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Gan X, Zhao J, Li S, Kan G, Zhang Y, Wang B, Zhang P, Ma X, Tian H, Liao M, Ju D, Xu S, Chen X, Guo J. Simulated space environmental factors of weightlessness, noise and low atmospheric pressure differentially affect the diurnal rhythm and the gut microbiome. LIFE SCIENCES IN SPACE RESEARCH 2024; 40:115-125. [PMID: 38245336 DOI: 10.1016/j.lssr.2023.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/21/2023] [Accepted: 09/19/2023] [Indexed: 01/22/2024]
Abstract
The circadian clock extensively regulates physiology and behavior. In space, astronauts encounter many environmental factors that are dramatically different from those on Earth; however, the effects of these factors on circadian rhythms and the mechanisms remain largely unknown. The present study aimed to investigate the changes in the mouse diurnal rhythm and gut microbiome under simulated space capsule conditions, including microgravity, noise and low atmospheric pressure (LAP). Noise and LAP were loaded in the capsule while the conditions in the animal room remained constant. The mice in the capsule showed disturbed locomotor rhythms and faster adaptation to a 6-h phase advance. RNA sequencing of hypothalamus samples containing the suprachiasmatic nucleus (SCN) revealed that microgravity simulated by hind limb unloading (HU) and exposure to noise and LAP led to decreases in the quantities of differentially expressed genes (DEGs), including circadian clock genes. Changes in the rhythmicity of genes implicated in pathways of cardiovascular deconditioning and more concentrated phases were found under HU or noise and LAP. Furthermore, 16S rRNA sequencing revealed dysbiosis in the gut microbiome, and noise and LAP may repress the temporal discrepancy in the microbiome community structure induced by microgravity. Changes in diurnal oscillations were observed in a number of gut bacteria with critical physiological consequences on metabolism and immunodefense. We also found that the superimposition of noise and LAP may repress normal changes in global gene expression and adaptation in the gut microbiome. Our data demonstrate that in addition to microgravity, exposure to noise and LAP affect the robustness of circadian rhythms and the community structure of the gut microbiome, and these factors may interfere with each other in their adaptation to respective conditions. These findings are important for furthering our understanding of the alterations in circadian rhythms in the complex environment of space.
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Affiliation(s)
- Xihui Gan
- Ministry of Education (MOE) Key Laboratory of Gene Function and Regulation, School of Life Sciences, State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, China
| | - Jianwei Zhao
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Silin Li
- Ministry of Education (MOE) Key Laboratory of Gene Function and Regulation, School of Life Sciences, State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, China
| | - Guanghan Kan
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Yin Zhang
- Ministry of Education (MOE) Key Laboratory of Gene Function and Regulation, School of Life Sciences, State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, China
| | - Bo Wang
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Peng Zhang
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Xiaohong Ma
- Ministry of Education (MOE) Key Laboratory of Gene Function and Regulation, School of Life Sciences, State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, China
| | - Hongni Tian
- National Institute of Biological Sciences, Beijing, China
| | - Meimei Liao
- National Institute of Biological Sciences, Beijing, China
| | - Dapeng Ju
- National Institute of Biological Sciences, Beijing, China
| | - Shuihong Xu
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Xiaoping Chen
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China; National Key Laboratory of Human Factors Engineering, China Astronaut Research and Training Center, Beijing, China.
| | - Jinhu Guo
- Ministry of Education (MOE) Key Laboratory of Gene Function and Regulation, School of Life Sciences, State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, China.
