中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (5): 773-779.doi: 10.3969/j.issn.2095-4344.2017.05.020

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

人胎盘胎儿侧间充质干细胞无血清培养上清的抗氧化活性分析

付  雪1,2,张玉洁1,2,严秀蕊2,马晓娜2,刘晓明2,魏  军1,2   

  1. 1宁夏医科大学临床医学院,宁夏回族自治区银川市  750003
    2宁夏医科大学总医院人类干细胞研究所,宁夏回族自治区银川市  750004
  • 出版日期:2017-02-18 发布日期:2017-03-20
  • 通讯作者: 魏军,硕士,宁夏医科大学临床医学院,宁夏回族自治区银川市 750003;宁夏医科大学总医院人类干细胞研究所,宁夏回族自治区银川市 750004
  • 作者简介:付雪,女,1991年生,天津市人,汉族,宁夏医科大学在读硕士。
  • 基金资助:

    国家自然科学基金(81460247)

Anti-oxidative activities of supernatants of human fetal placental mesenchymal stem cells cultured in serum-free medium

Fu Xue1, 2, Zhang Yu-jie1, 2, Yan Xiu-rui2, Ma Xiao-na2, Liu Xiao-ming2, Wei Jun1, 2   

  1. 1Clinical Medicine College, Ningxia Medical University, Yinchuan 750003, Ningxia Hui Autonomous Region, China
    2Ningxia Human Stem Cell Institute, Affiliated Hospital of Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
  • Online:2017-02-18 Published:2017-03-20
  • Contact: Wei Jun, Master, Clinical Medicine College, Ningxia Medical University, Yinchuan 750003, Ningxia Hui Autonomous Region, China; Ningxia Human Stem Cell Institute, Affiliated Hospital of Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
  • About author:Fu Xue, Studying for master’s degree, Clinical Medicine College, Ningxia Medical University, Yinchuan 750003, Ningxia Hui Autonomous Region, China; Ningxia Human Stem Cell Institute, Affiliated Hospital of Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81460247

摘要:

文章快速阅读:

文题释义:
人胎盘胎儿侧间充质干细胞无血清培养上清:
是从人胎盘胎儿侧组织中提取间充质干细胞,使用无血清培养基进行原代及传代培养,待细胞生长密度达80%时收集的培养基。
氧化应激:而当机体遭受外界刺激时,这种稳态被打破,活性氧的产生大于机体自我清除能力,由此,多余的活性氧就会对机体造成一定的损伤,称其为氧化应激。

 

摘要
背景:
目前关于间充质干细胞的研究大多集中于其免疫调节功能,而关于细胞和培养上清的其抗氧化能力的研究较为少见。
目的:观察人胎盘胎儿侧间充质干细胞在无血清培养条件下,其上清的抗氧化能力。
方法:采用无血清培养基培养胎儿侧胎盘间充质干细胞,分别于48 h收集P2-P6代细胞培养上清。在空白培养基中添加维生素C 100 μmol/L作为阳性对照。检测P2-P6代人胎盘胎儿侧间充质干细胞培养上清的总抗氧化能力、清除活性氧自由基的能力和抗氧化酶活性。
结果与结论:①抗氧化能力:各代次人胎盘胎儿侧间充质干细胞培养上清具有一定的抗氧化能力,且不同代次间的上清具有一定的差异,其中总抗氧化能力与40-80 μmol/L 的维生素C相当,各代次上清均具有一定的清除二苯基苦基苯肼自由基、羟自由基、超氧阴离子自由基等自由基清除能力;②抗氧化酶活性分析:各代次间的人胎盘胎儿侧间充质干细胞培养上清中均可以检测到一定水平的超氧化物歧化酶和谷胱甘肽过氧化物酶活性;③结果提示,在无血清条件下培养胎儿侧胎盘间充质干细胞的上清具有一定的抗氧化能力和抗氧化酶的活性。人胎盘胎儿侧间充质干细胞的抗氧化能力与其旁分泌机制有关,但其中的抗氧化成分及分子机制有待进一步的研究。

 

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
ORCID:
0000-0003-2443-026X(魏军)

关键词: 干细胞, 分化, 胎盘, 胎儿侧, 间充质干细胞, 无血清培养, 培养上清, 抗氧化, 自由基清除, 抗氧化酶, 旁分泌, 无细胞治疗, 国家自然科学基金

Abstract:

BACKGROUND: Current research on mesenchymal stem cells (MSCs) is mostly focused on its immune 
regulatory function, while little is reported on the antioxidant capacity of the cells and culture supernatant.
OBJECTIVE: To investigate the anti-oxidative capacity of the supernatant harvested from human fetal placenta MSCs (fPMSCs) under a condition of serum free culture.
METHODS: fPMSCs were cultured with serum free media, and the supernatants of cells at passages 2-6 were collected at 48 hours after culture. Vitamin C was added into the culture medium, as a positive control, and its concentration was 100 μmol/L. The total antioxidant capacity, scavenging capacity of free radicals and antioxidant enzymatic activities of supernatants were measured.
RESULTS AND CONCLUSION: By comparing anti-oxidative activities of vitamin C and naïve culture medium, supernatants collected from fPMSCs cultures exhibited obvious antioxidant capacities at different extents between passages of cell cultures. The total antioxidant capacity of the culture supernatant was comparable to 40-80 μmol/L vitamin C. In addition, all supernatants derived from cells with different passages displayed capacities to scavenge free radicals, including 2,2-diphenyl-1-picrylhydrazyl radical (DPPH•), hydroxyl radical (•OH), superoxide anion radical (O2-). Even more, activities of antioxidant enzymes, including superoxide dismutase and glutathione peroxidase, were also detected in supernatants collected from different passages of fPMSCs. Under the serum-free condition, the culture supernatants of fPMSCs have antioxidant capacities at certain extent. However, the antioxidant components and underlying mechanisms need to be further studied.

 

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

Key words: stem cells, Culture supernatant, Anti-oxidative activities

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