ATC Abstracts

American Transplant Congress abstracts

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Articles tagged "Rejection"

  • 2022 American Transplant Congress

    BiomarkeR Initiative to Advance Transplantation OutcomEs in Children (BRITE-c) Analysis

    M. E. Seifert1, L. Sheward2, A. Kho2, N. Rodig2, V. Dharnidharka3, M. Diehl2, R. B. Mannon4, O. Bestard5, T. Blydt-Hansen6, D. M. Briscoe2

    1University of Alabama, Birmingham, AL, 2Boston Children's Hospital, Boston, MA, 3St Louis Children's Hospital, St Louis, MO, 4University of Nebraska, Omaha, NE, 5Bellvitge University Hospital, Barcelona, Spain, 6BC Childrens, Vancouver, BC, Canada

    *Purpose: Recent studies indicate that 25-36% of clinically stable pediatric renal transplant recipients will have subclinical rejection detected on surveillance biopsy. These findings highlight a…
  • 2022 American Transplant Congress

    Is a Single Dose of Steroids in Adult Living Donor Liver Transplant Safe? – A Cohort Analysis

    M. Nunez, C. Praglin, A. M. Torres, E. Agudelo, H. Braun, C. Huang, S. Syed, J. Roberts, G. Roll

    University of California San Francisco, San Francisco, CA

    *Purpose: Steroids increase morbidity, and steroid avoidance (SA) has been studied in deceased donor liver transplant but, little is known about SA in living donor…
  • 2022 American Transplant Congress

    Antibody-Mediated Kidney Allograft Rejection (ABMR) Monitoring and Intervention Based on ABMR Subtypes – A Step Towards Precision Diagnosis and Management

    A. Rizvi1, S. Hussain2, M. Kueht3, J. Fair3, A. Gamilla-Crudo4, M. Mujtaba4

    1Internal Medicine, Nephrology, University of Texas Medical Branch, Galveston, TX, 2University of Texas Medical Branch, Houston, TX, 3Surgery, University of Texas Medical Branch, Galveston, TX, 4University of Texas Medical Branch, Galveston, TX

    *Purpose: The monitoring of kidney allograft for early detection of antibody mediated rejection (ABMR) and subsequent intervention using traditional clinical parameters has been insufficient due…
  • 2022 American Transplant Congress

    Study Of Matrix Metalloproteinases(MMP) And Tissue Inhibitors Of Metalloproteinases(TIMP) In Renal Transplant Recipients(RTR)- Rejectors Versus Stable Graft

    J. P. Tom1, R. Dhital2, A. Sharma3, R. Aggarwal1, R. Nada4, R. Ramachandran5, S. Anand1, M. Minz6, R. Minz1

    1Department of Immunopathology, Post Graduate Institute of Medical Education and Research, Chandigarh, India, 2Vaccines and Immunity, Nationwide Children's Hospital, Columbus, OH, 3Department of Renal Transplant Surgery, Post Graduate Institute of Medical Education and Research, Chandigarh, India, 4Department of Histopathology, Post Graduate Institute of Medical Education and Research, Chandigarh, India, 5Department of Nephrology, Post Graduate Institute of Medical Education and Research, Chandigarh, India, 6Department of Renal Transplant Surgery, Fortis Hospital, Mohali, Mohali, India

    *Purpose: Our study aimed to shed light on the role of serum levels of MMP and their inhibitors- TIMP in renal allograft rejection.*Methods: This was…
  • 2022 American Transplant Congress

    Regulatory Gene Pathways Are Upregulated in Heart Transplant Biopsies with Quilty Lesions

    Q. Cai, L. De Las Casas, J. Torrealba

    Pathology, UTSW Medical Ctr, Dallas, TX

    *Purpose: Quilty lesions (QL) are commonly sub-endocardial lymphoid aggregates found in biopsies from heart transplants. Their appearance and presence in the cardiac tissue is still…
  • 2022 American Transplant Congress

    Novel Role of CD74 in Regulatory T Cell Homeostasis and Function in Allo-Immune Response

    Z. Solhjou1, H. Zhang1, N. Younis1, J. Choi1, C. Deban1, A. Saad1, A. Halawi1, Z. Jing1, R. Bucala2, J. Azzi1

    1Brigham and Women's Hospital, Boston, MA, 2Yale University School of Medicine, New Haven, CT

    *Purpose: Identifying new molecular targets based on our understanding of the biology of the allo-immune response in the allograft microenvironment is critical to develop more…
  • 2022 American Transplant Congress

    Analysis of Induction Dose and Incidence of CMV Viremia in High Risk (HR; D+/R-) Renal Transplant Recipients

    K. Shimko, M. Pittappilly, R. Chowdhury, H. Karimi, C. Puttarajappa, M. Wijkstrom, R. Mehta

    University of Pittsburgh Medical Center, Pittsburgh, PA

    *Purpose: Depleting induction puts patients at risk of opportunistic infections. Our protocol aims for 5-6mg/kg cumulative dose of antithymocyte globulin(ATG) divided over 4 doses. It…
  • 2022 American Transplant Congress

    Single Cell And Spatial Transcriptomics Of Blood And Biopsies Reveals Enhanced Alloantigen Presenting Function And T-follicular Helper Cell (tfh) Expansion Early After Pediatric Liver Transplantation

    R. Sindhi1, C. Ashokkumar1, M. Ningappa1, D. Rajasundaram1, B. W. Higgs1, Q. Xu2, A. Zeevi2, M. Reyes-Mugica1

    1Childrens Hospital of Pittsburgh of UPMC, Pittsburgh, PA, 2University of Pittsburgh Medical Center, Pittsburgh, PA

    *Purpose: We have previously reported enhanced B-cell presentation of donor antigen during early T-cell mediated liver transplant (LT) rejection.*Methods: To characterize B-cell related immunological mechanisms…
  • 2022 American Transplant Congress

    A Signature of Tolerance Which Identifies Subclinical Rejection-Free Patients at One Year After Kidney Transplantation

    R. Danger1, L. Le Berre1, M. Cadoux1, C. Kerleau1, P. Guérif1, E. Morelon2, O. Thaunat2, C. Legendre3, D. Anglicheau3, K. Renaudin1, M. Giral1, S. Brouard1

    1Centre de Recherche en Transplantation et Immunologie (CRTI), UMR 1064, ITUN, Nantes Université, CHU Nantes, Inserm, Nantes, France, 2Edouard Herriot Hospital, Hospices Civils de Lyon, Inserm U1111, Lyon-Est Medical Faculty, Claude Bernard University (Lyon 1), Lyon, France, 3APHP, Necker-Enfants Malades Institute, Inserm, Paris University, Paris, France

    *Purpose: Spontaneous and rare cases of patients undergoing a functional renal transplant in the absence of immunosuppression represent a particular situation of immune tolerance. We…
  • 2022 American Transplant Congress

    Utilizing Microporous Annealed Particle (MAP) Gel as an Immunomodulatory Carrier for Islet Delivery

    M. Ma1, P. Chhabra1, C. Roosa2, D. R. Griffin2, K. L. Brayman1

    1Department of Surgery, University of Virginia Health System, Charlottesville, VA, 2Department of Biomedical Engineering, University of Virginia Health System, Charlottesville, VA

    *Purpose: To investigate if coating with MAP gel improves dissociated or whole islet transplantation outcome.*Background: MAP gel platform technology is composed of hydrogel microspheres that…
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