Articles tagged "Pig"

2022 American Transplant Congress
The Renin Angiotensin System (RAS) After Pig-to-Baboon Kidney Transplantation
C. Hansen-Estruch¹, M. H. Bikhet¹, M. Javed¹, D. Ayares², A. Katsurada³, R. Satou³, W. Shao³, D. K. Cooper¹, L. G. Navar³, E. Judd⁴
¹Surgery, University of Alabama at Birmingham, Birmingham, AL, ²Revivicor, Blacksburg, VA, ³Department of Physiology and Hypertension and Renal Center, Tulane University, New Orleans, LA, ⁴Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL
*Purpose: Relatively long-term survival after life-supporting pig-to-baboon kidney transplantation has been achieved. However, there are documented episodes of hypovolemia during the post-transplant period from an…
2022 American Transplant Congress
Histocompatibility Findings in the First Xenotransplants from a Pig to Deceased Human Recipient
M. Mangiola, V. Tatapudi, J. Stern, Z. Stewart Lewis, B. Lonze, N. Ali, R. Montgomery
Transplant Institute, NYU Langone Transplant Institute, New York, NY
*Purpose: Humans lack α-1,3-Gal (α-gal) epitopes, and naturally occurring α-gal antibodies (Abs) cause hyperacute rejection of porcine xenografts. We conducted 2 successful xenotransplants in brain-dead…
2022 American Transplant Congress
First-in-Human Clinical-Grade Porcine Kidney Xenotransplant
J. E. Locke¹, B. Orandi¹, V. Kumar¹, J. Houp¹, D. Anderson¹, V. Hauptfeld¹, D. Martin², C. Killian¹, S. Macedon¹, N. Budd¹, K. Stegner¹, A. Dandro³, M. Kokkinaki³, K. Kuravi³, R. Reed⁴, H. Fatima¹, G. Baker¹, J. Perry¹, E. Bryant¹, M. Cheung¹, E. Erman¹, K. Kraebber¹, T. Gamblin¹, L. Guy¹, D. Ayares³, P. Porrett¹
¹University of Alabama at Birmingham, Birmingham, AL, ²Deakin University, Geelong, Australia, ³Revivicor, Incorporated, Blacksburg, VA, ⁴University of Alabama at Birmingham, Irondale, AL
*Purpose: Proof-of-concept xenotransplant work has been performed in pig to non-human primates (NHP), but it is unclear if outcomes can be recapitulated in humans. While…
2022 American Transplant Congress
Xenogeneic Cross-Circulation Supports Ex Vivo Human Livers for 24 Hours
W. K. Wu¹, R. Ukita², Y. J. Patel², I. A. Ziogas³, M. Cortelli², M. Mentz², J. R. Talackine², S. A. Francois², N. L. Cardwell², J. W. Stokes², S. P. Alexopoulos³, M. Bacchetta²
¹Hepatobiliary Surgery and Liver Transplantation; Thoracic Surgery, Vanderbilt University Medical Center, Nashville, TN, ²Thoracic Surgery, Vanderbilt University Medical Center, Nashville, TN, ³Hepatobiliary Surgery and Liver Transplantation, Vanderbilt University Medical Center, Nashville, TN
*Purpose: Despite increasing use of machine perfusion as an organ preservation and rescue technique in liver transplantation, significant organ shortages and waitlist mortality highlight a…
2021 American Transplant Congress
Combined CD11b/CD40 Blockade is Superior to CD40 Blockade Alone in Prolonging Survival in Pig-to-Nonhuman Primate Renal Xenotransplantation
D. A. Faber¹, B. Lovasik¹, A. Matar¹, C. Breeden¹, S. Kim¹, A. Adams²
¹Surgery, Emory University School of Medicine, Atlanta, GA, ²Surgery, University of Minnesota, Minneapolis, MN
*Purpose: Blockade of the CD40/CD154 pathway is highly effective in preventing rejection in pig-to-nonhuman primate (NHP) xenotransplantation models. Clinical translation of anti-CD154 mAbs, however, has…
2021 American Transplant Congress
Complement Blockade Improves Renal Xenograft Survival in Primates in the Absence of Transgenic Complement Regulatory Proteins
D. A. Faber¹, B. Lovasik¹, A. Matar¹, C. Breeden¹, A. B. Farris², M. Tector³, A. Tector³, A. Adams⁴
¹Surgery, Emory University School of Medicine, Atlanta, GA, ²Pathology, Emory University School of Medicine, Atlanta, GA, ³Surgery, University of Miami, Miami, FL, ⁴Surgery, University of Minnesota, Minneapolis, MN
*Purpose: Complement activation is a major contributor to xenograft rejection. To minimize xenograft injury, complement suppression via insertion of human complement-regulatory transgenes into the donor…
2021 American Transplant Congress
Cold Perfusion for Ischemia Minimization Reduces Cardiac Injury in an Ex Vivo Xenoperfusion Model
M. R. Connolly¹, A. Calhoun¹, F. Pollok¹, L. Burdorf¹, Z. Habibabady¹, M. Ma¹, S. Miura¹, W. Eyestone², C. Phelps², D. Ayares²
¹Massachusetts General Hospital, Boston, MA, ²Revivicor, Blacksburg, VA
*Purpose: Prior studies using Steen’s cold perfusion storage technique for heart ischemia minimization (IM) prevented initial xenograft dysfunction (IXD). Our pilot data evaluates the effect…
2021 American Transplant Congress
Imaging Flow Cytometry Reveals That Platelet-Sized Erythrocyte Fragments are Formed During Pig Organ Perfusion with Human Blood
Z. A. Habibabady¹, F. Ellett², L. Burdorf¹, M. Connolly¹, F. Pollok¹, D. Irimia², R. N. Pierson III¹, A. M. Azimzadeh¹
¹Center for Transplantation Sciences, Massachusetts General Hospital and Harvard School of Medicine, Boston, MA, ²Center for Engineering in Medicine and Surgery, Massachusetts General Hospital and Harvard School of Medicine, Boston, MA
*Purpose: Severe thrombocytopenia frequently occurs after xenotransplantation of porcine cells or organs, and when pig organs are perfused with human blood. We developed a flow…
2021 American Transplant Congress
Initial Experience with Growth Hormone Receptor Knockout in Pig-to-Baboon Kidney Transplantation: Effect on Ureteric Viability and Kidney Growth
C. Hansen-Estruch¹, H. Iwase¹, A. Jagdale¹, T. Yamamoto¹, M. H. Bikhet¹, J. Foote², H. Hara¹, D. Anderson¹, P. Porrett¹, D. Eckhoff¹, D. Ayares³, W. Eyestone³, J. Locke¹, D. K. Cooper¹
¹Xenotransplantation Program, Department of Surgery, University of Alabama at Birmingham, Birmingham, AL, ²Department of Microbiology and Animal Resources Program, University of Alabama at Birmingham, Birmingham, AL, ³Revivicor, Blacksburg, VA
*Purpose: The purpose of this study was to report outcomes of pig-to-baboon renal transplants using a novel growth hormone receptor knockout (GHRKO) organ-source pig created…
2021 American Transplant Congress
Anti-pig IgE and IgA Antibodies in Sera of (i) Naïve Primates and (ii) Non-human Primates Sensitized to Pig Xenografts
H. Hara, Q. Li, H. Iwase, T. Yamamoto, D. Ayares, D. K. Cooper
University of Alabama at Birmingham, Birmingham, AL
*Purpose: Anti-pig IgM and IgG antibodies in primates play an important role in xenograft rejection. The possible roles of anti-pig IgE and IgA have not…