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Liu T, Wang H, Kutsovsky DY, Iskols M, Chen H, Ohn CYJ, Patel N, Yang J, Simon DJ. An axon-T cell feedback loop enhances inflammation and axon degeneration. Cell Rep 2024; 43:113721. [PMID: 38310514 DOI: 10.1016/j.celrep.2024.113721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 11/20/2023] [Accepted: 01/12/2024] [Indexed: 02/06/2024] Open
Abstract
Inflammation is closely associated with many neurodegenerative disorders. Yet, whether inflammation causes, exacerbates, or responds to neurodegeneration has been challenging to define because the two processes are so closely linked. Here, we disentangle inflammation from the axon damage it causes by individually blocking cytotoxic T cell function and axon degeneration. We model inflammatory damage in mouse skin, a barrier tissue that, despite frequent inflammation, must maintain proper functioning of a dense array of axon terminals. We show that sympathetic axons modulate skin inflammation through release of norepinephrine, which suppresses activation of γδ T cells via the β2 adrenergic receptor. Strong inflammatory stimulation-modeled by application of the Toll-like receptor 7 agonist imiquimod-causes progressive γδ T cell-mediated, Sarm1-dependent loss of these immunosuppressive sympathetic axons. This removes a physiological brake on T cells, initiating a positive feedback loop of enhanced inflammation and further axon damage.
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Affiliation(s)
- Tingting Liu
- Department of Biochemistry, Weill Cornell Medicine, New York, NY 10065, USA; IDG/McGovern Institute for Brain Research, Peking University, Beijing 100871, China
| | - Huanhuan Wang
- IDG/McGovern Institute for Brain Research, Peking University, Beijing 100871, China
| | - Daniel Y Kutsovsky
- Department of Biochemistry, Weill Cornell Medicine, New York, NY 10065, USA
| | - Michael Iskols
- Department of Biochemistry, Weill Cornell Medicine, New York, NY 10065, USA
| | - Hongjie Chen
- IDG/McGovern Institute for Brain Research, Peking University, Beijing 100871, China
| | - Christine Y J Ohn
- Department of Biochemistry, Weill Cornell Medicine, New York, NY 10065, USA
| | - Nandan Patel
- Department of Biochemistry, Weill Cornell Medicine, New York, NY 10065, USA
| | - Jing Yang
- IDG/McGovern Institute for Brain Research, Peking University, Beijing 100871, China
| | - David J Simon
- Department of Biochemistry, Weill Cornell Medicine, New York, NY 10065, USA.
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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] [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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Bell BI, Vercellino J, Brodin NP, Velten C, Nanduri LSY, Nagesh PK, Tanaka KE, Fang Y, Wang Y, Macedo R, English J, Schumacher MM, Duddempudi PK, Asp P, Koba W, Shajahan S, Liu L, Tomé WA, Yang WL, Kolesnick R, Guha C. Orthovoltage X-Rays Exhibit Increased Efficacy Compared with γ-Rays in Preclinical Irradiation. Cancer Res 2022; 82:2678-2691. [PMID: 35919990 PMCID: PMC9354647 DOI: 10.1158/0008-5472.can-22-0656] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/15/2022] [Accepted: 06/10/2022] [Indexed: 02/05/2023]
Abstract
Radionuclide irradiators (137Cs and 60Co) are commonly used in preclinical studies ranging from cancer therapy to stem cell biology. Amidst concerns of radiological terrorism, there are institutional initiatives to replace radionuclide sources with lower energy X-ray sources. As researchers transition, questions remain regarding whether the biological effects of γ-rays may be recapitulated with orthovoltage X-rays because different energies may induce divergent biological effects. We therefore sought to compare the effects of orthovoltage X-rays with 1-mm Cu or Thoraeus filtration and 137Cs γ-rays using mouse models of acute radiation syndrome. Following whole-body irradiation, 30-day overall survival was assessed, and the lethal dose to provoke 50% mortality within 30-days (LD50) was calculated by logistic regression. LD50 doses were 6.7 Gy, 7.4 Gy, and 8.1 Gy with 1-mm Cu-filtered X-rays, Thoraeus-filtered X-rays, and 137Cs γ-rays, respectively. Comparison of bone marrow, spleen, and intestinal tissue from mice irradiated with equivalent doses indicated that injury was most severe with 1-mm Cu-filtered X-rays, which resulted in the greatest reduction in bone marrow cellularity, hematopoietic stem and progenitor populations, intestinal crypts, and OLFM4+ intestinal stem cells. Thoraeus-filtered X-rays provoked an intermediate phenotype, with 137Cs showing the least damage. This study reveals a dichotomy between physical dose and biological effect as researchers transition to orthovoltage X-rays. With decreasing energy, there is increasing hematopoietic and intestinal injury, necessitating dose reduction to achieve comparable biological effects. SIGNIFICANCE Understanding the significance of physical dose delivered using energetically different methods of radiation treatment will aid the transition from radionuclide γ-irradiators to orthovoltage X-irradiators.
