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Dong Q, Ren G, Li Y, Hao D. Network pharmacology analysis and experimental validation to explore the mechanism of kaempferol in the treatment of osteoporosis. Sci Rep 2024; 14:7088. [PMID: 38528143 DOI: 10.1038/s41598-024-57796-3] [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: 11/23/2023] [Accepted: 03/21/2024] [Indexed: 03/27/2024] Open
Abstract
Osteoporosis (OP) is a prevalent global disease characterized by bone mass loss and microstructural destruction, resulting in increased bone fragility and fracture susceptibility. Our study aims to investigate the potential of kaempferol in preventing and treating OP through a combination of network pharmacology and molecular experiments. Kaempferol and OP-related targets were retrieved from the public database. A protein-protein interaction (PPI) network of common targets was constructed using the STRING database and visualized with Cytoscape 3.9.1 software. Enrichment analyses for GO and KEGG of potential therapeutic targets were conducted using the Hiplot platform. Molecular docking was performed using Molecular operating environment (MOE) software, and cell experiments were conducted to validate the mechanism of kaempferol in treating OP. Network pharmacology analysis identified 54 overlapping targets between kaempferol and OP, with 10 core targets identified. The primarily enriched pathways included atherosclerosis-related signaling pathways, the AGE/RAGE signaling pathway, and the TNF signaling pathway. Molecular docking results indicated stable binding of kaempferol and two target proteins, AKT1 and MMP9. In vitro cell experiments demonstrated significant upregulation of AKT1 expression in MC3T3-E1 cells (p < 0.001) with kaempferol treatment, along with downregulation of MMP9 expression (p < 0.05) compared to the control group. This study predicted the core targets and pathways of kaempferol in OP treatment using network pharmacology, and validated these findings through in vitro experiments, suggesting a promising avenue for future clinical treatment of OP.
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Affiliation(s)
- Qi Dong
- Department of Orthopedics, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
- Department of Physical Medicine and Rehabilitation, The Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, China
| | - Guoxia Ren
- Department of Physical Medicine and Rehabilitation, Xi'an Chest Hospital, Xi'an, Shaanxi, China
| | - Yanzhao Li
- Department of Traditional Chinese Medicine, First Clinical Medical College, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, China
| | - Dingjun Hao
- Department of Orthopedics, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.
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Mazmanian K, Grauffel C, Dudev T, Lim C. Protein Ca 2+-Sites Prone to Sr 2+ Substitution: Implications for Strontium Therapy. J Phys Chem B 2023. [PMID: 37327495 DOI: 10.1021/acs.jpcb.3c01637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Strontium (Sr), an alkali metal with properties similar to calcium, in the form of soluble salts is used to treat osteoporosis. Despite the information accumulated on the role of Sr2+ as a Ca2+ mimetic in biology and medicine, there is no systematic study of how the outcome of the competition between the two dications depends on the physicochemical properties of (i) the metal ions, (ii) the first- and second-shell ligands, and (iii) the protein matrix. Specifically, the key features of a Ca2+-binding protein that enable Sr2+ to displace Ca2+ remain unclear. To address this, we studied the competition between Ca2+ and Sr2+ in protein Ca2+-binding sites using density functional theory combined with the polarizable continuum model. Our findings indicate that Ca2+-sites with multiple strong charge-donating protein ligands, including one or more bidentately bound Asp-/Glu- that are relatively buried and rigid are protected against Sr2+ attack. On the other hand, Ca2+-sites crowded with multiple protein ligands may be prone to Sr2+ displacement if they are solvent-exposed and flexible enough so that an extra backbone ligand from the outer shell can bind to Sr2+. In addition, solvent-exposed Ca2+ sites with only a few weak charge-donating ligands that can rearrange to fit the strontium's coordination requirements are susceptible to Sr2+ displacement. We provide the physical basis of these results and discuss potential novel protein targets of therapeutic Sr2+.
