骨分化和迁移

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目的:探究长链非编码RNA分化拮抗非蛋白编码RNA(lncRNA DANCR)对人牙周膜干细胞(human periodontal ligament stem cells,hPDLSCs)成骨分化和迁移的影响及其潜在机制.方法:采用Western blot方法检测成骨标志物碱性磷酸酶(alkaline phosphatase,ALP)、骨钙素(osteocalcin,OCN)和 Runt 相关转录因子 2(Runt-related transcription factor 2,RUNX2)的蛋白表达.qRT-PCR检测miR-216a-5p和DANCR的相对表达水平.miR-216a-5p和DANCR之间的关系通过荧光素酶报告基因、RNA免疫沉淀进行评估.Transwell实验检测细胞迁移能力.结果:hPDLSCs被成骨分化诱导培养基刺激后,DANCR 表达降低而 miR-216a-5p 表达升高.DANCR 过表达或者 miR-216a-5p敲低均降低了 hPDLSCs 中 ALP、OCN 和 RUNX2 的蛋白表达,并且抑制了 ALP 活性和细胞迁移能力.DANCR与miR-216a-5p存在靶向关系.结论:DANCR可通过调控miR-216a表达参与hPDLSCs成骨分化和迁移.
LncRNA DANCR participates in osteogenic differentiation and migration of periodontal ligament cells through negative regulation of miR-216a expression
Objective:To explore the effect of long non-coding RNA differentiation antagonizing non-protein coding RNA(lncRNA DANCR)on the osteogenic differentiation and migration of human periodontal ligament stem cells(hPDLSCs)and its underlying mechanism.Methods:The protein expression of osteogenic markers alkaline phosphatase(ALP),osteocal-cin(OCN)and Runt-related transcription factor 2(RUNX2)was detected by Western blot.The levels of miR-216a-5p and DANCR were detected by qRT-PCR.The relationship between miR-216a-5p and DANCR was assessed by luciferase reporter gene,RNA immunoprecipitation.Transwell assay was used to detect cell migration ability.Results:The levels of DANCR ex-pression decreased and miR-216a-5p expression increased after PDLSCs were stimulated by osteogenic differentiation induc-tion medium.DANCR overexpression or miR-216a-5p knockdown both reduced the protein expression of ALP,OCN and RUNX2 in PDLSCs,and inhibited ALP activity and cell migration ability.There was a targeting relationship between DANCR and miR-216a-5p.Conclusion:DANCR may participate in the osteogenic differentiation and migration of PDLSCs by regula-ting the expression of miR-216a.

PeriodontitisLncRNA DANCRmiR-216aPeriodontal ligament cells

任燕、张雪、白静、李月辉

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唐山市丰润区人民医院 河北 唐山 064000

唐山市中心医院 河北 唐山 063000

开滦(集团)有限责任公司唐家庄医院 河北 唐山 063100

牙周炎 LncRNA DANCR miR-216a 牙周膜细胞

河北省自然医学科学基金项目

20230540

2024

临床口腔医学杂志
华中科技大学同济医学院附属同济医院,中华口腔医学会口腔黏膜病专业委员会 中华医学会武汉分会

临床口腔医学杂志

CSTPCD
影响因子:0.783
ISSN:1003-1634
年,卷(期):2024.40(1)
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