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Aladev SD, Sokolov DK, Strokotova AV, Kazanskaya GM, Volkov AM, Politko MO, Shahmuradova AI, Kliver EE, Tsidulko AY, Aidagulova SV, Grigorieva EV. Dexamethasone effects on the expression and content of glycosylated components of mouse brain tissue. ADVANCES IN MOLECULAR ONCOLOGY 2023. [DOI: 10.17650/2313-805x-2023-10-1-25-39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
Abstract
Introduction. Glucocorticoids are actively used in the treatment of various diseases, however their long-term use leads to numerous negative side-effects, the molecular mechanisms of which remain poorly understood.Aim. Study of the short-term (1–10 days) effects of various doses of dexamethasone (Dex) (0,1–10 mg/kg) on the expression of the glucocorticoid receptor (GR, Nr3c1), core proteins of main proteoglycans and heparan sulfate metabolism-involved genes, as well as the content of carbohydrate macromolecules of glycosaminoglycans in the brain tissue of experimental animals.Materials and methods. In the study, C57Bl/6 mice were used. The expression of GR, proteoglycan core proteins and heparan sulfate metabolism-involved genes was determined by real-time polymerase chain reaction with reverse transcription. The content and localization of GR protein molecule were studied by Western blot and immunohistochemical analysis, and the glycosaminoglycan content was determined by dot-blot analysis and Alcian Blue staining.Results. It was shown that a single Dex administration leads to fast (1–3 days) short-term activation of GR expression (+1.5 times, p <0.05), proteoglycan’s genes (syndecan-3, Sdc3; perlecan, Hspg2; phosphacan, Ptprz1; neurocan, Ncan; +2–3-fold; p <0.05) and heparan sulfate-metabolism-involved genes (Ndst1, Glce, Hs2st1, Hs6st1, Sulf1 / 2; +1.5–2-fold; p <0.05) in the mouse brain, with a return to control values by 7–10 days after Dex administration. At the same time, the effect of Dex on carbohydrate macromolecules of glycosaminoglycans was more delayed and stable, increasing the content of low-sulfated glycosaminoglycans in the brain tissue in a dose-dependent manner starting from day 1 after Dex administration. Highly-sulfated glycosaminoglycans showed more delayed response to Dex administration, and an increase in their content was observed only at higher doses (2.5 and 10 mg/kg) and only on 7–10 days after its administration, apparently, mainly due to an increase in heparan sulfate content.Conclusion. In general, the effect of a single injection of Dex on the transcriptional activity of GR, proteoglycan core proteins and heparan sulfate metabolism-involved genes were short-termed, and the genes expression quickly returned to the normal levels. However, even a single use of Dex significantly increased the content of total as well as highly sulfated glycosaminoglycans in the mouse brain tissue, which can lead to the changes in the composition and structure of the brain tissue, as well as its functional characteristics.
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Affiliation(s)
- S. D. Aladev
- Institute of Molecular Biology and Biophysics of the Federal Research Center for Fundamental and Translational Medicine, Ministry of Science and Higher Education of the Russian Federation
| | - D. K. Sokolov
- Institute of Molecular Biology and Biophysics of the Federal Research Center for Fundamental and Translational Medicine, Ministry of Science and Higher Education of the Russian Federation
| | - A. V. Strokotova
- Institute of Molecular Biology and Biophysics of the Federal Research Center for Fundamental and Translational Medicine, Ministry of Science and Higher Education of the Russian Federation
| | - G. M. Kazanskaya
- Institute of Molecular Biology and Biophysics of the Federal Research Center for Fundamental and Translational Medicine, Ministry of Science and Higher Education of the Russian Federation
| | | | - M. O. Politko
- Institute of Molecular Biology and Biophysics of the Federal Research Center for Fundamental and Translational Medicine, Ministry of Science and Higher Education of the Russian Federation
| | - A. I. Shahmuradova
- Institute of Molecular Biology and Biophysics of the Federal Research Center for Fundamental and Translational Medicine, Ministry of Science and Higher Education of the Russian Federation
| | | | - A. Y. Tsidulko
- Institute of Molecular Biology and Biophysics of the Federal Research Center for Fundamental and Translational Medicine, Ministry of Science and Higher Education of the Russian Federation
| | - S. V. Aidagulova
- Institute of Molecular Biology and Biophysics of the Federal Research Center for Fundamental and Translational Medicine, Ministry of Science and Higher Education of the Russian Federation; Novosibirsk State Medical University
| | - E. V. Grigorieva
- Institute of Molecular Biology and Biophysics of the Federal Research Center for Fundamental and Translational Medicine, Ministry of Science and Higher Education of the Russian Federation
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Heparan Sulfate Glycosaminoglycan Is Predicted to Stabilize Inflammatory Infiltrate Formation and RANKL/OPG Ratio in Severe Periodontitis in Humans. Bioengineering (Basel) 2022; 9:bioengineering9100566. [DOI: 10.3390/bioengineering9100566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/12/2022] [Accepted: 10/13/2022] [Indexed: 11/16/2022] Open
Abstract
Since chronically inflamed periodontal tissue exhibits extracellular matrix (ECM) degradation, the possible alternative to standard periodontitis treatment is to restore ECM by supplementing its components, including heparan sulfate glycosaminoglycan (HS GAG). Supplementation of the degraded ECM with synthetic derivatives of HS GAGs has been shown to be effective for periodontal tissue regeneration in experimental animal models of periodontitis. However, the potential of HS GAG supplementation for the treatment of periodontal disease in humans is still unknown. Here, we used a statistical model to investigate the role of HS GAG on inflammatory infiltrate formation and alveolar bone resorption in humans with severe periodontitis. The model was based on data from immunofluorescence staining (IF) of human gingiva samples, and reconstruction of a subset of HS GAG -related proteins from STRING reactome database. According to predictions, increased expression of native HS GAG might stabilize the accumulation of gingival inflammatory infiltrate (represented by the general inflammatory cell marker CD45) and alveolar bone resorption (represented by Receptor Activator of Nuclear ΚΒ ligand (RANKL) and osteoprotegerin (OPG) ratio) but could not restore them to healthy tissue levels. Therefore, supplementation of native HS GAG may be of limited benefits for the treatment of sever periodontitis in humans.
