Stem Cells:快速了解基于MSC衍生的外泌体的无细胞疗法

2017-03-20 MedSci MedSci原创

目前,间充质干细胞移植作为一种细胞治疗方法正在临床试验中广泛进行。由于MSC容易分离并适于体外培养增殖,所以许多临床适应症均在积极验证MSC的作用。也有许多体内动物模型的文献研究进行了验证。最近,许多实验症状积极评估MSC衍生的胞外囊泡(EV),包括外泌体(exosomes)和微泡(MV),在基于MSC的细胞治疗中的作用。这些囊泡参与细胞间传递,细胞信号传导,以及在体内短距离或长距离改变细胞或组织

目前,间充质干细胞移植作为一种细胞治疗方法正在临床试验中广泛进行。


由于MSC容易分离并适于体外培养增殖,所以许多临床适应症均在积极验证MSC的作用。也有许多体内动物模型的文献研究进行了验证。

最近,许多实验症状积极评估MSC衍生的胞外囊泡(EV),包括外泌体(exosomes)和微泡(MV),在基于MSC的细胞治疗中的作用。

这些囊泡参与细胞间传递,细胞信号传导,以及在体内短距离或长距离改变细胞或组织代谢。
外泌体和MV可以影响组织对损伤、感染和疾病的反应。

MSC衍生的外泌体中包含细胞因子和生长因子、信号脂质、mRNA和调节miRNA的内容物。MSC外泌体可用于无细胞再生医学,这一过程很大程度上将取决于它们生产的质量、重复性和效力,这些参数决定了基于细胞治疗的MSC发展。

然而,MSC外来泌的内容物不是静态的,而是MSC组织来源、其活性和MSC直接细胞间邻居的产物。因此,当MSC与肿瘤细胞一起培养或在体内肿瘤微环境中培养时,由MSC产生的外泌体内含物似乎发生了改变。基于此,认真注意产生MSC外泌体的影响因素可以为降低基于MSC的无细胞治疗的风险。

原始出处:
Phinney DG, Pittenger MF. Concise Review: MSC-Derived Exosomes for Cell-Free Therapy. Stem Cells. 2017 Mar 10. doi: 10.1002/stem.2575.

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    2017-11-23 维他命
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    2017-03-22 huanbaofeng
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SCIENCE:干细胞疗法证实安全

人类首次来自诱导多能干细胞(IPS,Induced Pluripotent Stem Cells)分化的上皮细胞的临床试验终于出成果啦!

Stem Cells:干细胞研究突破:不经遗传修饰实现重编程

Stem Cell上3月16日刊登的一篇文章报道了来自美国Buffalo大学的研究小组证明成人的皮肤细胞可以重编程转化为不带遗传修饰的神经嵴细胞(干细胞的一种),这些干细胞可以产生存在于脊髓和大脑的其他细胞。

盘点:还在为脱发秃头担心嘛?看看这些研究吧!

据世界卫生组织数据显示,在中国,平均六个人当中就有一个人存在脱发症状,同时脱发现象还会出现低龄化趋势,中青年成了“脱发大军”的主力,而且60%的男性在25岁前就开始脱发,在30岁前开始脱发的比例近84%。对于一些男性来说,没有什么事是比在浴室镜子中看到自己发际线又后退了或头发又稀疏了更让他们感到担忧。 那么对于脱发我们就束手无策了吗?NO!长期以来科学家们都在研究引发机体脱发的机

盘点:多篇文章深度解读组织再生领域突破性进展

据报道,全世界每年约有上千万人遭受着各种形式的创伤,有数百万人因在疾病康复过程中重要器官发生纤维化而导致功能丧失,而且有数十万人迫切希望进行各种器官移植。 在机体损伤和疾病康复过程中,受损的组织和器官进行修复与重建如今仍然是科学家们所面对的重大难题。当然组织再生领域的研究也一直是科学家们进行的一项重大研究课题,经过多年的研究努力,科学家们在组织再生领取取得了一定的研究成果,比