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Zhao M, Aintablian H, Satcher RL, Daneshjou R, Rosenbach M. Dermatologic Considerations for Spaceflight and Space Exploration. JID INNOVATIONS 2024; 4:100293. [PMID: 39104566 PMCID: PMC11298918 DOI: 10.1016/j.xjidi.2024.100293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/07/2024] Open
Affiliation(s)
- Megan Zhao
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Haig Aintablian
- Department of Emergency Medicine, University of California Los Angeles, Los Angeles, California, USA
| | - Robert L. Satcher
- Department of Orthopedic Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Roxana Daneshjou
- Department of Dermatology, Stanford University School of Medicine, Stanford, California, USA
| | - Misha Rosenbach
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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2
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Smith MB, Chen H, Oliver BGG. The Lungs in Space: A Review of Current Knowledge and Methodologies. Cells 2024; 13:1154. [PMID: 38995005 PMCID: PMC11240436 DOI: 10.3390/cells13131154] [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: 05/22/2024] [Revised: 07/04/2024] [Accepted: 07/04/2024] [Indexed: 07/13/2024] Open
Abstract
Space travel presents multiple risks to astronauts such as launch, radiation, spacewalks or extravehicular activities, and microgravity. The lungs are composed of a combination of air, blood, and tissue, making it a complex organ system with interactions between the external and internal environment. Gravity strongly influences the structure of the lung which results in heterogeneity of ventilation and perfusion that becomes uniform in microgravity as shown during parabolic flights, Spacelab, and Skylab experiments. While changes in lung volumes occur in microgravity, efficient gas exchange remains and the lungs perform as they would on Earth; however, little is known about the cellular response to microgravity. In addition to spaceflight and real microgravity, devices, such as clinostats and random positioning machines, are used to simulate microgravity to study cellular responses on the ground. Differential expression of cell adhesion and extracellular matrix molecules has been found in real and simulated microgravity. Immune dysregulation is a known consequence of space travel that includes changes in immune cell morphology, function, and number, which increases susceptibility to infections. However, the majority of in vitro studies do not have a specific respiratory focus. These studies are needed to fully understand the impact of microgravity on the function of the respiratory system in different conditions.
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Affiliation(s)
- Michaela B Smith
- Respiratory Cell and Molecular Biology Group, Woolcock Institute of Medical Research, Macquarie Park, NSW 2113, Australia
- School of Life Science, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Hui Chen
- School of Life Science, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Brian G G Oliver
- Respiratory Cell and Molecular Biology Group, Woolcock Institute of Medical Research, Macquarie Park, NSW 2113, Australia
- School of Life Science, University of Technology Sydney, Ultimo, NSW 2007, Australia
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Fonte C, Jacob P, Vanet A, Ghislin S, Frippiat JP. Hindlimb unloading, a physiological model of microgravity, modifies the murine bone marrow IgM repertoire in a similar manner as aging but less strongly. Immun Ageing 2023; 20:64. [PMID: 37986079 PMCID: PMC10659048 DOI: 10.1186/s12979-023-00393-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 11/12/2023] [Indexed: 11/22/2023]
Abstract
BACKGROUND The spaceflight environment is an extreme environment that affects the immune system of approximately 50% of astronauts. With planned long-duration missions, such as the deployment of the Lunar Gateway and possible interplanetary missions, it is mandatory to determine how all components of the immune system are affected, which will allow the establishment of countermeasures to preserve astronaut health. However, despite being an important component of the immune system, antibody-mediated humoral immunity has rarely been investigated in the context of the effects of the space environment. It has previously been demonstrated that 30 days aboard the BION-M1 satellite and 21 days of hindlimb unloading (HU), a model classically used to mimic the effects of microgravity, decrease murine B lymphopoiesis. Furthermore, modifications in B lymphopoiesis reported in young mice subjected to 21 days of HU were shown to be similar to those observed in aged mice (18-22 months). Since the primary antibody repertoire composed of IgM is created by V(D) J recombination during B lymphopoiesis, the objective of this study was to assess the degree of similarity between changes in the bone marrow IgM repertoire and in the V(D)J recombination process in 2.5-month-old mice subjected to 21 days of HU and aged (18 months) mice. RESULTS We found that in 21 days, HU induced changes in the IgM repertoire that were approximately 3-fold less than those in aged mice, which is a rapid effect. Bone remodeling and epigenetics likely mediate these changes. Indeed, we previously demonstrated a significant decrease in tibial morphometric parameters from day 6 of HU and a progressive reduction in these parameters until day 21 of HU, and it has been shown that age and microgravity induce epigenetic changes. CONCLUSION These data reveal novel immune changes that are akin to advanced aging and underline the importance of studying the effects of spaceflight on antibody-mediated humoral immunity.
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Affiliation(s)
- Coralie Fonte
- Stress Immunity Pathogens Laboratory, UR 7300 SIMPA, Faculty of Medicine, Lorraine University, Vandoeuvre-lès, Nancy, France
| | - Pauline Jacob
- Stress Immunity Pathogens Laboratory, UR 7300 SIMPA, Faculty of Medicine, Lorraine University, Vandoeuvre-lès, Nancy, France
| | - Anne Vanet
- Université Paris Cité, CNRS, Institut Jacques Monod, F-75013, Paris, France
| | - Stéphanie Ghislin
- Stress Immunity Pathogens Laboratory, UR 7300 SIMPA, Faculty of Medicine, Lorraine University, Vandoeuvre-lès, Nancy, France
| | - Jean-Pol Frippiat
- Stress Immunity Pathogens Laboratory, UR 7300 SIMPA, Faculty of Medicine, Lorraine University, Vandoeuvre-lès, Nancy, France.
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4
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Egashira K, Ino Y, Nakai Y, Ohira T, Akiyama T, Moriyama K, Yamamoto Y, Kimura M, Ryo A, Saito T, Inaba Y, Hirano H, Kumagai K, Kimura Y. Identification of gravity-responsive proteins in the femur of spaceflight mice using a quantitative proteomic approach. J Proteomics 2023; 288:104976. [PMID: 37482271 DOI: 10.1016/j.jprot.2023.104976] [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: 04/25/2023] [Revised: 07/11/2023] [Accepted: 07/17/2023] [Indexed: 07/25/2023]
Abstract
Although the microgravity (μ-g) environment that astronauts encounter during spaceflight can cause severe acute bone loss, the molecular mechanism of this bone loss remains unclear. To investigate the gravity-response proteins involved in bone metabolism, it is important to comprehensively determine which proteins exhibit differential abundance associated with mechanical stimuli. However, comprehensive proteomic analysis using small bone samples is difficult because protein extraction in mineralized bone tissue is inefficient. Here, we established a high-sensitivity analysis system for mouse bone proteins using data-independent acquisition mass spectrometry. This system successfully detected 40 proteins in the femoral diaphysis showing differential abundance between mice raised in a μ-g environment, where the bone mass was reduced by gravity unloading, and mice raised in an artificial 1-gravity environment on the International Space Station. Additionally, 22 proteins, including noncollagenous bone matrix proteins, showed similar abundance between the two groups in the mandible, where bone mass was unaltered due to mastication stimuli, suggesting that these proteins are responsive to mechanical stimuli. One of these proteins, SPARCL1, is suggested to promote osteoclastogenesis induced by receptor activator of nuclear factor-κB ligand. We expect these findings to lead to new insights into the mechanisms of bone metabolism induced by mechanical stimuli. SIGNIFICANCE: We aimed to investigate the gravity-response proteins involved in bone metabolism. To this end, we established a comprehensive analysis system for mouse bone proteins using data-independent acquisition mass spectrometry, which is particularly useful in comprehensively analyzing the bone proteome using small sample volumes. In addition, a comprehensive proteomic analysis of the femoral diaphysis and mandible, which exhibit different degrees of bone loss in mice raised on the International Space Station, identified proteins that respond to mechanical stimuli. SPARCL1, a mechanical stimulus-responsive protein, was consequently suggested to be involved in osteoclast differentiation associated with bone remodeling. Our findings represent an important step toward elucidating the molecular mechanism of bone metabolism induced by mechanical stimuli.
