Articles tagged "Tolerance"

2016 American Transplant Congress
C5a Induces CSF1-Dependent Regulatory Macrophage (Mreg) Development Required for Murine Allograft Tolerance.
I. Llaudo, P. Conde, J. Ochando, P. Heeger.
Icahn School of Medicine at Mount Sinai, New York, NY.
Anti-CD40L (MR1) induced heart transplant tolerance has been recently shown to be dependent on early post-transplant intragraft accumulation of CD11b+Ly6CLoLy6G- DC-SIGN expressing Mreg that develop…
2016 American Transplant Congress
Developing a PCR-Based System to Access the Correlation of Local Chimerism and Fate of the Vascularized Composite Allotransplant.
X.-T. Huang,¹ H.-Y. Cheng,¹ C.-F. Lin,¹ S.-S. Qiu,² L.-Y. Shih,¹ F.-C. Wei.^1,2,3
¹Center for Vascularized Composite Allotransplantation, Chang Gung Memorial Hospital, Gueishan, Taoyuan, Taiwan; ²Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Gueishan, Taoyuan, Taiwan; ³College of Medicine, Chang Gung University, Gueishan, Taoyuan, Taiwan.
It is established that development of mixed chimerism following allotransplantation is associated with induction of tolerance to allotransplants. Although chimerism in peripheral blood can be…
2016 American Transplant Congress
The Function of CD8⁺TCR^– Facilitating Cells and Regulatory T Cells Is Impaired in Flt3-Ligand Knockout Mice.
Y. Huang, H. Xu, T. Miller, Y. Wen, S. Ildstad.
Institute for Cellular Therapeutics, University of Louisville, Louisville, KY.
Graft CD8+TCR- facilitating cells (FC) enhance engraftment of hematopoietic stem cells (HSC) in allogeneic mouse recipients without causing graft-versus-host disease. FC induce antigen-specific CD4+CD25+FoxP3+ regulatory…
2016 American Transplant Congress
Impact of Mixed Xenogeneic Porcine Hematopoietic Chimerism on Human NK Cell Recognition in a Humanized Mouse Model.
H. Li,¹ P. Vishwasrao,^1,2 M. Holzl,¹ S. Chen,¹ G. Choi,^2,3 G. Zhao,¹ M. Sykes.¹
¹Columbia Center for Translational Immunology, Columbia University, New York, NY; ²Department of Hematology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands; ³Department of Hematology, University Medical Center Groningen, Groningen, Netherlands.
Xenotransplantation is a potential solution for the shortage of organs for transplantation. However, potent xenograft rejection responses present a formidable barrier. Mixed xenogeneic hematopoietic chimerism…
2016 American Transplant Congress
Enhanced IL-6 Production Impedes Transplant Tolerance Induction in Lupus-Prone Mice.
B. Stocks, C. Wilson, M. Seto, A. Marshall, D. Moore.
Pediatrics and Pathology, Microbiology, and Immunology, Vanderbilt University, Nashville, TN.
Significance: Autoimmunity is a significant barrier to transplantation. Based on previous studies, it is apparent that there are separate genetic regions that control susceptibility to…
2016 American Transplant Congress
Modification of DC Phenotype and Function via Targeted Porous Silicon Nanoparticles.
S. Stead,¹ S. McInnes,² S. Kireta,³ P. Rose,¹ D. Rojas-Canales,³ S. Jesudason,³ S. Grey,⁴ R. Carroll,³ N. Voelcker,² P. Coates.^1,3
¹School of Medicine, University of Adelaide, Adelaide, Australia; ²Future Industries Institute, University of South Australia, Adelaide, Australia; ³CNARTS, Royal Adelaide Hospital, Adealide, Australia; ⁴Transplantation Immunology, Garvan Institute of Medical Research, Sydney, Australia.
Aims: Dendritic cells (DC) are the most potent antigen-presenting cell and are fundamental in the establishment of transplant tolerance. Targeting DC via the DC-SIGN receptor…
2016 American Transplant Congress
Membrane Proteome Profiling Reveals Molecular Changes Associated with Donor-Specific Tolerance to Vascularized Composite Allotransplants.
H.-Y. Cheng,¹ C.-L. Han,² F.-W. Jiang,² L.-Y. Shih,¹ C.-F. Lin,¹ Y.-J. Chen,³ F.-C. Wei.^1,4
¹Center for Vascularized Composite Allotransplantation, Chang Gung Memorial Hospital, Gueishan, Taoyuan, Taiwan; ²Master Program for Pharmacogenomics and Pharmacoproteomics, Taipei Medical University, Taipei, Taiwan; ³Institute of Chemistry, Academia Sinica, Taipei, Taiwan; ⁴College of Medicine, Chang Gung University, Gueishan, Taoyuan, Taiwan.
Background: although donor-specific tolerance to vascularized composite allotransplants (VCAs) has been successfully induced with different regimes, molecular changes associated with tolerance are not well understood.Materials…
2016 American Transplant Congress
CD8⁺TCR^– Facilitating Cells in Mobilized Peripheral Blood Mononuclear Cells Are Enriched with IL-10 Producing B Cells.
Y. Wen, E. Yolcu, Y. Huang, L. Kahn, S. Ildstad.
Institute for Cellular Therapeutics, University of Louisville, Louisville, KY.
We recently reported that facilitating cell (FC) enriched hematopoietic progenitor stem cell (HSPC) allografts (FCRx) induced tolerance without graft-versus-host disease (GVHD) or engraftment syndrome in…
2016 American Transplant Congress
Vascularized Composite Allograft Tolerance with Transient High-Dose Tacrolimus Across a Full MHC Mismatch in a Large Animal Model.
H. Wang, E. Swanson, H.-T. Cheng, J. Walch, J. Alonso-Esclante, K. Kolegraff, J. Lopez, G. Furtmuller, B. Oh, A. Quan, J. Budihardjo, S. AlFadil, S. Mulla, P. Akre, J. Sacks, S. Bonawitz, G. Raimondi, J. Shores, D. Cooney, W. Lee, G. Brandacher.
Department of Plastic Surgery, Johns Hopkins University, Baltimore, MD.
PURPOSE: Vascularized composite allografts (VCA) can enhance the quality of life of patients with severe facial or extremity injuries, and the induction of tolerance would…
2016 American Transplant Congress
IL-2 Therapy Restores the Impaired Function of Regulatory T Cells Induced by Calcineurin Inhibitors in Liver Transplantation.
G. Whitehouse, E. Gray, S. Mastoridis, E. Kodela, A. Sanchez-Fueyo, M. Martinez-Llordella.
Liver Science Department, King's College London, London, United Kingdom.
CD4+CD25+FOXP3+ regulatory T cells (Tregs) have an essential role in immune regulation and constitute a key target for cellular immunotherapies in transplantation. IL-2 is critical…