Articles tagged "Tumor necrosis factor (TNF)"

2022 American Transplant Congress
Results Of The Ctot19 Trial: Infliximab (IFX) Induction Does Not Impact 2-year Outcomes In Deceased Donor Kidney Transplant Recipients
P. Heeger¹, B. Armstrong², T. Alhamad³, D. Brennan⁴, J. Bromberg⁵, S. Bunnapradist⁶, S. Chandran⁷, R. Fairchild⁸, D. Foley⁹, R. Formica¹⁰, I. W. Gibson¹¹, D. Hricik¹², K. Kesler², R. B. Mannon¹³, M. Menon¹⁰, K. Newell¹⁴, P. Nickerson¹¹, J. Odim¹⁵, E. Poggio⁸, R. Sung¹⁶, R. Shapiro¹, K. Tinckam¹⁷, F. Vincenti⁷
¹Mount Sinai, New York, NY, ²Rho, Durham, NC, ³Washington U, Saint Louis, MO, ⁴Johns Hopkins, Baltimore, MD, ⁵U Maryland, Baltimore, MD, ⁶UCLA, Los Angeles, CA, ⁷UCSF, San Francisco, CA, ⁸Cleveland Clinic, Cleveland, OH, ⁹U Wisconsin, Madison, WI, ¹⁰Yale, New Haven, CT, ¹¹U Manitoba, Winnipeg, MB, Canada, ¹²U Hosp Case, Cleveland, OH, ¹³U Nebraska, Omaha, NE, ¹⁴Emory, Atlanta, GA, ¹⁵NIAID NIH, Rockville, MD, ¹⁶U Michigan, Ann Arbor, MI, ¹⁷U Hlth Network, Toronto, ON, Canada
*Purpose: Ischemia-reperfusion (IR) of a kidney transplant (KTx) up-regulates tumor necrosis factor alpha (TNF) production within the allograft. IR-induced TNF amplifies post-KTx allograft inflammation and…
2022 American Transplant Congress
Atherosclerosis Reduces Anti-Tumor Activity of Liver-Resident Natural Killer Cells
K. Imaoka, M. Ohira, K. Sato, Y. Imaoka, R. Nakano, H. Ohdan
Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
*Purpose: Abdominal aorta calcification (AAC) is associated with an increased relative risk of coronary events, cerebrovascular events, cardiovascular events, and cardiovascular death. We report that…
2022 American Transplant Congress
P2X7R Inhibition Impairs In Vitro Training of Macrophages
H. H. Lancia¹, R. Sanchez², A. G. Lellouch¹, C. L. Cetrulo¹, J. Ochando³, G. Benichou⁴
¹Division of Plastic and Reconstructive Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA, ²Icahn School of Medicine at Mount Sinai, New York, NY, ³Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, ⁴Center for Transplantation Sciences, Department of Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA
*Purpose: Macrophage training and ATP-mediated P2X7R signaling are unrelated key elements of the innate immune response associated with allotransplant rejection. In the present study, we…
2022 American Transplant Congress
Pretransplant Recipient TNFR2⁺T Regulatory Cell Frequency Predicts Long-Term Outcomes After Kidney Transplantation
A. Kouyoumdjian, N. Saberi, S. Negi, J. Tchervenkov, S. Paraskevas
McGill University Health Centre, Montreal, QC, Canada
*Purpose: Pre-transplant indices capable of predicting long-term renal allograft function could improve graft allocation strategies. We previously associated pretransplant frequency of Tumor Necrosis Factor Receptor…
2022 American Transplant Congress
Everolimus Alleviates Renal Allograft Interstitial Fibrosis by Inhibiting Epithelial to Mesenchymal Transition Not Only via Inducing Autophagy but Also via Stabilizing iκB-α
Z. Gui¹, W. Zijie², M. Zheng³, M. Gu¹, R. Tan³
¹Department of Urology, The Second Affiliated Hospital with Nanjing Medical University, Nanjing, China, ²Jiangsu Province Hospital, Nanjing, China, ³Department of Urology, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
*Purpose: Chronic allograft dysfunction (CAD) is the major cause of late graft loss in long-term renal transplantation. In our previous study, we found Epithelial-mesenchymal transition…
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…
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…
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…