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Yin Y, Yang J, Gao G, Zhou H, Chi B, Yang HY, Li J, Wang Y. Enhancing cell-scale performance via sustained release of the varicella-zoster virus antigen from a microneedle patch under simulated microgravity. Biomater Sci 2024; 12:763-775. [PMID: 38164004 DOI: 10.1039/d3bm01440a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
The immune system of astronauts might become weakened in the microgravity environment in space, and the dormant varicella-zoster virus (VZV) in the body might be reactivated, seriously affecting their work and safety. For working in orbit for the long term, there is currently no efficient and durable delivery system of general vaccines in a microgravity environment. Accordingly, based on the previous foundation, we designed, modified, and synthesized a biodegradable and biocompatible copolymer, polyethylene glycol-polysulfamethazine carbonate urethane (PEG-PSCU) that could be mainly adopted to fabricate a novel sustained-release microneedle (S-R MN) patch. Compared with conventional biodegradable microneedles, this S-R MN patch could not only efficiently encapsulate protein vaccines (varicella-zoster virus glycoprotein E, VZV gE) but also further prolong the release time of VZV gE in a simulated microgravity (SMG) environment. Eventually, we verified the activation of dendritic cells by VZV gE released from the S-R MN patch in an SMG environment and the positive bioeffect of activated dendritic cells on lymphocytes using an in vitro lymph node model. This study is of great significance for the exploration of long-term specific immune responses to the VZV in an SMG environment.
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Affiliation(s)
- Yue Yin
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, China.
| | - Junyuan Yang
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, China.
| | - Ge Gao
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, China.
| | - Huaijuan Zhou
- Advanced Research Institute of Multidisciplinary Sciences, Beijing Institute of Technology, Beijing 100081, China
| | - Bowen Chi
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China.
| | - Hong Yu Yang
- College of Materials Science and Engineering, Jilin Institute of Chemical Technology, Jilin City 132022, Jilin Province, China.
| | - Jinhua Li
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, China.
| | - Yilong Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China.
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2
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Morgenroth S, Roggo A, Pawlik L, Dummer R, Ramelyte E. What Is New in Cutaneous T Cell Lymphoma? Curr Oncol Rep 2023; 25:1397-1408. [PMID: 37874473 PMCID: PMC10640416 DOI: 10.1007/s11912-023-01464-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/25/2023] [Indexed: 10/25/2023]
Abstract
PURPOSE OF REVIEW This review focuses on updates in prognosis, pathogenesis, and treatment of cutaneous T cell lymphoma (CTCL). RECENT FINDINGS Cohort studies indicate imaging may be necessary in early-stage CTCL. Risk factors for progression of CTCL have been identified. Interactions between malignant cells and the tumor microenvironment (TME) and the skin microbiome advance the understanding of pathogenesis and tumor cell dissemination. Studies support a hypothesis of circulating malignant tumor cells. MicroRNA (miR) influence tumor progression and prognosis; the IL22-STAT3-CCL20 cascade may be a novel target. IL-4, IL-5, and IL-31 cytokines are relevant for pruritus and could be targets for therapeutic interventions. Systemic therapies, such as JAK inhibitors, targeted antibodies, and checkpoint inhibitors, show promise in advanced stages. Allogenic hematopoietic stem cell transplantation provides a potential curative option for patients. Further investigations of prognosis and translational research are necessary to improve stratification of patients for treatment.
