Articles tagged "Inflammation"

2019 American Transplant Congress
Toll Like Receptor 2 Mobilizes Regulatory T Cell Lymphatic Migration by Stimulating Lymphotoxin Expression
W. Piao¹, Y. Xiong², L. Li³, V. Saxena³, C. Paluskievicz³, J. Bromberg⁴
¹Microbiology and Immunology, U. Maryland, Baltimore, baltimore, MD, ²Surgery, U. Maryland, Baltimore, baltimore, MD, ³Surgery, U. Maryland, Baltimore, Baltimore, MD, ⁴Surgery and Microbiology and Immunology, U. Maryland, Baltimore, Baltimore, MD
*Purpose: Regulatory T cell (Treg) afferent lymphatic migration is important for islet allograft survival. Treg express high levels of lymphotoxin (LT) and bind the LT…
2019 American Transplant Congress
Recombinant Apoptosis Inhibitor of Macrophage Protein Ameliorates Transplant Ischemia-Reperfusion Injury
J. Y. Lee¹, X. Zhang², D. Lian³, A. R. Haig⁴, T. Miyazaki⁵, L. Gunaratnam⁶
¹Department of Microbiology and Immunology, Western University, London, ON, Canada, ²Matthew Mailing Centre for Translational Transplant Studies, London Health Sciences Centre, London, ON, Canada, ³Matthew Mailing Centre for Translational Transplant Studies, London Health Sciences Centre, Lodnon, ON, Canada, ⁴Department of Pathology, Western University, London, ON, Canada, ⁵Center for Disease Biology and Integrative Medicine, University of Tokyo, Tokyo, Japan, ⁶Department of Medicine, Western University, London, ON, Canada
*Purpose: Ischemia-reperfusion injury (IRI) during kidney transplantation is associated with acute rejection and long-term graft loss. During IRI, pro-inflammatory mediators (e.g. HMGB1) released from necrotic…
2019 American Transplant Congress
Ikaros/IRF4 Signaling Regulates SIRT1-Mediated Macrophage M2 Shift in Liver Ischemia-Reperfusion Injury: From Mouse-to-Human
K. Kadono¹, K. Nakamura¹, H. Hirao¹, S. Kageyama¹, K. J. Dery¹, T. Ito¹, J. Aziz¹, X. Li², B. Ke¹, R. W. Busuttil¹, J. W. Kupiec‐Weglinski¹
¹Dumont-UCLA Transplant Center, UCLA, Los Angeles, CA, ²NIEHS, Durham, NC
*Purpose: Hepatic ischemia-reperfusion injury (IRI) represents a risk factor for early graft dysfunction and rejection in liver transplantation (LT). Despite the efficacy of Sirtuin 1…
2019 American Transplant Congress
CXCL12-CXCR4-Mediated Chemotaxis is a Potential Mechanism for Monocyte Recruitment in Ischemia-Reperfusion Injury in Orthotopic Liver Transplant Patients
A. Q. Terry¹, R. A. Sosa¹, B. V. Naini¹, V. Groysberg¹, F. M. Kaldas², R. W. Busuttil², D. Gjertson¹, J. Kupiec-Weglinski², E. F. Reed¹
¹Pathology and Laboratory Medicine, University of California, Los Angeles, Los Angeles, CA, ²Surgery, University of California, Los Angeles, Los Angeles, CA
*Purpose: Ischemia-reperfusion injury (IRI) elicits cellular damage which lowers allograft survival in orthotopic liver transplant (OLT) patients. Damage-associated molecular patterns, such as high-mobility group box…
2019 American Transplant Congress
Role of NF-kB in Release of Isletokines via Exosomes in Response to Islet Stress
P. Saravanan¹, M. Kanak¹, J. Kalivarathan¹, M. Lawrence², M. Levy¹, B. Naziruddin³
¹Department of Surgery, Virginia Commonwealth University, VCU Health, Richmond, VA, ²Islet Cell Lab, Baylor Scott and White Research Institute, Dallas, TX, ³Simmons Transplant Institute, Baylor Scott and White Medical Center, Dallas, TX
