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Liu X, Zhang D, Li D, Chen Y, Xie B, Li X, Zhou J, Li J, Gu F, Xu T. Retinoschisin Is Required for Pineal Gland Calcification and Cellular Communication in Pinealocytes of Rats and Mice. J Transl Med 2024; 104:102086. [PMID: 38797343 DOI: 10.1016/j.labinv.2024.102086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 05/15/2024] [Accepted: 05/15/2024] [Indexed: 05/29/2024] Open
Abstract
Retinoschisin (RS1) is a secretory protein specifically localized to the extracellular domains in both the lateral retina and the pineal gland (PG). However, the functions of RS1 in the pineal body are poorly understood. To address this knowledge gap, in this study, we undertook histochemical, ultrastructural, and Western blotting analyses of the PG in rats and RS1-knock-in transgenic. We found that RS1 plays a key role in pineal gland calcification (PGC) in mice through both extracellular and intracellular pathways. RS1 was clustered around the cell membrane or intracellularly in pinealocytes, actively participating in the exchange of calcium and thereby mediating PGC. Additionally, RS1 deposition is essential for maintaining PGC architecture in the intercellular space of the adult PG. In RS1-knock-in mice with a nonsense mutation (p.Y65X) in the Rs1-domain of RS1, the Rs1-domain is chaotically dispersed in pinealocytes and the intercellular region of the PG. This prevents RS1 from binding calcified spots and forming calcified nodules, ultimately leading to the accumulation of calcareous lamellae in microvesicles. Additionally, RS1 was observed to colocalize with connexin-36, thereby modulating intercellular communication in the PG of both rats and mice. Our study revealed for the first time that RS1 is essential for maintaining PGC architecture and that it colocalizes with connexin 36 to modulate intercellular communication in the PG. These findings provide novel insights into the function of the RS1 gene in the PG.
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Affiliation(s)
- Xin Liu
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou Medical University, Wenzhou, China; School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, China
| | - Di Zhang
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou Medical University, Wenzhou, China; School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, China
| | - Dan Li
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Yamin Chen
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou Medical University, Wenzhou, China; School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, China
| | - Bin Xie
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou Medical University, Wenzhou, China; School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, China
| | - Xiangyu Li
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou Medical University, Wenzhou, China; School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, China
| | - Jing Zhou
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou Medical University, Wenzhou, China; School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, China
| | - Jin Li
- School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, China.
| | - Feng Gu
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou Medical University, Wenzhou, China; School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, China.
| | - Tao Xu
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou Medical University, Wenzhou, China; School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, China.
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Costa KLD, Abreu LF, Tolomei CB, Eleutério RG, Basting R, Balbinot G, Collares FM, Lopes P, Veiga N, Fernandes GVO, Peruzzo DC. Use of Local Melatonin with Xenogeneic Bone Graft to Treat Critical-Size Bone Defects in Rats with Osteoporosis: A Randomized Study. J Funct Biomater 2024; 15:124. [PMID: 38786635 PMCID: PMC11122056 DOI: 10.3390/jfb15050124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 05/07/2024] [Accepted: 05/09/2024] [Indexed: 05/25/2024] Open
Abstract
The aim of this study was to evaluate the effect of local administration of melatonin (MLT) on molecular biomarkers and calvaria bone critical defects in female rats with or without osteoporosis, associated or not with a xenogeneic biomaterial. Forty-eight female rats were randomly divided into two groups: (O) ovariectomized and (S) placebo groups. After 45 days of osteoporosis induction, two critical-size defects (5 mm diameter) were created on the calvaria. The groups were subdivided according to the following treatment: (C) Clot, MLT, MLT associated with Bio-Oss® (MLTBO), and Bio-Oss® (BO). After 45 days, the defect samples were collected and processed for microtomography, histomorphometry, and biomolecular analysis (Col-I, BMP-2, and OPN). All animals had one femur harvested to confirm the osteoporosis. Microtomography analysis demonstrated a bone mineral density reduction in the O group. Regarding bone healing, the S group presented greater filling of the defects than the O group; however, in the O group, the defects treated with MLT showed higher mineral filling than the other treatments. There was no difference between the treatments performed in the S group (p = 0.05). Otherwise, O-MLT had neoformed bone higher than in the other groups (p = 0.05). The groups that did not receive biomaterial demonstrated lower levels of Col-I secretion; S-MLT and S-MLTBO presented higher levels of OPN, while O-C presented statistically lower results (p < 0.05); O-BO showed greater BMP-2 secretion (p < 0.05). In the presence of ovariectomy-induced osteoporosis, MLT treatment increased the newly formed bone area, regulated the inflammatory response, and increased OPN expression.
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Affiliation(s)
| | - Letícia Furtado Abreu
- Department of Periodontics, São Leopoldo Mandic Research Institute, Campinas 13045-755, SP, Brazil
| | - Camila Barreto Tolomei
- Department of Periodontics, São Leopoldo Mandic Research Institute, Campinas 13045-755, SP, Brazil
| | - Rachel Gomes Eleutério
- Department of Periodontics, São Leopoldo Mandic Research Institute, Campinas 13045-755, SP, Brazil
| | - Rosanna Basting
- Department of Periodontics, São Leopoldo Mandic Research Institute, Campinas 13045-755, SP, Brazil
| | - Gabriela Balbinot
- Department of Periodontics, São Leopoldo Mandic Research Institute, Campinas 13045-755, SP, Brazil
| | - Fabrício Mezzomo Collares
- Laboratory of Dental Materials, Faculty of Dentistry of the Federal University of Rio Grande do Sul (UFRGS), Porto Alegre 90035-004, RS, Brazil
| | - Pedro Lopes
- Faculty of Dental Medicine, Universidade Católica Portuguesa, 3504-505 Viseu, Portugal
- Centre for Interdisciplinary Research in Health (CIIS), Faculty of Dental Medicine, Universidade Católica Portuguesa, 3504-505 Viseu, Portugal
| | - Nelio Veiga
- Faculty of Dental Medicine, Universidade Católica Portuguesa, 3504-505 Viseu, Portugal
- Centre for Interdisciplinary Research in Health (CIIS), Faculty of Dental Medicine, Universidade Católica Portuguesa, 3504-505 Viseu, Portugal
| | - Gustavo Vicentis Oliveira Fernandes
- Centre for Interdisciplinary Research in Health (CIIS), Faculty of Dental Medicine, Universidade Católica Portuguesa, 3504-505 Viseu, Portugal
- Missouri School of Dentistry & Oral Health, A. T. Still University, St. Louis, MO 63104, USA
| | - Daiane Cristina Peruzzo
- Department of Periodontics, São Leopoldo Mandic Research Institute, Campinas 13045-755, SP, Brazil
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Demirhan Kayacik A, İlcioglu K. Effects of melatonin intake on depression and anxiety in postmenopausal women: a systematic review and meta-analysis of randomised controlled trials. Arch Womens Ment Health 2024; 27:265-273. [PMID: 37945913 DOI: 10.1007/s00737-023-01395-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 10/30/2023] [Indexed: 11/12/2023]
Abstract
We conducted a systematic review and meta-analysis of randomised controlled trials (RCTs) evaluating the effects of melatonin intake on depression and anxiety in postmenopausal women. To identify RCTs examining the effect of melatonin supplementation on depression and anxiety scores in postmenopausal women, a comprehensive electronic search was conducted via the Cochrane Central Register of Controlled Trials, Science direct, Google Scholar, PubMed, Medline, Scopus and Web of Science databases using the keywords ("melatonin" OR "N-acetyl serotonin") AND ("menopause" OR "climacteric") AND ("depression" OR "anxiety"). The search strategy was applied to articles published between January 2000 and April 2023. The Cochrane tool was used to evaluate the bias risk in RCTs. For the meta-analysis, fixed effect models and random effect models were employed based on heterogeneity. Preferred Reporting Items for Systematic Reviews and Meta-Analysis in Our Study guidelines were followed. Five RCTs were included in the study, with a total sample size of 441 (experimental: 227 and control: 214). When the effect of melatonin use on depression in menopausal women was analysed, it was found that melatonin significantly reduced menopausal depression (SMD - 0.166, CI = - 0.288/ - 0.045, p < 0.05). When the effect of melatonin use on anxiety in postmenopausal women was analysed, it was found that melatonin significantly improved menopausal anxiety (SMD - 0.806, CI = 1.491/ - 0.120, p < 0.05). Melatonin is promising as a potential treatment to help depression and anxiety in the postmenopausal period. More high-quality studies are needed to determine their safety.