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Affiliation(s)
- Sarah Morgenroth
- Department of Dermatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Andrea Roggo
- Department of Dermatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Laura Pawlik
- Department of Dermatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Reinhard Dummer
- Department of Dermatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Egle Ramelyte
- Department of Dermatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
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3
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Mechanical regulation of bone remodeling. Bone Res 2022; 10:16. [PMID: 35181672 PMCID: PMC8857305 DOI: 10.1038/s41413-022-00190-4] [Citation(s) in RCA: 134] [Impact Index Per Article: 67.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 11/04/2021] [Accepted: 12/13/2021] [Indexed: 12/17/2022] Open
Abstract
Bone remodeling is a lifelong process that gives rise to a mature, dynamic bone structure via a balance between bone formation by osteoblasts and resorption by osteoclasts. These opposite processes allow the accommodation of bones to dynamic mechanical forces, altering bone mass in response to changing conditions. Mechanical forces are indispensable for bone homeostasis; skeletal formation, resorption, and adaptation are dependent on mechanical signals, and loss of mechanical stimulation can therefore significantly weaken the bone structure, causing disuse osteoporosis and increasing the risk of fracture. The exact mechanisms by which the body senses and transduces mechanical forces to regulate bone remodeling have long been an active area of study among researchers and clinicians. Such research will lead to a deeper understanding of bone disorders and identify new strategies for skeletal rejuvenation. Here, we will discuss the mechanical properties, mechanosensitive cell populations, and mechanotransducive signaling pathways of the skeletal system.
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Dhar S, Kaeley DK, Kanan MJ, Yildirim-Ayan E. Mechano-Immunomodulation in Space: Mechanisms Involving Microgravity-Induced Changes in T Cells. Life (Basel) 2021; 11:life11101043. [PMID: 34685414 PMCID: PMC8537592 DOI: 10.3390/life11101043] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 09/28/2021] [Accepted: 09/29/2021] [Indexed: 01/03/2023] Open
Abstract
Of the most prevalent issues surrounding long-term spaceflight, the sustainability of human life and the maintenance of homeostasis in an extreme environment are of utmost concern. It has been observed that the human immune system is dysregulated in space as a result of gravitational unloading at the cellular level, leading to potential complications in astronaut health. A plethora of studies demonstrate intracellular changes that occur due to microgravity; however, these ultimately fall short of identifying the underlying mechanisms and dysfunctions that cause such changes. This comprehensive review covers the changes in human adaptive immunity due to microgravity. Specifically, there is a focus on uncovering the gravisensitive steps in T cell signaling pathways. Changes in gravitational force may lead to interrupted immune signaling cascades at specific junctions, particularly membrane and surface receptor-proximal molecules. Holistically studying the interplay of signaling with morphological changes in cytoskeleton and other cell components may yield answers to what in the T cell specifically experiences the consequences of microgravity. Fully understanding the nature of this problem is essential in order to develop proper countermeasures before long-term space flight is conducted.
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Affiliation(s)
- Sarit Dhar
- Department of Bioengineering, College of Engineering, University of Toledo, Toledo, OH 43606, USA; (S.D.); (D.K.K.); (M.J.K.)
| | - Dilpreet Kaur Kaeley
- Department of Bioengineering, College of Engineering, University of Toledo, Toledo, OH 43606, USA; (S.D.); (D.K.K.); (M.J.K.)
| | - Mohamad Jalal Kanan
- Department of Bioengineering, College of Engineering, University of Toledo, Toledo, OH 43606, USA; (S.D.); (D.K.K.); (M.J.K.)
| | - Eda Yildirim-Ayan
- Department of Bioengineering, College of Engineering, University of Toledo, Toledo, OH 43606, USA; (S.D.); (D.K.K.); (M.J.K.)