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Affiliation(s)
- Karine Mazmanian
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan
| | - Cédric Grauffel
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan
| | - Todor Dudev
- Faculty of Chemistry and Pharmacy, Sofia University, Sofia 1164, Bulgaria
| | - Carmay Lim
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan
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Seo YS, Lim H, Seo JY, Kang KR, Kim DK, Lee HH, Oh DS, Kim JS. The Ethanol Extracts of Osmanthus fragrans Leaves Ameliorate the Bone Loss via the Inhibition of Osteoclastogenesis in Osteoporosis. PLANTS (BASEL, SWITZERLAND) 2023; 12:253. [PMID: 36678965 PMCID: PMC9866894 DOI: 10.3390/plants12020253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/27/2022] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
The aim of this study was to evaluate the anti-osteoporosis effects of Osmanthus fragrans leaf ethanol extract (OFLEE) in bone marrow-derived macrophages (BMM) and animals with osteoporosis. OFLEE not only suppressed tartrate-resistant acid phosphatase (TRAP)-positive cells with multiple nuclei but also decreased TRAP activity in BMM treated with macrophage colony stimulating factor (M-CSF) and receptor activator of nuclear factor-κB (NF-κB) ligand (RANKL). The formation of F-actin rings and the expression and activation of matrix metalloproteinases were decreased by OFLEE in BMM treated with M-CSF and RANKL. OFLEE suppressed M-CSF- and RANKL-induced osteoclastogenesis by inhibiting NF-κB phosphorylation, tumor necrosis factor receptor-associated factor 6, c-fos, the nuclear factor of activated T-cells, cytoplasmic 1, and cathepsin K in BMM. OFLEE downregulated reactive oxygen species, cyclooxygenase-2, inducible nitric oxide synthase, prostaglandin E2, tumor necrosis factor α, interleukin (IL)-1β, IL-6, IL-17, and RANKL in BMM treated with M-CSF and RANKL. Oral administration of OFLEE suppressed osteoporotic bone loss without hepatotoxicity in ovariectomy-induced osteoporosis animals. Our findings suggest that OFLEE, with anti-inflammatory effects, prevents osteoporotic bone loss through the suppression of osteoclastic differentiation in BMM and animals with osteoporosis.
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Affiliation(s)
- Yo-Seob Seo
- Institute of Dental Science, Chosun University, Gwangju 61452, Republic of Korea
- Department of Oral and Maxillofacial Radiology, School of Dentistry, Chosun University, Gwangju 61452, Republic of Korea
| | - HyangI Lim
- Institute of Dental Science, Chosun University, Gwangju 61452, Republic of Korea
| | - Jeong-Yeon Seo
- Institute of Dental Science, Chosun University, Gwangju 61452, Republic of Korea
| | - Kyeong-Rok Kang
- Institute of Dental Science, Chosun University, Gwangju 61452, Republic of Korea
| | - Do Kyung Kim
- Institute of Dental Science, Chosun University, Gwangju 61452, Republic of Korea
| | - Hyun-Hwa Lee
- Department of Biology, Chosun University, Gwangju 61452, Republic of Korea
| | - Deuk-Sil Oh
- Jeollanamdo Forest Resources Research Institute, Naju 58213, Republic of Korea
| | - Jae-Sung Kim
- Institute of Dental Science, Chosun University, Gwangju 61452, Republic of Korea
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Kim MH, Choi LY, Chung JY, Kim EJ, Yang WM. Auraptene ameliorates osteoporosis by inhibiting RANKL/NFATc1 pathway-mediated bone resorption based on network pharmacology and experimental evaluation. Bone Joint Res 2022; 11:304-316. [PMID: 35579298 PMCID: PMC9130672 DOI: 10.1302/2046-3758.115.bjr-2021-0380.r1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