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Affiliation(s)
- Kenji Egashira
- Advanced Medical Research Center, Yokohama City University, Yokohama 236-0004, Japan; R&D Headquarters, LION Corporation, Tokyo 132-0035, Japan
| | - Yoko Ino
- Advanced Medical Research Center, Yokohama City University, Yokohama 236-0004, Japan
| | - Yusuke Nakai
- Advanced Medical Research Center, Yokohama City University, Yokohama 236-0004, Japan
| | - Takashi Ohira
- Advanced Medical Research Center, Yokohama City University, Yokohama 236-0004, Japan; Department of Physiology and Regenerative Medicine, Kindai University Faculty of Medicine, Osaka 589-8511, Japan
| | - Tomoko Akiyama
- Advanced Medical Research Center, Yokohama City University, Yokohama 236-0004, Japan
| | - Kayano Moriyama
- Advanced Medical Research Center, Yokohama City University, Yokohama 236-0004, Japan
| | - Yu Yamamoto
- Advanced Medical Research Center, Yokohama City University, Yokohama 236-0004, Japan; R&D Headquarters, LION Corporation, Tokyo 132-0035, Japan
| | - Mitsuo Kimura
- R&D Headquarters, LION Corporation, Tokyo 132-0035, Japan
| | - Akihide Ryo
- Advanced Medical Research Center, Yokohama City University, Yokohama 236-0004, Japan
| | - Tomoyuki Saito
- Yokohama Brain and Spine Center, Yokohama 235-0012, Japan
| | - Yutaka Inaba
- Department of Orthopaedic Surgery, Yokohama City University, Yokohama 236-0004, Japan
| | - Hisashi Hirano
- Advanced Medical Research Center, Yokohama City University, Yokohama 236-0004, Japan
| | - Ken Kumagai
- Department of Orthopaedic Surgery, Yokohama City University, Yokohama 236-0004, Japan
| | - Yayoi Kimura
- Advanced Medical Research Center, Yokohama City University, Yokohama 236-0004, Japan.
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5
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Jacob P, Oertlin C, Baselet B, Westerberg LS, Frippiat JP, Baatout S. Next generation of astronauts or ESA astronaut 2.0 concept and spotlight on immunity. NPJ Microgravity 2023; 9:51. [PMID: 37380641 DOI: 10.1038/s41526-023-00294-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 06/15/2023] [Indexed: 06/30/2023] Open
Abstract
Although we have sent humans into space for more than 50 years, crucial questions regarding immune response in space conditions remain unanswered. There are many complex interactions between the immune system and other physiological systems in the human body. This makes it difficult to study the combined long-term effects of space stressors such as radiation and microgravity. In particular, exposure to microgravity and cosmic radiation may produce changes in the performance of the immune system at the cellular and molecular levels and in the major physiological systems of the body. Consequently, abnormal immune responses induced in the space environment may have serious health consequences, especially in future long-term space missions. In particular, radiation-induced immune effects pose significant health challenges for long-duration space exploration missions with potential risks to reduce the organism's ability to respond to injuries, infections, and vaccines, and predispose astronauts to the onset of chronic diseases (e.g., immunosuppression, cardiovascular and metabolic diseases, gut dysbiosis). Other deleterious effects encountered by radiation may include cancer and premature aging, induced by dysregulated redox and metabolic processes, microbiota, immune cell function, endotoxin, and pro-inflammatory signal production1,2. In this review, we summarize and highlight the current understanding of the effects of microgravity and radiation on the immune system and discuss knowledge gaps that future studies should address.
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Affiliation(s)
- Pauline Jacob
- Stress Immunity Pathogens Laboratory, UR 7300 SIMPA, Faculty of Medicine, Université de Lorraine, Vandœuvre-lès-Nancy, France
| | - Christian Oertlin
- Karolinska Institutet, Department of Microbiology Tumor and Cell biology, Stockholm, SE-17177, Sweden
| | - Bjorn Baselet
- Radiobiology Unit, Belgian Nuclear Research Centre, SCK CEN, Mol, Belgium
| | - Lisa S Westerberg
- Karolinska Institutet, Department of Microbiology Tumor and Cell biology, Stockholm, SE-17177, Sweden
| | - Jean-Pol Frippiat
- Stress Immunity Pathogens Laboratory, UR 7300 SIMPA, Faculty of Medicine, Université de Lorraine, Vandœuvre-lès-Nancy, France
| | - Sarah Baatout
- Radiobiology Unit, Belgian Nuclear Research Centre, SCK CEN, Mol, Belgium.
- Department of Molecular Biotechnology, Gent University, Gent, Belgium.
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6
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Lv H, Yang H, Jiang C, Shi J, Chen RA, Huang Q, Shao D. Microgravity and immune cells. J R Soc Interface 2023; 20:20220869. [PMID: 36789512 PMCID: PMC9929508 DOI: 10.1098/rsif.2022.0869] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
Abstract
The microgravity environment experienced during spaceflight severely impaired immune system, making astronauts vulnerable to various diseases that seriously threaten the health of astronauts. Immune cells are exceptionally sensitive to changes in gravity and the microgravity environment can affect multiple aspects of immune cells through different mechanisms. Previous reports have mainly summarized the role of microgravity in the classification of innate and adaptive immune cells, lacking an overall grasp of the laws that microgravity effects on immune cells at different stages of their entire developmental process, such as differentiation, activation, metabolism, as well as function, which are discussed and concluded in this review. The possible molecular mechanisms are also analysed to provide a clear understanding of the specific role of microgravity in the whole development process of immune cells. Furthermore, the existing methods by which to reverse the damage of immune cells caused by microgravity, such as the use of polysaccharides, flavonoids, other natural immune cell activators etc. to target cell proliferation, apoptosis and impaired function are summarized. This review will provide not only new directions and ideas for the study of immune cell function in the microgravity environment, but also an important theoretical basis for the development of immunosuppression prevention and treatment drugs for spaceflight.
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Affiliation(s)
- Hongfang Lv
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
| | - Huan Yang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
| | - Chunmei Jiang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
| | - Junling Shi
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
| | - Ren-an Chen
- Hematology Department, Shaanxi Provincial Tumor Hospital, 309 Yanta West Road, Xi'an, Shaanxi 710072, People's Republic of China
| | - Qingsheng Huang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
| | - Dongyan Shao
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
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7
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Simulated Microgravity Created Using a Random Positioning Machine Induces Changes in the Physiology of the Fusarium solani Species Complex. Microorganisms 2022; 10:microorganisms10112270. [DOI: 10.3390/microorganisms10112270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 10/28/2022] [Accepted: 11/11/2022] [Indexed: 11/17/2022] Open
Abstract
Fusarium is a phytopathogenic fungus involved in human pathology and is present in space stations. It is essential to understand the effects of microgravity on the physiology of this fungus to determine the potential risks to the health of crew members and to propose the necessary countermeasures. This study aimed to determine changes in the physiological parameters of the Fusarium solani species complex under simulated microgravity generated using a random positioning machine (RPM) and phenotypic approaches. We observed increased growth, spore production, and germination while biofilm production was reduced under RPM exposure. These in vitro data show the importance of further studying this fungus as it has been repeatedly demonstrated that microgravity weakens the immune system of astronauts.
