PMID- 21608078 OWN - NLM STAT- MEDLINE DCOM- 20111115 LR - 20211203 IS - 1549-4918 (Electronic) IS - 1066-5099 (Linking) VI - 29 IP - 7 DP - 2011 Jul TI - Combined effects of hematopoietic progenitor cell mobilization from bone marrow by granulocyte colony stimulating factor and AMD3100 and chemotaxis into the brain using stromal cell-derived factor-1alpha in an Alzheimer's disease mouse model. PG - 1075-89 LID - 10.1002/stem.659 [doi] AB - Transplantation of bone marrow-derived stem cells (BMSCs) has been suggested as a potential therapeutic approach to prevent neurodegenerative diseases, but it remains problematic due to issues of engraftment, potential toxicities, and other factors. An alternative strategy is pharmacological-induced recruitment of endogenous BMSCs into an injured site by systemic administration of growth factors or chemokines. Therefore, the aim of this study was to examine the effects of therapy involving granulocyte colony stimulating factor (G-CSF)/AMD3100 (CXCR4 antagonist) and stromal cell-derived factor-1alpha (SDF-1alpha) on endogenous BM-derived hematopoietic progenitor cell (BM-HPC) recruitment into the brain of an Alzheimer's disease (AD) mouse model. To mobilize BM-HPCs, G-CSF was injected intraperitoneally and boosted by AMD3100. Simultaneously, these mice received an intracerebral injection with SDF-1alpha to induce migration of mobilized BM-HPCs into brain. We found that the memory deficit in the AD mice was significantly improved by these treatments, but amyloid beta deposition was unchanged. Interestingly, microglial activation was increased with alternative activation of microglia to a neuroprotective phenotype. Furthermore, by generating an amyloid precursor protein/presenilin 1-green fluorescent protein (GFP) chimeric mouse, we ascertained that the GFP positive microglia identified in the brain were BM-derived. Additionally, increased hippocampal neurogenesis and improved memory was observed in mice receiving combined G-CSF/AMD3100 and SDF-1alpha, but not in controls or animals receiving each treatment alone. These results suggest that SDF-1alpha is an effective adjuvant in inducing migration into brain of the endogenous BM-HPCs, mobilized by G-CSF/AMD3100, and that the two can act synergistically to produce a therapeutic effect. This approach warrants further investigation as a potential therapeutic option for the treatment of AD patients in the future. CI - Copyright (c) 2011 AlphaMed Press. FAU - Shin, Ji-Woong AU - Shin JW AD - Stem Cell Neuroplasticity Research Group, Kyungpook National University, Daegu, Korea. FAU - Lee, Jong Kil AU - Lee JK FAU - Lee, Jeong Eun AU - Lee JE FAU - Min, Woo-Kie AU - Min WK FAU - Schuchman, Edward H AU - Schuchman EH FAU - Jin, Hee Kyung AU - Jin HK FAU - Bae, Jae-Sung AU - Bae JS LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Stem Cells JT - Stem cells (Dayton, Ohio) JID - 9304532 RN - 0 (Benzylamines) RN - 0 (Chemokine CXCL12) RN - 0 (Cyclams) RN - 0 (Heterocyclic Compounds) RN - 143011-72-7 (Granulocyte Colony-Stimulating Factor) RN - S915P5499N (plerixafor) SB - IM MH - Alzheimer Disease/*drug therapy/pathology MH - Animals MH - Benzylamines MH - Bone Marrow Cells/cytology/drug effects MH - Brain/*cytology/drug effects MH - Chemokine CXCL12/*administration & dosage MH - Chemotaxis/*drug effects MH - Cyclams MH - Disease Models, Animal MH - Granulocyte Colony-Stimulating Factor/*administration & dosage MH - Hematopoietic Stem Cell Mobilization/*methods MH - Hematopoietic Stem Cells/cytology/*drug effects MH - Heterocyclic Compounds/*administration & dosage MH - Mice MH - Mice, Inbred C57BL MH - Mice, Transgenic EDAT- 2011/05/25 06:00 MHDA- 2011/11/16 06:00 CRDT- 2011/05/25 06:00 PHST- 2011/05/25 06:00 [entrez] PHST- 2011/05/25 06:00 [pubmed] PHST- 2011/11/16 06:00 [medline] AID - 10.1002/stem.659 [doi] PST - ppublish SO - Stem Cells. 2011 Jul;29(7):1075-89. doi: 10.1002/stem.659.