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Zhan Y, Li L, Guo C, Zhang Y, Zhao L, Tao Z, Zhang H, Chen S. MicroRNA-141-3p reduces pulmonary hypoxia/reoxygenation injury through suppression of Beclin-1-dependent autophagy. Aging (Albany NY) 2024; 16:1352-1373. [PMID: 38261732 PMCID: PMC10866419 DOI: 10.18632/aging.205430] [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: 05/26/2023] [Accepted: 11/06/2023] [Indexed: 01/25/2024]
Abstract
Alterations in autophagy are involved in pulmonary hypoxia/reoxygenation (H/R)-induced injury. Here, we intended to explain the function of microRNA-141-3p (miR-141-3p) in regulating autophagy under the H/R condition. Rat pulmonary microvascular endothelial cells (PMVECs) were applied for H/R cell model establishment, followed by tracing of autophagy formation. SIRT1 plays a critical role in controlling the lifespan of yeast, flies, and mice. Interaction between SIRT1 and Beclin-1, an indicator protein for autophagy, and between miR-141-3p and SIRT1 was assayed with their roles in PMVEC injury. Autophagy of PMVECs was activated after hypoxia treatment and further activated after H/R treatment. The binding of miR-141-3p and SIRT1 was verified. In H/R-treated PMVECs, the binding of miR-141-3p and SIRT1 was reduced. Furthermore, SIRT1 acted as a deacetylase to stabilize the Beclin-1 protein, promoting autophagy and PMVEC injury. H/R rat models were established, and in vivo, experiments further confirmed that miR-141-3p regulated autophagy and lung injury in H/R rats through SIRT1/Beclin-1 axis. The current study highlighted that reduced miR-141-3p in H/R-treated PMVECs promoted deacetylation of Beclin-1 by SIRT1, thus causing PMVEC injury.
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Affiliation(s)
- Yanping Zhan
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, P.R. China
| | - Lei Li
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, P.R. China
| | - Chen Guo
- Jiangxi Maternal and Child Health Hospital, Nanchang 330006, P.R. China
| | - Yang Zhang
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, P.R. China
| | - Lili Zhao
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, P.R. China
| | - Zhe Tao
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, P.R. China
| | - Hua Zhang
- Nanchang University, Nanchang 330006, P.R. China
| | - Shibiao Chen
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, P.R. China
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Liang R, Wang L, Yang Q, Xu Q, Sun S, Zhou H, Zhao M, Gao J, Zheng C, Yang J, Ming D. Time-course adaptive changes in hippocampal transcriptome and synaptic function induced by simulated microgravity associated with cognition. Front Cell Neurosci 2023; 17:1275771. [PMID: 37868195 PMCID: PMC10585108 DOI: 10.3389/fncel.2023.1275771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 09/18/2023] [Indexed: 10/24/2023] Open
Abstract
Introduction The investigation of cognitive function in microgravity, both short-term and long-term, remains largely descriptive. And the underlying mechanisms of the changes over time remain unclear. Methods Behavioral tests, electrophysiological recording, and RNA sequencing were used to observe differences in behavior, synaptic plasticity, and gene expression. Results Initially, we measured the performance of spatial cognition exposed to long-term simulated microgravity (SM). Both working memory and advanced cognitive abilities were enhanced. Somewhat surprisingly, the synaptic plasticity of the hippocampal CA3-CA1 synapse was impaired. To gain insight into the mechanism of changing regularity over time, transcriptome sequencing in the hippocampus was performed. The analysis identified 20 differentially expressed genes (DEGs) in the hippocampus after short-term modeling, 19 of which were up-regulated. Gene Ontology (GO) analysis showed that these up-regulated genes were mainly enriched in synaptic-related processes, such as Stxbp5l and Epha6. This might be related to the enhancement of working memory performance under short-term SM exposure. Under exposure to long-term SM, 7 DEGs were identified in the hippocampus, all of which were up-regulated and related to oxidative stress and metabolism, such as Depp1 and Lrg1. Compensatory effects occurred with increased modeling time. Discussion To sum up, our current research indicates that the cognitive function under SM exposure is consistently maintained or potentially even being enhanced over both short and long durations. The underlying mechanisms are intricate and potentially linked to the differential expression of hippocampal-associated genes and alterations in synaptic function, with these effects being time-dependent. The present study will lay the experimental and theoretical foundation of the multi-level mechanism of cognitive function under space flight.
