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Kim M, Park M. The Brown Algae Ishige sinicola Extract Ameliorates Ovariectomy-Induced Bone Loss in Rats and Suppresses Osteoclastogenesis through Downregulation of NFATc1/c-Fos. Nutrients 2022; 14:1683. [PMID: 35565651 PMCID: PMC9104637 DOI: 10.3390/nu14091683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/12/2022] [Accepted: 04/14/2022] [Indexed: 11/16/2022] Open
Abstract
Osteoporosis is characterized by reduction in bone mass and microarchitectural deterioration of the bone, which causes bone fragility and fracture susceptibility. Ishige sinicola, a brown alga, reportedly affects osteoblast differentiation. However, its protective effect on estrogen deficiency-induced bone loss has not been elucidated. This study aimed to investigate the effect of I. sinicola extract (ISE) on ovariectomy (OVX)-induced bone loss in vivo and osteoclastogenesis in vitro. Female Sprague-Dawley rats were randomly assigned to the sham-operated (SHAM) group and four OVX subgroups: SHAM, OVX, ISE20 (20 mg/kg), ISE200 (200 mg/kg), and estradiol (10 μg/kg). After 6 weeks of treatment, the bone mineral density (BMD), femur indices, and serum biomarker levels were measured. Furthermore, the effects of ISE on osteoclastogenesis and the expression of osteoclast-specific markers were measured. ISE administration improved the trabecular bone structure, bone biomechanical properties, BMD, and bone mineralization degree. In addition, the levels of serum bone turnover markers were decreased in the ISE group compared with those in the OVX group. Moreover, ISE inhibited osteoclast formation by downregulating NFATc1, TRAP, c-Src, c-Fos, and cathepsin K without any cytotoxic effects on RANKL-induced osteoclast formation. Therefore, we suggest that ISE has therapeutic potential in postmenopausal osteoporosis.
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Affiliation(s)
| | - Mihwa Park
- Department of Food and Nutrition, College of Health and Welfare, Silla University, Busan 46958, Korea;
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2
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Cui M, Zhang N, Zhang G, Han L, Yu LZ. Investigation of Intravenous Zoledronic Acid Therapy on Circulating Lymphocyte Subpopulation in Patients with Primary Osteoporosis: A Pilot Study. CURRENT THERAPEUTIC RESEARCH 2021; 94:100634. [PMID: 34306272 PMCID: PMC8296081 DOI: 10.1016/j.curtheres.2021.100634] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 04/24/2021] [Indexed: 11/03/2022]
Abstract
BACKGROUND Several studies have investigated the immunomodulating properties of zoledronic acid on T lymphocytes, but the causal relationship between the function of T cells and the efficacy of zoledronic acid has not been elucidated. OBJECTIVE To investigate the causal relationship between the function of zoledronic acid and T cells. METHODS We conducted an observational perspective study to observe the effect of intravenous zoledronic acid once yearly for 2 years on lymphocyte subsets in patients with primary osteoporosis through observing the blood cells analysis and the level of lymphocyte subpopulations before and on day 1, 2, and 3 after first and second administration of intravenous zoledronic acid and bone mineral destiny 1 year after a single administration of zoledronic acid. RESULTS White blood cell count and neutrophils increased, whereas lymphocytes and eosinophils decreased after the first and second zoledronic acid infusion. The count of CD3+T cells, CD3+CD4+T cells, and CD16+CD56+ natural killer lymphocytes decreased from day 1 to day 3 after the first and second zoledronic acid infusion, but the results of second infusion showed no significance. CONCLUSIONS Further, larger size, more in-depth studies are indicated to examine whether the short-term changes in white blood cells and lymphocyte subtypes noted after 2 once-yearly zoledronic acid injections in this small population of adult patients is associated with the stimulation of immune mechanisms. (Curr Ther Res Clin Exp. 2021; 82:XXX-XXX).
