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Zhang L, Peng TL, Wang L, Meng XH, Zhu W, Zeng Y, Zhu JQ, Zhou Y, Xiao HM, Deng HW. Network-based Transcriptome-wide Expression Study for Postmenopausal Osteoporosis. J Clin Endocrinol Metab 2020; 105:5850085. [PMID: 32483604 PMCID: PMC7320836 DOI: 10.1210/clinem/dgaa319] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 05/27/2020] [Indexed: 01/08/2023]
Abstract
PURPOSE Menopause is a crucial physiological transition during a woman's life, and it occurs with growing risks of health issues like osteoporosis. To identify postmenopausal osteoporosis-related genes, we performed transcriptome-wide expression analyses for human peripheral blood monocytes (PBMs) using Affymetrix 1.0 ST arrays in 40 Caucasian postmenopausal women with discordant bone mineral density (BMD) levels. METHODS We performed multiscale embedded gene coexpression network analysis (MEGENA) to study functionally orchestrating clusters of differentially expressed genes in the form of functional networks. Gene sets net correlations analysis (GSNCA) was applied to assess how the coexpression structure of a predefined gene set differs in high and low BMD groups. Bayesian network (BN) analysis was used to identify important regulation patterns between potential risk genes for osteoporosis. A small interfering ribonucleic acid (siRNA)-based gene silencing in vitro experiment was performed to validate the findings from BN analysis. RESULT MEGENA showed that the "T cell receptor signaling pathway" and the "osteoclast differentiation pathway" were significantly enriched in the identified compact network, which is significantly correlated with BMD variation. GSNCA revealed that the coexpression structure of the "Signaling by TGF-beta receptor complex pathway" is significantly different between the 2 BMD discordant groups; the hub genes in the postmenopausal low and high BMD group are FURIN and SMAD3 respectively. With siRNA in vitro experiments, we confirmed the regulation relationship of TGFBR2-SMAD7 and TGFBR1-SMURF2. MAIN CONCLUSION The present study suggests that biological signals involved in monocyte recruitment, monocyte/macrophage lineage development, osteoclast formation, and osteoclast differentiation might function together in PBMs that contribute to the pathogenesis of postmenopausal osteoporosis.
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Affiliation(s)
- Lan Zhang
- Center for Biomedical informatics and Genomics, Department of Medicine, Tulane University, New Orleans, Louisiana
| | - Tian-Liu Peng
- Institute of Reproduction and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Le Wang
- Institute of Reproduction and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Xiang-He Meng
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
| | - Wei Zhu
- Center for Biomedical informatics and Genomics, Department of Medicine, Tulane University, New Orleans, Louisiana
| | - Yong Zeng
- Center for Biomedical informatics and Genomics, Department of Medicine, Tulane University, New Orleans, Louisiana
| | - Jia-Qiang Zhu
- Department of Biostatistics, University of Michigan, Ann Arbor, Michigan
| | - Yu Zhou
- Center for Biomedical informatics and Genomics, Department of Medicine, Tulane University, New Orleans, Louisiana
| | - Hong-Mei Xiao
- Institute of Reproduction and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Hong-Wen Deng
- Center for Biomedical informatics and Genomics, Department of Medicine, Tulane University, New Orleans, Louisiana
- Correspondence and Reprint Requests: Hong-Wen Deng, Center for Biomedical Informatics and Genomics, Department of Medicine, School of Medicine, Tulane University, New Orleans, LA 70112, USA. E-mail:
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152
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Copsel SN, Malek TR, Levy RB. Medical Treatment Can Unintentionally Alter the Regulatory T-Cell Compartment in Patients with Widespread Pathophysiologic Conditions. THE AMERICAN JOURNAL OF PATHOLOGY 2020; 190:2000-2012. [PMID: 32745461 DOI: 10.1016/j.ajpath.2020.07.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 07/14/2020] [Accepted: 07/20/2020] [Indexed: 12/13/2022]
Abstract
Regulatory T cells (Tregs) are non-redundant mediators of immune tolerance that are critical to prevent autoimmune disease and promote an anti-inflammatory tissue environment. Many individuals experience chronic diseases and physiologic changes associated with aging requiring long-term medication. Unfortunately, adverse effects accompany every pharmacologic intervention and may affect overall outcomes. We focus on medications typically prescribed during the treatment of prevalent chronic diseases and disorders, including cardiovascular disease, autoimmune disease, and menopausal symptoms, that affect >200 million individuals in the United States. Increasing studies continue to report that treatment of patients with estrogen, metformin, statins, vitamin D, and tumor necrosis factor blockers are unintentionally modulating the Treg compartment. Effects of these medications likely comprise direct and/or indirect interaction with Tregs via other immune and parenchymal populations. Differing and sometimes opposing effects on the Treg compartment have been observed using the same medication. The length of treatment, dosing regimen and stage of disease, patient age, ethnicity, and sex may account for such findings and determine the specific signaling pathways affected by the medication. Enhancing the Treg compartment can skew the patient's immune system toward an anti-inflammatory phenotype and therefore could provide unanticipated benefit. Currently, multiple medicines prescribed to large numbers of patients influence the Treg compartment; however, how such effects affect their disease outcome and long-term health remains unclear.
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Affiliation(s)
- Sabrina N Copsel
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, Florida.
| | - Thomas R Malek
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, Florida
| | - Robert B Levy
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, Florida
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153
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Nogami S, Yamauchi K, Odashima K, Ito K, Iikubo M, Kumasaka A, Martinez-de la Cruz G, Gaggl A, Kumamoto H, Takahashi T. Influence of oestrogen deficiency and excessive mechanical stress on condylar head of mandible. Oral Dis 2020; 26:1718-1726. [PMID: 32475080 DOI: 10.1111/odi.13452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 05/16/2020] [Accepted: 05/22/2020] [Indexed: 11/28/2022]
Abstract
OBJECTIVE We assessed the aetiology of idiopathic condylar resorption by examining the effects of oestrogen and compressive mechanical stress under a low systemic oestrogen condition in temporomandibular joints (TMJ) caused by an ovariectomy. MATERIALS AND METHODS Female rabbits were divided into non-ovariectomy (non-OVX) and ovariectomy (OVX) groups. A cortical osteotomy was performed with a custom device that was increased in length by 0.25 mm every 12 hr for 1 week after the operation, during which the TMJs in the rabbits received compressive mechanical stress. Samples from both groups were examined with micro-computed tomography and histological staining. RESULTS Area and depth of bone resorption were both greater in the OVX group. Furthermore, a significantly earlier and greater prevalence of sub-condylar bone resorption was noted in that group, while cells positive for tartrate-resistant acid phosphatase were increased in the OVX group. CONCLUSIONS The present findings suggest that oestrogen induced a much greater amount of bone resorption on the anterior surface of the condylar head at an earlier stage in the TMJs of the present model rabbits. Thereafter, restoration of TMJ function appeared to occur in a normal manner.
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Affiliation(s)
- Shinnosuke Nogami
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Kensuke Yamauchi
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Kenji Odashima
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Ko Ito
- Department of Maxillofacial Surgery, Nihon University School of Dentistry at Matsudo, Matsudo, Japan
| | - Masahiro Iikubo
- Division of Oral Diagnosis, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Akira Kumasaka
- Division of Oral Diagnosis, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | | | - Alexander Gaggl
- Department of Oral and Maxillofacial Surgery, Paracelsus Medical University Salzburg, Salzburg, Austria
| | - Hiroyuki Kumamoto
- Division of Oral Pathology, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Tetsu Takahashi
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan
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154
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Kanagasabapathy D, Blosser RJ, Maupin KA, Hong JM, Alvarez M, Ghosh J, Mohamad SF, Aguilar-Perez A, Srour EF, Kacena MA, Bruzzaniti A. Megakaryocytes promote osteoclastogenesis in aging. Aging (Albany NY) 2020; 12:15121-15133. [PMID: 32634116 PMCID: PMC7425434 DOI: 10.18632/aging.103595] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Accepted: 06/13/2020] [Indexed: 01/26/2023]
Abstract
Megakaryocytes (MKs) support bone formation by stimulating osteoblasts (OBs) and inhibiting osteoclasts (OCs). Aging results in higher bone resorption, leading to bone loss. Whereas previous studies showed the effects of aging on MK-mediated bone formation, the effects of aging on MK-mediated OC formation is poorly understood. Here we examined the effect of thrombopoietin (TPO) and MK-derived conditioned media (CM) from young (3-4 months) and aged (22-25 months) mice on OC precursors. Our findings showed that aging significantly increased OC formation in vitro. Moreover, the expression of the TPO receptor, Mpl, and circulating TPO levels were elevated in the bone marrow cavity. We previously showed that MKs from young mice secrete factors that inhibit OC differentiation. However, rather than inhibiting OC development, we found that MKs from aged mice promote OC formation. Interestingly, these age-related changes in MK functionality were only observed using female MKs, potentially implicating the sex steroid, estrogen, in signaling. Further, RANKL expression was highly elevated in aged MKs suggesting MK-derived RANKL signaling may promote osteoclastogenesis in aging. Taken together, these data suggest that modulation in TPO-Mpl expression in bone marrow and age-related changes in the MK secretome promote osteoclastogenesis to impact skeletal aging.
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Affiliation(s)
- Deepa Kanagasabapathy
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Rachel J Blosser
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Kevin A Maupin
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Jung Min Hong
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN 46202, USA
| | - Marta Alvarez
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Joydeep Ghosh
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Safa F Mohamad
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Alexandra Aguilar-Perez
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN 46202, USA
| | - Edward F Srour
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Melissa A Kacena
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Angela Bruzzaniti
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN 46202, USA
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155
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Strock NCA, De Souza MJ, Williams NI. Eating behaviours related to psychological stress are associated with functional hypothalamic amenorrhoea in exercising women. J Sports Sci 2020; 38:2396-2406. [PMID: 32619140 DOI: 10.1080/02640414.2020.1786297] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Functional hypothalamic amenorrhoea (FHA) can occur due to the independent or combined effects of psychogenic and energetic stressors. In exercising women, research has primarily focused on energy deficiency as the cause of FHA while psychological stressors have been ignored. To assess both psychological and metabolic factors associated with FHA in exercising women, we performed across-sectional comparison of 61 exercising women (≥2 hours/week, age 18-35 years, BMI 16-25kg/m2), who were eumenorrheic or amenorrhoeic confirmed by daily urine samples assayed for reproductive hormone metabolites. Psychological factors and eating behaviours were assessed by self-report questionnaires. Exercising women with FHA had lower resting metabolic rate (p=0.023), T3 (p<0.001), T4 (p=0.013), leptin (p=0.002), higher peptide YY (p<0.001), greater drive for thinness (p=0.017), greater dietary cognitive restraint (p<0.001), and displayed dysfunctional attitudes, i.e., need for social approval (p=0.047) compared to eumenorrheic women. Amenorrhoeic women displayed asignificant positive correlation between the need for social approval and drive for thinness with indicators of stress, depression, and mood, which was not apparent in eumenorrheic women. In exercising women with FHA, eating behaviours are positively related to indicators of psychological stress and depression.
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Affiliation(s)
- Nicole C A Strock
- 109 Noll Laboratory, Penn State University, University Park , PA.,Women's Health and Exercise Laboratory, Penn State University,University Park , PA
| | - Mary Jane De Souza
- Women's Health and Exercise Laboratory, Penn State University,University Park , PA
| | - Nancy I Williams
- Women's Health and Exercise Laboratory, Penn State University,University Park , PA
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156
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Omata Y, Frech M, Lucas S, Primbs T, Knipfer L, Wirtz S, Kadono Y, Saito T, Tanaka S, Sarter K, Schett G, Zaiss MM. Type 2 innate lymphoid cells inhibit the differentiation of osteoclasts and protect from ovariectomy-induced bone loss. Bone 2020; 136:115335. [PMID: 32240850 DOI: 10.1016/j.bone.2020.115335] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 12/25/2022]
Abstract
While the role of T cells in the regulation of bone homeostasis is well defined, little is known about the role of innate lymphoid cells (ILCs) on bone. ILCs are innate immune cells that share cytokine expression patterns with T cells but lack the T cell receptor. In this study we show that type 2 ILCs (ILC2) potently inhibit the generation of bone resorbing osteoclasts in vitro as well as favorably influence bone homeostasis under steady state conditions in vivo using loss and gain of function models. Furthermore, adoptive transfer of ILC2 completely abrogated ovariectomy-induced bone loss by significantly down-regulating osteoclast numbers in vivo. The suppressive effects of ILC2s on osteoclasts in vitro and in vivo as well as the protection from ovariectomy-induced bone loss were linked to their expression of IL-4 and IL-13 as well as STAT6 activation on the myeloid target cell, since deletion of IL-4/IL-13 in ILC2s or STAT6 in osteoclast precursors abrogated the anti-osteoclastogenic effect of ILC2s. Taken together, these findings show that ILC2 have to be considered as potent regulators of bone homeostasis.