AIMS The association of auraptene (AUR), a 7-geranyloxycoumarin, on osteoporosis and its potential pathway was predicted by network pharmacology and confirmed in experimental osteoporotic mice. METHODS The network of AUR was constructed and a potential pathway predicted by Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway and Gene Ontology (GO) terms enrichment. Female ovariectomized (OVX) Institute of Cancer Research mice were intraperitoneally injected with 0.01, 0.1, and 1 mM AUR for four weeks. The bone mineral density (BMD) level was measured by dual-energy X-ray absorptiometry. The bone microstructure was determined by histomorphological changes in the femora. In addition, biochemical analysis of the serum and assessment of the messenger RNA (mRNA) levels of osteoclastic markers were performed. RESULTS In total, 65.93% of the genes of the AUR network matched with osteoporosis-related genes. Osteoclast differentiation was predicted to be a potential pathway of AUR in osteoporosis. Based on the network pharmacology, the BMD and bone mineral content levels were significantly (p < 0.05) increased in the whole body, femur, tibia, and lumbar spine by AUR. AUR normalized the bone microstructure and the serum alkaline phosphatase (ALP), bone-specific alkaline phosphatase (bALP), osteocalcin, and calcium in comparison with the OVX group. In addition, AUR treatment reduced TRAP-positive osteoclasts and receptor activator of nuclear factor kappa-B ligand (RANKL)+nuclear factor of activated T cells 1 (NFATc1)+ expression in the femoral body. Moreover, the expressions of initiators for osteoclastic resorption and bone matrix degradation were significantly (p < 0.05) regulated by AUR in the lumbar spine of the osteoporotic mice. CONCLUSION AUR ameliorated bone loss by downregulating the RANKL/NFATc1 pathway, resulting in improvement of osteoporosis. In conclusion, AUR might be an ameliorative cure that alleviates bone loss in osteoporosis via inhibition of osteoclastic activity. Cite this article: Bone Joint Res 2022;11(5):304-316.
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Affiliation(s)
- Mi H Kim
- Department of Convergence Korean Medical Science, Graduate School, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - La Y Choi
- Department of Convergence Korean Medical Science, Graduate School, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Jae Y Chung
- Department of Convergence Korean Medical Science, Graduate School, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Eun-Jung Kim
- Department of Acupuncture & Moxibustion, Dongguk University Bundang Oriental Hospital, Seongnam, South Korea
| | - Woong M Yang
- Department of Convergence Korean Medical Science, Graduate School, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
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Insight in Hypoxia-Mimetic Agents as Potential Tools for Mesenchymal Stem Cell Priming in Regenerative Medicine. Stem Cells Int 2022; 2022:8775591. [PMID: 35378955 PMCID: PMC8976669 DOI: 10.1155/2022/8775591] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 02/28/2022] [Accepted: 03/09/2022] [Indexed: 12/13/2022] Open
Abstract
Hypoxia-mimetic agents are new potential tools in MSC priming instead of hypoxia incubators or chambers. Several pharmaceutical/chemical hypoxia-mimetic agents can be used to induce hypoxia in the tissues: deferoxamine (DFO), dimethyloxaloylglycine (DMOG), 2,4-dinitrophenol (DNP), cobalt chloride (CoCl2), and isoflurane (ISO). Hypoxia-mimetic agents can increase cell proliferation, preserve or enhance differentiation potential, increase migration potential, and induce neovascularization in a concentration- and stem cell source-dependent manner. Moreover, hypoxia-mimetic agents may increase HIF-1α, changing the metabolism and enhancing glycolysis like hypoxia. So, there is clear evidence that treatment with hypoxia-mimetic agents is beneficial in regenerative medicine, preserving stem cell capacities. These agents are not studied so wildly as hypoxia but, considering the low cost and ease of use, are believed to find application as pretreatment of many diseases such as ischemic heart disease and myocardial fibrosis and promote cardiac and cartilage regeneration. The knowledge of MSC priming is critical in evaluating safety procedures and use in clinics. In this review, similarities and differences between hypoxia and hypoxia-mimetic agents in terms of their therapeutic efficiency are considered in detail. The advantages, challenges, and future perspectives in MSC priming with hypoxia mimetic agents are also discussed.
