PMID- 22368049 OWN - NLM STAT- MEDLINE DCOM- 20120830 LR - 20230607 IS - 1531-8249 (Electronic) IS - 0364-5134 (Print) IS - 0364-5134 (Linking) VI - 71 IP - 6 DP - 2012 Jun TI - Synergistic effects of central nervous system-directed gene therapy and bone marrow transplantation in the murine model of infantile neuronal ceroid lipofuscinosis. PG - 797-804 LID - 10.1002/ana.23545 [doi] AB - OBJECTIVE: Infantile neuronal ceroid lipofuscinosis (INCL) is an inherited childhood neurodegenerative disorder caused by the loss of palmitoyl protein thioesterase-1 (PPT1) activity. Affected children suffer from blindness, epilepsy, motor dysfunction, cognitive decline, and premature death. The Ppt1(-/-) mouse shares the histological and clinical features of INCL. Previous single-therapy approaches using small molecule drugs, gene therapy, or neuronal stem cells resulted in partial histological correction, with minimal improvements in motor function or lifespan. Here, we combined central nervous system (CNS)-directed adeno-associated virus (AAV)2/5-mediated gene therapy with bone marrow transplantation (BMT) in the INCL mouse. METHODS: At birth, Ppt1(-/-) and wild-type mice were given either intracranial injections of AAV2/5-PPT1 or bone marrow transplantation, separately as well as in combination. To assess function, we measured rotorod performance monthly as well as lifespan. At terminal time points, we evaluated the therapeutic effects on several INCL-specific parameters, such as cortical thickness, autofluorescent accumulation, and glial activation. Finally, we determined levels of PPT1 enzyme activity and bone marrow engraftment in treated mice. RESULTS: AAV2/5-mediated gene therapy alone resulted in significant histological correction, improved motor function, and increased lifespan. Interestingly, the addition of BMT further increased the lifespan of treated mice and led to dramatic, sustained improvements in motor function. These data are truly striking, given that BMT alone is ineffective, yet it synergizes with CNS-directed gene therapy to dramatically increase efficacy and lifespan. INTERPRETATION: AAV2/5-mediated gene therapy in combination with BMT provides an unprecedented increase in lifespan as well as dramatic improvement on functional and histological parameters. CI - Copyright (c) 2012 American Neurological Association. FAU - Macauley, Shannon L AU - Macauley SL AD - Department of Internal Medicine, Washington University School of Medicine, 660 S. Euclid Ave., St Louis, MO 63110, USA. FAU - Roberts, Marie S AU - Roberts MS FAU - Wong, Andrew M AU - Wong AM FAU - McSloy, Francesca AU - McSloy F FAU - Reddy, Adarsh S AU - Reddy AS FAU - Cooper, Jonathan D AU - Cooper JD FAU - Sands, Mark S AU - Sands MS LA - eng GR - R01 NS043205/NS/NINDS NIH HHS/United States GR - NS056728/NS/NINDS NIH HHS/United States GR - GR079491MA/WT_/Wellcome Trust/United Kingdom GR - NS043105/NS/NINDS NIH HHS/United States GR - WT_/Wellcome Trust/United Kingdom GR - R44 NS043105/NS/NINDS NIH HHS/United States GR - R01 NS043205-09/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20120224 PL - United States TA - Ann Neurol JT - Annals of neurology JID - 7707449 RN - EC 3.1.2.- (Thiolester Hydrolases) RN - EC 3.1.2.22 (palmitoyl-protein thioesterase) SB - IM MH - Age Factors MH - Animals MH - Animals, Newborn MH - Bone Marrow Transplantation/*methods MH - Brain/metabolism/pathology MH - Dependovirus/genetics MH - Disease Models, Animal MH - Female MH - Genetic Therapy/*methods MH - Genetic Vectors/administration & dosage MH - Male MH - Mice MH - Mice, Knockout MH - Motor Activity MH - Neuronal Ceroid-Lipofuscinoses/pathology/physiopathology/*therapy MH - Rotarod Performance Test MH - Thiolester Hydrolases/*biosynthesis/deficiency/therapeutic use PMC - PMC3369009 MID - NIHMS353711 EDAT- 2012/03/01 06:00 MHDA- 2012/08/31 06:00 PMCR- 2013/06/01 CRDT- 2012/02/28 06:00 PHST- 2011/11/16 00:00 [received] PHST- 2011/12/16 00:00 [revised] PHST- 2012/01/13 00:00 [accepted] PHST- 2012/02/28 06:00 [entrez] PHST- 2012/03/01 06:00 [pubmed] PHST- 2012/08/31 06:00 [medline] PHST- 2013/06/01 00:00 [pmc-release] AID - 10.1002/ana.23545 [doi] PST - ppublish SO - Ann Neurol. 2012 Jun;71(6):797-804. doi: 10.1002/ana.23545. Epub 2012 Feb 24.