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Affiliation(s)
- Brett I. Bell
- Department of Radiation Oncology, Montefiore Medical Center, Bronx, NY, USA
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Justin Vercellino
- Department of Radiation Oncology, Montefiore Medical Center, Bronx, NY, USA
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - N. Patrik Brodin
- Department of Radiation Oncology, Montefiore Medical Center, Bronx, NY, USA
| | - Christian Velten
- Department of Radiation Oncology, Montefiore Medical Center, Bronx, NY, USA
| | | | - Prashanth K.B. Nagesh
- Laboratory of Signal Transduction, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - Kathryn E. Tanaka
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Yanan Fang
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Yanhua Wang
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Rodney Macedo
- Department of Radiation Oncology, Montefiore Medical Center, Bronx, NY, USA
| | - Jeb English
- Department of Radiation Oncology, Montefiore Medical Center, Bronx, NY, USA
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Michelle M. Schumacher
- Department of Radiation Oncology, Montefiore Medical Center, Bronx, NY, USA
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, USA
| | | | - Patrik Asp
- Department of Radiation Oncology, Montefiore Medical Center, Bronx, NY, USA
| | - Wade Koba
- Department of Radiology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Shahin Shajahan
- Department of Radiation Oncology, Montefiore Medical Center, Bronx, NY, USA
| | - Laibin Liu
- Department of Radiation Oncology, Montefiore Medical Center, Bronx, NY, USA
| | - Wolfgang A. Tomé
- Department of Radiation Oncology, Montefiore Medical Center, Bronx, NY, USA
- Department of Neurology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Weng-Lang Yang
- Department of Radiation Oncology, Montefiore Medical Center, Bronx, NY, USA
| | - Richard Kolesnick
- Laboratory of Signal Transduction, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - Chandan Guha
- Department of Radiation Oncology, Montefiore Medical Center, Bronx, NY, USA
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, USA
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Brickey WJ, Thompson MA, Sheng Z, Li Z, Owzar K, Ting JP. Re-Examination of the Exacerbating Effect of Inflammasome Components during Radiation Injury. Radiat Res 2022; 197:199-204. [PMID: 34855933 PMCID: PMC8982344 DOI: 10.1667/rade-21-00142.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 10/08/2021] [Indexed: 11/03/2022]
Abstract
Radiation can be applied for therapeutic benefit against cancer or may result in devastating harm due to accidental or intentional release of nuclear energy. In all cases, radiation exposure causes molecular and cellular damage, resulting in the production of inflammatory factors and danger signals. Several classes of innate immune receptors sense the released damage associated molecules and activate cellular response pathways, including the induction of inflammasome signaling that impacts IL-1β/IL-18 maturation and cell death. A previous report indicated inflammasomes aggravate acute radiation syndrome. In contrast, here we find that inflammasome components do not exacerbate gamma-radiation-induced injury by examining heterozygous and gene-deletion littermate controls in addition to wild-type mice. Absence of some inflammasome genes, such as caspase-1/11 and Nlrp3, enhance susceptibility of treated mice to acute radiation injury, indicating importance of the inflammasome pathway in radioprotection. Surprisingly, we discover that the survival outcome may be sex-dependent as more inflammasome-deficient male mice are susceptible to radiation-induced injury. We discuss parameters that may influence the role of inflammasomes as radioprotective or radioexacerbating factors in recovery from radiation injury including the use of littermate controls, the sex of the animals, differences in microbiota within the colonies and other experimental conditions. Under the conditions tested, inflammasome components do not exacerbate radiation injury, but rather provide protective benefit.
