Articles tagged "Xenotransplantation"

2016 American Transplant Congress
Impact of Mixed Xenogeneic Porcine Hematopoietic Chimerism on Human NK Cell Recognition in a Humanized Mouse Model.
H. Li,¹ P. Vishwasrao,^1,2 M. Holzl,¹ S. Chen,¹ G. Choi,^2,3 G. Zhao,¹ M. Sykes.¹
¹Columbia Center for Translational Immunology, Columbia University, New York, NY; ²Department of Hematology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands; ³Department of Hematology, University Medical Center Groningen, Groningen, Netherlands.
Xenotransplantation is a potential solution for the shortage of organs for transplantation. However, potent xenograft rejection responses present a formidable barrier. Mixed xenogeneic hematopoietic chimerism…
2016 American Transplant Congress
Long Term Heterotopic Cardiac Xenograft Survival from Donor Pigs with Six Gene Modifications.
M. Mohiuddin,¹ A. Singh,¹ J. Chan,¹ P. Corcoran,¹ M. Thomas III,² B. Lewis,² D. Ayares,³ K. Horvath.¹
¹CSRP, NHLBI/NIH, Bethesda, MD; ²DVR / RS, NIH, Bethesda, MD; ³Revivicor, Inc, Blacksburgh, VA.
Introduction: We have recently reported pig xenograft survival of more than 2.5 years in a heterotopic cardiac xenograft model. Some of the animals exhibited local…
2016 American Transplant Congress
Human Leukocyte Antigen-E Expression on Porcine GalTKO.hCD46 Cells Improves Ex-Vivo Xenograft Survival and Attenuates Injury.
C. Laird,¹ N. Kubicki,¹ L. Burdorf,¹ T. Zhang,¹ X. Chang,¹ G. Braileanu,¹ C. Phelps,² D. Ayares,² A. Azimzadeh,¹ R. Pierson.¹
¹University of Maryland School of Medicine, Baltimore, MD; ²Revivicor, Inc, Blacksburg, VA.
Purpose:Lung xenografts are subject to injury mechanisms associated with the sequestration of human cells, including natural killer (NK) cells. To control NK cell associated injury,…
2016 American Transplant Congress
Long-Term Islet Xenograft Survival Requires Effective Control of Early Xenogeneic IL-17 Response and Late Xenogeneic IFN-γ Response.
H. Kang,¹ S. Wang,² X. Zhang,³ A. Singh,⁵ L. Zhang,¹ W. Suarez-Pinzon,⁵ S. Miller,⁴ B. Hering,⁵ X. Luo.^1,3,4
¹Medicine, Northwestern University, Chicago, IL; ²Surgery, Tianjin Union Medical Center, Tianjin, China; ³Comprehensive Transplant Center, Northwestern University, Chicago, IL; ⁴Microbiology and Immunology, Northwestern University, Chicago, IL; ⁵Schulze Diabetes Institute, University of Minnesota, Minneapolis, MN.
Introduction: Tolerance induction for xenogeneic islet transplant remains a challenge. We have previously shown that peri-transplant infusion of donor cells treated with 1-ethyl-3-(3'-dimethylaminopropyl)-carbodiimide (ECDI) is…
2015 American Transplant Congress
Orthotopic Transplantation of a Tissue Engineered Skin Graft in Athymic Mice
N. Nayakawde, P. Patil, K. Methe, M. Olausson.
Surgery, Gothenburg University, Gothenburg, Vastra Gotaland, Sweden.
Background: Tissue engineered (TE) skin offers promising alternative treatment in wound healing of acute and chronic skin injuries. Limited autografts from donor skin and risks…
2015 American Transplant Congress
Identifying Barriers Specific to Xenoislets by Direct Comparison to Alloislets in a Dual Transplant Model
K. Samy,¹ B. Martin,² P. Thompson,² A. Farris,² M. Song,² V. Leopardi,¹ B. Collins,¹ A. Kirk.¹
¹Department of Surgery, Duke University Medical Center, Durham, NC; ²Emory Transplant Center, Emory University, Atlanta, GA.