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Affiliation(s)
- Yasunori Omata
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany; Department of Orthopaedic Surgery, The University of Tokyo, Tokyo, Japan; Deutsches Zentrum für Immuntherapie (DZI), Germany
| | - Michael Frech
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany; Deutsches Zentrum für Immuntherapie (DZI), Germany
| | - Sébastien Lucas
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany; Deutsches Zentrum für Immuntherapie (DZI), Germany
| | - Tatjana Primbs
- Department of Internal Medicine 1, University of Erlangen-Nuremberg, Germany; Deutsches Zentrum für Immuntherapie (DZI), Germany
| | - Lisa Knipfer
- Department of Internal Medicine 1, University of Erlangen-Nuremberg, Germany; Deutsches Zentrum für Immuntherapie (DZI), Germany
| | - Stefan Wirtz
- Department of Internal Medicine 1, University of Erlangen-Nuremberg, Germany; Deutsches Zentrum für Immuntherapie (DZI), Germany
| | - Yuho Kadono
- Department of Orthopaedic Surgery, Saitama Medical University, Saitama, Japan
| | - Taku Saito
- Department of Orthopaedic Surgery, The University of Tokyo, Tokyo, Japan
| | - Sakae Tanaka
- Department of Orthopaedic Surgery, The University of Tokyo, Tokyo, Japan
| | - Kerstin Sarter
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany; Deutsches Zentrum für Immuntherapie (DZI), Germany
| | - Georg Schett
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany; Deutsches Zentrum für Immuntherapie (DZI), Germany
| | - Mario M Zaiss
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany; Deutsches Zentrum für Immuntherapie (DZI), Germany.
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157
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Nuclear receptors in osteoclasts. Curr Opin Pharmacol 2020; 53:8-17. [PMID: 32569976 DOI: 10.1016/j.coph.2020.03.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 03/09/2020] [Accepted: 03/23/2020] [Indexed: 02/08/2023]
Abstract
Osteoclasts are bone-resorbing cells that play an essential role in the remodeling of bone under physiological conditions and numerous pathological conditions, such as osteoporosis, bone metastasis, and inflammatory bone erosion. Nuclear receptors are crucial to various physiological processes, including metabolism, development and inflammation, and function as transcription factors to activate target genes. Synthetic ligands of nuclear receptors are also available for the treatment of metabolic and inflammatory diseases. However, dysregulated bone phenotypes have been documented in patients who take synthetic nuclear receptor ligands as a therapy. Therefore, the effect of nuclear receptors on bone cells has become an important area of exploration; additionally, the molecular mechanisms underlying the action of nuclear receptors in osteoclasts have not been completely understood. Here, we cover the recent progress in our understanding of the roles of nuclear receptors in osteoclasts.
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158
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Hwang YH, Jang SA, Lee A, Cho CW, Song YR, Hong HD, Ha H, Kim T. Polysaccharides isolated from lotus leaves (LLEP) exert anti-osteoporotic effects by inhibiting osteoclastogenesis. Int J Biol Macromol 2020; 161:449-456. [PMID: 32531355 DOI: 10.1016/j.ijbiomac.2020.06.059] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 05/25/2020] [Accepted: 06/08/2020] [Indexed: 12/21/2022]
Abstract
Nelumbo nucifera, more commonly known as the Indian lotus, is an important plant that has been incorporated into traditional herbal remedies along the years. Even today, lotus leaves are considered reservoirs for bioactive compounds that can be used as nutritional supplements to treat various human diseases. However, despite the wide ranging biological activities of lotus polysaccharides, limited information is available regarding the anti-osteoporotic effects of these substances. The aim of this study was to investigate the beneficial effects of pectinase-assisted extractable polysaccharides from lotus leaves (LLEP) on estrogen deficiency-induced bone loss and osteoclast differentiation in bone marrow-derived macrophages. We found that LLEP markedly inhibited receptor activator of the nuclear factor-κB ligand (RANKL)-induced osteoclast differentiation in a dose-dependent manner. It also revoked RANKL-induced activation of osteoclastogenic signals such as the expression of key transcription factors (i.e., c-Fos and nuclear factor of activated T cells cytoplasmic 1), resulting in a decrement in osteoclast-specific marker gene expressions. Microcomputed tomography and morphometric analysis revealed that a four-week oral administration of LLEP notably decreased trabecular bone loss. Taken together, our results suggest that LLEP can mitigate estrogen deficiency-induced bone loss by suppressing osteoclastogenesis, which makes it an excellent candidate for combating osteoporosis.
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Affiliation(s)
- Youn-Hwan Hwang
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea; University of Science & Technology (UST), Korean Convergence Medicine Major KIOM, Daejeon 34054, Republic of Korea
| | - Seon-A Jang
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - Ami Lee
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea; University of Science & Technology (UST), Korean Convergence Medicine Major KIOM, Daejeon 34054, Republic of Korea
| | - Chang-Won Cho
- Korea Food Research Institute, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Young-Ran Song
- Korea Food Research Institute, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Hee-Do Hong
- Korea Food Research Institute, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Hyunil Ha
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea.
| | - Taesoo Kim
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea.
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159
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Cabrera D, Kruger M, Wolber FM, Roy NC, Fraser K. Effects of short- and long-term glucocorticoid-induced osteoporosis on plasma metabolome and lipidome of ovariectomized sheep. BMC Musculoskelet Disord 2020; 21:349. [PMID: 32503480 PMCID: PMC7275480 DOI: 10.1186/s12891-020-03362-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 05/25/2020] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Understanding the metabolic and lipidomic changes that accompany bone loss in osteoporosis might provide insights about the mechanisms behind molecular changes and facilitate developing new drugs or nutritional strategies for osteoporosis prevention. This study aimed to examine the effects of short- or long-term glucocorticoid-induced osteoporosis on plasma metabolites and lipids of ovariectomized (OVX) sheep. METHODS Twenty-eight aged ewes were divided randomly into four groups: an OVX group, OVX in combination with glucocorticoids for two months (OVXG2), and OVX in combination with five doses of glucocorticoids (OVXG5) to induce bone loss, and a control group. Liquid chromatography-mass spectrometry untargeted metabolomic analysis was applied to monthly plasma samples to follow the progression of osteoporosis over five months. RESULTS The metabolite profiles revealed significant differences in the plasma metabolome of OVX sheep and OVXG when compared with the control group by univariate analysis. Nine metabolites were altered, namely 5-methoxytryptophan, valine, methionine, tryptophan, glutaric acid, 2-pyrrolidone-5-carboxylic acid, indole-3-carboxaldehyde, 5-hydroxylysine and malic acid. Similarly, fifteen lipids were perturbed from multiple lipid classes such as lysophoslipids, phospholipids and ceramides. CONCLUSION This study showed that OVX and glucocorticoid interventions altered the metabolite and lipid profiles of sheep, suggesting that amino acid and lipid metabolisms are potentially the main perturbed metabolic pathways regulating bone loss in OVX sheep.
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Affiliation(s)
- Diana Cabrera
- Food Nutrition & Health Team, AgResearch Grasslands, Tennent Drive, Palmerston North, 4442 New Zealand
| | - Marlena Kruger
- School of Health Sciences, Massey University, Tennent Drive, Palmerston North, 4442 New Zealand
- Riddet Institute, Massey University, Palmerston North, 4442 New Zealand
| | - Frances M. Wolber
- Riddet Institute, Massey University, Palmerston North, 4442 New Zealand
- School of Food Advanced technology, Massey University, Tennent Drive, Palmerston North, 4442 New Zealand
- Centre for Metabolic Health Research, Massey University, Tennent Drive, Palmerston North, 4442 New Zealand
| | - Nicole C. Roy
- Food Nutrition & Health Team, AgResearch Grasslands, Tennent Drive, Palmerston North, 4442 New Zealand
- Riddet Institute, Massey University, Palmerston North, 4442 New Zealand
- High-Value Nutrition National Science Challenge, Auckland, 1142 New Zealand
| | - Karl Fraser
- Food Nutrition & Health Team, AgResearch Grasslands, Tennent Drive, Palmerston North, 4442 New Zealand
- Riddet Institute, Massey University, Palmerston North, 4442 New Zealand
- High-Value Nutrition National Science Challenge, Auckland, 1142 New Zealand
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160
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KADİROĞLU ET, KARAYÜREK F, AKBALIK ME. Evaluation of the effects of bone morphogenetic protein-2 on the healing of bone calvarial defects in ovariectomized rats. TURKISH JOURNAL OF VETERINARY AND ANIMAL SCIENCES 2020. [DOI: 10.3906/vet-1911-24] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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161
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Hsiao HY, Cheng CM, Kao SW, Liu JW, Chang CS, Harhaus L, Huang JJ. The effect of bone inhibitors on periosteum-guided cartilage regeneration. Sci Rep 2020; 10:8372. [PMID: 32433520 PMCID: PMC7239872 DOI: 10.1038/s41598-020-65448-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 05/04/2020] [Indexed: 11/09/2022] Open
Abstract
The regeneration capacity of knee cartilage can be enhanced by applying periosteal grafts, but this effect varies depending on the different sources of the periosteal grafts applied for cartilage formation. Tibia periosteum can be used to enhance cartilage repair. However, long-term analysis has not been conducted. The endochondral ossification capacity of tibia periosteum during cartilage repair also needs to be investigated. In this study, both vascularized and non-vascularized tibia periosteum grafts were studied to understand the relationship between tissue perfusion of the periosteum graft and the effects on cartilage regeneration and bone formation. Furthermore, anti-ossification reagents were added to evaluate the efficacy of the prevention of bone formation along with cartilage regeneration. A critical-size cartilage defect (4 × 4 mm) was created and was covered with an autologous tibia vascularized periosteal flap or with a non-vascularized tibia periosteum patch on the knee in the rabbit model. A portion of the vascularized periosteum group was also treated with the anti-osteogenic reagents Fulvestrant and IL1β to inhibit unwanted bone formation. Our results indicated that the vascularized periosteum significantly enhanced cartilage regeneration in the cartilage defect region in long-term treatment compared to the non-vascularized group. Furthermore, the addition of anti-osteogenic reagents to the vascularized periosteum group suppressed bone formation but also reduced the cartilage regeneration rate. Our study using vascularized autologous tissue to repair cartilage defects of the knee may lead to the modification of current treatment in regard to osteoarthritis knee repair.
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Affiliation(s)
- Hui-Yi Hsiao
- Division of Microsurgery Reconstructive Microsurgery, Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Chang Gung University, College of Medicine, Taoyuan, Taiwan.,Center for Tissue Engineering, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chao-Min Cheng
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Shu-Wei Kao
- Division of Microsurgery Reconstructive Microsurgery, Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Chang Gung University, College of Medicine, Taoyuan, Taiwan.,Center for Tissue Engineering, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Jia-Wei Liu
- Division of Microsurgery Reconstructive Microsurgery, Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Chang Gung University, College of Medicine, Taoyuan, Taiwan.,Center for Tissue Engineering, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chun-Shin Chang
- Department of Craniofacial Surgery, Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Chang Gung University, College of Medicine, Taoyuan, Taiwan
| | - Leila Harhaus
- Department of Plastic Surgery of Heidelberg University, BG Trauma center Ludwigshafen, Ludwigshafen, Germany
| | - Jung-Ju Huang
- Division of Microsurgery Reconstructive Microsurgery, Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Chang Gung University, College of Medicine, Taoyuan, Taiwan. .,Center for Tissue Engineering, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
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162
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Primary osteoporosis in men: an unmet medical need. Fertil Steril 2020; 112:791-798. [PMID: 31731933 DOI: 10.1016/j.fertnstert.2019.10.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 10/01/2019] [Indexed: 12/27/2022]
Abstract
Osteoporosis is a skeletal disease characterized by loss of bone strength and increased risk of fractures. Even though fracture prevalence is higher in women, fractures also constitute a significant public health issue in older men. Men are screened less and more frequently undertreated than female patients. It is the goal of this review, to summarize updated information about the current understanding of pathophysiology and clinical aspects of diagnosis and treatment of osteoporosis in men.
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163
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Madel MB, Ibáñez L, Ciucci T, Halper J, Rouleau M, Boutin A, Hue C, Duroux-Richard I, Apparailly F, Garchon HJ, Wakkach A, Blin-Wakkach C. Dissecting the phenotypic and functional heterogeneity of mouse inflammatory osteoclasts by the expression of Cx3cr1. eLife 2020; 9:54493. [PMID: 32400390 PMCID: PMC7220377 DOI: 10.7554/elife.54493] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 04/26/2020] [Indexed: 12/19/2022] Open
Abstract
Bone destruction relies on interactions between bone and immune cells. Bone-resorbing osteoclasts (OCLs) were recently identified as innate immune cells activating T cells toward tolerance or inflammation. Thus, pathological bone destruction not only relies on increased osteoclast differentiation, but also on the presence of inflammatory OCLs (i-OCLs), part of which express Cx3cr1. Here, we investigated the contribution of mouse Cx3cr1+ and Cx3cr1neg i-OCLs to bone loss. We showed that Cx3cr1+ and Cx3cr1neg i-OCLs differ considerably in transcriptional and functional aspects. Cx3cr1neg i-OCLs have a high ability to resorb bone and activate inflammatory CD4+ T cells. Although Cx3cr1+ i-OCLs are associated with inflammation, they resorb less and have in vitro an immune-suppressive effect on Cx3cr1neg i-OCLs, mediated by PD-L1. Our results provide new insights into i-OCL heterogeneity. They also reveal that different i-OCL subsets may interact to regulate inflammation. This contributes to a better understanding and prevention of inflammatory bone destruction.
