alexa The Role of Immunosuppression in the Transplantation of Allogenic Neural Precursors Derived from Human Pluripotent Stem Cells for Parkinson ’ s Disease
ISSN: 2157-7633

Journal of Stem Cell Research & Therapy
Open Access

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Research Article

The Role of Immunosuppression in the Transplantation of Allogenic Neural Precursors Derived from Human Pluripotent Stem Cells for Parkinson ’ s Disease

Casimir de Rham1, Vannary Tieng2, Benjamin B Tournier3, Yannick Avila1, Nathalie Ginovart3, Karl-Heinz Krause2, Olivier Preynat-Seauve2, Michel Dubois-Dauphin2 and Jean Villard1*

1Transplant Immunology Unit, Division of Immunology and Allergy, Division of Laboratory medicine, Department of Medicine Geneva, Switzerland

2Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Switzerland

3Department of Psychiatry, Faculty of Medicine, University of Geneva, Switzerland

Corresponding Author:
Jean Villard, MD, PhD
Transplant Immunology Unit
Geneva University Hospital
4, rue Gabrielle Perret-Gentil
1211 Geneva 14, Switzerland
Tel: +4122 3729394/+4179 5533409
Fax: +41 22 3729390
E-mail: [email protected]

Received Date: November 21, 2013; Accepted Date: December 18, 2013; Published Date: December 20, 2013

Citation: de Rham C, Tieng V, Tournier BB, Avila Y, Ginovart N, et al. (2013) The Role of Immunosuppression in the Transplantation of Allogenic Neural Precursors Derived from Human Pluripotent Stem Cells for Parkinson’s Disease. J Stem Cell Res Ther S6:006. doi:10.4172/2157-7633.S6-006

Copyright: © 2013 de Rham C, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Objective: Neural progenitor cells (NPC) derived from human embryonic stem cells have the potential to differentiate into mature neurons after transplantation in the brain, opening the possibility of regenerative cell therapy for neurodegenerative disorders like Parkinson’s disease. For such therapy, the source of NPC is genetically unrelated to the patient, leading to potential rejection of the transplanted cells by the host’s immune response. Rejection can be prevented by the use of immunosuppressive drugs (ISD). Previous works have suggested that cyclosporine and dexamethasone used in classical immunosuppressive regimen could prevent the terminal differentiation of NPC into mature neurons depending on culture conditions. Methods: We have investigated in vitro the role of other ISD, Intra venous Immunoglobulins (IvIG), mycophenolate mofetil and tacrolimus. We have tested the immunosuppressive activity of tacrolimus and cyclosporine on the effector of natural killer (NK) and CD8+T-cells and performed a microarray to analyse the difference between the two drugs for the neuron differentiation. Finally, human transplanted neuroprecursor cell survival has been analyzed in rats treated with tacrolimus or cyclosporine and anti-inflammatory treatments. Results: IvIG and mycophenolate mofetil interfere with the development of NPC into mature neurons, but tacrolimus do not inhibit the maturation process of NPC. Microarray experiments demonstrate significant differences between cyclosporine and tacrolimus gene expression during NPC maturation into mature neurons. Tacrolimus like cyclosporine is able to inhibit the CD8+T-cells activation against neural progenitors, but both are unable to block NK cells activity. NK cells could be potential harmful weapons to reject NPC and mature neurons. In rats treated with both immunosuppressive (tacrolimus or cyclosporine) and anti-inflammatory treatments, engrafted human neuroprecursors cell survival is good and the microglial density is low. Conclusion: These data suggest in vivo that both tacrolimus and cyclosporine, with an

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