Articles tagged "Mice"

2017 American Transplant Congress
Suppression of T Cell Proliferation by CpG-Activated B Cells Depends on Granzyme-B and Cell-Cell Contact, but Not on IL-10.
L. Kojima,¹ S. Kimura,^1,2 K. Lee,¹ C. Schuetz,¹ L. Washburn,¹ K. Deng,¹ H. Tector,¹ B. Amundsen,^1,2 D. Ndishabandi,^1,2 A. Markmann,¹ M. Markmann-Porch,¹ T. Oura,¹ A. Alessandrini,^1,2 J. Kim,¹ H. Yeh,^1,2 J. Markmann.^1,2
¹Center for Transplantation Sciences, Massachusetts General Hospital, Boston, MA; ²Transplantation Unit, Department of Surgery, Massachusetts General Hospital, Boston, MA
Background: Our previous studies document the potent capacity of regulatory B cells (Bregs) to mitigate allograft immunity. However, we have been largely unsuccessful in demonstrating…
2017 American Transplant Congress
Combining Neural Stem Cell Transplantation with Mixed Hematopoietic Chimerism Promotes Restoration of Self-Tolerance in Established Experimental Autoimmune Encephalomyelitis.
W. Orent, J. Marino, B. Gonzalez Nolasco, J. Paster, A. Harney, D. Sachs, G. Benichou.
Surgery, Massachusetts General Hospital, Boston, MA
Multilineage mixed hematopoietic chimerism induces tolerance to alloantigens in rodents, large animals and kidney-transplanted patients. Here we combined mixed chimerism with neural stem cell (NSC)…
2017 American Transplant Congress
Persistent Donor Antigen Leads to Dysfunctional CD4⁺Memory T Cell Development.
M. Miller,¹ Y. Wang,¹ L. Chen,¹ Y. Lei,¹ M. Daniels,^2,3 E. Watkins,⁴ C. Mora Solano,² C. McIntosh,¹ N. Isaad,⁵ A. Chong,² M.-L. Alegre.¹
¹Medicine, University of Chicago, Chicago, IL; ²Surgery, University of Chicago, Chicago, IL; ³Chicago State University, Chicago, IL; ⁴Institute for Molecular Engineering, University of Chicago, Chicago, IL; ⁵Committee on Cancer Biology, University of Chicago, Chicago, IL
Tolerance to alloantigens is characterized by low alloreactive T cell responses upon restimulation with donor antigens, a state that can result from deletion of donor-specific…
2016 American Transplant Congress
A Novel Humanized Mouse Model Incorporating Non-Fetal Tissue.
M. Brown, I. Norman, Y. Zhou, W. Lou, J. Sullivan, W. Burlingham.
Surgery/Transplant Division, University of Wisconsin-Madison, Madison, WI.
Pre-clinical research into allogeneic tissue transplantation therapies, as well as patient-specific regenerative medicine studies, require animal models that closely mimic the typical patient's immune response.…
2016 American Transplant Congress
TGFb in Regulatory B Cells-Dependent Tolerance.
H. Deirawan, L. Kojima, L. Washburn, J. Markmann, J. Kim.
Surgery, Massachusetts General Hospital, Boston, MA.
In transplantation, increasing evidence support that B cells can play a major regulatory role in addition to their critical functions in allo-immunity and graft rejection.…
2016 American Transplant Congress
HO-1/SIRT1/p53 Axis Regulates Macrophage Activation and Attenuates Liver Ischemia-Reperfusion Injury in Mice.
K. Nakamura,¹ M. Zhang,² B. Ke,¹ S. Kageyama,¹ R. Busuttil,¹ J. Araujo,² J. Kupiec-Weglinski.¹
¹Surgery, Liver Transplant, University of California-Los Angeles, Los Angeles, CA; ²Medicine, Division of Cardiology, University of California-Los Angeles, Los Angeles, CA.
Background/Aim: The mechanism by which macrophage heme oxygenase-1 (HO-1)-Sirtuin1 (SIRT1) signaling promotes resistance against inflammation response in liver ischemia-reperfusion injury (IRI) remains elusive. As tumor…
2016 American Transplant Congress
Local Infusion of MyD88 Inhibitor Inhibits Ischemia-Reperfusion Kidney Injury.
H. Cho,^1,3 J. Lee,^1,4 H. Kim,^1,2 Y. Han,² B. Kwon,^1,2 S. Park,^1,3 K. Park.⁴
¹Biomedical Research Center, Ulsan University Hospital, School of Medicine, University of Ulsan, Ulsan, Republic of Korea; ²School of Biological Sciences, University of Ulsan, Ulsan, Republic of Korea; ³Department of Surgery, Ulsan University Hospital, School of Medicine, University of Ulsan, Ulsan, Republic of Korea; ⁴Department of Internal Medicine, Ulsan University Hospital, School of Medicine, University of Ulsan, Ulsan, Republic of Korea.
We have previously shown that tubular epithelial cells play a central role in regulating ischemia-reperfusion kidney injury (K-IRI). Tubular epithelial cells damaged by hypoxic insult…
2016 American Transplant Congress
Function of Sertoli Cells in Regulating Allogeneic T Cell Differentiation into Treg and Th17 In Vitro.
L. Xie,¹ W. Jiang.²
¹Institute of Organ Transplantation, Tongji Hospital, HUST, Wuhan, China; ²Department of Rheumatology, China-Japan Friendship Hospital, Beijing, China.
The testis as an immune-privileged site allows long-term survival of allogeneic and xenogeneic transplants. Testicular Sertoli cells (SCs) can confer local immunoprotection for cotransplanted cells…
2016 American Transplant Congress
NK Cells Play a Critical Role in Mediating Inflammation and Graft Failure During Antibody-Mediated Rejection of Kidney Allografts.
T. Tanaka,^1,2 N. Kohei,¹ N. Dvorina,¹ A. Valujskikh,¹ W. Baldwin 3rd,¹ R. Fairchild.¹
¹Department of Immunology, Cleveland Clinic, Cleveland, OH; ²Department of Urology, Sapporo Medical University School of Medicine, Sapporo, Japan.
While the incidence of antibody-mediated kidney graft rejection has increased, the key cellular and molecular participants underlying this graft injury remain unclear. We have previously…
2016 American Transplant Congress
Early Alloantibody Responses Against Donor MHC Class I and Class II Molecules Are Differentially Affected by Prolonged Cold Ischemia Storage of Renal Allografts.
V. Gorbacheva, R. Fan, W. Baldwin, A. Valujskikh.
Immunology, Cleveland Clinic Foundation, Cleveland, OH.
Prolonged cold ischemia storage (CIS) of donor transplants is a major risk factor for acute and chronic graft tissue injury. Despite strong clinical correlations between…