PMID- 29516218 OWN - NLM STAT- MEDLINE DCOM- 20190401 LR - 20190401 IS - 1432-0878 (Electronic) IS - 0302-766X (Print) IS - 0302-766X (Linking) VI - 372 IP - 3 DP - 2018 Jun TI - Neural crest stem cells protect spinal cord neurons from excitotoxic damage and inhibit glial activation by secretion of brain-derived neurotrophic factor. PG - 493-505 LID - 10.1007/s00441-018-2808-z [doi] AB - The acute phase of spinal cord injury is characterized by excitotoxic and inflammatory events that mediate extensive neuronal loss in the gray matter. Neural crest stem cells (NCSCs) can exert neuroprotective and anti-inflammatory effects that may be mediated by soluble factors. We therefore hypothesize that transplantation of NCSCs to acutely injured spinal cord slice cultures (SCSCs) can prevent neuronal loss after excitotoxic injury. NCSCs were applied onto SCSCs previously subjected to N-methyl-D-aspartate (NMDA)-induced injury. Immunohistochemistry and TUNEL staining were used to quantitatively study cell populations and apoptosis. Concentrations of neurotrophic factors were measured by ELISA. Migration and differentiation properties of NCSCs on SCSCs, laminin, or hyaluronic acid hydrogel were separately studied. NCSCs counteracted the loss of NeuN-positive neurons that was otherwise observed after NMDA-induced excitotoxicity, partly by inhibiting neuronal apoptosis. They also reduced activation of both microglial cells and astrocytes. The concentration of brain-derived neurotrophic factor (BDNF) was increased in supernatants from SCSCs cultured with NCSCs compared to SCSCs alone and BDNF alone mimicked the effects of NCSC application on SCSCs. NCSCs migrated superficially across the surface of SCSCs and showed no signs of neuronal or glial differentiation but preserved their expression of SOX2 and Krox20. In conclusion, NCSCs exert neuroprotective, anti-apoptotic and glia-inhibitory effects on excitotoxically injured spinal cord tissue, some of these effects mediated by secretion of BDNF. However, the investigated NCSCs seem not to undergo neuronal or glial differentiation in the short term since markers indicative of an undifferentiated state were expressed during the entire observation period. FAU - Schizas, Nikos AU - Schizas N AD - The OrthoLab, Department of Surgical Sciences, Section of Orthopaedics, Uppsala University, SE-751 85, Uppsala, Sweden. nikos.schizas@surgsci.uu.se. FAU - Konig, N AU - Konig N AD - Department of Neuroscience, Biomedicine Centre (BMC) Uppsala, BOX 593, SE-751 24, Uppsala, Sweden. FAU - Andersson, B AU - Andersson B AD - The OrthoLab, Department of Surgical Sciences, Section of Orthopaedics, Uppsala University, SE-751 85, Uppsala, Sweden. FAU - Vasylovska, S AU - Vasylovska S AD - Department of Neuroscience, Biomedicine Centre (BMC) Uppsala, BOX 593, SE-751 24, Uppsala, Sweden. FAU - Hoeber, J AU - Hoeber J AD - Department of Neuroscience, Biomedicine Centre (BMC) Uppsala, BOX 593, SE-751 24, Uppsala, Sweden. FAU - Kozlova, E N AU - Kozlova EN AD - Department of Neuroscience, Biomedicine Centre (BMC) Uppsala, BOX 593, SE-751 24, Uppsala, Sweden. FAU - Hailer, N P AU - Hailer NP AD - The OrthoLab, Department of Surgical Sciences, Section of Orthopaedics, Uppsala University, SE-751 85, Uppsala, Sweden. LA - eng GR - 20716 to E.K/Vetenskapsradet/International PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180307 PL - Germany TA - Cell Tissue Res JT - Cell and tissue research JID - 0417625 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Culture Media) RN - 0 (Neurotoxins) RN - 25852-47-5 (Hydrogel, Polyethylene Glycol Dimethacrylate) SB - IM MH - Animals MH - Apoptosis/drug effects MH - Astrocytes/pathology MH - Brain-Derived Neurotrophic Factor/*metabolism/pharmacology MH - Cell Movement/drug effects MH - Culture Media MH - Hydrogel, Polyethylene Glycol Dimethacrylate MH - Mice, Inbred C57BL MH - Mice, Transgenic MH - Neural Crest/*cytology MH - Neural Stem Cells/*cytology/drug effects/metabolism MH - Neuroglia/metabolism/*pathology MH - Neurons/drug effects/*pathology MH - *Neuroprotection/drug effects MH - Neurotoxins/*toxicity MH - Spheroids, Cellular/pathology MH - Spinal Cord/*pathology MH - Spinal Cord Ventral Horn/pathology MH - Stem Cell Transplantation MH - White Matter/pathology PMC - PMC5949140 OTO - NOTNLM OT - Apoptosis OT - Excitotoxicity OT - Neuroprotection OT - Secretion of soluble factors OT - Suppressed glial activation EDAT- 2018/03/09 06:00 MHDA- 2019/04/02 06:00 PMCR- 2018/03/07 CRDT- 2018/03/09 06:00 PHST- 2017/05/31 00:00 [received] PHST- 2018/01/24 00:00 [accepted] PHST- 2018/03/09 06:00 [pubmed] PHST- 2019/04/02 06:00 [medline] PHST- 2018/03/09 06:00 [entrez] PHST- 2018/03/07 00:00 [pmc-release] AID - 10.1007/s00441-018-2808-z [pii] AID - 2808 [pii] AID - 10.1007/s00441-018-2808-z [doi] PST - ppublish SO - Cell Tissue Res. 2018 Jun;372(3):493-505. doi: 10.1007/s00441-018-2808-z. Epub 2018 Mar 7.