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中国临床药理学与治疗学 ›› 2023, Vol. 28 ›› Issue (1): 29-35.doi: 10.12092/j.issn.1009-2501.2023.01.004

• 基础研究 • 上一篇    下一篇

Atglistatin对棕榈酸诱导的血管平滑肌细胞增殖及ATGL表达的影响

汤紫照,聂方钦,晏欣,符阳霞,黄珺,汪霞,郭韧   

  1. 中南大学湘雅三医院,长沙 410013,湖南 
  • 收稿日期:2021-11-03 修回日期:2022-10-09 出版日期:2023-01-26 发布日期:2023-02-14
  • 通讯作者: 郭韧,男,博士,副研究员,硕导,主要从事动脉粥样硬化相关研究。 E-mail: grfw2004@126.com
  • 作者简介:汤紫照,男,硕士研究生,主要从事动脉粥样硬化相关研究。 E-mail: tzz2021@126.com
  • 基金资助:
    湖南省自然科学基金(2021JJ31004)

Effect of Atglistatin on PA-induced VSMCs proliferation and ATGL expression

TANG Zizhao, NIE Fangqin, YAN Xin, FU Yangxia, HUANG Jun, WANG Xia, GUO Ren   

  1. The Third Xiangya Hospital, Central South University, Changsha 410013, Hunan, China
  • Received:2021-11-03 Revised:2022-10-09 Online:2023-01-26 Published:2023-02-14

摘要: 目的:通过构建棕榈酸(PA)诱导的血管平滑肌细胞(VSMC)的增殖模型,初步探讨脂肪代谢关键酶脂肪甘油三酯脂肪酶(ATGL)对于VSMC表型转化的影响。方法:在给予不同浓度的PA(分别为50 μmol/L、100 μmol/L、200 μmol/L)诱导的VSMC的增殖模型中加入40 μmol/L Atglistatin,然后通过CCK-8、EDU检测细胞活力及细胞的增殖情况;通过划痕实验检测细胞的迁移能力;通过油红染色检测VSMC中的脂滴的累积情况;通过Western blot检测ATGL以及平滑肌收缩表型蛋白的影响。结果:100 μmol/L浓度的PA可以明显诱导VSMC的增殖,促进VSMC的吞脂,使VSMC的脂滴堆积增加;同时,Atglistatin可以加剧PA导致的VSMC的增殖迁移,并增加VSMC的脂滴堆积。 结论:Atglistatin可以加剧PA诱导的VSMC的增殖,增加VSMC的脂滴堆积,并加剧VSMC的增殖表型的转变。

关键词: 棕榈酸, 脂肪甘油三酯脂肪酶, 动脉粥样硬化, Atglistatin, 脂滴

Abstract:

AIM: With building a proliferation model of PA-induced VSMC, the effect of ATGL, a key fat metabolism enzyme, on the phenotype transformation of VSMC was preliminarily explored.  METHODS: 40 μmol/L Atglistatin was added to the proliferation model of VSMC induced by PA (50 μmol/L, 100 μmol/L, and 200 μmol/L, respectively) at separately administered concentrations, and cell viability and cell proliferation were detected by CCK-8 and EDU; cell migration ability was detected by scratch assay; oil red staining was used to detect the accumulation of lipid droplets in VSMC was detected by oil red staining; the effects of PA on ATGL as well as the effects of smooth muscle contraction phenotype proteins were examined by Western blot. RESULTS: PA at a concentration of 100 μmol/L could significantly induce VSMC proliferation, promote lipophagy and increase lipid droplet accumulation in VSMC; meanwhile, Atglistatin could exacerbate these changes caused by PA and increase lipid droplet accumulation in VSMC.CONCLUSION: Atglistatin exacerbates PA-induced VSMC proliferation and increases VSMC lipid droplet accumulation, and exacerbates transformation of proliferative phenotype of VSMC.

Key words: palmitic acid, adipose triglyceride lipase, arteriosclerosis, Atglistatin, lipid droplet

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