Articles tagged "knockout"

2018 American Transplant Congress
Prolongation of Skin Allograft Survival through Dietary Supplementation of Ayrl Hydrocarbon Receptor Ligands
A. Afrazi, L. Owens, J. Fechner, C. O'Driscoll, J. Mezrich.
Transplant Surgery, University of Wisconsin, Madison, WI.
The Aryl Hydrocarbon Receptor (AHR) is a cytosolic transcription factor with numerous endogenous and xenobiotic ligands playing a key role in a number of cellular…
2018 American Transplant Congress
IL23R is a Pathogenic Gene in Type 1 Regulatory T Cells during Mouse Cardiac Transplantation Models
G. Gu, T. Lu, N. Xu, Q. Xia.
Department of Liver Surgery, Renji Hospital, Affiliated by Shanghai Jiaotong University School of Medicine, Shanghai, China.
IL23R has been confirmed to be a pathogenic gene in Th17 cells. However, its role in type 1 regulatory T cells (Tr1 cells) is not…
2018 American Transplant Congress
NOS2 Deficiency Limits Long Term Survival of Murine Kidney Allografts
I. Aljabban,^1,2 B. Jiang,¹ C. Yang,¹ T. O'Shea,¹ D. Ndishabandi,¹ R. White,¹ P. Russell,¹ R. Colvin,¹ J. Madsen,¹ A. Alessandrini.¹
¹Center for Transplantation Sciences, Massachusetts General Hospital, Boston, MA; ²Pennsylvania State University College of Medicine, Hershey, PA.
Nitric oxide (NO) is a small molecule derived from L-arginine that governs a myriad of physiologic processes including the antimicrobial and tumoricidal responses. Although NO…
2018 American Transplant Congress
Loss of HIF-1α in CD4 T Cell Improve Outcome of Mouse Vascularized Osteomyocutaneous Allotransplantation under Costimulation Blockade
C-.H. Lin,^1,2 M. Anggelia,^1,2 H. Yang,³ W. Chuang,⁴ H. Cheng,¹ F-.C. Wei,^1,2 G. Brandacher.⁵
¹PRS, Center for VCA, Chang Gung Memorial Hospital, Taoyuan, Taiwan; ²Chang Gung Medical College and Chang Gung University, Taoyuan, Taiwan; ³Nephrology, Chang Gung Memorial Hospital, Taoyuan, Taiwan; ⁴Pathology, Chang Gung Memorial Hospital, Taoyuan, Taiwan; ⁵PRS, Johns Hopkins University School of Medicine, Baltimore, MD.
Background: Allograft survival depends on the balance of effector T cells (Teff) and regulatory T cells (Tregs). Previous study suggested that the balance is controlled…
2018 American Transplant Congress
Glycolytic Bias in mTORC2-Deficient Dendritic Cells Potentiates Antigen-Specific Immunity and Accelerates Graft Rejection
A. Watson,¹ H. Dai,¹ J. Diaz-Perez,² A. Menk,³ M. Killeen,² G. Delgoffe,³ A. Mathers,² A. Thomson.¹
¹Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA; ²Dermatology, University of Pittsburgh, Pittsburgh, PA; ³Cancer Institute, University of Pittsburgh, Pittsburgh, PA.
The mechanistic target of rapamycin (mTOR) is known to function in two complexes: mTOR complex 1 (mTORC1) and mTORC2. While the function of mTORC1 in…
2018 American Transplant Congress
Lymph Node Stromal Laminins Modulate the Dynamic Balance of the Treg/Th17 Axis
L. Li, T. Simon, W. Piao, Y. Xiong, V. Saxena, T. Zhang, C. Wagner, J. Bromberg.
University of Maryland, Baltimore, MD.
Background: Tolerance and immunity are associated with differential expression of lymph node (LN) stromal laminins α4β1γ1 (411) and α5β1γ1 (511), respectively, which determine how alloreactive…
2018 American Transplant Congress
Genetically Modified Porcine Erythrocytes: A Cell Model for Studying Human Preformed Antibody-Dependent Xenoimmune Responses In Vitro
Z. Wang, G. Martens, J. Ladowski, M. Tector, A. Tector.
Surgery, University of Alabama at Birmingham, Birmingham, AL.
Background: Powerful gene editing technology is a promising approach to provide genetically-modified pigs as donors for clinical cell, tissue and organ xenotransplantation. Prior to starting…
2018 American Transplant Congress
Mitochondrial Quality Control through PGC-1α in Syngenic Mouse Heart Transplant
A. Cherry,¹ K. Porter,¹ H. Suliman,¹ J. Wang,² M. Mulvihill,² A. Kirk.²
¹Anesthesiology, Duke University, Durham, NC; ²Surgery, Duke University, Durham, NC.
Intro: Impaired mitochondrial function plays a role in graft dysfunction after transplant, and recovery is facilitated by mitochondrial quality control (MQC). Two key elements of…
2018 American Transplant Congress
Mitochondrial Autophagy Proteins Bnip3 and Nix Maintain Memory B Cell Survival
S. Kodali,¹ H. Sandoval,¹ M. Chen,² J. Wang.¹
¹Immunobiology and Transplant Science Center, Houston Methodist Research Institute, Houston, TX; ²Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX.
Despite the use of immunosuppressive drugs, allograft rejection remains a major hurdle for the long-term success of organ transplants. Burgeoning evidence implicates memory B cells…
2018 American Transplant Congress
T-bet and STAT6 Double Deficiency Favors IL-17 Immunity after Lung Transplantation
F. Liang,¹ R. Chen,¹ Q. Chen,² J. Ochando,³ Y. Ding,¹ J. Xu.¹
¹Department of Immunology, Capital Medical University, Beijing, China; ²Department of Thoracic Surgery, Chaoyang Hospital, Beijing, China; ³Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY.
Background: The long-term success of lung transplantation is mainly limited by the development of obliterative bronchiolitis (OB) in which IL-17 plays a critical role. Direct…