Articles tagged "Rejection"

2021 American Transplant Congress
Multiplexed Imaging Mass Cytometry of the Alloimmune Landscape of Rejection in Clinical Liver Transplantation
J. Emamaullee, N. Ung, C. Man, J. Hoeflich, C. Goldbeck, A. Barbetta, R. Sun, N. Matasci, J. Katz, J. Lee, S. Chopra, L. Sher, S. Asgharzadeh, O. Akbari, Y. Genyk
University of Southern California, Los Angeles, CA
*Purpose: Rejection continues to be an important cause of graft loss and failure post-liver transplant (LT). Imaging Mass Cytometry (IMC) is an emerging preclinical technique…
2021 American Transplant Congress
Assessment of Donor-Derived Cell-Free DNA Performance Characteristics Across the Spectrum of TCMR and ABMR After Kidney Transplant
L. Bu¹, S. Anand², A. Pai³, J. S. Bromberg⁴, T. Alhamad⁵, V. Bowers⁶, I. Moinuddin⁷, S. Ghosh⁸, W. Tian⁸, E. Stites⁹, G. Gupta⁷
¹University of Minnesota, Minneapolis, MN, ²Intermountain Medical Center, Murray, UT, ³University of Texas McGovern Medical School, Houston, TX, ⁴University of Maryland School of Medicine, Baltimore, MD, ⁵Washington University in St. Louis, St. Louis, MO, ⁶Tampa General Hospital, Tampa, FL, ⁷Virginia Commonwealth University, Richmond, VA, ⁸CareDx, Brisbane, CA, ⁹University of Colorado, Aurora, CO
*Purpose: Different donor-derived cell-free DNA (dd-cfDNA) thresholds have been reported in association with varying TCMR, ABMR and “Borderline” diagnoses. Interpretation of dd-cfDNA levels spanning active…
2021 American Transplant Congress
Evaluation of a Weight-Based Mycophenolate Mofetil Dosing Protocol for Kidney Transplant Maintenance Immunosuppression
M. Mahoney¹, E. Kincaide¹, J. Nelson¹, K. Klein¹, R. Hall¹, S. Bhayana²
¹University Health, San Antonio, Department of Pharmacotherapy and Pharmacy Services, The University of Texas at Austin, Pharmacotherapy Division, College of Pharmacy, San Antonio, TX, ²University Transplant Center, University Health, San Antonio, Department of Nephrology, The University of Texas Health Science Center at San Antonio, San Antonio, TX
*Purpose: To evaluate the safety and efficacy of a weight-based mycophenolate mofetil (MMF) dosing protocol in adult kidney transplant recipients (KTR).*Methods: This single-center retrospective study…
2021 American Transplant Congress
Prospective Intensive Monitoring for Anamnestic DSA Responses Allows Near Elimination of Early Clinical AMR
M. McGowan¹, A. Bickenbach¹, A. R. Shields², R. R. Alloway¹, P. Brailey¹, E. Portwood¹, C. Alquist¹, A. Christianson¹, B. Abu Jawdeh¹, M. Cuffy¹, J. Kremer², S. Bumb¹, A. Govil¹, M. Anand¹, T. Kaur¹, E. S. Woodle¹
¹U Cincinnati, Cincinnati, OH, ²Christ Hospital, Cincinnati, OH
*Purpose: Anamnestic donor specific antibody (aDSA) responses can result in severe, graft threatening antibody-mediated rejection (AMR). We hypothesized that intensive DSA monitoring (IDM) for aDSA…
2021 American Transplant Congress
CHBP Induces Stronger Immunosuppressive CD127⁺ M-MDSC via Erythropoietin Receptor
C. Yang
Urology, Zhongshan Hospital, Fudan University, Shanghai, China
*Purpose: Erythropoietin (EPO) is not only an erythropoiesis hormone, but also an immune regulatory cytokine. The receptors of EPO, (EPOR)2 and tissue protective receptor (TPR),…
2021 American Transplant Congress
Blood Gene Expression and Donor-derived Cell Free DNA for Diagnosing Subclinical Acute Rejection in Stable Kidney Transplant Recipients
