Articles tagged "Apoptosis"

2020 American Transplant Congress
Inhibiting NLRP3 Inflammasome Ameliorates Glucose Fluctuation Through Reducing Apoptosis and Infiltration of Inflammatory Cells after Intraportal Islet Transplantation in Rodent Model
G. Yoshimatsu, T. Matsuoka, K. Chinen, N. Sakata, S. Kodama
Department of Regenerative Medicine and Transplantation, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
*Purpose: Islet transplantation is a useful treatment option for insulin dependent diabetes mellitus with severe hypoglycemic event. However, intraportal islet transplantation is known to induce…
2020 American Transplant Congress
Prolonged Cold Ischemia Increases Reactive Oxygen Species Activates Autophagy by Enhancing Glycolysis in the Graft Through the mTOR Signaling Pathway in Orthotopic Lung Transplantation of Rats
H. Lin¹, S. Dai², W. Liu³, X. Lin², B. Yu², S. Chen³, S. Liu², J. Tang²
¹Thoracic Surgery, Wuhan University, Renmin Hospital, Wuhan, China, ²Thoracic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China, ³Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
*Purpose: The aim of the present study is to investigate the mechanisms by which prolonged CI influences the autophagy in the graft lung, in which…
2020 American Transplant Congress
Protective Effect of Fucoidan Against Tacrolimus-Induced Nephrotoxicity in LLC-PK1 Cells
H. J. Jang
Surgery, University of Ulsan, Gangneung Asan Hospital, Gangneung, Korea, Republic of
*Purpose: Tacrolimus (FK506) is an immunosuppressant agent that is frequently used to prevent rejection of solid organs upon transplant. However, nephrotoxicity due to apoptosis and…
2020 American Transplant Congress
Predominant Role of Microvascular Injury and Rarefaction Function as Drivers of Progressive Renal Damage and Fibrosis Post Mild and Severe Acute Ischemia-Reperfusion Injury
S. Lan¹, B. Yang¹, J. Sabo-Vatasescu², M. Bourgault², A. Karakeussian-Rimbaud³, J. Turgeon³, S. Qi¹, N. Patey⁴, M. Dieudé⁵, M. Hébert¹
¹Medicine Faculty, CRCHUM, CDTRP, University of Montreal, Montreal, QC, Canada, ²CRCHUM, Montreal, QC, Canada, ³CRCHUM, CDTRP, Montreal, QC, Canada, ⁴Medicine Faculty, CRCHUM, Saint Justine Hospital, University of Montreal, Montreal, QC, Canada, ⁵CRCHUM, CDTRP, University of Montreal, Montreal, QC, Canada
*Purpose: Ischemia-reperfusion injury (IRI) is a major risk factor for chronic renal failure. Here, we characterize the different cell deaths in tubular and microvascular compartments…
2020 American Transplant Congress
Caspase-1 Knockout Mice Have Increased Survival after Cold Ischemia in a Murine Kidney Transplant Model
S. Jain¹, R. Plenter², T. Nydam², A. Jani¹
¹Renal, University of Colorado, Aurora, CO, ²Transplant Microsurgery Program, University of Colorado, Aurora, CO
*Purpose: Prolonged cold ischemia (CI) is a known risk factor for acute kidney injury (AKI) after kidney transplantation. However, the mechanism by which CI leads…
2020 American Transplant Congress
Immunomodulation with FasL Presenting Biomaterials Achieves Long-Term Survival of Allogeneic Islets in the Absence of Chronic Immunosuppression in a Non-Human Primate Model
J. Lei¹, H. Deng¹, T. Chen¹, K. Lee¹, C. Peters¹, Z. Yang¹, K. Deng¹, G. Rickert¹, I. Rosales¹, N. Serifis¹, M. Coronel², M. Hunckler², E. Yolcu³, H. Shirwan³, A. García², J. Markmann¹
¹Surgery, Mass General, Boston, MA, ²School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, ³School of Mechanical Engineering, University of Louisville School of Medicine, Louisville, KY
*Purpose: The full potential of islet transplantation will only be realized by the development of tolerogenic strategies that obviate the need for maintenance immunosuppressants. We…
2020 American Transplant Congress
3D Bioprinted Intrahepatic Cholangiocarcinoma Model and 7-Day Perfusion with Gemcitabine and Cisplatin: Modeling the Tumor Microenvironment and Response to Chemotherapy
A. M. Chen¹, W. Zhang¹, J. Sterner², L. Kennedy³, A. Isidan¹, E. Gramelspacher¹, H. L. Francis³, G. Alpini³, L. J. Smith², P. Li¹, B. Ekser¹
¹Division of Transplant Surgery - Indiana University, Indianapolis, IN, ²3D Bioprinting Core and Department of Radiology and Imaging Sciences - Indiana University, Indianapolis, IN, ³Division of Gastroenterology, Richard L. Roudebush VA Medical Center and Indiana University, Indianapolis, IN
*Purpose: Over 8,000 patients are newly diagnosed with cholangiocarcinoma (CCA) in the United States each year.Understanding the CCA microenvironment will facilitate the development of novel…
2020 American Transplant Congress
Endothelial Cells Internalize Apoptotic Exosome-Like Vesicles Through Phosphatidylserine-Dependent Macropinocytosis
F. Migneault, M. Dieudé, A. Brodeur, N. Thibodeau, D. Beillevaire, M. Hébert
CRCHUM, Montreal, QC, Canada
*Purpose: Ischemia-reperfusion and rejection favor endothelial apoptosis, which in turn contributes to maladaptive vascular repair leading to transplant vasculopathy. Apoptotic endothelial cells (EC) release exosome-like…
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
Apoptotic Exosome-Like Vesicles are Associated with Alloimmune Vascular Injury in Kidney Transplant Recipients
M. Dieude¹, E. Boilard², I. Allaeys², A. Deneault-Marchand¹, J. Turgeon¹, E. Dore², S. Lariviere-Beaudoin¹, A. Karakeussian-Rimbaud¹, S. Collette³, L. Senecal³, M. Hebert¹, H. Cardinal¹
¹Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada, ²Centre de Recherche du Centre Hospitalier de l'Université de Québec, Quebec, QC, Canada, ³Hopital Maisonneuve-Rosemont, Montreal, QC, Canada
*Purpose: There is no non-invasive biomarker of alloimmune vascular injury. We have previously characterized exosome-like vesicles enriched in active proteasome and LG3 (ApoExo) that are…