Articles tagged "Alloantibodies"

2019 American Transplant Congress
Long-Term Outcomes of Eculizumab-Treated Positive Crossmatch Recipients: Allograft Survival, Histologic Findings, and Natural History of the Donor-Specific Antibodies
C. Schinstock, A. Bentall, S. Byron, L. Cornell, M. Everly, M. Gandhi, M. Stegall
Mayo Clinic, Rochester, MN
*Purpose: We aimed to determine long-term outcomes for eculizumab-treated, positive crossmatch (+XM) kidney transplant recipients as compared with +XM and age-matched negative crossmatch (−XM) control…
2019 American Transplant Congress
Selective CD28 Blockade-Mediated Inhibition of T Follicular Helper Cell and DSA Responses is CTLA-4 Dependent
G. M. La Muraglia II, M. L. Ford, I. R. Badell
Emory Transplant Center, Atlanta, GA
*Purpose: Clinical costimulation blockade of the CD28 pathway in the form of CTLA-4Ig has shown the ability to attenuate T cell dependent DSA responses. However,…
2019 American Transplant Congress
Long-Term Efficacy and Safety of Everolimus Based Immunosuppression on De Novo Kidney Transplantation with 10 Years Follow-Up
Y. Watarai¹, S. Narumi¹, T. Tomosugi¹, K. Futamura², M. Okada¹, M. Tsujita², T. Hiramitsu¹, T. Kobayashi³, N. Goto²
¹Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan, ²Transplant Nephrology, Nagoya Daini Red Cross Hospital, Nagoya, Japan, ³Kidney Transplantation, Aichi Medical University, Nagoya, Japan
*Purpose: Long-term efficacy and safety of everolimus (EVR) based immunosuppression for de novo kidney transplant recipient who were involved in A1202 study from our institute…
2019 American Transplant Congress
Nivolumab-Induced Rejection of a Liver Allograft: PD-1 Inhibition Thwarts Liver Allograft Resistance to Humoral Rejection
B. T. Lee, H. Han, S. Chopra, A. J. Ahearn
Surgery, USC Keck School of Medicine, Los Angeles, CA
*Purpose: Checkpoint inhibitor therapy with Programmed cell death protein (PD-1) inhibitors has recently been FDA approved for the treatment of several malignancies. However, it has…
2019 American Transplant Congress
Impact Of Delayed Kidney Transplantation On Positive Crossmatch Liver Kidney Transplantation
Z. Rokop, C. Kubal, B. Ekser, R. Mangus, J. Fridell, P. Mihaylov, W. Goggins
Department of Surgery, Indiana University Hospital, Indianapolis, IN
*Purpose: Kidney transplantation in sensitized patients is associated with an increased immunological risk. Significant decrease in circulating anti-HLA donor specific antibodies (DSA) has been observed…
2019 American Transplant Congress
Memory T Follicular Helper Cell Alloresponse is Memory B Cell Independent and Inhibited by CD28 Costimulation Blockade
S. Zeng, G. M. La Muraglia II, M. L. Ford, I. R. Badell
Emory University School of Medicine, Atlanta, GA
*Purpose: Donor-directed HLA antibodies are an important cause of renal allograft injury, but reliable and durable therapeutic options to prevent or eliminate donor-specific antibodies (DSA)…
2019 American Transplant Congress
Impacts of Mycophenolate Mofetile Addition to Very Low Exposure Everolimus and Calcineurine Inhibitor Based Immunosuppression in De Novo Kidney Transplantation 5 Years Results
Y. Watarai¹, S. Narumi¹, T. Tomosugi¹, M. Okada¹, K. Futamura², M. Tsujita², T. Hiramitsu¹, T. Kobayashi³, N. Goto²
¹Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan, ²Transplant Nephrology, Nagoya Daini Red Cross Hospital, Nagoya, Japan, ³Kidney Transplant Surgery, Aichi Medical University, Nagoya, Japan
*Purpose: Prospective randomized study of MMF addition to everolimus (EVR) based immunosuppression was evaluated in clinical outcomes as well as protocol biopsies findings and donor…
2019 American Transplant Congress
Immunologic Outcomes In Recipients Of Orthotopic Liver Transplant Induced Only With Steroids
S. N. Merwat, A. T. Chatila, M. Bilal, R. Kulkarni, H. L. Stevenson, J. H. Fair, S. K. Merwat, T. Kozlowski, M. A. Mujtaba
The University of Texas Medical Branch, Galveston, TX
*Purpose: Liver allografts are resistant to antibody mediated rejection (AMR) in the presence of preformed alloantibodies. In most cases donor specific antibodies (DSAs) disappear a…
2019 American Transplant Congress
NK Cells Are Associated with Alloimmune Failure in Transplanted Children
E. T. Chambers¹, O. Martinez², M. Robien³, C. Chan¹, R. Ettenger⁴, P. Grimm⁵, H. Lee¹, E. Reed⁴, L. Stempora⁶, M. Sarwal⁷, B. Warshaw⁸, C. Zhao¹, A. D. Kirk⁶
¹Pediatrics, Duke University, Durham, NC, ²Surgery, Stanford, Palo Alto, CA, ³NIH, Bethesda, MD, ⁴Pediatrics, UCLA, Los Angeles, CA, ⁵Pediatrics, Stanford, Stanford, CA, ⁶Surgery, Duke University, Durham, NC, ⁷Pediatrics, UCSF, San Francisco, CA, ⁸Pediatrics, Emory University, Atlanta, GA
*Purpose: Alloimmune failure, defined as the development of donor specific antibody (DSA) and/ or allograft rejection, remains a significant complication in pediatric kidney transplantation. NK…
2019 American Transplant Congress
Alloreactive B Cells in Transplant Tolerant Recipients Cannot Differentiate into Antibody-Secreting Cells but Can Suppress Donor-Specific IgG Production By Naïve B Cells
S. H. Khiew¹, J. Chen¹, D. Jain¹, Q. Wang¹, D. Yin¹, M. Alegre², A. S. Chong¹
¹Department of Surgery, Section of Transplant, University of Chicago, Chicago, IL, ²Department of Medicine, University of Chicago, Chicago, IL
*Purpose: Donor specific transplantation tolerance has long been the goal of clinical transplantation. Clinical observations suggest that donor-specific antibodies (DSA) are a major cause of…