2022 American Transplant Congress
Lymphotoxin Beta Receptor Classical NFkB Signaling in Lymphatic Endothelial Cells Drives Treg Tissue Stability
1University of Maryland School of Medicine, Baltimore, MD, 2University of Minnesota, Minneapolis, MN
*Purpose: Regulatory T cell (Treg) suppressor function and allograft protection depend on maintenance of transcription factor Foxp3 expression and lymphatic migration, respectively. Treg lymphotoxin (LT)…2022 American Transplant Congress
Treg Migration and Suppression Require Engagement with Lymphotoxin Beta Receptor on Lymphatic Endothelial Cells to Protect Islet Allografts
1University of Maryland School of Medicine, Baltimore, MD, 2University of Minnesota, Minneapolis, MN
*Purpose: Treg sequential migration from graft to draining lymph nodes (dLN) via afferent lymphatics is required for Treg suppressive function. Treg lymphotoxin alpha beta (LTαβ)…2021 American Transplant Congress
Lymphotoxin Beta Receptor Regulates Treg Migration and Suppression by Modulating Draining Lymphatic Structure
1U Maryland, Baltimore, MD, 2Harvard U, Boston, MA
*Purpose: Regulatory T cells (Treg) must migrate from tissues via lymphatic vessels (LV) to the draining lymph node (dLN) to induce tolerance. During migration, Treg…2021 American Transplant Congress
The Hepatoprotective Role of Innate Lymphoid Cells in Liver Transplantation
The Dumont-UCLA Transplantation Center, Los Angeles, CA
*Purpose: Although NKp46+group 3innate lymphoid cells (ILCs) (RORγt+IL-22-producing NKp46+cells) were reported to protect liver against ischemia-reperfusion injury (IRI), no study has demonstrated the contribution of…2021 American Transplant Congress
Myeloid Foxo1-β-catenin Axis Regulates Hedgehog/Gli1 Signaling and Controls NLRP3-Mediated Innate Immune Responses in Sterile Inflammatory Liver Injury
Surgery, Dumont - UCLA Transplant Center, Los Angeles, CA
*Purpose: Foxo1 plays important roles in cell metabolism, oxidative stress, inflammation, and apoptosis. Activation of Hedgehog/Gli1 signaling regulates cell growth, differentiation, and immune function. However,…2021 American Transplant Congress
Treg Engagement of Lymphotoxin Beta Receptor in Lymphatic Endothelial Cells is Required for Allograft Protection
1U Maryland, Baltimore, MD, 2Harvard U, Boston, MA
*Purpose: Sequential migration of regulatory T cells (Treg) from graft to afferent lymphatics and lymph nodes (LN) is needed for Treg suppressive function. Migration requires…2021 American Transplant Congress
LTβR Engagement Regulates Treg Migration, Stability and Suppressor Function
1U Maryland, Baltimore, MD, 2Harvard U, Boston, MA
*Purpose: Regulatory T cell (Treg) lymphatic migration and maintenance of transcription factor Foxp3 expression are required for suppressor function and allograft protection. Treg stimulate lymphotoxin…2021 American Transplant Congress
CEACAM1 Signaling is Essential to Elicit Tim-3 Inhibitory Regulation in Liver Transplantation
The Dumont-UCLA Transplantation Center, Los Angeles, CA
*Purpose: T cell immunoglobulin domain and mucin domain-3 (TIM-3) has been reported to induce T cell exhaustion. By alleviating hepatic ischemia-reperfusion injury, we have explored…2021 American Transplant Congress
Laminins Differentially Regulate Adaptive Alloimmune Responses
1Surgery, UMB, Baltimore, MD, 2CVID, UMB, Baltimore, MD, 3Harvard University, Boston, MA
*Purpose: Lymph node (LN) stromal cell expressed laminin α4 (Lama4) and laminin α5 (Lama5) fibers are associated with tolerance and immunity, respectively. They regulate cell…2020 American Transplant Congress
Novel Role of Qa-1, a Murine Homolog of HLA-E, in Controlling Follicular Helper T Cells During Humoral Alloimmunity
*Purpose: Antibody-mediated rejection (AMR) is a major challenge in prolonging allograft survival. Limited insight into the humoral alloimmunity hinders the development of therapeutic strategies. We…
American Transplant Congress abstracts