*Purpose: Human islets are exposed to a range of inflammatory stimuli upon transplantation that leads to poor graft survival. Identifying the various signaling events may…
2019 American Transplant Congress
Withaferin A Shifts Circulating Lymphocytes toward Protective T Cell Subsets and Prolongs Islet Allograft Survival in a Mouse Transplant Model
K. Kumano¹, M. Kanak², C. Darden³, S. Vasu¹, Y. Liu⁴, M. C. Lawrence¹, B. Naziruddin⁴
¹Baylor Scott and White Research Institute, Dallas, TX, ²Department of Surgery, Virginia Commonwealth University, Richmond, VA, ³Institute of Biomedical Studies, Baylor University, Waco, TX, ⁴Baylor Simmons Transplant Institute, Dallas, TX
*Purpose: : Immunosuppression protocols improve the efficacy of allogeneic islet transplantation. However, decline in islet graft function and toxicities imposed by current immunosuppressant drugs remain…
2019 American Transplant Congress
Cyclo (his-pro) Protects Against Gentamicin Induced Cell Apoptosis And Cisplatin Induced Acute Kidney Injury Through Inhibiting P53 Mediated Apoptotic Pathway.
Y. Kim¹, J. Moon¹, J. Jeong¹, J. Kim¹, S. Lee¹, M. Yu², C. Lee³, Y. Kim¹, S. Yang⁴
¹Internal Medicine, Seoul National University Hospital, Seoul, Korea, Republic of, ²Internal Medicine, Hanyang University Medical Center, Seoul, Korea, Republic of, ³Internal Medicine, Cheju Halla General Hospital, Cheju, Korea, Republic of, ⁴Kidney Research Institute, Seoul National University Hospital, Seoul, Korea, Republic of
*Purpose: Cyclo(His-Pro) (CHP) is an endogenous cyclic dipeptide that exerts cellular protective effects against anti-oxdative damages. However, the role and mechanisms for CHP in preventing…
2019 American Transplant Congress
Targeting Syk Signaling in Myeloid Cells Protects against Liver Fibrosis and Hepatocarcinogenesis
A. Torres-Hernandez, W. Wang, G. Miller
Surgery, NYU School of Medicine, New York, NY
*Purpose: The purpose of our study was to evaluate the mechanistic role of Spleen Tyrosine Kinase (SYK) signaling on the fibrosis - hepatocarcinogenesis axis and…
2019 American Transplant Congress
IL-6R Blockade with Tocilizumab Increases Tregs and Decreases Early Graft Inflammation in Kidney Transplant Recipients: Results of a Randomized Controlled Trial
S. Chandran, J. Leung, Z. Laszik, Q. Tang, C. Hu, M. Joanes, F. Vincenti
UCSF, San Francisco, CA
*Purpose: IL-6, a proinflammatory cytokine and key regulator of Treg/Th17 balance, is strongly associated with renal graft rejection. We hypothesized that IL-6 blockade with tocilizumab…
2019 American Transplant Congress
Analysis of Islet Exosomal miRNAs Released Post-Transplant in Response to Inflammation
P. Saravanan¹, M. Kanak¹, G. Yoshimatsu², C. Darden², M. Lawrence², M. Levy¹, B. Naziruddin³
¹Department of Surgery, Virginia Commonwealth University, VCU Health, Richmond, VA, ²Islet Cell Lab, Baylor Scott and White Research Institute, Dallas, TX, ³Simmons Transplant Institute, Baylor Scott and White Research Center, Dallas, TX
*Purpose: Islets release miRNAs and other non-coding RNAs via exosomes under various pathological conditions, which are capable of regulating the genes of neighboring and/or distant…