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Affiliation(s)
- Maria-Bernadette Madel
- Laboratoire de PhysioMédecine Moléculaire, CNRS, Nice, France.,Université Côte d'Azur, Nice, France
| | - Lidia Ibáñez
- Department of Pharmacy, Cardenal Herrera-CEU University, Valencia, Spain
| | - Thomas Ciucci
- Laboratory of Immune Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, United States
| | - Julia Halper
- Laboratoire de PhysioMédecine Moléculaire, CNRS, Nice, France.,Université Côte d'Azur, Nice, France
| | - Matthieu Rouleau
- Laboratoire de PhysioMédecine Moléculaire, CNRS, Nice, France.,Université Côte d'Azur, Nice, France
| | - Antoine Boutin
- Laboratoire de PhysioMédecine Moléculaire, CNRS, Nice, France.,Université Côte d'Azur, Nice, France
| | - Christophe Hue
- Université Paris-Saclay, UVSQ, INSERM, Infection et inflammation, Montigny-Le-Bretonneux, France
| | | | | | - Henri-Jean Garchon
- Université Paris-Saclay, UVSQ, INSERM, Infection et inflammation, Montigny-Le-Bretonneux, France.,Genetics division, Ambroise Paré Hospital, AP-HP, Boulogne-Billancourt, France
| | - Abdelilah Wakkach
- Laboratoire de PhysioMédecine Moléculaire, CNRS, Nice, France.,Université Côte d'Azur, Nice, France
| | - Claudine Blin-Wakkach
- Laboratoire de PhysioMédecine Moléculaire, CNRS, Nice, France.,Université Côte d'Azur, Nice, France
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164
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Chen X, Zhang Z, Hu Y, Cui J, Zhi X, Li X, Jiang H, Wang Y, Gu Z, Qiu Z, Dong X, Li Y, Su J. Lactulose Suppresses Osteoclastogenesis and Ameliorates Estrogen Deficiency-Induced Bone Loss in Mice. Aging Dis 2020; 11:629-641. [PMID: 32489707 PMCID: PMC7220299 DOI: 10.14336/ad.2019.0613] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 06/13/2019] [Indexed: 12/17/2022] Open
Abstract
Postmenopausal osteoporosis is characterized by excess osteoclastogenesis which leads to net bone loss and brittle fractures. Studies have demonstrated that estrogen deficiency-associated bone loss is microbiota-dependent and could be prevented by probiotics and prebiotics. In this study, we report that orally administered lactulose (20 g/kg, 6 weeks) orally administered significantly inhibited osteoclastogenesis, bone resorption, and prevented ovariectomy (OVX)-induced bone loss in mice. Lactulose increased intestinal Claudin 2, 3 and 15, compared to the OVX group, and lowered pro-osteoclastogenic cytokines levels including tumor necrosis factor-α, interleukin(IL)-6, receptor activator of nuclear factor kappa-Β ligand (RANKL), and IL-17 as well as increased the anti-inflammatory cytokine IL-10 in the intestine, peripheral blood, and bone marrow. Lactulose significantly preserved the number of Foxp3+ Treg cells in the intestines compared with that in OVX mice. Lactulose altered the composition of intestinal microbiota measured by 16s rDNA sequencing and increased intestinal and serum short-chain fatty acids (SCFAs) levels including acetate, propionate and butyrate which were decreased in OVX mice as measured by gas chromatography. Oral administration of lactulose for 2 weeks significantly lowered the level of bone resorption marker C-telopeptide of type 1 collagen-1 in healthy male young volunteers (aging 20-25 years). In conclusion, lactulose inhibited osteoclastogenesis and bone resorption by altering the intestinal microbiota and increasing SCFAs. Lactulose could serve as an ideal therapeutic agent for postmenopausal osteoporosis.
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Affiliation(s)
- Xiao Chen
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China.
| | - Zheng Zhang
- College of Basic Medicine, Second Military Medical University, Shanghai, China.
| | - Yan Hu
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China.
| | - Jin Cui
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China.
| | - Xin Zhi
- College of Basic Medicine, Second Military Medical University, Shanghai, China.
| | - Xiaoqun Li
- College of Basic Medicine, Second Military Medical University, Shanghai, China.
| | - Hao Jiang
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China.
| | - Yao Wang
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China.
| | - Zhengrong Gu
- Department of Orthopedics, Jing’ An District Centre Hospital of Shanghai Huashan Hospital, Fudan University, Shanghai, China.
| | - Zili Qiu
- Jinling high school, Nanjing, Jiangsu, China.
| | - Xin Dong
- School of Pharmacology, Second Military Medical University, Shanghai, China.
| | - Yuhong Li
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China.
| | - Jiacan Su
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China.
- College of Basic Medicine, Second Military Medical University, Shanghai, China.
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165
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A Follicle-Stimulating Hormone Exacerbates the Progression of Periapical Inflammation Through Modulating the Cytokine Release in Periodontal Tissue. Inflammation 2020; 43:1572-1585. [DOI: 10.1007/s10753-020-01234-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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166
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Zhou X, Wang Z, Ni Y, Yu Y, Wang G, Chen L. Suppression effect of N-acetylcysteine on bone loss in ovariectomized mice. Am J Transl Res 2020; 12:731-742. [PMID: 32269708 PMCID: PMC7137068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Accepted: 01/22/2020] [Indexed: 06/11/2023]
Abstract
Oxidative stress can trigger DNA damage response and activation of cellular senescence. Accumulating studies have demonstrated that senescent cells can produce senescence-associated secretory phenotype that leads to increased bone resorption and decreased bone formation. And elimination of senescent cells or inhibition of SASP secretion has been shown to prevent bone loss in mice. N-acetylcysteine (NAC) is a strong antioxidant. However, it is unclear whether reversed estrogen deficiency-induced bone loss by antioxidant NAC was associated with the inhibition of oxidative stress, DNA damage, osteocyte senescence and SASP. In this study, OVX mice were supplemented with/without E2 or NAC, and were compared with each other. Our results showed that oxidative stress, DNA damage, osteocyte senescence and the secretion of senescence-associated inflammatory cytokines were increased in OVX mice compared with sham-operated mice. However, these parameters were obviously rescued in OVX mice supplemented with E2 or NAC. Data from this study suggest that NAC can prevent OVX-induced bone loss by inhibiting oxidative stress, DNA damage, cell senescence and the secretion of the senescence-associated secretory phenotype.
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Affiliation(s)
- Xun Zhou
- Department of Basic Medical Sciences, Jiangsu College of NursingHuai’an 223005, Jiangsu, People’s Republic of China
| | - Zhengbo Wang
- Department of Anatomy, Histology and Embryology, The Research Center for Bone and Stem Cells, Nanjing Medical UniversityNanjing 210006, Jiangsu, People’s Republic of China
| | - Yihong Ni
- Department of Anatomy, Histology and Embryology, The Research Center for Bone and Stem Cells, Nanjing Medical UniversityNanjing 210006, Jiangsu, People’s Republic of China
| | - Yue Yu
- Suqian First HospitalSuqian 223800, Jiangsu, People’s Republic of China
| | - Guantong Wang
- Department of Orthopedics, Nanjing First Hospital, Nanjing Medical UniversityNanjing 210006, Jiangsu, People’s Republic of China
| | - Lulu Chen
- Department of Anatomy, Histology and Embryology, The Research Center for Bone and Stem Cells, Nanjing Medical UniversityNanjing 210006, Jiangsu, People’s Republic of China
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167
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Inhibition of osteogenic and adipogenic potential in bone marrow-derived mesenchymal stem cells under osteoporosis. Biochem Biophys Res Commun 2020; 525:902-908. [PMID: 32171528 DOI: 10.1016/j.bbrc.2020.03.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 03/05/2020] [Indexed: 02/01/2023]
Abstract
Osteoporosis, a prevalent systemic bone disease, has emerged as one of the most complicated health issues due to the risk of increased susceptibility to fractures. Bone-marrow mesenchymal stem cell (BMSC) has great potential of differentiating into several distinct cell types, including osteoblasts, adipocytes and chondrocytes. The present study analyzed the biological function changes of BMSCs under osteoporotic micro-environment and aimed to find a specific mechanism associated with this condition. Female rats were assigned to two groups: sham operation (SHAM) group and ovariectomy (OVX) group. BMSCs were harvested and cultured in vitro after 3 months post-ovariectomy. Alamar-Blue test suggested a higher proliferation ability in SHAM group. The differentiation potential of BMSCs was verified through various assays in vitro. RT-PCR and western blot analysis further confirmed the lower osteogenic and adipogenic differentiation capacity in OVX group. Moreover, through the microarray analysis, we were stunned to find that Integrin Alpha-7 (ITGA7) may improve osteogenesis through phosphatidylinositol 3-kinase/Akt (PI3K/Akt) signaling pathway. Overall, our study showed that osteoporosis inhibited the proliferation and differentiation of BMSCs, especially the osteogenesis and adipogenesis. Meanwhile, modulation of ITGA7 expression through PI3K/Akt signaling pathway might provide a new therapeutic target for osteoporosis.
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168
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Constanze B, Popper B, Aggarwal BB, Shakibaei M. Evidence that TNF-β suppresses osteoblast differentiation of mesenchymal stem cells and resveratrol reverses it through modulation of NF-κB, Sirt1 and Runx2. Cell Tissue Res 2020; 381:83-98. [PMID: 32140928 DOI: 10.1007/s00441-020-03188-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 02/13/2020] [Indexed: 12/16/2022]
Abstract
It has been established that inflammation plays an important role in bone formation and bone loss. Although a lot is known about the role of TNF-α in bone health, very little is understood about TNF-β, also called lymphotoxin. In this report, we examine the effect of TNF-β on osteogenic differentiation of mesenchymal stem cells (MSCs) and its modulation by resveratrol. Monolayer and high-density cultures of MSCs were treated with osteogenic induction medium with/without TNF-β, Sirt1 inhibitor nicotinamide (NAM), antisense oligonucleotides against Sirt1 (ASO) and/or Sirt1 stimulator resveratrol. We found that TNF-β inhibits, in a similar way to NAM or Sirt1-ASO, the early stage of osteogenic differentiation of MSCs and this was accompanied with downregulation of bone-specific matrix, β1-integrin, Runx2 and with upregulation of NF-κB phosphorylation and NF-κB-regulated gene products involved in the inflammatory, degradative processes and apoptosis. However, resveratrol reversed TNF-β- and NAM-suppressed MSCs osteogenesis by activation of Sirt1 and Runx2 that led to osteoblast differentiation. Furthermore, downregulation of Sirt1 by mRNA inhibited the effect of resveratrol, highlighting the important impact of this enzyme in the TNF-β signaling pathway. Finally, resveratrol was able to manifest its effect both by suppression of TNF-β-induced NF-κB and through direct activation of the Sirt1 and Runx2 pathway. Thus, through these studies, we present a mechanism by which a T cell-derived cytokine, TNF-β can affect bone formation through modulation of MSCs differentiation that involves NF-κB, Sirt1, Runx2 and resveratrol reversed TNF-β-promoted impairments in MSCs osteogenesis.
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Affiliation(s)
- Buhrmann Constanze
- Musculoskeletal Research Group and Tumour Biology, Chair of Vegetative Anatomy, Faculty of Medicine, Institute of Anatomy, Ludwig-Maximilian-University Munich, Pettenkoferstrasse 11, 80336, Munich, Germany
| | - Bastian Popper
- Biomedical Center, Core facility animal models, Ludwig-Maximilian-University Munich, 82152, Martinsried, Germany.,Institute of Pathology, School of Medicine, Technical University of Munich, 81675, Munich, Germany
| | | | - Mehdi Shakibaei
- Musculoskeletal Research Group and Tumour Biology, Chair of Vegetative Anatomy, Faculty of Medicine, Institute of Anatomy, Ludwig-Maximilian-University Munich, Pettenkoferstrasse 11, 80336, Munich, Germany.
