Shaoxing Second Hospital, 123 Yanan Road, Shaoxing, 312000, Zhejiang, China.
The Children's Hospital of Zhejiang University School of Medicine, 3333 Binsheng Road, Hangzhou, 310051, Zhejiang, China.
Stem Cell Res Ther. 2019 Nov 28;10(1):359. doi: 10.1186/s13287-019-1484-6.
Extracellular vesicles (EVs) contain proteins, microRNAs, mRNAs, long non-coding RNAs, and phospholipids, and are a novel mechanism of intercellular communication. It has been proposed that the immunomodulatory and regenerative effects of mesenchymal stem/stromal cells (MSCs) are mainly mediated by soluble paracrine factors and MSC-derived EVs (MSC-EVs). Recent studies suggest that MSC-EVs may serve as a novel and cell-free alternative to whole-cell therapies. The focus of this review is to discuss the functional proteins which facilitate the effects of MSC-EVs. The first section of the review discusses the general functions of EV proteins. Next, we describe the proteomics of MSC-EVs as compared with their parental cells. Then, the review presents the current knowledge that protein contents of MSC-EVs play an essential role in immunomodulation and treatment of various diseases. In summary, functional protein components are at least partially responsible for disease-modulating capacity of MSC-EVs.
细胞外囊泡 (EVs) 包含蛋白质、microRNAs、mRNAs、长非编码 RNA 和磷脂,是细胞间通讯的新机制。有人提出,间充质干细胞 (MSCs) 的免疫调节和再生作用主要是通过可溶性旁分泌因子和 MSC 衍生的 EVs (MSC-EVs) 介导的。最近的研究表明,MSC-EVs 可能作为一种新型的无细胞替代物用于全细胞治疗。本综述的重点是讨论促进 MSC-EVs 作用的功能性蛋白质。综述的第一部分讨论了 EV 蛋白质的一般功能。接下来,我们描述了 MSC-EVs 的蛋白质组学与亲本细胞的比较。然后,本综述介绍了目前的知识,即 MSC-EVs 的蛋白质含量在免疫调节和治疗各种疾病中起着至关重要的作用。综上所述,功能性蛋白质成分至少部分负责 MSC-EVs 的疾病调节能力。