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Affiliation(s)
- Min Cui
- Department of Pain Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Na Zhang
- Department of Pain Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Gang Zhang
- Department of Pain Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Lei Han
- Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Ling Zhi Yu
- Department of Pain Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
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3
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Ge L, Cui Y, Liu B, Yin X, Pang J, Han J. ERα and Wnt/β‑catenin signaling pathways are involved in angelicin‑dependent promotion of osteogenesis. Mol Med Rep 2019; 19:3469-3476. [PMID: 30864714 PMCID: PMC6472132 DOI: 10.3892/mmr.2019.9999] [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: 07/04/2018] [Accepted: 02/20/2019] [Indexed: 01/08/2023] Open
Abstract
Reports of the ameliorative effect of angelicin on sex hormone deficiency-induced osteoporosis have highlighted this compound as a candidate for the treatment of osteoporosis. However, the molecular mechanisms of action of angelicin on osteoblast differentiation have not been thoroughly researched. The aim of the present study was to evaluate the effect of angelicin on the proliferation, differentiation and mineralization of rat calvarial osteoblasts using a Cell Counting Kit-8, alkaline phosphatase activity and the expression of osteogenic genes and proteins. Treatment with angelicin promoted the proliferation, matrix mineralization and upregulation of osteogenic marker genes including collagen type I α 1 and bone γ-carboxyglutamate in fetal rat calvarial osteoblasts. Furthermore, angelicin promoted the expression of β-catenin and runt related transcription factor 2, which serve a vital role in the Wnt/β-catenin signaling pathway. Consistently, the osteogenic effect of angelicin was attenuated by the use of a Wnt inhibitor. Moreover, angelicin increased the expression of estrogen receptor α (ERα), which also serves a key role in osteoblast differentiation. Taken together, these results demonstrated that angelicin may promote osteoblast differentiation through activation of ERα and the Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Luna Ge
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China
| | - Yazhou Cui
- Key Laboratory for Rare and Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Center, Shandong Academy of Medical Sciences, Jinan, Shandong 250062, P.R. China
| | - Baoyan Liu
- School of Medicine and Life Sciences, University of Jinan, Shandong Academy of Medical Sciences, Jinan, Shandong 250062, P.R. China
| | - Xiaoli Yin
- Key Laboratory for Rare and Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Center, Shandong Academy of Medical Sciences, Jinan, Shandong 250062, P.R. China
| | - Jingxiang Pang
- Key Laboratory for Rare and Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Center, Shandong Academy of Medical Sciences, Jinan, Shandong 250062, P.R. China
| | - Jinxiang Han
- Key Laboratory for Rare and Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Center, Shandong Academy of Medical Sciences, Jinan, Shandong 250062, P.R. China
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4
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Lechner J, Rudi T, von Baehr V. Osteoimmunology of tumor necrosis factor-alpha, IL-6, and RANTES/CCL5: a review of known and poorly understood inflammatory patterns in osteonecrosis. Clin Cosmet Investig Dent 2018; 10:251-262. [PMID: 30519117 PMCID: PMC6233471 DOI: 10.2147/ccide.s184498] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background The immune and bone systems are closely linked via cytokine cross-talk. This interdisciplinary field of research is referred to as osteoimmunology and pertains to inflammatory and osteoarticular diseases that feature the primary expression of tumor necrosis factor-alpha (TNF-α) and IL-6. Objective Are there bone resorptive processes wherein chronic inflammatory conditions are not linked to TNF-α and IL-6 expression, but rather to the expression of other cytokines? Materials and methods A comprehensive literature search was performed in PubMed Central. Discussion Although all diseases with cytokines involved in bone resorption (TNF-α and IL-6) are at the forefront of destructive inflammatory processes, there is one exception in the literature: fatty oxide osteoporosis/osteolysis in the jawbone (FDOJ), which is associated with significant bone softening. However, it should be noted that TNF-α and IL-6 fall below the levels found in a healthy jawbone in this condition. Another conspicuous finding is that there is a nearly 35-fold overexpression of the chemokine RANTES/CCL5 (R/C) in all FDOJ cases studied thus far in the literature. Conclusion FDOJ appears to represent a unique cytokine and inflammatory pattern from osteolysis in the body. R/C can be defined as the dominant carrier of a “maxillomandibular osteoimmunology”.