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169
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Shen G, Ren H, Shang Q, Zhang Z, Zhao W, Yu X, Tang J, Yang Z, Liang D, Jiang X. miR-128 plays a critical role in murine osteoclastogenesis and estrogen deficiency-induced bone loss. Am J Cancer Res 2020; 10:4334-4348. [PMID: 32292498 PMCID: PMC7150474 DOI: 10.7150/thno.42982] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 02/17/2020] [Indexed: 12/26/2022] Open
Abstract
Postmenopausal osteoporosis (PMOP) is a severe health issue faced by postmenopausal women. microRNA-128 (miR-128) is associated with aging, inflammatory signaling, and inflammatory diseases, such as PMOP. It has also been reported to modulate in vitro osteogenic/adipogenic differentiation. However, its function in osteoclast formation is unknown. Methods: First, the expression of miR-128 and nuclear factor of activated T cells 1 (Nfatc1, bone resorption master marker) was investigated in bone tissues derived from PMOP patients, while their correlation to each other was also investigated. The levels of miR-128 and Nfatc1 in bone specimens and bone marrow-derived macrophages (BMMs) from mice subjected to ovariectomy (OVX) were also assayed. Next, we employed mice BMMs modified for overexpression and inhibition of miR-128 levels to determine its effect on osteoclast differentiation. Moreover, we generated osteoclastic miR-128 conditional knockout (miR-128Oc-/-) mice and isolated miR-128 deletion-BMMs to observe its biological function on bone phenotype and osteoclastogenesis in vivo, respectively. The miR-128Oc-/- BMMs were used to explore the downstream regulatory mechanisms using pull-down, luciferase reporter, and western-blotting assays. Finally, the impact of miR-128 deficiency on OVX-induced bone loss in mice was evaluated. Results: The miR-128 level was found to be positively correlated with the increase in Nfatc1 level in mouse/human bone specimens and mouse primary BMMs. In vitro experiments demonstrated miR-128 levels that were dependent on activity of osteoclast differentiation and miR-128 overexpression or inhibition in BMMs significantly increased or decreased osteoclastogenesis, respectively. In vivo, we revealed that osteoclastic miR-128 deletion remarkedly increased bone mass through the inhibition of osteoclastogenesis. Mechanistically, we identified sirtuin 1 (SIRT1) as the direct target of miR-128 at the post-transcriptional level during osteoclast differentiation. Increased levels of SIRT1 reduced nuclear factor κB (NF-κB) activity by decreasing the level of acetylation of Lysine 310, as well as inhibiting tumor necrosis factor-α (Tnf-α) and interleukin 1 (IL-1) expressions. Lastly, osteoclastic deletion of miR-128 significantly suppressed OVX-triggered osteoclastogenesis and exerted a protective effect against bone loss in mice. Conclusions: Our findings reveal a critical mechanism for osteoclastogenesis that is mediated by the miR-128/SIRT1/NF-κB signaling axis, highlighting a possible avenue for the further exploration of diagnostic and therapeutic target molecules in PMOP.
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170
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Brunetti G, Storlino G, Oranger A, Colaianni G, Faienza MF, Ingravallo G, Di Comite M, Reseland JE, Celi M, Tarantino U, Passeri G, Ware CF, Grano M, Colucci S. LIGHT/TNFSF14 regulates estrogen deficiency-induced bone loss. J Pathol 2020; 250:440-451. [PMID: 31990039 DOI: 10.1002/path.5385] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 12/24/2019] [Accepted: 01/15/2020] [Indexed: 12/30/2022]
Abstract
Bone loss induced by ovariectomy is due to the direct activity on bone cells and mesenchymal cells and to the dysregulated activity of bone marrow cells, including immune cells and stromal cells, but the underlying mechanisms are not completely known. Here, we demonstrate that ovariectomy induces the T-cell co-stimulatory cytokine LIGHT, which stimulates both osteoblastogenesis and osteoclastogenesis by modulating osteoclastogenic cytokine expression, including TNF, osteoprotegerin, and the receptor activator of nuclear factor-κB ligand (RANKL). Predictably, LIGHT-deficient (Tnfsf14-/- ) mice are protected from ovariectomy-dependent bone loss, whereas trabecular bone mass increases in mice deficient in both LIGHT and T and B lymphocytes (Rag -/- Tnfsf14 -/- ) and is associated with an inversion of the TNF and RANKL/OPG ratio. Furthermore, women with postmenopausal osteoporosis display high levels of LIGHT in circulating T cells and monocytes. Taken together, these results indicate that LIGHT mediates bone loss induced by ovariectomy, suggesting that patients with postmenopausal osteoporosis may benefit from LIGHT antagonism. © 2020 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Giacomina Brunetti
- Department of Basic and Medical Sciences, Neurosciences and Sense Organs, Section of Human Anatomy and Histology, University of Bari, Bari, Italy
| | - Giuseppina Storlino
- Department of Emergency and Organ Transplantation, Section of Human Anatomy and Histology, University of Bari, Bari, Italy
| | - Angela Oranger
- Department of Emergency and Organ Transplantation, Section of Human Anatomy and Histology, University of Bari, Bari, Italy
| | - Graziana Colaianni
- Department of Emergency and Organ Transplantation, Section of Human Anatomy and Histology, University of Bari, Bari, Italy
| | - Maria F Faienza
- Department of Biomedical Science and Human Oncology, Paediatric Unit, University of Bari, Bari, Italy
| | - Giuseppe Ingravallo
- Department of Emergency and Organ Transplantation, Pathology Section, University of Bari, Bari, Italy
| | - Mariasevera Di Comite
- Department of Basic and Medical Sciences, Neurosciences and Sense Organs, Section of Human Anatomy and Histology, University of Bari, Bari, Italy
| | - Janne E Reseland
- Department of Biomaterials, Institute for Clinical Dentistry, University of Oslo, Blindern, Oslo, Norway
| | - Monica Celi
- Department of Orthopedics and Traumatology, Tor Vergata University of Rome, Rome, Italy
| | - Umberto Tarantino
- Department of Orthopedics and Traumatology, Tor Vergata University of Rome, Rome, Italy
| | - Giovanni Passeri
- Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy
| | - Carl F Ware
- Laboratory of Molecular Immunology, Infectious and Inflammatory Disease Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California, USA
| | - Maria Grano
- Department of Emergency and Organ Transplantation, Section of Human Anatomy and Histology, University of Bari, Bari, Italy
| | - Silvia Colucci
- Department of Basic and Medical Sciences, Neurosciences and Sense Organs, Section of Human Anatomy and Histology, University of Bari, Bari, Italy
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171
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Yoon JA, Lee YJ, Lee BJ, Kim IJ, Kim SJ, Pak K, Jeon YK, Kim JH, Kim JM, Kim K, Jun Shin M, Shin YB. Evaluation of changes in body composition and proinflammatory marker levels in ovariectomized rats with induced hyperthyroidism. ALL LIFE 2020. [DOI: 10.1080/26895293.2020.1727966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Affiliation(s)
- Jin A Yoon
- Department of Rehabilitation Medicine, Pusan National University School of Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - Young Joo Lee
- Department of Obstetrics and Gynecology, Biomedical Research Institute Pusan National University School of Medicine, Busan, Republic of Korea
| | - Byung-Joo Lee
- Department of Otorhinolaryngology – Head and Neck Surgery, Pusan National University School of Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - In-Joo Kim
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - Seong-Jang Kim
- Department of Nuclear Medicine and BioMedical Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Kyoungjune Pak
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - Yun Kyung Jeon
- Department of Internal Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - Jeong Hun Kim
- Pusan National University Medical Research Institute, Pusan National University School of Medicine, Pusan National University, Busan, Republic of Korea
| | - Ji Min Kim
- Pusan National University Medical Research Institute, Pusan National University School of Medicine, Pusan National University, Busan, Republic of Korea
| | - Keunyoung Kim
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - Myung Jun Shin
- Department of Rehabilitation Medicine, Pusan National University School of Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - Yong Beom Shin
- Department of Rehabilitation Medicine, Pusan National University School of Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
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172
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Liang Y, Li W, Li X, Nan J. Involvement of PI3K/Akt/β-catenin signaling in schisandrin B-mitigated bone deterioration in an experimental rat model of estrogen deficiency. Arch Med Sci 2020; 19:1520-1529. [PMID: 37732059 PMCID: PMC10507775 DOI: 10.5114/aoms.2020.92873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 10/02/2019] [Indexed: 09/22/2023] Open
Abstract
Introduction Schisandrin B (SchB) has been reported to perform a wide range of biological functions, including antioxidant activity, anti-inflammatory activity and stimulation of osteoblast proliferation. However, the function and mechanism of SchB in ovariectomy (OVX)-induced osteoporosis are still unknown. The present study was designed to investigate the anti-osteoporotic activity of SchB in an experimental rat model of estrogen deficiency, which is usually used to mimic human postmenopausal osteoporosis (PMO). Material and methods OVX rats were orally treated with low (10 mg/kg) or high (50 mg/kg) doses of SchB for 8 weeks. Bone metabolism-related markers were measured by ELISA. The levels of protein expression were determined by western blotting analysis. Hematoxylin and eosin (H&E) and safranin O staining were performed to analyze trabecular bone and cartilage degeneration. Tartrate-resistant acid phosphatase (TRAP) staining was used to evaluate osteoclast differentiation. Results SchB administration markedly increased serum Ca levels and bone Ca content and decreased urinary calcium excretion in OVX-operated rats. In addition, high-dosage SchB treatment blocked osteoclastogenesis and improved trabecular bone and cartilage degeneration in the tibia of OVX-operated rats. Furthermore, high-dosage SchB treatment dramatically elevated the protein expression of phospho-PI3K, phospho-Akt and β-catenin in OVX-operated rats. Conclusions SchB exerted anti-osteoporotic activity in OVX-operated rats by accelerating the phosphorylation of PI3K and Akt, subsequently upregulating the expression of β-catenin.
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Affiliation(s)
- Yimin Liang
- Department of Orthopedics, The First People’s Hospital of Taizhou, Taizhou, China
| | - Wei Li
- The Second Clinical School of North Sichuan Medical College, Nanchong, China
| | - Xiang Li
- Department of Orthopedics, The First People’s Hospital of Taizhou, Taizhou, China
| | - Jun Nan
- Department of Spine Surgery, Affiliated Hospital of Yanbian University, Yanji, China
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173
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Li J, Chen X, Lu L, Yu X. The relationship between bone marrow adipose tissue and bone metabolism in postmenopausal osteoporosis. Cytokine Growth Factor Rev 2020; 52:88-98. [PMID: 32081538 DOI: 10.1016/j.cytogfr.2020.02.003] [Citation(s) in RCA: 97] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 02/06/2020] [Accepted: 02/06/2020] [Indexed: 02/06/2023]
Abstract
Postmenopausal osteoporosis (PMOP) is a prevalent skeletal disorder associated with menopause-related estrogen withdrawal. PMOP is characterized by low bone mass, deterioration of the skeletal microarchitecture, and subsequent increased susceptibility to fragility fractures, thus contributing to disability and mortality. Accumulating evidence indicates that abnormal expansion of marrow adipose tissue (MAT) plays a crucial role in the onset and progression of PMOP, in part because both bone marrow adipocytes and osteoblasts share a common ancestor lineage. The cohabitation of MAT adipocytes, mesenchymal stromal cells, hematopoietic cells, osteoblasts and osteoclasts in the bone marrow creates a microenvironment that permits adipocytes to act directly on other cell types in the marrow. Furthermore, MAT, which is recognized as an endocrine organ, regulates bone remodeling through the secretion of adipokines and cytokines. Although an enhanced MAT volume is linked to low bone mass and fractures in PMOP, the detailed interactions between MAT and bone metabolism remain largely unknown. In this review, we examine the possible mechanisms of MAT expansion under estrogen withdrawal and further summarize emerging findings regarding the pathological roles of MAT in bone remodeling. We also discuss the current therapies targeting MAT in osteoporosis. A comprehensive understanding of the relationship between MAT expansion and bone metabolism in estrogen deficiency conditions will provide new insights into potential therapeutic targets for PMOP.
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Affiliation(s)
- Jiao Li
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology and Metabolism, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xiang Chen
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology and Metabolism, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Lingyun Lu
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology and Metabolism, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, China; Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Xijie Yu
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology and Metabolism, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, China.
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174
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Kim JM, Lee WS, Kim J. Therapeutic strategy for atherosclerosis based on bone-vascular axis hypothesis. Pharmacol Ther 2020; 206:107436. [DOI: 10.1016/j.pharmthera.2019.107436] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/04/2019] [Indexed: 12/19/2022]
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175
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Kim GJ, Kim D, Lee KJ, Kim D, Chung KH, Choi JW, An JH. Effect of Nano-Montmorillonite on Osteoblast Differentiation, Mineral Density, and Osteoclast Differentiation in Bone Formation. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E230. [PMID: 32013042 PMCID: PMC7075198 DOI: 10.3390/nano10020230] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 01/19/2020] [Accepted: 01/26/2020] [Indexed: 12/14/2022]
Abstract
Calcium-type montmorillonite, a phyllosilicate mineral, has diverse health benefits when introduced into the gastrointestinal tract or applied to the skin. However, the predominant use of this layered material has thus far been in traditional industries, despite its potential application in the pharmaceutical industry. We investigated the effects and mechanism of nano-montmorillonite (NM) on osteoblast and osteoclast differentiation in vivo and in vitro. We examined the osteogenic effects of NM with high calcium content (3.66 wt%) on alkaline phosphatase (ALP) activity, mineralization, bone microarchitecture, and expression level of osteoblast and osteoclast related genes in Ca-deficient ovariectomized (OVX) rats. Micro-computed tomography of OVX rats revealed that NM attenuated the low-Ca-associated changes in trabecular and cortical bone mineral density. It improved ALP activity and mineralization, as well as the expression of osteoblast and osteoclast differentiation associated genes. NM also activated the expression of runt-related transcription factor 2, osteocalcin, bone morphogenetic protein 2, and type 1 collagen via phosphorylated small mothers against decapentaplegic homolog 1/5/8 signaling. Further, NM repressed the expression of receptor activator for cathepsin K, nuclear factor kappa-B ligand and tartrate-resistant acid phosphatase. Therefore, NM inhibits osteoclastogenesis, stimulates osteoblastogenesis, and alleviates osteoporosis.
