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American Transplant Congress abstracts

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Articles tagged "Immunosuppression"

  • 2015 American Transplant Congress

    Variables Related to the Development of Donor Specific Antibodies (DSA) Post-Kidney Transplant (KTx): Implications for Late Graft Histology and Survival

    F. Cosio,1 C. Schinstock,1 M. Stegall.2

    1Medicine, Mayo Clinic, Rochester, MN; 2Surgery, Mayo Clinic, Rochester, MN.

    Introduction. The incidence of de novo DSA increases post-KTx. DSA is associated to reduced graft survival likely due to chronic antibody mediated rejection (cAMR). However,…
  • 2015 American Transplant Congress

    Reduced Incidence of Cytomegalovirus Infection in Kidney Transplant Recipients Receiving Everolimus

    H. Tedesco-Silva,1 C. Felipe,1 A. Ferreira,1 M. Cristelli,1 T. Sandes- Freitas,1 N. Oliveira,1 W. Aguiar,2 G. Bassos,1 M. Franco,3 M. Gerbase- Lima,4 E. Campos,4 J. Medina-Pestana.1

    1Nephrology, Hospital do Rim UNIFESP, Sao Paulo, Brazil; 2Urology, Hospital do Rim UNIFESP, Sao Paulo, Brazil; 3Pathology, UNIFESP, Sao Paulo, Brazil; 4Immunogenetic, AFIP, Sao Paulo, Brazil.

    BACKGROUND: CMV infection is associated with inferior long-term kidney transplant outcomes. This study compared the incidence of CMV infection/disease in de novo kidney transplant recipients…
  • 2015 American Transplant Congress

    IL-21 Regulates Creation of Tertiary Lymphoid Organs in Chronic Allograft Rejection

    C. Baum,1 M. Khattar,2 P. Schroder,1 W. Chen,3 S. Stepkowski.1

    1Medical Microbiology and Immunology, University of Toledo College of Medicine, Toledo, OH; 2Department of Cancer Immunology and AIDS, Dana-Farber Cancer Institute, Boston, MA; 3Transplant Immunology Research Program, Houston Methodist Research Institute, Houston, TX.

    BACKGROUND: IL-21 is a cytokine expressed almost exclusively by cells of the adaptive immune system. This makes it an attractive target for reducing chronic allograft…
  • 2015 American Transplant Congress

    Not Only CD28null But Also CD28pos T Cells Contribute to Rejection During Belatacept Treatment

    G. de Graav,1 D. Hesselink,1 R. Kraaijeveld,1 M. Dieterich,1 W. Weimar,1 M. Clahsen-Van Groningen,2 C. Baan.1

    1Internal Medicine, Erasmus Medical Center, Rotterdam, South Holland, Netherlands; 2Pathology, Erasmus Medical Center, Rotterdam, South Holland, Netherlands.

    To explain the underlying immunological mechanisms for rejection under belatacept treatment, the phenotypical and functional characteristics of graft infiltrating lymphocytes were studied during rejection under…
  • 2015 American Transplant Congress

    Everolimus-Based Immunosuppression Is Associated With a Reduced Risk of New-Onset Malignancies After Liver Transplantation

    P. De Simone,1 P. Carrai,1 L. Coletti,1 D. Ghinolfi,1 D. Campani,2 F. Filipponi.1

    1Hepatobiliary Surgery and Liver Transplantation, University of Pisa Medical School Hospital, Pisa, Italy; 2Pathology, University of Pisa Medical School Hospital, Pisa, Italy.

    Background and aim: The inhibitor of the mammalian target of rapamycin (mTOR) everolimus (EVR) has shown anti-proliferative effects in experimental and clinical models. We investigated…
  • 2015 American Transplant Congress

    Aging Enhances Immunosuppressives Capacities of Tacrolimus By Functional Changes of CD4+ T-Cells

    F. Krenzien,1 M. Quante,1 A. ElKhal,1 H. Uehara,1 R. Abdi,2 B. Slegtenhorst,1 H. Biefer,1 S. Tullius.1

    1Transplant Surgery Research Laboratory and Division of Transplant Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA; 2Transplantation Research Center, Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.

    Immunosenescence has broad consequences on alloimmunity and immunosuppression in the elderly may require age-adaptation. Here, we investigated the influence of aging on the effectivity of…
  • 2015 American Transplant Congress

    Customized Reminders and Provider Notification to Improve Adherence to Immunosuppression

    P. Reese, R. Bloom, J. Trofe-Clark, A. Mussell, D. Leidy, S. Levsky, J. Zhu, Y. Lin, A. Troxel, H. Feldman, K. Volpp.

    UPenn, Philadelphia, PA.

    Background: Non-adherence to transplant immunosuppression is associated with an elevated risk of allograft loss. Novel, wireless-enabled pill bottles have created the opportunity to monitor patient…
  • 2015 American Transplant Congress

    Influence of POR*28 Genotype on Tacrolimus Disposition in Heart Transplant Recipients

    T. Alford,1 R. Page,1 J. Lindenfeld,2 C. Aquilante.1

    1University of Colorado Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, CO; 2University of Colorado School of Medicine, Aurora, CO.

    Polymorphisms in P450 oxidoreductase (POR) have been shown to modulate CYP3A activity and alter the pharmacokinetics of CYP3A substrates, such as tacrolimus (TAC). The objective…
  • 2015 American Transplant Congress

    The Use of Bortezomib for Desensitization in ABO Incompatible and Positive Crossmatch Kidney Transplant

    J. Benken,1 S. Akkina,2 E. Benedetti.3

    1Pharmacy Practice, Univ. of IL-Chicago, Chicago, IL; 2Dept. of Medicine, Nephrology, Univ. of IL-Chicago, Chicago, IL; 3Dept. of Surgery, Univ. of IL-Chicago, Chicago, IL.

    Introduction:ABO incompatible (ABOi) and positive crossmatch (PXM) living donor kidney transplantation is a life-saving alternative to dialysis. A variety of protocols exist utilizing plasmapheresis (PP)…
  • 2015 American Transplant Congress

    T-bet Directs nTreg Homing Into Draining Lymph Nodes by Regulation of Specific Migration and Adhesion Receptors

    Y. Xiong, S. Ahmad, D. Iwami, C. Brinkman, J. Bromberg.

    University of Maryland, Baltimore.

    Background: The transcription factor T-bet endows Treg with the functional and migratory properties to suppress Th1 inflammation. Previously, we showed that nTreg homing into draining…
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