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Affiliation(s)
| | - Kevser İlcioglu
- Department of Nursing, Faculty of Health Sciences, Sakarya University, Sakarya, Turkey
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Santa K, Kumazawa Y, Watanabe K, Nagaoka I. The Potential Use of Vitamin D3 and Phytochemicals for Their Anti-Ageing Effects. Int J Mol Sci 2024; 25:2125. [PMID: 38396804 PMCID: PMC10889119 DOI: 10.3390/ijms25042125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
Unlike other vitamins, vitamin D3 is synthesised in skin cells in the body. Vitamin D3 has been known as a bone-related hormone. Recently, however, it has been considered as an immune vitamin. Vitamin D3 deficiency influences the onset of a variety of diseases. Vitamin D3 regulates the production of proinflammatory cytokines such as tumour necrosis factor-α (TNF-α) through binding to vitamin D receptors (VDRs) in immune cells. Since blood levels of vitamin D3 (25-OH-D3) were low in coronavirus disease 2019 (COVID-19) patients, there has been growing interest in the importance of vitamin D3 to maintaining a healthy condition. On the other hand, phytochemicals are compounds derived from plants with over 7000 varieties and have various biological activities. They mainly have health-promoting effects and are classified as terpenoids, carotenoids, flavonoids, etc. Flavonoids are known as the anti-inflammatory compounds that control TNF-α production. Chronic inflammation is induced by the continuous production of TNF-α and is the fundamental cause of diseases like obesity, dyslipidaemia, diabetes, heart and brain diseases, autoimmune diseases, Alzheimer's disease, and cancer. In addition, the ageing process is induced by chronic inflammation. This review explains the cooperative effects of vitamin D3 and phytochemicals in the suppression of inflammatory responses, how it balances the natural immune response, and its link to anti-ageing effects. In addition, vitamin D3 and phytochemicals synergistically contribute to anti-ageing by working with ageing-related genes. Furthermore, prevention of ageing processes induced by the chronic inflammation requires the maintenance of healthy gut microbiota, which is related to daily dietary habits. In this regard, supplementation of vitamin D3 and phytochemicals plays an important role. Recently, the association of the prevention of the non-disease condition called "ME-BYO" with the maintenance of a healthy condition has been an attractive regimen, and the anti-ageing effect discussed here is important for a healthy and long life.
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Affiliation(s)
- Kazuki Santa
- Department of Biotechnology, Tokyo College of Biotechnology, Ota-ku, Tokyo 114-0032, Japan;
| | - Yoshio Kumazawa
- Vino Science Japan Inc., Kawasaki 210-0855, Kanagawa, Japan
- Department of Biochemistry and Systems Biomedicine, Graduate School of Medicine, Juntendo University, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Kenji Watanabe
- Center for Kampo Medicine, Keio University, Shinjuku-ku, Tokyo 160-8582, Japan
- Yokohama University of Pharmacy, Yokohama 245-0066, Kanagawa, Japan
| | - Isao Nagaoka
- Department of Biochemistry and Systems Biomedicine, Graduate School of Medicine, Juntendo University, Bunkyo-ku, Tokyo 113-8421, Japan
- Faculty of Medical Science, Juntendo University, Urayasu 279-0013, Chiba, Japan
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Zhang T, Wang L, Duan X, Niu Y, Li M, Yun L, Sun H, Ma Y, Guo Y. Sirtuins mediate mitochondrial quality control mechanisms: a novel therapeutic target for osteoporosis. Front Endocrinol (Lausanne) 2024; 14:1281213. [PMID: 38264287 PMCID: PMC10805026 DOI: 10.3389/fendo.2023.1281213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 12/01/2023] [Indexed: 01/25/2024] Open
Abstract
Mitochondria plays a role in cell differentiation and apoptosis processes. Maintaining mitochondrial function is critical, and this involves various aspects of mitochondrial quality control such as protein homeostasis, biogenesis, dynamics, and mitophagy. Osteoporosis, a metabolic bone disorder, primarily arises from two factors: the dysregulation between lipogenic and osteogenic differentiation of aging bone marrow mesenchymal stem cells, and the imbalance between osteoblast-mediated bone formation and osteoclast-mediated bone resorption. Mitochondrial quality control has the potential to mitigate or even reverse the effects. Among the Sirtuin family, consisting of seven Sirtuins (SIRT1-7), SIRT1-SIRT6 play a crucial role in maintaining mitochondrial quality control. Additionally, SIRT1, SIRT3, SIRT6, and SIRT7 are directly involved in normal bone development and homeostasis by modulating bone cells. However, the precise mechanism by which these Sirtuins exert their effects remains unclear. This article reviews the impact of various aspects of mitochondrial quality control on osteoporosis, focusing on how SIRT1, SIRT3, and SIRT6 can improve osteoporosis by regulating mitochondrial protein homeostasis, biogenesis, and mitophagy. Furthermore, we provide an overview of the current state of clinical and preclinical drugs that can activate Sirtuins to improve osteoporosis. Specific Sirtuin-activating compounds are effective, but further studies are needed. The findings of this study may offer valuable insights for future research on osteoporosis and the development of clinical prevention and therapeutic target strategies.