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Affiliation(s)
- Johann Lechner
- Clinic for Integrative Dentistry, Munich 81547, Germany,
| | - Tatjana Rudi
- Institute for Epidemiological Studies, Berlin 10709, Germany
| | - Volker von Baehr
- Department of Immunology and Allergology, Institute for Medical Diagnostics in MVZ GbR, Berlin 12247, Germany
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5
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Awasthi H, Mani D, Singh D, Gupta A. The underlying pathophysiology and therapeutic approaches for osteoporosis. Med Res Rev 2018; 38:2024-2057. [DOI: 10.1002/med.21504] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 02/28/2018] [Accepted: 04/04/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Harshika Awasthi
- Herbal Medicinal Products Department; CSIR-Central Institute of Medicinal and Aromatic Plants; Lucknow India
| | - Dayanandan Mani
- Herbal Medicinal Products Department; CSIR-Central Institute of Medicinal and Aromatic Plants; Lucknow India
| | - Divya Singh
- Division of Endocrinology; CSIR-Central Drug Research Institute; Lucknow India
| | - Atul Gupta
- Medicinal Chemistry Department; CSIR-Central Institute of Medicinal and Aromatic Plants; Lucknow India
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6
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Rothmann MJ, Jakobsen PR, Jensen CM, Hermann AP, Smith AC, Clemensen J. Experiences of being diagnosed with osteoporosis: a meta-synthesis. Arch Osteoporos 2018; 13:21. [PMID: 29511831 DOI: 10.1007/s11657-018-0436-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 02/15/2018] [Indexed: 02/03/2023]
Abstract
UNLABELLED This systematic review provides synthesised knowledge and guidance to health professionals on the experiences and perspectives of being diagnosed with osteoporosis from the patient's point of view. Using individuals' experiences and meanings can promote tailored and targeted information and guidance on osteoporosis, bone care and treatment at different stages of the osteoporosis trajectory. INTRODUCTION To be diagnosed with osteoporosis with or without fragility fractures affects individuals differently. The aim of this review was firstly to aggregate existing qualitative evidence regarding an individual's experience of being diagnosed with osteoporosis at different stages, and secondly, to use a systematic approach to develop a conceptual understanding of central issues relevant for health professionals in order to provide support and guidance to patients/individuals. METHODS This study used a systematic review methodology and methods for qualitative synthesis as recommended by Cochrane and integrated the findings of qualitative research from eight databases (Medline, PubMed, CINAHL, Embase, SweMed+, PsycINFO, ERIC, Web of Science) to July 2016. Selection and assessment were performed by three authors while four authors were involved in the analysis. Findings were cross-checked with the original article to ensure consistency with the individual's accounts. RESULTS Our findings have revealed that individuals diagnosed with osteoporosis do not perceive osteoporosis as a biomedical trajectory but as a self-perceived continuum of severity and health. To be diagnosed with osteoporosis affects individuals differently depending on, for example, personal experience, pre-conceived notions of or knowledge about the disease, fragility fractures or pain. Hence, individuals will create a meaning of the diagnosis based on self-perceived fracture risk, self-perceived severity of osteoporosis and at the same time, self-perceived health. CONCLUSIONS This meta-synthesis provides knowledge for health professionals on the experiences and perspectives of being diagnosed with osteoporosis from the patient's point of view. The experience, meaning and significance of osteoporosis must be taken into consideration and can be used to promote tailored and targeted information and guidance on osteoporosis, bone care and treatment at different stages of the osteoporosis trajectory.
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Affiliation(s)
- M J Rothmann
- Department of Endocrinology, Odense University Hospital, Kloevervaenget 6, 8.sal, 5000, Odense C, Denmark. .,Department of Rheumatology, Odense University Hospital, Odense, Denmark. .,Department of Clinical Research, University of Southern Denmark, Odense, Denmark. .,Centre for Innovative Medical Technology, University of Southern Denmark & Odense University Hospital, Odense, Denmark.