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8
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Calcagno G, Ouzren N, Kaminski S, Ghislin S, Frippiat JP. Chronic Hypergravity Induces a Modification of Histone H3 Lysine 27 Trimethylation at TCRβ Locus in Murine Thymocytes. Int J Mol Sci 2022; 23:7133. [PMID: 35806138 PMCID: PMC9267123 DOI: 10.3390/ijms23137133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 06/24/2022] [Accepted: 06/25/2022] [Indexed: 11/16/2022] Open
Abstract
Gravity changes are major stressors encountered during spaceflight that affect the immune system. We previously evidenced that hypergravity exposure during gestation affects the TCRβ repertoire of newborn pups. To identify the mechanisms underlying this observation, we studied post-translational histone modifications. We first showed that among the four studied post-translational histone H3 modifications, only lysine 27 trimethylation (H3K27me3) is downregulated in the thymus of mice exposed to 2× g for 21 days. We then asked whether the TCRβ locus chromatin structure is altered by hypergravity exposure. ChIP studies performed on four Vβ segments of the murine double-negative SCIET27 thymic cell line, which corresponds to the last maturation stage before V(D)J recombination, revealed increases in H3K27me3 after 2× g exposure. Finally, we evaluated the implication for the EZH2 methyltransferase in the regulation of the H3K27me3 level at these Vβ segments by treating SCIET27 cells with the GSK126-specific inhibitor. These experiments showed that the downregulation of H3K27me3 contributes to the regulation of the Vβ germline transcript expression that precedes V(D)J recombination. These data show that modifications of H3K27me3 at the TCRβ locus likely contribute to an explanation of why the TCR repertoire is affected by gravity changes and imply, for the first time, EZH2 in the regulation of the TCRβ locus chromatin structure.
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Siamwala JH, Macias BR, Healey R, Bennett B, Hargens AR. Spaceflight-Associated Vascular Remodeling and Gene Expression in Mouse Calvaria. Front Physiol 2022; 13:893025. [PMID: 35634164 PMCID: PMC9139491 DOI: 10.3389/fphys.2022.893025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 04/26/2022] [Indexed: 11/21/2022] Open
Abstract
Astronauts suffer from a loss of bone mass at a rate of 1.5% per month from lower regions of the body during the course of long-duration (>30 days) spaceflight, a phenomenon that poses important risks for returning crew. Conversely, a gain in bone mass may occur in non-load bearing regions of the body as related to microgravity-induced cephalad fluid shift. Representing non-load bearing regions with mouse calvaria and leveraging the STS-131 (15-day) and BION-M1 (30-day) flights, we examined spatial and temporal calvarial vascular remodeling and gene expression related to microgravity exposure compared between spaceflight (SF) and ground control (GC) cohorts. We examined parasagittal capillary numbers and structures in calvaria from 16 to 23 week-old C57BL/6 female mice (GC, n = 4; SF, n = 5) from STS-131 and 19–20 week-old C57BL/6 male mice (GC, n = 6; SF, n = 6) from BION-M1 using a robust isolectin-IB4 vessel marker. We found that the vessel diameter reduces significantly in mice exposed to 15 days of spaceflight relative to control. Capillarization increases by 30% (SF vs. GC, p = 0.054) in SF mice compared to GC mice. The vessel numbers and diameter remain unchanged in BION-M1 mice calvarial section. We next analyzed the parietal pro-angiogenic (VEGFA) and pro-osteogenic gene (BMP-2, DMP1, RUNX2 and OCN) expression in BION-M1 mice using quantitative RT-PCR. VEGFA gene expression increased 15-fold while BMP-2 gene expression increased 11-fold in flight mice compared to GC. The linkage between vascular morphology and gene expression in the SF conditions suggests that angiogenesis may be important in the regulation of pathological bone growth in non-weight bearing regions of the body. Short-duration microgravity-mediated bone restructuring has implications in planning effective countermeasures for long-duration flights and extraterrestrial human habitation.
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Affiliation(s)
- Jamila H. Siamwala
- Department of Orthopedic Surgery, University of California, San Diego, San Diego, CA, United States
- Department of Molecular Physiology, Pharmacology and Biotechnology, Brown University, Providence, RI, United States
- Vascular Research Laboratory, Providence Veterans Affairs Medical Center, Providence, RI, United States
- *Correspondence: Jamila H. Siamwala,
| | - Brandon R. Macias
- Department of Orthopedic Surgery, University of California, San Diego, San Diego, CA, United States
- KBRwyle, Houston, TX, United States
| | - Robert Healey
- Department of Orthopedic Surgery, University of California, San Diego, San Diego, CA, United States
| | - Brett Bennett
- Association of Spaceflight Professionals, St. Petersburg, FL, United States
| | - Alan R. Hargens
- Department of Orthopedic Surgery, University of California, San Diego, San Diego, CA, United States
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10
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Bonnefoy J, Baselet B, Moser D, Ghislin S, Miranda S, Riant E, Vermeesen R, Keiler AM, Baatout S, Choukér A, Frippiat JP. B-Cell Homeostasis Is Maintained During Two Months of Head-Down Tilt Bed Rest With or Without Antioxidant Supplementation. Front Immunol 2022; 13:830662. [PMID: 35251019 PMCID: PMC8892569 DOI: 10.3389/fimmu.2022.830662] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 01/27/2022] [Indexed: 11/24/2022] Open
Abstract
Alterations of the immune system could seriously impair the ability to combat infections during future long-duration space missions. However, little is known about the effects of spaceflight on the B-cell compartment. Given the limited access to astronaut samples, we addressed this question using blood samples collected from 20 healthy male volunteers subjected to long-duration bed rest, an Earth-based analog of spaceflight. Hematopoietic progenitors, white blood cells, total lymphocytes and B-cells, four B-cell subsets, immunoglobulin isotypes, six cytokines involved in inflammation, cortisone and cortisol were quantified at five time points. Tibia microarchitecture was also studied. Moreover, we investigated the efficiency of antioxidant supplementation with a cocktail including polyphenols, omega 3, vitamin E and selenium. Our results show that circulating hematopoietic progenitors, white blood cells, total lymphocytes and B-cells, and B-cell subsets were not affected by bed rest. Cytokine quantification suggested a lower systemic inflammatory status, supported by an increase in serum cortisone, during bed rest. These data confirm the in vivo hormonal dysregulation of immunity observed in astronauts and show that bed rest does not alter B-cell homeostasis. This lack of an impact of long-term bed rest on B-cell homeostasis can, at least partially, be explained by limited bone remodeling. None of the evaluated parameters were affected by the administration of the antioxidant supplement. The non-effectiveness of the supplement may be because the diet provided to the non-supplemented and supplemented volunteers already contained sufficient antioxidants. Given the limitations of this model, further studies will be required to determine whether B-cell homeostasis is affected, especially during future deep-space exploration missions that will be of unprecedented durations.
