PMID- 35003786 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220429 IS - 2081-3856 (Print) IS - 2081-6936 (Electronic) IS - 2081-6936 (Linking) VI - 12 IP - 1 DP - 2021 Jan 1 TI - Bone marrow mesenchymal stem cells overexpressing hepatocyte growth factor ameliorate hypoxic-ischemic brain damage in neonatal rats. PG - 561-572 LID - 10.1515/tnsci-2020-0204 [doi] AB - OBJECTIVES: Hypoxic-ischemic brain damage (HIBD) is a major cause of brain injury in neonates. Bone marrow mesenchymal stem cells (BMSCs) show therapeutic potential for HIBD, and genetic modification may enhance their neuroprotective effects. The goal of this study was to investigate the neuroprotective effects of hepatocyte growth factor (HGF)-overexpressing BMSCs (BMSCs-HGF) against HIBD and their underlying mechanisms. METHODS: BMSCs were transfected with HGF using adenoviral vectors. HIBD models were established and then BMSCs were transplanted into the brains of HIBD rats via intraventricular injection. 2,3,5-Triphenyltetrazolium chloride (TTC) staining was used to measure cerebral infarction volumes. In vitro, primary cultured cortical neurons were co-cultured with BMSCs in a Transwell plate system. Oxygen-glucose deprivation (OGD) was applied to imitate hypoxic-ischemic insult, and PD98059 was added to the culture medium to block the phosphorylation of extracellular signal-regulated kinase (ERK). Cell apoptosis was determined using TUNEL staining. The expression of HGF was measured by immunofluorescence, real-time quantitative PCR (RT-qPCR), and western blots. The expression of phosphorylated ERK (p-ERK) and B-cell lymphoma-2 (Bcl-2) was measured by western blots. RESULTS: HGF-gene transfection promoted BMSC proliferation. Moreover, BMSCs-HGF decreased HIBD-induced cerebral infarction volumes and enhanced the protective effects of the BMSCs against HIBD. BMSCs-HGF also increased expression of HGF, p-ERK, and Bcl-2 in brain tissues. In vitro, BMSC-HGF protected neurons against OGD-induced apoptosis. Inhibition of ERK phosphorylation abolished the neuroprotective effect of BMSCs-HGF against OGD. CONCLUSIONS: BMSCs-HGF is a potential treatment for HIBD and that the ERK/Bcl-2 pathway is involved in the underlying neuroprotective mechanism. CI - (c) 2021 Wen Zeng et al., published by De Gruyter. FAU - Zeng, Wen AU - Zeng W AD - Department of Neonatology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 611731, Sichuan, China. FAU - Wang, Yu AU - Wang Y AD - Department of Neonatology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 611731, Sichuan, China. FAU - Xi, Yufeng AU - Xi Y AD - Department of Neonatology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 611731, Sichuan, China. FAU - Wei, Guoqing AU - Wei G AD - Department of Neonatology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 611731, Sichuan, China. FAU - Ju, Rong AU - Ju R AD - Department of Neonatology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 611731, Sichuan, China. LA - eng PT - Journal Article DEP - 20211217 PL - Germany TA - Transl Neurosci JT - Translational neuroscience JID - 101550327 PMC - PMC8684041 OTO - NOTNLM OT - adenoviral vector OT - bone marrow mesenchymal stem cell OT - extracellular signal-regulated kinase OT - hepatocyte growth factor OT - hypoxic-ischemic brain damage COIS- Conflict of interest: The authors state no conflict of interest. EDAT- 2022/01/11 06:00 MHDA- 2022/01/11 06:01 PMCR- 2021/12/17 CRDT- 2022/01/10 09:18 PHST- 2021/09/22 00:00 [received] PHST- 2021/12/01 00:00 [revised] PHST- 2021/12/01 00:00 [accepted] PHST- 2022/01/10 09:18 [entrez] PHST- 2022/01/11 06:00 [pubmed] PHST- 2022/01/11 06:01 [medline] PHST- 2021/12/17 00:00 [pmc-release] AID - tnsci-2020-0204 [pii] AID - 10.1515/tnsci-2020-0204 [doi] PST - epublish SO - Transl Neurosci. 2021 Dec 17;12(1):561-572. doi: 10.1515/tnsci-2020-0204. eCollection 2021 Jan 1.