›› 2020, Vol. 11 ›› Issue (3): 161-163.

• 论著 • 上一篇    下一篇

内皮素受体A对牙周膜干细胞骨向分化能力影响的研究

梁莉1,许亦权1,杨楠2,王辰1   

  1. 1. 解放军总医院第八医学中心口腔科
    2. 解放军第309医院口腔科
  • 收稿日期:2020-05-06 修回日期:2020-07-08 出版日期:2020-09-25 发布日期:2020-09-30
  • 通讯作者: 梁莉 E-mail:lily1981125@126.com
  • 基金资助:
    国家自然科学基金

Effects of endothelin receptor A on osteoblastic differentiation function of periodontal ligament stem cells

  • Received:2020-05-06 Revised:2020-07-08 Online:2020-09-25 Published:2020-09-30

摘要: 目的:研究内皮素受体A(ETRA)对牙周膜干细胞(PDLSCs)成骨分化能力的影响。方法:构建ETRA小干扰RNA(siRNA)载体,转染PDLSCs后,采用实时定量RT-PCR及Western?Blot检测转染前后ETRA的表达情况。用100?nmol/L内皮素-1(ET-1)刺激siETRA转染和未转染的的PDLSCs?14?d,碱性磷酸酶(ALP)染色观察PDLSCs成骨能力的变化,实时定量RT-PCR及Western?Blot检测PDLSCs?Runt相关转录因子2(RUNX2)和骨钙素(OCN)的表达情况。结果:ETRA干扰载体可有效地抑制PDLSCs中ETRA表达。ET-1刺激后,未转染组PDLSCs?ALP染色增强,RUNX2和OCN表达升高(P<0.05),但对siETRA稳定转染组ALP染色、RUNX2和OCN表达无显著影响(P>0.05)。结论:ET-1可能通过ETRA促进PDLSCs的骨向分化能力。

关键词: 内皮素受体A, 牙周膜干细胞, 成骨分化, 小干扰 RNA

Abstract: Objective:?To investigate the effects of endothelin receptor A(ETRA)on osteogenic differentiation function of periodontal ligament stem cells (PDLSCs). Methods:?The small interfering RNA (siRNA) technique was employed to inhibit ETRA expression in PDLSCs and cells were cultured with ET-1 (100?nmol/L) for 14 days. The osteoblastic differentiation function of PDLSCs was observed by alkaline phosphatase staining. The expression of RUNX2 and OCN mRNAs and proteins in PDLSCs were detected by real-time RT-PCR and Western Blot, respectively. Results:?ETRA interference vector can effectively inhibit the expression of ETRA in PDLSCs. ET-1 significantly enhanced the expression of RUNX2 and OCN of PDLSCs(P<0.05). However, ET-1 had no effect on the expression of RUNX2 and OCN of PDLSCs stably transfected by siETRA(P>0.05). Conclusions: These results indicate that endothelin-1 may stimulate the osteogenic differentiation of PDLSCs via ETRA.

Key words: endothelin receptor A, periodontal ligament stem cells, small interfering RNA