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Affiliation(s)
- Tianchi Zhang
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Lining Wang
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- School of Chinese Medicine, School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Xiping Duan
- Acupuncture Anesthesia Clinical Research Institute, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yuanyuan Niu
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- School of Chinese Medicine, School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Muzhe Li
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Li Yun
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- School of Chinese Medicine, School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Haitao Sun
- Department of Orthopedic, Wuxi Huishan District People’s Hospital, Wuxi, Jiangsu, China
| | - Yong Ma
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- School of Chinese Medicine, School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- Department of Traumatology and Orthopedics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yang Guo
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- Department of Traumatology and Orthopedics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
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Turżańska K, Tomczyk-Warunek A, Dobrzyński M, Jarzębski M, Patryn R, Niezbecka-Zając J, Wojciechowska M, Mela A, Zarębska-Mróz A. Strontium Ranelate and Strontium Chloride Supplementation Influence on Bone Microarchitecture and Bone Turnover Markers-A Preliminary Study. Nutrients 2023; 16:91. [PMID: 38201922 PMCID: PMC10781151 DOI: 10.3390/nu16010091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 12/19/2023] [Accepted: 12/24/2023] [Indexed: 01/12/2024] Open
Abstract
Despite strontium ranelate use in osteoporosis management being one of the promising concepts in disease treatment, there is no clear evidence that strontium organic compounds are more effective than inorganic ones. The aim of this study was to compare strontium chlorate and strontium ranelate influence on the mice bone microarchitecture. We investigated whether strontium chlorate (7.532 mmol/L) and strontium ranelate (7.78 mmol/L) solutions fed to healthy SWISS growing mice (n = 42) had an influence on the percent of bone volume (BV/TV), trabecular thickness (Tb.Th), number of trabeculae (Tb.N), and separation between each trabecula (Tb.Sp) in the chosen ROI (region of interest) in the distal metaphysis of the left femurs. The cortical bone surface was examined close to the ROI proximal scan. There was an increase in each examined parameter compared with the control group. There were no statistical differences between strontium ranelate and strontium chlorate parameters. Our study indicates that organic and inorganic strontium compounds similarly affect the bone microarchitecture and strength.
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Affiliation(s)
- Karolina Turżańska
- Department of Rehabilitation and Orthopaedics, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland; (K.T.); (J.N.-Z.); (A.Z.-M.)
| | - Agnieszka Tomczyk-Warunek
- Department of Rehabilitation and Orthopaedics, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland; (K.T.); (J.N.-Z.); (A.Z.-M.)
| | - Maciej Dobrzyński
- Department of Pediatric Dentistry and Preclinical Dentistry, Wroclaw Medical University, Krakowska 26, 50-425 Wroclaw, Poland;
| | - Maciej Jarzębski
- Department of Physics and Biophysics, Faculty of Food Science and Nutrition, Poznan University of Life Sciences, Wojska Polskiego 38/42, 60-637 Poznan, Poland;
| | - Rafał Patryn
- Department of Humanities and Social Medicine, Medical University of Lublin, Chodźki 7, 20-093 Lublin, Poland;
| | - Joanna Niezbecka-Zając
- Department of Rehabilitation and Orthopaedics, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland; (K.T.); (J.N.-Z.); (A.Z.-M.)
| | - Monika Wojciechowska
- Department of Pediatrics and Nephrology, Medical University of Lublin, 20-093 Lublin, Poland;
| | - Aneta Mela
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, 02-097 Warsaw, Poland;
| | - Aneta Zarębska-Mróz
- Department of Rehabilitation and Orthopaedics, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland; (K.T.); (J.N.-Z.); (A.Z.-M.)
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de Carvalho JF, Skare TL. Melatonin supplementation improves rheumatological disease activity: A systematic review. Clin Nutr ESPEN 2023; 55:414-419. [PMID: 37202076 DOI: 10.1016/j.clnesp.2023.04.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 02/20/2023] [Accepted: 04/15/2023] [Indexed: 05/20/2023]
Abstract
BACKGROUND Melatonin is a pineal hormone with a complex role. It is linked to sleep, inflammatory, oxidative, and immunological processes. AIM To review the use of melatonin supplementation in rheumatological diseases. METHODS A systematic search of PubMed, Embase, and Scielo databases was performed, looking for articles on Melatonin and rheumatic diseases published between 1966 and August 2022. RESULTS Thirteen articles were identified: in fibromyalgia (n = 5 articles), rheumatoid arthritis (n = 2), systemic sclerosis (n = 1), systemic lupus erythematosus (n = 1) and osteoporosis/osteopenia (n = 3) and osteoarthritis (n = 1). There were positive results of melatonin administration in fibromyalgia, osteoarthritis, and osteoporosis/osteopenia but not in rheumatoid arthritis and lupus. The drug was well tolerated with mild side effects. CONCLUSION This review shows the efficacy of Melatonin in some rheumatic diseases. However, new studies are needed to elucidate the real role of this treatment in rheumatology.
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Affiliation(s)
- Jozélio Freire de Carvalho
- Núcleo de Pesquisa Em Doenças Crônicas Não Transmissíveis (NUPEN), School of Nutrition from the Federal University of Bahia, Salvador, Bahia, Brazil.
| | - Thelma L Skare
- Serviço de Reumatologia, Hospital Universitário Evangélico Mackenzie, Curitiba, PR, Brazil
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Yang T, Wu J, Ding X, Zhou B, Xiong Y. The association of melatonin use and hip fracture: a matched cohort study. Osteoporos Int 2023; 34:1127-1135. [PMID: 37036474 DOI: 10.1007/s00198-023-06740-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 03/29/2023] [Indexed: 04/11/2023]
Abstract
By using propensity-score matched cohorts, we compared the risk of incident hip fracture between melatonin initiators and hypnotic benzodiazepines initiators. The initiation of melatonin was not associated with an increased risk of hip fracture. INTRODUCTION Melatonin is hypothesized to suppress bone loss, but a previous study reported an increased risk of hip fracture among melatonin users compared with non-users, which was however susceptible to confounding by indication. This study aimed to compare the risk of hip fracture between melatonin initiators and initiators of its active comparators, i.e., hypnotic benzodiazepines. METHODS Among individuals aged 40 years or older without a history of hip fracture or cancer in the IQVIA Medical Research Database (IMRD) in the UK (2000-2018), a propensity score-matched cohort study was conducted to examine the association of melatonin initiation vs. hypnotic benzodiazepines initiation with the risk of hip fracture. RESULTS After propensity score matching, 9,038 patients were included (4,519 melatonin initiators and 4,519 hypnotic benzodiazepines initiators). During the entire follow-up, 41 cases of hip fracture occurred in the melatonin cohort, and 51 cases occurred in the hypnotic benzodiazepines cohort. The absolute rate difference in hip fracture between melatonin initiators and hypnotic benzodiazepines initiators was -0.8 (95% CI: -1.9 to 0.3) per 1000 person-years and the multivariable-adjusted hazard ratio (HR) of hip fracture for melatonin initiators was 0.78 (95% CI: 0.51 to 1.17). CONCLUSION In this population-based cohort study, the risk of hip fracture among melatonin initiators was not higher, if not lower, than that among hypnotic benzodiazepines initiators.
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Affiliation(s)
- Tuo Yang
- Health Management Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Orthopedics, Xiangya Hospital, Central South University, 87 Xiangya Road, 410008, Changsha, Hunan, China
| | - Jing Wu
- Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, 410008, Hunan, China
| | - Xiang Ding
- Department of Orthopedics, Xiangya Hospital, Central South University, 87 Xiangya Road, 410008, Changsha, Hunan, China
| | - Bin Zhou
- Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, 410008, Hunan, China.
| | - Yilin Xiong
- Department of Orthopedics, Xiangya Hospital, Central South University, 87 Xiangya Road, 410008, Changsha, Hunan, China.
- Hunan Engineering Research Center of Osteoarthritis, Changsha, Hunan, China.
