Articles tagged "Renal ischemia"

2022 American Transplant Congress
Autoimmune Responses to DNA Topoisomerase I Exacerbate Renal Allograft Injury
V. Gorbacheva, R. Fan, S. Miyairi, W. M. Baldwin, R. Fairchild, A. Valujskikh
Inflammation and Immunity, Cleveland Clinic, Cleveland, OH
*Purpose: Immune responses to self antigens develop following organ transplantation. Multiple studies describe correlations between pre-existing or de novo autoimmune responses and poor transplant outcome.…
2022 American Transplant Congress
Artificial Mitochondria Transfer to Mitigate Ischemic Damage in an In Vitro Model of Tubular Injury and in an Ex Vivo Porcine Model of DCD Renal Transplantation
A. Rossi¹, S. Sedrakyan², F. Montali³, C. Aardena⁴, N. Abraham⁵, A. Barbas⁵, L. N. Byers⁶, C. Palles⁷, A. Asthana⁶, J. Robertson⁴, L. Perin², R. Senger⁴, B. Bussolati¹, G. Orlando⁸
¹Un. of Turin, Turin, Italy, ²Children Hospital, Los Angeles, CA, ³Un. of L'Aquila, L'Aquila, Italy, ⁴VA Tech, Blacksburg, VA, ⁵Duke, Durham, NC, ⁶WFIRM, Winston Salem, NC, ⁷University of Florida, Gainesville, FL, ⁸Wake Forest Baptist, Winston-Salem, NC
*Purpose: We aimed at assessing whether artificial mitochondrial transfer (AMT) mitigates renal injury in an in vitro model of tubular damage and in an ex…
2022 American Transplant Congress
Delivery of Extracellular Matrix Targeted Regulatory T Cells by Novel Nanofiber Coatings for Transplantation Therapies
L. Gallon¹, J. K. Carrow², J. He¹, Y. Sambandam¹, X. Lai¹, J. Mathew¹, L. C. Palmer², J. R. Leventhal¹, Z. Zhang¹, S. I. Stupp²
¹Surgery - Transplant, Northwestern University, Chicago, IL, ²Simpson Querrey Institute, Northwestern University, Chicago, IL
*Purpose: Regulatory CD4+CD25+FOXP3+ T cells (Tregs) have been shown to induce tolerance in transplantation models and can mitigate transplant rejection or injury following ischemic reperfusion…
2022 American Transplant Congress
Donor Genetic Background Predisposes Differentiation and Accumulation of Regulatory T Cells in the Kidney Allografts
X. Lai¹, J. Wang¹, S. Han¹, C. Chunlei¹, L. VanOsdol¹, L. Gallon², J. Leventhal², M. Kandpal¹, Z. Zhang¹
¹Comprehensive Transplant Center, Microsurgery core, Northwestern University Feinberg School of Medicine, Chicago, IL, ²Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL
*Purpose: We have previously demonstrated that donor kidney-intrinsic innate immunity determines the severity of delayed graft function (DGF) in kidney transplantation and potentiates long kidney…
2021 American Transplant Congress
Not Quite Right: The Irony of Longer Cold Times for Higher KDPI Kidneys
H. Ghali¹, D. Won¹, S. Yoon¹, A. Friedman²
¹Systems Science and Industrial Engineering, SUNY Binghamton, Binghamton, NY, ²LiveOnNY, New York, NY
*Purpose: To identify tactics for reduction of the kidney discard rate, we analyzed measurable, operational factors contributing to the key outcome of transplantation (TXP) or…
2021 American Transplant Congress
Mapping Chronic Kidney Disease (CKD) and Acute Kidney Injury (AKI) in Kidney Transplant Biopsies Reveals Two Classes of Early AKI That Differ in Their Response-to-Wounding
P. Halloran¹, J. Reeve¹, G. Böhmig², O. Viklicky³, M. Myslak⁴, G. Gupta⁵, &. the INTERCOMEX Study Group⁶
¹Alberta Transplant Applied Genomics Centre, Edmonton, AB, Canada, ²Medical University of Vienna, Vienna, Austria, ³Institute for Clinical and Experimental Medicine, Prague, Czech Republic, ⁴Pomeranian Medical University, Szczecin, Poland, ⁵Virginia Commonwealth University, Richmond, VA, ⁶., ., AB, Canada
*Purpose: We recently analyzed injury-induced molecular changes in kidney transplant biopsies using principal component analysis (PCA) (AJT https://doi.org/10.1111/ajt.16374). PC1 reflected all injury, PC2 distinguished early…
2021 American Transplant Congress
Estrogen Receptor Beta Deletion is Protective in Renal Ischemia Reperfusion Injury in a Renal Specific Manner
C. S. O'Brien, P. Hernandez, Z. Wang, G. Ge, W. Hancock, M. H. Levine
Surgery, University of Pennsylvania, Philadelphia, PA
*Purpose: Renal Ischemia Reperfusion Injury (IRI) is a major contributor to delayed graft function (DGF) in kidney transplantation. Previously, we have shown lower rates of…
2021 American Transplant Congress
Patterns and Inhibition of Cell Death During Static Cold Storage of Human Kidneys
J. R. DiRito¹, G. Chickering², J. T. Langford¹, D. Stern¹, S. Hosgood³, M. L. Nicholson³, E. Gavathiotis⁴, R. N. Kitsis⁵, M. Saltzman², J. S. Pober⁶, G. T. Tietjen⁷
¹Surgery, Yale School of Medicine, New Haven, CT, ²Biomedical Engineering, Yale University, New Haven, CT, ³Surgery, University of Cambridge, Cambridge, United Kingdom, ⁴Biochemistry and Medicine, Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, NY, ⁵Surgery, Albert Einstein College of Medicine, Bronx, NY, ⁶Immunobiology, Yale University, New Haven, CT, ⁷Surgery and Biomedical Engineering, Yale School of Medicine, New Haven, CT
*Purpose: As the donor population continues to age and accumulate co-morbidities, more marginal kidneys are being retrieved for transplantation. However, estimates suggest that more than…
2021 American Transplant Congress
Sigma-1 Receptor Agonists are Renoprotective in Experimental Kidney Transplantation
A. Hosszu¹, T. Lakat¹, A. Toth¹, D. Balogh¹, J. Hodrea¹, L. J. Wagner², A. J. Szabo¹, A. Fekete¹
¹1st Department of Pediatrics, Semmelweis University, Budapest, Hungary, ²Department of Transplantation and Surgery, Semmelweis University, Budapest, Hungary
*Purpose: Kidney transplantation (Tx) is associated with better quality of life and reduced costs compared to dialysis, but the shortage in donor organs is a…
2021 American Transplant Congress
Effect of Defibrotide on Kidney Ischemia Reperfusion Injury in a Preclinical Renal Transplant Model
P. Pine¹, Z. Sun², A. Matas³, J. Shi¹, A. Ebrahimnejad¹, M. Zanette⁴, P. Halloran⁵, J. S. Bromberg⁶, R. Hanvesakul⁷
¹Jazz Pharmaceuticals, Palo Alto, CA, ²Johns Hopkins Medicine, Baltimore, MD, ³Univ of Minnesota, Minneapolis, MN, ⁴Jazz Pharmaceuticals, Philadelphia, PA, ⁵Univ of Alberta, Edmonton, AB, Canada, ⁶Univ of Maryland School of Medicine, Baltimore, MD, ⁷Jazz Pharmaceuticals, Oxford, United Kingdom
*Purpose: Ischemia reperfusion injury (IRI) is a major contributor to graft failure. During organ removal and preservation, ischemia results in anaerobic respiration and cellular damage.…