Articles tagged "Bioengineering"

2022 American Transplant Congress
Immunometabolism of Regulatory T Cells Enhanced by Lipid Nanoparticles
J. S. Rink¹, Y. Sambandam², J. He², J. Mathew³, J. R. Leventhal⁴, C. S. Thaxton⁵
¹Department of Medicine, Division of Hematology/ Oncology, Northwestern University, Chicago, IL, ²Comprehensive Transplant Center, Northwestern University, Chicago, IL, ³Northwestern University, Chicago, IL, ⁴Surgery, Northwestern Medicine, Chicago, IL, ⁵Department of Urology, Northwestern University, Chicago, IL
*Purpose: Human regulatory T cell (Treg) metabolism is highly dependent upon a number of factors, including cholesterol obtained from circulating lipoproteins. We have developed high-density…
2022 American Transplant Congress
Vitrification of Pancreatic Islets and Transplantation
J. S. Rao¹, L. Zhan¹, D. Tobolt¹, M. Q. Slama², N. Sethia¹, Z. Han¹, C. S. Dutcher¹, Q. Peterson², J. C. Bischof¹, E. B. Finger¹
¹University of Minnesota, Minneapolis, MN, ²Mayo Clinic, Rochester, MN
*Purpose: A limitation to potential cure for diabetes through islet transplantation is insufficient islet equivalence (IEQ) from a single donor to achieve insulin independence in…
2022 American Transplant Congress
Tissue Engineering Scaffolds for Minimally Invasive Immunosurveillance of Acute Cellular Graft Rejection
R. R. Urie¹, D. Farris², A. Morris¹, E. Lombard¹, J. Z. Li³, D. Goldstein², L. Shea¹
¹Biomedical Engineering, University of Michigan, Ann Arbor, MI, ²Internal Medicine, University of Michigan, Ann Arbor, MI, ³Human Genetics, University of Michigan, Ann Arbor, MI
*Purpose: As there is no assay to predict the risk of acute cellular allograft rejection (ACAR), clinicians rely on protocol graft biopsy and aggressive, one-size-fits-all…
2022 American Transplant Congress
Voxelated Bioprinting of Mechanically Robust Multiscale Porous Scaffolds for Islet Transplantation
J. Zhu, Y. He, Y. Wang, J. Oberholzer, L. Cai
University of Virginia, Charlottesvle, VA
*Purpose: Classical microencapsulation technologies for islet transplantation faces two major challenges associated with individual microcapsules. First, due to long-term gravity individual microcapsules often aggregate to…
2022 American Transplant Congress
Functional Recellularized Patient Derived Endothelium; A Human Vascular Graft Approach
H. Tejeda Mora¹, J. Willemse², Y. den Hartog¹, I. Schurink², M. M. Verstegen², J. de Jonge², R. C. Minnee², M. W. van den Hoogen², C. C. Baan¹, L. J. van der Laan², M. J. Hoogduijn¹
¹Transplant Institute - Internal Medicine, Erasmus Medical Center, Rotterdam, Netherlands, ²Transplant Institute - Department of Surgery, Erasmus Medical Center, Rotterdam, Netherlands
*Purpose: In transplantation, the endothelial lining is the first barrier between the donor organ and recipient immune system. Damaged endothelium exposes extracellular matrix (ECM) molecules…
2022 American Transplant Congress
Decellularized Human Pancreatic Extracellular Matrix-Based Physiomimetic Microenvironment for Human Islet Culture
A. Asthana¹, D. Chaimov¹, R. Tamburrini², S. J. Walker³, G. Orlando¹
¹Wake Forest Baptist Medical Center, Winston-Salem, NC, ²University of Wisconsin Hospital and Clinics, Madison, WI, ³Wake Forest Institute for Regenerative Medicine, Winston-Salem, NC
*Purpose: Maintenance of human islet viability and function ex vivo can be a significant bottleneck for both regenerative medicine as well as tissue engineering applications.…
2022 American Transplant Congress
Selective Vascular Decellularization and Endothelial Cells Replacement as a Strategy to Reduce Reperfusion Injury in Bioartificial Organs
G. Haeublein¹, G. Lombardi¹, F. Caro¹, R. Carla¹, D. Guerrieri¹, C. Incardona², D. Casadei³, E. Chuluyan¹
¹CEFYBO, Buenos Aires, Argentina, ²GADOR S.A., Buenos Aires, Argentina, ³Fundación Argentina de Trasplante, Tercer Milenio, Buenos Aires, Argentina
*Purpose: The number of kidney transplants performed each year cannot meet the increasing demand of these organs. Several strategies aim to increasing the offer of…
2022 American Transplant Congress
Bionic Pancreas – 3D Bioprinting of a Bionic Organ with a Vascular System – Results of Transplantation in Large Animals
M. Wszola¹, M. Klak², A. Berman³, M. Kolodziejska¹, T. Bryniarski¹, G. Tymicki¹, T. Dobrzanski¹, D. Szkopek⁴, K. Roszkowicz-Ostrowska⁵, J. Wolinski⁵, A. Dobrzyn⁶, A. Kaminski⁷
¹Foundation of Research and Science Development, Warsaw, Poland, ²Foundation for Research and Science Development, Warsaw, Poland, ³Polbionica Ltd., Warsaw, Poland, ⁴Institute of Animal Physiology and Nutrition Jan Kielanowski of the Polish Academy of Sciences,, Jabłonna, Poland, ⁵Institute of Animal Physiology and Nutrition Jan Kielanowski of the Polish Academy of Sciences, Jablonna, Poland, ⁶Laboratory of Cell Signaling and Metabolic Disorders, Nencki Institute of Experimental Biology of Polish Academy of Sciences, Warsaw, Poland, ⁷Department of Transplantology and Central Tissue Bank, Medical University of Warsaw, Warsaw, Poland
*Purpose: There is lack organs for transplantation. The transplantation of the pancreas is recommended in diabetes with complications. The combination of cell biology and 3D-bioprinting…
2022 American Transplant Congress
Bionic Pancreas – The First Results of Functionality of 3D-Bioprinted Bionic Tissue Model Transplantation with Pancreatic Islets
M. Klak¹, M. Wszola¹, A. Berman¹, A. Filip¹, A. Kosowska², J. Olkowska-Truchanowicz², G. Tymicki¹, M. Rachalewski¹, T. Bryniarski¹, M. Kolodziejska¹, T. Dobrzanski³, D. Ujazdowska¹, J. Wejman⁴, I. Uhrynowska-Tyszkiewicz², A. Kaminski²
¹Foundation of Research and Science Development, Warsaw, Poland, ²Medical University of Warsaw, Warsaw, Poland, ³Polbionica Ltd., Warsaw, Poland, ⁴Center for Pathomorphological Diagnostics Ltd, Warsaw, Poland
*Purpose: Tissue engineering is currently on advanced stage of development which gives a possibilities for novel strategy of personal treatment of type 1 diabetes. AIM:…
2022 American Transplant Congress
A Model for Medical Device Innovation in Transplantation: Using the Biodesign Process to Address the Impact of Warm Ischemic Injury
K. Hansen¹, J. Wall²
¹University of California San Francisco, San Francisco, CA, ²Stanford University, Palo Alto, CA
*Purpose: The impact of warming during second warm-ischemia (anastomosis) of kidney transplantation has been increasingly recognized in the literature. The outsized effect on delayed graft…

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