Articles tagged "HLA antibodies"

2018 American Transplant Congress
Clinical Heterogeneity of Early Anamnestic Donor Specific Antibody Responses in Kidney Transplantation
A. Loethen,¹ A. Lichvar,¹ S. Tremblay,¹ A. Shields,^1,2 A. Dao,¹ M. Cardi,² P. Brailey,¹ A. Girnita,¹ B. Abu Jawdeh,¹ R. Alloway,¹ E. Woodle.¹
¹U of Cincinnati, Cincinnati, OH; ²Christ Hospital, Cincinnati, OH.
Anamnestic donor specific antibody(DSA) responses in the early post-transplant period may threaten the renal transplant(RTx). We hypothesize earlier DSA detection will allow minimization of RTx…
2018 American Transplant Congress
Lower Incidence of De Novo Donor-Specific Antibodies against HLA-DR in ABO-Incompatible Renal Transplantation
M. Okada,¹ K. Futamura,¹ T. Hiramitsu,¹ M. Tsujita,¹ N. Goto,¹ S. Narumi,¹ Y. Watarai,¹ K. Iwasaki,² T. Kobayashi.²
¹Department of Transplant and Endocrine Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan; ²Department of Transplant Surgery, Aichi Medical University, Nagakute, Japan.
IntroductionDe novo DSA-induced chronic antibody-mediated rejection (AMR) is one of major obstacles to long term graft survival. We have reported that anti-A/B antibody binding could…
2018 American Transplant Congress
Isolated Pre-Transplant Angiotensin II Type I Receptor Antibodies (AT1R Ab) Are Not Associated with Reduced Graft Function or Hypertension (HTN) in Pediatric Kidney Transplant (Ped KTx) Patients (pts)
H. Pizzo, J. Choi, M. Haas, X. Zhang, E. Kamil, I. Kim, S. Jordan, D. Puliyanda.
Comprehensive Transplant Center, Cedars-Sinai Medical Center, Los Angeles, CA.
Background: Pre-tx donor-specific antibodies (DSA) raises the risk for antibody-mediated rejection (ABMR) and graft dysfunction. The role of AT1R Ab is unclear. In adults, post-tx…
2018 American Transplant Congress
Defining Response to Standard of Care Treatment in Kidney Recipients with Antibody-Mediated Rejection: Role of C1q-Binding Donor-Specific Anti-HLA Antibodies
Y. Bouatou, D. Viglietti, O. Aubert, A. Loupy, C. Lefaucheur.
Paris Translational Research Center for Organ Transplantation, Paris, France.
A major hurdle to improving clinical care in kidney transplantation is the lack of biomarkers of the response to antibody-mediated rejection (ABMR) treatment. We investigated…
2018 American Transplant Congress
The Clinical Significance of Pretransplant C1q Assay Status in Positive Crossmatch Kidney Transplantation
J. Lee,¹ D. Kim,¹ B. Park,² S. Song,³ J. Lee,⁴ Y. Jung,¹ J. Lee,¹ J. Lee,¹ B. Kim,⁵ M. Kim,¹ S. Kim,¹ Y. Kim,¹ K. Huh.¹
¹Surgery, Yonsei University College of Medicine, Seoul, Korea; ²Laboratory Medicine, Asan MEdical Center, Seoul, Korea; ³Surgery, Ewha Womans University, School of Medicine, Seoul, Korea; ⁴Surgery, CHA Bundang Medical Center, CHA University, Seongnam, Korea; ⁵Internal Medicine (Nephrology), Yonsei University College of Medicine, Seoul, Korea.
Background: Patients with a pretransplant donor-specific antibodies (DSA) are at higher risk for antibody-mediated rejection (AMR). However, not all DSA have the same pathogenetic potential.…
2018 American Transplant Congress
De Novo Donor Specific Antibodies in Pediatric Kidney Transplant Recipients Are Highly Responsive to Therapy
V. Sigurjonsdottir, P. Grimm.
Pediatric Nephrology, Lucile Packard Children´s Hospital, Palo Alto, CA.
Background: Pediatric Kidney transplant recipients who develop dnDSAs are at increased risk of allograft loss and rapid decline in GFR. C1q+ DSA, in particular, is…
2018 American Transplant Congress
Dual Inhibition of PI3K and mTORC2 Causes ERK Hyperactivation Induced by HLA-II Antibody in Human Endothelium
Y-.P. Jin, E. Reed.
Pathology and Laboratory Medicine, David Geffen School of Medicine, UCLA, Los Angeles, CA.
Background: Endothelial cells (EC) line the inner surface of blood vessels and serve as the interface between recipient circulating blood and the donor allograft. Transplant…
2018 American Transplant Congress
The Complexity of HLA-DQ
D. Pinelli, A. Tambur.
Northwestern University, Chicago.
Historically, HLA-DQ antigens and antibodies (Ab) were difficult to classify due to the lack of serological typing reagents. However, with the advent of molecular typing…
2018 American Transplant Congress
The Results of Plasmapheresis and Anti-CD20 Based Desensitization without Intravenous Immunoglobulin in Positive Crossmatch Kidney Transplants
H. Kwon, Y. KIm, J. Choi, S. Shin, J. Jung, M. Cho, J. Kim, D. Han.
Asan Medical Center, Seoul, Korea.
This study examined the mid-term clinical outcomes in positive crossmatch kidney transplants (XMKT) for patients who received desensitization with plasmapheresis (PP) and anti-CD20 based regimens…
2018 American Transplant Congress
Searching for Recipient-HLA Class II and Donor-HLA-Derived Peptide Complexes Inducing Protective Effect against De Novo Donor-Specific HLA Antibodies Formation in Kidney Transplantation
T. Tomosugi,¹ K. Iwasaki,¹ M. Okumura,¹ Y. Matsuoka,¹ K. Horimi,¹ M. Okada,² Y. Watarai,² T. Kobayashi.¹
¹Kidney Transplant Surgery, Aichi Medical University, Nagakute, Aichi, Japan; ²Transplant and Endocrine Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Aichi, Japan.
De novo donor-specific HLA antibodies (dnDSA) are recognized as a risk factor for late deterioration of renal allograft function. dnDSA production occurs via the indirect…