Articles tagged "Mice"

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…
2016 American Transplant Congress
Ibrutinib Suppresses Alloantibody Responses in A Mouse Model of Allosensitization: A Preliminary Report.
G. Wu, I. Kim, N.-N. Chai, A. Klein, S. Jordan.
CTC/Surgery, Cedars-Sinai Medical Center, Los Angeles, CA.
Background Ibrutinib is a Bruton tyrosine Kinase (BTK) antagonist that inhibits B cell receptor (BCR) signaling, therefore blocking B cell activation. Ibrutinib is approved by…
2016 American Transplant Congress
The Fine-Tuning of CXCL8 Protects Kidney Against Ischemia-Reperfusion Injury in Mice Lacking MicroRNA-146a.
L. Amrouche,^1,2 G. Desbuissons,¹ M. Rabant,^1,2 C. Legendre,^1,2 F. Terzi,² D. Anglicheau.^1,2
¹U1151, INSERM, Paris, France, Metropolitan; ²Department of Kidney Transplantation, Necker hospital, Paris, France, Metropolitan.
Acute kidney injury leads to the development of tubular injury and interstitial inflammation that need to be controlled to avoid fibrosis development. We hypothesized that…
2016 American Transplant Congress
Fate of Endogenous Alloreactive B Cells in Transplant Tolerance.
J. Chen,¹ J. Yang,¹ A. Akl,¹ Q. Wang,¹ D. Yin,¹ R. Sciammas,² A. Chong.¹
¹Transplant Surgery, University of Chicago, Chicago, IL; ²Methodist Research Institute, Methodist Medical Center, Houston, TX.
The conceptual underpinning of our studies is that robust tolerance requires multiple mechanisms to enforce functional quiescence of alloreactive T and B cells. While much…
2016 American Transplant Congress
Administration of IL-33 Before Allogeneic Stem Cell Transplantation Expands Recipient Treg That Prevent Graft- vs. Host Disease.
B. Matta,¹ D. Reichenbach,² X. Zhang,¹ B. Koehn,² L. Mathews,¹ C. Feser,² M. Smith,² Q. Liu,¹ R. Zeiser,³ B. Blazar,² H. Turnquist.¹
¹Dept of Surgery and Starzl Transplant Inst, Univ of Pittsburgh Sch of Med, Pittsburgh, PA; ²Dept of Pediatrics, Univ of Minnesota, Minneapolis, MN; ³Univ Med Cntr Freiburg, Freiburgh, Germany.
Background: During allogeneic hematopoietic cell transplantation (alloHCT), non-hematopoietic cell IL-33 is augmented and released by recipient conditioning to promote Type 1 alloimmunity and lethal acute…