ATC Abstracts

American Transplant Congress abstracts

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  • 2016 American Transplant Congress

    Direct IL-33 Stimulation of T Regulatory Cells via Suppression of Tumorigenicity 2 (ST2) Is Required for Effective Control of Alloimmune Responses.

    X. Zhang,1,3 B. Matta,1 D. Reichenbach,2 B. Blazar,2 H. Turnquist.1

    1Dept of Surgery, Starzl Transplantation Inst, Pittsburgh, PA; 2Dept of Pediatrics, Univ of Minnesota, Minneapolis, MN; 3Xiangya School of Medicine, Central South University, Changsha, Hunan, China.

    Background: IL-33 is a pleotropic cytokine that can protect against cardiac transplant rejection by expanding regulatory T cells (Treg), particularly a Treg subset expressing the…
  • 2016 American Transplant Congress

    High PD-L1/CD86 MFI Ratio and IL-10 Secretion Characterize Maturation-Resistant Human Regulatory Dendritic Cells (DCregs) Generated for Clinical Testing in Transplantation.

    A. Zahorchak,1 L. Butterfield,2,3 C. Macedo,1 D. Hamm,4 D. Metes,1,3 A. Thomson.1,3

    1Surgery, Thomas E. Starzl Transplantation Institute, Pittsburgh; 2Medicine, University of Pittsburgh, Pittsburgh; 3Immunology, University of Pittsburgh, Pittsgurgh; 4Adaptive Biotech, Seattle.

    Regulatory dendritic cells (DCregs) have shown considerable potential for safe and effective prolongation of allograft survival in pre-clinical models. In humans, DCregs with purity >84%…
  • 2016 American Transplant Congress

    Belatacept Does Not Inhibit Plasmablast Formation Supported by Follicular T Helper Cells, but Favors the Development of Transitional Regulatory B Cells in Kidney Transplant Patients.

    G. de Graav, D. Hesselink, M. Dieterich, R. Kraaijeveld, W. Weimar, C. Baan.

    Internal Medicine, Section Transplantation and Nephrology, Erasmus University Medical Center, Rotterdam, South Holland, Netherlands.

    Since the costimulatory inhibitor belatacept effectively blocks T-B cell interaction in animal transplant models, we studied the functional follicular T helper cells (TFH)-B cell interaction…
  • 2016 American Transplant Congress

    Rapamycin Nanotherapy Delays Heart Transplant Rejection.

    M. Braza,1 M. Lameijer,1 C. Perez-Medina,1 T. Reiner,3 M. Nahrendorf,4 Z. Fayad,1 R. Duivenvoorden,1 J. Ochando,2 W. Mulder.1

    1Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York; 2Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York; 3Radiology, Memorial Sloan-Kettering Cancer Center, New York; 4Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston.

    Background:In patients, allograft survival requires a cocktail of immunosuppressive drugs, while experimentally antibodies targeting the innate immune system have been shown to induce long-term tolerance,…
  • 2016 American Transplant Congress

    Prior Infection or Colonization with Carbapenem-Resistant Enterobacteriaceae Is Not an Absolute Contraindication for Solid Organ Transplantation.

    S. Huprikar,1 L. Casner,1 S. Pouch,2 M. Pinheiro Freire,3 R. Madan,4 E. Kwak,5 M. Satlin,6 P. Hartman,7 L. Pisney,8 P. Henrique Mourão,9 R. La Hoz,10 G. Patel.1

    1Mount Sinai, New York; 2Ohio State, Columbus; 3Sao Paulo University, Sao Paulo, Brazil; 4Albert Einstein, Bronx; 5University of Pittsburgh, Pittsburgh; 6Cornell, New York; 7Henry Ford Health System, Detroit; 8University of Colorado, Denver; 9Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; 10UT Southwestern, Dallas.

    BackgroundCarbapenem-resistant Enterobacteriaceae (CRE) infection is associated with poor outcomes after solid organ transplantation (SOT). The significance of CRE colonization or infection prior to SOT is…
  • 2016 American Transplant Congress

    Probability, Risk Factors, and Long-Term Outcomes of Biliary Complications After Hepatic Artery Thrombosis in Adult Liver Transplant Recipients: 20 Years Experience from a Single Center.

    M. Fujiki, K. Hashimoto, T. Diago, C. Quintini, F. Aucejo, D. Kelly, B. Eghtesad, J. Fung, C. Miller.

    General Surgery, Cleveland Clinic, Cleveland, OH.

    Hepatic artery thrombosis (HAT) after liver transplantation (LT) is a devastating complication associated with ischemic biliary cholangiopathy (IBC) that can occur even after successful revascularization.…
  • 2016 American Transplant Congress

    DNA Methylation Patterns and Association with Graft Injury Severity Post Liver Transplantation.

    R. Gehrau, S. Bontha, V. Mas, D. Maluf.

    UVA, Charlottesville.

    Background: Epigenetics modifications in the graft may influence injury severity and function post liver transplantation (LT). This study aimed to interrogate the effect of different…
  • 2016 American Transplant Congress

    Long-Term Outcomes of ATG versus IL-2 Receptor Antagonist in Low Risk Kidney Transplant Recipients: Donor Factors.

    F. Al Ammary, S. Bae, A. Massie, N. Desai, N. Dagher, E. Kraus, A. Wiseman, D. Segev.

    JHU, Baltimore; CU, Denver.

    Controversy exists regarding the optimal choice of induction therapy in low-risk kidney transplant (KT) recipients. Current guidelines specify induction choices in KT based on recipient…
  • 2016 American Transplant Congress

    Investigating Geographic Variation in the Number of Deceased Donor Transplants Performed in the U.S.

    R. Carrico, D. Stewart, R. Ehrensberger, B. Shepard, D. Klassen.

    UNOS, Richmond, VA.

    Background: In 2014 the number of deceased donor transplants (DDT) increased greatly compared to the period from 2005 to 2013 when there were minimal changes…
  • 2016 American Transplant Congress

    Efficacy and Safety of Direct Antiviral Agents (DAA)-Based Therapies for Hepatitis C Virus (HCV) Infection in Kidney Transplant (KT) Recipients.

    M. Fernandez Ruiz,1 A. García Santiago,2 N. Polanco Fernandez,2 R. Muñoz,3 A. Hernandez,2 E. González Monte,2 V. Mercado,2 I. Fernández,3 J. Aguado,1 M. Praga,2 A. Andrés.2

    1Unit of Infectious Diseases, Hospital Universitario “12 de Octubre”, Madrid, Spain; 2Nephrology, Hospital Universitario “12 de Octubre”, Madrid, Spain; 3Gastroenterology, Hospital Universitario “12 de Octubre”, Madrid, Spain.

    Background: The use of interferon-based regimens for HCV infection in KT recipients is limited due to the increased risk of acute graft rejection (AR), poor…
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