吉林大学学报(医学版) ›› 2024, Vol. 50 ›› Issue (2): 364-370.doi: 10.13481/j.1671-587X.20240209

• 基础研究 • 上一篇    

丹参酮ⅡA磺酸钠对尿毒症毒素作用下人脐静脉内皮细胞功能的影响

王立华1(),贾岚1,陈海燕1,杨波2,王喆1,毕学青1   

  1. 1.天津医科大学第二医院肾脏病血液净化科, 天津 300211
    2.天津中医药大学第一附属医院肾内科, 天津 301617
  • 收稿日期:2023-04-11 出版日期:2024-03-28 发布日期:2024-04-28
  • 通讯作者: 王立华 E-mail:sizho27099@163.com
  • 作者简介:王立华(1979-),男,天津市人,副主任医师,医学博士,主要从事肾脏病基础及临床方面的研究。
  • 基金资助:
    天津市卫健委中医中西医结合项目(2021173)

Effect of tanshinone ⅡA on function of human umbilical vein endothelial cells after treated with uremic toxin

Lihua WANG1(),Lan JIA1,Haiyan CHEN1,Bo YANG2,Zhe WANG1,Xueqing BI1   

  1. 1.Kidney Disease and Blood Purification Center,Second Hospital,Tianjin Medical University,Tianjin 300211,China
    2.Department of Nephrology,First Affiliated Hospital,Tianjin University of Traditional Chinese Medicine,Tianjin 301617,China
  • Received:2023-04-11 Online:2024-03-28 Published:2024-04-28
  • Contact: Lihua WANG E-mail:sizho27099@163.com

摘要:

目的 探讨丹参酮ⅡA磺酸钠(STS)对尿毒症毒素作用下人脐静脉内皮细胞(hUVECs)功能的影响,并阐明其作用机制。 方法 将hUVECs进行传代培养并分为空白对照组、尿毒症毒素刺激组、尿毒症毒素+STS组和尿毒症毒素+STS+细胞外信号调节激酶(ERK)抑制剂组,其中后2组中STS的浓度为10 mg·L-1;先给予各组剪切力刺激,剪切力大小为12 dyn·cm-2;采用CCK-8法测定各组细胞增殖活性,Western blotting法检测各组细胞中ERK、核因子κB(NF-κB)和Ⅰ型胶原蛋白表达水平,实时荧光定量PCR (RT-qPCR)法检测细胞中ERK、NF-κB和Ⅰ型胶原mRNA表达情况;原位末端转移酶标记技术(TUNEL)法检测各组细胞凋亡率。 结果 CCK-8法检测,在剪切力作用后,尿毒症毒素刺激组和尿毒症毒素+STS+ERK抑制剂组细胞增殖活性低于尿毒症毒素+STS组(P<0.01)。Western blotting法检测,与尿毒症毒素组比较,尿毒症毒素+STS组细胞中ERK、NF-κB和Ⅰ型胶原蛋白表达水平升高(P<0.01);抑制ERK信号通路后,与空白对照组、尿毒症毒素组和尿毒症毒素+STS组比较,尿毒症毒素+STS+ERK抑制剂组细胞中ERK、NF-κB和Ⅰ型胶原蛋白表达水平明显降低(P<0.01)。RT-qPCR法检测,与尿毒症毒素组比较,尿毒症毒素+STS组细胞中ERK、NF-κB和Ⅰ型胶原mRNA表达水平升高(P<0.01);抑制ERK通路后,与空白对照组、尿毒症毒素组和尿毒症毒素+STS组比较,尿毒症毒素+STS+ERK抑制剂组细胞中ERK、NF-κB和Ⅰ型胶原mRNA表达水平明显降低(P<0.01)。TUNEL法检测,尿毒症毒素+STS组的细胞凋亡率小于尿毒症毒素刺激组和尿毒症毒素+STS+ERK抑制剂组(P<0.05)。 结论 一定浓度STS能通过ERK信号通路调节NF-κB和Ⅰ型胶原mRNA及蛋白表达来改善尿毒症毒素作用下的内皮细胞增殖,减少细胞凋亡。

关键词: 血液透析, 动静脉内瘘, 人脐静脉内皮细胞, 尿毒症, 丹参酮ⅡA磺酸钠

Abstract:

Objective To discuss the effect of sodium tanshinone ⅡA sulfonate (STS) on the function of human umbilical vein endothelial cells (hUVECs) after treated with uremic toxin, and to clarify its mechanism. Methods The hUVECs were passaged and divided into blank control group, uremic toxin-stimulation group, uremic toxin + STS group, and uremic toxin + STS + extracellular signal-regulated kinase (ERK) inhibitor group. The concentration of STS used in the last two groups was 10 mg·L-1. The shear stress stimulation at 12 dyn·cm-2 was applied to the cells in various groups. The proliferation activities of the cells in various groups were detected by CCK-8 assay; the expression levels of ERK, nuclear factor kappa B (NF-κB), and type Ⅰ collagen proteins in the cells in various groups were detected by Western blotting method;the expression levels of ERK, NF-κB, and type Ⅰ collagen mRNA in the cells in various groups were detected by real-time fluorescence quantitative PCR (RT-qPCR) method;the apoptotic rates the cells in various groups were detected by TUNEL method. Results The CCK-8 assay results showed that after treated with shear stress, the probiferation activitres of the cells in uremic toxin-stimulation group and uremic toxin + STS + ERK inhibitor group were lower than that in uremic toxin + STS group (P<0.01). The Western blotting results showed that compared with uremic toxin group, the expression levels of ERK, NF-κB, and type Ⅰ collagen proteins in the cells in uremic toxin + STS group were increased (P<0.01). After inhibiting the ERK pathway, compared with blank control group, uremic toxin group, and uremic toxin + STS group, the expression levels of ERK, NF-κB, and type Ⅰ collagen proteins in the cells in uremic toxin + STS + ERK inhibitor group were significantly decreased (P<0.01). The RT-qPCR results showed that compared with uremic toxin group, the expression levels of ERK, NF-κB, and type Ⅰ collagen mRNA in the cells in uremic toxin + STS group were increased (P<0.01). After inhibiting the ERK signaling pathway, compared with blank control group, uremic toxin group, and uremic toxin + STS group, the expression levels of ERK, NF-κB, and type Ⅰ collagen mRNA in the cells in uremic toxin + STS + ERK inhibitor group were significantly decreased (P<0.01).The TUNEL method detection results showed that the apoptotic rate in the cells in uremic toxin + STS group was lower than those in uremic toxin-stimulation group and uremic toxin + STS + ERK inhibitor group (P<0.05). Conclusion A certain concentration of STS can improve the proliferation of the endothelial cells and reduce the apoptosis of the cells after treated with uremic toxins by modulating the expressions of NF-κB and type Ⅰ collagen mRNA and proteins through the ERK signaling pathway.

Key words: Hemodialysis, Arterial-venous fistula, Human umbilical vein endothelial cell, Uremia, Sodium tanshinone ⅡA sulphonase

中图分类号: 

  • R459.5