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Affiliation(s)
- W. June Brickey
- Department of Microbiology-Immunology, University of North Carolina at Chapel Hill, North Carolina, 27599, USA
| | - Michael A. Thompson
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, North Carolina, 27599, USA
| | - Zhecheng Sheng
- Duke Cancer Institute, Duke University School of Medicine, Durham, North Carolina, 27705, USA
| | - Zhiguo Li
- Duke Cancer Institute, Duke University School of Medicine, Durham, North Carolina, 27705, USA
- Department of Biostatistics & Bioinformatics, Duke University School of Medicine, Durham, North Carolina, 27705, USA
| | - Kouros Owzar
- Duke Cancer Institute, Duke University School of Medicine, Durham, North Carolina, 27705, USA
- Department of Biostatistics & Bioinformatics, Duke University School of Medicine, Durham, North Carolina, 27705, USA
| | - Jenny P.Y. Ting
- Department of Microbiology-Immunology, University of North Carolina at Chapel Hill, North Carolina, 27599, USA
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, North Carolina, 27599, USA
- Department of Genetics, University of North Carolina at Chapel Hill, North Carolina, 27599, USA
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Wittenborn TR, Fahlquist Hagert C, Ferapontov A, Fonager S, Jensen L, Winther G, Degn SE. Comparison of gamma and x-ray irradiation for myeloablation and establishment of normal and autoimmune syngeneic bone marrow chimeras. PLoS One 2021; 16:e0247501. [PMID: 33730087 PMCID: PMC7968675 DOI: 10.1371/journal.pone.0247501] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 02/09/2021] [Indexed: 02/07/2023] Open
Abstract
Murine bone marrow (BM) chimeras are a versatile and valuable research tool in stem cell and immunology research. Engraftment of donor BM requires myeloablative conditioning of recipients. The most common method used for mice is ionizing radiation, and Cesium-137 gamma irradiators have been preferred. However, radioactive sources are being out-phased worldwide due to safety concerns, and are most commonly replaced by X-ray sources, creating a need to compare these sources regarding efficiency and potential side effects. Prior research has proven both methods capable of efficiently ablating BM cells and splenocytes in mice, but with moderate differences in resultant donor chimerism across tissues. Here, we compared Cesium-137 to 350 keV X-ray irradiation with respect to immune reconstitution, assaying complete, syngeneic BM chimeras and a mixed chimera model of autoimmune disease. Based on dose titration, we find that both gamma and X-ray irradiation can facilitate a near-complete donor chimerism. Mice subjected to 13 Gy Cesium-137 irradiation and reconstituted with syngeneic donor marrow were viable and displayed high donor chimerism, whereas X-ray irradiated mice all succumbed at 13 Gy. However, a similar degree of chimerism as that obtained following 13 Gy gamma irradiation could be achieved by 11 Gy X-ray irradiation, about 85% relative to the gamma dose. In the mixed chimera model of autoimmune disease, we found that a similar autoimmune phenotype could be achieved irrespective of irradiation source used. It is thus possible to compare data generated, regardless of the irradiation source, but every setup and application likely needs individual optimization.
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Affiliation(s)
- Thomas Rea Wittenborn
- The Laboratory for Lymphocyte Biology, Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Cecilia Fahlquist Hagert
- The Laboratory for Lymphocyte Biology, Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Alexey Ferapontov
- The Laboratory for Lymphocyte Biology, Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Sofie Fonager
- The Laboratory for Lymphocyte Biology, Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Lisbeth Jensen
- The Laboratory for Lymphocyte Biology, Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Gudrun Winther
- The Laboratory for Lymphocyte Biology, Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Søren Egedal Degn
- The Laboratory for Lymphocyte Biology, Department of Biomedicine, Aarhus University, Aarhus, Denmark
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