PMID- 20468049 OWN - NLM STAT- MEDLINE DCOM- 20100826 LR - 20220330 IS - 1098-1136 (Electronic) IS - 0894-1491 (Print) IS - 0894-1491 (Linking) VI - 58 IP - 9 DP - 2010 Jul TI - Astrocytic endogenous glial cell derived neurotrophic factor production is enhanced by bone marrow stromal cell transplantation in the ischemic boundary zone after stroke in adult rats. PG - 1074-81 LID - 10.1002/glia.20988 [doi] AB - Bone marrow stromal cells (BMSCs) facilitate functional recovery in rats after focal ischemic attack. Growing evidence suggests that the secretion of various bioactive factors underlies BMSCs' beneficial effects. This study investigates the expression of glial cell derived neurotrophic factor (GDNF) in the ischemic hemisphere with or without BMSC administration. Adult male Wistar rats were subjected to 2 h of middle cerebral artery occlusion followed by an injection of 3 x 10(6) BMSCs (n = 11) or phosphate-buffered saline (n = 10) into the tail vein 24 h later. Animals were sacrificed seven days later. Single and double immunohistochemical staining was performed to measure GDNF, Ki67, doublecortin, and glial fibrillary acidic protein expression as well as the number of apoptotic cells along the ischemic boundary zone (IBZ) and/or in the subventricular zone (SVZ). BMSC treatment significantly increased GDNF expression and decreased the number of apoptotic cells in the IBZ (P < 0.05). GDNF expression was colocalized with GFAP. Meanwhile, BMSCs increased the number of Ki-67 positive cells and the density of DCX positive migrating neuroblasts (P < 0.05). GDNF expression was significantly increased in single astrocytes collected from animals treated with BMSCs, and in astrocytes cocultured with BMSCs after OGD (P < 0.05). Our data suggest that BMSCs increase GDNF levels in the ischemic hemisphere; the major source of GDNF protein is reactive astrocytes. We propose that the increase of GDNF in response to BMSC administration creates a hospitable environment for local cellular repair as well as for migrating neuroblasts from the SVZ, and thus contributes to the functional improvement. CI - Copyright 2010 Wiley-Liss, Inc. FAU - Shen, L H AU - Shen LH AD - Department of Neurology, Henry Ford Hospital, 2799 West Grand Boulevard, Detroit, Michigan 48202, USA. FAU - Li, Y AU - Li Y FAU - Chopp, M AU - Chopp M LA - eng GR - P01 NS042345/NS/NINDS NIH HHS/United States GR - R01 NS045041/NS/NINDS NIH HHS/United States GR - R01 NS045041-04/NS/NINDS NIH HHS/United States GR - R01 NS066041/NS/NINDS NIH HHS/United States PT - Journal Article PL - United States TA - Glia JT - Glia JID - 8806785 RN - 0 (Dcx protein, rat) RN - 0 (Doublecortin Protein) RN - 0 (Gdnf protein, rat) RN - 0 (Glial Cell Line-Derived Neurotrophic Factor) SB - IM MH - Aging MH - Animals MH - Apoptosis/physiology MH - Astrocytes/*metabolism MH - *Bone Marrow Transplantation MH - Brain/physiopathology MH - Brain Ischemia/physiopathology/*therapy MH - Doublecortin Protein MH - Glial Cell Line-Derived Neurotrophic Factor/*metabolism MH - Infarction, Middle Cerebral Artery/physiopathology/therapy MH - Male MH - Neurons/physiology MH - Random Allocation MH - Rats MH - Rats, Wistar MH - Stem Cell Niche/physiopathology MH - Stroke/physiopathology/*therapy MH - Stromal Cells/*transplantation PMC - PMC3096459 MID - NIHMS288320 EDAT- 2010/05/15 06:00 MHDA- 2010/08/27 06:00 PMCR- 2011/05/17 CRDT- 2010/05/15 06:00 PHST- 2010/05/15 06:00 [entrez] PHST- 2010/05/15 06:00 [pubmed] PHST- 2010/08/27 06:00 [medline] PHST- 2011/05/17 00:00 [pmc-release] AID - 10.1002/glia.20988 [doi] PST - ppublish SO - Glia. 2010 Jul;58(9):1074-81. doi: 10.1002/glia.20988.