PMID- 19322031 OWN - NLM STAT- MEDLINE DCOM- 20090904 LR - 20211020 IS - 1226-3613 (Print) IS - 1226-3613 (Linking) VI - 41 IP - 7 DP - 2009 Jul 31 TI - Growth factor-expressing human neural progenitor cell grafts protect motor neurons but do not ameliorate motor performance and survival in ALS mice. PG - 487-500 LID - 10.3858/emm.2009.41.7.054 [doi] AB - Neural progenitor cells (NPs) have shown several promising benefits for the treatment of neurological disorders. To evaluate the therapeutic potential of human neural progenitor cells (hNPs) in amyotrophic lateral sclerosis (ALS), we transplanted hNPs or growth factor (GF)-expressing hNPs into the central nervous system (CNS) of mutant Cu/Zn superoxide dismutase (SOD1(G93A)) transgenic mice. The hNPs were engineered to express brain-derived neurotrophic factor (BDNF), insulin-like growth factor-1 (IGF-1), VEGF, neurotrophin-3 (NT-3), or glial cell-derived neurotrophic factor (GDNF), respectively, by adenoviral vector and GDNF by lentiviral vector before transplantation. Donor-derived cells engrafted and migrated into the spinal cord or brain of ALS mice and differentiated into neurons, oligodendrocytes, or glutamate transporter-1 (GLT1)-expressing astrocytes while some cells retained immature markers. Transplantation of GDNF- or IGF-1-expressing hNPs attenuated the loss of motor neurons and induced trophic changes in motor neurons of the spinal cord. However, improvement in motor performance and extension of lifespan were not observed in all hNP transplantation groups compared to vehicle-injected controls. Moreover, the lifespan of GDNF-expressing hNP recipient mice by lentiviral vector was shortened compared to controls, which was largely due to the decreased survival times of female animals. These results imply that although implanted hNPs differentiate into GLT1-expressing astrocytes and secrete GFs, which maintain dying motor neurons, inadequate trophic support could be harmful and there is sexual dimorphism in response to GDNF delivery in ALS mice. Therefore, additional therapeutic approaches may be required for full functional recovery. FAU - Park, Sungju AU - Park S AD - Department of Pediatrics, Yonsei University College of Medicine, Seoul 120-752, Korea. FAU - Kim, Hyoung-Tae AU - Kim HT FAU - Yun, Seokkwan AU - Yun S FAU - Kim, Il-Sun AU - Kim IS FAU - Lee, Jiyoon AU - Lee J FAU - Lee, Il-Shin AU - Lee IS FAU - Park, Kook In AU - Park KI LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Exp Mol Med JT - Experimental & molecular medicine JID - 9607880 RN - 0 (Excitatory Amino Acid Transporter 2) RN - 0 (Nerve Growth Factors) RN - 0 (SOD1 protein, human) RN - 0 (VEGFA protein, human) RN - 0 (Vascular Endothelial Growth Factor A) RN - EC 1.15.1.1 (Sod1 protein, mouse) RN - EC 1.15.1.1 (Superoxide Dismutase) RN - EC 1.15.1.1 (Superoxide Dismutase-1) SB - IM MH - Adenoviridae/genetics MH - Amyotrophic Lateral Sclerosis/metabolism/mortality/*therapy MH - Animals MH - Astrocytes/metabolism MH - Brain/*embryology MH - Cell Differentiation MH - Disease Models, Animal MH - Excitatory Amino Acid Transporter 2/metabolism MH - Female MH - Fetal Stem Cells/*metabolism MH - Genetic Vectors MH - Humans MH - Immunoenzyme Techniques MH - Male MH - Mice MH - Mice, Transgenic MH - Motor Neurons/*physiology MH - Nerve Growth Factors/*metabolism MH - *Stem Cell Transplantation MH - Superoxide Dismutase/genetics MH - Superoxide Dismutase-1 MH - Transfection MH - Vascular Endothelial Growth Factor A/genetics/metabolism PMC - PMC2721146 EDAT- 2009/03/27 09:00 MHDA- 2009/09/05 06:00 PMCR- 2009/07/31 CRDT- 2009/03/27 09:00 PHST- 2009/03/27 09:00 [entrez] PHST- 2009/03/27 09:00 [pubmed] PHST- 2009/09/05 06:00 [medline] PHST- 2009/07/31 00:00 [pmc-release] AID - 10.3858/emm.2009.41.7.054 [doi] PST - ppublish SO - Exp Mol Med. 2009 Jul 31;41(7):487-500. doi: 10.3858/emm.2009.41.7.054.