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Alonso N, Meinitzer A, Fritz-Petrin E, Enko D, Herrmann M. Role of Vitamin K in Bone and Muscle Metabolism. Calcif Tissue Int 2023; 112:178-196. [PMID: 35150288 PMCID: PMC9859868 DOI: 10.1007/s00223-022-00955-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 01/26/2022] [Indexed: 01/25/2023]
Abstract
Vitamin K, a cofactor for the γ-glutamyl carboxylase enzyme, is required for the post-translational activation of osteocalcin and matrix Gla protein, which play a key role in bone and muscle homeostasis. In vivo and in vitro models for osteoporosis and sarcopenia suggest the vitamin K could exert a positive effect in both conditions. In bone, it increases osteoblastogenesis, whilst decreases osteoclast formation and function. In muscle, it is associated with increased satellite cell proliferation and migration and might play a role in energy metabolism. Observational trials suggest that high levels of vitamin K are associated with increased bone mineral density and reduced fracture risk. However, interventional studies for vitamin K supplementation yielded conflicting results. Clinical trials in sarcopenia suggest that vitamin K supplementation could improve muscle mass and function. One of the main limitations on the vitamin K studies are the technical challenges to measure its levels in serum. Thus, they are obtained from indirect sources like food questionnaires, or levels of undercarboxylated proteins, which can be affected by other environmental or biological processes. Although current research appoints to a beneficial effect of vitamin K in bone and muscle, further studies overcoming the current limitations are required in order to incorporate this supplementation in the clinical management of patients with osteosarcopenia.
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Affiliation(s)
- N Alonso
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - A Meinitzer
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - E Fritz-Petrin
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - D Enko
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - M Herrmann
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria.
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Yan Q, Zhang T, O'Connor C, Barlow JW, Walsh J, Scalabrino G, Xu F, Sheridan H. The biological responses of vitamin K2: A comprehensive review. Food Sci Nutr 2023; 11:1634-1656. [PMID: 37051359 PMCID: PMC10084986 DOI: 10.1002/fsn3.3213] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 12/14/2022] [Accepted: 12/19/2022] [Indexed: 01/09/2023] Open
Abstract
Vitamin K1 (VitK1) and Vitamin K2 (VitK2), two important naturally occurring micronutrients in the VitK family, found, respectively, in green leafy plants and algae (VitK1) and animal and fermented foods (VitK2). The present review explores the multiple biological functions of VitK2 from recently published in vitro and in vivo studies, including promotion of osteogenesis, prevention of calcification, relief of menopausal symptoms, enhancement of mitochondrial energy release, hepato- and neuro-protective effects, and possible use in treatment of coronavirus disease. The mechanisms of action associated with these biological effects are also explored. Overall, the findings presented here suggest that VitK, especially VitK2, is an important nutrient family for the normal functioning of human health. It acts on almost all major body systems and directly or indirectly participates in and regulates hundreds of physiological or pathological processes. However, as biological and clinical data are still inconsistent and conflicting, more in-depth investigations are warranted to elucidate its potential as a therapeutic strategy to prevent and treat a range of disease conditions.
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Affiliation(s)
- Quanxiang Yan
- Institute of Science and Technology Shenyang Open University Shenyang China
| | - Tao Zhang
- School of Food Science & Environmental Health Technological University Dublin Dublin 7 Ireland
- NatPro Centre, School of Pharmacy and Pharmaceutical Sciences Trinity College Dublin Dublin 2 Ireland
| | - Christine O'Connor
- School of Food Science & Environmental Health Technological University Dublin Dublin 7 Ireland
| | - James W. Barlow
- Department of Chemistry RCSI University of Medicine and Health Sciences Dublin 2 Ireland
| | - John Walsh
- NatPro Centre, School of Pharmacy and Pharmaceutical Sciences Trinity College Dublin Dublin 2 Ireland
- School of Pharmacy and Pharmaceutical Sciences Trinity College Dublin Dublin 2 Ireland
| | - Gaia Scalabrino
- NatPro Centre, School of Pharmacy and Pharmaceutical Sciences Trinity College Dublin Dublin 2 Ireland
| | - Feng Xu
- The Centre of Vitamin K2 Research Shenyang Pharmaceutical University Shenyang China
| | - Helen Sheridan
- NatPro Centre, School of Pharmacy and Pharmaceutical Sciences Trinity College Dublin Dublin 2 Ireland
- School of Pharmacy and Pharmaceutical Sciences Trinity College Dublin Dublin 2 Ireland
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11
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Daphnetin Alleviates Senile and Disuse Osteoporosis by Distinct Modulations of Bone Formation and Resorption. Antioxidants (Basel) 2022; 11:antiox11122365. [PMID: 36552574 PMCID: PMC9774389 DOI: 10.3390/antiox11122365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/23/2022] [Accepted: 11/25/2022] [Indexed: 12/02/2022] Open
Abstract
Senile and disuse osteoporosis have distinct bone turnover status and lack effective treatments. In this study, senescence-accelerated mouse prone 8 (SAMP8) and hindlimb unloading mouse models were used to explore the protective effects of daphnetin on these two types of osteoporosis, and primary osteoblasts and bone marrow monocyte-derived osteoclasts, as well as pre-osteoblast MC3T3-E1, and osteoclast precursor RAW264.7 cells were used to investigate the underlying mechanisms. The results showed that daphnetin administration effectively improved bone remodeling in both senile and disuse osteoporosis, but with different mechanisms. In senile osteoporosis with low bone turnover, daphnetin inhibited NOX2-mediated ROS production in osteoblasts, resulting in accelerated osteogenic differentiation and bone formation, while in disuse osteoporosis with high bone turnover, daphnetin restored SIRT3 expression, maintained mitochondrial homeostasis, and additionally upregulated SOD2 to eliminate ROS in osteoclasts, resulting in attenuation of osteoclast differentiation and bone resorption. These findings illuminated that daphnetin has promising potential for the prevention and treatment of senile and disuse osteoporosis. The different mechanisms may provide clues and basis for targeted prevention and treatment of osteoporosis according to distinct bone turnover status.
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12
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Tian Y, Ming J. The role of circadian rhythm in osteoporosis; a review. Front Cell Dev Biol 2022; 10:960456. [PMID: 36238690 PMCID: PMC9550872 DOI: 10.3389/fcell.2022.960456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 09/15/2022] [Indexed: 11/16/2022] Open
Abstract
Osteoporosis is characterized by a high incidence rate, with significant effects on people’s lives. The underlying mechanisms are complex, with no treatments for the condition. Recent studies have indicated that melatonin can be used to treat osteoporosis by promoting osteoblast proliferation and differentiation, and inhibiting osteoclast differentiation. Specifically, in vivo mechanisms are initiated by stabilizing biological rhythms in bone tissue. In healthy organisms, these biological rhythms are present in bone tissue, and are characterized by bone formation during the day, and bone resorption at night. When this rhythm is disrupted, osteoporosis occurs. Thus, taking appropriate medication at different times of the day could produce different effects on osteoporosis rhythms. In this review, we characterized these processes, and provided treatments and management strategies for individuals with osteoporosis.
