2022 American Transplant Congress
Antibody Response and Cellular Phenotyping in Kidney Transplant Recipients Following Sars-CoV-2 Vaccination
*Purpose: Correlates of protection for SARS-CoV-2 vaccines are not well-established in kidney transplant recipients(KTRs). Studies have highlighted the importance of neutralizing antibodies(Abs), however data suggests…2022 American Transplant Congress
Assessment of Humoral and Cellular Immune Responses to Sars Cov-2 Vaccination in Immunocompromised Renal Allograft Recipients
Cedars-Sinai Medical Center, Los Angeles, CA
*Purpose: SARS CoV-2 vaccination elicits both robust humoral and T-cell immune responses in healthy individuals. However, a comprehensive assessment of immune responses to SARS-CoV-2 vaccination…2022 American Transplant Congress
Novel Immune Checkpoint Molecule TIGIT Mediates Experimental Kidney Ischemia Reperfusion Injury
Medicine, Johns Hopkins University, Baltimore, MD
*Purpose: T cells play both pathogenic and reparative roles in kidney ischemia reperfusion injury (IRI) but the molecular mechanisms regulating kidney T cell functions are…2022 American Transplant Congress
Neuropilin-2 is a Novel Checkpoint Inhibitor That is Required for Long-Term Allograft Survival
Boston Children's Hospital, Boston, MA
*Purpose: We have previously reported that Neuropilin (NRP) 2-associated signaling events modulate PI3K/mTOR/Akt activity in several human cell lines. While intrinsic NRP1 activity has been…2022 American Transplant Congress
T Cell Overexpression of PD-1 Increases Treg Suppressive Function via an ICOS-Dependent Mechanism
*Purpose: The PD-1: PD-L1 signaling has inhibitory properties and is a potential therapeutic target in transplantation. We have previously demonstrated that overexpression of PD-1 on…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 RNA Sequencing Identifies the Changes of Human Normal Kidney After Transplantation
*Purpose: We found that in all studies about kidney transplantation and single cell RNA sequencing (scRNA-seq), the native kidney rather than the transplanted kidney was…2022 American Transplant Congress
The Role of T Lymphocyte Subsets in Kidney Transplantation
*Purpose: Impairment of cellular immune function in kidney transplant candidates is not concomitantly restored with the recovery of renal function, as alloimmune response and implementation…2022 American Transplant Congress
TNX-1500, an Fc-Modified Anti-cd154 Antibody, Prolongs Nonhuman Primate Cardiac Allograft Survival
*Purpose: Blockade of the CD40/CD154 T cell costimulation pathway is a promising approach to replace current clinical immunosuppression. TNX-1500 (TNX) is a novel humanized anti-CD154…2022 American Transplant Congress
CD8+ T Cells Differentiate into a CD43-expressing Effector Population After Transplantation
Department of Pathology, Johns Hopkins University, Baltimore, MD
*Purpose: Despite a significantly reduced toxicity profile and improved long-term graft function versus calcineurin inhibitors, widespread adaptation of belatacept (CTLA-4 Ig) has been limited due…
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