PMID- 19277013 OWN - NLM STAT- MEDLINE DCOM- 20090629 LR - 20211109 IS - 1525-0024 (Electronic) IS - 1525-0016 (Print) IS - 1525-0016 (Linking) VI - 17 IP - 5 DP - 2009 May TI - Tolerance induction in experimental autoimmune encephalomyelitis using non-myeloablative hematopoietic gene therapy with autoantigen. PG - 897-905 LID - 10.1038/mt.2009.42 [doi] AB - Experimental autoimmune encephalomyelitis (EAE) constitutes a paradigm of antigen (Ag)-specific T cell driven autoimmune diseases. In this study, we transferred bone marrow cells (BMCs) expressing an autoantigen (autoAg), the peptide 40-55 of the myelin oligodendrocytic glycoprotein (MOG(40-55)), to induce preventive and therapeutic immune tolerance in a murine EAE model. Transfer of BMC expressing MOG(40-55) (IiMOG-BMC) into partially myeloablated mice resulted in molecular chimerism and in robust protection from the experimental disease. In addition, in mice with established EAE, transfer of transduced BMC with or without partial myeloablation reduced the clinical and histopathological severity of the disease. In these experiments, improvement was observed even in the absence of engraftment of the transduced hematopoietic cells, probably rejected due to the previous immunization with the autoAg. Splenocytes from mice transplanted with IiMOG-BMC produced significantly higher amounts of interleukin (IL)-5 and IL-10 upon autoAg challenge than those of control animals, suggesting the participation of regulatory cells. Altogether, these results suggest that different tolerogenic mechanisms may be mediating the preventive and the therapeutic effects. In conclusion, this study demonstrates that a cell therapy using BMC expressing an autoAg can induce Ag-specific tolerance and ameliorate established EAE even in a nonmyeloablative setting. FAU - Eixarch, Herena AU - Eixarch H AD - Centre de Teixits i Terapia Cel.lular, Banc de Sang i Teixits, Institut de Recerca Hospital Universitari Vall d'Hebron, Barcelona, Spain. FAU - Espejo, Carmen AU - Espejo C FAU - Gomez, Alba AU - Gomez A FAU - Mansilla, Maria Jose AU - Mansilla MJ FAU - Castillo, Mireia AU - Castillo M FAU - Mildner, Alexander AU - Mildner A FAU - Vidal, Francisco AU - Vidal F FAU - Gimeno, Ramon AU - Gimeno R FAU - Prinz, Marco AU - Prinz M FAU - Montalban, Xavier AU - Montalban X FAU - Barquinero, Jordi AU - Barquinero J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20090310 PL - United States TA - Mol Ther JT - Molecular therapy : the journal of the American Society of Gene Therapy JID - 100890581 RN - 0 (Autoantigens) RN - 0 (Interleukin-5) RN - 0 (Myelin-Associated Glycoprotein) RN - 130068-27-8 (Interleukin-10) SB - IM EIN - Mol Ther. 2009 Jul;17(7):1303 EIN - Mol Ther. 2009 Jul;17(7):1303. PMID: 28178479 MH - Animals MH - Autoantigens/*immunology MH - Bone Marrow Cells MH - Bone Marrow Transplantation MH - Encephalomyelitis, Autoimmune, Experimental/*immunology/*therapy MH - Female MH - Flow Cytometry MH - Genetic Therapy/*methods MH - Genetic Vectors MH - Immune Tolerance/*immunology MH - Interleukin-10/metabolism MH - Interleukin-5/metabolism MH - Mice MH - Mice, Inbred C57BL MH - Myelin-Associated Glycoprotein/immunology MH - Retroviridae PMC - PMC2835141 EDAT- 2009/03/12 09:00 MHDA- 2009/06/30 09:00 PMCR- 2010/05/01 CRDT- 2009/03/12 09:00 PHST- 2009/03/12 09:00 [entrez] PHST- 2009/03/12 09:00 [pubmed] PHST- 2009/06/30 09:00 [medline] PHST- 2010/05/01 00:00 [pmc-release] AID - S1525-0016(16)31790-7 [pii] AID - 10.1038/mt.2009.42 [doi] PST - ppublish SO - Mol Ther. 2009 May;17(5):897-905. doi: 10.1038/mt.2009.42. Epub 2009 Mar 10.