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Lv X, Wu P, Xiao S, Zhang W, Li Y, Ren B, Li Z, Xia K, Wang B. Matrix Metalloproteinases in Relation to Bone Mineral Density: A Two-Sample Mendelian Randomization Study. Front Genet 2021; 12:754795. [PMID: 34868227 PMCID: PMC8637623 DOI: 10.3389/fgene.2021.754795] [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: 08/07/2021] [Accepted: 11/02/2021] [Indexed: 11/13/2022] Open
Abstract
Background: We aimed at investigating causal associations between matrix metalloproteinases (MMPs) and bone mineral density (BMD) by the Mendelian randomization (MR) analysis. Methods: From genome-wide association studies of European ancestry, we selected instrumental variables for MMP-1, MMP-3, MMP-7, MMP-8, MMP-10, and MMP-12. Accordingly, we retrieved summary statistics of three site-specific BMD, namely, forearm, femoral neck, and lumbar spine. We conducted an inverse variance weighted MR as the primary method to compute overall effects from multiple instruments, while additional MR approaches and sensitivity analyses were implemented. Bonferroni-adjusted significance threshold was set at p < 0.05/18 = 0.003. Results: Totally, there was no evidence for causal effects of genetically-predicted levels of MMPs on BMD measurement at three common sites. MR results indicated that there were no causal associations of circulating MMPs with forearm BMD (all p ≥ 0.023) by the inverse variance weighted method. Similarly, there were no causal effects of MMPs on femoral neck BMD (all p ≥ 0.120) and MR results did not support causal relationships between MMPs and lumbar spine BMD (all p ≥ 0.017). Multiple sensitivity analyses suggested the robustness of MR results, which were less likely to be biased by unbalanced pleiotropy or evident heterogeneity. Conclusion: We found no evidence for the causal relationship between MMPs and BMD in the European population.
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Affiliation(s)
- Xin Lv
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Pengfei Wu
- Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, China.,Hunan Key Laboratory of Animal Models for Human Diseases, Central South University, Changsha, China
| | - Shipeng Xiao
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Wan Zhang
- Department of Biology, Boston University, Boston, MA, United States
| | - Yawei Li
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Bolin Ren
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Zhihong Li
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Kun Xia
- Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, China.,Hunan Key Laboratory of Animal Models for Human Diseases, Central South University, Changsha, China.,Hengyang Medical School, University of South China, Hengyang, China
| | - Bing Wang
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
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Sabry M, Mostafa S, Kamar S, Rashed L, Estaphan S. The cross-talk between matrix metalloproteinase-9, RANKL/OPG system and cardiovascular risk factors in ovariectomized rat model of postmenopausal osteoporosis. PLoS One 2021; 16:e0258254. [PMID: 34610044 PMCID: PMC8491879 DOI: 10.1371/journal.pone.0258254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 09/23/2021] [Indexed: 12/02/2022] Open
Abstract
Epidemiology and pathogenesis of cardiovascular diseases (CVD) and osteoporosis are strikingly overlapping. This study presents matrix metalloproteinase-9 (MMP-9), as a simple molecular link more consistently associated with the pathophysiology of both osteoporosis and CVD risk factors. 40 adult female rats were randomly distributed into 4 groups [control sham-operated, untreated osteoporosis, carvedilol-treated osteoporosis and alendronate-treated osteoporosis]. After 8 weeks, blood samples were collected to estimate Lipid profile (Total cholesterol, HDL, Triglycerides), inflammatory markers (IL-6, TNF alpha, CRP and NO), and Bone turnover markers (BTM) (Alkaline phosphatase, osteocalcin and pyridinoline). The tibias were dissected to estimate MMP-9 and NF-kB gene expression, OPG, RANKL levels and for histological examination. Induction of osteoporosis resulted in a significant elevation in BTM, inflammatory markers and dyslipidemia. MMP-9 was significantly elevated and positively correlated with BTM, inflammation and dyslipidemia markers. Carvedilol and alendronate exerted a bone preservative role and attenuated dyslipidaemia and inflammation in accordance with their respective effect on MMP-9.
