2022 American Transplant Congress
Contributions of Allogenicity and Antigen Presentation to Regulatory B Cell Suppression
Center for Transplantation Sciences, Boston, MA
*Purpose: We previously generated in vitro Toll-like receptor (TLR)-activated B cells became regulatory B cells (Bregs) that suppress T cell proliferation and promote allograft tolerance.…2022 American Transplant Congress
Abnormal B Cell Profile Associated with Inadequate Antibody Response to MRNA SARS-COV-2 Vaccine Can Be Overcome with a Third Vaccine Dose in Adolescent Kidney Transplant Recipients
Pediatrics, UCSD Rady Children's, San Diego, CA
*Purpose: mRNA SARS-CoV-2 vaccines are highly efficacious in the general population but have shown a diminished response in immunosuppressed adolescent kidney allograft recipients. We investigated…2022 American Transplant Congress
Specificity and Avidity of Donor MHC-Specific B Cells in Naive, Rejecting and Tolerant Mice
*Purpose: Antibody-mediated rejection is recognized as an important mediator of graft loss in the clinic, and the induction of donor-specific B cell tolerance may contribute…2022 American Transplant Congress
Circulating and Intragraft Donor (HLA)-Specific B Cells Drive Allograft Rejection After Kidney Transplantation
*Purpose: Besides donor-specific antibodies (DSA), circulating donor(HLA)-specific memory B cells (mBc) have also shown to play a deleterious role driving antibody-mediated rejection (ABMR) in kidney…2022 American Transplant Congress
Pre-Emptive Rituximab Use for Epstein-Barr Virus (EBV) Viremia in Cardiothoracic Solid Organ Transplant Recipients
University of Chicago Medicine, Chicago, IL
*Purpose: EBV viremia is associated with potentially life-threatening post-transplant lymphoproliferative disorders (PTLD) after solid organ transplantation. The utility of rituximab for treating EBV viremia in…2022 American Transplant Congress
Donor-Specificb Cell Dysfunction and Suppressive Ability Are Differentially Induced in Cob-Mediated Transplantation Tolerance
*Purpose: B cells in mice tolerized to fully mismatched heart allografts with anti-CD154+donor spleen cells (CoB) are intrinsically dysfunctional and unable to differentiate into germinal…2022 American Transplant Congress
Regulatory T and B Cell Responses Are Equally Compromised During Antibody-Mediated Rejection of Kidney Allografts
*Purpose: Although considerable advances have been made in understanding the cellular effector mechanisms responsible for donor-specific antibody (DSA) generation leading to antibody-mediated rejection (ABMR), the…2022 American Transplant Congress
Identification of a Human B Cell State with Allogeneic Antigen Cross-Presenting Potential
Radiation Oncology, Dana-Farber Cancer Institute, Boston, MA
*Purpose: B cells are known to play a significant role in allograft tolerance or rejection, largely determined by production of cytokines and antibodies that suppress…2022 American Transplant Congress
Optimal Development and Effector Function of Antibody-Suppressor CXCR5+CD8+ T Cells Requires Host IFN-γ and CD4+ T Cells
*Purpose: We reported the discovery of a novel subset of CXCR5+IFNγ+CD8+ T cells that suppresses antibody production (CD8+ TAb-supp cells). Alloprimed CD8+ TAb-supp cells significantly…2022 American Transplant Congress
Single Cell And Spatial Transcriptomics Of Blood And Biopsies Reveals Enhanced Alloantigen Presenting Function And T-follicular Helper Cell (tfh) Expansion Early After Pediatric Liver Transplantation
*Purpose: We have previously reported enhanced B-cell presentation of donor antigen during early T-cell mediated liver transplant (LT) rejection.*Methods: To characterize B-cell related immunological mechanisms…
- « Previous Page
- 1
- 2
- 3
- 4
- 5
- …
- 35
- Next Page »