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Affiliation(s)
- Julie Bonnefoy
- Stress Immunity Pathogens Laboratory, UR7300 SIMPA, Faculty of Medicine, Université de Lorraine, Vandoeuvre-lès-Nancy, France
| | - Bjorn Baselet
- Radiobiology Unit, Institute for Environment, Health and Safety, Belgian Nuclear Research Center (SCK CEN), Mol, Belgium
| | - Dominique Moser
- Laboratory of Translational Research Stress and Immunity, Department of Anesthesiology, Hospital of the Ludwig-Maximilians-University (LUM), Munich, Germany
| | - Stéphanie Ghislin
- Stress Immunity Pathogens Laboratory, UR7300 SIMPA, Faculty of Medicine, Université de Lorraine, Vandoeuvre-lès-Nancy, France
| | - Silvana Miranda
- Radiobiology Unit, Institute for Environment, Health and Safety, Belgian Nuclear Research Center (SCK CEN), Mol, Belgium
| | - Elodie Riant
- Cytometry Facility, I2MC, Université de Toulouse, Inserm, Université Toulouse III - Paul Sabatier (UPS), TRI Genotoul, Toulouse, France
| | - Randy Vermeesen
- Radiobiology Unit, Institute for Environment, Health and Safety, Belgian Nuclear Research Center (SCK CEN), Mol, Belgium
| | | | - Sarah Baatout
- Radiobiology Unit, Institute for Environment, Health and Safety, Belgian Nuclear Research Center (SCK CEN), Mol, Belgium.,Department of Molecular Biotechnology, Faculty of Biosciences Engineering, Ghent University, Ghent, Belgium
| | - Alexander Choukér
- Laboratory of Translational Research Stress and Immunity, Department of Anesthesiology, Hospital of the Ludwig-Maximilians-University (LUM), Munich, Germany
| | - Jean-Pol Frippiat
- Stress Immunity Pathogens Laboratory, UR7300 SIMPA, Faculty of Medicine, Université de Lorraine, Vandoeuvre-lès-Nancy, France
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11
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Rozo A, Moeyersons J, Morales J, Garcia van der Westen R, Lijnen L, Smeets C, Jantzen S, Monpellier V, Ruttens D, Van Hoof C, Van Huffel S, Groenendaal W, Varon C. Data Augmentation and Transfer Learning for Data Quality Assessment in Respiratory Monitoring. Front Bioeng Biotechnol 2022; 10:806761. [PMID: 35237576 PMCID: PMC8884147 DOI: 10.3389/fbioe.2022.806761] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 01/14/2022] [Indexed: 12/31/2022] Open
Abstract
Changes in respiratory rate have been found to be one of the early signs of health deterioration in patients. In remote environments where diagnostic tools and medical attention are scarce, such as deep space exploration, the monitoring of the respiratory signal becomes crucial to timely detect life-threatening conditions. Nowadays, this signal can be measured using wearable technology; however, the use of such technology is often hampered by the low quality of the recordings, which leads more often to wrong diagnosis and conclusions. Therefore, to apply these data in diagnosis analysis, it is important to determine which parts of the signal are of sufficient quality. In this context, this study aims to evaluate the performance of a signal quality assessment framework, where two machine learning algorithms (support vector machine-SVM, and convolutional neural network-CNN) were used. The models were pre-trained using data of patients suffering from chronic obstructive pulmonary disease. The generalization capability of the models was evaluated by testing them on data from a different patient population, presenting normal and pathological breathing. The new patients underwent bariatric surgery and performed a controlled breathing protocol, displaying six different breathing patterns. Data augmentation (DA) and transfer learning (TL) were used to increase the size of the training set and to optimize the models for the new dataset. The effect of the different breathing patterns on the performance of the classifiers was also studied. The SVM did not improve when using DA, however, when using TL, the performance improved significantly (p < 0.05) compared to DA. The opposite effect was observed for CNN, where the biggest improvement was obtained using DA, while TL did not show a significant change. The models presented a low performance for shallow, slow and fast breathing patterns. These results suggest that it is possible to classify respiratory signals obtained with wearable technologies using pre-trained machine learning models. This will allow focusing on the relevant data and avoid misleading conclusions because of the noise, when designing bio-monitoring systems.
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Affiliation(s)
- Andrea Rozo
- STADIUS Center for Dynamical Systems, Signal Processing and Data Analytics, Department of Electrical Engineering (ESAT), KU Leuven, Leuven, Belgium.,Microgravity Research Center, Service Chimie-Physique, Université Libre de Bruxelles, Brussels, Belgium
| | - Jonathan Moeyersons
- STADIUS Center for Dynamical Systems, Signal Processing and Data Analytics, Department of Electrical Engineering (ESAT), KU Leuven, Leuven, Belgium
| | - John Morales
- STADIUS Center for Dynamical Systems, Signal Processing and Data Analytics, Department of Electrical Engineering (ESAT), KU Leuven, Leuven, Belgium
| | | | - Lien Lijnen
- Department of Medicine and Life Sciences, Hasselt University, Diepenbeek, Belgium
| | - Christophe Smeets
- Future Health department, Pneumology department, Ziekenhuis Oost-Limburg, Genk, Belgium
| | | | | | - David Ruttens
- Department of Medicine and Life Sciences, Hasselt University, Diepenbeek, Belgium.,Future Health department, Pneumology department, Ziekenhuis Oost-Limburg, Genk, Belgium
| | - Chris Van Hoof
- Imec OnePlanet, Wageningen, Netherlands.,Electronic Circuits and Systems (ECS), Department of Electrical Engineering (ESAT), KU Leuven, Leuven, Belgium.,Imec, Leuven, Belgium
| | - Sabine Van Huffel
- STADIUS Center for Dynamical Systems, Signal Processing and Data Analytics, Department of Electrical Engineering (ESAT), KU Leuven, Leuven, Belgium
| | | | - Carolina Varon
- STADIUS Center for Dynamical Systems, Signal Processing and Data Analytics, Department of Electrical Engineering (ESAT), KU Leuven, Leuven, Belgium.,Microgravity Research Center, Service Chimie-Physique, Université Libre de Bruxelles, Brussels, Belgium
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12
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ElGindi M, Sapudom J, Ibrahim IH, Al-Sayegh M, Chen W, Garcia-Sabaté A, Teo JCM. May the Force Be with You (Or Not): The Immune System under Microgravity. Cells 2021; 10:1941. [PMID: 34440709 PMCID: PMC8391211 DOI: 10.3390/cells10081941] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/28/2021] [Accepted: 07/29/2021] [Indexed: 02/07/2023] Open
Abstract
All terrestrial organisms have evolved and adapted to thrive under Earth's gravitational force. Due to the increase of crewed space flights in recent years, it is vital to understand how the lack of gravitational forces affects organisms. It is known that astronauts who have been exposed to microgravity suffer from an array of pathological conditions including an impaired immune system, which is one of the most negatively affected by microgravity. However, at the cellular level a gap in knowledge exists, limiting our ability to understand immune impairment in space. This review highlights the most significant work done over the past 10 years detailing the effects of microgravity on cellular aspects of the immune system.
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Affiliation(s)
- Mei ElGindi
- Laboratory for Immuno Bioengineering Research and Applications, Division of Engineering, New York University Abu Dhabi, Abu Dhabi P.O. Box 129188, United Arab Emirates; (M.E.); (J.S.); (I.H.I.)
| | - Jiranuwat Sapudom
- Laboratory for Immuno Bioengineering Research and Applications, Division of Engineering, New York University Abu Dhabi, Abu Dhabi P.O. Box 129188, United Arab Emirates; (M.E.); (J.S.); (I.H.I.)
| | - Ibrahim Hamed Ibrahim
- Laboratory for Immuno Bioengineering Research and Applications, Division of Engineering, New York University Abu Dhabi, Abu Dhabi P.O. Box 129188, United Arab Emirates; (M.E.); (J.S.); (I.H.I.)
| | - Mohamed Al-Sayegh
- Biology Division, New York University Abu Dhabi, Abu Dhabi P.O. Box 129188, United Arab Emirates;
| | - Weiqiang Chen
- Department of Mechanical and Aerospace Engineering, New York University, Brooklyn, NY 11201, USA;
- Department of Biomedical Engineering, New York University, Brooklyn, NY 11201, USA
| | - Anna Garcia-Sabaté
- Laboratory for Immuno Bioengineering Research and Applications, Division of Engineering, New York University Abu Dhabi, Abu Dhabi P.O. Box 129188, United Arab Emirates; (M.E.); (J.S.); (I.H.I.)
| | - Jeremy C. M. Teo
- Laboratory for Immuno Bioengineering Research and Applications, Division of Engineering, New York University Abu Dhabi, Abu Dhabi P.O. Box 129188, United Arab Emirates; (M.E.); (J.S.); (I.H.I.)