- Department of Orthopaedic Surgery, University of Toledo Medical Center, Toledo, OH 43614, USA
- Correspondence: ; Tel.: +1-419-530-8257; Fax: +1-419-530-8030
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Avitabile E, Fusco L, Minardi S, Orecchioni M, Zavan B, Yilmazer A, Rauner M, Pippia P, Tasciotti E, Delogu LG. Bioinspired Scaffold Action Under the Extreme Physiological Conditions of Simulated Space Flights: Osteogenesis Enhancing Under Microgravity. Front Bioeng Biotechnol 2020; 8:722. [PMID: 32733868 PMCID: PMC7362936 DOI: 10.3389/fbioe.2020.00722] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 06/08/2020] [Indexed: 12/24/2022] Open
Abstract
Prolonged exposure to microgravity (MG) during long-duration space flights is known to induce severe dysregulation of osteoblast functions connected to a significant bone loss, similar to the condition induced by osteoporosis. Hence, we here present MG as a promising model to challenge the effectiveness of new scaffolds designed for bone regeneration in counteracting bone loss. To this end, we carried out an integrative study aimed to evaluate, in the extreme condition of Random Positioning Machine-simulated MG, the osteoinductive potential of nanocrystalline magnesium-doped hydroxyapatite/type I collagen composite scaffold (MHA/Coll), that we previously demonstrated to be an excellent tool for bone tissue engineering. Initially, to test the osteoinductive properties of our bioinspired-scaffold, MHA/Coll structure was fully characterized under MG condition and compared to its static counterpart. Human bone marrow-derived mesenchymal stem cells were used to investigate the scaffold biocompatibility and ability to promote osteogenic differentiation after long-duration exposure to MG (up to 21 days). The results demonstrate that the nanostructure of MHA/Coll scaffold can alleviate MG-induced osteoblast dysfunction, promoting cell differentiation along the osteogenic lineage, with a consequent reduction in the expression of the surface markers CD29, CD44, and CD90. Moreover, these findings were corroborated by the ability of MHA/Coll to induce the expression of genes linked to osteogenesis, including alkaline phosphatase and osteocalcin. This study confirmed MHA/Coll capabilities in promoting osteogenesis even in extreme long-term condition of MG, suggesting MG as an effective challenging model to apply in future studies to validate the ability of advanced scaffolds to counteract bone loss, facilitating their application in translational Regenerative Medicine and Tissue Engineering.
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Affiliation(s)
| | - Laura Fusco
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste, Italy.,Fondazione Istituto di Ricerca pediatrica Cittá della Speranza, Padua, Italy.,Cancer Research Department, Sidra Medicine, Doha, Qatar
| | - Silvia Minardi
- Center for Musculoskeletal Regeneration, Houston Methodist Research Institute, Houston, TX, United States
| | - Marco Orecchioni
- Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy
| | - Barbara Zavan
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy.,Maria Cecilia Hospital, GVM Care & Research, Ravenna, Italy
| | - Acelya Yilmazer
- Department of Biomedical Engineering, Ankara University, Ankara, Turkey.,Stem Cell Institute, Ankara University, Ankara, Turkey
| | - Martina Rauner
- Department of Medicine III, Center for Healthy Aging, Technische Universität Dresden, Dresden, Germany
| | - Proto Pippia
- Department of Physiological, Biochemical and Cellular Science, University of Sassari, Sassari, Italy
| | - Ennio Tasciotti
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, United States
| | - Lucia Gemma Delogu
- Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy.,Fondazione Istituto di Ricerca pediatrica Cittá della Speranza, Padua, Italy.,Department of Biomedical Science, University of Padua, Padua, Italy
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Prolonged exposure to simulated microgravity diminishes dendritic cell immunogenicity. Sci Rep 2019; 9:13825. [PMID: 31554863 PMCID: PMC6761163 DOI: 10.1038/s41598-019-50311-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 09/10/2019] [Indexed: 01/13/2023] Open
Abstract
Immune dysfunction due to microgravity remains a hurdle in the next step of human space exploration. Dendritic cells (DC) represent a critical component of immunity, given their role in the detection of invaders and the subsequent task of activating T cells to respond and eliminate the threat. Upon encounter with microbes, DC undergo a process of maturation, whereby the cells upregulate the expression of surface proteins and secrete cytokines, both required for the optimal activation of CD4+ and CD8+ T cells. In this study, DC were cultured from 2–14 days in a rotary cell culture system, which generates a simulated microgravity (SMG) environment, and then the cells were assessed for maturation status and the capacity to activate T cells. Short-term culture (<72 h) of DC in SMG resulted in an increased expression of surface proteins associated with maturation and interleukin-6 production. Subsequently, the SMG exposed DC were superior to Static control DC at activating both CD4+ and CD8+ T cells as measured by interleukin-2 and interferon-γ production, respectively. However, long-term culture (4–14 d) of DC in SMG reduced the expression of maturation markers and the capacity to activate T cells as compared to Static DC controls.
