PMID- 11312606 OWN - NLM STAT- MEDLINE DCOM- 20010712 LR - 20121115 IS - 1044-7431 (Print) IS - 1044-7431 (Linking) VI - 17 IP - 4 DP - 2001 Apr TI - Sustained effects of gene-activated matrices after CNS injury. PG - 706-16 AB - We show that when gene-activated matrices (GAM) are placed between the proximal and distal stumps of severed rat optic nerves, DNA is retained within the GAM, promoting sustained transgene expression in the optic nerve, in the GAM itself, and, more importantly, in axotomized retinal ganglion cells (RGC). Plasmids that encode basic fibroblast growth factor (FGF2), brain-derived neurotrophic factor (BDNF), and neurotrophin-3 (NT3) promote sustained survival of RGC for over 3 months after the initial injury. These findings suggest that immobilized DNA implanted into a CNS lesion will be delivered by axon terminal uptake and retrograde transport to axotomized neurons. GAM may therefore be a useful agent for promoting sustained neuron survival and axon regeneration. Whether further optimization of the matrices, plasmids, promoters, and genes present in the GAM will promote even more survival or, alternatively, axon regeneration remains to be determined. CI - Copyright 2001 Academic Press. FAU - Berry, M AU - Berry M AD - Centre for Neuroscience, Neural Damage and Repair, GKT (Guy's Campus), Hodgkin Building, London Bridge, London, SE1 1UL, United Kingdom. FAU - Gonzalez, A M AU - Gonzalez AM FAU - Clarke, W AU - Clarke W FAU - Greenlees, L AU - Greenlees L FAU - Barrett, L AU - Barrett L FAU - Tsang, W AU - Tsang W FAU - Seymour, L AU - Seymour L FAU - Bonadio, J AU - Bonadio J FAU - Logan, A AU - Logan A FAU - Baird, A AU - Baird A LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Mol Cell Neurosci JT - Molecular and cellular neurosciences JID - 9100095 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Neurotrophin 3) RN - 103107-01-3 (Fibroblast Growth Factor 2) SB - IM MH - Animals MH - Axotomy MH - Brain-Derived Neurotrophic Factor/genetics MH - Cell Line MH - Cell Survival/physiology MH - Cricetinae MH - Female MH - Fibroblast Growth Factor 2/*genetics MH - Gene Expression Regulation/*physiology MH - Genetic Therapy/*methods MH - Kidney/cytology MH - Neurotrophin 3/genetics MH - Optic Nerve/cytology/*physiology MH - Optic Nerve Injuries/*therapy MH - Plasmids MH - Rats MH - Rats, Wistar MH - Retinal Ganglion Cells/cytology/physiology MH - Transfection/methods EDAT- 2001/04/21 10:00 MHDA- 2001/07/13 10:01 CRDT- 2001/04/21 10:00 PHST- 2001/04/21 10:00 [pubmed] PHST- 2001/07/13 10:01 [medline] PHST- 2001/04/21 10:00 [entrez] AID - S1044-7431(01)90975-3 [pii] AID - 10.1006/mcne.2001.0975 [doi] PST - ppublish SO - Mol Cell Neurosci. 2001 Apr;17(4):706-16. doi: 10.1006/mcne.2001.0975.