- Department of Mechanical and Aerospace Engineering, New York University, Brooklyn, NY 11201, USA;
- Department of Biomedical Engineering, New York University, Brooklyn, NY 11201, USA
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13
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Paul AM, Overbey EG, da Silveira WA, Szewczyk N, Nishiyama NC, Pecaut MJ, Anand S, Galazka JM, Mao XW. Immunological and hematological outcomes following protracted low dose/low dose rate ionizing radiation and simulated microgravity. Sci Rep 2021; 11:11452. [PMID: 34075076 PMCID: PMC8169688 DOI: 10.1038/s41598-021-90439-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 05/10/2021] [Indexed: 11/09/2022] Open
Abstract
Using a ground-based model to simulate spaceflight [21-days of single-housed, hindlimb unloading (HLU) combined with continuous low-dose gamma irradiation (LDR, total dose of 0.04 Gy)], an in-depth survey of the immune and hematological systems of mice at 7-days post-exposure was performed. Collected blood was profiled with a hematology analyzer and spleens were analyzed by whole transcriptome shotgun sequencing (RNA-sequencing). The results revealed negligible differences in immune differentials. However, hematological system analyses of whole blood indicated large disparities in red blood cell differentials and morphology, suggestive of anemia. Murine Reactome networks indicated majority of spleen cells displayed differentially expressed genes (DEG) involved in signal transduction, metabolism, cell cycle, chromatin organization, and DNA repair. Although immune differentials were not changed, DEG analysis of the spleen revealed expression profiles associated with inflammation and dysregulated immune function persist to 1-week post-simulated spaceflight. Additionally, specific regulation pathways associated with human blood disease gene orthologs, such as blood pressure regulation, transforming growth factor-β receptor signaling, and B cell differentiation were noted. Collectively, this study revealed differential immune and hematological outcomes 1-week post-simulated spaceflight conditions, suggesting recovery from spaceflight is an unremitting process.
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Affiliation(s)
- Amber M Paul
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA, 94035, USA. .,Universities Space Research Association, Columbia, MD, 21046, USA. .,Department of Human Factors and Behavioral Neurobiology, Embry-Riddle Aeronautical University, Daytona Beach, FL, 32114, USA.
| | - Eliah G Overbey
- Department of Genome Sciences, University of Washington, Seattle, WA, 98195, USA
| | - Willian A da Silveira
- Faculty of Medicine, Health and Life Sciences, School of Biological Sciences, Institute for Global Food Security (IGFS), Queen's University, Belfast, BT9 5DL, Northern Ireland, UK
| | - Nathaniel Szewczyk
- Ohio Musculoskeletal and Neurological Institute and Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, 45701, USA
| | - Nina C Nishiyama
- Division of Biomedical Engineering Sciences (BMES), Department of Basic Sciences, Loma Linda University, Loma Linda, CA, 92354, USA
| | - Michael J Pecaut
- Division of Biomedical Engineering Sciences (BMES), Department of Basic Sciences, Loma Linda University, Loma Linda, CA, 92354, USA
| | - Sulekha Anand
- Department of Biological Sciences, San Jose University, San Jose, CA, 95192, USA
| | - Jonathan M Galazka
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA, 94035, USA
| | - Xiao Wen Mao
- Division of Biomedical Engineering Sciences (BMES), Department of Basic Sciences, Loma Linda University, Loma Linda, CA, 92354, USA
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14
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Gravitational Influence on Human Living Systems and the Evolution of Species on Earth. Molecules 2021; 26:molecules26092784. [PMID: 34066886 PMCID: PMC8125950 DOI: 10.3390/molecules26092784] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 10/27/2020] [Accepted: 11/05/2020] [Indexed: 12/16/2022] Open
Abstract
Gravity constituted the only constant environmental parameter, during the evolutionary period of living matter on Earth. However, whether gravity has affected the evolution of species, and its impact is still ongoing. The topic has not been investigated in depth, as this would require frequent and long-term experimentations in space or an environment of altered gravity. In addition, each organism should be studied throughout numerous generations to determine the profound biological changes in evolution. Here, we review the significant abnormalities presented in the cardiovascular, immune, vestibular and musculoskeletal systems, due to altered gravity conditions. We also review the impact that gravity played in the anatomy of snakes and amphibians, during their evolution. Overall, it appears that gravity does not only curve the space–time continuum but the biological continuum, as well.
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15
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Laiakis EC, Shuryak I, Deziel A, Wang YW, Barnette BL, Yu Y, Ullrich RL, Fornace AJ, Emmett MR. Effects of Low Dose Space Radiation Exposures on the Splenic Metabolome. Int J Mol Sci 2021; 22:3070. [PMID: 33802822 PMCID: PMC8002539 DOI: 10.3390/ijms22063070] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/14/2021] [Accepted: 03/15/2021] [Indexed: 12/12/2022] Open
Abstract
Future space missions will include a return to the Moon and long duration deep space roundtrip missions to Mars. Leaving the protection that Low Earth Orbit provides will unavoidably expose astronauts to higher cumulative doses of space radiation, in addition to other stressors, e.g., microgravity. Immune regulation is known to be impacted by both radiation and spaceflight and it remains to be seen whether prolonged effects that will be encountered in deep space can have an adverse impact on health. In this study, we investigated the effects in the overall metabolism of three different low dose radiation exposures (γ-rays, 16O, and 56Fe) in spleens from male C57BL/6 mice at 1, 2, and 4 months after exposure. Forty metabolites were identified with significant enrichment in purine metabolism, tricarboxylic acid cycle, fatty acids, acylcarnitines, and amino acids. Early perturbations were more prominent in the γ irradiated samples, while later responses shifted towards more prominent responses in groups with high energy particle irradiations. Regression analysis showed a positive correlation of the abundance of identified fatty acids with time and a negative association with γ-rays, while the degradation pathway of purines was positively associated with time. Taken together, there is a strong suggestion of mitochondrial implication and the possibility of long-term effects on DNA repair and nucleotide pools following radiation exposure.
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Affiliation(s)
- Evagelia C. Laiakis
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, Washington, DC 20057, USA; (A.D.); (Y.-W.W.); (A.J.F.J.)
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington, DC 20057, USA
| | - Igor Shuryak
- Center for Radiological Research, Columbia University, New York, NY 10032, USA;
| | - Annabella Deziel
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, Washington, DC 20057, USA; (A.D.); (Y.-W.W.); (A.J.F.J.)
| | - Yi-Wen Wang
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, Washington, DC 20057, USA; (A.D.); (Y.-W.W.); (A.J.F.J.)
| | - Brooke L. Barnette
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX 77555, USA; (B.L.B.); (Y.Y.); (M.R.E.)
| | - Yongjia Yu
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX 77555, USA; (B.L.B.); (Y.Y.); (M.R.E.)
| | | | - Albert J. Fornace
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, Washington, DC 20057, USA; (A.D.); (Y.-W.W.); (A.J.F.J.)
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington, DC 20057, USA
| | - Mark R. Emmett
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX 77555, USA; (B.L.B.); (Y.Y.); (M.R.E.)
- Department of Radiation Oncology, University of Texas Medical Branch, Galveston, TX 77555, USA
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16
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Bonnefoy J, Ghislin S, Beyrend J, Coste F, Calcagno G, Lartaud I, Gauquelin-Koch G, Poussier S, Frippiat JP. Gravitational Experimental Platform for Animal Models, a New Platform at ESA's Terrestrial Facilities to Study the Effects of Micro- and Hypergravity on Aquatic and Rodent Animal Models. Int J Mol Sci 2021; 22:2961. [PMID: 33803957 PMCID: PMC7998548 DOI: 10.3390/ijms22062961] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/09/2021] [Accepted: 03/13/2021] [Indexed: 02/08/2023] Open
Abstract
Using rotors to expose animals to different levels of hypergravity is an efficient means of understanding how altered gravity affects physiological functions, interactions between physiological systems and animal development. Furthermore, rotors can be used to prepare space experiments, e.g., conducting hypergravity experiments to demonstrate the feasibility of a study before its implementation and to complement inflight experiments by comparing the effects of micro- and hypergravity. In this paper, we present a new platform called the Gravitational Experimental Platform for Animal Models (GEPAM), which has been part of European Space Agency (ESA)'s portfolio of ground-based facilities since 2020, to study the effects of altered gravity on aquatic animal models (amphibian embryos/tadpoles) and mice. This platform comprises rotors for hypergravity exposure (three aquatic rotors and one rodent rotor) and models to simulate microgravity (cages for mouse hindlimb unloading and a random positioning machine (RPM)). Four species of amphibians can be used at present. All murine strains can be used and are maintained in a specific pathogen-free area. This platform is surrounded by numerous facilities for sample preparation and analysis using state-of-the-art techniques. Finally, we illustrate how GEPAM can contribute to the understanding of molecular and cellular mechanisms and the identification of countermeasures.
