中国组织工程研究 ›› 2024, Vol. 28 ›› Issue (19): 3031-3036.doi: 10.12307/2024.167

• 诱导性多能性干细胞Induced pluripotent stem cells • 上一篇    下一篇

毛蕊异黄酮对人诱导多能干细胞内皮分化的影响及机制

崔胜男1,刘传国2,杨雯晴1,2,郑志娟2,张  丹2,3   

  1. 山东中医药大学,1中医药创新研究院,2实验中心,山东省济南市   250355;3中医药经典理论教育部重点实验室,山东省济南市   250355
  • 收稿日期:2023-04-20 接受日期:2023-06-15 出版日期:2024-07-08 发布日期:2023-09-26
  • 通讯作者: 张丹,博士生导师,山东中医药大学实验中心,山东省济南市 250355;中医药经典理论教育部重点实验室,山东省济南市 250355 郑志娟,讲师,山东中医药大学实验中心,山东省济南市 250355
  • 作者简介:崔胜男,1995年生,山东省济南市人,汉族,2023年山东中医药大学毕业,硕士,主要从事中西医结合防治心血管疾病研究。
  • 基金资助:
    国家自然科学基金青年科学基金资助项目(82174337),项目负责人:杨雯晴;山东“高校20条”资助项目(2020GXRC017),项目参与人:崔胜男,郑志娟,张丹

Effects and mechanisms of calycosin on endothelial differentiation of human induced pluripotent stem cells

Cui Shengnan1, Liu Chuanguo2, Yang Wenqing1, 2, Zheng Zhijuan2, Zhang Dan2, 3   

  1. 1Innovative Institute of Traditional Chinese Medicine; 2Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong Province, China; 3Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong Province, China
  • Received:2023-04-20 Accepted:2023-06-15 Online:2024-07-08 Published:2023-09-26
  • Contact: Zhang Dan, Doctoral supervisor, Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong Province, China; Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong Province, China Zheng Zhijuan, Lecturer, Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong Province, China
  • About author:Cui Shengnan, Master, Innovative Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong Province, China
  • Supported by:
    Youth Science Foundation Project of National Natural Science Foundation of China, No. 82174337 (to YWQ); Shandong “20 Universities” Funded Project, No. 2020GXRC017 (to CSN, ZZJ, ZD)

摘要:


文题释义:

毛蕊异黄酮:在黄芪、当归等植物中可分离得到,为异黄酮类活性化合物,具有抗氧化、促血管新生的生物活性。 
内皮分化:使用生长因子定向诱导人诱导多能干细胞经过中胚层、血管内皮祖细胞的分化过程最终得到成熟内皮细胞。 


背景:内皮损伤是心血管疾病的诱因之一,人诱导多能干细胞易于获得、分化能力强、排异性较小,其内皮分化细胞可被用作心血管疾病研究的理想细胞。

目的:探讨毛蕊异黄酮对人诱导多能干细胞定向内皮分化的作用及机制,为微血管再生提供技术支持。
方法:将人诱导多能干细胞分为对照组与毛蕊异黄酮1.25,2.5 μg/mL组,进行内皮定向诱导分化。诱导分化8 d后,采用流式细胞术检测各组细胞内皮细胞标志物CD144阳性率,免疫荧光技术检测CD144、CD31荧光表达。利用慢病毒RNAi-GFP puromycin沉默人诱导多能干细胞 Piezo1 mRNA,再进行内皮定向诱导分化,诱导分化8 d后,采用流式细胞术检测分化细胞CD144阳性率,qPCR检测CD144、Piezo1、MEK的mRNA表达水平。

结果与结论:①与对照组相比,毛蕊异黄酮1.25,2.5 μg/mL组CD144阳性率显著升高(P < 0.05);毛蕊异黄酮2.5 μg/mL组CD144、Piezo1、MEK mRNA 表达水平提高(P < 0.05);毛蕊异黄酮2.5 μg/mL组CD144(P < 0.01)和CD31(P < 0.001)荧光表达显著升高;②与shNT组相比,shNT+毛蕊异黄酮1.25,2.5 μg/mL组CD144阳性率和CD144、Piezo1、MEK mRNA表达显著升高(P < 0.05),与shPiezo1组相比,shPiezo1+毛蕊异黄酮1.25,2.5 μg/mL组CD144阳性率和CD144、Piezo1、MEK mRNA表达无显著变化(P > 0.05);③实验结果提示2.5 μg/mL毛蕊异黄酮能够促进人诱导多能干细胞内皮分化,毛蕊异黄酮可以通过靶向调节Piezo1表达水平,促进下游MEK表达,从而促进人诱导多能干细胞内皮分化。

https://orcid.org/0000-0001-7172-7088 (郑志娟) 

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

关键词: 毛蕊异黄酮, 人诱导多能干细胞, 内皮细胞, 内皮分化

Abstract: BACKGROUND: Endothelial injury is one of the causes of cardiovascular diseases. Human induced pluripotent stem cells are easy to obtain, have strong differentiation ability, and have less exclusiveness, and their endothelial differentiated cells can be used as ideal cells for cardiovascular disease research.
OBJECTIVE: To investigate the effect and mechanism of calycosin on endothelial differentiation of human induced pluripotent stem cells and to provide technical support for microvascular regeneration.
METHODS: Human induced pluripotent stem cells were divided into control group and calycosin group (1.25, 2.5 μg/mL), and growth factors were added to induce single-layer endothelial differentiation. After the induction of differentiation for 8 days, the positive rate of endothelial cell marker CD144 was detected by flow cytometry. Fluorescent expressions of CD144 and CD31 were detected by the immunofluorescence method. Lentivirus RNAi GFP puromycin was used to silence human-induced pluripotent stem cell Piezo1 mRNA followed by endothelial directed differentiation. After 8 days of differentiation, the positive rate of CD144 in differentiated cells was detected by flow cytometry. The mRNA expression levels of CD144, Piezo1 and MEK were detected by qPCR. 
RESULTS AND CONCLUSION: (1) Compared with the control group, the positive rate of CD144 was significantly increased in the 1.25 and 2.5 μg/mL calycosin groups (P < 0.05). The expressions of CD144, Piezo1, and MEK mRNA were increased in the 2.5 μg/mL calycosin group (P < 0.05). The fluorescence expressions of CD144 (P < 0.01) and CD31 (P < 0.001) were significantly increased in the 2.5 μg/mL calycosin group. (2) Compared with the shNT group, CD144 positive rate and CD144, Piezo1, MEK mRNA expressions were significantly increased in the shNT + calycosin 1.25, 2.5 μg/mL groups (P < 0.05). Compared with the shPiezo1 group, the positive rate of CD144 and mRNA expressions of CD144, Piezo1 and MEK had no significant changes in the shPiezo1+calycosin 1.25, 2.5 μg/mL groups (P > 0.05). (3) It is concluded that 2.5 μg/mL calycosin promotes the differentiation of human-induced pluripotent stem cells into endothelial lineages. Calycosin promotes the downstream MEK expression, thereby promoting the endothelial differentiation of human induced pluripotent stem cells by targeting the expression level of Piezo1. 

Key words: calycosin, human induced pluripotent stem cell, endothelial cell, endothelial differentiation

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