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Affiliation(s)
- Gyeong-Ji Kim
- Department of Food and Nutrition, KC University, Seoul 07661, Korea;
- Department of Biomedical Engineering, Sogang University, Seoul 04107, Korea
| | - Daniel Kim
- Advanced Geo-materials R&D Department, Pohang Branch, Korea Institute of Geoscience and Mineral Resources, Pohang 37559, Korea;
| | - Kwon-Jai Lee
- Department of Advanced Materials Engineering, Daejeon University, Daejeon 34520, Korea;
| | - Daeyoung Kim
- Department of Nanomaterials Science and Engineering, University of Science and Technology, Daejeon 34113, Korea;
| | - Kang-Hyun Chung
- Department of Food Science and Technology, Seoul National University of Science & Technology, Seoul 01811, Korea;
| | - Jeong Woo Choi
- Department of Biomedical Engineering, Sogang University, Seoul 04107, Korea
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107l, Korea
| | - Jeung Hee An
- Department of Food and Nutrition, KC University, Seoul 07661, Korea;
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176
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Enhancing Activity of Pleurotus sajor-caju (Fr.) Sing β-1,3-Glucanoligosaccharide ( Ps-GOS) on Proliferation, Differentiation, and Mineralization of MC3T3-E1 Cells through the Involvement of BMP-2/Runx2/MAPK/Wnt/β-Catenin Signaling Pathway. Biomolecules 2020; 10:biom10020190. [PMID: 32012654 PMCID: PMC7072289 DOI: 10.3390/biom10020190] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 01/24/2020] [Accepted: 01/24/2020] [Indexed: 12/21/2022] Open
Abstract
Osteoporosis is a leading world health problem that results from an imbalance between bone formation and bone resorption. β-glucans has been extensively reported to exhibit a wide range of biological activities, including antiosteoporosis both in vitro and in vivo. However, the molecular mechanisms responsible for β-glucan-mediated bone formation in osteoblasts have not yet been investigated. The oyster mushroom Pleurotus sajor-caju produces abundant amounts of an insoluble β-glucan, which is rendered soluble by enzymatic degradation using Hevea glucanase to generate low-molecular-weight glucanoligosaccharide (Ps-GOS). This study aimed to investigate the osteogenic enhancing activity and underlining molecular mechanism of Ps-GOS on osteoblastogenesis of pre-osteoblastic MC3T3-E1 cells. In this study, it was demonstrated for the first time that low concentrations of Ps-GOS could promote cell proliferation and division after 48 h of treatment. In addition, Ps-GOS upregulated the mRNA and protein expression level of bone morphogenetic protein-2 (BMP-2) and runt-related transcription factor-2 (Runx2), which are both involved in BMP signaling pathway, accompanied by increased alkaline phosphatase (ALP) activity and mineralization. Ps-GOS also upregulated the expression of osteogenesis related genes including ALP, collagen type 1 (COL1), and osteocalcin (OCN). Moreover, our novel findings suggest that Ps-GOS may exert its effects through the mitogen-activated protein kinase (MAPK) and wingless-type MMTV integration site (Wnt)/β-catenin signaling pathways.
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177
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Menopause-Associated Lipid Metabolic Disorders and Foods Beneficial for Postmenopausal Women. Nutrients 2020; 12:nu12010202. [PMID: 31941004 PMCID: PMC7019719 DOI: 10.3390/nu12010202] [Citation(s) in RCA: 178] [Impact Index Per Article: 44.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 12/19/2019] [Accepted: 01/07/2020] [Indexed: 12/12/2022] Open
Abstract
Menopause is clinically diagnosed as a condition when a woman has not menstruated for one year. During the menopausal transition period, there is an emergence of various lipid metabolic disorders due to hormonal changes, such as decreased levels of estrogens and increased levels of circulating androgens; these may lead to the development of metabolic syndromes including cardiovascular diseases and type 2 diabetes. Dysregulation of lipid metabolism affects the body fat mass, fat-free mass, fatty acid metabolism, and various aspects of energy metabolism, such as basal metabolic ratio, adiposity, and obesity. Moreover, menopause is also associated with alterations in the levels of various lipids circulating in the blood, such as lipoproteins, apolipoproteins, low-density lipoproteins (LDLs), high-density lipoproteins (HDL) and triacylglycerol (TG). Alterations in lipid metabolism and excessive adipose tissue play a key role in the synthesis of excess fatty acids, adipocytokines, proinflammatory cytokines, and reactive oxygen species, which cause lipid peroxidation and result in the development of insulin resistance, abdominal adiposity, and dyslipidemia. This review discusses dietary recommendations and beneficial compounds, such as vitamin D, omega-3 fatty acids, antioxidants, phytochemicals—and their food sources—to aid the management of abnormal lipid metabolism in postmenopausal women.
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178
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Perturbations of Lipids and Oxidized Phospholipids in Lipoproteins of Patients with Postmenopausal Osteoporosis Evaluated by Asymmetrical Flow Field-Flow Fractionation and Nanoflow UHPLC-ESI-MS/MS. Antioxidants (Basel) 2020; 9:antiox9010046. [PMID: 31948114 PMCID: PMC7022717 DOI: 10.3390/antiox9010046] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 12/31/2019] [Accepted: 01/03/2020] [Indexed: 12/22/2022] Open
Abstract
Osteoporosis, a degenerative bone disease characterized by reduced bone mass and high risk of fragility, is associated with the alteration of circulating lipids, especially oxidized phospholipids (Ox-PLs). This study evaluated the lipidomic changes in lipoproteins of patients with postmenopausal osteoporosis (PMOp) vs. postmenopausal healthy controls. High-density lipoproteins (HDL) and low-density lipoproteins (LDL) from plasma samples were size-sorted by asymmetrical flow field-flow fractionation (AF4). Lipids from each lipoprotein were analyzed by nanoflow ultrahigh performance liquid chromatography-electrospray ionization-tandem mass spectrometry (nUHPLC-ESI-MS/MS). A significant difference was observed in a subset of lipids, most of which were increased in patients with PMOp, when compared to control. Phosphatidylethanolamine plasmalogen, which plays an antioxidative role, was increased in both lipoproteins (P-16:0/20:4, P-18:0/20:4, and P-18:1/20:4) lysophosphatidic acid 16:0, and six phosphatidylcholines were largely increased in HDL, but triacylglycerols (50:4 and 54:6) and overall ceramide levels were significantly increased only in LDL of patients with PMOp. Further investigation of 33 Ox-PLs showed significant lipid oxidation in PLs with highly unsaturated acyl chains, which were decreased in LDL of patients with PMOp. The present study demonstrated that AF4 with nUHPLC-ESI-MS/MS can be utilized to systematically profile Ox-PLs in the LDL of patients with PMOp.
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179
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Hu B, Kong X, Li L, Dai F, Zhang Q, Shi R. Integrative Analyses of Genes Associated With Osteoporosis in CD16+ Monocyte. Front Endocrinol (Lausanne) 2020; 11:581878. [PMID: 33551990 PMCID: PMC7859337 DOI: 10.3389/fendo.2020.581878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 12/02/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Osteoporosis is a metabolic bone disease characterized by decreased bone mineral density and abnormal bone quality. Monocytes can secret cytokines for bone resorption, resulting in bone mass loss. However, the mechanism by which monocytes subpopulations lead to osteoporosis remains unclear. The aim of this study was to identify genes associated with osteoporosis in monocytes subsets. METHODS Three microarray datasets including GSE7158 (transcription of low/high-peak bone mass), GSE101489 (transcription of CD16+/CD16- monocyte) and GSE93883 (miRNA expression profile of primary osteoporosis) were derived from the Gene Expression Omnibus (GEO) database and analyzed with GEO2R tool to identify differentially expressed genes (DEGs). Functional enrichment was analyzed using Metascape database and GSEA software. STRING was utilized for the Protein-Protein Interaction Network construct. The hub genes were screened out using the Cytoscape software. Related miRNAs were predicted in miRWalk, miRDB, and TargetScan databases. RESULTS Total 368 DEGs from GSE7158 were screened out, which were mostly enriched in signaling, positive regulation of biological process and immune system process. The hub genes were clustered into two modules by PPI network analysis. We identified 15 overlapping DGEs between GSE101489 and GSE7158 microarray datasets. Moreover, all of them were up-regulated genes in both datasets. Then, nine key genes were screened out from above 15 overlapping DEGs using Cytoscape software. It is a remarkable fact that the nine genes were all in one hub gene module of GSE7158. Additionally, 183 target miRNAs were predicted according to the above nine DEGs. After cross-verification with miRNA express profile dataset for osteoporosis (GSE93883), 12 DEmiRNAs were selected. Finally, a miRNA-mRNA network was constructed with the nine key genes and 12 miRNAs, which were involved in osteoporosis. CONCLUSION Our analysis results constructed a gene expression framework in monocyte subsets for osteoporosis. This approach could provide a novel insight into osteoporosis.
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Affiliation(s)
- Bin Hu
- Department of Orthopedics, The Second People’s Hospital of Hefei, Hefei, China
| | - Xiangan Kong
- Department of Orthopedics, The Second People’s Hospital of Hefei, Hefei, China
| | - Li Li
- Department of Orthopedics, The Second People’s Hospital of Hefei, Hefei, China
| | - Fang Dai
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Qiu Zhang
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- *Correspondence: Ruifeng Shi, ; Qiu Zhang,
| | - Ruifeng Shi
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- *Correspondence: Ruifeng Shi, ; Qiu Zhang,
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180
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Zhi X, Wang L, Chen H, Fang C, Cui J, Hu Y, Cao L, Weng W, Zhou Q, Qin L, Song H, Wang Y, Wang Y, Jiang H, Li X, Wang S, Chen X, Su J. l-tetrahydropalmatine suppresses osteoclastogenesis in vivo and in vitro via blocking RANK-TRAF6 interactions and inhibiting NF-κB and MAPK pathways. J Cell Mol Med 2020; 24:785-798. [PMID: 31725199 PMCID: PMC6933417 DOI: 10.1111/jcmm.14790] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 09/10/2019] [Accepted: 09/23/2019] [Indexed: 02/06/2023] Open
Abstract
Bone homeostasis is delicately orchestrated by osteoblasts and osteoclasts. Various pathological bone loss situations result from the overactivated osteoclastogenesis. Receptor activator of nuclear factor κB ligand (RANKL)-activated NF-κB and MAPK pathways is vital for osteoclastogenesis. Here, we for the first time explored the effects of l-tetrahydropalmatine (l-THP), an active alkaloid derived from corydalis, on the formation and function of osteoclasts in vitro and in vivo. In RAW264.7 cells and bone marrow monocytes cells (BMMCs), l-THP inhibited osteoclastic differentiation at the early stage, down-regulated transcription level of osteoclastogenesis-related genes and impaired osteoclasts functions. Mechanically, Western blot showed that l-THP inhibited the phosphorylation of P50, P65, IκB, ERK, JNK and P38, and the electrophoretic mobility shift assay (EMSA) revealed that DNA binding activity of NF-κB was suppressed, ultimately inhibiting the expression of nuclear factor of activated T cells (NFATc1). Besides, Co-immunoprecipitation indicated that l-THP blocked the interactions of RANK and TNF receptor associated factor 6 (TRAF6) at an upstream site. In vivo, l-THP significantly inhibited ovariectomy-induced bone loss and osteoclastogenesis in mice. Collectively, our study demonstrated that l-THP suppressed osteoclastogenesis by blocking RANK-TRAF6 interactions and inhibiting NF-κB and MAPK pathways. l-THP is a promising agent for treating osteoclastogenesis-related diseases such as post-menopausal osteoporosis.