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Affiliation(s)
- Julie Bonnefoy
- Stress, Immunity, Pathogens Laboratory, SIMPA, Université de Lorraine, F-54000 Nancy, France; (S.G.); (F.C.); (G.C.)
| | - Stéphanie Ghislin
- Stress, Immunity, Pathogens Laboratory, SIMPA, Université de Lorraine, F-54000 Nancy, France; (S.G.); (F.C.); (G.C.)
| | - Jérôme Beyrend
- Animalerie du Campus Biologie Santé, ACBS, Université de Lorraine, F-54000 Nancy, France; (J.B.); (I.L.); (S.P.)
| | - Florence Coste
- Stress, Immunity, Pathogens Laboratory, SIMPA, Université de Lorraine, F-54000 Nancy, France; (S.G.); (F.C.); (G.C.)
| | - Gaetano Calcagno
- Stress, Immunity, Pathogens Laboratory, SIMPA, Université de Lorraine, F-54000 Nancy, France; (S.G.); (F.C.); (G.C.)
| | - Isabelle Lartaud
- Animalerie du Campus Biologie Santé, ACBS, Université de Lorraine, F-54000 Nancy, France; (J.B.); (I.L.); (S.P.)
| | | | - Sylvain Poussier
- Animalerie du Campus Biologie Santé, ACBS, Université de Lorraine, F-54000 Nancy, France; (J.B.); (I.L.); (S.P.)
| | - Jean-Pol Frippiat
- Stress, Immunity, Pathogens Laboratory, SIMPA, Université de Lorraine, F-54000 Nancy, France; (S.G.); (F.C.); (G.C.)
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17
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Green MJ, Aylott JW, Williams P, Ghaemmaghami AM, Williams PM. Immunity in Space: Prokaryote Adaptations and Immune Response in Microgravity. Life (Basel) 2021; 11:life11020112. [PMID: 33540536 PMCID: PMC7912908 DOI: 10.3390/life11020112] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 01/25/2021] [Accepted: 01/28/2021] [Indexed: 12/16/2022] Open
Abstract
Immune dysfunction has long been reported by medical professionals regarding astronauts suffering from opportunistic infections both during their time in space and a short period afterwards once back on Earth. Various species of prokaryotes onboard these space missions or cultured in a microgravity analogue exhibit increased virulence, enhanced formation of biofilms, and in some cases develop specific resistance for specific antibiotics. This poses a substantial health hazard to the astronauts confined in constant proximity to any present bacterial pathogens on long space missions with a finite number of resources including antibiotics. Furthermore, some bacteria cultured in microgravity develop phenotypes not seen in Earth gravity conditions, providing novel insights into bacterial evolution and avenues for research. Immune dysfunction caused by exposure to microgravity may increase the chance of bacterial infection. Immune cell stimulation, toll-like receptors and pathogen-associated molecular patterns can all be altered in microgravity and affect immunological crosstalk and response. Production of interleukins and other cytokines can also be altered leading to immune dysfunction when responding to bacterial infection. Stem cell differentiation and immune cell activation and proliferation can also be impaired and altered by the microgravity environment once more adding to immune dysfunction in microgravity. This review elaborates on and contextualises these findings relating to how bacteria can adapt to microgravity and how the immune system subsequently responds to infection.
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Affiliation(s)
- Macauley J. Green
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK; (M.J.G.); (J.W.A.)
- School of Life Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (P.W.); (A.M.G.)
| | - Jonathan W. Aylott
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK; (M.J.G.); (J.W.A.)
| | - Paul Williams
- School of Life Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (P.W.); (A.M.G.)
| | - Amir M. Ghaemmaghami
- School of Life Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (P.W.); (A.M.G.)
| | - Philip M. Williams
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK; (M.J.G.); (J.W.A.)
- Correspondence:
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18
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Buchheim JI, Ghislin S, Ouzren N, Albuisson E, Vanet A, Matzel S, Ponomarev S, Rykova M, Choukér A, Frippiat JP. Plasticity of the human IgM repertoire in response to long-term spaceflight. FASEB J 2020; 34:16144-16162. [PMID: 33047384 DOI: 10.1096/fj.202001403rr] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 09/21/2020] [Accepted: 09/28/2020] [Indexed: 12/18/2022]
Abstract
Immune dysregulation is among the main adverse outcomes of spaceflight. Despite the crucial role of the antibody repertoire in host protection, the effects of spaceflight on the human antibody repertoire are unknown. Consequently, using high-throughput sequencing, we examined the IgM repertoire of five cosmonauts 25 days before launch, after 64 ± 11 and 129 ± 20 days spent on the International Space Station (ISS), and at 1, 7, and 30 days after landing. This is the first study of this kind in humans. Our data revealed that the IgM repertoire of the cosmonauts was different from that of control subjects (n = 4) prior to launch and that two out the five analyzed cosmonauts presented significant changes in their IgM repertoire during the mission. These modifications persisted up to 30 days after landing, likely affected the specificities of IgM binding sites, correlated with changes in the V(D)J recombination process responsible for creating antibody genes, and coincided with a higher stress response. These data confirm that the immune system of approximately half of the astronauts who spent 6 months on the ISS is sensitive to spaceflight conditions, and reveal individual responses indicating that personalized approaches should be implemented during future deep-space exploration missions that will be of unprecedented durations.
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Affiliation(s)
- Judith-Irina Buchheim
- Laboratory of Translational Research "Stress and Immunity", Department of Anesthesiology, Hospital of the Ludwig-Maximilians-University, Munich, Germany
| | - Stéphanie Ghislin
- Stress Immunity Pathogens Laboratory, EA 7300 Faculty of Medicine, Lorraine University, Vandoeuvre-lès-Nancy, France
| | - Nassima Ouzren
- Stress Immunity Pathogens Laboratory, EA 7300 Faculty of Medicine, Lorraine University, Vandoeuvre-lès-Nancy, France
| | - Eliane Albuisson
- DRCI, MPI Department, Methodology Unit, Data Management and Statistics UMDS, Nancy University Hospital, Vandoeuvre-lès-Nancy, France
| | - Anne Vanet
- University of Paris, Paris, France.,Genoinformatics Center, Jacques Monod Institute, UMR7592, CNRS, Paris, France
| | - Sandra Matzel
- Laboratory of Translational Research "Stress and Immunity", Department of Anesthesiology, Hospital of the Ludwig-Maximilians-University, Munich, Germany
| | - Sergey Ponomarev
- Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
| | - Marina Rykova
- Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
| | - Alexander Choukér
- Laboratory of Translational Research "Stress and Immunity", Department of Anesthesiology, Hospital of the Ludwig-Maximilians-University, Munich, Germany
| | - Jean-Pol Frippiat
- Stress Immunity Pathogens Laboratory, EA 7300 Faculty of Medicine, Lorraine University, Vandoeuvre-lès-Nancy, France
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19
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Turroni S, Magnani M, Kc P, Lesnik P, Vidal H, Heer M. Gut Microbiome and Space Travelers' Health: State of the Art and Possible Pro/Prebiotic Strategies for Long-Term Space Missions. Front Physiol 2020; 11:553929. [PMID: 33013480 PMCID: PMC7505921 DOI: 10.3389/fphys.2020.553929] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 08/14/2020] [Indexed: 12/20/2022] Open
Abstract
The upcoming exploration missions will imply a much longer duration than any of the missions flown so far. In these missions, physiological adaptation to the new environment leads to changes in different body systems, such as the cardiovascular and musculoskeletal systems, metabolic and neurobehavioral health and immune function. To keep space travelers healthy on their trip to Moon, Mars and beyond and their return to Earth, a variety of countermeasures need to be provided to maintain body functionality. From research on the International Space Station (ISS) we know today, that for instance prescribing an adequate training regime for each individual with the devices available in the respective spacecraft is still a challenge. Nutrient supply is not yet optimal and must be optimized in exploration missions. Food intake is intrinsically linked to changes in the gut microbiome composition. Most of the microbes that inhabit our body supply ecosystem benefit to the host-microbe system, including production of important resources, bioconversion of nutrients, and protection against pathogenic microbes. The gut microbiome has also the ability to signal the host, regulating the processes of energy storage and appetite perception, and influencing immune and neurobehavioral function. The composition and functionality of the microbiome most likely changes during spaceflight. Supporting a healthy microbiome by respective measures in space travelers might maintain their health during the mission but also support rehabilitation when being back on Earth. In this review we are summarizing the changes in the gut microbiome observed in spaceflight and analog models, focusing particularly on the effects on metabolism, the musculoskeletal and immune systems and neurobehavioral disorders. Since space travelers are healthy volunteers, we focus on the potential of countermeasures based on pre- and probiotics supplements.