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Affiliation(s)
- Maha Sabry
- Faculty of Medicine, Physiology Department, Cairo University, Giza, Egypt
| | - Seham Mostafa
- Faculty of Medicine, Physiology Department, Cairo University, Giza, Egypt
| | - Samaa Kamar
- Faculty of Medicine, Histology and Cell Biology Department, Cairo University, Giza, Egypt
- Histology Department, Armed Forces College of Medicine, Cairo, Egypt
| | - Laila Rashed
- Faculty of Medicine, Biochemistry Department, Cairo University, Giza, Egypt
| | - Suzanne Estaphan
- Faculty of Medicine, Physiology Department, Cairo University, Giza, Egypt
- ANU Medical School, Australian National University, Canberra, Australian Capital Territory, Australia
- * E-mail: ,
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Peng H, Hua Z, Yang H, Wang J. [Research progress on mechanism of myokines regulating bone tissue cells]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2021; 35:923-929. [PMID: 34308604 DOI: 10.7507/1002-1892.202012062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Objective To review the effects and mechanisms of various myokines secreted by skeletal muscle on various bone tissue cells. Methods Literature related to myokines and their regulation of bone tissue cells was reviewed and analyzed comprehensively in recent years. Results Bone and skeletal muscle are important members of the motor system, and they are closely related in anatomy, genetics, and physiopathology. In recent years, it has been found that skeletal muscle can secrete a variety of myokines to regulate bone marrow mesenchymal stem cells, osteoblasts, osteoclasts, and bone cells; these factors mutual crosstalk between myoskeletal unit, contact each other and influence each other, forming a complex myoskeletal micro-environment, and to some extent, it has a positive impact on bone repair and reconstruction. Conclusion Myokines are potential targets for the dynamic balance of bone tissue cells. In-depth study of its mechanism is helpful to the prevention and treatment of myoskeletal diseases.
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Affiliation(s)
- Hongcheng Peng
- Nanjing University of Traditional Chinese Medicine, Nanjing Jiangsu, 210023, P.R.China
| | - Zhen Hua
- Department of Orthopedics and Traumatology, Wuxi Affiliated Hospital, Nanjing University of Traditional Chinese Medicine, Wuxi Jiangsu, 214071, P.R.China
| | - Huilin Yang
- Department of Orthopedics, the First Affiliated Hospital of Soochow University, Suzhou Jiangsu, 215006, P.R.China
| | - Jianwei Wang
- Department of Orthopedics and Traumatology, Wuxi Affiliated Hospital, Nanjing University of Traditional Chinese Medicine, Wuxi Jiangsu, 214071, P.R.China
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Valenti MT, Mattè A, Federti E, Puder M, Anez-Bustillos L, Deiana M, Cheri S, Minoia A, Brugnara C, Di Paolo ML, Dalle Carbonare L, De Franceschi L. Dietary ω-3 Fatty Acid Supplementation Improves Murine Sickle Cell Bone Disease and Reprograms Adipogenesis. Antioxidants (Basel) 2021; 10:antiox10050799. [PMID: 34070133 PMCID: PMC8158389 DOI: 10.3390/antiox10050799] [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: 03/27/2021] [Revised: 05/01/2021] [Accepted: 05/12/2021] [Indexed: 12/28/2022] Open
Abstract
Sickle cell disease (SCD) is a genetic disorder of hemoglobin, leading to chronic hemolytic anemia and multiple organ damage. Among chronic organ complications, sickle cell bone disease (SBD) has a very high prevalence, resulting in long-term disability, chronic pain and fractures. Here, we evaluated the effects of ω-3 (fish oil-based, FD)-enriched diet vs. ω-6 (soybean oil-based, SD)- supplementation on murine SBD. We exposed SCD mice to recurrent hypoxia/reoxygenation (rec H/R), a consolidated model for SBD. In rec H/R SS mice, FD improves osteoblastogenesis/osteogenic activity by downregulating osteoclast activity via miR205 down-modulation and reduces both systemic and local inflammation. We also evaluated adipogenesis in both AA and SS mice fed with either SD or FD and exposed to rec H/R. FD reduced and reprogramed adipogenesis from white to brown adipocyte tissue (BAT) in bone compartments. This was supported by increased expression of uncoupling protein 1(UCP1), a BAT marker, and up-regulation of miR455, which promotes browning of white adipose tissue. Our findings provide new insights on the mechanism of action of ω-3 fatty acid supplementation on the pathogenesis of SBD and strengthen the rationale for ω-3 fatty acid dietary supplementation in SCD as a complementary therapeutic intervention.