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Affiliation(s)
- Xin Zhi
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
- Basic Medical School, Naval Military Medical University, Shanghai, China
| | - Lipeng Wang
- Graduate Management Unit, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Huiwen Chen
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Chao Fang
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Jin Cui
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Yan Hu
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Liehu Cao
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Weizong Weng
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Qirong Zhou
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Longjuan Qin
- Orthopedic Basic and Translational Research Center, Jiangyin, China
| | - Hongyuan Song
- Department of Ophthalmology, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Yajun Wang
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Yao Wang
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Hao Jiang
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Xiaoqun Li
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
- Basic Medical School, Naval Military Medical University, Shanghai, China
| | - Sicheng Wang
- Department of Orthopedics, Shanghai Zhongye Hospital, Shanghai, China
| | - Xiao Chen
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
- Department of Chemistry, Fudan University, Shanghai, China
| | - Jiacan Su
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
- China-South Korea Bioengineering Center, Shanghai, China
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181
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Tao Z, Wang J, Wen K, Yao R, Da W, Zhou S, Meng Y, Qiu S, Yang K, Zhu Y, Tao L. Pyroptosis in Osteoblasts: A Novel Hypothesis Underlying the Pathogenesis of Osteoporosis. Front Endocrinol (Lausanne) 2020; 11:548812. [PMID: 33488513 PMCID: PMC7821870 DOI: 10.3389/fendo.2020.548812] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 11/24/2020] [Indexed: 12/16/2022] Open
Abstract
Osteoporosis has become a worldwide disease characterized by a reduction in bone mineral density and the alteration of bone architecture leading to an increased risk of fragility fractures. And an increasing number of studies have indicated that osteoblasts undergo a large number of programmed death events by many different causes in osteoporosis and release NLRP3 and interleukin (e.g., inflammatory factors), which play pivotal roles in contributing to excessive differentiation of osteoclasts and result in exaggerated bone resorption. NLRP3 is activated during pyroptosis and processes the precursors of IL-1β and IL-18 into mature forms, which are released into the extracellular milieu accompanied by cell rupture. All of these compounds are the classical factors of pyroptosis. The cellular effects of pyroptosis are commonly observed in osteoporosis. Although many previous studies have focused on the pathogenesis of these inflammatory factors in osteoporosis, pyroptosis has not been previously evaluated. In this review, pyroptosis is proposed as a novel hypothesis of osteoporosis pathogenesis for the first time, thus providing a new direction for the treatment of osteoporosis in the future.
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Affiliation(s)
- Zhengbo Tao
- Department of Orthopaedics, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Jinpeng Wang
- Department of Orthopaedics, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Kaicheng Wen
- Department of Orthopaedics, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Renqi Yao
- Department of Burn Surgery, Changhai Hospital, the Naval Medical University, Shanghai, China
| | - Wacili Da
- Department of Orthopaedics, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Siming Zhou
- Department of Orthopaedics, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yan Meng
- Department of Orthopaedics, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Shui Qiu
- Department of Orthopaedics, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Keda Yang
- Department of Orthopaedics, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yue Zhu
- Department of Orthopaedics, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Lin Tao
- Department of Orthopaedics, First Affiliated Hospital of China Medical University, Shenyang, China
- *Correspondence: Lin Tao,
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Abstract
PURPOSE OF REVIEW The goal of the review is to assess the appropriateness of menopausal hormone therapy (MHT) for the primary prevention of bone loss in women at elevated risk in the early years after menopause. RECENT FINDINGS Estrogen alone or combined with progestin to protect the uterus from cancer significantly reduces the risk of osteoporosis-related fractures. MHT increases type 1 collagen production and osteoblast survival and maintains the equilibrium between bone resorption and bone formation by modulating osteoblast/osteocyte and T cell regulation of osteoclasts. Estrogens have positive effects on muscle and cartilage. Estrogen, but not antiresorptive therapies, can attenuate the inflammatory bone-microenvironment associated with estrogen deficiency. However, already on second year of administration, MHT is associated with excess breast cancer risk, increasing steadily with duration of use. MHT should be considered in women with premature estrogen deficiency and increased risk of bone loss and osteoporotic fractures. However, MHT use for the prevention of bone loss is hindered by increase in breast cancer risk even in women younger than 60 years old or who are within 10 years of menopause onset.
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Affiliation(s)
- Jan J Stepan
- Institute of Rheumatology, Prague, Czech Republic.
| | - Hana Hruskova
- Department of Obstetrics and Gynecology, First Faculty of Medicine, Prague, Czech Republic
- Charles University, Prague, Czech Republic
- General University Hospital in Prague, Prague, Czech Republic
| | - Miloslav Kverka
- Institute of Microbiology of the Czech Academy of Sciences, v.v.i., Prague, Czech Republic
- Institute of Experimental Medicine of the Czech Academy of Sciences, v.v.i., Prague, Czech Republic
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183
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Allison H, McNamara LM. Inhibition of osteoclastogenesis by mechanically stimulated osteoblasts is attenuated during estrogen deficiency. Am J Physiol Cell Physiol 2019; 317:C969-C982. [DOI: 10.1152/ajpcell.00168.2019] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Osteoporotic bone loss and fracture have long been regarded to arise upon depletion of circulating estrogen, which increases osteoclastogenesis and bone resorption. Osteoblasts from human osteoporotic patients also display deficient osteogenic responses to mechanical loading. However, while osteoblasts play an important role in regulating osteoclast differentiation, how this relationship is affected by estrogen deficiency is unknown. This study seeks to determine how mechanically stimulated osteoblasts regulate osteoclast differentiation and matrix degradation under estrogen deficiency. Here, we report that osteoblast-induced osteoclast differentiation (indicated by tartrate-resistant acid phosphatase, cathepsin K, and nuclear factor of activated T cells, cytoplasmic 1) and matrix degradation were inhibited by estrogen treatment and mechanical loading. However, estrogen-deficient osteoblasts exacerbated osteoclast formation and matrix degradation in conditioned medium and coculture experiments. This was accompanied by higher expression of cyclooxygenase-2 and macrophage colony-stimulating factor, but not osteoprotegerin, by osteoblasts under estrogen deficiency. Interestingly, this response was exacerbated under conditions that block the Rho-Rho-associated protein kinase signaling pathway. This study provides an important, but previously unrecognized, insight into bone loss in postmenopausal osteoporosis, whereby estrogen-deficient osteoblasts fail to produce inhibitory osteoprotegerin after mechanical stimulation but upregulate macrophage colony-stimulating factor and cyclooxygenase-2 expression and, thus, leave osteoclast activity unconstrained.
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Affiliation(s)
- H. Allison
- Mechanobiology and Medical Devices Research Group, Centre for Biomechanics Research, Biomedical Engineering, College of Engineering and Informatics, National University of Ireland, Galway, Ireland
| | - L. M. McNamara
- Mechanobiology and Medical Devices Research Group, Centre for Biomechanics Research, Biomedical Engineering, College of Engineering and Informatics, National University of Ireland, Galway, Ireland
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184
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Factors Associated with Tooth Loss in Postmenopausal Women: A Community-Based Cross-Sectional Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16203945. [PMID: 31623275 PMCID: PMC6843320 DOI: 10.3390/ijerph16203945] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/10/2019] [Accepted: 10/16/2019] [Indexed: 12/17/2022]
Abstract
Many studies have indicated that menopause affects periodontal health and tooth loss. The possible mechanism might due to several hormonal changes and low bone mineral density (BMD) during the transition period. However, few studies have explored the role of oral hygiene in the number of remaining teeth (NRT) in postmenopausal women (PMW). The aim of this study was to explore the prevalence of and factors associated with NRT less than 20 in PMW. A community-based, cross-sectional study was conducted in coastal Yunlin County, Taiwan. NRT was calculated based on natural and filled teeth. BMD was detected by dual-energy X-ray absorptiometry at the collaborating hospital. Logistic regression analyses were used to identify the factors associated with NRT in rural PMW. Six hundred and ten rural PMW with mean age 65.4 years enrolled in this study. The mean NRT was 17.6 (standard deviation [SD] = 10.4), with 43.9% having <20 and 13.9% edentulous. More than half (65.9%) reported that they seldom brushed their teeth after meals, 79.2% rarely used dental floss, and 80% did not regularly undergo tooth scaling by a dentist. The majority of women had low BMD, including 48.7% with osteopenia and 20.7% with osteoporosis. After adjusting for potentially confounding variables, NRT <20 was associated with infrequent tooth scaling (odds ratio [OR] = 2.78, 95% confidence interval [CI] = 1.70–4.56) and dental floss use (OR = 2.01, 95% CI = 1.24–3.26), but not BMD. A high prevalence of NRT <20 was found among rural PMW, but poor oral hygiene rather than low BMD was the major contributing factor. It is an emerging issue for primary healthcare providers and clinicians to initiate oral hygiene promotion programs for these disadvantaged women.
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185
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Potential Therapeutic Application of Estrogen in Gender Disparity of Nonalcoholic Fatty Liver Disease/Nonalcoholic Steatohepatitis. Cells 2019; 8:cells8101259. [PMID: 31619023 PMCID: PMC6835656 DOI: 10.3390/cells8101259] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 10/10/2019] [Accepted: 10/12/2019] [Indexed: 02/07/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) caused by fat accumulation in the liver is globally the most common cause of chronic liver disease. Simple steatosis can progress to nonalcoholic steatohepatitis (NASH), a more severe form of NAFLD. The most potent driver for NASH is hepatocyte death induced by lipotoxicity, which triggers inflammation and fibrosis, leading to cirrhosis and/or liver cancer. Despite the significant burden of NAFLD, there is no therapy for NAFLD/NASH. Accumulating evidence indicates gender-related NAFLD progression. A higher incidence of NAFLD is found in men and postmenopausal women than premenopausal women, and the experimental results, showing protective actions of estradiol in liver diseases, suggest that estrogen, as the main female hormone, is associated with the progression of NAFLD/NASH. However, the mechanism explaining the functions of estrogen in NAFLD remains unclear because of the lack of reliable animal models for NASH, the imbalance between the sexes in animal experiments, and subsequent insufficient results. Herein, we reviewed the pathogenesis of NAFLD/NASH focused on gender and proposed a feasible association of estradiol with NAFLD/NASH based on the findings reported thus far. This review would help to expand our knowledge of the gender differences in NAFLD and for developing gender-based treatment strategies for NAFLD/NASH.
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186
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Wong SK, Chin KY, Ima-Nirwana S. The Osteoprotective Effects Of Kaempferol: The Evidence From In Vivo And In Vitro Studies. DRUG DESIGN DEVELOPMENT AND THERAPY 2019; 13:3497-3514. [PMID: 31631974 PMCID: PMC6789172 DOI: 10.2147/dddt.s227738] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Accepted: 09/12/2019] [Indexed: 01/06/2023]
Abstract
Kaempferol is a dietary bioflavonoid ubiquitously found in various types of plant. It possesses a wide range of medicinal properties suggesting its potential clinical utility that requires further investigation. The present review intends to highlight the efficacy of kaempferol and its molecular mechanisms of action in regulating bone metabolism. Many reports have acknowledged the bone-protecting property of kaempferol and kaempferol-containing plants using in vitro and in vivo experimental models. Kaempferol supplementation showed bone-sparing effects in newborn rats, glucocorticoid-induced and ovariectomy-induced osteoporotic models as well as bone fracture models. It achieves the bone-protective effects by inhibiting adipogenesis, inflammation, oxidative stress, osteoclastic autophagy and osteoblastic apoptosis while activating osteoblastic autophagy. The anti-osteoporotic effects of kaempferol are mediated through regulation of estrogen receptor, bone morphogenetic protein-2 (BMP-2), nuclear factor-kappa B (NF-κB), mitogen-activated protein kinase (MAPK) and mammalian target of rapamycin (mTOR) signaling pathways. In summary, kaempferol exhibits beneficial effects on skeleton, thus is potentially effective for the prophylaxis and treatment of osteoporosis.
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Affiliation(s)
- Sok Kuan Wong
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Kok-Yong Chin
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Soelaiman Ima-Nirwana
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Silva RAB, Sousa‐Pereira AP, Lucisano MP, Romualdo PC, Paula‐Silva FWG, Consolaro A, Silva LAB, Nelson‐Filho P. Alendronate inhibits osteocyte apoptosis and inflammation via
IL
‐6, inhibiting bone resorption in periapical lesions of ovariectomized rats. Int Endod J 2019; 53:84-96. [DOI: 10.1111/iej.13206] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 08/16/2019] [Indexed: 01/29/2023]
Affiliation(s)
- R. A. B. Silva
- Department of Pediatric Dentistry School of Dentistry of Ribeirão Preto University of São Paulo Ribeirão Preto Brazil
| | | | - M. P. Lucisano
- Department of Pediatric Dentistry School of Dentistry of Ribeirão Preto University of São Paulo Ribeirão Preto Brazil
| | - P. C. Romualdo
- Department of Pediatric Dentistry School of Dentistry of Ribeirão Preto University of São Paulo Ribeirão Preto Brazil
| | - F. W. G. Paula‐Silva
- Department of Pediatric Dentistry School of Dentistry of Ribeirão Preto University of São Paulo Ribeirão Preto Brazil
| | - A. Consolaro
- Department of Stomatology Bauru School of Dentistry University of São Paulo Bauru Brazil
| | - L. A. B. Silva
- Department of Pediatric Dentistry School of Dentistry of Ribeirão Preto University of São Paulo Ribeirão Preto Brazil
| | - P. Nelson‐Filho
- Department of Pediatric Dentistry School of Dentistry of Ribeirão Preto University of São Paulo Ribeirão Preto Brazil
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188
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Alippe Y, Mbalaviele G. Omnipresence of inflammasome activities in inflammatory bone diseases. Semin Immunopathol 2019; 41:607-618. [PMID: 31520179 PMCID: PMC6814643 DOI: 10.1007/s00281-019-00753-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 08/29/2019] [Indexed: 12/17/2022]
Abstract
The inflammasomes are intracellular protein complexes that are assembled in response to a variety of perturbations including infections and injuries. Failure of the inflammasomes to rapidly clear the insults or restore tissue homeostasis can result in chronic inflammation. Recurring inflammation is also provoked by mutations that cause the constitutive assembly of the components of these protein platforms. Evidence suggests that chronic inflammation is a shared mechanism in bone loss associated with aging, dysregulated metabolism, autoinflammatory, and autoimmune diseases. Mechanistically, inflammatory mediators promote bone resorption while suppressing bone formation, an imbalance which over time leads to bone loss and increased fracture risk. Thus, while acute inflammation is important for the maintenance of bone integrity, its chronic state damages this tissue. In this review, we discuss the role of the inflammasomes in inflammation-induced osteolysis.