| | - P R Jakobsen
- Department of Endocrinology, Odense University Hospital, Kloevervaenget 6, 8.sal, 5000, Odense C, Denmark.,Department of Clinical Research, University of Southern Denmark, Odense, Denmark.,Centre for Innovative Medical Technology, University of Southern Denmark & Odense University Hospital, Odense, Denmark
| | - C M Jensen
- Department of Clinical Research, University of Southern Denmark, Odense, Denmark.,Centre for Innovative Medical Technology, University of Southern Denmark & Odense University Hospital, Odense, Denmark.,Department of Orthopaedic Surgery and Traumatology, Odense University Hospital, Odense, Denmark
| | - A P Hermann
- Department of Endocrinology, Odense University Hospital, Kloevervaenget 6, 8.sal, 5000, Odense C, Denmark.,Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - A C Smith
- Centre for Innovative Medical Technology, University of Southern Denmark & Odense University Hospital, Odense, Denmark.,Centre for Online Health, University of Queensland, Brisbane, QLD, Australia
| | - J Clemensen
- Department of Clinical Research, University of Southern Denmark, Odense, Denmark.,Centre for Innovative Medical Technology, University of Southern Denmark & Odense University Hospital, Odense, Denmark
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7
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Liu T, Ding S, Yin D, Cuan X, Xie C, Xu H, Wang X, Sheng J. Pu-erh Tea Extract Ameliorates Ovariectomy-Induced Osteoporosis in Rats and Suppresses Osteoclastogenesis In Vitro. Front Pharmacol 2017; 8:324. [PMID: 28620304 PMCID: PMC5450042 DOI: 10.3389/fphar.2017.00324] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Accepted: 05/15/2017] [Indexed: 01/19/2023] Open
Abstract
Background and Objective: Tea drinking is associated with positive effects on bone health and may protect against osteoporosis, especially in elderly women. Pu-erh tea has many beneficial effects on human health; however, whether Pu-erh tea has anti-osteoporotic potential remains unclear. Thus, we investigated the effects of Pu-erh tea extract (PTE) on ovariectomy-induced osteoporosis in rats and on osteoclastogenesis in vitro. Methods: Female Wistar rats were divided into six groups: the sham, model, and Xian-Ling-Gu-Bao capsule (XLGB) groups, and the low-, medium-, and high-dose PTE groups. Ovariectomized (OVX) rats were used as an animal model of osteoporosis. The animals were intragastrically administered distilled water, XLGB, or different concentrations of PTE for 13 weeks. Body weight, blood biochemical indicators, relative organ coefficients, femoral bone mineral density (BMD), bone biomechanical properties, and bone microarchitecture were examined and analyzed. Additionally, the in vitro effects of PTE on osteoclastic activities were investigated using the RAW 264.7 cell line as an osteoclast differentiation model. The effects of PTE on osteoclast differentiation and the expression of osteoclast-specific genes and proteins were determined. Results: PTE reduced OVX-induced body weight gain after 6 weeks of treatment, and the high-dose exerted a significant effect. High-dose PTE significantly ameliorated OVX-induced estradiol (E2) deficiency. PTE treatment maintained calcium and phosphorus homeostasis and improved other blood biochemical parameters to various degrees. In addition, PTE treatment improved organ coefficients of the femur, uterus, and vagina and improved femoral BMD and bone biomechanical properties. PTE treatment strikingly ameliorated bone microarchitecture. Moreover, in the in vitro studies, osteoclast differentiation using the differentiation cell model was significantly inhibited by PTE without cytotoxic effects. Additionally, PTE efficaciously suppressed the expression of key osteoclast-specific genes and proteins. Conclusion: PTE can ameliorate ovariectomy-induced osteoporosis in rats and suppress osteoclastogenesis in vitro.