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Affiliation(s)
- Rong Liang
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Ling Wang
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
- Tianjin Key Laboratory of Brain Science and Neuroengineering, Tianjin, China
- Haihe Laboratory of Brain-Computer Interaction and Human-Machine Integration, Tianjin, China
| | - Qing Yang
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Qing Xu
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Shufan Sun
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Haichen Zhou
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Meiling Zhao
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Jing Gao
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Chenguang Zheng
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
- Tianjin Key Laboratory of Brain Science and Neuroengineering, Tianjin, China
- Haihe Laboratory of Brain-Computer Interaction and Human-Machine Integration, Tianjin, China
| | - Jiajia Yang
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
- Tianjin Key Laboratory of Brain Science and Neuroengineering, Tianjin, China
- Haihe Laboratory of Brain-Computer Interaction and Human-Machine Integration, Tianjin, China
| | - Dong Ming
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
- Tianjin Key Laboratory of Brain Science and Neuroengineering, Tianjin, China
- Haihe Laboratory of Brain-Computer Interaction and Human-Machine Integration, Tianjin, China
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Liu X, Yan Z, Cai J, Wang D, Yang Y, Ding Y, Shao X, Hao X, Luo E, Guo XE, Luo P, Shen L, Jing D. Glucose- and glutamine-dependent bioenergetics sensitize bone mechanoresponse after unloading by modulating osteocyte calcium dynamics. J Clin Invest 2023; 133:164508. [PMID: 36512405 PMCID: PMC9888392 DOI: 10.1172/jci164508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 12/08/2022] [Indexed: 12/15/2022] Open
Abstract
Disuse osteoporosis is a metabolic bone disease resulting from skeletal unloading (e.g., during extended bed rest, limb immobilization, and spaceflight), and the slow and insufficient bone recovery during reambulation remains an unresolved medical challenge. Here, we demonstrated that loading-induced increase in bone architecture/strength was suppressed in skeletons previously exposed to unloading. This reduction in bone mechanosensitivity was directly associated with attenuated osteocytic Ca2+ oscillatory dynamics. The unloading-induced compromised osteocytic Ca2+ response to reloading resulted from the HIF-1α/PDK1 axis-mediated increase in glycolysis, and a subsequent reduction in ATP synthesis. HIF-1α also transcriptionally induced substantial glutaminase 2 expression and thereby glutamine addiction in osteocytes. Inhibition of glycolysis by blockade of PDK1 or glutamine supplementation restored the mechanosensitivity in those skeletons with previous unloading by fueling the tricarboxylic acid cycle and rescuing subsequent Ca2+ oscillations in osteocytes. Thus, we provide mechanistic insight into disuse-induced deterioration of bone mechanosensitivity and a promising therapeutic approach to accelerate bone recovery after long-duration disuse.
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Affiliation(s)
- Xiyu Liu
- Department of Biomedical Engineering, Fourth Military Medical University, Xi’an, China
| | - Zedong Yan
- Department of Biomedical Engineering, Fourth Military Medical University, Xi’an, China
| | - Jing Cai
- College of Basic Medicine, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Dan Wang
- Department of Biomedical Engineering, Fourth Military Medical University, Xi’an, China
| | - Yongqing Yang
- Department of Biomedical Engineering, Fourth Military Medical University, Xi’an, China
| | - Yuanjun Ding
- Department of Biomedical Engineering, Fourth Military Medical University, Xi’an, China
| | - Xi Shao
- Department of Biomedical Engineering, Fourth Military Medical University, Xi’an, China
| | - Xiaoxia Hao
- Department of Biomedical Engineering, Fourth Military Medical University, Xi’an, China
| | - Erping Luo
- Department of Biomedical Engineering, Fourth Military Medical University, Xi’an, China
| | - X. Edward Guo
- Bone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, New York, USA
| | - Peng Luo
- Department of Neurosurgery, Xijing Hospital
| | - Liangliang Shen
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology
| | - Da Jing
- Department of Biomedical Engineering, Fourth Military Medical University, Xi’an, China.,Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, and,Shaanxi Provincial Key Laboratory of Bioelectromagnetic Detection and Intelligent Perception, Fourth Military Medical University, Xi’an, China
