Overview
During my career as an academic surgeon, I have had the privilege of leading and/or participating in a diverse portfolio of hypothesis-driven research projects. These projects have centered on the immunology of surgery and transplantation, including both cellular and antibody-mediated immune responses. During my training I studied the response of hyper-sensitized recipients to allogeneic liver transplantation, and am currently studying means of reducing immunologic memory that might allow more successful transplantation in sensitized recipients. This immune response involves pathways of coagulation, antibody-mediated rejection, and cellular rejection and current work in my lab involves these three pathways. The other major focuses of my work have been co-stimulation blockade and immune cell depletion as approaches to immunologic unresponsiveness or tolerance. My research group has been involved in translational and clinical research to develop these mechanistic tools for the benefit of human organ transplant recipients.
Recent Publications
Knechtle SJ, Shaw JM, Hering BJ, Kraemer K, Madsen JC. Translational impact of NIH-funded nonhuman primate research in transplantation. Sci Transl Med. 2019 Jul 10;11(500). pii: eaau0143. Reprint | Full Text
Recent Publications
Knechtle SJ, Shaw JM, Hering BJ, Kraemer K, Madsen JC. Translational impact of NIH-funded nonhuman primate research in transplantation. Sci Transl Med. 2019 Jul 10;11(500). pii: eaau0143. Reprint | Full Text
Current Appointments & Affiliations
William R. Kenan, Jr. Distinguished Professor of Surgery
·
2018 - Present
Surgery, Abdominal Transplant Surgery,
Surgery
Professor of Surgery
·
2015 - Present
Surgery, Abdominal Transplant Surgery,
Surgery
Adjunct Professor in the Department of Medicine
·
2019 - Present
Medicine, Nephrology,
Medicine
Recent Publications
The Role of Sleep Apnea in Postoperative Neurocognitive Disorders Among Older Noncardiac Surgery Patients: A Prospective Cohort Study.
Journal Article Anesth Analg · January 1, 2025 BACKGROUND: Obstructive sleep apnea is associated with increased dementia risk, yet its role in postoperative neurocognitive disorders is unclear. Here, we studied whether the severity of untreated obstructive sleep apnea is associated with the severity of ... Full text Link to item CiteCD154 blockade effectively controls antibody-mediated rejection in highly sensitized nonhuman primate kidney transplant recipients.
Journal Article Sci Transl Med · January 2025 Current desensitization and maintenance immunosuppression regimens for kidney transplantation in sensitized individuals show limited ability to control the posttransplant humoral response, resulting in high rates of antibody-mediated rejection (ABMR) and g ... Full text Link to item CiteAn IgM Cleaving Enzyme for Clearance of Anti-Pig Xenoreactive Antibodies in a Nonhuman Primate Model.
Journal Article Xenotransplantation · 2025 BACKGROUND: The removal of preformed antibodies with cleaving enzyme like IdeS (Imlifidase) has demonstrated therapeutic potential in organ transplantation for sensitized recipients. However, preformed xenoreactive antibodies (XAbs) against porcine glycans ... Full text Link to item CiteRecent Grants
A Phase 3, Double-blind, Randomized, Placebo-controlled, Multicenter Study to Evaluate the Efficacy and Safety of Ravulizumab Administered Intravenously in Adult Participants at High Risk of Delayed Graft Function after Kidney Transplantation
Clinical TrialPrincipal Investigator · Awarded by Alexion Pharmaceuticals, Inc. · 2025 - 2030A Phase 2, Double-Blind, Randomized, Placebo-Controlled, Multicenter Study to Evaluate Efficacy and Safety of ALXN2030 in Adult Patients with Antibody-Mediated Rejection after Kidney Transplantation
Clinical TrialPrincipal Investigator · Awarded by Alexion Pharmaceuticals, Inc. · 2025 - 2030Stimulating Access to Research in Residency (StARR) - NIAID
Inst. Training Prgm or CMEPreceptor · Awarded by National Institutes of Health · 2018 - 2029View All Grants
Education, Training & Certifications
Cornell University, Weill Medical College ·
1982
M.D.