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13
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Fan R, Bu X, Yang S, Tan Y, Wang T, Chen H, Li X. Effect of melatonin on quality of life and symptoms in patients with cancer: a systematic review and meta-analysis of randomised controlled trials. BMJ Open 2022; 12:e060912. [PMID: 36104141 PMCID: PMC9476160 DOI: 10.1136/bmjopen-2022-060912] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE This study systematically reviewed the effect of melatonin (MLT) on quality of life (QoL) and symptoms among patients with cancer. DESIGN Systematic review and meta-analysis. DATA SOURCES Cochrane Library, PubMed, Embase, Web of Science, Medline, CINAHL, Scopus, ClinicalTrials.gov, China Biology Medicine (CBM), ProQuest and Open Grey were searched from inception to November 2021. ELIGIBILITY CRITERIA We included randomised controlled trials (RCTs) assessing the effects of MLT on QoL, sleep quality, fatigue, depression, pain, stomatitis rate and stomatitis severity in adult patients with cancer, without language restrictions. Studies that reported the effects of MLT along with other interventions and had incomplete or absent outcome data were excluded. DATA EXTRACTION AND SYNTHESIS Two independent reviewers extracted data, and another two reviewers assessed the risk of bias. The risk of bias for each eligible study was assessed using the Cochrane assessment tool. The mean difference or standard mean difference (SMD) with 95% CIs was used in the computation of continuous variables to synthesise data. The relative risk was used for dichotomous outcomes. Heterogeneity was assessed and quantified (I2 statistic). RESULTS A total of 19 qualified studies that included 2101 patients with cancer (MLT: 1078, control: 1023) were included in the meta-analysis. The results indicated that MLT had no significant effect on QoL (SMD=-0.01, 95% CI (-0.14 to 0.11), p=0.83), sleep quality (SMD=-0.18, 95% CI (-0.62 to 0.26), p=0.42), fatigue (SMD=-0.34, 95% CI (-0.73 to 0.06), p=0.10), pain (SMD=-0.34, 95% CI (-0.7 to 0.02), p=0.06) or stomatitis severity (RR=0.78, 95% CI (0.47 to 1.30), p=0.35). MLT reduced stomatitis rate among patients with cancer (RR=0.47, 95% CI (0.26 to 0.88), p=0.02), except those with head and neck cancer (RR=1.09, 95% CI (0.92 to 1.29), p=0.35). MLT eased depression in patients who received administration for more than 14 days (SMD=-0.14, 95% CI (-0.27 to -0.01), p=0.03) and those who underwent surgery (SMD=-0.17, 95% CI (-0.32 to -0.03), p=0.02). CONCLUSION The findings showed that MLT did not improve the QoL, sleep quality, fatigue, pain or stomatitis severity among patients with cancer. It had a limited effect on decreasing the stomatitis rate and easing depression. Different treatments, durations and cancer types were the main sources of heterogeneity. Further large-scale RCTs are urgently needed. In addition, the effects of different combinations of MLT dosage and duration, administration types and joint measures are worthy of further study. PROSPERO REGISTRATION NUMBER CRD42021292855.
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Affiliation(s)
- Rongrong Fan
- Department of Nursing Teaching and Research, Hunan Cancer Hospital/Affiliated Cancer Hospital of Xiangya nursing school of Central South University, Changsha, China/Xiangya Center for Evidence-Based Practice & Healthcare Innovation: A Joanna Briggs Institute Affiliated Group, Changsha, China
| | - Xiaofan Bu
- Xiangya Nursing school of Central South University, Changsha, China/Xiangya Center for Evidence-Based Practice & Healthcare Innovation: A Joanna Briggs Institute Affiliated Group, Changsha, China
| | - Siyu Yang
- Department of Nursing Teaching and Research, Hunan Cancer Hospital/Affiliated Cancer Hospital of Xiangya nursing school of Central South University, Changsha, China
| | - Yan Tan
- Department of Gastrointestinal Surgery, Hunan Cancer Hospital/Affiliated Cancer Hospital of Xiangya nursing school of Central South University, Changsha, China
| | - Tongyu Wang
- Department of Nursing Teaching and Research, Hunan Cancer Hospital/Affiliated Cancer Hospital of Xiangya nursing school of Central South University, Changsha, China
| | - Hongyun Chen
- Department of Nursing Teaching and Research, Hunan Cancer Hospital/Affiliated Cancer Hospital of Xiangya nursing school of Central South University, Changsha, China
| | - Xuying Li
- Department of Nursing, Hunan Cancer Hospital/Affiliated Cancer Hospital of Xiangya nursing school of Central South University, Changsha, China/Xiangya Center for Evidence-Based Practice & Healthcare Innovation: A Joanna Briggs Institute Affiliated Group, Changsha, China
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14
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Munmun F, Mohiuddin OA, Hoang VT, Burow ME, Bunnell BA, Sola VM, Carpentieri AR, Witt-Enderby PA. The role of MEK1/2 and MEK5 in melatonin-mediated actions on osteoblastogenesis, osteoclastogenesis, bone microarchitecture, biomechanics, and bone formation. J Pineal Res 2022; 73:e12814. [PMID: 35674448 DOI: 10.1111/jpi.12814] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 04/30/2022] [Accepted: 05/11/2022] [Indexed: 12/11/2022]
Abstract
Melatonin, the primary hormone involved in circadian entrainment, plays a significant role in bone physiology. This study aimed to assess the role of MEK1/2 and MEK5 in melatonin-mediated actions in mouse and human mesenchymal stem cells (MSCs) and on bone using small-molecule inhibitors and CRISPR/Cas9 knockout approaches. Consistent with in vitro studies performed in mMSCs and hMSCs, nightly (25 mg/kg, i.p., 45 days) injections with PD184352 (MEK1/2 inhibitor) or Bix02189 (MEK5 inhibitor) or SC-1-151 (MEK1/2/5 inhibitor) demonstrated that MEK1/2 and MEK5 were the primary drivers underlying melatonin's actions on bone density, microarchitecture (i.e., trabecular number, separation, and connectivity density), and bone mechanical properties (i.e., ultimate stress) through increases in osteogenic (RUNX2, BMP-2, FRA-1, OPG) expression and decreases in PPARγ. Furthermore, CRISPR/Cas9 knockout of MEK1 or MEK5 in mMSCs seeded on PLGA scaffolds and placed into critical-size calvarial defects in Balb(c) mice (male and female) revealed that treatment with melatonin (15 mg/L; p.o., nightly, 90 days) mediates sex-specific actions of MEK1 and MEK5 in new bone formation. This study is the first to demonstrate a role for MEK1/2 and MEK5 in modulating melatonin-mediated actions on bone formation in vivo and in a sex-specific manner.