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Stromal Co-Cultivation for Modeling Breast Cancer Dormancy in the Bone Marrow. Cancers (Basel) 2022; 14:cancers14143344. [PMID: 35884405 PMCID: PMC9320268 DOI: 10.3390/cancers14143344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/05/2022] [Accepted: 07/05/2022] [Indexed: 11/16/2022] Open
Abstract
Cancers metastasize to the bone marrow before primary tumors can be detected. Bone marrow micrometastases are resistant to therapy, and while they are able to remain dormant for decades, they recur steadily and result in incurable metastatic disease. The bone marrow microenvironment maintains the dormancy and chemoresistance of micrometastases through interactions with multiple cell types and through structural and soluble factors. Modeling dormancy in vitro can identify the mechanisms of these interactions. Modeling also identifies mechanisms able to disrupt these interactions or define novel interactions that promote the reawakening of dormant cells. The in vitro modeling of the interactions of cancer cells with various bone marrow elements can generate hypotheses on the mechanisms that control dormancy, treatment resistance and reawakening in vivo. These hypotheses can guide in vivo murine experiments that have high probabilities of succeeding in order to verify in vitro findings while minimizing the use of animals in experiments. This review outlines the existing data on predominant stromal cell types and their use in 2D co-cultures with cancer cells.
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Liu D, Zeng YY, Shi MM, Qu JM. Glucocorticoids Elevate Pseudomonas aeruginosa Binding to Airway Epithelium by Upregulating Syndecan-1 Expression. Front Microbiol 2021; 12:725483. [PMID: 34790176 PMCID: PMC8591732 DOI: 10.3389/fmicb.2021.725483] [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: 06/15/2021] [Accepted: 09/15/2021] [Indexed: 11/13/2022] Open
Abstract
Glucocorticoids are commonly used for the treatment of asthma and chronic obstructive pulmonary disease (COPD). Inhaled corticosteroids are associated with a significantly increased risk of pneumonia. Syndecan-1 (SDC1) located in the cell membrane of airway epithelial cell is the crucial molecule mediating infections by P. aeruginosa (PA). In the present study, we found that SDC1 expression was upregulated and the adhesion of PA to human bronchial epithelial (HBE) cells increased to 125 and 138%, respectively, after stimulation by dexamethasone or budesonide. The HBE cells knocking down SDC1 showed lower affinity to PA compared with control. CCAAT-enhancer-binding protein β (C/EBP β) and its phosphorylated form participated in the regulation of glucocorticoid to SDC1 for interfering C/EBP β or inhibiting phosphorylation of C/EBP β by LiCl and BIO, which are inhibitors of glycogen synthase kinase 3β (GSK-3β), and could prevent glucocorticoids from upregulating SDC1 expression. One should be cautious in administering glucocorticoids in chronic lung disease because of their property of increasing the expression of SDC1 and PA binding to the airway epithelium.