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Affiliation(s)
- Maria Teresa Valenti
- Department of Medicine, University of Verona and Azienda Ospedaliera Universitaria Integrata Verona, 37128 Verona, Italy; (M.T.V.); (A.M.); (E.F.); (M.D.); (S.C.); (A.M.); (L.D.F.)
| | - Alessandro Mattè
- Department of Medicine, University of Verona and Azienda Ospedaliera Universitaria Integrata Verona, 37128 Verona, Italy; (M.T.V.); (A.M.); (E.F.); (M.D.); (S.C.); (A.M.); (L.D.F.)
| | - Enrica Federti
- Department of Medicine, University of Verona and Azienda Ospedaliera Universitaria Integrata Verona, 37128 Verona, Italy; (M.T.V.); (A.M.); (E.F.); (M.D.); (S.C.); (A.M.); (L.D.F.)
| | - Mark Puder
- Department of Surgery and The Vascular Biology Program, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA; (M.P.); (L.A.-B.)
| | - Lorenzo Anez-Bustillos
- Department of Surgery and The Vascular Biology Program, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA; (M.P.); (L.A.-B.)
| | - Michela Deiana
- Department of Medicine, University of Verona and Azienda Ospedaliera Universitaria Integrata Verona, 37128 Verona, Italy; (M.T.V.); (A.M.); (E.F.); (M.D.); (S.C.); (A.M.); (L.D.F.)
| | - Samuele Cheri
- Department of Medicine, University of Verona and Azienda Ospedaliera Universitaria Integrata Verona, 37128 Verona, Italy; (M.T.V.); (A.M.); (E.F.); (M.D.); (S.C.); (A.M.); (L.D.F.)
| | - Arianna Minoia
- Department of Medicine, University of Verona and Azienda Ospedaliera Universitaria Integrata Verona, 37128 Verona, Italy; (M.T.V.); (A.M.); (E.F.); (M.D.); (S.C.); (A.M.); (L.D.F.)
| | - Carlo Brugnara
- Departments of Pathology and Laboratory Medicine, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA;
| | | | - Luca Dalle Carbonare
- Department of Medicine, University of Verona and Azienda Ospedaliera Universitaria Integrata Verona, 37128 Verona, Italy; (M.T.V.); (A.M.); (E.F.); (M.D.); (S.C.); (A.M.); (L.D.F.)
- Correspondence: ; Tel.: +39-045-812-4401
| | - Lucia De Franceschi
- Department of Medicine, University of Verona and Azienda Ospedaliera Universitaria Integrata Verona, 37128 Verona, Italy; (M.T.V.); (A.M.); (E.F.); (M.D.); (S.C.); (A.M.); (L.D.F.)
