基础研究

丹参酮ⅡA调节Fas/FasL信号通路对脂多糖诱导的牙髓干细胞增殖和凋亡的影响

  • 武万超 ,
  • 韩宇环 ,
  • 李丽洁
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  • 1.内蒙古医科大学附属医院口腔科 (呼和浩特 010050 )
    2.呼和浩特市口腔医院综合科 (呼和浩特 010000 )

收稿日期: 2023-05-17

  网络出版日期: 2024-01-10

基金资助

内蒙古自治区卫生健康科技计划项目(202202170)

Impacts of tanshinone IIA on lipopolysaccharide induced proliferation and apoptosis of dental pulp stem cells by regulating the Fas/FasL signaling pathway

  • Wanchao WU ,
  • Yuhuan HAN ,
  • Lijie. LI
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  • *.Department of Stomatology,Affiliated Hospital of Inner Mongolia Medical University,Hohhot 010050,China

Received date: 2023-05-17

  Online published: 2024-01-10

摘要

目的 探讨丹参酮ⅡA(Tan ⅡA)调节脂肪酸合成酶(Fas)/脂肪酸合成酶配体(FasL)通路对脂多糖(LPS)诱导的牙髓干细胞增殖和凋亡的影响。 方法 鉴定从需正畸的18 ~ 20岁患者第三磨牙中分离的人牙髓干细胞(hDPSCs)。用低、中、高剂量Tan ⅡA处理LPS诱导的hDPSCs后,再用人重组FasL蛋白(rh FasL)干预高剂量Tan ⅡA作用后的LPS诱导的hDPSCs,检测hDPSCs增殖、凋亡、hDPSCs上清液中肿瘤坏死因子-α(TNF-α)、白细胞介素(IL)-6水平及hDPSCs中增殖细胞核抗原(PCNA)、裂解的天冬氨酸特异性半胱氨酸蛋白酶-3(Cleaved Caspase-3)、Fas、FasL蛋白表达。 结果 成功分离出hDPSCs。Tan ⅡA可促进LPS诱导的牙髓干细胞增殖,抑制凋亡,上调PCNA蛋白表达,抑制TNF-α、IL-6水平及Cleaved Caspase-3、Fas、FasL蛋白表达,且呈剂量依赖性,rh FasL对LPS诱导的牙髓干细胞的影响与上述对应指标变化趋势相反(P < 0.05);rh FasL减弱了高剂量Tan ⅡA对LPS诱导的牙髓干细胞增殖的促进以及对细胞凋亡的抑制作用。 结论 Tan ⅡA可能通过抑制Fas/FasL信号通路促进LPS诱导的hDPSCs增殖,抑制凋亡。

本文引用格式

武万超 , 韩宇环 , 李丽洁 . 丹参酮ⅡA调节Fas/FasL信号通路对脂多糖诱导的牙髓干细胞增殖和凋亡的影响[J]. 实用医学杂志, 2023 , 39(24) : 3182 -3187 . DOI: 10.3969/j.issn.1006-5725.2023.24.006

Abstract

Objective To investigate the impacts of tanshinone ⅡA (Tan ⅡA) on lipopolysaccharide (LPS) induced proliferation and apoptosis of dental pulp stem cells by regulating the fatty acid synthase (Fas)/fatty acid synthase ligand (FasL) signaling pathway. Methods Identification of human pulp stem cells (hDPSCs) isolated from the third molar of 18 ~ 20 years old patients requiring orthodontics. Lps-induced hDPSCs were treated with low, medium and high doses of Tan ⅡA, and then human recombinant FasL protein (rh FasL) was used to intervene the LPS-induced hDPSCs after high dose Tan ⅡA. Proliferation and apoptosis of hDPSCs, levels of tumor necrosis factor-α (TNF-α) and interleukin (IL)-6 in hDPSCs supernatant, proliferating cell nuclear antigen (PCNA), Cleaved aspartate-specific cysteine proteinase-3 (Cleaved Caspase-3) , Fas, FasL protein expression were detected. Results hDPSCs were successfully isolated. In a dose-dependent manner, Tan IIA promoted LPS-induced proliferation, inhibited apoptosis, up-regulated PCNA protein expression, and inhibited TNF-α, IL-6 level, Cleaved Caspase-3, Fas, and FasL protein expression. The effect of rh FasL on LPS-induced dental pulp stem cells was opposite to the above indexes (P < 0.05). rh FasL attenuates the effect of high-dose Tan ⅡA on proliferation and apoptosis of LPS-induced dental pulp stem cells. Conclusion Tan ⅡA may promote LPS induced hDPSCs proliferation and inhibit apoptosis by inhibiting the Fas/FasL signaling pathway.

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