PMID- 25790286 OWN - NLM STAT- MEDLINE DCOM- 20160204 LR - 20181113 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 10 IP - 3 DP - 2015 TI - Neuroprotective effects of oligodendrocyte progenitor cell transplantation in premature rat brain following hypoxic-ischemic injury. PG - e0115997 LID - 10.1371/journal.pone.0115997 [doi] LID - e0115997 AB - Periventricular leukomalacia (PVL) is a common ischemic brain injury in premature infants for which there is no effective treatment. The objective of this study was to determine whether transplanted mouse oligodendrocyte progenitor cells (OPCs) have neuroprotective effects in a rat model of PVL. Hypoxia-ischemia (HI) was induced in 3-day-old rat pups by left carotid artery ligation, followed by exposure to 6% oxygen for 2.5 h. Animals were assigned to OPC transplantation or sham control groups and injected with OPCs or PBS, respectively, and sacrificed up to 6 weeks later for immunohistochemical analysis to investigate the survival and differentiation of transplanted OPCs. Apoptosis was evaluated by double immunolabeling of brain sections for caspase-3 and neuronal nuclei (NeuN), while proliferation was assessed using a combination of anti-Nestin and -bromodeoxyuridine antibodies. The expression of brain-derived neurotrophic factor (BDNF) and Bcl-2 was examined 7 days after OPC transplantation. The Morris water maze was used to test spatial learning and memory. The results showed that transplanted OPCs survived and formed a myelin sheath, and stimulated BDNF and Bcl-2 expression and the proliferation of neural stem cells (NSC), while inhibiting HI-induced neuronal apoptosis relative to control animals. Moreover, deficits in spatial learning and memory resulting from HI were improved by OPC transplantation. These results demonstrate an important neuroprotective role for OPCs that can potentially be exploited in cell-based therapeutic approaches to minimize HI-induced brain injury. FAU - Chen, Long-Xia AU - Chen LX AD - Key Laboratory of Birth Defect, Children's Hospital of Fudan University, Shanghai, China; Key Laboratory of Neonatal Diseases, Ministry of Health, Children's Hospital of Fudan University, Shanghai, China. FAU - Ma, Si-Min AU - Ma SM AD - Department of Neonatology, Children's Hospital of Fudan University, Shanghai, 201102, China; Key Laboratory of Neonatal Diseases, Ministry of Health, Children's Hospital of Fudan University, Shanghai, China. FAU - Zhang, Peng AU - Zhang P AD - Key Laboratory of Neonatal Diseases, Ministry of Health, Children's Hospital of Fudan University, Shanghai, China. FAU - Fan, Zi-Chuan AU - Fan ZC AD - Key Laboratory of Birth Defect, Children's Hospital of Fudan University, Shanghai, China. FAU - Xiong, Man AU - Xiong M AD - Key Laboratory of Neonatal Diseases, Ministry of Health, Children's Hospital of Fudan University, Shanghai, China. FAU - Cheng, Guo-Qiang AU - Cheng GQ AD - Department of Neonatology, Children's Hospital of Fudan University, Shanghai, 201102, China. FAU - Yang, Yi AU - Yang Y AD - Key Laboratory of Neonatal Diseases, Ministry of Health, Children's Hospital of Fudan University, Shanghai, China. FAU - Qiu, Zi-Long AU - Qiu ZL AD - Institute of Neuroscience, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, China. FAU - Zhou, Wen-Hao AU - Zhou WH AD - Department of Neonatology, Children's Hospital of Fudan University, Shanghai, 201102, China; Key Laboratory of Neonatal Diseases, Ministry of Health, Children's Hospital of Fudan University, Shanghai, China. FAU - Li, Jin AU - Li J AD - Institutes of Biomedical Sciences, Fudan University, Shanghai, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150319 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Proto-Oncogene Proteins c-bcl-2) RN - EC 3.4.22.- (Casp3 protein, rat) RN - EC 3.4.22.- (Caspase 3) SB - IM MH - Allografts MH - Animals MH - Apoptosis MH - Brain Ischemia/metabolism/pathology/*therapy MH - Brain-Derived Neurotrophic Factor/biosynthesis MH - Caspase 3/biosynthesis MH - Gene Expression Regulation MH - Mice MH - Neural Stem Cells/metabolism/pathology/*transplantation MH - Oligodendroglia/*metabolism/pathology MH - Proto-Oncogene Proteins c-bcl-2/biosynthesis MH - Rats MH - *Stem Cell Transplantation PMC - PMC4366232 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2015/03/20 06:00 MHDA- 2016/02/05 06:00 PMCR- 2015/03/19 CRDT- 2015/03/20 06:00 PHST- 2014/08/26 00:00 [received] PHST- 2014/12/03 00:00 [accepted] PHST- 2015/03/20 06:00 [entrez] PHST- 2015/03/20 06:00 [pubmed] PHST- 2016/02/05 06:00 [medline] PHST- 2015/03/19 00:00 [pmc-release] AID - PONE-D-14-37261 [pii] AID - 10.1371/journal.pone.0115997 [doi] PST - epublish SO - PLoS One. 2015 Mar 19;10(3):e0115997. doi: 10.1371/journal.pone.0115997. eCollection 2015.