口腔医学研究 ›› 2019, Vol. 35 ›› Issue (10): 970-974.DOI: 10.13701/j.cnki.kqyxyj.2019.10.015

• 龋病牙髓病学研究 • 上一篇    下一篇

微小RNA-210-3p在低氧环境中对人牙髓细胞增殖和分化的影响

袁晓琴*, 奂忠平, 王洪涛   

  1. 三峡大学第一临床医学院,宜昌市中心人民医院口腔科 湖北 宜昌 443000
  • 收稿日期:2019-04-12 出版日期:2019-10-28 发布日期:2019-10-22
  • 通讯作者: 袁晓琴,E-mail:94473737@qq.com
  • 作者简介:袁晓琴(1983~ ),女,湖北五峰人,硕士,主治医师,主要从事口腔修复研究。

Effects of microRNA-210-3p on Proliferation and Differentiation of Human Dental Pulp Cells under Hypoxic Condition.

YUAN Xiaoqin*, HUAN Zhongping, WANG Hongtao   

  1. Department of Stomatology, The First College of Clinical Medical Science, China Three Gorges University, Yichang Central People's Hospital, Yichang 443000, China.
  • Received:2019-04-12 Online:2019-10-28 Published:2019-10-22

摘要: 目的:探讨微小RNA(microRNA,miR)-210-3p在低氧环境下对人牙髓细胞增殖和分化的影响。方法:分离提取人牙髓细胞,检测miR-210-3p在常氧环境和低氧环境下人牙髓细胞中的表达情况。转染miR-210-3p inhibitors至人牙髓细胞,细胞计数试剂盒(cell counting kit-8,CCK-8)检测miR-210-3p抑制对低氧环境下人牙髓细胞增殖的影响。碱性磷酸酶染色、实时荧光定量聚合酶链反应 (Real-time polymerase chain reaction,Real-time PCR)及茜素红染色检测抑制miR-210-3p表达对低氧环境下人牙髓细胞分化的调控作用。结果:低氧环境培养的人牙髓细胞高表达miR-210-3p,miR-210-3p在低氧环境下可以促进人牙髓细胞的增殖,并且miR-210-3p对低氧环境下的人牙髓细胞的早期分化具有促进作用,而对晚期矿化则起到抑制作用。结论:miR-210-3p参与调控低氧环境下人牙髓细胞的增殖和分化。

关键词: 微小RNA -210-3p, 低氧, 牙髓细胞, 增殖, 分化

Abstract: Objective: To evaluate the effects of miR-210-3p on proliferation and differentiation of human dental pulp cells under hypoxic condition. Methods: Human dental pulp cells were isolated, and the expression of miR-210-3p was detected in human dental pulp cells under normoxia and hypoxic condition. After transfection of miR-210-3p inhibitors into human dental pulp cells, the proliferation effect under hypoxia was measured by CCK-8 assay. Alkaline phosphatase staining, real-time PCR and alizarin red staining were adopted to evaluate the regulatory effects of miR-210-3p inhibition on differentiation of human dental pulp cells under hypoxic condition. Results: Human dental pulp cells cultured under hypoxic condition were highly expressed with miR-210-3p. In addition, miR-210-3p promoted proliferation and early differentiation of human dental pulp cells under hypoxia while the late differentiation was inhibited by miR-210-3p in low oxygen. Conclusion: miR-210-3p involves in the regulation of proliferation and differentiation in human dental pulp cells under hypoxic condition.

Key words: microRNA-210-3p, hypoxia, human dental pulp cells, proliferation, differentiation