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Matrix metalloproteinase 9 a potential major player connecting atherosclerosis and osteoporosis in high fat diet fed rats. PLoS One 2021; 16:e0244650. [PMID: 33571214 PMCID: PMC7877768 DOI: 10.1371/journal.pone.0244650] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 12/14/2020] [Indexed: 01/19/2023] Open
Abstract
Background Cardiovascular diseases (CVD) represent one of the major sequelae of obesity. On the other hand, the relationship between bone diseases and obesity remains unclear. An increasing number of biological and epidemiological studies suggest the presence of a link between atherosclerosis and osteoporosis, however, the precise molecular pathways underlying this close association remain poorly understood. The present work thus aimed to study Matrix Metalloproteinase 9 (MMP-9), as a proposed link between atherosclerosis and osteoporosis in high fat diet fed rats. Methods and findings 40 rats were randomly divided into 4 groups: control, untreated atherosclerosis group, atherosclerotic rats treated with carvedilol (10mg/kg/d) and atherosclerotic rats treated with alendronate sodium (10mg/kg/d). After 8 weeks, blood samples were collected for estimation of Lipid profile (Total cholesterol, HDL, TGs), inflammatory markers (IL-6, TNF-α, CRP and NO) and Bone turnover markers (BTMs) (Alkaline phosphatase, osteocalcin and pyridinoline). Rats were then euthanized and the aortas and tibias were dissected for histological examination and estimation of MMP-9, N-terminal propeptide of type I procollagen (PINP), C-terminal telopeptide of type I collagen (CTX) and NF-kB expression. Induction of atherosclerosis via high fat diet and chronic stress induced a significant increase in BTMs, inflammatory markers and resulted in a state of dyslipidaemia. MMP-9 has also shown to be significantly increased in the untreated atherosclerosis rats and showed a significant correlation with all measured parameters. Interestingly, Carvedilol and bisphosphonate had almost equal effects restoring the measured parameters back to normal, partially or completely. Conclusion MMP-9 is a pivotal molecule that impact the atherogenic environment of the vessel wall. A strong cross talk exists between MMP-9, cytokine production and macrophage function. It also plays an important regulatory role in osteoclastogenesis. So, it may be a key molecule in charge for coupling CVD and bone diseases in high fat diet fed rats. Therefore, we suggest MMP-9 as a worthy molecule to be targeted pharmacologically in order to control both conditions simultaneously. Further studies are needed to support, to invest and to translate this hypothesis into clinical studies and guidelines.
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Effects of 12-Week Exercise Program on Enzyme Activity of Serum Matrix Metalloproteinase-9 and Tissue Inhibitor of Metalloproteinase-1 in Female Patients with Postmenopausal Osteoporosis: A Randomized Control Study. BIOMED RESEARCH INTERNATIONAL 2020; 2020:9758289. [PMID: 32071923 PMCID: PMC7011433 DOI: 10.1155/2020/9758289] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 12/27/2019] [Accepted: 01/03/2020] [Indexed: 01/02/2023]
Abstract
Background Osteoporosis is a disease characterized by decreased bone density and destruction of bone microarchitecture. Indicators for altered bone homeostasis are changes in the serum level of matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs). The purpose of the current study was to evaluate the effect of a 12-week exercise program on enzyme activity of serum MMP-9 and TIMP-1 in postmenopausal osteoporotic patients. Materials and methods. Participants were randomized in two groups: exercise (EG) (N = 37) and control (CG) (N = 37) and control (CG) ( Results Significant differences between pretreatment and posttreatment enzyme activities of serum MMP-9 (p=0.009), TIMP-1 (p=0.009), TIMP-1 (p=0.009), TIMP-1 ( Conclusion Our results suggest that a 12-week exercise program has an influence on enzyme activity of serum MMP-9, revealing a possible role of MMPs in initiating training-specific adaptation. Although measurements of circulating MMP-9 and TIMP-1 allowed us to detect effects of exercise, as of today, they have no real role in the diagnosis of osteoporosis and/or follow-up of osteoporotic patient's response to treatment. MMP-9 might be used as an important prognostic marker for the evaluation of patient's response to exercise. Larger-randomized controlled studies need to be performed to expand this area of knowledge. This trial is registered with trial registration number: NCT03816449).
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