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Affiliation(s)
- Silvia Turroni
- Unit of Microbial Ecology of Health, Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Marciane Magnani
- Laboratory of Microbial Processes in Foods, Department of Food Engineering, Federal University of Paraíba, João Pessoa, Brazil
| | - Pukar Kc
- Institut National de la Santé et de la Recherche Médicale (Inserm, UMR_S 1166), Hôpital de la Pitié-Salpêtrière, Sorbonne Université, Paris, France
| | - Philippe Lesnik
- Institut National de la Santé et de la Recherche Médicale (Inserm, UMR_S 1166), Hôpital de la Pitié-Salpêtrière, Sorbonne Université, Paris, France.,Institute of Cardiometabolism and Nutrition, Hôpital Pitié-Salpêtrière, Paris, France
| | - Hubert Vidal
- CarMeN Laboratory, INSERM, INRA, Université Claude Bernard Lyon 1, Pierre-Benite, France
| | - Martina Heer
- International University of Applied Sciences, Bad Reichenhall, Germany.,Institute of Nutritional and Food Sciences, University of Bonn, Bonn, Germany
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20
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Abstract
The impact of spaceflight on the immune system has been investigated extensively during spaceflight missions and in model experiments conducted on Earth. Data suggest that the spaceflight environment may affect the development of acquired immunity, and immune responses. Herein we summarize and discuss the influence of the spaceflight environment on acquired immunity. Bone marrow and the thymus, two major primary lymphoid organs, are evidently affected by gravitational change during spaceflight. Changes in the microenvironments of these organs impair lymphopoiesis, and thereby may indirectly impinge on acquired immunity. Acquired immune responses may also be disturbed by gravitational fluctuation, stressors, and space radiation both directly and in a stress hormone-dependent manner. These changes may affect acquired immune responses to pathogens, allergens, and tumors.
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21
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Liu AQ, Zhang LS, Chen J, Sui BD, Liu J, Zhai QM, Li YJ, Bai M, Chen K, Jin Y, Hu CH, Jin F. Mechanosensing by Gli1 + cells contributes to the orthodontic force-induced bone remodelling. Cell Prolif 2020; 53:e12810. [PMID: 32472648 PMCID: PMC7260067 DOI: 10.1111/cpr.12810] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 03/13/2020] [Accepted: 03/25/2020] [Indexed: 12/12/2022] Open
Abstract
Objectives Gli1+ cells have received extensive attention in tissue homeostasis and injury mobilization. The aim of this study was to investigate whether Gli1+ cells respond to force and contribute to bone remodelling. Materials and methods We established orthodontic tooth movement (OTM) model to assess the bone response for mechanical force. The transgenic mice were utilized to label and inhibit Gli1+ cells, respectively. Additionally, mice that conditional ablate Yes‐associated protein (Yap) in Gli1+ cells were applied in the present study. The tooth movement and bone remodelling were analysed. Results We first found Gli1+ cells expressed in periodontal ligament (PDL). They were proliferated and differentiated into osteoblastic cells under tensile force. Next, both pharmacological and genetic Gli1 inhibition models were utilized to confirm that inhibition of Gli1+ cells led to arrest of bone remodelling. Furthermore, immunofluorescence staining identified classical mechanotransduction factor Yap expressed in Gli1+ cells and decreased after suppression of Gli1+ cells. Additionally, conditional ablation of Yap gene in Gli1+ cells inhibited the bone remodelling as well, suggesting Gli1+ cells are force‐responsive cells. Conclusions Our findings highlighted that Gli1+ cells in PDL directly respond to orthodontic force and further mediate bone remodelling, thus providing novel functional evidence in the mechanism of bone remodelling and first uncovering the mechanical responsive property of Gli1+ cells.
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Affiliation(s)
- An-Qi Liu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi'an, China.,Xi'an Institute of Tissue Engineering and Regenerative Medicine, Xi'an, China.,Department of Orthodontic Dentistry, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Li-Shu Zhang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi'an, China.,Xi'an Institute of Tissue Engineering and Regenerative Medicine, Xi'an, China.,Department of Orthodontic Dentistry, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Ji Chen
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi'an, China.,Xi'an Institute of Tissue Engineering and Regenerative Medicine, Xi'an, China.,Department of Oral Implantology, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Bing-Dong Sui
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi'an, China.,Xi'an Institute of Tissue Engineering and Regenerative Medicine, Xi'an, China
| | - Jin Liu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi'an, China.,Xi'an Institute of Tissue Engineering and Regenerative Medicine, Xi'an, China
| | - Qi-Ming Zhai
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi'an, China.,Xi'an Institute of Tissue Engineering and Regenerative Medicine, Xi'an, China.,Department of Orthodontic Dentistry, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Yan-Jiao Li
- Department of Orthodontic Dentistry, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Meng Bai
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi'an, China.,Xi'an Institute of Tissue Engineering and Regenerative Medicine, Xi'an, China
| | - Kai Chen
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi'an, China.,Xi'an Institute of Tissue Engineering and Regenerative Medicine, Xi'an, China
| | - Yan Jin
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi'an, China.,Xi'an Institute of Tissue Engineering and Regenerative Medicine, Xi'an, China
| | - Cheng-Hu Hu
- Xi'an Institute of Tissue Engineering and Regenerative Medicine, Xi'an, China
| | - Fang Jin
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi'an, China.,Department of Orthodontic Dentistry, School of Stomatology, The Fourth Military Medical University, Xi'an, China
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22
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Rettig TA, Nishiyama NC, Pecaut MJ, Chapes SK. Effects of skeletal unloading on the bone marrow antibody repertoire of tetanus toxoid and/or CpG treated C57BL/6J mice. LIFE SCIENCES IN SPACE RESEARCH 2019; 22:16-28. [PMID: 31421845 PMCID: PMC6703179 DOI: 10.1016/j.lssr.2019.06.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 06/04/2019] [Accepted: 06/13/2019] [Indexed: 06/10/2023]
Abstract
Spaceflight is known to impact the immune system in multiple ways. However, its effect on the antibody repertoire, especially in response to challenge, has not been well characterized. The development of the repertoire has multiple steps that could be affected by spaceflight, including V-(D-)J-gene segment rearrangement and the selection of complementarity determining regions (CDRs); specifically, CDR3, responsible for much of the diversity in the repertoire. We used skeletal unloading with the antiorthostatic suspension (AOS) model to simulate some of the physiological effects associated with spaceflight. Animals ± AOS were challenged with tetanus toxoid (TT) and/or CpG, an adjuvant. Two weeks after challenge, bone marrow was collected and sequenced using the Illumina MiSeq 2 × 300 platform. The resulting antibody repertoire was characterized, including V-, D- (heavy only), and J-gene segment usage, constant region usage, CDR3 length, and V(D)J combinations. We detected changes in gene-segment usage in response to AOS, TT, and CpG treatment in both the heavy and light chains. Additionally, changes were seen in the class-switched VH-gene repertoire. Alterations were also detected in V/J pairing for both the heavy and light chains, and changes in CDR3 length. We also detected lower levels of CDR3 AA overlap than detected in the splenic repertoire. These results demonstrate that AOS, TT, and CpG alter the bone marrow antibody repertoire however, it is still unclear from the data whether there is a loss of host antigen-specific responsiveness because of the change in gene use.
