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To NH, Pilon C, Moatti A, Debesset A, Debbi K, Coraggio G, Ksouri W, Massaria V, Cohen JL, Belkacemi Y, Thiolat A. Effect of lethal total body irradiation on bone marrow chimerism, acute graft-versus-host disease, and tumor engraftment in mouse models: impact of different radiation techniques using low- and high-energy X-rays. Strahlenther Onkol 2023; 199:1242-1254. [PMID: 36932237 DOI: 10.1007/s00066-023-02066-w] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 02/19/2023] [Indexed: 03/19/2023]
Abstract
PURPOSE Effects of X‑ray energy levels used for myeloablative lethal total body irradiation (TBI) delivery prior to bone marrow transplantation (BMT) in preclinical mouse models were examined. MATERIALS AND METHODS In mouse models, single-fraction myeloablative TBI at a lethal dose was delivered using two different X‑ray devices, either low (160 kV cabinet irradiator) or high energy (6 MV linear accelerator), before semi-allogeneic hematopoietic stem-cell transplantation (HSCT) to ensure bone marrow (BM) chimerism, graft-versus-host disease (GVHD), and tumor engraftment. Recipient mice were clinically followed for 80 days after bone marrow transplantation (BMT). Flow cytometry was performed to assess donor chimerism and tumor engraftment in recipient mice. RESULTS Both X‑ray irradiation techniques delivered a 10 Gy single fraction of TBI, presented a lethal effect, and could allow near-complete early donor chimerism on day 13. However, low-energy irradiation increased T cells' alloreactivity compared to high-energy irradiation, leading to clinical consequences for GVHD and tumor engraftment outcomes. The alloreactive effect differences might be attributed to the distinction in inflammatory status of irradiated recipients at donor cell infusion (D0). Delaying donor cell administration (D1 after lethal TBI) attenuated T cells' alloreactivity and clinical outcomes in GVHD mouse models. CONCLUSION Different X‑ray irradiation modalities condition T cell alloreactivity in experimental semi-allogeneic BMT. Low-energy X‑ray irradiator induces a post-TBI inflammatory burst and exacerbates alloreactive reactions. This technical and biological information should be considered in interpreting GVHD/ graft-versus-leukemia effect results in mice experimental models of BMT.
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Affiliation(s)
- Nhu Hanh To
- AP-HP. Radiation Oncology Department and Henri Mondor Breast Center, Henri Mondor University Hospital, Créteil, France.
- INSERM UMR 955, team I-BIOT, Institute Mondor de Recherche Biomédicale, University of Paris Est Créteil, Créteil, France.
| | - Caroline Pilon
- INSERM UMR 955, team I-BIOT, Institute Mondor de Recherche Biomédicale, University of Paris Est Créteil, Créteil, France
- AP-HP, Groupe hospitalo-universitaire Chenevier Mondor, Centre d'Investigation Clinique Biothérapie, Creteil, France
| | - Audrey Moatti
- AP-HP, Groupe hospitalo-universitaire Chenevier Mondor, Centre d'Investigation Clinique Biothérapie, Creteil, France
| | - Anaïs Debesset
- INSERM UMR 955, team I-BIOT, Institute Mondor de Recherche Biomédicale, University of Paris Est Créteil, Créteil, France
| | - Kamel Debbi
- AP-HP. Radiation Oncology Department and Henri Mondor Breast Center, Henri Mondor University Hospital, Créteil, France
- INSERM UMR 955, team I-BIOT, Institute Mondor de Recherche Biomédicale, University of Paris Est Créteil, Créteil, France
| | - Gabriele Coraggio
- AP-HP. Radiation Oncology Department and Henri Mondor Breast Center, Henri Mondor University Hospital, Créteil, France
| | - Wassim Ksouri
- AP-HP. Radiation Oncology Department and Henri Mondor Breast Center, Henri Mondor University Hospital, Créteil, France
| | - Virginie Massaria
- AP-HP. Radiation Oncology Department and Henri Mondor Breast Center, Henri Mondor University Hospital, Créteil, France
| | - José L Cohen
- INSERM UMR 955, team I-BIOT, Institute Mondor de Recherche Biomédicale, University of Paris Est Créteil, Créteil, France
- AP-HP, Groupe hospitalo-universitaire Chenevier Mondor, Centre d'Investigation Clinique Biothérapie, Creteil, France
| | - Yazid Belkacemi
- AP-HP. Radiation Oncology Department and Henri Mondor Breast Center, Henri Mondor University Hospital, Créteil, France
- INSERM UMR 955, team I-BIOT, Institute Mondor de Recherche Biomédicale, University of Paris Est Créteil, Créteil, France
| | - Allan Thiolat
- INSERM UMR 955, team I-BIOT, Institute Mondor de Recherche Biomédicale, University of Paris Est Créteil, Créteil, France
- AP-HP, Groupe hospitalo-universitaire Chenevier Mondor, Centre d'Investigation Clinique Biothérapie, Creteil, France
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