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Li Y, Yuan W, Zhong M, Qi J, Zheng X, Xie X, Li T, Zhang H, Jiang X, Peng L, Dai H. A murine groin site cardiac transplantation model-applicable tool for studying roles of peripheral lymph nodes in transplantation. Xenotransplantation 2024; 31:e12817. [PMID: 37548057 DOI: 10.1111/xen.12817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/22/2023] [Accepted: 07/26/2023] [Indexed: 08/08/2023]
Abstract
The murine heterotopic cardiac transplantation model has been widely used to study antigen-specific immune responses or new immunosuppressive agents, which have a strong correlation with peripheral lymph nodes. Thus, a new organ transplantation model that is applicable to related studies is needed. Here, we describe a groin-site murine heart transplantation model using a cuff technique, in which the donor aorta and pulmonary artery are anastomosed to the truncated femoral vessels of the recipient. The mean survival time (MST) of the grafts in BALB/c-to-C57BL/6 allo-transplant group was 7.2 ± 0.3 days, and 1.9 ± 0.2 days in BALB/c-to-Sprague-Dawley (SD) rat xeno-transplant group. H&E results show that donor hearts from both groups demonstrate typical pathological features at the endpoint. Evans Blue tracing revealed that the popliteal lymph nodes of the grafted side hindlimb are larger than those of the contralateral side. Moreover, IHC staining for CD3, CD20 shows that the germinal center and cortex region of the grafted side of popliteal lymph nodes is apparently increased than that of the contralateral side. To sum up, this model may serve as an ideal model to study the role of peripheral lymph nodes in organ transplant rejection. In addition, extra-peritoneal grafting makes a step forward in animal welfare under the 3Rs' principle (Replacement, Reduction, Refinement).
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Affiliation(s)
- Yaguang Li
- Department of Kidney Transplantation, The Second Xiangya Hospital, of Central South University, Changsha, China
- Clinical Research Center for Organ Transplantation in Hunan Province, Central South University, Changsha, China
| | - Wenjia Yuan
- Department of Kidney Transplantation, The Second Xiangya Hospital, of Central South University, Changsha, China
- Clinical Research Center for Organ Transplantation in Hunan Province, Central South University, Changsha, China
| | - Mingda Zhong
- Department of Kidney Transplantation, The Second Xiangya Hospital, of Central South University, Changsha, China
| | - Julia Qi
- Peking University Health Science Center, Beijing, China
| | - Xinguo Zheng
- Department of Kidney Transplantation, The Second Xiangya Hospital, of Central South University, Changsha, China
- Clinical Research Center for Organ Transplantation in Hunan Province, Central South University, Changsha, China
| | - Xubiao Xie
- Department of Kidney Transplantation, The Second Xiangya Hospital, of Central South University, Changsha, China
- Clinical Research Center for Organ Transplantation in Hunan Province, Central South University, Changsha, China
| | - Tengfang Li
- Department of Kidney Transplantation, The Second Xiangya Hospital, of Central South University, Changsha, China
- Clinical Research Center for Organ Transplantation in Hunan Province, Central South University, Changsha, China
| | - Hedong Zhang
- Department of Kidney Transplantation, The Second Xiangya Hospital, of Central South University, Changsha, China
- Clinical Research Center for Organ Transplantation in Hunan Province, Central South University, Changsha, China
| | - Xin Jiang
- Department of Organ Transplantation, The Fifth Clinical Medical College of Henan University of Chinese Medicine (Zhengzhou People's Hospital), Zhengzhou, China
| | - Longkai Peng
- Department of Kidney Transplantation, The Second Xiangya Hospital, of Central South University, Changsha, China
- Clinical Research Center for Organ Transplantation in Hunan Province, Central South University, Changsha, China
| | - Helong Dai
- Department of Kidney Transplantation, The Second Xiangya Hospital, of Central South University, Changsha, China
- Clinical Research Center for Organ Transplantation in Hunan Province, Central South University, Changsha, China
- Clinical Immunology Center, Central South University, Changsha, China
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