Articles tagged "Autoimmunity"

2022 American Transplant Congress
Perturbations in Podocyte Transcriptome and Biological Pathways Induced by Injury Caused by FSGS Associated Circulating Factors
P. Rashmi¹, T. Sigdel¹, D. Rychkov¹, I. Damm¹, F. Vincenti¹, C. Craik¹, J. Reiser², M. Sarwal¹
¹UCSF, San Francisco, CA, ²Rush University, Chicago, IL
*Purpose: Focal segmental glomerulosclerosis (FSGS) remains a disease without specific therapy for primary disease and a high rate of recurrence after renal transplant. Circulating factors…
2022 American Transplant Congress
Single-Cell Multiomics Defines Tolerogenic Extrathymic Aire-Expressing Cells
A. R. Gupta¹, J. Wang², C. Lareau³, I. Sun², J. Bautista¹, J. Gardner¹
¹Department of Surgery, University of California San Francisco, San Francisco, CA, ²Diabetes Center, University of California San Francisco, San Francisco, CA, ³Department of Pathology, Stanford University, Stanford, CA
*Purpose: The Autoimmune Regulator (Aire) gene, essential for central tolerance through its regulation of tissue-specific antigens in medullary thymic epithelial cells, is also expressed in…
2022 American Transplant Congress
Local Intragraft Humoral Immune Response in Chronic Lung Allograft Dysfunction
E. Miyamoto¹, S. C. Juvet², D. Vosoughi², J. Wang², J. Al-Refaee², T. Daigneault², A. Duong², S. Moshkelgosha², S. Keshavjee², K. Tinckam², A. Chruscinski³, D. Hwang⁴, T. Martinu²
¹Tenri Hospital Japan, University Health Network Canada, Nara, Japan, ²University Health Network, Toronto, ON, Canada, ³Multi-Organ Transplantation, University Health Network, Toronto, ON, Canada, ⁴Sunnybrook Health Science Centre, Toronto, ON, Canada
*Purpose: Donor HLA-specific antibody (DSA) and antibody against self-antigens (self-antigen antibody) can cause injury and lead to chronic lung allograft dysfunction (CLAD) after lung transplantation…
2021 American Transplant Congress
A Phase 1 Study to Evaluate the Safety, Tolerability and Pharmacokinetics of At-1501
S. Perrin¹, A. Gill², C. Gill², P. Gustafson¹
¹Novus Therapeutics, Irvine, CA, ²ALS Therapy Development Institute, Cambridge, MA
*Purpose: Execute a phase 1 study of AT-1501 to assess safety, pharmacokinetics, and functional activity.*Methods: The study employed a placebo-controlled, sequential, dose-escalation design. 28 healthy…
2021 American Transplant Congress
Autoantibodies Against Ro/SS-A, CENP-B, and La/SS-B are Increased in Patients with Kidney Allograft Antibody-mediated Rejection
S. Clotet-Freixas¹, M. Kotlyar², C. M. McEvoy¹, C. Pastrello², S. Rodríguez-Ramírez¹, S. Farkona¹, H. Cardinal³, M. Dieudé³, M. Hébert³, Y. Li¹, O. Famure¹, P. Chen¹, S. Kim¹, E. Chan⁴, I. Jurisica², R. John¹, A. Chruscinski¹, A. Konvalinka¹
¹Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada, ²Krembil Research Institute, University Health Network, Toronto, ON, Canada, ³Centre de Recherche du Centre Hospitalier de l’Université de Montréal, Montreal, QC, Canada, ⁴Department of Medicine, Division of Nephrology, University Health Network, Toronto, ON, Canada
*Purpose: Antibody-mediated rejection (AMR) causes >50% of late kidney graft losses. Although donor-specific antibodies (DSA) against HLA cause AMR, antibodies against non-HLA antigens are also…
2021 American Transplant Congress
Transgenic Beta-cell Cxcl12 Expression and Stem Cell Mobilization Synergize to Suppress Type 1 Diabetes
D. A. Alagpulinsa, A. Jajoo, M. H. Chapin II, M. C. Poznansky
Vaccine & Immunotherapy Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA
*Purpose: Hematopoietic stem and progenitor cells (HSPCs) and regulatory T cells (Tregs) highly express CXCR4, the receptor for the CXCL12 chemokine. This keeps them predominantly…
2021 American Transplant Congress
Recurrence and Outcome of Anti-GBM Glomerulonephritis After Kidney Transplantation: A Belgian Multicenter Study
S. Coche
Nephrology, Cliniques Universitaires Saint-Luc, Brussels, Belgium
*Purpose: Recurrence of anti-glomerular basement membrane (anti-GBM) glomerulonephritis (GN) in the kidney graft is a rare event, described in limited case reports and registry analysis.…
2021 American Transplant Congress
Donor Mhc-independent Islet Rejection in Autoimmune Diabetes: Implications for Stem Cell Therapy
R. G. Gill¹, M. Coulombe², K. S. Beard¹, A. L. Burrack³
¹University of Colorado, Aurora, CO, ²Surgery, University of Colorado, Aurora, CO, ³Mircrobiology and Immunology, University of Minnesota, Minneapolis, MN
*Purpose: Stem cell technology is an attractive approach for generating insulin-producing cells for transplantation in insulin-dependent diabetes and potentially can be genetically modified. One recent…
2020 American Transplant Congress
Single versus Dual Immunosuppression in Liver Transplantation for Autoimmune Liver Diseases
S. Sterling¹, S. Hamel¹, C. Garza¹, I. Feurer², S. Rega², S. Alexopoulos³, M. Izzy⁴
¹Pharmacy, Vanderbilt University Medical Center, Nashville, TN, ²Vanderbilt Transplant Center, Nashville, TN, ³Liver Transplant Surgery, Vanderbilt Transplant Center, Nashville, TN, ⁴Transplant Hepatology, Vanderbilt Transplant Center, Nashville, TN
*Purpose: There is limited evidence on the optimal maintenance immunosuppression after liver transplant (LT) for primary biliary cholangitis (PBC), primary sclerosing cholangitis (PSC), and autoimmune…
2020 American Transplant Congress
T-cell Receptor Deep Sequencing to Distinguish Autoimmune Recurrence from Allograft Rejection in Liver Transplant Patients with Autoimmune Liver Disease
K. J. Yang¹, M. Martinez², B. Shonts¹, C. A. Parks¹, A. Z. Obradovic¹, T. M. Savage¹, E. Spyrou¹, S. Lau¹, M. I. Colquhoun¹, K. Rodgers¹, E. Verna³, S. M. Coley⁴, S. Yang¹, Y. Shen⁵, M. Sykes¹
¹Columbia Center for Translational Immunology, Department of Medicine, Columbia University, New York, NY, ²Department of Pediatrics, Columbia University, New York, NY, ³Department of Medicine, Columbia University, New York, NY, ⁴Department of Pathology, Columbia University, New York, NY, ⁵Center for Computational Biology & Bioinformatics, Department of Systems Biology, Columbia University, New York, NY
*Purpose: Patients who undergo liver transplantation for autoimmune liver disease (ALD) experience high rates of graft failure. The relative roles of recurrent ALD and rejection…