PMID- 31400488 OWN - NLM STAT- MEDLINE DCOM- 20200924 LR - 20200924 IS - 1873-7544 (Electronic) IS - 0306-4522 (Linking) VI - 417 DP - 2019 Oct 1 TI - HucMSCs-Derived miR-206-Knockdown Exosomes Contribute to Neuroprotection in Subarachnoid Hemorrhage Induced Early Brain Injury by Targeting BDNF. PG - 11-23 LID - S0306-4522(19)30542-1 [pii] LID - 10.1016/j.neuroscience.2019.07.051 [doi] AB - Early brain injury (EBI) is the most important potentially treatable cause of mortality and morbidity following subarachnoid hemorrhage (SAH). Apoptosis is one of the main pathologies of SAH-induced EBI. Numerous studies suggest that human umbilical cord derived mesenchymal stem cells (hucMSCs) may exert neuroprotective effect through exosomes instead of transdifferentiation. In addition, microRNA-206 (miR-206) targets BDNF and plays a critical role in brain injury diseases. However, the therapy effect of miR-206 modified exosomes on EBI after SAH and its regulatory mechanism have not been elucidated. Here, to identify whether hucMSCs-derived miR-206-knockdown exosomes have a better neuroprotective effect, we established SAH rat model and treated it with the exosomes to research the mechanism of miR-206 in EBI after SAH. We found that treatment with hucMSCs-derived miR-206-knockdown exosomes has a greater neuroprotective effect on SAH-induced EBI compared to treatment with simple exosomes. The miR-206-knockdown exosomes could significantly improve neurological deficit and brain edema and suppress neuronal apoptosis by targeting BDNF. Moreover, the BDNF/TrkB/CREB pathway was activated following treatment with miR-206 modified exosomes in vivo. In summary, these findings indicate that the hucMSCs-derived miR-206-knockdown exosomes prevent early brain injury by inhibiting apoptosis via BDNF/TrkB/CREB signaling. This may serve as a novel therapeutic target for treatment of SAH-induced EBI. CI - Copyright (c) 2019 IBRO. Published by Elsevier Ltd. All rights reserved. FAU - Zhao, Hao AU - Zhao H AD - Department of Neurosurgery, The Seventh Medical Center of the PLA General Hospital, Beijing, 100000, China. FAU - Li, Yunjun AU - Li Y AD - Department of Neurosurgery, The Seventh Medical Center of the PLA General Hospital, Beijing, 100000, China. FAU - Chen, Lihua AU - Chen L AD - Department of Neurosurgery, The Seventh Medical Center of the PLA General Hospital, Beijing, 100000, China. FAU - Shen, Chunsen AU - Shen C AD - Department of Neurosurgery, The Seventh Medical Center of the PLA General Hospital, Beijing, 100000, China. FAU - Xiao, Zongyu AU - Xiao Z AD - Department of Neurosurgery, Affiliated Hospital of Qinghai University, Xining, 810000, China. FAU - Xu, Ruxiang AU - Xu R AD - Department of Neurosurgery, The Seventh Medical Center of the PLA General Hospital, Beijing, 100000, China. FAU - Wang, Ji AU - Wang J AD - Department of Neurosurgery, The Seventh Medical Center of the PLA General Hospital, Beijing, 100000, China; Department of Neurosurgery, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China. Electronic address: neuro-wangji@hotmail.com. FAU - Luo, Yongchun AU - Luo Y AD - Department of Neurosurgery, The Seventh Medical Center of the PLA General Hospital, Beijing, 100000, China. Electronic address: lyc81nk@163.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190807 PL - United States TA - Neuroscience JT - Neuroscience JID - 7605074 RN - 0 (Apoptosis Regulatory Proteins) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Cyclic AMP Response Element-Binding Protein) RN - 0 (Membrane Glycoproteins) RN - 0 (MicroRNAs) RN - 0 (Neuroprotective Agents) RN - 0 (mirn206 microRNA, rat) RN - EC 2.7.10.1 (Receptor, trkB) RN - EC 2.7.10.1 (tropomyosin-related kinase-B, human) SB - IM MH - Animals MH - Apoptosis/physiology MH - Apoptosis Regulatory Proteins/metabolism MH - Brain/metabolism MH - Brain Edema/pathology MH - Brain Injuries/pathology MH - Brain-Derived Neurotrophic Factor/*metabolism MH - Cyclic AMP Response Element-Binding Protein/metabolism MH - Exosomes/*genetics/metabolism/*transplantation MH - Gene Knockdown Techniques MH - Humans MH - Male MH - Membrane Glycoproteins/metabolism MH - Mesenchymal Stem Cells MH - MicroRNAs/*metabolism MH - Neuroprotection/*physiology MH - Neuroprotective Agents/pharmacology MH - Rats MH - Rats, Sprague-Dawley MH - Receptor, trkB/metabolism MH - Signal Transduction MH - Subarachnoid Hemorrhage/*metabolism/pathology/*therapy OTO - NOTNLM OT - brain-derived neurotrophic factor OT - early brain injury OT - exosomes OT - miR-206 OT - subarachnoid hemorrhage EDAT- 2019/08/11 06:00 MHDA- 2020/09/25 06:00 CRDT- 2019/08/11 06:00 PHST- 2019/04/19 00:00 [received] PHST- 2019/07/30 00:00 [revised] PHST- 2019/07/31 00:00 [accepted] PHST- 2019/08/11 06:00 [pubmed] PHST- 2020/09/25 06:00 [medline] PHST- 2019/08/11 06:00 [entrez] AID - S0306-4522(19)30542-1 [pii] AID - 10.1016/j.neuroscience.2019.07.051 [doi] PST - ppublish SO - Neuroscience. 2019 Oct 1;417:11-23. doi: 10.1016/j.neuroscience.2019.07.051. Epub 2019 Aug 7.