中国组织工程研究 ›› 2025, Vol. 29 ›› Issue (23): 4965-4974.doi: 10.12307/2025.097

• 干细胞因子及调控因子 stem cell factors and regulatory factors • 上一篇    下一篇

大麻二酚对转化生长因子β1诱导肝星状细胞活化和肝纤维化的作用

王 联1,2,谢  娜2,赵珮伶1,2,陈  浩1,2,李芏酉1,2,王豫萍1,2   

  1. 1贵州医科大学附属医院临床检验中心,贵州省贵阳市   550003;2贵州医科大学医学检验学院临床微生物学及免疫学教研室,贵州省贵阳市   550004
  • 收稿日期:2024-03-06 接受日期:2024-05-22 出版日期:2025-08-18 发布日期:2024-09-30
  • 通讯作者: 王豫萍,教授,博士生导师,贵州医科大学附属医院临床检验中心,贵州省贵阳市 550003;贵州医科大学医学检验学院临床微生物学及免疫学教研室,贵州省贵阳市 550004
  • 作者简介:王联,女,1996 年生,贵州省毕节市人,汉族,贵州医科大学在读硕士,主要从事肝纤维化的防治研究。
  • 基金资助:
    国家自然科学基金项目(81860118),项目负责人:王豫萍;贵州省卫健委科学技术基金项目 (gzwkj2021-119),项目负责人:王豫萍

Effects of cannabidiol on hepatic stellate cell activation and hepatic fibrosis induced by transforming growth factor beta1

Wang Lian1, 2, Xie Na2, Zhao Peiling1, 2, Chen Hao1, 2, Li Duyou1, 2, Wang Yuping1, 2   

  1. 1Clinical Laboratory Center, Affiliated Hospital of Guizhou Medical University, Guiyang 550003, Guizhou Province, China; 2Department of Clinical Microbiology and Immunology, School of Clinical Laboratory Science, Guizhou Medical University, Guiyang 550004, Guizhou Province, China
  • Received:2024-03-06 Accepted:2024-05-22 Online:2025-08-18 Published:2024-09-30
  • Contact: Wang Yuping, Professor, Doctoral supervisor, Clinical Laboratory Center, Affiliated Hospital of Guizhou Medical University, Guiyang 550003, Guizhou Province, China; Department of Clinical Microbiology and Immunology, School of Clinical Laboratory Science, Guizhou Medical University, Guiyang 550004, Guizhou Province, China
  • About author:Wang Lian, Master candidate, Clinical Laboratory Center, Affiliated Hospital of Guizhou Medical University, Guiyang 550003, Guizhou Province, China; Department of Clinical Microbiology and Immunology, School of Clinical Laboratory Science, Guizhou Medical University, Guiyang 550004, Guizhou Province, China
  • Supported by:
    National Natural Science Foundation of China, No. 81860118 (to WYP); Guizhou Provincial Health Commission Science and Technology Foundation, No. gzwkj2021-119 (to WYP)

摘要:

文题释义:
大麻二酚:
是一种不具有精神活性的天然大麻素,提取自植物大麻,因具有镇痛、抗炎、抗氧化、抗纤维化等药理学作用而受到广泛关注,在心血管系统疾病、神经退行性疾病、自身免疫性疾病、癌症和代谢性疾病中具有重要的研究意义。

肝星状细胞:是一种位于肝脏窦周间隙的非实质细胞,参与调节肝脏生长、免疫和炎症等功能。肝星状细胞受不利因素刺激可活化成为肌成纤维细胞,过度合成并分泌细胞外基质,沉积形成纤维瘢痕,是肝纤维化发生发展过程中的关键环节。

