中国组织工程研究 ›› 2024, Vol. 28 ›› Issue (19): 3024-3030.doi: 10.12307/2024.140

• 干细胞培养与分化 stem cell culture and differentiation • 上一篇    下一篇

低氧和氧化应激对不同来源间充质干细胞旁分泌的差异性影响

潘筱颖1,2,许永德3,刘志强4,邢晓雯4,杨  勇2   

  1. 1长春中医药大学,吉林省长春市   130117;2长春中医药大学附属医院泌尿外科,吉林省长春市   130021;3首都医科大学附属北京友谊医院,北京市   100000;4军事科学院军事医学科学院,北京市   100000
  • 收稿日期:2023-02-22 接受日期:2023-04-14 出版日期:2024-07-08 发布日期:2023-09-26
  • 通讯作者: 杨勇,博士研究生,主任医师,长春中医药大学附属医院泌尿外科,吉林省长春市 130021 邢晓雯,军事科学院军事医学科学院,北京市 100000
  • 作者简介:潘筱颖,女,1990年生,安徽省无为县人,汉族,2013年北京中医药大学东方学院毕业,主治医师,主要从事干细胞研究、泌尿外科疾病研究。
  • 基金资助:
    国家自然科学基金项目(8197051689),项目负责人:刘志强

Differential effects of hypoxia and oxidative stress on paracrine of mesenchymal stem cells from different sources

Pan Xiaoying1, 2, Xu Yongde3, Liu Zhiqiang4, Xing Xiaowen4, Yang Yong2   

  1. 1Changchun University of Chinese Medicine, Changchun 130117, Jilin Province, China; 2Department of Urology, Affiliated Hospital of Changchun University of Chinese Medicine, Changchun 130021, Jilin Province, China; 3Beijing Friendship Hospital, Capital Medical University, Beijing 100000, China; 4Institute of Military Medicine, Academy of Military Sciences, Beijing 100000, China
  • Received:2023-02-22 Accepted:2023-04-14 Online:2024-07-08 Published:2023-09-26
  • Contact: Yang Yong, Doctoral candidate, Chief physician, Department of Urology, Affiliated Hospital of Changchun University of Chinese Medicine, Changchun 130021, Jilin Province, China Xing Xiaowen, Institute of Military Medicine, Academy of Military Sciences, Beijing 100000, China
  • About author:Pan Xiaoying, Attending physician, Changchun University of Chinese Medicine, Changchun 130117, Jilin Province, China; Department of Urology, Affiliated Hospital of Changchun University of Chinese Medicine, Changchun 130021, Jilin Province, China
  • Supported by:
    National Natural Science Foundation of China, No. 8197051689 (to LZQ)

摘要:


文题释义:

氧化应激:是指体内氧化与抗氧化失衡的一种状态,导致中性粒细胞炎性浸润,蛋白酶分泌增加,产生大量活性氧,直接损伤细胞。

旁分泌功能:是指干细胞表达、分泌、合成的多种生物活性分子对靶细胞产生的生物学作用,是调节微环境稳态和应答外界不良刺激的重要机制。


背景:间充质干细胞的生物学行为受所处生存微环境的影响,微环境条件预处理是调控间充质干细胞功能的重要手段。

目的:对比氧化应激和低氧条件下脐带间充质干细胞、脂肪间充质干细胞旁分泌功能的差异,为治疗不同疾病选择适当的间充质干细胞预处理方式提供理论依据。
方法:培养脐带间充质干细胞和脂肪间充质干细胞,分别加入不同浓度的H2O2或不同体积分数的O2干预,检测细胞形态、增殖、活力和旁分泌因子表达。
结果与结论:①普通培养环境下,脐带间充质干细胞中脑源性神经营养因子和转化生长因子β的表达水平显著高于脂肪间充质干细胞,而脂肪间充质干细胞中基质细胞衍生因子1α和肿瘤坏死因子刺激因子6的表达水平显著高于脐带间充质干细胞;②中低浓度水

平(≤100 μmol/L)H2O2对2种间充质干细胞活力的影响无显著差异,但H2O2浓度从50 μmol/L增至100 μmol/L使脐带间充质干细胞中血管内皮生长因子表达水平显著增高,脂肪间充质干细胞中碱性成纤维细胞生长因子、血管内皮生长因子、基质细胞衍生因子1α和白细胞介素10表达水平均显著升高;③体积分数1% O2促进2种间充质干细胞增殖;体积分数1% O2干预24 h后,2种间充质干细胞中基因表达水平均有升高,但脂肪间充质干细胞中血管内皮生长因子、白细胞介素10和肿瘤坏死因子刺激因子6的表达水平显著高于脐带间充质干细胞;④结果提示:低氧和氧化应激预处理可提高间充质干细胞旁分泌功能,但2种间充质干细胞对低氧和氧化应激的响应不同,治疗疾病可选择适合的间充质干细胞预处理方式进一步提升其治疗潜力。

https://orcid.org/0009-0003-9786-6715 (潘筱颖) 

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: 脐带间充质干细胞, 脂肪间充质干细胞, 旁分泌, 氧化应激, 低氧

Abstract: BACKGROUND: The biological behavior of mesenchymal stem cells is influenced by the survival microenvironment. Pre-treatment of the microenvironment is an important means of regulating the function of mesenchymal stem cells. 
OBJECTIVE: To compare the differences in paracrine function of umbilical cord mesenchymal stem cells and adipose mesenchymal stem cells under oxidative stress and hypoxia, and to provide a theoretical basis for selecting appropriate pretreatment of mesenchymal stem cells to treat different diseases.
METHODS: Umbilical cord mesenchymal stem cells and adipose mesenchymal stem cells were cultured by H2O2 or O2 oxygen, respectively, and cell morphology, proliferation, viability and paracrine factor expression were examined.
RESULTS AND CONCLUSION: (1) The expression levels of brain-derived neurotrophic factor and transforming growth factor-β were higher in umbilical cord mesenchymal stem cells than in adipose mesenchymal stem cells under a normal culture environment, while the expressions of stromal cell-derived factor-1α and tumor necrosis factor stimulating factor-6 in the adipose mesenchymal stem cells were significantly higher than those in the umbilical cord mesenchymal stem cells. (2) There was no significant difference in the effect of low and moderate levels (≤ 100 μmol/L) of H2O2 on the viability of the two mesenchymal stem cells. However, increasing the H2O2 concentration from 50 μmol/L to 100 μmol/L resulted in a distinct increase in vascular endothelial growth factor expression in umbilical cord mesenchymal stem cells. The expression of basic fibroblast growth factor, vascular endothelial growth factor, stromal cell-derived factor-1α and interleukin-10 in adipose mesenchymal stem cells was greatly increased by increasing H2O2 concentration in this range. (3) 1% O2 hypoxia promoted mesenchymal stem cell proliferation. After 24 hours of culture in 1% O2, gene expression levels were elevated in both mesenchymal stem cells, but the expression levels of vascular endothelial growth factor, interleukin-10 and tumor necrosis factor stimulating factor-6 were significantly higher in adipose mesenchymal stem cells than in umbilical cord mesenchymal stem cells. (4) It is concluded that hypoxia and oxidative stress preconditioning enhances the paracrine function of mesenchymal stem cells. However, mesenchymal stem cells respond differently to hypoxia and oxidative stress. Treating diseases can choose suitable mesenchymal stem cells for appropriate pretreatment to further enhance their therapeutic potential.

Key words: umbilical cord mesenchymal stem cell, adipose mesenchymal stem cell, paracrine, oxidative stress, hypoxia

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