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Affiliation(s)
- Titi Liu
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,College of Food Science and Technology, Yunnan Agricultural UniversityKunming, China
| | - Shihua Ding
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,College of Food Science and Technology, Yunnan Agricultural UniversityKunming, China
| | - Dan Yin
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,College of Food Science and Technology, Yunnan Agricultural UniversityKunming, China
| | - Xiangdan Cuan
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,College of Food Science and Technology, Yunnan Agricultural UniversityKunming, China
| | - Chuanqi Xie
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,College of Food Science and Technology, Yunnan Agricultural UniversityKunming, China
| | - Huanhuan Xu
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,College of Food Science and Technology, Yunnan Agricultural UniversityKunming, China
| | - Xuanjun Wang
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,College of Longrun Pu-erh Tea, Yunnan Agricultural UniversityKunming, China.,State Key Laboratory for Conservation and Utilization of Bio-Resources in YunnanKunming, China
| | - Jun Sheng
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,State Key Laboratory for Conservation and Utilization of Bio-Resources in YunnanKunming, China
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8
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Ginaldi L, De Martinis M. Osteoimmunology and Beyond. Curr Med Chem 2017; 23:3754-3774. [PMID: 27604089 PMCID: PMC5204071 DOI: 10.2174/0929867323666160907162546] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 09/02/2016] [Accepted: 09/06/2016] [Indexed: 12/27/2022]
Abstract
Abstract: Objective Osteoimmunology investigates interactions between skeleton and immune system. In the light of recent discoveries in this field, a new reading register of osteoporosis is actually emerging, in which bone and immune cells are strictly interconnected. Osteoporosis could therefore be considered a chronic immune mediated disease which shares with other age related disorders a common inflammatory background. Here, we highlight these recent discoveries and the new landscape that is emerging. Method Extensive literature search in PubMed central. Results While the inflammatory nature of osteoporosis has been clearly recognized, other interesting aspects of osteoimmunology are currently emerging. In addition, mounting evidence indicates that the immunoskeletal interface is involved in the regulation of important body functions beyond bone remodeling. Bone cells take part with cells of the immune system in various immunological functions, configuring a real expanded immune system, and are therefore variously involved not only as target but also as main actors in various pathological conditions affecting primarily the immune system, such as autoimmunity and immune deficiencies, as well as in aging, menopause and other diseases sharing an inflammatory background. Conclusion The review highlights the complexity of interwoven pathways and shared mechanisms of the crosstalk between the immune and bone systems. More interestingly, the interdisciplinary field of osteoimmunology is now expanding beyond bone and immune cells, defining new homeostatic networks in which other organs and systems are functionally interconnected. Therefore, the correct skeletal integrity maintenance may be also relevant to other functions outside its involvement in bone mineral homeostasis, hemopoiesis and immunity.
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Affiliation(s)
- Lia Ginaldi
- School and Unit of Allergy and Clinical Immunology, Department of Life, Health, & Environmental Sciences, University of L'Aquila, Italy.
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9
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Appelman-Dijkstra NM, Papapoulos SE. From disease to treatment: from rare skeletal disorders to treatments for osteoporosis. Endocrine 2016; 52:414-26. [PMID: 26892377 PMCID: PMC4879160 DOI: 10.1007/s12020-016-0888-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 02/02/2016] [Indexed: 12/18/2022]
Abstract
During the past 15 years there has been an expansion of our knowledge of the cellular and molecular mechanisms regulating bone remodeling that identified new signaling pathways fundamental for bone renewal as well as previously unknown interactions between bone cells. Central for these developments have been studies of rare bone disorders. These findings, in turn, have led to new treatment paradigms for osteoporosis some of which are at late stages of clinical development. In this article, we review three rare skeletal disorders with case descriptions, pycnodysostosis and the craniotubular hyperostoses sclerosteosis and van Buchem disease that led to the development of cathepsin K and sclerostin inhibitors, respectively, for the treatment of osteoporosis.
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Affiliation(s)
- Natasha M Appelman-Dijkstra
- Center for Bone Quality, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands.
| | - Socrates E Papapoulos
- Center for Bone Quality, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands
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10
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A novel pyrazole derivative protects from ovariectomy-induced osteoporosis through the inhibition of NADPH oxidase. Sci Rep 2016; 6:22389. [PMID: 26975635 PMCID: PMC4792161 DOI: 10.1038/srep22389] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 02/10/2016] [Indexed: 01/12/2023] Open
Abstract
Osteoclast cells (OCs) are differentiated from bone marrow-derived macrophages (BMMs) by activation of receptor activator of nuclear factor κB (NF-κB) ligand (RANKL). Activation of NADPH oxidase (Nox) isozymes is involved in RANKL-dependent OC differentiation, implicating Nox isozymes as therapeutic targets for treatment of osteoporosis. Here, we show that a novel pyrazole derivative, Ewha-18278 has high inhibitory potency on Nox isozymes. Blocking the activity of Nox with Ewha-18278 inhibited the responses of BMMs to RANKL, including reactive oxygen species (ROS) generation, activation of mitogen-activated protein (MAP) kinases and NF-κB, and OC differentiation. To evaluate the anti-osteoporotic function of Ewha-18278, the derivative was applied to estrogen-deficient ovariectomized (OVX) ddY mice. Oral administration of Ewha-18278 (10 mg/kg/daily, 4 weeks) into the mice recovered bone mineral density, trabecular bone volume, trabecular bone length, number and thickness, compared to control OVX ddY mice. Moreover, treatment of OVX ddY mice with Ewha-18278 increased bone strength by increasing cortical bone thickness. We provide that Ewha-18278 displayed Nox inhibition and blocked the RANKL-dependent cell signaling cascade leading to reduced differentiation of OCs. Our results implicate Ewha-18278 as a novel therapeutic agent for the treatment of osteoporosis.