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5
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Cienfuegos-Pecina E, Moreno-Peña DP, Torres-González L, Rodríguez-Rodríguez DR, Garza-Villarreal D, Mendoza-Hernández OH, Flores-Cantú RA, Samaniego Sáenz BA, Alarcon-Galvan G, Muñoz-Espinosa LE, Ibarra-Rivera TR, Saucedo AL, Cordero-Pérez P. Treatment with sodium ( S)-2-hydroxyglutarate prevents liver injury in an ischemia-reperfusion model in female Wistar rats. PeerJ 2021; 9:e12426. [PMID: 34824916 PMCID: PMC8592047 DOI: 10.7717/peerj.12426] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 10/11/2021] [Indexed: 12/24/2022] Open
Abstract
Background Ischemia-reperfusion (IR) injury is one of the leading causes of early graft dysfunction in liver transplantation. Techniques such as ischemic preconditioning protect the graft through the activation of the hypoxia-inducible factors (HIF), which are downregulated by the EGLN family of prolyl-4-hydroxylases, a potential biological target for the development of strategies based on pharmacological preconditioning. For that reason, this study aims to evaluate the effect of the EGLN inhibitor sodium (S)-2-hydroxyglutarate [(S)-2HG] on liver IR injury in Wistar rats. Methods Twenty-eight female Wistar rats were divided into the following groups: sham (SH, n = 7), non-toxicity (HGTox, n = 7, 25 mg/kg of (S)-2HG, twice per day for two days), IR (n = 7, total liver ischemia: 20 minutes, reperfusion: 60 minutes), and (S)-2HG+IR (HGIR, n = 7, 25 mg/kg of (S)-2HG, twice per day for two days, total liver ischemia as the IR group). Serum ALT, AST, LDH, ALP, glucose, and total bilirubin were assessed. The concentrations of IL-1β, IL-6, TNF, malondialdehyde, superoxide dismutase, and glutathione peroxidase were measured in liver tissue, as well as the expression of Hmox1, Vegfa, and Pdk1, determined by RT-qPCR. Sections of liver tissue were evaluated histologically, assessing the severity of necrosis, sinusoidal congestion, and cytoplasmatic vacuolization. Results The administration of (S)-2HG did not cause any alteration in the assessed biochemical markers compared to SH. Preconditioning with (S)-2HG significantly ameliorated IR injury in the HGIR group, decreasing the serum activities of ALT, AST, and LDH, and the tissue concentrations of IL-1β and IL-6 compared to the IR group. IR injury decreased serum glucose compared to SH. There were no differences in the other biomarkers assessed. The treatment with (S)-2HG tended to decrease the severity of hepatocyte necrosis and sinusoidal congestion compared to the IR group. The administration of (S)-2HG did not affect the expression of Hmox1 but decreased the expression of both Vegfa and Pdk1 compared to the SH group, suggesting that the HIF-1 pathway is not involved in its mechanism of hepatoprotection. In conclusion, (S)-2HG showed a hepatoprotective effect, decreasing the levels of liver injury and inflammation biomarkers, without evidence of the involvement of the HIF-1 pathway. No hepatotoxic effect was observed at the tested dose.
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Affiliation(s)
- Eduardo Cienfuegos-Pecina
- Universidad Autónoma de Nuevo León. Liver Unit, Department of Internal Medicine, University Hospital "Dr. José E. González", Monterrey, Nuevo León, Mexico.,Universidad Autónoma de Nuevo León. Blood Bank, Department of Clinical Pathology, University Hospital "Dr. José E. González", Monterrey, Nuevo León, Mexico
| | - Diana P Moreno-Peña
- Universidad Autónoma de Nuevo León. Liver Unit, Department of Internal Medicine, University Hospital "Dr. José E. González", Monterrey, Nuevo León, Mexico
| | - Liliana Torres-González
- Universidad Autónoma de Nuevo León. Liver Unit, Department of Internal Medicine, University Hospital "Dr. José E. González", Monterrey, Nuevo León, Mexico
| | - Diana Raquel Rodríguez-Rodríguez
- Universidad Autónoma de Nuevo León. Liver Unit, Department of Internal Medicine, University Hospital "Dr. José E. González", Monterrey, Nuevo León, Mexico
| | - Diana Garza-Villarreal
- Universidad Autónoma de Nuevo León. Liver Unit, Department of Internal Medicine, University Hospital "Dr. José E. González", Monterrey, Nuevo León, Mexico
| | - Oscar H Mendoza-Hernández
- Universidad Autónoma de Nuevo León. Liver Unit, Department of Internal Medicine, University Hospital "Dr. José E. González", Monterrey, Nuevo León, Mexico
| | - Raul Alejandro Flores-Cantú
- Universidad Autónoma de Nuevo León. Liver Unit, Department of Internal Medicine, University Hospital "Dr. José E. González", Monterrey, Nuevo León, Mexico
| | - Brenda Alejandra Samaniego Sáenz
- Universidad Autónoma de Nuevo León. Liver Unit, Department of Internal Medicine, University Hospital "Dr. José E. González", Monterrey, Nuevo León, Mexico
