期刊
JOURNAL OF CELLULAR AND MOLECULAR MEDICINE
卷 23, 期 4, 页码 2822-2835出版社
WILEY
DOI: 10.1111/jcmm.14190
关键词
extracellular vesicles; human umbilical cord mesenchymal stem cell; improve; nerve regeneration; sciatic nerve transection
资金
- LiuGeYi Projects of Jiangsu Province [LGY2016055]
- Six Talent Peaks of Jiangsu Province [WSN-009]
- Key Medical Personnel of Zhenjiang [2014]
- clinical science and technology development foundation of Jiangsu University [JLY20160081]
- key research and development programs of Jiangsu Province [BE2017697]
- XueDiJiFang Projects of Jiangsu Province [x201812]
- Jiangsu Provincial Medical Innovation Team [CXTDC2016009]
- Affiliated Hospital of Jiangsu University [jdfyRC2015010]
- National Natural Science Foundation of China [81871243]
- Science and Technology Plan Project of Changzhou [CJ20180001]
Peripheral nerve injury results in limited nerve regeneration and severe functional impairment. Mesenchymal stem cells (MSCs) are a remarkable tool for peripheral nerve regeneration. The involvement of human umbilical cord MSC-derived extracellular vesicles (hUCMSC-EVs) in peripheral nerve regeneration, however, remains unknown. In this study, we evaluated functional recovery and nerve regeneration in rats that received hUCMSC-EV treatment after nerve transection. We observed that hUCMSC-EV treatment promoted the recovery of motor function and the regeneration of axons; increased the sciatic functional index; resulted in the generation of numerous axons and of several Schwann cells that surrounded individual axons; and attenuated the atrophy of the gastrocnemius muscle. hUCMSC-EVs aggregated to rat nerve defects, down-regulated interleukin (IL)-6 and IL-1 beta, up-regulated IL-10 and modulated inflammation in the injured nerve. These effects likely contributed to the promotion of nerve regeneration. Our findings indicate that hUCMSC-EVs can improve functional recovery and nerve regeneration by providing a favourable micro environment for nerve regeneration. Thus, hUCMSC-EVs have considerable potential for application in the treatment of peripheral nerve injury.
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