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Mashima K, Oh I, Fujiwara K, Izawa J, Takayama N, Nakano H, Kawasaki Y, Minakata D, Yamasaki R, Morita K, Ashizawa M, Yamamoto C, Hatano K, Sato K, Ohmine K, Fujiwara SI, Ohno N, Kanda Y. Comparison of alemtuzumab, anti-thymocyte globulin, and post-transplant cyclophosphamide for graft-versus-host disease and graft-versus-leukemia in murine models. PLoS One 2021; 16:e0245232. [PMID: 33428661 PMCID: PMC7799789 DOI: 10.1371/journal.pone.0245232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Accepted: 12/24/2020] [Indexed: 12/22/2022] Open
Abstract
Graft-versus-host disease is a major complication after allogeneic hematopoietic stem cell transplantation for hematological malignancies. Immunosuppressive drugs, such as anti-thymocyte globulin, alemtuzumab, and post-transplant cyclophosphamide, have been used to prevent graft-versus-host disease in HLA-mismatched haploidentical hematopoietic stem cell transplantation. Here, we investigated whether these drugs could ameliorate graft-versus-host disease without diminishing the graft-versus-leukemia effect by using a xenogeneic transplanted graft-versus-host disease/graft-versus-leukemia model. Anti-thymocyte globulin treatment diminished graft-versus-host disease symptoms, completely depleted the infiltration of inflammatory cells in the liver and intestine, and led to prolonged survival. By contrast, improvement after post-transplant cyclophosphamide treatment remained minimal. Alemtuzumab treatment modestly prolonged survival despite an apparent decrease of Tregs. In the graft-versus-leukemia model, 1.5 to 2.0 mg/kg of anti-thymocyte globulin and 0.6 to 0.9 mg/kg of alemtuzumab reduced graft-versus-host disease with minimal loss of graft-versus-leukemia effect. Mice treated with 400 mg/kg of post-transplant cyclophosphamide did not develop graft-versus-host disease or leukemia, but it was difficult to evaluate the graft-versus-leukemia effect due to the sensitivity of A20 cells to cyclophosphamide. Although the current settings provide narrow optimal therapeutic windows, further studies are warranted to maximize the benefits of each immunosuppressant.
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Affiliation(s)
- Kiyomi Mashima
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Iekuni Oh
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Ken Fujiwara
- Division of Histology and Cell Biology, Department of Anatomy, School of Medicine, Jichi Medical University, Tochigi, Japan
| | - Junko Izawa
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Norihito Takayama
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Hirofumi Nakano
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Yasufumi Kawasaki
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Daisuke Minakata
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Ryoko Yamasaki
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Kaoru Morita
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Masahiro Ashizawa
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Chihiro Yamamoto
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Kaoru Hatano
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Kazuya Sato
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Ken Ohmine
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Shin-Ichiro Fujiwara
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Nobuhiko Ohno
- Division of Histology and Cell Biology, Department of Anatomy, School of Medicine, Jichi Medical University, Tochigi, Japan
| | - Yoshinobu Kanda
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
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