摘要
背景:大麻二酚具有抗炎、抗氧化等药理学作用,并且不具有精神活性,在肝脏疾病中的研究日渐增加,但其对肝星状细胞转化生长因子β1/Smad信号转导通路的作用尚未明确。
目的:探讨大麻二酚对肝星状细胞中转化生长因子β1/Smad信号转导通路的影响,研究其抗肝纤维化的可能机制。
方法:①体外实验:选取大鼠肝星状细胞株(HSC-T6),分6组培养:对照组常规培养24 h,单纯药物组加入大麻二酚培养24 h,造模组加入转化生长因子β1培养24 h,造模+低剂量药物组、造模+高剂量药物组、造模+阳性对照组均加入转化生长因子β1培养24 h后分别加入1,5 μmol/L大麻二酚或水飞蓟素培养24 h。培养结束后,检测各组细胞α-平滑肌肌动蛋白与Ⅰ型胶原mRNA表达、白细胞介素1β与肿瘤坏死因子α水平及Ⅰ型胶原、转化生长因子β1/Smad信号转导通路蛋白表达。②动物体内实验:将C57BL/6J小鼠随机分为5组,每组8只:假手术组不造模,造模组、造模+低剂量药物组、造模+高剂量药物组、造模+阳性对照组通过胆管结扎法建立肝纤维化模型,造模3周后分别腹腔注射4,8 mg/kg大麻二酚或水飞蓟素,1次/d,连续给药7 d。给药结束后,检测各组小鼠肝功能、肝脏病理形态及α-平滑肌肌动蛋白、Ⅰ型胶原、转化生长因子β1/Smad信号转导通路相关蛋白表达。
结果与结论:①体外实验:与对照组比较,造模组HSC-T6细胞α-平滑肌肌动蛋白与Ⅰ型胶原mRNA表达、白细胞介素1β与肿瘤坏死因子α水平以及Ⅰ型胶原、转化生长因子β1、p-Smad2/3蛋白表达均升高(P < 0.05),Smad7蛋白表达降低(P < 0.05);两种剂量大麻二酚处理可改善转化生长因子β1诱导的HSC-T6细胞上述指标的变化,并且以造模+高剂量药物组改善作用更明显;②体内实验:与假手术组比较,模型组小鼠血清丙氨酸氨基转移酶、天门冬氨酸氨基转移酶活性升高(P < 0.05),肝组织中炎性细胞浸润及胶原含量增加(P < 0.05),转化生长因子β1/Smad信号转导通路被激活,α-平滑肌肌动蛋白、Ⅰ型胶原蛋白表达升高(P < 0.05);两种剂量大麻二酚干预可减轻造模小鼠上述指标的变化,并且以造模+高剂量药物组效果更明显;③结果表明,大麻二酚通过抑制肝星状细胞转化生长因子β1/Smad信号传导通路的激活抑制肝纤维化。

关键词: 大麻二酚, 肝星状细胞, 肝纤维化, 信号转导通路, 转化生长因子β1/Smad, HSC-T6细胞

Abstract: BACKGROUND: Cannabidiol has anti-inflammatory, antioxidant, and other pharmacological effects, and has no mental activity, so the research in liver disease is increasing day by day, but its effect on transforming growth factor-β1/Smad signal transduction pathway in hepatic stellate cells is not clear.
OBJECTIVE: To investigate the effect of cannabidiol on transforming growth factor-β1/Smad signal transduction pathway in hepatic stellate cells and its possible mechanism of anti-hepatic fibrosis.
METHODS: (1) In vitro experiment: Rat hepatic stellate cell line (HSC-T6) was selected and cultured in six groups. The control group was routinely cultured for 24 hours. The simple drug group was cultured with cannabidiol for 24 hours. The modeling group was cultured with transforming growth factor β1 for 24 hours. The modeling + low-dose drug group, the modeling + high-dose drug group, and the modeling + positive control group were cultured with transforming growth factor β1 for 24 hours, 1, 5 μmol/L cannabidiol and silymarin were cultured for 24 hours. After culture, the mRNA expression of α-smooth muscle actin and type I collagen, the levels of interleukin 1β and tumor necrosis factor α, and the protein expression of type I collagen and transforming growth factor β1/Smad signal transduction pathway were detected in each group. (2) In vivo experiments: C57BL/6J mice were randomly divided into five groups with eight mice in each group. Models were not established in the sham operation group. The liver fibrosis models were established by biliary ligation in the modeling group, the modeling+low-dose drug group, the modeling+high-dose drug group, and the modeling+positive control group. At 3 weeks after the modeling, 4, 8 mg/kg cannabidiol or silymarin were injected intraperitoneally, once a day, for 7 consecutive days. After administration, the liver function, liver pathological morphology, expression levels of α-smooth muscle actin, type I collagen, and transforming growth factor β1/Smad signal transduction pathway related protein were detected in each group. 
RESULTS AND CONCLUSION: (1) In vitro experiment: Compared with the control group, mRNA expression of α-smooth muscle actin and type I collagen, interleukin 1β and tumor necrosis factor α, and protein expression of type I collagen, transforming growth factor β1 and p-Smad2/3 in HSC-T6 cells were increased (P < 0.05), while Smad7 protein expression was decreased (P < 0.05) in the modeling group. Two doses of cannabidiol could improve the above changes in HSC-T6 cells induced by transforming growth factor β1, and the improvement was more obvious in the modeling+high-dose drug group. (2) In vivo experiment: Compared with sham operation group, the activities of serum alanine aminotransferase and aspartate aminotransferase were increased (P < 0.05), inflammatory cell infiltration and collagen content in liver tissue were increased (P < 0.05), and the transforming growth factor β1/Smad signal transduction pathway was activated; α-smooth muscle actin and type I collagen expression levels were increased (P < 0.05) in the modeling group. Two doses of cannabidiol could reduce the changes of the above indexes in the modeling mice, and the effect was more obvious in the modeling+high-dose drug group. (3) It is indicated that cannabidiol inhibits hepatic fibrosis by suppressing the activation of transforming growth factor-β1/Smad signal transduction pathway in hepatic stellate cells.

Key words: cannabidiol, hepatic stellate cell, hepatic fibrosis, signal transduction pathway, transforming growth factor-β1/Smad, HSC-T6 cell

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