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Effect of Weightlessness on the 3D Structure Formation and Physiologic Function of Human Cancer Cells. BIOMED RESEARCH INTERNATIONAL 2019; 2019:4894083. [PMID: 31073526 PMCID: PMC6470427 DOI: 10.1155/2019/4894083] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/27/2019] [Accepted: 02/27/2019] [Indexed: 02/07/2023]
Abstract
With the rapid development of modern medical technology and the deterioration of living environments, cancer, the most important disease that threatens human health, has attracted increasing concerns. Although remarkable achievements have been made in tumor research during the past several decades, a series of problems such as tumor metastasis and drug resistance still need to be solved. Recently, relevant physiological changes during space exploration have attracted much attention. Thus, space exploration might provide some inspiration for cancer research. Using on ground different methods in order to simulate microgravity, structure and function of cancer cells undergo many unique changes, such as cell aggregation to form 3D spheroids, cell-cycle inhibition, and changes in migration ability and apoptosis. Although numerous better experiments have been conducted on this subject, the results are not consistent. The reason might be that different methods for simulation have been used, including clinostats, random positioning machine (RPM) and rotating wall vessel (RWV) and so on. Therefore, we review the relevant research and try to explain novel mechanisms underlying tumor cell changes under weightlessness.
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Van Walleghem M, Tabury K, Fernandez-Gonzalo R, Janssen A, Buchheim JI, Choukèr A, Baatout S, Moreels M. Gravity-Related Immunological Changes in Human Whole Blood Cultured Under Simulated Microgravity Using an In Vitro Cytokine Release Assay. J Interferon Cytokine Res 2018; 37:531-540. [PMID: 29252128 DOI: 10.1089/jir.2017.0065] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Although immune dysfunction by space conditions has been reported postflight, as well as during ground-based experiments, the cause(s) and nature of the immunological changes are not completely understood. Microgravity has been suggested as one of the factors responsible for the observed immune dysregulation. The goal of this study was to assess immune changes in simulated microgravity (s-μG) using an in vitro cytokine release assay. The effect of s-μG provided by the desktop random positioning machine on cell-mediated immunity was examined by analyzing interleukin 2 (IL-2), interferon-γ (IFN-γ), tumor necrosis factor alpha (TNF-α), and interleukin 10 (IL-10), in response to immune cell stimulation in whole blood samples (n = 10). Stimuli used were bacterial recall antigens, pokeweed mitogen (PWM), lipopolysaccharide (LPS), or heat-killed Listeria monocytogenes (HKLM). S-μG caused an overall inhibition of the IL-2 and IFN-γ responses to recall antigen and mitogen stimulation. More specifically, s-μG most strongly influenced the levels of all four cytokines elicited by bacterial recall antigen stimulation. In contrast, HKLM-induced TNF-α secretion was elevated. The average concentrations of TNF-α in response to PWM and LPS and IL-10 release stimulated by PWM, LPS, and HKLM were not significantly altered by s-μG. However, a variable response between individual subjects could be observed. In conclusion, our results demonstrate that the in vitro cytokine release assay can detect gravity-related immune alterations. Furthermore, the use of multiple stimuli and the associated changes in cytokine secretion has the potential to reveal information on the underlying mechanisms affected by s-μG.
