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Zhang W, Wang Y, Zhong F, Wang X, Sucher R, Lin CH, Brandacher G, Solari MG, Gorantla VS, Zheng XX. Donor derived hematopoietic stem cell niche transplantation facilitates mixed chimerism mediated donor specific tolerance. Front Immunol 2023; 14:1093302. [PMID: 36875068 PMCID: PMC9978155 DOI: 10.3389/fimmu.2023.1093302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 02/08/2023] [Indexed: 02/18/2023] Open
Abstract
Compelling experimental evidence confirms that the robustness and longevity of mixed chimerism (MC) relies on the persistence and availability of donor-derived hematopoietic stem cell (HSC) niches in recipients. Based on our prior work in rodent vascularized composite allotransplantation (VCA) models, we hypothesize that the vascularized bone components in VCA bearing donor HSC niches, thus may provide a unique biologic opportunity to facilitate stable MC and transplant tolerance. In this study, by utilizing a series of rodent VCA models we demonstrated that donor HSC niches in the vascularized bone facilitate persistent multilineage hematopoietic chimerism in transplant recipients and promote donor-specific tolerance without harsh myeloablation. In addition, the transplanted donor HSC niches in VCA facilitated the donor HSC niches seeding to the recipient bone marrow compartment and contributed to the maintenance and homeostasis of stable MC. Moreover, this study provided evidences that chimeric thymus plays a role in MC-mediated transplant tolerance through a mechanism of thymic central deletion. Mechanistic insights from our study could lead to the use of vascularized donor bone with pre-engrafted HSC niches as a safe, complementary strategy to induce robust and stable MC-mediated tolerance in VCA or solid organ transplantation recipients.
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Affiliation(s)
- Wensheng Zhang
- Department of Plastic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States.,Thomas E. Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Yong Wang
- Department of Plastic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States.,Thomas E. Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Fushun Zhong
- Transplantation Medical Center, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Xinghuan Wang
- Transplantation Medical Center, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Robert Sucher
- Department of Visceral, Transplant, Thoracic and Vascular Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Cheng-Hung Lin
- Center for Vascularized Composite Allotransplantation, Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Tao-Yuan, Taiwan
| | - Gerald Brandacher
- Department of Plastic and Reconstructive Surgery, Vascularized Composite Allotransplantation Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Mario G Solari
- Department of Plastic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States.,Thomas E. Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Vijay S Gorantla
- Departments of Surgery, Ophthalmology and Bioengineering, Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Xin Xiao Zheng
- Department of Plastic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States.,Transplantation Medical Center, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
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Kang L, Markert ML, Turek JW. Induction of donor-specific tolerance to heart transplantation: From concept to clinical translation. J Thorac Cardiovasc Surg 2022; 165:1661-1666. [PMID: 35123789 DOI: 10.1016/j.jtcvs.2021.12.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 12/05/2021] [Accepted: 12/15/2021] [Indexed: 11/30/2022]
Affiliation(s)
- Lillian Kang
- Department of Surgery, Duke University, Durham, NC; Duke Congenital Heart Research & Training Laboratory, Duke University, Durham, NC
| | - M Louise Markert
- Department of Pediatrics, Duke University Medical Center, Durham, NC; Department of Immunology, Duke University Medical Center, Durham, NC
| | - Joseph W Turek
- Department of Surgery, Duke University, Durham, NC; Duke Congenital Heart Research & Training Laboratory, Duke University, Durham, NC; Duke Children's Pediatric & Congenital Heart Center, Duke Children's Hospital, Durham, NC.
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