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• W2000944968 abstract "Bone marrow-derived mesenchymal stem cells (MSCs) are of therapeutic interest in a variety of neurological diseases. In this study, we wished to determine whether human MSCs secrete factors which protect cultured rodent cortical neurons from death by trophic factor withdrawal or nitric oxide (NO) exposure. Medium conditioned by MSCs attenuated neuronal death under these conditions, a process which was dependent on intact PI3kinase/Akt pathway signaling. Trophic withdrawal and NO exposure in cultured cortical neurons led to reduction in Akt signaling pathways, whereas NO administration activated p38 MAPkinase in neuronal cultures. Addition of MSC-conditioned medium significantly activated the PI3kinase/Akt pathway and in neurons exposed to NO, MSC-conditioned medium reduced p38 signaling. We show that MSCs secrete brain-derived neurotrophic factor (BDNF) and addition of anti-BDNF neutralising antibodies to MSC-conditioned medium attenuated its neuroprotective effect. Exposure of neurons to BDNF increased activation of Akt pathways and protected neurons from trophic factor withdrawal. These observations determine the mechanisms of neuroprotection offered by MSC-derived factors and suggest an important role for BDNF in neuronal protection." @default.
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• W2000944968 date "2009-07-01" @default.
• W2000944968 modified "2023-10-03" @default.
• W2000944968 title "Human bone marrow-derived mesenchymal stem cells secrete brain-derived neurotrophic factor which promotes neuronal survival in vitro" @default.
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• W2000944968 doi "https://doi.org/10.1016/j.scr.2009.02.006" @default.
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