ATC Abstracts

American Transplant Congress abstracts

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Articles tagged "T cell activation"

  • 2017 American Transplant Congress

    The Inhibitory Effect of Plasma on T Cell Activation: Possible Role of Plasma Exchange in Anti Rejection Therapy.

    A. Assounga,1,2 S. Omarjee.1

    1Dept Nephrology, University of KwaZulu-Natal, Durban, South Africa; 2Inkosi Albert Luthuli Central Hospital, Durban, South Africa

    Reduction of lymphocyte proliferation by human plasma has been previously reported. Reduced activation of lymphocytes of patients on immunosuppressive drugs is well documented.Aim: To compare…
  • 2017 American Transplant Congress

    A Single Skin Commensal Strain Is Sufficient to Accelerate Skin Transplant Rejection.

    Y. Lei,1 L. Chen,1 Y. Wang,1 A. Chong,1 Y. Belkaid,2 M.-L. Alegre.1

    1Departments of Medicine and Surgery, University of Chicago, Chicago, IL; 2Immunity at Barrier Sites Initiative, NIAID, NIH, Bethesda

    The kinetics of graft rejection depend mostly on the extent of genetic disparities between organ donor and recipient, but appreciation that environmental factors may also…
  • 2017 American Transplant Congress

    Effective Thrombolytic Therapy of Hepatic Artery Thrombosis After Liver Transplantation – A Single-Center Experience.

    M. Chen,1 X. Lin,2 W. Ju,1 D. Wang,1 Y. Ma,1 L. Wu,1 X. He,1 G. Chen.1

    1Organ Transplant Center, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China; 2Department of Thyroid and Breast Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China

    BACKGROUND: Hepatic artery thrombosis (HAT) is a common complication of liver transplantation which causes lots of graft loss. The anastomoses of hepatic artery requires delicate…
  • 2016 American Transplant Congress

    Molecular Significance of Microvascular Inflammation and C4d Negative Transplant Glomerulopathy.

    M. Lubetzky,1 P. O Broin,2 Y. Bao,1 E. Akalin.1

    1Transplantation, Albert Einstein College of Medicine, Bronx; 2School of Mathematics, Statistics & Applied Mathematics, National University of Ireland Galway University, Galway, Ireland.

    Background: Transplant glomerulopathy (TGP) is frequently found in the setting of chronic antibody mediated rejection along with microvascular inflammation (MVI) (peritubular capillaritis+glomerulitis score > 1)…
  • 2016 American Transplant Congress

    Cytometric Deep Profiling of the CD8+ T-Cell Compartment in Transplant Patients with CMV Viremia.

    V. Ferreira, D. Kumar, S. Husain, M. Bhat, P. Ashton, A. Humar.

    UHN, Toronto, Canada.

    Background: Cytomegalovirus (CMV) infection is a common opportunistic viral infection in transplant patients. Patterns of viremia and relapse are influenced by the host immune response,…
  • 2016 American Transplant Congress

    CD57+ CD4 T Cells Persist in the Periphery Following Kidney Transplantation.

    J. Espinosa,1,2 L. Stempora,1 R. Townsend,3 A. Kirk.1

    1Duke University, Durham; 2Emory University, Atlanta; 3Bristol-Meyers Squibb, Princeton.

    Purpose: We have shown that CD57+PD1- CD4 T cells play a role in belatacept-resistant rejection, but their mechanism of action is incompletely defined. Potential mechanisms…
  • 2016 American Transplant Congress

    miR-21 in Chronic Allograft Vasculopathy.

    V. Usuelli,1 M. Ben Nasr,1,2 F. D'Addio,1,2 L. Kaifeng,2 L. Borgese,3 L. Potena,3 A. Solini,4 C. Rossi,4 A. Secchi,1 D. Corradi,5 N. Chau,6 P. Fiorina.1,2

    1Ospedale San Raffaele, Milano, Italy; 2Boston Children's Hospital, Boston; 3University of Bologna, Bologna, Italy; 4University of Pisa, Pisa, Italy; 5University of Parma, Parma, Italy; 6Regulus Therapeutics Inc, San Diego.

    Background. Heart transplantation is the most effective therapy to prolong life expectancy in patients with end-stage heart failure. However, despite much progress in the field,…
  • 2016 American Transplant Congress

    IL2 and IL-15 Rescue TEMRA CD8 T Cells from Mitochondrial Dysfunction Associated Senescence Through a p38MAPK Dependent Pathway and Foster Their Pathogenic Potential.

    G. Tilly,1,2 M. Yap,1,2 M. Giral,1,2,3 C. Pecqueur,4 S. Brouard,1,3 N. Degauque.1,3

    1UMR1064, INSERM, Nantes, France; 2Université de Nantes, Nantes, France; 3ITUN, CHU de Nantes, Nantes, France; 4UMR892, INSERM, Nantes, France.

    Background & Study Aim. We recently showed that an accumulation of highly differentiated TEMRA CD8 T cells in kidney transplant recipients with a stable graft…
  • 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

    Single Cell Profiling of Th9 Cells Allows Identification of Functionally Different Subsets.

    K. Stanko, J. Schumann, K. Vogt, S. Schlickeiser, C. Appelt, B. Sawitzki.

    Institute of Medical Immunology, Charite University Medicine, Berlin, Germany.

    T helper type 9 (Th9) cells represent a distinct subset of CD4+ effector T cells that is characterized by high secretion of interleukin (IL)-9. Protective…
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