实用医学杂志 ›› 2023, Vol. 39 ›› Issue (24): 3182-3187.doi: 10.3969/j.issn.1006-5725.2023.24.006

• 基础研究 • 上一篇    下一篇

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1,韩宇环2,李丽洁1()   

  1. 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 出版日期:2023-12-25 发布日期:2024-01-10
  • 通讯作者: 李丽洁 E-mail:pawpaw1213@163.com
  • 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 WU1,Yuhuan HAN2,Lijie. LI1()   

  1. *.Department of Stomatology,Affiliated Hospital of Inner Mongolia Medical University,Hohhot 010050,China
  • Received:2023-05-17 Online:2023-12-25 Published:2024-01-10
  • Contact: Lijie. LI E-mail:pawpaw1213@163.com

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。

关键词: 丹参酮ⅡA, 脂肪酸合成酶/脂肪酸合成酶配体信号通路, 牙髓干细胞, 增殖, 凋亡

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.

Key words: tanshinone ⅡA, fatty acid synthase/fatty acid synthase ligand signaling pathway, dental pulp stem cells, proliferation, apoptosis

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