Articles tagged "Islets"

2016 American Transplant Congress
Utilization of Plasmapheresis and High Dose of Immunoglobulins in the Treatment of the High Level of De Novo Donor Specific Antibodies for the Successful Islet Allotransplantation.
J. Solomina,¹ Z. Tekin,¹ S. Matosz,¹ K. Golab,¹ C. Thomas,² J. Golebiewska,³ S. Ramachandran,¹ L. Schenck,¹ W. Chon,¹ M. Tibudan,¹ N. Marek-Trzonkowska,⁴ J. Millis,¹ P. Witkowski.¹
¹Surgery, University of Chicago, Chicago, IL; ²Medicine, University of Chicago, Chicago, IL; ³Internal Medicine, Medical University of Gdansk, Gdansk, Poland; ⁴Family Medicine, Medical University of Gdansk, Gdansk, Poland.
Background.Development of donor specific antibodies (DSA) after islet transplantation has been a poor prognostic factor for graft survival, while no intervention is implemented. Here, we…
2016 American Transplant Congress
Citrate-Based Thermoresponsive Hydrogel as a Versatile Platform for Extrahepatic Islet Transplantation.
Y. Zhu,¹ X. Zhang,² A. Guillermo,¹ X. Luo.²
¹McCormick School of Engineering, Northwestern University, Chicago, IL; ²Comprehensive Transplant Center, Northwestern University, Chicago, IL.
Introduction: Islets transplantation in the liver often results in limited islets survival presumably due to abnormal blood flow dynamics and acute inflammatory response. The objective…
2016 American Transplant Congress
Low Risk of Cytomegalovirus (CMV) Transmission in Clinical Islet Transplantation.
D. Kabbani,¹ K. Cheung,² P. Senior,² C. Cervera,¹ K. Doucette,¹ J. Preiksaitis.¹
¹Infectious Diseases, University of Alberta, Edmonton, AB, Canada; ²Clinical Islet Transplant Program, University of Alberta, Edmonton, AB, Canada.
Background:In solid organ transplantation (SOT), CMV is commonly transmitted from seropositive organ donors (D+) to seronegative recipients (R-), despite the use of antiviral prophylaxis. The…
2016 American Transplant Congress
A Novel, Non-Viral mRNA Delivery System for Targeted Protein Translation in Human Islets.
J. Oberholzer,^1,2 D. Gutierrez,^1,2 E. Marchese,¹ M. Nourmohammadzadeh,^1,2 Y. Wang.^1,2
¹Department of Surgery, University of Illinois at Chicago, Chicago, IL; ²Department of Bioengineering, University of Illinois at Chicago, Chicago, IL.
Background: We propose using an innovative technology that utilizes gold nanoparticles (AuNPs) as a non-viral method of delivery. Our laboratory was one of the first…
2016 American Transplant Congress
MicroRNA-375 and -200c Are a Set of Novel Biomarkers That Can Predict Islet Autotransplantation Outcome.
G. Yoshimatsu,¹ M. Kanak,² M. Takita,¹ S. Prathab Balaji,¹ C. Chang,¹ M. Lawrence,¹ M. Levy,² N. Onaca,³ P. Kim,³ B. Naziruddin.³
¹Islet Cell Laboratory, Baylor Research Institute, Dallas, TX; ²Transplant Division, Department of Surgery, VCU Medical Center, Richmond, VA; ³Baylor Simmons Transplant Institute, Dallas, TX.
Introduction: Total pancreatectomy with islet autotransplantation (TPIAT) is an effective treatment for refractive chronic pancreatitis to relieve pain and retain endocrine function. Patient selection is…
2016 American Transplant Congress
A Non-Hematopoietic Erythropoietin Analogue, ARA 290, Prolonged Allogeneic Pancreatic Islet Graft Survival in a Mouse Model.
M. Watanabe,¹ M. Yao,¹ D. Andersson,¹ M. Brines,² T. Lundgren,¹ M. Kumagai-Braesch.¹
¹Division of Transplantation Surgery, CLINTEC, Karolinska Institutet, Stockholm, Sweden; ²Araim Pharmaceuticals, Tarrytown, NY.
Purpose. Erythropoietin exerts anti-inflammatory, anti-apoptotic and cyto-protective effects in addition to its hematopoietic property. We have recently shown that ARA 290, a non-hematopoietic erythropoietin analogue,…
2016 American Transplant Congress
Validation of SUITO Index and C-Peptide/Glucose Creatinine Ratio as Convenient Tools for the Evaluation of the Short and Long-Term Islet Allograft Function.
J. Gołębiewska,¹ J. Solomina,² S. Matosz,² C. Thomas,³ L. Schenck,² K. Golab,² W. Chon,³ S. Ramachandran,² M. Tibudan,² A. Dębska-ŚLizień,¹ B. Rutkowski,¹ P. Witkowski.²
¹Department of Nephrology, Transplantology and Internal Medicine, Medical University of Gdańsk, Gdańsk, Poland; ²Department of Surgery, University of Chicago, Chicago, IL; ³Department of Medicine, University of Chicago, Chicago, IL.
Background: Mixed Meal Tolerance Test (MMTT) together with the beta-score are standard tools to evaluate beta-cell function after islet transplantation but utilization of the test…
2016 American Transplant Congress
Human Multipotent Mesenchymal Stromal Cells Improve Survival and Function of Pancreatic Islets by Cell-to-Cell Contact.
E. Montanari,¹ R. Meier,² D. Bosco,¹ R. Mahou,³ P. Morel,² J. Seebach,⁴ C. Wandrey,³ C. Gonelle-Gispert,¹ L. Bühler.²
¹University of Geneva, Geneva, Switzerland; ²Division of Digestive and Transplantation Surgery, University Hospitals of Geneva, Geneva, Switzerland; ³Institut d'Ingénierie Biologique et Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland; ⁴Division of Immunology and Allergy, University Hospitals of Geneva, Geneva, Switzerland.
Background: MSC exhibit immunomodulatory and anti-inflammatory properties. Notably, MSC were shown to preserve human islet function and to prevent cytokine-induced apoptosis. Aim: To evaluate the…
2015 American Transplant Congress
Persistent Expansion of DX5- Memory NK Cells in the Liver After Intraportal Islet Transplantation
Y. Saeki, K. Ishiyama, N. Ishida, Y. Tanaka, H. Ohdan.
Gastroenterological and Transplant Surgery, Hiroshima University, Hiroshima, Japan.
Introduction: We have previously demonstrated that liver NK cells play a pivotal role in islet graft loss during the early phase after intraportal islet transplantation…
2015 American Transplant Congress
Mesenchymal Stem Cells Suppress Cytotoxicity of Activated Natural Killer Cells in Liver Via the TRAIL-TRAIL Receptor Pathway in Islet Transplantation
N. Ishida, K. Ishiyama, F. Hirata, Y. Saeki, Y. Tanaka, H. Ohdan.
Department of Gastroenterological and Transplant Surgery, Hiroshima University, Hiroshima, Japan.
Introduction: Innate immune reactions against islet grafts are considered a major obstacle for intraportal islet transplantation. We have previously reported that liver natural killer (NK)…