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Affiliation(s)
- Merel Van Walleghem
- 1 Radiobiology Unit, Belgian Nuclear Research Centre , SCK•CEN, Mol, Belgium .,2 Department of Molecular Biotechnology, Ghent University , Ghent, Belgium
| | - Kevin Tabury
- 1 Radiobiology Unit, Belgian Nuclear Research Centre , SCK•CEN, Mol, Belgium .,3 Department of Biomedical Engineering, University of South Carolina , Columbia, South Carolina
| | | | - Ann Janssen
- 1 Radiobiology Unit, Belgian Nuclear Research Centre , SCK•CEN, Mol, Belgium
| | - Judith-Irina Buchheim
- 4 Laboratory of Translational Research "Stress and Immunology," Department of Anesthesiology, Klinikum Großhadern, University of Munich , Munich, Germany
| | - Alexander Choukèr
- 4 Laboratory of Translational Research "Stress and Immunology," Department of Anesthesiology, Klinikum Großhadern, University of Munich , Munich, Germany
| | - Sarah Baatout
- 1 Radiobiology Unit, Belgian Nuclear Research Centre , SCK•CEN, Mol, Belgium .,2 Department of Molecular Biotechnology, Ghent University , Ghent, Belgium
| | - Marjan Moreels
- 1 Radiobiology Unit, Belgian Nuclear Research Centre , SCK•CEN, Mol, Belgium
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9
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Huyan T, Li Q, Yang H, Jin ML, Zhang MJ, Ye LJ, Li J, Huang QS, Yin DC. Protective effect of polysaccharides on simulated microgravity-induced functional inhibition of human NK cells. Carbohydr Polym 2013; 101:819-27. [PMID: 24299844 DOI: 10.1016/j.carbpol.2013.10.021] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 09/14/2013] [Accepted: 10/05/2013] [Indexed: 10/26/2022]
Abstract
Polysaccharides are believed to be strong immunostimulants that can promote the proliferation and activity of T cells, B cells, macrophages and natural killer (NK) cells. This study aimed to investigate the effects of five polysaccharides (Grifola frondosa polysaccharide (GFP), lentinan (LNT), G. lucidum polysaccharide (GLP), Lycium barbarum polysaccharide (LBP) and yeast glucan (YG)) on primary human NK cells under normal or simulated microgravity (SMG) conditions. Our results demonstrated that polysaccharides markedly promoted the cytotoxicity of NK cells by enhancing IFN-γ and perforin secretion and increasing the expression of the activating receptor NKp30 under normal conditions. Meanwhile polysaccharides can enhance NK cell function under SMG conditions by restoring the expression of the activating receptor NKG2D and reducing the early apoptosis and late apoptosis/necrosis. Moreover, the antibody neutralization test showed that CR3 may be the critical receptor involved in polysaccharides induced NK cells activation. These findings indicated that polysaccharides may be used as immune regulators to promote the health of the public and astronauts during space missions.