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Affiliation(s)
- Dong Liu
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Respiratory and Critical Care Medicine, Huadong Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Ying-Ying Zeng
- Department of Respiratory and Critical Care Medicine, Zhongshan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Meng-Meng Shi
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jie-Ming Qu
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Timmen M, Hidding H, Götte M, Khassawna TE, Kronenberg D, Stange R. The heparan sulfate proteoglycan Syndecan-1 influences local bone cell communication via the RANKL/OPG axis. Sci Rep 2020; 10:20510. [PMID: 33239699 PMCID: PMC7688641 DOI: 10.1038/s41598-020-77510-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 11/09/2020] [Indexed: 12/25/2022] Open
Abstract
The heparan sulfate proteoglycan Syndecan-1, a mediator of signals between the extracellular matrix and cells involved is able to interact with OPG, one of the major regulators of osteoclastogenesis. The potential of osteoblasts to induce osteoclastogenesis is characterized by a switch of OPG (low osteoclastogenic potential) towards RANKL production (high osteoclastogenic potential). In the present study, we investigated the influence of endogenous Syndecan-1 on local bone-cell-communication via the RANKL/OPG-axis in murine osteoblasts and osteoclasts in wild type and Syndecan-1 lacking cells. Syndecan-1 expression and secretion was increased in osteoblasts with high osteoclastogenic potential. Syndecan-1 deficiency led to increased OPG release by osteoblasts that decreased the availability of RANKL. In co-cultures of Syndecan-1 deficient osteoblasts with osteoclast these increased OPG in supernatant caused decreased development of osteoclasts. Syndecan-1 and RANKL level were increased in serum of aged WT mice, whereas Syndecan-1 deficient mice showed high serum OPG concentration. However, bone structure of Syndecan-1 deficient mice was not different compared to wild type. In conclusion, Syndecan-1 could be regarded as a new modulator of bone-cell-communication via RANKL/OPG axis. This might be of high impact during bone regeneration or bone diseases like cancer where Syndecan-1 expression is known to be even more prevalent.
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Affiliation(s)
- Melanie Timmen
- Department of Regenerative Musculoskeletal Medicine, Institute of Musculoskeletal Medicine, University Muenster, Muenster, Germany.
| | - Heriburg Hidding
- Department of Regenerative Musculoskeletal Medicine, Institute of Musculoskeletal Medicine, University Muenster, Muenster, Germany
| | - Martin Götte
- Department of Gynecology and Obstetrics, University Hospital Muenster, Muenster, Germany
| | - Thaqif El Khassawna
- Experimental Trauma Surgery, Justus-Liebig University Giessen, Giessen, Germany
| | - Daniel Kronenberg
- Department of Regenerative Musculoskeletal Medicine, Institute of Musculoskeletal Medicine, University Muenster, Muenster, Germany
| | - Richard Stange
- Department of Regenerative Musculoskeletal Medicine, Institute of Musculoskeletal Medicine, University Muenster, Muenster, Germany
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Rody WJ, Krokhin O, Spicer V, Chamberlain CA, Chamberlain M, McHugh KP, Wallet SM, Emory AK, Crull JD, Holliday LS. The use of cell culture platforms to identify novel markers of bone and dentin resorption. Orthod Craniofac Res 2018. [PMID: 28643914 DOI: 10.1111/ocr.12162] [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: 12/01/2022]
Abstract
OBJECTIVES 1) To test the hypothesis that there would be proteomic differences in the composition of exosomes isolated from osteoclasts and odontoclasts and 2) to determine the clinical usefulness of these in vitro biomarker candidates. MATERIALS AND METHODS Mouse bone marrow-derived precursors were cultured on either dentin or bone slices and allowed to mature and begin resorption. Exosomes were isolated from cell culture media and characterized by mass spectrometry. The proteomic data obtained from this in vitro study were compared with the data obtained from human samples in our previous work. RESULTS There was a difference in the proteomic composition of exosomes from osteoclasts and odontoclasts. A total of 40 exosomal proteins were only present in osteoclast media, whereas six unique exosomal proteins were identified in odontoclast supernatants. Approximately 50% of exosomal proteins released by clastic cells in vitro can be found in oral fluids. CONCLUSION Our data suggest that the mineralized matrix type plays a role in the final phenotypic characteristics of mouse clastic cells. Many in vitro biomarker candidates of bone and dentin resorption can also be found in human oral fluids, thus indicating that this approach may be a viable alternative in biomarker discovery.
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Affiliation(s)
- W J Rody
- Department of Orthodontics, University of Florida, Gainesville, FL, USA
| | - O Krokhin
- Manitoba Center for Proteomics, Winnipeg, MB, Canada
| | - V Spicer
- Manitoba Center for Proteomics, Winnipeg, MB, Canada
| | - C A Chamberlain
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL, USA
| | - M Chamberlain
- Department of Oral Biology, University of Florida, Gainesville, FL, USA
| | - K P McHugh
- Department of Periodontology, University of Florida, Gainesville, FL, USA
| | - S M Wallet
- Department of Oral Biology, University of Florida, Gainesville, FL, USA
| | - A K Emory
- Department of Orthodontics, University of Florida, Gainesville, FL, USA
| | - J D Crull
- Department of Microbiology and Cell Science, University of Florida, Gainesville, FL, USA
| | - L S Holliday
- Department of Orthodontics, University of Florida, Gainesville, FL, USA
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Göbel A, Thiele S, Browne AJ, Rauner M, Zinna VM, Hofbauer LC, Rachner TD. Combined inhibition of the mevalonate pathway with statins and zoledronic acid potentiates their anti-tumor effects in human breast cancer cells. Cancer Lett 2016; 375:162-171. [DOI: 10.1016/j.canlet.2016.03.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 03/02/2016] [Accepted: 03/02/2016] [Indexed: 12/22/2022]
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