ATC Abstracts

American Transplant Congress abstracts

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Articles tagged "Biopsy"

  • 2015 American Transplant Congress

    OX40 Gene: A Potential Target for the Care of Chronic T-Cell Mediated Rejection (TCMR)

    F. Schena,1 C. Curci,1 F. Sallustio,1 M. Trpevski,1 G. De Palma,1 M. Fiorentino,2 M. Rossini,2 M. Quaglia,3 E. Bozzola,3 S. Zanini,4 L. Furian,4 A. Toscano,5 E. Gallo,6 L. Gesualdo,2 P. Stratta,3 P. Rigotti,4 F. Citterio,5 L. Biancone.6

    1C.A.R.S.O. Consortium, Valenzano, Italy; 2University of Bari, Bari, Italy; 3A.O.U. Maggiore della Carità, Novara, Italy; 4University of Padova, Padua, Italy; 5Cattolica Sacro Cuore University, Rome, Italy; 6University of Torino, Turine, Italy.

    Introduction:TCMR is characterized by the reduction of vessel lumen with marked intimal thickening, fibrous hyperplasia and a strong component of leukocyte infiltrate. Aim of our…
  • 2015 American Transplant Congress

    Is Electron Microscopy Adding a Diagnostic Advantage in the Evaluation of Renal Allograft Biopsies for Antibody Mediated Rejection (AMR)?

    J. Papadimitriou, M. Chaudhry, C. Drachenberg, R. Ugarte, D. Klassen, E. Ramos, C. Cangro, B. Thomas, M. Mavanur, A. Haririan.

    Pathology and Medicine, University of Maryland School of Medicine, Baltimore, MD.

    Some electron microscopy (EM) findings have been consistently associated with antibody mediated microvascular injury; however, no large studies have been performed examining the concrete advantage…
  • 2015 American Transplant Congress

    The Impact of Therapy On the Inflammatory Infiltrate in Renal Allografts With Acute and Chronic Antibody Mediated Rejection

    W. Mulley,1,2 D. Nikolic-Paterson,1,2 A. Longano,3 Y. Han,1 F. Ma,1 J. Kanellis,1,2 S. Ramessur.1,2

    1Department of Nephrology, Monash Health, Clayton, Vic, Australia; 2Department of Medicine, Monash University, Clayton, Vic, Australia; 3Department of Pathology, Monash Health, Clayton, Vic, Australia.

    Little is known about the effect of usual treatment for acute and chronic antibody mediated rejection (aAMR and cAMR) on inflammatory cells within the allograft.…
  • 2015 American Transplant Congress

    Single Center Experience of C4d Staining of Kidney Transplant Biopsies

    R. Prashar, L. Yessayan, M. Goggins, V. Karthikeyan, K. Venkat, A. Patel.

    Division of Nephrology and Transplant Institute, Henry Ford Hospital, Detroit, MI.

    Introduction: While a diffuse positivity (>50%) of C4d in kidney transplant peritubular capillaries strongly co-relates with the presence of acute or chronic antibody mediated rejection,…
  • 2015 American Transplant Congress

    Clinical Subclassifiation of ABMR Phenotypes: Recognizing Variation in Presentation

    P. Halloran, M. Lopez, I. Salazar, J. Chang.

    Alberta Transplant Applied Genomics Centre, Edmonton, Canada.

    The diagnosis of ABMR in kidney transplants is based on ptc-, g- and cg-lesions in biopsies and donor-specific antibody (DSA). To recognize the actual phenotypes…
  • 2015 American Transplant Congress

    NK-Cell Subset Distribution, Renal Function and Biopsy Findings in Kidney Transplant Recipients With HLA Donor-Specific Antibodies

    M. Crespo,1 D. Redondo,1 J. Gimeno,2 J. Yelamos,3 A. Muntasell,3 A. Faura,1 M. Pérez-Sáez,1 M. López-Montañes,4 A. Torío,5 C. García,6 M. Mir,1 J. Hernandez,6 M. López-Botet,3,4 J. Pascual.1

    1Nephrology Unit, Hospital del Mar, Barcelona, Spain; 2Servicio de Anatomía Patológica, Hospital del Mar, Barcelona, Spain; 3Servicio de Inmunología, Institut Mar d'Investigacions Mediques, Barcelona, Spain; 4Universitat Pompeu Fabra, Barcelona, Spain; 5Laboratori de Referencia de Catalunya, Barcelona, Spain; 6Immunology Department, Hospital de Alicante, Alicante, Spain.

    Background: Detection of post-transplant donor-specific anti-HLA antibodies(DSA) constitutes a risk factor for kidney transplant (KT) loss. NK-cell antibody-dependent cell mediated cytotoxicity(ADCC) has been proposed to…
  • 2015 American Transplant Congress

    Gene Expression Profiles Indicate That Many Discarded Kidneys Are Potentially Transplantable

    K. Famulski,1 S. Niederhaus,2 J. Reeve,1 J. Bromberg,2 P. Halloran.

    1University of Alberta, Edmonton, Canada; 2University of Marlyland, Baltimore.

    We previously showed that the molecular kidney injury-repair response (AKI score) in implantation core biopsies (Bx) predict future graft function better than histology. This could…
  • 2015 American Transplant Congress

    Arterial Blood Pressure at Time of Liver Transplant (LT) Evaluation Correlates With Kidney Biopsy Findings in LT Candidates With Renal Dysfunction

    H. Wadei, A. Peguero, A. Alsaad, M. Mai, K. Oshel, T. Gonwa, C. Taner, A. Keaveny.

    Transplant, Mayo Clinic, Jacksonville, FL.

    Renal dysfunction is common in LT candidates; however, predicting post-LT renal recovery is sometimes difficult. Kidney biopsy is helpful in identifying reversible renal injury but…
  • 2015 American Transplant Congress

    End of Treatment Liver Biopsy With Sofosbuvir: Histologic Changes Suggestive of Hepatitis C Activity in Liver Transplant Recipients With Achieved SVR

    B. Ismail,1 X. Zervos,1 P. Bejarano,2 M. Waton,1 D. Beltran,3 D. Sears,1 A. Tzakis.1

    1Liver Transplant, Cleveland Clinic Florida, Weston, FL; 2Pathology, Cleveland Clinic Florida, Weston, FL; 3Pharmacy, Cleveland Clinic Florida, Weston, FL.

    Background: Interferon (IFN) free HCV regimens are associated with better tolerability and efficacy. The majority of studies report biochemical and virological response; however limited information…
  • 2015 American Transplant Congress

    The Influence of Immunosuppressive Drugs On the Epithelial Microenvironment in Solid Organ Transplantation – Identification of Biomarker Candidates for Rejection Vs. Tolerance

    A. Akhdar,1 B. Mueller,2 C. Neudoerfl,1 F. Lehner,3 M. Stevanovic-Meyer,1 K. Daemen,1 J. Keil,1 H. Haller,4 C. Blume,4,5 C. Falk.1,6

    1Institute of Transplant Immunology, IFB-Tx, Hanover Medical School, Hanover, Germany; 2MorphoSys, Munich, Germany; 3Department of General, Visceral and Transplantation Surgery, Hanover Medical School, Hanover, Germany; 4Department of Nephrology and Hypertension, Hanover Medical School, Hanover, Germany; 5Institute of Technical Chemistry, Leibniz University Hanover, Hanover, Germany; 6German Center for Infection Research, Braunschweig, Germany.

    In the context of kidney transplantation, NK cells may play an important role by targeting the allogeneic organ due to "missing-self recognition", which leads to…
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