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Affiliation(s)
- Ting Huyan
- Key Laboratory for Space Bioscience and Space Biotechnology, School of Life Sciences, Northwestern Polytechnical University, 127 Youyi Xilu, Xi'an 710072, Shaanxi, PR China; School of Materials Science and Engineering, Northwestern Polytechnical University, 127 Youyi Xilu, Xi'an 710072, Shaanxi, PR China
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10
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Li Q, Mei Q, Huyan T, Xie L, Che S, Yang H, Zhang M, Huang Q. Effects of simulated microgravity on primary human NK cells. ASTROBIOLOGY 2013; 13:703-14. [PMID: 23919749 PMCID: PMC3746215 DOI: 10.1089/ast.2013.0981] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
The deleterious effects of microgravity on lymphocytes have been demonstrated in previous studies. However, research on the effects of microgravity on human natural killer (NK) cells remains exceedingly limited. In this study, we demonstrated that NK cell cytotoxicity was significantly decreased under simulated microgravity (SMG) conditions (p<0.05). Several processes, including apoptosis, receptor expression, and cytokine secretion, were investigated in human NK cells under SMG. We observed decreased cytotoxicity, concurrent with increased apoptosis and necrosis, in NK cells after exposure to SMG (p<0.05). Additionally, interferon (IFN)-γ and perforin expression decreased significantly, and the expression of granzyme-B was only slightly reduced. Meanwhile, SMG selectively inhibited the expression of certain surface receptors on NK cells. Specifically, the expression of NKG2A and NKG2D were significantly downregulated under SMG, but the expression of NKp30 and NKp44 was not affected. We also found that interleukin (IL)-15 alone or in combination with IL-12 could counteract the inhibition of NK cell cytotoxicity under SMG. Our findings indicate that human NK cells were sensitive to SMG, as reflected by their decreased cytotoxicity. Factors such as increased early apoptosis and late apoptosis/necrosis and the decreased expression of INF-γ, cytolytic proteins, and cell surface receptors may be responsible for the loss of cytotoxicity in human NK cells under SMG. A combination of IL-12 and IL-15 may be useful as a therapeutic strategy for overcoming the effects of microgravity on human NK cells during long space missions.
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Affiliation(s)
- Qi Li
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Science, Northwestern Polytechnical University, Xi'an, Shaan Xi Province, P.R. China
| | - Qibing Mei
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Science, Northwestern Polytechnical University, Xi'an, Shaan Xi Province, P.R. China
| | - Ting Huyan
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Science, Northwestern Polytechnical University, Xi'an, Shaan Xi Province, P.R. China
| | - Li Xie
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Science, Northwestern Polytechnical University, Xi'an, Shaan Xi Province, P.R. China
| | - Su Che
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Science, Northwestern Polytechnical University, Xi'an, Shaan Xi Province, P.R. China
| | - Hui Yang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Science, Northwestern Polytechnical University, Xi'an, Shaan Xi Province, P.R. China
| | - Mingjie Zhang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Science, Northwestern Polytechnical University, Xi'an, Shaan Xi Province, P.R. China
- Laboratory of Molecular Virology, Center for Biologics Evaluation and Research, U.S. Food and Drug Administration, Rockville, Maryland, USA
| | - Qingsheng Huang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Science, Northwestern Polytechnical University, Xi'an, Shaan Xi Province, P.R. China
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Zhang Y, Wang H, Lai C, Wang L, Deng Y. Comparative proteomic analysis of human SH-SY5Y neuroblastoma cells under simulated microgravity. ASTROBIOLOGY 2013; 13:143-150. [PMID: 23421552 DOI: 10.1089/ast.2012.0822] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Microgravity is one of the most important features in spaceflight. Previous evidence has shown that neurophysiological impairment signs occurred under microgravity. The present study was undertaken to explore the change in protein abundance in human SH-SY5Y neuroblastoma cells that were grown in a microgravity environment. The comparative proteomic method based on the (18)O labeling technique was applied to investigate the up-regulated proteins and down-regulated proteins in SH-SY5Y under simulated microgravity. Twenty-two differentially abundant proteins were quantified in human SH-SY5Y neuroblastoma cells. The cell microfilament network was disrupted under simulated microgravity, which was determined by the immunocytochemistry. The concentration of reactive oxygen species, malondialdehyde, and free Ca2+ ion significantly increased, and the level of ATP significantly decreased under simulated microgravity. However, there was no obvious cell apoptosis observed under simulated microgravity. These results provide new molecular evidence for the change in protein abundance in SH-SY5Y cells under simulated microgravity, which might unfold biological mechanisms and the development of effective countermeasures to deal with microgravity-related neurological problems. We believe that the state-of-the-art proteomic assay may be a means by which aerospace scientists will begin to understand the underlying mechanisms of space life activities at the protein level.
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Affiliation(s)
- Yongqian Zhang
- School of Life Science, Beijing Institute of Technology, Beijing, China
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