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Affiliation(s)
- Yael Alippe
- Division of Bone and Mineral Diseases, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8301, St. Louis, MO, 63110, USA
| | - Gabriel Mbalaviele
- Division of Bone and Mineral Diseases, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8301, St. Louis, MO, 63110, USA.
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189
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Arsic A, Pesic G, Petrovic S, Matic A, Jeremic J, Jakovljevic V, Vucic V. Adverse plasma fatty acid composition in patients with femoral neck fracture 1. Can J Physiol Pharmacol 2019; 98:61-66. [PMID: 31491342 DOI: 10.1139/cjpp-2019-0249] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Our study aimed to examine the status of plasma fatty acids (FAs), inflammatory markers, and lipid peroxidation in patients with femoral neck fractures. The study included 20 patients (64-86 years) with femoral neck fractures indicated for surgery and a control group of 17 elderly subjects without fractures or serious chronic diseases. Plasma was obtained during the first 12 h postfracture and presurgery and 7 days postop. Compared to the control, patients had significantly higher saturated FA (SFA) and monounsaturated FA as well as increased TNF-α and IL-6. Opposite to that, levels of individual and total n-6 polyunsaturated FA (PUFA), individual and total n-3 PUFA, n-6/n-3 ratio, and levels of thiobarbituric acid reactive substances (TBARS) were markedly lower in the patient than in the controls. On the seventh day after the surgery, we showed a further rise in the SFA, oleic acid, and TNF-α and reductions of n-6 PUFA and IL-6. Taken together, our results suggest that altered FA status, especially reduced PUFA, may influence hip fracture repair and even contribute to femoral fracture susceptibility in the elderly. A potential benefit from nutritional intervention with PUFA in prevention and (or) fracture healing should be considered.
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Affiliation(s)
- Aleksandra Arsic
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Goran Pesic
- Orthopedic and Traumatology Clinic, Podgorica, Montenegro
| | - Snjezana Petrovic
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Aleksandar Matic
- Clinic of Orthopedic Surgery, Clinical Centre of Kragujevac, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Jovana Jeremic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Vladimir Jakovljevic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Vesna Vucic
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
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190
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Qi S, He J, Han H, Zheng H, Jiang H, Hu CY, Zhang Z, Li X. Anthocyanin-rich extract from black rice (Oryza sativa L. Japonica) ameliorates diabetic osteoporosis in rats. Food Funct 2019; 10:5350-5360. [PMID: 31393485 DOI: 10.1039/c9fo00681h] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Diabetic osteoporosis (DOP) is a systemic endocrine-metabolic osteopathy which has the characteristics of bone mineral density (BMD) reduction and bone microstructural destruction. Although anthocyanin-rich extract from black rice (AEBR) was reported to have a beneficial effect on diabetic rats, no studies have been performed on whether black rice anthocyanins are beneficial for diabetic osteoporosis. Therefore, in this study, a streptozotocin-induced diabetic rat model was established to investigate the protective effect of AEBR on diabetes-induced osteoporosis and its possible mechanism. AEBR at three doses (0.5, 1.0, and 2.0 g kg-1 d-1) were administered by oral gavage to diabetic rats for 8 weeks. The blood glucose, BMD, bone histomorphometry parameters, serum bone turnover biomarkers, bone marrow adipocyte numbers, as well as osteoprotegerin (OPG), runt-related transcription factor 2 (RUNX 2), and receptor activator of nuclear factor-κ B ligand (RANKL) protein expression in bone and serum were detected. The results indicated that AEBR dose-dependently decreased the blood glucose, increased the BMD, and decreased the serum bone turnover markers. The bone microstructure and osteoclast numbers in bone tissues returned to normal in the high AEBR dosage group; at the same time, the AEBR dose-dependently suppressed bone marrow adipogenesis. The RUNX 2 as well as the OPG/RANKL ratio in diabetic rats' bone tissues increased significantly in the AEBR treatment group. Our results indicate that AEBR administration can ameliorate bone loss caused by diabetes; this is mainly attributed to its inhibition of bone turnover, suppression of bone marrow adipogenesis, and up-regulation of RUNX 2 and the OPG/RANKL expression ratio.
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Affiliation(s)
- Shanshan Qi
- Vitamin D Research Institute, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China. and Shaanxi Black Organic Food Engineering Center, Hanzhong 723000, Shaanxi, China
| | - Jia He
- Vitamin D Research Institute, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China.
| | - Hao Han
- Shaanxi Provincial Bio-resource key Laboratory, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China.
| | - Hongxing Zheng
- Shaanxi Provincial Bio-resource key Laboratory, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China. and Shaanxi Black Organic Food Engineering Center, Hanzhong 723000, Shaanxi, China
| | - Hai Jiang
- Vitamin D Research Institute, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China.
| | - Ching Yuan Hu
- Shaanxi Provincial Bio-resource key Laboratory, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China.
| | - Zhijian Zhang
- Vitamin D Research Institute, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China. and Shaanxi Black Organic Food Engineering Center, Hanzhong 723000, Shaanxi, China
| | - Xinsheng Li
- Shaanxi Provincial Bio-resource key Laboratory, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China.
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191
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Exendin-4 regulates Wnt and NF-κB signaling in lipopolysaccharide-induced human periodontal ligament stem cells to promote osteogenic differentiation. Int Immunopharmacol 2019; 75:105801. [PMID: 31401384 DOI: 10.1016/j.intimp.2019.105801] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 07/12/2019] [Accepted: 07/31/2019] [Indexed: 11/24/2022]
Abstract
A major feature of chronic periodontitis (CP) is the damage and destruction of alveolar bone. Periodontal ligament stem cells (PDLSCs) can differentiate into bone and improve CP. Exendin-4 (Ex-4) has been shown to have anti-inflammatory mechanisms and can promote bone regeneration. However, the effects of Ex-4 on the osteogenic differentiation of PDLSCs in the inflammatory microenvironment remains uncharacterized. In this study, we assessed the effects of Ex-4 on PDLSCs stimulated with lipopolysaccharide (LPS) to mimic the inflammatory environment. PDLSCs proliferation was assessed through CCK-8 assays and osteogenic differentiation was measured using Alizarin Red staining. The anti-inflammatory and osteogenic mechanisms of Ex-4 were assessed by western blot, RT-PCR, ELISA and immunofluorescence. We found that LPS treatment promoted the proliferative capacity of PDLSCs and inhibited their osteogenic differentiation. However, Ex-4 reversed these effects through suppressing PDLSCs proliferation and promoting osteogenic differentiation. Ex-4 increased Runx2, ALP, and Osx levels and decreased TNF-α and IL-6 expression. Ex-4 also reduced the expression of IκBα and p-IκBα, and inhibited the nuclear translocation of NF-κB/p65. The expression of β-catenin decreased in nucleus after co-treatment of Ex-4 with LPS. Taken together, these data demonstrate that Ex-4 promotes PDLSCs osteogenic differentiation in the inflammatory microenvironment through regulating NF-κB and Wnt signaling.
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192
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Farr JN, Rowsey JL, Eckhardt BA, Thicke BS, Fraser DG, Tchkonia T, Kirkland JL, Monroe DG, Khosla S. Independent Roles of Estrogen Deficiency and Cellular Senescence in the Pathogenesis of Osteoporosis: Evidence in Young Adult Mice and Older Humans. J Bone Miner Res 2019; 34:1407-1418. [PMID: 30913313 PMCID: PMC6697189 DOI: 10.1002/jbmr.3729] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 02/27/2019] [Accepted: 03/15/2019] [Indexed: 11/10/2022]
Abstract
Estrogen deficiency is a seminal mechanism in the pathogenesis of osteoporosis. Mounting evidence, however, establishes that cellular senescence, a fundamental mechanism that drives multiple age-related diseases, also causes osteoporosis. Recently, we systematically identified an accumulation of senescent cells, characterized by increased p16Ink4a and p21Cip1 levels and development of a senescence-associated secretory phenotype (SASP), in mouse bone/marrow and human bone with aging. We then demonstrated that elimination of senescent cells prevented age-related bone loss using multiple approaches, eg, treating old mice expressing a "suicide" transgene, INK-ATTAC, with AP20187 to induce apoptosis of p16Ink4a -senescent cells or periodically treating old wild-type mice with "senolytics," ie, drugs that eliminate senescent cells. Here, we investigate a possible role for estrogen in the regulation of cellular senescence using multiple approaches. First, sex steroid deficiency 2 months after ovariectomy (OVX, n = 15) or orchidectomy (ORCH, n = 15) versus sham surgery (SHAM, n = 15/sex) in young adult (4-month-old) wild-type mice did not alter senescence biomarkers or induce a SASP in bone. Next, in elderly postmenopausal women, 3 weeks of estrogen therapy (n = 10; 74 ± 5 years) compared with no treatment (n = 10; 78 ± 5 years) did not alter senescence biomarkers or the SASP in human bone biopsies. Finally, young adult (4-month-old) female INK-ATTAC mice were randomized (n = 17/group) to SHAM+Vehicle, OVX+Vehicle, or OVX+AP20187 for 2 months. As anticipated, OVX+Vehicle caused significant trabecular/cortical bone loss compared with SHAM+Vehicle. However, treatment with AP20187, which eliminates senescent cells in INK-ATTAC mice, did not rescue the OVX-induced bone loss or alter senescence biomarkers. Collectively, our data establish independent roles of estrogen deficiency and cellular senescence in the pathogenesis of osteoporosis, which has important implications for testing novel senolytics for skeletal efficacy, as these drugs will need to be evaluated in preclinical models of aging as opposed to the current FDA model of prevention of OVX-induced bone loss. © 2019 American Society for Bone and Mineral Research.
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Affiliation(s)
- Joshua N Farr
- Robert and Arlene Kogod Center on Aging and Division of Endocrinology, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Jennifer L Rowsey
- Robert and Arlene Kogod Center on Aging and Division of Endocrinology, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Brittany A Eckhardt
- Robert and Arlene Kogod Center on Aging and Division of Endocrinology, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Brianne S Thicke
- Robert and Arlene Kogod Center on Aging and Division of Endocrinology, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Daniel G Fraser
- Robert and Arlene Kogod Center on Aging and Division of Endocrinology, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Tamar Tchkonia
- Robert and Arlene Kogod Center on Aging and Division of Endocrinology, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - James L Kirkland
- Robert and Arlene Kogod Center on Aging and Division of Endocrinology, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - David G Monroe
- Robert and Arlene Kogod Center on Aging and Division of Endocrinology, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Sundeep Khosla
- Robert and Arlene Kogod Center on Aging and Division of Endocrinology, Mayo Clinic College of Medicine, Rochester, MN, USA
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193
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Shih YRV, Liu M, Kwon SK, Iida M, Gong Y, Sangaj N, Varghese S. Dysregulation of ectonucleotidase-mediated extracellular adenosine during postmenopausal bone loss. SCIENCE ADVANCES 2019; 5:eaax1387. [PMID: 31457100 PMCID: PMC6703860 DOI: 10.1126/sciadv.aax1387] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 07/12/2019] [Indexed: 05/25/2023]
Abstract
Adenosine and its receptors play a key role in bone homeostasis and regeneration. Extracellular adenosine is generated from CD39 and CD73 activity in the cell membrane, through conversion of adenosine triphosphate to adenosine monophosphate (AMP) and AMP to adenosine, respectively. Despite the relevance of CD39/CD73 to bone health, the roles of these enzymes in bona fide skeletal disorders remain unknown. We demonstrate that CD39/CD73 expression and extracellular adenosine levels in the bone marrow are substantially decreased in animals with osteoporotic bone loss. Knockdown of estrogen receptors ESR1 and ESR2 in primary osteoprogenitors and osteoclasts undergoing differentiation showed decreased coexpression of membrane-bound CD39 and CD73 and lower extracellular adenosine. Targeting the adenosine A2B receptor using an agonist attenuated bone loss in ovariectomized mice. Together, these findings suggest a pathological association of purine metabolism with estrogen deficiency and highlight the potential of A2B receptor as a target to treat osteoporosis.