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Affiliation(s)
- Trisha A Rettig
- Division of Biology, Kansas State University, 1711 Claflin Rd, Manhattan, KS, USA; Department of Basic Sciences, Division of Biomedical Engineering Sciences, Loma Linda University, 11175 Campus St, Chan Shun Pavilion, Loma Linda, CA, USA
| | - Nina C Nishiyama
- Department of Basic Sciences, Division of Biomedical Engineering Sciences, Loma Linda University, 11175 Campus St, Chan Shun Pavilion, Loma Linda, CA, USA
| | - Michael J Pecaut
- Department of Basic Sciences, Division of Biomedical Engineering Sciences, Loma Linda University, 11175 Campus St, Chan Shun Pavilion, Loma Linda, CA, USA
| | - Stephen K Chapes
- Division of Biology, Kansas State University, 1711 Claflin Rd, Manhattan, KS, USA.
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23
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Down-regulation of GATA1-dependent erythrocyte-related genes in the spleens of mice exposed to a space travel. Sci Rep 2019; 9:7654. [PMID: 31114014 PMCID: PMC6529412 DOI: 10.1038/s41598-019-44067-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 04/30/2019] [Indexed: 02/02/2023] Open
Abstract
Secondary lymphoid organs are critical for regulating acquired immune responses. The aim of this study was to characterize the impact of spaceflight on secondary lymphoid organs at the molecular level. We analysed the spleens and lymph nodes from mice flown aboard the International Space Station (ISS) in orbit for 35 days, as part of a Japan Aerospace Exploration Agency mission. During flight, half of the mice were exposed to 1 g by centrifuging in the ISS, to provide information regarding the effect of microgravity and 1 g exposure during spaceflight. Whole-transcript cDNA sequencing (RNA-Seq) analysis of the spleen suggested that erythrocyte-related genes regulated by the transcription factor GATA1 were significantly down-regulated in ISS-flown vs. ground control mice. GATA1 and Tal1 (regulators of erythropoiesis) mRNA expression was consistently reduced by approximately half. These reductions were not completely alleviated by 1 g exposure in the ISS, suggesting that the combined effect of space environments aside from microgravity could down-regulate gene expression in the spleen. Additionally, plasma immunoglobulin concentrations were slightly altered in ISS-flown mice. Overall, our data suggest that spaceflight might disturb the homeostatic gene expression of the spleen through a combination of microgravity and other environmental changes.
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24
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Guéguinou N, Jeandel J, Kaminski S, Baatout S, Ghislin S, Frippiat JP. Modulation of Iberian Ribbed Newt Complement Component C3 by Stressors Similar to those Encountered during a Stay Onboard the International Space Station. Int J Mol Sci 2019; 20:ijms20071579. [PMID: 30934839 PMCID: PMC6479312 DOI: 10.3390/ijms20071579] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 03/26/2019] [Accepted: 03/27/2019] [Indexed: 01/08/2023] Open
Abstract
The complement system plays an important role in inflammation, innate and acquired immunity, as well as homeostasis. Despite these functions, the effects of spaceflight conditions on the complement system have not yet been intensively studied. Consequently, we investigated the effects of five types of chronic stressors, similar to those encountered during a stay onboard the International Space Station, on C3 expression in larvae of the urodele amphibian Pleurodeles waltl. We focused on C3 because it is a critical component of this system. These studies were completed by the analysis of adult mice exposed to two models of inflight stressors. Our data show that simulating space radiation, or combining a modification of the circadian rhythm with simulated microgravity, affects the amount of C3 proteins. These results suggest that C3 expression could be modified under real spaceflight conditions, potentially increasing the risk of inflammation and associated tissue damage.
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Affiliation(s)
- Nathan Guéguinou
- Stress Immunity Pathogens Laboratory, EA 7300, Faculty of Medicine, Université de Lorraine, 9 avenue de la Foret de Haye, F-54500 Vandœuvre-lès-Nancy, France.
| | - Jérémy Jeandel
- Stress Immunity Pathogens Laboratory, EA 7300, Faculty of Medicine, Université de Lorraine, 9 avenue de la Foret de Haye, F-54500 Vandœuvre-lès-Nancy, France.
| | - Sandra Kaminski
- Stress Immunity Pathogens Laboratory, EA 7300, Faculty of Medicine, Université de Lorraine, 9 avenue de la Foret de Haye, F-54500 Vandœuvre-lès-Nancy, France.
| | - Sarah Baatout
- Radiobiology Unit, SCK·CEN, Boeretang 200, B-2400 Mol, Belgium.
| | - Stéphanie Ghislin
- Stress Immunity Pathogens Laboratory, EA 7300, Faculty of Medicine, Université de Lorraine, 9 avenue de la Foret de Haye, F-54500 Vandœuvre-lès-Nancy, France.
| | - Jean-Pol Frippiat
- Stress Immunity Pathogens Laboratory, EA 7300, Faculty of Medicine, Université de Lorraine, 9 avenue de la Foret de Haye, F-54500 Vandœuvre-lès-Nancy, France.
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25
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Rettig TA, Bye BA, Nishiyama NC, Hlavacek S, Ward C, Pecaut MJ, Chapes SK. Effects of skeletal unloading on the antibody repertoire of tetanus toxoid and/or CpG treated C57BL/6J mice. PLoS One 2019; 14:e0210284. [PMID: 30653556 PMCID: PMC6336310 DOI: 10.1371/journal.pone.0210284] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 12/19/2018] [Indexed: 01/26/2023] Open
Abstract
Spaceflight affects the immune system, but the effects on the antibody repertoire, responsible for humoral immunity, has not been well explored. In particular, the complex gene assembly and expression process; including mutations, might make this process vulnerable. Complementarity determining region 3 (CDR3), composed of parts of the V-(D-)J-gene segments, is very important for antigen binding and can be used as an important measure of variability. Skeletal unloading, and the physiological effects of it, parallel many impacts of space flight. Therefore, we explored the impact of skeletal unloading using the antiorthostatic suspension (AOS) model. Animals were experimentally challenged with tetanus toxoid (TT) and/or the adjuvant CpG. Blood was analyzed for anti-TT antibody and corticosterone concentrations. Whole spleen tissue was prepared for repertoire characterization. AOS animals showed higher levels of corticosterone levels, but AOS alone did not affect anti-TT serum antibody levels. Administration of CpG significantly increased the circulating anti-TT antibody concentrations. AOS did alter constant gene usage resulting in higher levels of IgM and lower levels of IgG. CpG also altered constant gene region usage increasing usage of IgA. Significant changes could be detected in multiple V-, D-, and J-gene segments in both the heavy and light chains in response to AOS, TT, and CpG treatments. Analysis of class-switched only transcripts revealed a different pattern of V-gene segment usage than detected in the whole repertoire and also showed significant alterations in gene segment usage after challenge. Alterations in V/J pairing were also detected in response to challenge. CDR3 amino acid sequence overlaps were similar among treatment groups, though the addition of CpG lowered overlap in the heavy chain. We isolated 3,045 whole repertoire and 98 potentially TT-specific CDR3 sequences for the heavy chain and 569 for the light chain. Our results demonstrate that AOS alters the repertoire response to challenge with TT and/or CpG.
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Affiliation(s)
- Trisha A. Rettig
- Division of Biology, Kansas State University, Manhattan, Kansas, United States of America
| | - Bailey A. Bye
- Division of Biology, Kansas State University, Manhattan, Kansas, United States of America
| | - Nina C. Nishiyama
- Division of Biomedical Engineering Sciences, Loma Linda University, Loma Linda, California, United States of America
| | - Savannah Hlavacek
- Division of Biology, Kansas State University, Manhattan, Kansas, United States of America
| | - Claire Ward
- Division of Biology, Kansas State University, Manhattan, Kansas, United States of America
| | - Michael J. Pecaut
- Division of Biomedical Engineering Sciences, Loma Linda University, Loma Linda, California, United States of America
| | - Stephen K. Chapes
- Division of Biology, Kansas State University, Manhattan, Kansas, United States of America
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