STEFAN G. TULLIUS, MD, PHD
Principal Investigator
Joseph E. Murray, MD Distinguished Chair in Transplantation Surgery
Chief, Division of Transplant Surgery, Director, Transplant Surgery Research Laboratory, Brigham and Women’s Hospital
Professor of Surgery, Harvard Medical School
Vice-President, The Transplantation Society (2022-2024)
Incoming Editor-in-Chief, Transplantation Journals
Hao Zhou, MD, PhD
Hao joined in 2020 as a research investigator, lab manager, and instructor in surgery. Prior to joining Tullius Lab, he was a faculty member at the Cleveland Clinic Lerner Research Institute.
Email: hzhou21@bwh.harvard.edu
Friederike Martin, MD
Friederike joined the Tullius Lab in January 2023 for her postdoctoral research fellowship. Her work delves into the impact of recipient and donor age and sex on transplantation outcomes, particularly focusing on humoral immune response post-transplantation. Friederike received her medical degree from the Technical University of Munich in 2018 and completed part of her surgical residency at Charité – Universitätsmedizin, Berlin, between January 2019 and December 2022. Recognized for her contributions, she was awarded the Sanofi Women in Transplantation Research Fellowship Grant in 2021 and currently holds the Walter Benjamin Scholarship from the German Research Foundation. Since 2023, she has been actively engaged as a trainee of the Pillar 1 committee of Women in Transplantation.
Email: fmartin2@bwh.harvard.edu
MUKHAMMAD KAYUMOV, MD, PHD
Mukhammad joined the Tullius lab in May 2024 as a postdoctoral research fellow. He received his medical degree from Andijan State Medical Institute in Uzbekistan and completed his PhD at Chonnam National University in South Korea. His recent research experience includes working on small animal ECMO models to study immune responses and establishing a combined model of ex situ heart perfusion and heterotopic heart transplantation on rats.
Email: mkayumov@bwh.harvard.edu.
Yao Xiao, MD
Yao is a lab enthusiast keen on scalpel-driving, code-cracking, photo-snapping, and home-decorating. When I’m not busy in the lab unraveling the mysteries of sex hormone, aging and transplant immunology, I’m either exploring new places in the real world or uncovering bugs in The Legend of Zelda: Breath of the Wild. It’s my quirky way of mixing adventure with a love for the unexpected, proving life is full of hidden quests. Join me in the lab or in Hyrule!
Email: yxiao18@bwh.harvard.edu
Tatsuo Fukushima, MD
Tatsuo Fukushima joined the Tullius Lab in April 2025 as a research fellow. He is a surgeon from the Department of Urology at Osaka Medical and Pharmaceutical University in Japan.
Email: tfukushima1@bwh.harvard.edu
zhuolun song, MD, PHD
Zhuolun joined in 2024 as a research investigator, and instructor. Prior to joining Tullius Lab, he was a postdoctoral fellow at the University of Illinois at Chicago.
Email: zsong4@bwh.harvard.edu
sarah tsou, MD
Sarah joined the Tullius Lab in July 2024 as a research fellow. She received her undergraduate degree at Harvard College, and her medical degree at University of California, San Francisco. She is currently a general surgery resident at the Brigham and Women’s Hospital, with a clinical interest in transplant surgery.
Email: stsou@bwh.harvard.edu
Constantin paul michael Kupsch
Constantin joined the Tullius Lab in 2024 as a graduate student researcher. He is a medical student at the Department of General, Visceral, and Transplant Surgery at Albert-Ludwigs University Freiburg in Germany
Email: ckupsch@bwh.harvard.edu
ROSALIE Wolff Von GUDENBERG
Rosalie joined the Tullius Lab in November 2024 as a Research fellow. She is a medical student at the Department of Cardiothoracic, Transplantation and Vascular Surgery at Hannover Medical School in Germany.
