PMID- 17013619 OWN - NLM STAT- MEDLINE DCOM- 20070731 LR - 20220716 IS - 0014-4819 (Print) IS - 0014-4819 (Linking) VI - 177 IP - 4 DP - 2007 Mar TI - Time of transplantation and cell preparation determine neural stem cell survival in a mouse model of Huntington's disease. PG - 458-70 AB - Cell replacement therapies for neurodegenerative diseases, using multipotent neural stem cells (NSCs), require above all, a good survival of the graft. In this study, we unilaterally injected quinolinic acid (QA) into the striatum of adult mice and transplanted syngeneic NSCs of enhanced green fluorescent protein-transgenic mice into the lesioned striatum. The injection of QA leads to an excitotoxic lesion with selective cell death of the medium sized spiny neurons, the same cells that are affected in Huntington's disease. In order to investigate the best timing of transplantation for the survival of donor cells, we transplanted the stem cells at 2, 7 and 14 days after injury. In addition, the influence of graft preparation prior to transplantation, i.e., intact neurospheres versus dissociated cell suspension on graft survival was investigated. By far the best survival was found with the combination of early transplantation (i.e., 2 days after QA-lesion) with the use of neurospheres instead of dissociated cell suspension. This might be due to the different states of host's astrocytic and microglia activation which we found to be moderate at 2, but pronounced at 7 and 14 days after QA-lesion. We also investigated brain derived neurotrophic factor (BDNF)-expression in the striatum after QA-lesion and found no significant change in BDNF protein-level. We conclude that already the method of graft preparation of NSCs for transplantation, as well as the timing of the transplantation procedure strongly affects the survival of the donor cells when grafted into the QA-lesioned striatum of adult mice. FAU - Johann, Verena AU - Johann V AD - Department of Neurology, University Hospital RWTH, Pauwelsstr. 30, 52074 Aachen, Germany. FAU - Schiefer, Johannes AU - Schiefer J FAU - Sass, Christian AU - Sass C FAU - Mey, Jorg AU - Mey J FAU - Brook, Gary AU - Brook G FAU - Kruttgen, Alexander AU - Kruttgen A FAU - Schlangen, Christiane AU - Schlangen C FAU - Bernreuther, Christian AU - Bernreuther C FAU - Schachner, Melitta AU - Schachner M FAU - Dihne, Marcel AU - Dihne M FAU - Kosinski, Christoph M AU - Kosinski CM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20060930 PL - Germany TA - Exp Brain Res JT - Experimental brain research JID - 0043312 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Neurotoxins) RN - 0 (enhanced green fluorescent protein) RN - 147336-22-9 (Green Fluorescent Proteins) SB - IM MH - Animals MH - Brain Tissue Transplantation/*methods MH - Brain-Derived Neurotrophic Factor/metabolism MH - Cell Culture Techniques/methods MH - Cell Survival/physiology MH - Cells, Cultured MH - Corpus Striatum/cytology/physiology/transplantation MH - Denervation MH - Disease Models, Animal MH - Female MH - Gliosis/physiopathology/prevention & control MH - Graft Survival/*physiology MH - Green Fluorescent Proteins/genetics MH - Huntington Disease/*therapy MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Mice, Transgenic MH - Neurons/cytology/*physiology MH - Neurotoxins MH - Spheroids, Cellular/cytology/physiology/transplantation MH - Stem Cell Transplantation/*methods MH - Stem Cells/cytology/*physiology MH - Time Factors EDAT- 2006/10/03 09:00 MHDA- 2007/08/01 09:00 CRDT- 2006/10/03 09:00 PHST- 2006/04/01 00:00 [received] PHST- 2006/08/24 00:00 [accepted] PHST- 2006/10/03 09:00 [pubmed] PHST- 2007/08/01 09:00 [medline] PHST- 2006/10/03 09:00 [entrez] AID - 10.1007/s00221-006-0689-y [doi] PST - ppublish SO - Exp Brain Res. 2007 Mar;177(4):458-70. doi: 10.1007/s00221-006-0689-y. Epub 2006 Sep 30.