Articles tagged "Preclinical trails"

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
Natural Sensitization by Pregnancy, Testing Desensitization Strategies in Female NHPs Across Repeat Mismatches
M. Manook, J. Yoon, Z. Fitch, R. Schmitz, A. M. Jackson, J. Kwun, S. Knechtle
Duke Transplant Center, Duke University Medical Center, Durham, NC
*Purpose: Women are disproportionately represented in the highly sensitized patient cohort, and HLA-incompatible transplantation is undertaken predominantly in females. However, nonhuman primate (NHP) models to…
2021 American Transplant Congress
Measuring the Impact of Targeting FcRn-Mediated IgG Recycling on Donor-Specific Alloantibodies in a Sensitized NHP Model
M. Manook¹, W. Flores², R. Schmitz¹, Z. Fitch¹, J. Yoon¹, Y. Bae¹, B. I. Shaw¹, M. Harnois³, S. Permar³, A. Kirk¹, D. Magnani², J. Kwun¹, S. Knechtle¹
¹Duke Transplant Center, Duke University Medical Center, Durham, NC, ²Massbiologics, University of Massachusetts Medical School, Boston, MA, ³Human Vaccine Institute, Duke University Medical Center, Durham, NC
*Purpose: In transplantation, plasmapheresis and IVIg provide the mainstay of treatment directed at reducing or removing circulating donor specific antibody (DSA), yet both have limitations.…
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
Clazakizumab (clz, Anti-il-6 Antibody) Treatment Affects Il-6/il-6r Signaling by Increasing Soluble Gp130 (sgp130) in Hla-sensitized Kidney Transplant Patients (hs Ktx Pts) Treated for Chronic Antibody-mediated Rejection (cabmr)
B. Shin, S. Ge, A. Jimenez, N. Ammerman, A. Vo, R. Zhang, S. C. Jordan, M. Toyoda
Cedars-Sinai Medical Center, Cerritos, CA
*Purpose: IL-6 is a pro-inflammatory cytokine responsible for chronic vascular inflammation and a promising target for cABMR modulation. IL-6/sIL-6R complex initiates more pathogenic trans-signaling pathways…
2021 American Transplant Congress
Sampling Renal Biopsies in Pre-Clinical Research for Comprehensive Assessment
C. M. Edwards¹, C. Albert², D. Stern¹, J. Langford¹, W. Day², J. R. DiRito¹, W. M. Saltzman², M. Kashgarian³, J. S. Pober⁴, G. T. Tietjen¹
¹Surgery, Yale School of Medicine, New Haven, CT, ²Biomedical Engineering, Yale School of Medicine, New Haven, CT, ³Pathology, Yale School of Medicine, New Haven, CT, ⁴Immunobiology, Yale School of Medicine, New Haven, CT
*Purpose: Previous literature has demonstrated that single biopsies are not representative of a whole kidney in clinical assessments. In this study we aimed to design…
2020 American Transplant Congress
Neoadjuvant Gem/Cis Followed by Transarterial Radioembolization for Locally Advanced iCCA with Intent for Curative Resection
T. Baker, J. Fung, D. Disabato, A. Pillai, O. Ahmed, A. Liao
Transplantation Institute, The University of Chicago, Chicago, IL
*Purpose: Locally advanced intrahepatic cholangiocarcinoma (LAiCCA) has a traditionally poor prognosis with few curative surgical options and a high incidence of postop recurrence. The intent…
2020 American Transplant Congress
Life-Supporting Pig Thymus Plus Kidney Transplantation Leads to Generation of New Baboon T-Cells and Swine-Specific Hyporesponsiveness
Y. Okumura¹, K. Takeuchi¹, Y. Ariyoshi¹, T. Pomposelli¹, L. Boyd¹, D. Alper¹, K. Miyake¹, K. Okubo¹, S. Arn¹, D. Ayares², M. Lorber³, M. Sykes¹, D. Sachs¹, K. Yamada¹
¹Columbia Center for Translational Immunology, Columbia University, New York, NY, ²Revivicor Inc., Blacksburg, VA, ³Lung BioTechnology PBC, Silver Spring, MD
*Purpose: We have achieved greater than 6-month survivals in baboons that received vascularized thymus plus kidney xenotransplants (VT+K XTx). We assessed the thymic function and…
2020 American Transplant Congress
Prolonged Multitransgenic Pig Lung Survival with Attenuated Pulmonary Vascular Resistance Rise During Human Blood Perfusion
M. R. Connolly¹, L. Burdorf¹, S. Pratts¹, B. Cerel¹, Z. Abady¹, W. Quin², Y. Kan², J. Layer², M. Youd², W. Westlin², L. Yang², A. Azimzadeh¹, R. N. Pierson III¹
¹Center for Transplantation Sciences, Massachusetts General Hospital, Boston, MA, ²eGenesis, Cambridge, MA
*Purpose: Physiologic behavior of porcine lungs with multiple xeno-targeted genetic modifications, Pig 2.0, have not previously been evaluated.*Methods: Eight pairs of lungs from Pig 2.0…
2020 American Transplant Congress
A Nonhuman Primate Model of Intestinal Transplantation – Technical Aspects and Early Outcomes
R. Schmitz¹, J. Yoon¹, M. Song¹, E. Jelly², A. P. Wax², S. J. Knechtle¹, D. L. Sudan¹, J. Kwun¹
¹Department of Surgery, Duke University Medical Center, Durham, NC, ²Department of Biomedical Engineering, Duke University, Durham, NC
*Purpose: Intestinal transplantation (IT) is the treatment of choice for patients with irreversible intestinal failure that experience complications from total parenteral nutrition. Long-term outcomes after…