| | - Gabriela Alarcon-Galvan
- Universidad de Monterrey, Basic Science Department, School of Medicine, Monterrey, Nuevo León, Mexico
| | - Linda E Muñoz-Espinosa
- Universidad Autónoma de Nuevo León. Liver Unit, Department of Internal Medicine, University Hospital "Dr. José E. González", Monterrey, Nuevo León, Mexico
| | - Tannya R Ibarra-Rivera
- Universidad Autónoma de Nuevo León. Department of Analytical Chemistry, School of Medicine, Monterrey, Nuevo León, Mexico
| | - Alma L Saucedo
- Universidad Autónoma de Nuevo León. Department of Analytical Chemistry, School of Medicine, Monterrey, Nuevo León, Mexico
| | - Paula Cordero-Pérez
- Universidad Autónoma de Nuevo León. Liver Unit, Department of Internal Medicine, University Hospital "Dr. José E. González", Monterrey, Nuevo León, Mexico
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Kong L, Wang Y, Wang H, Pan Q, Zuo R, Bai S, Zhang X, Lee WY, Kang Q, Li G. Conditioned media from endothelial progenitor cells cultured in simulated microgravity promote angiogenesis and bone fracture healing. Stem Cell Res Ther 2021; 12:47. [PMID: 33419467 PMCID: PMC7792074 DOI: 10.1186/s13287-020-02074-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 12/06/2020] [Indexed: 12/15/2022] Open
Abstract
Background Paracrine signaling from endothelial progenitor cells (EPCs) is beneficial for angiogenesis and thus promotes tissue regeneration. Microgravity (MG) environment is found to facilitate the functional potentials of various stem or progenitor cells. The present study aimed to elucidate the effects of MG on pro-angiogenic properties and fracture repair capacities of conditioned media (CM) from EPCs. Methods Human peripheral blood-derived EPCs were cultured under MG or normal gravity (NG) followed by analysis for angiogenic gene expression. Furthermore, the serum-free CM under MG (MG-CM) or NG (NG-CM) were collected, and their pro-angiogenic properties were examined in human umbilical vein endothelial cells (HUVECs). In order to investigate the effects of MG-CM on fracture healing, they were injected into the fracture gaps of rat models, and radiography, histology, and mechanical test were performed to evaluate neovascularization and fracture healing outcomes. Results MG upregulated the expression of hypoxia-induced factor-1α (HIF-1α) and endothelial nitric oxide synthase (eNOS) and promoted NO release. Comparing to NG-CM, MG-CM significantly facilitated the proliferation, migration, and angiogenesis of HUVECs through NO-induced activation of FAK/Erk1/2-MAPK signaling pathway. In addition, MG-CM were verified to improve angiogenic activities in fracture area in a rat tibial fracture model, accelerate fracture healing, and well restore the biomechanical properties of fracture bone superior to NG-CM. Conclusion These findings provided insight into the use of MG bioreactor to enhance the angiogenic properties of EPCs’ paracrine signals via HIF-1α/eNOS/NO axis, and the administration of MG-CM favored bone fracture repair. Graphical abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13287-020-02074-y.
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Affiliation(s)
- Lingchi Kong
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Yishan Rd. 600, Shanghai, 200233, People's Republic of China.,Department of Orthopaedics & Traumatology, Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR PRC
| | - Yan Wang
- Department of Orthopaedics & Traumatology, Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR PRC
| | - Haixing Wang
- Department of Orthopaedics & Traumatology, Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR PRC
| | - Qi Pan
- Department of Orthopaedics & Traumatology, Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR PRC
| | - Rongtai Zuo
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Yishan Rd. 600, Shanghai, 200233, People's Republic of China
| | - Shanshan Bai
- Department of Orthopaedics & Traumatology, Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR PRC
| | - Xiaoting Zhang
- Department of Orthopaedics & Traumatology, Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR PRC
| | - Wayne Yukwai Lee
- Department of Orthopaedics & Traumatology, Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR PRC
| | - Qinglin Kang
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Yishan Rd. 600, Shanghai, 200233, People's Republic of China.
| | - Gang Li
- Department of Orthopaedics & Traumatology, Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR PRC. .,The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, The Chinese University of Hong Kong Shenzhen Research Institute, Shenzhen, People's Republic of China. .,Key Laboratory for Regenerative Medicine, Ministry of Education, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR PRC.