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11
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Gennari L, Rotatori S, Bianciardi S, Gonnelli S, Nuti R, Merlotti D. Appropriate models for novel osteoporosis drug discovery and future perspectives. Expert Opin Drug Discov 2015; 10:1201-16. [DOI: 10.1517/17460441.2015.1080685] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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12
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Kootala S, Ossipov D, van den Beucken JJJP, Leeuwenburgh S, Hilborn J. Bisphosphonate-functionalized hyaluronic acid showing selective affinity for osteoclasts as a potential treatment for osteoporosis. Biomater Sci 2015. [DOI: 10.1039/c5bm00096c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bisphosphonate-functionalized hyaluronic can potentially reduce long-term administration of high doses of BPs.
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Affiliation(s)
- Sujit Kootala
- Department of Chemistry
- A Science for Life Laboratory
- Polymer Chemistry Division
- Uppsala University
- Uppsala SE 75121
| | - Dmitri Ossipov
- Department of Chemistry
- A Science for Life Laboratory
- Polymer Chemistry Division
- Uppsala University
- Uppsala SE 75121
| | | | | | - Jöns Hilborn
- Department of Chemistry
- A Science for Life Laboratory
- Polymer Chemistry Division
- Uppsala University
- Uppsala SE 75121
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13
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Faienza MF, Luce V, Lonero A, Ventura A, Colaianni G, Colucci S, Cavallo L, Grano M, Brunetti G. Treatment of osteoporosis in children with glucocorticoid-treated diseases. Expert Rev Endocrinol Metab 2014; 9:525-534. [PMID: 30736214 DOI: 10.1586/17446651.2014.936384] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Glucocorticoid induced osteoporosis (GIO) is the most frequent form of drug induced osteoporosis. Glucocorticoids affect osteoblastogenesis, osteoclastogenesis and promote the apoptosis of osteoblasts and osteocytes. A decrease of bone mineral density has been described in several pediatric diseases that require glucocorticoids, both as long-term replacement therapy, such as Congenital Adrenal Hyperplasia, and as treatment of acute phase or relapses, such as asthma, juvenile rheumatoid arthritis, inflammatory bowel diseases, systemic lupus erythematosus, organ transplantation and Steroid Sensitive Nephrotic Syndrome. The increasing number of children with GIO and at risk of fractures reflects the complex nature of this condition, and the need of development of anti-osteoporotic drugs. In this review, we focus on the mechanisms of GIO in some pediatric diseases and on treatment of osteoporosis. We also report data on new signaling pathways as potential targets for future anti-osteoporotic drugs.
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Affiliation(s)
- Maria Felicia Faienza
- a Section of Pediatrics, Department of Biomedical Sciences and Human Oncology, University "A. Moro", Bari, Italy
| | - Vincenza Luce
- a Section of Pediatrics, Department of Biomedical Sciences and Human Oncology, University "A. Moro", Bari, Italy
| | - Antonella Lonero
- a Section of Pediatrics, Department of Biomedical Sciences and Human Oncology, University "A. Moro", Bari, Italy
| | - Annamaria Ventura
- a Section of Pediatrics, Department of Biomedical Sciences and Human Oncology, University "A. Moro", Bari, Italy
| | - Graziana Colaianni
- b Section of Human Anatomy and Histology, Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari, Bari, Italy
| | - Silvia Colucci
- b Section of Human Anatomy and Histology, Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari, Bari, Italy
| | - Luciano Cavallo
- a Section of Pediatrics, Department of Biomedical Sciences and Human Oncology, University "A. Moro", Bari, Italy
| | - Maria Grano
- b Section of Human Anatomy and Histology, Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari, Bari, Italy
| | - Giacomina Brunetti
- b Section of Human Anatomy and Histology, Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari, Bari, Italy
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