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Affiliation(s)
- Yu-Ru V. Shih
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC 27710, USA
| | - Mengqian Liu
- Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
| | - Seong Keun Kwon
- Department of Otorhinolaryngology–Head and Neck Surgery, Seoul National University Hospital, Seoul 03080, Republic of Korea
| | | | - Ya Gong
- Department of Bioengineering, University of California, San Diego, La Jolla, CA 92093, USA
| | - Nivedita Sangaj
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC 27710, USA
| | - Shyni Varghese
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC 27710, USA
- Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA
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194
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Behera J, Tyagi SC, Tyagi N. Role of hydrogen sulfide in the musculoskeletal system. Bone 2019; 124:33-39. [PMID: 30928641 PMCID: PMC6570498 DOI: 10.1016/j.bone.2019.03.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 03/26/2019] [Accepted: 03/26/2019] [Indexed: 01/09/2023]
Abstract
Hydrogen sulfide (H2S) has been known as a gasotransmitter, and it contributes to various physiological and pathological processes. Multiple enzymes such as cystathionine-β-synthase (CBS), cystathionine-γ-lyase (CSE) and 3-Mercaptopyruvate sulfurtransferase (MST) produce endogenous H2S, and these are differentially expressed in the various tissue systems including the skeletal system. However, abnormal H2S production is associated with deregulation of the signaling cascade and imbalanced tissue homeostasis. Several studies have previously provided evidence showing the essential regulatory action of H2S in skeletal homeostasis. In this review, we have emphasized the novel function of H2S in both bone and skeletal muscle anabolism, in particular. Additionally, we also reviewed the molecular and epigenetic basis of H2S signaling in bone development and skeletal muscle function.
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Affiliation(s)
- Jyotirmaya Behera
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA
| | - Suresh C Tyagi
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA
| | - Neetu Tyagi
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA.
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195
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Rice Porridge Containing Welsh Onion Root Water Extract Alleviates Osteoarthritis-Related Pain Behaviors, Glucose Levels, and Bone Metabolism in Osteoarthritis-Induced Ovariectomized Rats. Nutrients 2019; 11:nu11071503. [PMID: 31262076 PMCID: PMC6683264 DOI: 10.3390/nu11071503] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 06/26/2019] [Accepted: 06/29/2019] [Indexed: 01/24/2023] Open
Abstract
Rice porridge containing Allium fistulosum (Welsh onion) root water extract (RAFR) has anti-inflammatory bioactive compounds. We examined whether the long-term administration of rice porridge with RAFR would prevent or delay the progression of osteoarthritis and menopausal symptoms in estrogen-deficient animals by ovariectomy. The rats consumed 40% fat energy diets containing 250 mg RAFR (rice: Allium fistulosum root = 13:1)/kg body weight (bw) (OVX-OA-RAFR-Low), 750 mg RAFR/kg bw (OVX-OA-RAFR-High) and 750 mg starch and protein/kg bw(OVX), respectively. After consuming the assigned diets for eight weeks, monoiodoacetate (OVX-OA) or saline (OVX) were injected into the knee joints of the rats for an additional three weeks. Sham rats were administered saline injections (normal-control). OVX-OA-RAFR improved oral glucose tolerance and also protected against decreases in bone mineral density and lean body mass in the legs and increases in fat mass in the abdomen, compared to the OVX and OVX-OA. OVX-OA-RAFR improved swelling and limping scores, normalized weight distribution between the osteoarthritic and normal limbs, and increased maximum running speeds compared to the OVX-OA. The OVX-OA deteriorated the articular cartilage by reducing the articular matrix and bone loss in the knee joint and it prevented knee joint deterioration when compared to the OVX. The improvement in osteoarthritis symptoms in OVX-OA-RAFR decreased the mRNA expression of matrix metallo-proteinase-1 and matrix metalloproteinase-13, tumor necrosis factor-α, and interleukin-1β and interleukin-6 in the articular cartilage compared to OVX-OA rats. In conclusions, RAFR is effective in treating osteoarthritis symptoms and it may be used for a therapeutic agent in osteoarthritis-induced menopausal women.
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196
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Li J, Ayoub A, Xiu Y, Yin X, Sanders JO, Mesfin A, Xing L, Yao Z, Boyce BF. TGFβ-induced degradation of TRAF3 in mesenchymal progenitor cells causes age-related osteoporosis. Nat Commun 2019; 10:2795. [PMID: 31243287 PMCID: PMC6595054 DOI: 10.1038/s41467-019-10677-0] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 05/22/2019] [Indexed: 01/08/2023] Open
Abstract
Inflammaging induces osteoporosis by promoting bone destruction and inhibiting bone formation. TRAF3 limits bone destruction by inhibiting RANKL-induced NF-κB signaling in osteoclast precursors. However, the role of TRAF3 in mesenchymal progenitor cells (MPCs) is unknown. Mice with TRAF3 deleted in MPCs develop early onset osteoporosis due to reduced bone formation and enhanced bone destruction. In young mice TRAF3 prevents β-catenin degradation in MPCs and maintains osteoblast formation. However, TRAF3 protein levels decrease in murine and human bone samples during aging when TGFβ1 is released from resorbing bone. TGFβ1 induces degradation of TRAF3 in murine MPCs and inhibits osteoblast formation through GSK-3β-mediated degradation of β-catenin. Thus, TRAF3 positively regulates MPC differentiation into osteoblasts. TRAF3 deletion in MPCs activated NF-κB RelA and RelB to promote RANKL expression and enhance bone destruction. We conclude that pharmacologic stabilization of TRAF3 during aging could treat/prevent age-related osteoporosis by inhibiting bone destruction and promoting bone formation.
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Affiliation(s)
- Jinbo Li
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Akram Ayoub
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Yan Xiu
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
- Department of Pathology, University of Iowa, Iowa City, IA, 52242, USA
| | - Xiaoxiang Yin
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
- Department of Medical Imaging, Henan University First Affiliated Hospital, 357 Ximen Street, Kaifeng, 475001, Henan, P.R. China
| | - James O Sanders
- Department of Orthopaedics and Rehabilitation Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
- Department of Orthopaedics, University of North Carolina, Chapel Hill, NC, 27514, USA
| | - Addisu Mesfin
- Department of Orthopaedics and Rehabilitation Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Lianping Xing
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Zhenqiang Yao
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA.
| | - Brendan F Boyce
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA.
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197
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Kushwaha P, Ahmad N, Dhar YV, Verma A, Haldar S, Mulani FA, Trivedi PK, Mishra PR, Thulasiram HV, Trivedi R. Estrogen receptor activation in response to Azadirachtin A stimulates osteoblast differentiation and bone formation in mice. J Cell Physiol 2019; 234:23719-23735. [DOI: 10.1002/jcp.28940] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Revised: 05/15/2019] [Accepted: 05/22/2019] [Indexed: 12/23/2022]
Affiliation(s)
| | - Naseer Ahmad
- Endocrinology CSIR‐Central Drug Research Institute Lucknow India
| | - Yogeshwar V. Dhar
- Molecular Biology and Biotechnology CSIR‐National Botanical Research Institute Lucknow India
| | - Ashwni Verma
- Pharmaceutics Division CSIR‐Central Drug Research Institute Lucknow India
| | - Saikat Haldar
- Organic Chemistry Division CSIR‐National Chemical Laboratory Pune India
| | - Fayaj A. Mulani
- Organic Chemistry Division CSIR‐National Chemical Laboratory Pune India
| | - Prabodh K. Trivedi
- Molecular Biology and Biotechnology CSIR‐National Botanical Research Institute Lucknow India
| | - Prabhat R. Mishra
- Pharmaceutics Division CSIR‐Central Drug Research Institute Lucknow India
| | | | - Ritu Trivedi
- Endocrinology CSIR‐Central Drug Research Institute Lucknow India
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198
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Lu SH, Hsia YJ, Shih KC, Chou TC. Fucoidan Prevents RANKL-Stimulated Osteoclastogenesis and LPS-Induced Inflammatory Bone Loss via Regulation of Akt/GSK3β/PTEN/NFATc1 Signaling Pathway and Calcineurin Activity. Mar Drugs 2019; 17:E345. [PMID: 31185702 PMCID: PMC6627629 DOI: 10.3390/md17060345] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 06/04/2019] [Accepted: 06/05/2019] [Indexed: 02/04/2023] Open
Abstract
Excessive osteoclast differentiation and/or function plays a pivotal role in the pathogenesis of bone diseases such as osteoporosis and rheumatoid arthritis. Here, we examined whether fucoidan, a sulfated polysaccharide present in brown algae, attenuates receptor activator of nuclear factor-κB ligand (RANKL)-stimulated osteoclastogenesis in vitro and lipopolysaccharide (LPS)-induced bone resorption in vivo, and investigated the molecular mechanisms involved. Our results indicated that fucoidan significantly inhibited osteoclast differentiation in RANKL-stimulated macrophages and the bone resorbing activity of osteoclasts. The effects of fucoidan may be mediated by regulation of Akt/GSK3β/PTEN signaling and suppression of the increase in intracellular Ca2+ level and calcineurin activity, thereby inhibiting the translocation of nuclear factor-activated T cells c1 (NFATc1) into the nucleus. However, fucoidan-mediated NFATc1 inactivation was greatly reversed by kenpaullone, a GSK3β inhibitor. In addition, using microcomputer tomography (micro-CT) scanning and bone histomorphometry, we found that fucoidan treatment markedly prevented LPS-induced bone erosion in mice. Collectively, we demonstrated that fucoidan was capable of inhibiting osteoclast differentiation and inflammatory bone loss, which may be modulated by regulation of Akt/GSK3β/PTEN/NFATc1 and Ca2+/calcineurin signaling cascades. These findings suggest that fucoidan may be a potential agent for the treatment of osteoclast-related bone diseases.
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Affiliation(s)
- Sheng-Hua Lu
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei 114, Taiwan.
| | - Yi-Jan Hsia
- Dental Department and Devision of Oral and Maxillofacial Surgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 23142, Taiwan.
| | - Kuang-Chung Shih
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan.
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Cheng-Hsin General Hospital, Taipei 112, Taiwan.
| | - Tz-Chong Chou
- Department of Biotechnology, Asia University, Taichung 413, Taiwan.
- China Medical University Hospital, China Medical University, Taichung 400, Taiwan.
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei 114, Taiwan.
- Department of Pharmacology, National Defense Medical Center, Taipei 114, Taiwan.
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Controlling hypoxia-inducible factor-2α is critical for maintaining bone homeostasis in mice. Bone Res 2019; 7:14. [PMID: 31098335 PMCID: PMC6513851 DOI: 10.1038/s41413-019-0054-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Revised: 04/08/2019] [Accepted: 04/11/2019] [Indexed: 12/17/2022] Open
Abstract
Pathological bone loss is caused by an imbalance between bone formation and resorption. The bone microenvironments are hypoxic, and hypoxia-inducible factor (HIF) is known to play notable roles in bone remodeling. However, the relevant functions of HIF-2α are not well understood. Here, we have shown that HIF-2α deficiency in mice enhances bone mass through its effects on the differentiation of osteoblasts and osteoclasts. In vitro analyses revealed that HIF-2α inhibits osteoblast differentiation by targeting Twist2 and stimulates RANKL-induced osteoclastogenesis via regulation of Traf6. In addition, HIF-2α appears to contribute to the crosstalk between osteoblasts and osteoclasts by directly targeting RANKL in osteoprogenitor cells. Experiments performed with osteoblast- and osteoclast-specific conditional knockout mice supported a role of HIF-2α in this crosstalk. HIF-2α deficiency alleviated ovariectomy-induced bone loss in mice, and specific inhibition of HIF-2α with ZINC04179524 significantly blocked RANKL-mediated osteoclastogenesis. Collectively, our results suggest that HIF-2α functions as a catabolic regulator in bone remodeling, which is critical for the maintenance of bone homeostasis.
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Engineering of L-Plastin Peptide-Loaded Biodegradable Nanoparticles for Sustained Delivery and Suppression of Osteoclast Function In Vitro. Int J Cell Biol 2019; 2019:6943986. [PMID: 31191656 PMCID: PMC6525930 DOI: 10.1155/2019/6943986] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 04/09/2019] [Accepted: 04/15/2019] [Indexed: 12/15/2022] Open
Abstract
We have recently demonstrated that a small molecular weight amino-terminal peptide of L-plastin (10 amino acids; “MARGSVSDEE”) suppressed the phosphorylation of endogenous L-plastin. Therefore, the formation of nascent sealing zones (NSZs) and bone resorption are reduced. The aim of this study was to develop a biodegradable and biocompatible PLGA nanocarrier that could be loaded with the L-plastin peptide of interest and determine the efficacy in vitro in osteoclast cultures. L-plastin MARGSVSDEE (P1) and scrambled control (P3) peptide-loaded PLGA-PEG nanoparticles (NP1 and NP3, respectively) were synthesized by double emulsion technique. The biological effect of nanoparticles on osteoclasts was evaluated by immunoprecipitation, immunoblotting, rhodamine-phalloidin staining of actin filaments, and pit forming assays. Physical characterization of well-dispersed NP1 and NP3 demonstrated ~130-150 nm size, < 0.07 polydispersity index, ~-3 mV ζ-potential, and a sustained release of the peptide for three weeks. Biological characterization in osteoclast cultures demonstrated the following: NP1 significantly reduced (a) endogenous L-plastin phosphorylation; (b) formation of NSZs and sealing rings; (c) resorption. However, the assembly of podosomes which are critical for cell adhesion was not affected. L-plastin peptide-loaded PLGA-PEG nanocarriers have promising potential for the treatment of diseases associated with bone loss. Future studies will use this sustained release of peptide strategy to systematically suppress osteoclast bone resorption activity in vivo in mouse models demonstrating bone loss.
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