Email: rwolffvongudenberg@bwh.harvard.edu
| 2005-2007: Christian Denecke, MD
|
Lab position: Post Doctoral Research Fellow
Associate Professor of Surgery, Vice-Chair of Surgery, Department of General-, Visceral-, and Transplant Surgery, Charité, Berlin, Germany |
| 2006-2008: Paulo Ney Martins, MD, PhD | Lab position: Post Doctoral Research Fellow
Transplant Surgeon/Associate Professor of Surgery, University of Massachusetts Medical Center, MA, USA |
| 2007-2009: Daman Bedi, MD | Lab position: Post Doctoral Research Fellow
Section Head, Transplantation, Associate Professor of Surgery, Oakland University William Beaumont School of Medicine |
| 2007-2008: Irene Kim, MD | Lab position: Post Doctoral Research Fellow
Director, Comprehensive Transplant Center, Professor of Surgery, Cedars-Sinai Hospital, California |
| 2007-2011: Xupeng Ge, MD PhD | Lab position: Post Doctoral Research Fellow
Senior Anesthesiologist, Scripps Memorial Hospital-La Jolla, California. USA |
| 2008-2010: Xiadong Yuan, MD | Lab position: Post Doctoral Research Fellow
Senior Urologist, Chief Renal Transplantation, Renji Hospital, Shanghai, China |
| 2009-2011: Bernhard Floerchinger, MD | Lab position: Post Doctoral Research Fellow
Vice-Chair of Cardiac Surgery, Professor of Surgery, University Hospital Regensburg, Germany |
| 2009-2011: Marc Oliver Timsit, MD | Lab position: Post Doctoral Research Fellow
Professor of Urology, Hospital Georges Pompidou, Hospital Necker, Paris, France |
| 2011-2012: Rupert Oberhuber, MD | Lab position: Post Doctoral Research Fellow
Associate Professor, Senior Attending, Transplant and Hepatobiliary Surgery, Department of Surgery, University Hospital, Innsbruck University, Austria |
| 2011-2011: Karin Hock, PhD | Lab position: Graduate Student
Associate Professor, Country Medical Manager Oncology, Daiichi Sankyo Europe GmbH |
| 2011-2012 & 2016-2018: Timm Heinbokel
|
Lab position: Graduate Student, Post-doctoral Fellow
Resident in Pathology, Nephrology, Charite University Hospital, Berlin, Germany Currently: PhD Student in History and Philosophy of Science at the University of Notre Dame, IN, USA |
| 2013- 2014: Hector Rodriguez, MD | Lab position: Post Doctoral Research Fellow
Associate Professor, Cardiovascular Surgeon / Head of Cardiovascular Research, University Hospital Zurich, Researcher Collaborator, Herat Center, Berlin, Germany |
| 2013-2014: Floris Vosquil | Lab position: Graduate Student
MD, resident in Oral-Maxillofacial Surgery, Medical Student, University of Groningen, NL |
| 2014-2014: Matthew Young | Lab position: Summer Student
Matthew Young, MD, JD, MBA, CMQ, FCLM, Esq, Attorney at Law, Ross Feller Casey, LLP, Philadelphia, PA, USA |
| 2014-2015: Felix Krenzien, MD | Lab position: Post Doctoral Research Fellow
Associate Professor; Vice-Chair of Surgery, Department of General,- Visceral- and Transplantation Surgery, Charité-Berlin, Germany |
| 2014-2015: Leonie Exterkate | Lab position: Graduate Student
Resident, radiation Oncology, Antoni Van Leeuwenhoek Foundation, Amsterdam, NLMedical Student, University of Groningen, NL |
| 2013-2016: Hirofumi Uehara, MD
|
Lab position: Post Doctoral Research Fellow
Associate Professor, Department of Urology, Osaka Medical and Pharmaceutical University Hospital, Osaka, Japan |
| 2013-2016: Markus Quante, MD | Lab position: Post Doctoral Research Fellow
Associate Professor of Surgery, Vice-Chair, Department of Surgery, Hannover Medical School, Germany |
| 2015-2016: Midas Seyda | Lab position: Graduate Student
Post-doctoral Fellow, Dana Farber Cancer Institute, Boston, MA, USA |
| 2016-2018: Koichiro Minami, MD
|
Lab position: Post Doctoral Research Fellow
General Manager, Department of Urology, Moriguchi-Keijinkai Hospital, Osaka, Japan |
| 2017-2019: Yeqi Nian, MD | Lab position: Post Doctoral Research Fellow
Associate Professor of Urology, Department of Kidney Transplantation, Tianjin First Central Hospital, Nankai University, Tianjin, China |
| 2018-2020: Jasper Iske, MD | Lab position: Graduate Student
Resident, Clinician-Scientist, German Heart Center, Berlin, Germany |
| 2018-2020: Ryoichi Maenosono, MD
|
Lab position: Post Doctoral Research Fellow
Research Fellow, National Cancer Center Research Institute, Tokyo, Japan |
| 2011-2020: Abdala Elkhal, PhD | Lab position: Instructor, Laboratory Manager
Assistant Professor, HMRI – Huntington Medical Research Institute, CA, USA |
| 2021-2022 Andreas Schroeter | Lab position: Medical Student
Hannover Medical School, Hannover, Germany |
| 2021-2022 Maximilian J. Roesel | Lab Position: Medical Student
Medical School – Charité University Medicine Berlin, Berlin, Germany |
| 2020-2022 Tomohisa Matsunaga, MD
|
Lab position: Post Doctoral Research Fellow
Deputy Manager, Department of Urology, Shiroyama Hospital, Osaka, Japan |
| 2024 Elizabeth Zicari
|
Lab position: Graduate Student
University of Paris, France |
| 2023-2024 Yuko Sato, PhD
|
Lab position: Research Investigator, Instructor
|
| 2023-2024 Merih Gizlenci
|
Lab position: Medical Student
University Hospital of Cologne, Cologne, Germany |
| 2023-2025 Keita Nakamori, MD
|
Lab position: Post Doctoral Research Fellow
Department of Urology, at Osaka Medical and Pharmaceutical University, Osaka, Japan |