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Lee HS, Lee JG, Yeom HJ, Chung YS, Kang B, Hurh S, Cho B, Park H, Hwang JI, Park JB, Ahn C, Kim SJ, Yang J. The Introduction of Human Heme Oxygenase-1 and Soluble Tumor Necrosis Factor-α Receptor Type I With Human IgG1 Fc in Porcine Islets Prolongs Islet Xenograft Survival in Humanized Mice. Am J Transplant 2016; 16:44-57. [PMID: 26430779 DOI: 10.1111/ajt.13467] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 07/05/2015] [Accepted: 07/22/2015] [Indexed: 02/06/2023]
Abstract
Apoptosis during engraftment and inflammation induce poor islet xenograft survival. We aimed to determine whether overexpression of human heme oxygenase-1 (HO-1) or soluble tumor necrosis factor-α receptor type I with human IgG1 Fc (sTNF-αR-Fc) in porcine islets could improve islet xenograft survival. Adult porcine islets were transduced with adenovirus containing human HO-1, sTNF-αR-Fc, sTNF-αR-Fc/HO-1 or green fluorescent protein (control). Humanized mice were generated by injecting human cord blood-derived CD34(+) stem cells into NOD-scid-IL-2Rγ(null) mice. Both HO-1 and sTNF-αR-Fc reduced islet apoptosis under in vitro hypoxia or cytokine stimuli and suppressed RANTES induction without compromising insulin secretion. Introduction of either gene into islets prolonged islet xenograft survival in pig-to-humanized mice transplantation. The sTNF-αR-Fc/HO-1 group showed the best glucose tolerance. Target genes were successfully expressed in islet xenografts. Perigraft infiltration of macrophages and T cells was suppressed with decreased expression of RANTES, tumor necrosis factor-α and IL-6 in treatment groups; however, frequency of pig-specific interferon-γ-producing T cells was not decreased, and humoral response was not significant in any group. Early apoptosis of islet cells was suppressed in the treatment groups. In conclusion, overexpression of HO-1 or sTNF-αR-Fc in porcine islets improved islet xenograft survival by suppressing both apoptosis and inflammation. HO-1 or sTNF-αR-Fc transgenic pigs have potential for islet xenotransplantation.
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Affiliation(s)
- H-S Lee
- Samsung Biomedical Research Institute, Samsung Medical Center, Seoul, Republic of Korea
| | - J-G Lee
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - H J Yeom
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Y S Chung
- Samsung Biomedical Research Institute, Samsung Medical Center, Seoul, Republic of Korea
| | - B Kang
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - S Hurh
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - B Cho
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - H Park
- Samsung Biomedical Research Institute, Samsung Medical Center, Seoul, Republic of Korea.,Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - J I Hwang
- Graduate School of Medicine, Korea University, Seoul, Republic of Korea
| | - J B Park
- Samsung Biomedical Research Institute, Samsung Medical Center, Seoul, Republic of Korea.,Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - C Ahn
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.,Transplantation Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - S J Kim
- Samsung Biomedical Research Institute, Samsung Medical Center, Seoul, Republic of Korea.,Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - J Yang
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.,Transplantation Center, Seoul National University Hospital, Seoul, Republic of Korea
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