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Beheshti A, McDonald JT, Miller J, Grabham P, Costes SV. GeneLab Database Analyses Suggest Long-Term Impact of Space Radiation on the Cardiovascular System by the Activation of FYN Through Reactive Oxygen Species. Int J Mol Sci 2019; 20:ijms20030661. [PMID: 30717456 PMCID: PMC6387434 DOI: 10.3390/ijms20030661] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 01/29/2019] [Accepted: 01/30/2019] [Indexed: 12/17/2022] Open
Abstract
Space radiation has recently been considered a risk factor for astronauts’ cardiac health. As an example, for the case of how to query and identify datasets within NASA’s GeneLab database and demonstrate the database utility, we used an unbiased systems biology method for identifying key genes/drivers for the contribution of space radiation on the cardiovascular system. This knowledge can contribute to designing appropriate experiments targeting these specific pathways. Microarray data from cardiomyocytes of male C57BL/6 mice followed-up for 28 days after exposure to 900 mGy of 1 GeV proton or 150 mGy of 1 GeV/n 56Fe were compared to human endothelial cells (HUVECs) cultured for 7 days on the International Space Station (ISS). We observed common molecular pathways between simulated space radiation and HUVECs flown on the ISS. The analysis suggests FYN is the central driver/hub for the cardiovascular response to space radiation: the known oxidative stress induced immediately following radiation would only be transient and would upregulate FYN, which in turn would reduce reactive oxygen species (ROS) levels, protecting the cardiovascular system. The transcriptomic signature of exposure to protons was also much closer to the spaceflight signature than 56Fe’s signature. To our knowledge, this is the first time GeneLab datasets were utilized to provide potential biological indications that the majority of ions on the ISS are protons, clearly illustrating the power of omics analysis. More generally, this work also demonstrates how to combine animal radiation studies done on the ground and spaceflight studies to evaluate human risk in space.
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Affiliation(s)
- Afshin Beheshti
- WYLE Labs, NASA Ames Research Center, Moffett Field CA 94035, USA.
| | - J Tyson McDonald
- Department of Physics, Hampton University, Hampton, VA 23668 USA.
| | - Jack Miller
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
| | - Peter Grabham
- Center for Radiological Research, Columbia University, New York, NY 10032, USA.
| | - Sylvain V Costes
- NASA Ames Research Center, Space Biosciences Division, Moffett Field, CA 94035, USA.
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Expression of Hypoxia-Inducible Factor 1α (HIF-1α) and Genes of Related Pathways in Altered Gravity. Int J Mol Sci 2019; 20:ijms20020436. [PMID: 30669540 PMCID: PMC6358763 DOI: 10.3390/ijms20020436] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 01/15/2019] [Accepted: 01/17/2019] [Indexed: 12/28/2022] Open
Abstract
Immune system deterioration in space represents a major risk, which has to be mitigated for exploration-class missions into the solar system. Altered gravitational forces have been shown to regulate adaptation processes in cells of the immune system, which are important for appropriate risk management, monitoring and development of countermeasures. T lymphocytes and cells of the monocyte-macrophage system are highly migratory cell types that frequently encounter a wide range of oxygen tensions in human tissues and in hypoxic areas, even under homeostatic conditions. Hypoxia-inducible factor 1 and 2 (HIF's) might have an important role in activation of T cells and cells of the monocyte-macrophages system. Thus, we investigated the regulation of HIF-dependent and, therefore, hypoxia-signaling systems in both cell types in altered gravity and performed transcript and protein analysis from parabolic flight and suborbital ballistic rocket experiments. We found that HIF-1α and HIF-1-dependent transcripts were differently regulated in altered gravity, whereas HIF-1α-dependent gene expression adapted after 5 min microgravity. Inter-platform comparisons identified PDK1 as highly responsive to gravitational changes in human U937 myelomonocytic cells and in Jurkat T cells. We suggest HIF-1 as a potential pharmacological target for counteracting immune system deterioration during space flight.
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