S. Park¹, K. Guo², H. Raymond³, E. Poggio⁴, D. Taber⁵, C. Marsh⁶, S. Kurian⁷, S. Kleiboeker⁸, J. Weems⁸, J. Holman⁹, L. Zhao², R. Sinha⁸, S. Brietigam², C. Rebello², M. Abecassis¹⁰, J. Friedewald¹
¹Transplant Nephrology, Northwestern University, Chicago, IL, ²Feinberg School of Medicine, Northwestern University, Chicago, IL, ³Mayo Clinic College of Medicine and Science, Phoenix, AZ, ⁴Department of Nephrology and Hypertension, Cleveland Clinic, Cleveland, OH, ⁵Division of Transplant Surgery, Medical University of South Carolina, Charleston, SC, ⁶Department of Medicine and Surgery, Scripps Clinic and Green Hospital, La Jolla, CA, ⁷Scripps Health, La Jolla, CA, ⁸Eurofins US Clinical Diagnostics, Lee's Summit, MO, ⁹Transplant Genomics, Inc, Mansfield, MA, ¹⁰University of Arizona College of Medicine, Tucson, AZ
*Purpose: A blood gene expression profile (GEP) has been established as a non-invasive screen for subclinical acute rejection (subAR). For patients with allograft dysfunction, donor-derived…
2021 American Transplant Congress
How Should Acute T-Cell Mediated Rejection of Kidney Transplants be Treated?
F. Aziz¹, S. Parajuli², N. Garg², M. Mohamed², A. Djamali², D. Mandelbrot²
¹University of Wisconsin, Madison, WI, ²University of Wisconsin, Verona, WI
*Purpose: Many guidelines suggest treating acute T-cell mediated rejection (TCMR) of kidney allografts that is Banff grade I with steroids alone and Banff grade II…
2021 American Transplant Congress
Clinical Validation and Performance of Donor-Derived Cell-Free DNA in Allograft Rejection
S. Anand¹, A. Pai², J. S. Bromberg³, G. Gupta⁴, I. Moinuddin⁴, T. Alhamad⁵, V. Bowers⁶, S. Ghosh⁷, W. Tian⁷, L. Bu⁸, E. Stites⁹
¹Intermountain Medical Center, Murray, UT, ²University of Texas McGovern Medical School, Houston, TX, ³University of Maryland School of Medicine, Baltimore, MD, ⁴Virginia Commonwealth University, Richmond, VA, ⁵Washington University in St. Louis, St. Louis, MO, ⁶Tampa General Hospital, Tampa, FL, ⁷CareDx, Brisbane, CA, ⁸University of Minnesota, Minneapolis, MN, ⁹University of Colorado, Aurora, CO
*Purpose: Extensive literature regarding the utility of donor-derived cell-free DNA (dd-cfDNA) shares various thresholds for active rejection (AR) based on differing data sets for both…
2021 American Transplant Congress
Non-HLA Antibodies and Eplet Mismatches in Cases with Histological Picture of Antibody-Mediated Rejection with and without HLA Donor-Specific Antibodies
M. Crespo¹, L. Llinás², D. Redondo², C. Butler³, J. Gimeno⁴, M. Pérez-Sáez², A. Buxeda², C. Arias², M. Folgueiras², S. Sanz², N. Valenzuela³, E. E. Reed³, J. Pascual²
¹Nephrology and Kidney Transplantation, Hospital del Mar, Barcelona, Spain, ²Nephrology, Hospital del Mar, Barcelona, Spain, ³UCLA Immunogenetics Center, UCLA, Los Angeles, CA, ⁴Pathology, Hospital del Mar, Barcelona, Spain
*Purpose: Correlation between antibody-mediated rejection (ABMR) and HLA donor-specific antibodies (DSA) is strong but imperfect in kidney transplant (KT) recipients, raising the possibility of other…
2021 American Transplant Congress
Use of Immune Checkpoint Inhibitors in Solid Organ Transplant Recipients: A Scoping Review
A. G. Anderson, M. Eubank, K. Murray
University of Missouri, Columbia, MO
*Purpose: Immune checkpoint inhibitors (ICI) are an emerging treatment for numerous advanced diseases, but their safety and efficacy in immunosuppressed transplant patients is not known.…