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Affiliation(s)
- Fahima Munmun
- Division of Pharmaceutical Sciences, Duquesne University School of Pharmacy, Pittsburgh, Pennsylvania, USA
| | - Omair A Mohiuddin
- Center for Stem Cell Research and Regenerative Medicine, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Van T Hoang
- Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Matthew E Burow
- Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Bruce A Bunnell
- Center for Stem Cell Research and Regenerative Medicine, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Veronica M Sola
- Department of Oral Biology, Faculty of Odontology, National University of Cordoba, Cordoba, Argentina
| | - Agata R Carpentieri
- Faculty of Odontology, National University of Cordoba and National Council for Scientific and Technical Research (CONICET); Institute for Health Sciences Research (INICSA), Cordoba, Argentina
| | - Paula A Witt-Enderby
- Division of Pharmaceutical Sciences, Duquesne University School of Pharmacy, Pittsburgh, Pennsylvania, USA
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15
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Malakoti F, Zare F, Zarezadeh R, Raei Sadigh A, Sadeghpour A, Majidinia M, Yousefi B, Alemi F. The role of melatonin in bone regeneration: A review of involved signaling pathways. Biochimie 2022; 202:56-70. [PMID: 36007758 DOI: 10.1016/j.biochi.2022.08.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 07/27/2022] [Accepted: 08/11/2022] [Indexed: 11/29/2022]
Abstract
Increasing bone resorption followed by decreasing bone mineralization are hallmarks of bone degeneration, which mostly occurs in the elderly population and post-menopausal women. The use of mesenchymal stem cells (MSCs) has raised many promises in the field of bone regeneration due to their high osteoblastic differentiation capacity and easy availability from abundant sources. A variety of compounds, including growth factors, cytokines, and other internal factors, have been combined with MSCs to increase their osteoblastic differentiation capacity. One of these factors is melatonin, whose possible regulatory role in bone metabolism and formation has recently been suggested by many studies. Melatonin also is a potential signaling molecule and can affect many of the signaling pathways involved in MSCs osteoblastic differentiation, such as activation of PI3K/AKT, BMP/Smad, MAPK, NFkB, Nrf2/HO-1, Wnt, SIRT/SOD, PERK/ATF4. Furthermore, melatonin in combination with other components such as strontium, vitamin D3, and vitamin K2 has a synergistic effect on bone microstructure and improves bone mineral density (BMD). In this review article, we aim to summarize the regulatory mechanisms of melatonin in osteoblastic differentiation of MSCs and underling involved signaling pathways as well as the clinical potential of using melatonin in bone degenerative disorders.
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Affiliation(s)
- Faezeh Malakoti
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Farshad Zare
- Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Zarezadeh
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Aydin Raei Sadigh
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alireza Sadeghpour
- Department of Orthopedic Surgery, School of Medicine and Shohada Educational Hospital, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Majidinia
- Solid Tumor Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Bahman Yousefi
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Forough Alemi
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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16
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Solá VM, Aguilar JJ, Farías A, Vazquez Mosquera AP, Peralta López ME, Carpentieri AR. Melatonin protects gingival mesenchymal stem cells and promotes differentiation into osteoblasts. Cell Biochem Funct 2022; 40:636-646. [PMID: 35848411 DOI: 10.1002/cbf.3733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 07/01/2022] [Accepted: 07/03/2022] [Indexed: 11/09/2022]
Abstract
Melatonin (MEL) has antioxidant properties and participates in osteogenic differentiation. In periodontitis, in which increased oxidative stress and bone resorption are involved, mesenchymal stem cells derived from the gingiva (GMSCs) combined with MEL could be relevant for osteogenic regeneration. In this study, we studied the antioxidant and differentiating effect of MEL on an in vitro system of GMSCs. Primary culture of GMSCs from Wistar rats was developed to evaluate differentiation into osteoblasts with an appropriate medium with or without MEL. Marker genes of mesenchymal stem cells by real time-polymerase chain reaction, clonogenic capacity, and cell migration after wound assay were used to characterize GMSCs as mesenchymal stem cells. Alkaline phosphatase activity and the alizarin red technique were used to evaluate osteogenic activity and differentiation. MEL increased alkaline phosphatase activity and alizarin red values, promoting osteogenic differentiation. Besides this, MEL protected GMSCs in a model of cellular damage related to oxidative stress, returning viability to baseline. MEL was more effective in promoting and protecting GMSCs by the production of osteogenic cells when oxidative stress is present. This evidence supports the use of MEL as a novel bone-regenerative therapy in periodontal diseases.
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Affiliation(s)
- Verónica M Solá
- Cátedra "B" de Química Biológica, Facultad de Odontología, Universidad Nacional de Córdoba (UNC), Córdoba, Argentina.,Instituto de Investigaciones en Ciencias de la Salud (INICSA/UNC-CONICET), Córdoba, Argentina
| | - Juan J Aguilar
- Instituto de Virología Dr. José María Vanella, Facultad de Ciencias Médicas, UNC, Córdoba, Argentina.,Cátedra "B" de Introducción a la Física y Química Biológica, Facultad de Odontología, UNC, Córdoba, Argentina
| | - Adrián Farías
- Instituto de Virología Dr. José María Vanella, Facultad de Ciencias Médicas, UNC, Córdoba, Argentina
| | - Ana P Vazquez Mosquera
- Cátedra "B" de Química Biológica, Facultad de Odontología, Universidad Nacional de Córdoba (UNC), Córdoba, Argentina.,Instituto de Investigaciones en Ciencias de la Salud (INICSA/UNC-CONICET), Córdoba, Argentina.,Cátedra "B" de Introducción a la Física y Química Biológica, Facultad de Odontología, UNC, Córdoba, Argentina
| | - María E Peralta López
- Cátedra "B" de Química Biológica, Facultad de Odontología, Universidad Nacional de Córdoba (UNC), Córdoba, Argentina
| | - Agata R Carpentieri
- Cátedra "B" de Química Biológica, Facultad de Odontología, Universidad Nacional de Córdoba (UNC), Córdoba, Argentina.,Instituto de Investigaciones en Ciencias de la Salud (INICSA/UNC-CONICET), Córdoba, Argentina
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17
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The Effect of Osteoblast Isolation Methods from Adult Rats on Osteoclastogenesis in Co-Cultures. Int J Mol Sci 2022; 23:ijms23147875. [PMID: 35887222 PMCID: PMC9318333 DOI: 10.3390/ijms23147875] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 07/04/2022] [Accepted: 07/15/2022] [Indexed: 02/01/2023] Open
Abstract
Co-cultures of osteoblasts and osteoclasts are on the rise because they enable a more complex study. Diseases such as osteoporosis are related to a higher age. Thus, cell isolation from adult individuals is necessary. Osteoblasts can be isolated from the rat femur by three methods: explant culture, explant culture with enzymatic pre-treatment, or enzymatic treatment. The isolation methods yield different populations of osteoblasts which, in a co-culture with peripheral blood mononuclear cells, might result in differences in osteoclastogenesis. Therefore, we examined the differences in osteogenic markers, cell proliferation, and the metabolic activity of isolated osteoblast-like cells in a growth and differentiation medium. We then evaluated the effect of the isolated populations of osteoblast-like cells on osteoclastogenesis in a subsequent co-culture by evaluating osteoclast markers, counting formed osteoclast-like cells, and analyzing their area and number of nuclei. Co-cultures were performed in the presence or absence of osteoclastogenic growth factors, M-CSF and RANKL. It was discovered that enzymatic isolation is not feasible in adult rats, but explant culture and explant culture with enzymatic pre-treatment were both successful. Explant culture with enzymatic pre-treatment yielded cells with a higher proliferation than explant culture in a growth medium. The differentiation medium reduced differences in proliferation during the culture. Some differences in metabolic activity and ALP activity were also found between the osteoblast-like cells isolated by explant culture or by explant culture with enzymatic pre-treatment, but only on some days of cultivation. According to microscopy, the presence of exogenous growth factors supporting osteoclastogenesis in co-cultures was necessary for the formation of osteoclast-like cells. In this case, the formation of a higher number of osteoclast-like cells with a larger area was observed in the co-culture with osteoblast-like cells isolated by explant culture compared to the explant culture with enzymatic pre-treatment. Apart from this observation, no differences in osteoclast markers were noted between the co-cultures with osteoblast-like cells isolated by explant culture and the explant culture with enzymatic pre-treatment. The TRAP and CA II activity was higher in the co-cultures with exogenous growth than that in the co-cultures without exogenous growth factors on day 7, but the opposite was true on day 14. To conclude, explant culture and explant culture with enzymatic pre-treatment are both suitable methods to yield osteoblast-like cells from adult rats capable of promoting osteoclastogenesis in a direct co-culture with peripheral blood mononuclear cells. Explant culture with enzymatic pre-treatment yielded cells with a higher proliferation. The explant culture yielded osteoblast-like cells which induced the formation of a higher number of osteoclast-like cells with a larger area compared to the explant culture with enzymatic pre-treatment when cultured with exogenous M-CSF and RANKL.
