Articles tagged "Tumor necrosis factor (TNF)"

2021 American Transplant Congress
Exosomal DAMP Proteins Released During Islet Isolation Affects TPIAT Outcomes
P. Saravanan, J. Kalivarathan, M. Levy, M. Kanak
Hume Lee Islet Cell Transplantation Lab, Department of Surgery, VCU Health, Richmond, VA
*Purpose: Isolation of islets cause significant stress that results in the release of immunogenic factors called damage-associated molecular patterns (DAMPs) which can induce inflammatory signaling…
2021 American Transplant Congress
Extracellular Matrix Injury of Kidney Allografts in Antibody-mediated Rejection
S. Clotet Freixas¹, C. McEvoy¹, I. Batruch², C. Pastrello³, M. Kotlyar³, J. Van¹, M. Arambewela¹, A. Boshart¹, S. Farkona¹, Y. Niu³, Y. Li¹, O. Famure¹, A. Bozovic⁴, V. Kulasingam⁴, P. Chen¹, J. S. Kim¹, E. Chan⁵, S. Moshkelgosha¹, S. A. Rahman⁶, J. Das⁶, T. Martinu¹, S. Juvet¹, I. Jurisica³, A. Chruscinski¹, R. John¹, A. Konvalinka¹
¹Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada, ²Department of Laboratory Medicine and Pathobiology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada, ³Krembil Research Institute, University Health Network, Toronto, ON, Canada, ⁴Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada, ⁵Department of Medicine, Division of Nephrology, University Health Network, Toronto, ON, Canada, ⁶Center for Systems Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA
*Purpose: Antibody-mediated rejection (AMR) accounts for >50% of kidney graft losses. AMR is caused by donor-specific antibodies (DSA) against HLA and non-HLA antigens in glomeruli…
2020 American Transplant Congress
A Two-Step Cell-Based Assay Predicts Immunosuppression-Related Adverse Events in Kidney Transplant Recipients
F. Bouchard-Boivin, O. Désy, S. Béland, S. De Serres
Transplantation Unit, Renal Division, Medecine Department, Laval University, Québec, QC, Canada
*Purpose: No clinical tool is available to dynamically access immunosuppression status, which results in serious, often life-threatening adverse effects of immunosuppressants. We recently validated that…
2020 American Transplant Congress
A Single Nucleotide Polymorphism of Tweak Predicts Arterio- and Arteriolohyalinosis in Kidney Transplants and is Associated with Allograft Survival
A. Karolin¹, D. Thottan¹, J. Zinsli¹, S. Rudloff¹, U. Huynh-Do¹, V. Banz², T. Berney³, M. Pascual⁴, T. Müller⁵, P. d’Amico⁶, I. Binet⁷, D. Sidler¹
¹Nephrology and Hypertension, University Bern, Bern, Switzerland, ²University Bern, Bern, Switzerland, ³University Hospital Genevia, Genevia, Switzerland, ⁴University Hospital Lausanne, Lausanne, Switzerland, ⁵University Hospital Zurich, Zurich, Switzerland, ⁶Hospital St.Gallen, St.Gallen, Switzerland, ⁷University Hospital Basel, Basel, Switzerland
*Purpose: We have recently demonstrated that the TNF superfamily member is critical for the pathogenesis of Calcineurin Inhibitor Toxicity (CNT). CNT is a common side…
2020 American Transplant Congress
Monitoring Inflammatory Cytokines in HLA-Sensitized Kidney Transplant Patients (HS KTx Pts) Desensitized with Clazakizumab (CLZ, Humanized Anti-IL-6 Monoclonal Antibody) Followed by Transplantation (Tx)
S. Ge¹, A. Petrosyan¹, M. Chu¹, N. Ammerman², A. Vo², X. Zhang³, S. C. Jordan², M. Toyoda¹
¹Transplant Immunology Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA, ²Comprehensive Transplant Center, Cedars-Sinai Medical Center, Los Angeles, CA, ³HLA Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA
*Purpose: Chronic inflammation and HLA sensitization are burdens for end stage renal disease Pts awaiting for a KTx. IL-6 is a pro-inflammatory cytokine responsible for…
2020 American Transplant Congress
Analysis of the Mechanism of Liver-Resident NK Cells Activity via the Aryl Hydrocarbon Receptor
K. Sato, M. Ohira, Y. Imaoka, H. Ohdan
Department of Gastroenterological and Transplant Surgery, Hiroshima University, Hiroshima, Japan
*Purpose: Tumor recurrence is the main limitation of liver transplantation (LT) in patients with hepatocellular carcinoma (HCC). We previously reported an adoptive immunotherapy approach that…
2020 American Transplant Congress
Activation of Tacrolimus Induced Cytotoxicity Through Apoptotic Pathways
S. Chung, S. Choi
Department of Surgery, Chonnam National University, Gwangju, Korea, Republic of
*Purpose: To elucidate the mechanism of cytotoxicity in FK506-treated Jurkat T cells, signal transduction pathway of TNF-related events was studied.*Methods: Viability of Jurkat T cells…
2020 American Transplant Congress
Decreased Anti-Tumor Activity of Liver-Resident NK Cells via IL-33 Associated with Portal Hypertension after Living Donor Liver Transplantation
Y. Imaoka, M. Ohira, K. Sato, H. Ohdan
Hiroshima Uni., Hiroshima, Japan
*Purpose: It has been reported that increasing portal vein pressure after living donor liver transplantation (LDLT) was associated with a poor prognosis, risk factors for…
2019 American Transplant Congress
Donor Management in Donation after Brain Death: A Window of Opportunity – Are Pro-Inflammatory Mediators the Target and What is the Effect of Duration of Brain Death?
K. D. Bera¹, J. Tabak², M. L. Lo Faro¹, R. J. Ploeg¹
¹Nuffield Department of Surgical Sciences, University of Oxford, Oxford, United Kingdom, ²University of Exeter, Exeter, United Kingdom
*Purpose: Donation after brain death (BD) is a crucial source of transplanted organs - uncertainty remains how duration of BD contributes to outcomes: This study…
2019 American Transplant Congress
Phenotypic and Functional Analysis of Non-Activated and Allo-Activated Eomesodermin+ CD8+ T Cells in Humans and Nonhuman Primates
A. Perez Gutierrez¹, A. W. Thomson², D. M. Metes², M. B. Ezzelarab²
¹Transplantation Institute, University of Chicago Medicine, Chicago, IL, ²Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA
*Purpose: The T-box transcription factors Eomesodermin (Eomes) and T-bet play a critical role in differentiation and function of CD8+ memory T cells (Tmem). We have…