Articles tagged "Tolerance"

2020 American Transplant Congress
Thalidomide and Dexamethasone Combinatorial Treatment Induces Tolerogenic Signals by Systemic Immunomodulation of T Cells and Dendritic Cells
B. Kim¹, E. Kim², J. Kim², H. Choi³, H. Lee², J. Lee⁴, M. Kim⁴, Y. Kim⁴, K. Huh⁴
¹Department of Internal Medicine, Yonsei University Health System, Seoul, Korea, Republic of, ²The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea, Republic of, ³Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea, Republic of, ⁴Department of Transplantation Surgery, Yonsei University Health System, Seoul, Korea, Republic of
*Purpose: Preventing or reducing allograft rejection is critical in organ transplantation, and the need for immune modulation rather than immune suppression has been emphasized. Many…
2020 American Transplant Congress
The Fibrinogen-Like Protein 2 Molecule Influences the Development of Thymic Regulatory T-Cells
C. Lam¹, S. Moshkelgosha¹, G. A. Levy², A. Chruscinski³, S. C. Juvet⁴
¹Latner Thoracic Surgery Research Laboratories, University Health Network, Toronto, ON, Canada, ²Multi Organ Transplant Program, University Health Network, Toronto, ON, Canada, ³Toronto General Hospital Research Institute (TGHRI), University Health Network, Toronto, ON, Canada, ⁴Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada
*Purpose: Transplantation is the primary treatment for patients with end-stage organ failure. However, long-term outcomes are limited by immunosuppressant toxicities and chronic graft rejection. Identifying…
2020 American Transplant Congress
Tolerant Liver Transplant Patients Have Higher Level of Y RNA Fragments in the Circulation
C. Kuscu¹, A. Wolen¹, A. Bajwa¹, C. Kuscu¹, J. Eason², B. Ramaswami³, D. Maluf¹, G. Mazariegos³, G. Chalasani³, V. Mas¹
¹Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, University of Tennessee Health Science Center, Memphis, TN, ²James D. Eason Transplant Institute, Department of Surgery, University of Tennessee Health Science Center, Memphis, TN, ³Thomas E. Starzl Transplantation Institute, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA
*Purpose: Tolerance post transplantation continue to be the ultimate goal in transplantation. Circulating small RNAs are one of the best candidates for biomarker studies. To…
2020 American Transplant Congress
A Proof-of-Principle Study to Evaluate Autologous Hematopoietic Stem Cell Transplantation for Allogeneic Organ Transplant Tolerance (ASCOTT)
A. Chruscinski¹, S. Juvet¹, S. Moshkelgosha¹, E. Renner¹, L. Lilly¹, N. Selzner¹, C. Bredeson², O. Adeyi¹, S. Fischer¹, A. Demetris³, J. Zhang¹, M. Epstein¹, A. Clement², K. Khalili¹, Z. Galvin¹, A. Humar¹, T. Kim¹, K. Tinckham¹, T. Yi¹, G. Levy¹, H. Atkins²
¹Multi-Organ Transplantation, University Health Network, Toronto, ON, Canada, ²The Ottawa Hospital, Ottawa, ON, Canada, ³University of Pittsburgh, Pittsburgh, PA
*Purpose: Long-term survival of recipients of solid organ transplants is limited by chronic rejection, disease recurrence and immunosuppression-induced toxicity. Self-tolerance is established after autologous hematopoietic…
2020 American Transplant Congress
Unique Genomic & Proteomic Profile of Liver Mesenchymal Stromal Cells is Associated with Their Superior Immunomodulatory Properties
F. Yigitbilek, W. D. Park, N. Abrol, M. D. Stegall, T. Taner
Transplant Center, Mayo Clinic, Rochester, MN
*Purpose: Investigating mechanisms of liver allografts’ relative tolerance, we recently reported that liver mesenchymal stromal cells (L-MSC) are superior in their capacity to inhibit alloimmune…
2020 American Transplant Congress
Intra-Lymph Node Injection of Microparticles Reprograms the Laminin Stromal Network to Prolong Allograft Survival
C. M. Paluskievicz¹, Y. Xiong¹, W. Piao¹, M. Willson-Shirkey¹, H. Eppler², C. M. Jewell², J. S. Bromberg¹
¹U Maryland, Baltimore, MD, Baltimore, MD, ²U Maryland, College Park, MD, College Park, MD
*Purpose: Microparticles (MPs) carrying peptide antigen with immune signals can be directly delivered to lymph nodes (LNs) to induce pro-inflammatory or anti-inflammatory responses. We hypothesized…
2020 American Transplant Congress
Cmv Infection Sensitizes Transplant Recipients by Promoting Alloreactive T Cell Response
S. Yu, A. Dangi, X. Luo
Nephrology/Medicine, Duke University, Durham, NC
*Purpose: Cytomegalovirus (CMV) infection has been associated with allograft rejection in immunosuppressed transplant recipients. We have previously shown that acute CMV infection impairs the induction…
2020 American Transplant Congress
Costimulatory Signal Impacts Car Treg Fate and Function in Transplantation
B. Lamarthée¹, A. Marchal¹, S. Charbonnier¹, T. Blein¹, K. Vogt², M. Titeux¹, N. Pallet³, M. Delville¹, E. Six¹, D. Anglicheau⁴, C. Legendre⁴, B. Sawitzki², J. Taupin⁵, M. Cavazzana¹, I. André¹, J. Zuber¹
¹Inserm U1163, Institut Imagine, Paris, France, ²Department of Immunology, Charité University Hospital, Berlin, Germany, ³Inserm U1147, Centre Universitaire des Saints Pères, Paris, France, ⁴Service de Transplantation Rénale Adulte, Assistance Publique–Hôpitaux de Paris, Hôpital Necker, Paris, France, ⁵Inserm U1160, Centre Hayem, Paris, France
*Purpose: Donor-specific regulatory T-cell (Treg) therapy has emerged as a potent strategy to promote immune tolerance in experimental transplantation. However, a major stumbling block in…
2020 American Transplant Congress
Transplant Relevant MDSC Genetics: Differential Gene Expression Profiles of Immunosuppressive Myeloid-Derived Suppressor Cells Induced by Granulocyte-Colony Stimulating Factor
Y. S. Lee, J. S. Bromberg, J. R. Scalea
Department of Surgery, University of Maryland, Baltimore, MD
*Purpose: Myeloid-derived suppressor cells (MDSC) are expanded in inflammation conditions and can control alloreactive T cell responses. Granulocyte-colony stimulating factor (GCSF) is known to induce…
2020 American Transplant Congress
Circulating Exosomes with Cardiac Self-Antigens, Myosin and Vimentin, Induced Immune Responses Leading to Rejection Following Heterotopic Cardiac Transplantation Immunosuppressed with mTOR Inhibitor and Low Dose of IL-2 Therapy
Y. Itabashi, R. Ravichandran, S. Bansal, T. Fleming, T. Mohanakumar
Norton Thoracic Institute, St. Joseph’s Hospital and Medical Center, Phoenix, AZ
*Purpose: The aim of the study is to determine the role for circulating exosomes with cardiac self-antigens (SAgs) (Myosin, Vimentin) in the development of immune…