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18
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Insights into the Role of Macrophage Polarization in the Pathogenesis of Osteoporosis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:2485959. [PMID: 35707276 PMCID: PMC9192196 DOI: 10.1155/2022/2485959] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/01/2022] [Accepted: 05/11/2022] [Indexed: 12/12/2022]
Abstract
Millions of people worldwide suffer from osteoporosis, which causes bone fragility and increases the risk of fractures. Osteoporosis is closely related to the inhibition of osteogenesis and the enhancement of osteoclastogenesis. In addition, chronic inflammation and macrophage polarization may contribute to osteoporosis as well. Macrophages, crucial to inflammatory responses, display different phenotypes under the control of microenvironment. There are two major phenotypes, classically activated macrophages (M1) and alternatively activated macrophages (M2). Generally, M1 macrophages mainly lead to bone resorption, while M2 macrophages result in osteogenesis. M1/M2 ratio reflects the “fluid” state of macrophage polarization, and the imbalance of M1/M2 ratio may cause disease such as osteoporosis. Additionally, antioxidant drugs, such as melatonin, are applied to change the state of macrophage polarization and to treat osteoporosis. In this review, we introduce the mechanisms of macrophage polarization-mediated bone resorption and bone formation and the contribution to the clinical strategies of osteoporosis treatment.
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19
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Zhao Y, Shao G, Liu X, Li Z. Assessment of the Therapeutic Potential of Melatonin for the Treatment of Osteoporosis Through a Narrative Review of Its Signaling and Preclinical and Clinical Studies. Front Pharmacol 2022; 13:866625. [PMID: 35645810 PMCID: PMC9130700 DOI: 10.3389/fphar.2022.866625] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 04/06/2022] [Indexed: 12/21/2022] Open
Abstract
Melatonin is a bioamine produced primarily in the pineal gland, although peripheral sites, including the gut, may also be its minor source. Melatonin regulates various functions, including circadian rhythm, reproduction, temperature regulation, immune system, cardiovascular system, energy metabolism, and bone metabolism. Studies on cultured bone cells, preclinical disease models of bone loss, and clinical trials suggest favorable modulation of bone metabolism by melatonin. This narrative review gives a comprehensive account of the current understanding of melatonin at the cell/molecular to the systems levels. Melatonin predominantly acts through its cognate receptors, of which melatonin receptor 2 (MT2R) is expressed in mesenchymal stem cells (MSCs), osteoblasts (bone-forming), and osteoclasts (bone-resorbing). Melatonin favors the osteoblastic fate of MSCs, stimulates osteoblast survival and differentiation, and inhibits osteoclastogenic differentiation of hematopoietic stem cells. Produced from osteoblastic cells, osteoprotegerin (OPG) and receptor activator of nuclear factor kappa B ligand (RANKL) critically regulate osteoclastogenesis and melatonin by suppressing the osteoclastogenic RANKL, and upregulating the anti-osteoclastogenic OPG exerts a strong anti-resorptive effect. Although the anti-inflammatory role of melatonin favors osteogenic function and antagonizes the osteoclastogenic function with the participation of SIRT signaling, various miRNAs also mediate the effects of the hormone on bone cells. In rodent models of osteoporosis, melatonin has been unequivocally shown to have an anti-osteoporotic effect. Several clinical trials indicate the bone mass conserving effect of melatonin in aging/postmenopausal osteoporosis. This review aims to determine the possibility of melatonin as a novel class of anti-osteoporosis therapy through the critical assessment of the available literature.
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Affiliation(s)
- Yongchao Zhao
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Guoxi Shao
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Xingang Liu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Zhengwei Li
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
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20
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Ciortea VM, Borda MI, Motoașcă I, Șușman S, Ciubean AD, Pintea AL, Ungur RA, Iliescu MG, Irsay L. Influence of melatonin on systemic inflammatory status and bone histopathological modifications in female rats with surgically induced menopause. BALNEO AND PRM RESEARCH JOURNAL 2022. [DOI: 10.12680/balneo.2022.493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background. Melatonin, N-acetyl-5-methoxy-tryptamine is the major secretion product of the pineal gland with important anti-inflammatory and antioxidant properties, also being an im-portant marker of bone remodelling associated with menopause. Objectives. The aim of our study was to evaluate the effect of the co-administration of melatonin and estrogen on systemic inflammatory status and bone histopathological modifications in surgically induced menopau-sal female rats. Materials and methods. The study was performed on a number of 40 female rats, Wistar breed, which underwent bilateral surgical ovariectomy. Within 14 days postoperative, hormone replacement therapy with estrogen or estrogen with melatonin was initiated, in differ-ent doses. The treatment was administered for 12 consecutive weeks. At the end of the treatment we measured the serum levels of IL-6 and TNF-α. The femoral bones were harvested after sacri-ficing the animals and the thickness of the cortical bones was measured and histologically ana-lysed.
Results. Serum values of inflammatory markers were negatively correlated with melatonin ad-ministration, the differences being more important at higher doses of melatonin (for both IL-6 and TNF-α the difference between group E_2M with estrogen substitution and melatonin in double dose and control group W, without hormone replacement, was highly statistically signif-icant with p <0.0001). Bone diameters improved in the case of female rats that received hormone replacement with estrogen and higher dose of melatonin (p = 0.0004 between group E_2M, with hormone replacement and group W, control group). Conclusions. Melatonin improved inflam-matory status and bone histopathological changes in ovariectomized female rats.
Keywords: melatonin, estrogen replacement therapy, inflammation, low bone density
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Affiliation(s)
- Viorela Mihaela Ciortea
- 1 Department of Rehabilitation, ”Iuliu Hatieganu” University of Medicine and Pharmacy Cluj-Napoca, Romania 2 Clinical Rehabilitation Hospital Cluj-Napoca, Romania
| | - Monica Ileana Borda
- 1 Department of Rehabilitation, ”Iuliu Hatieganu” University of Medicine and Pharmacy Cluj-Napoca, Romania 2 Clinical Rehabilitation Hospital Cluj-Napoca, Romania
| | | | - Sergiu Șușman
- Department of Histology, ”Iuliu Hatieganu” University of Medicine and Pharmacy Cluj-Napoca, Romania
| | - Alina Deniza Ciubean
- Department of Rehabilitation, ”Iuliu Hatieganu” University of Medicine and Pharmacy Cluj-Napoca, Romania
| | - Alina Liliana Pintea
- Dental Medicine and Nursing Department, ”Lucian Blaga” University of Sibiu, Faculty of Medi-cine, Academic Emergency Hospital of Sibiu, Romania
| | - Rodica Ana Ungur
- 1 Department of Rehabilitation, ”Iuliu Hatieganu” University of Medicine and Pharmacy Cluj-Napoca, Romania 2 Clinical Rehabilitation Hospital Cluj-Napoca, Romania
| | | | - Laszlo Irsay
- 1 Department of Rehabilitation, ”Iuliu Hatieganu” University of Medicine and Pharmacy Cluj-Napoca, Romania 2 Clinical Rehabilitation Hospital Cluj-Napoca, Romania
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21
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Zhang YW, Cao MM, Li YJ, Dai GC, Lu PP, Zhang M, Bai LY, Chen XX, Zhang C, Shi L, Rui YF. The regulative effect and repercussion of probiotics and prebiotics on osteoporosis: involvement of brain-gut-bone axis. Crit Rev Food Sci Nutr 2022; 63:7510-7528. [PMID: 35234534 DOI: 10.1080/10408398.2022.2047005] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Osteoporosis (OP) is a systemic disease characterized by decreased bone mass and degeneration of bone microstructure. In recent years, more and more researches have focused on the close relationship between gut microbiota (GM) and the occurrence and progression of OP, and the regulation of probiotics and prebiotics on bone metabolism has gradually become a research hotspot. Based on the influence of brain-gut-bone axis on bone metabolism, this review expounds the potential mechanisms of probiotics and prebiotics on OP from next perspectives: regulation of intestinal metabolites, regulation of intestinal epithelial barrier function, involvement of neuromodulation, involvement of immune regulation and involvement of endocrine regulation, so as to provide a novel and promising idea for the prevention and treatment of OP in the future.