Purpose:The xenotransplantation of neonatal porcine islets (NPIs) may alleviate the shortage of islets currently limiting islet allotransplantation. However, successful implementation requires understanding of the immune…
2015 American Transplant Congress
Detergent-Sonication Method for the Whole Laryngeal Decellularization
N. Nayakawde,¹ K. Methe,¹ M. Berg,² G. Premaratne,¹ H. Ejnell,² M. Olausson.¹
¹Surgery, Gothenburg University, Gothenburg, Vastra Gotaland, Sweden; ²Departments of 1Otolaryngology, Head and Neck Surgery, Gothenburg University, Gothenburg, Vastra Gotaland, Sweden.
Background: Each year, about 136,000 individuals worldwide are diagnosed with larynx carcinoma. Tissue engineered organs shows promising alternative to a conventional transplantation in both preclinical…
2015 American Transplant Congress
Characteristics of IgGs Produced in Neu5Gc and α1-3 Gal Double Knock-Out Pigs
A. Salama,^1,2 S. Conchon,¹ A. Perota,³ B. Martinet,¹ J.-P. Judor,¹ G. Evanno,¹ S. Le-Bas Bernardet,¹ L. Le Berre,¹ J. Hervouet,¹ D. Minault,¹ J.-P. Concordet,⁴ E. Dugast,¹ B. Vanhove,¹ J. Abadie,⁵ N. Gaide,⁵ I. Lagutina,³ R. Duchi,³ G. Lazzari,³ D. Sachs,⁶ O. Gauthier,⁷ S. Brouard,¹ E. Cozzi,⁸ G. Blancho,¹ H. Perreault,⁹ J.-M. Bach,¹⁰ C. Galli,^3,11 J.-P. Soulillou.¹
¹INSERM UMR 1064, ITUN, CHU de Nantes, Nantes University, Nantes, France; ²Société d'Accélération du Transfert de Technologies Ouest Valorisation, Rennes, France; ³Avantea, Laboratory of Reproductive Technologies, Cremona, Italy; ⁴INSERM U565, CNRS UMR7196, MNHN USM503, Paris, France; ⁵AMaROC, ONIRIS, Nantes, France; ⁶Massachusetts General Hospital, Transplantation Biology Research Center, Boston, MA; ⁷Centre de Recherche et d'Investigation Préclinique, ONIRIS, Nantes, France; ⁸Padua General Hospital and Consortium for Research in Organ Transplantation, Padua, Italy; ⁹Chemistry Department, University of Manitoba, Winnipeg, Canada; ¹⁰IECM, EA4644 University/ONIRIS USC1383 INRA, ONIRIS, Nantes, France; ¹¹Dept. of Veterinary Medical Sciences, University of Bologna, Bologna, Italy.
Xenotransplantation offers a large number of potential applications, including solid organs, pancreatic islets, acellular tissues such as heart valves and skin grafts, and new bioreagents…
2015 American Transplant Congress
Human Mesenchymal Stromal Cells Improve Survival and Function of Pancreatic Islets by Cell-to-Cell Contact
E. Montanari,¹ R. Mahou,^1,2 S. Passemard,² F. Noverraz,² P. Morel,¹ R. Meier,¹ D. Bosco,¹ J. Seebach,³ C. Wandrey,² S. Gerber,² C. Gonelle-Gispert,¹ L. Buhler.¹
¹Department of Surgery, Cell Isolation and Transplantation Center, Geneva University Hospitals and Medical Faculty, Geneva, Switzerland; ²Institut d'Ingénierie Biologique et Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland; ³Division of Immunology and Allergy, Geneva University Hospitals and Medical Faculty, Geneva, Switzerland.
Background and Aim:The aim of this study was to evaluate the survival and function of human pancreatic islets co-encapsulated with human Mesenchymal Stromal Cells (MSC)…
2015 American Transplant Congress
Infusion of Human Factor 7a Restores Circulating Platelets and Prevents TMA in Pig-to-Baboon Liver Xenotransplantation
J. Shah, N. Navarro-Alvarez, H. Yeh, N. Elias, J. Ligocka, J. Markmann, M. Hertl, D. Sachs, P. Vagefi.
Transplantation Biology Research Center, Massachusetts General Hospital/Harvard Medical School, Boston, MA.
Background We sought to determine the effects of exogenous administration of human coagulation factors in a pig-to-baboon model of liver xenotransplantation (LXT).Methods LXT was performed…