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首页> 外文期刊>Brain research >Hypoxia conditioning enhances neuroprotective effects of aged human bone marrow mesenchymal stem cell-derived conditioned medium against cerebral ischemia in vitro
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Hypoxia conditioning enhances neuroprotective effects of aged human bone marrow mesenchymal stem cell-derived conditioned medium against cerebral ischemia in vitro

机译:缺氧调理增强了老年人骨髓间充质干细胞衍生条件培养基对体外脑缺血的神经保护作用

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摘要

Therapeutic transplantation of autologous bone marrow mesenchymal stem cells (BMSCs) holds great promise for ischemic stroke, yet the efficacy is negatively impacted by aging. Here, we examined whether hypoxia conditioning could enhance aged human BMSCs-induced neuroprotection via secretome action. Primary cultured mouse neurons were exposed to oxygen glucose deprivation (OGD) to mimic ischemic stroke in vitro, then randomized into a hypoxia conditioned aged human BMSCs-conditioned medium (BMSC-hypoCM) versus normoxia conditioned (BMSC-norCM). After 22 h of reperfusion, cell viability was significantly increased in neurons treated with BMSC-hypoCM rather than BMSC-norCM. ELISA revealed that hypoxia conditioning enhanced vascular endothelial growth factor (VEGF) release into BMSC-derived CM. Blocking the VEGF receptor negated BMSC-hypoCM-induced protection for neurons against OGD insult. Altogether, our data indicates that hypoxia conditioning improves aged human BMSCs' therapeutic efficacy for neurons with ischemic challenge, in part via promoting secretion of VEGF.
机译:对自体骨髓间充质干细胞(BMSCs)的治疗移植对缺血性卒中具有巨大的希望,但效果受到衰老的负面影响。在这里,我们检查了缺氧调理是否可以通过沉淀作用增强人体BMSCs诱导的神经保护。将初级培养的小鼠神经元暴露于氧葡萄糖剥夺(OGD)以体外模拟缺血性卒中,然后随机分成缺氧调理老化的人BMSC - 条件培养基(BMSC-Hypacm)与常氧调节(BMSC-NORCM)。在再灌注22小时后,用BMSC-kmocm而不是BMSC-NORCM处理的神经元中的细胞活力显着增加。 ELISA显示,缺氧调节增强血管内皮生长因子(VEGF)释放到BMSC衍生的CM中。阻断VEGF受体否定BMSC-Hypocm诱导的神经元保护免受OGD侮辱的保护。完全,我们的数据表明,通过促进VEGF的分泌,缺氧调理改善了具有缺血性挑战的神经元的治疗疗效。

著录项

  • 来源
    《Brain research》 |2019年第2019期|共8页
  • 作者单位

    Capital Med Univ Dept Neurobiol Beijing 100069 Peoples R China;

    Capital Med Univ Dept Neurobiol Beijing 100069 Peoples R China;

    Capital Med Univ Dept Neurobiol Beijing 100069 Peoples R China;

    Capital Med Univ Xuanwu Hosp Dept Hematol Beijing 100053 Peoples R China;

    Capital Med Univ Xuanwu Hosp Dept Hematol Beijing 100053 Peoples R China;

    Beijing Key Lab Hypoxia Conditioning Translat Med Beijing 100053 Peoples R China;

    Capital Med Univ Dept Neurobiol Beijing 100069 Peoples R China;

    Capital Med Univ Dept Neurobiol Beijing 100069 Peoples R China;

    Univ S Florida Dept Neurosurg &

    Brain Repair Tampa FL USA;

    Univ S Florida Dept Neurosurg &

    Brain Repair Tampa FL USA;

    Univ S Florida Dept Neurosurg &

    Brain Repair Tampa FL USA;

    Beijing Key Lab Hypoxia Conditioning Translat Med Beijing 100053 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 神经病学;
  • 关键词

    Bone marrow mesenchymal stem cells (BMSCs); Aging; Conditioned medium (CM); Hypoxia; Neuroprotection;

    机译:骨髓间充质干细胞(BMSCs);老化;条件培养基(CM);缺氧;神经保护;

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