Articles tagged "Alloantigens"

2017 American Transplant Congress
Liver Targeted Expression of a Single Allogeneic MHC I Molecule Promotes Tolerance to Pancreatic Islet Allograft by Inducing Specific CD8+ Regulatory T Cells in Mice.
V. Le Guen,^1,2 J.-P. Judor,^1,2 V. Gauttier,^1,2 N. Ferry,³ J.-P. Soulillou,^1,2 S. Brouard,^1,2 S. Conchon.^1,2
¹Centre de Recherche en Transplantation et Immunologie UMR1064, INSERM, Université de Nantes, Nantes, France; ²Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France; ³Département de Thérapie Cellulaire, CHU Saint Louis, Paris, France
A. Induction of donor-specific immune tolerance is a good alternative to chronic life-long immunosuppression for transplant patients. Donor major histocompatibility complex (MHC) molecules represent the…
2017 American Transplant Congress
Functional Mystacial Pad Allograft Tolerance Induced and Maintained by Vascularized Bone Marrow Transplant.
C.-H. Lin,^1,2 M. Anggelia,^1,2 C.-J. Wen,¹ W.-Y. Chuang,³ H.-Y. Cheng,¹ C.-H. Lin,^1,2 G. Brandacher.⁴
¹Department of PRS, Center for Vascularized Composite Allotransplantation, Chang Gung Memorial Hospital, Taoyuan, Taiwan; ²Chang Gung Medical College and Chang Gung University, Taoyuan, Taiwan; ³Department of Pathology, Chang Gung Memorial Hospital, Taoyuan, Taiwan; ⁴Department of Plastic and Reconstructive Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
Background: Accumulating findings indicate that vascularized bone marrow (VBM) transplantation plays a critical role to promote tolerance of vascularized composite allografts (VCA) without life-long immunosuppression.…
2017 American Transplant Congress
Exosomes Containing IL35 Are Secreted by Donor-Specific Regulatory T Cells and Cause Linked-Suppression.
Y. Tomita,¹ W. Bracamonte-Baran,¹ E. Jankowska-Gan,¹ Q. Zhang,² D. Vignali,² W. Burlingham.¹
¹Surgery, Transplant Division, University of Wisconsin-Madison, Madison, WI; ²Immunology, University of Pittsburgh, Pittsburgh
Introduction: We previously reported that donor specific splenocytes transfusion (DST) plus anti-CD40L costimulatory blockade treatment causes allo-specific regulation approximately 5 weeks after the tolerization. The…
2016 American Transplant Congress
Exosomes with Lung Associated Self-Antigens (Collagen V and K alpha 1 Tubulin): Role in Rejection Following Human Lung Transplantation.
M. Gunasekaran,^1,2 Z. Xu,^1,2 D. Nayak,^1,2 M. Sharma,^1,2 R. Hachem,¹ T. Mohanakumar.^1,2
¹Surgery, Pathology & Immunology, & Medicine, Washington Univ Sch Med, St. Louis, MO; ²Norton Thoracic Institute - St. Joseph's Hospital, Phoenix, AZ.
Immune response to HLA and non-HLA antigens play a significant role in the development of chronic and acute rejection (AR), bronchiolitis obliterans syndrome (BOS), following…
2016 American Transplant Congress
The Property of Modulatory T Cells Generated by Mixed Lymphocyte Culture with CD154 Blockade.
K. Hotta, T. Oura, B. Cosimi, T. Kawai.
Center for Transplantation Science, Massachusetts General Hospital, Boston, MA.
Background:Regulatory T cell (Treg) immunotherapy has been applied to minimize the immunosuppressive drugs in clinical transplantation. To avoid contamination of CD4+CD25- T cells, only highly…
2016 American Transplant Congress
End-Stage Renal Disease Does Not Impair the Large-Scale Generation of Potent Alloantigen-Specific Regulatory T Cells for Immunotherapy.
N. Litjens, K. Boer, J. Zuijderwijk, M. Klepper, A. Peeters, W. Verschoor, R. Kraaijeveld, C. Baan, M. Betjes.
Internal Medicine, Nephrology and Transplantation, Erasmus University Medical Centre, Rotterdam, Netherlands.
Background Alloantigen-specific natural occurring regulatory T cells (nTregs) have the potential to offer a more targeted approach of immunosuppression and are the cell type of…
2016 American Transplant Congress
B Lymphocyte-Induced Maturation Protein-1 Promotes Allograft Survival via Modulation of T Cell Development.
A. Wang,¹ C. Loh,^1,3,4 S.-J. Chen,² C.-H. Lin,¹ H.-K. Sytwu,² S.-H. Chuang,¹ F.-C. Wei.^1,4
¹VCA; PRS Dept., CGMH, Taoyuan, Taiwan; ²Department of Microbiology and Immunology, NDMC, Taipei, Taiwan; ³Division of Surgery and Interventional Science, University College London, London, United Kingdom; ⁴College of Medicine, Chang Gung University, Taoyuan, Taiwan.
*Equal contributionPurposeVascularized composite allotransplantation (VCA) is a promising new field in plastic surgery. Skin is known to be the most immunogenic component of a composite…
2016 American Transplant Congress
Tissue Priming of Plasmacytoid Dendritic Cells Enhances Their Phagocytosis and Lowers the Threshold for Subsequent Toll-Like Receptor 7/9 Activation.
J. Ruben,¹ G. Garcia-Romo,¹ E. Breman,¹ S. van der Kooij,¹ A. Redeker,² R. Arens,² C. van Kooten.¹
¹Nephrology, Leiden University Medical Centre, Leiden, Netherlands; ²Immunohematology and Blood Transfusion, Leiden University Medical Centre, Leiden, Netherlands.
Plasmacytoid dendritic cells (pDC) have a pivotal role in clearing viral infections, and can regulate tolerance or immunity depending on their activation status. We have…
2016 American Transplant Congress
Natural Killer Cells Display Functional and Receptor Diversity in Response to Alloantigen.
O. Hatton,¹ T. Shawler,¹ C. Blish,² O. Martinez,¹ S. Krams.¹
¹Division of Abdominal Transplantation, Dept. of Surgery, Stanford University, Stanford; ²Dept of Medicine, Stanford University, Stanford.
Natural killer (NK) cells play an important role in the first-line defense against tumor and virus-infected cells. Although “missing-self” suggests NK cells would target foreign…
2016 American Transplant Congress
Ex Vivo Expansion and Functional Characterization of Human Alloantigen-Specific Regulatory T Cells.
J. Mathew,¹ S. McEwen,¹ I. Konieczna,¹ X. Huang,¹ J. He,¹ R. Kornbluth,² J. Miller,¹ L. Gallon,¹ J. Leventhal.¹
¹Surgery - Comprehensive Transplant Center, Northwestern University, Chicago, IL; ²Multimeric Biotherapeutics, Inc, La Jolla, CA.
Purpose: Regulatory T cells (Tregs) have been associated with clinical transplant tolerance and they have been shown to prolong graft survival in animal models without…