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Affiliation(s)
- Yuan-Wei Zhang
- Department of Orthopaedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, P.R. China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
| | - Mu-Min Cao
- Department of Orthopaedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, P.R. China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
| | - Ying-Juan Li
- Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- Department of Geriatrics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
| | - Guang-Chun Dai
- Department of Orthopaedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, P.R. China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
| | - Pan-Pan Lu
- Department of Orthopaedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, P.R. China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
| | - Ming Zhang
- Department of Orthopaedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, P.R. China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
| | - Li-Yong Bai
- Department of Orthopaedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, P.R. China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
| | - Xiang-Xu Chen
- Department of Orthopaedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, P.R. China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
| | - Cheng Zhang
- Department of Orthopaedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, P.R. China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
| | - Liu Shi
- Department of Orthopaedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, P.R. China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
| | - Yun-Feng Rui
- Department of Orthopaedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
- Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, P.R. China
- Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, P.R. China
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22
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Yan R, Li J, Wu Q, Zhang X, Hu L, Deng Y, Jiang R, Wen J, Jiang X. Trace Element-Augmented Titanium Implant With Targeted Angiogenesis and Enhanced Osseointegration in Osteoporotic Rats. Front Chem 2022; 10:839062. [PMID: 35273950 PMCID: PMC8902677 DOI: 10.3389/fchem.2022.839062] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 01/06/2022] [Indexed: 11/16/2022] Open
Abstract
Deteriorated bone quality in osteoporosis challenges the success of implants, which are in urgent need for better early osseointegration as well as antibacterial property for long-term stability. As osteoporotic bone formation tangles with angiogenic clues, the relationship between osteogenesis and angiogenesis has been a novel therapy target for osteoporosis. However, few designs of implant coatings take the compromised osteoporotic angiogenic microenvironment into consideration. Here, we investigated the angiogenic effects of bioactive strontium ions of different doses in HUVECs only and in a co-culture system with BMSCs. A proper dose of strontium ions (0.2–1 mM) could enhance the secretion of VEGFA and Ang-1 in HUVECs as well as in the co-culture system with BMSCs, exhibiting potential to create an angiogenic microenvironment in the early stage that would be beneficial to osteogenesis. Based on the dose screening, we fabricated a bioactive titanium surface doped with zinc and different doses of strontium by plasma electrolytic oxidation (PEO), for the establishment of a microenvironment favoring osseointegration for osteoporosis. The dual bioactive elements augmented titanium surfaces induced robust osteogenic differentiation, and enhanced antimicrobial properties. Augmented titanium implant surfaces exhibited improved bone formation and bone–implant contact under comprehensive assessment of an in vivo bone–implant interface. In conclusion, zinc- and strontium-augmented titanium surface benefits the osseointegration in osteoporosis via promoting osteogenic differentiation, exerting antibacterial efficacy, and stimulating early angiogenesis.
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Affiliation(s)
- Ran Yan
- Key Laboratory of Stomatology, Department of Prosthodontics, College of Stomatology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, National Center for Stomatology; National Clinical Research Center for Oral Diseases, Shanghai Engineering Research Center of Advanced Dental Technology and Materials, Shanghai Jiao Tong University, Shanghai, China
| | - Jinhua Li
- School of Medical Technology, Beijing Institute of Technology, Beijing, China
| | - Qianju Wu
- Key Laboratory of Stomatology, Department of Prosthodontics, College of Stomatology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, National Center for Stomatology; National Clinical Research Center for Oral Diseases, Shanghai Engineering Research Center of Advanced Dental Technology and Materials, Shanghai Jiao Tong University, Shanghai, China
- Stomatological Hospital of Xiamen Medical College, Xiamen, China
| | - Xiangkai Zhang
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Longwei Hu
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuwei Deng
- Key Laboratory of Stomatology, Department of Prosthodontics, College of Stomatology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, National Center for Stomatology; National Clinical Research Center for Oral Diseases, Shanghai Engineering Research Center of Advanced Dental Technology and Materials, Shanghai Jiao Tong University, Shanghai, China
| | - Ruixue Jiang
- Key Laboratory of Stomatology, Department of Prosthodontics, College of Stomatology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, National Center for Stomatology; National Clinical Research Center for Oral Diseases, Shanghai Engineering Research Center of Advanced Dental Technology and Materials, Shanghai Jiao Tong University, Shanghai, China
| | - Jin Wen
- Key Laboratory of Stomatology, Department of Prosthodontics, College of Stomatology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, National Center for Stomatology; National Clinical Research Center for Oral Diseases, Shanghai Engineering Research Center of Advanced Dental Technology and Materials, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Jin Wen, ; Xinquan Jiang,
| | - Xinquan Jiang
- Key Laboratory of Stomatology, Department of Prosthodontics, College of Stomatology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, National Center for Stomatology; National Clinical Research Center for Oral Diseases, Shanghai Engineering Research Center of Advanced Dental Technology and Materials, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Jin Wen, ; Xinquan Jiang,
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23
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Borciani G, Montalbano G, Baldini N, Vitale-Brovarone C, Ciapetti G. Protocol of Co-Culture of Human Osteoblasts and Osteoclasts to Test Biomaterials for Bone Tissue Engineering. Methods Protoc 2022; 5:8. [PMID: 35076543 PMCID: PMC8788488 DOI: 10.3390/mps5010008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 12/22/2021] [Accepted: 01/03/2022] [Indexed: 12/24/2022] Open
Abstract
New biomaterials and scaffolds for bone tissue engineering (BTE) applications require to be tested in a bone microenvironment reliable model. On this assumption, the in vitro laboratory protocols with bone cells represent worthy experimental systems improving our knowledge about bone homeostasis, reducing the costs of experimentation. To this day, several models of the bone microenvironment are reported in the literature, but few delineate a protocol for testing new biomaterials using bone cells. Herein we propose a clear protocol to set up an indirect co-culture system of human-derived osteoblasts and osteoclast precursors, providing well-defined criteria such as the cell seeding density, cell:cell ratio, the culture medium, and the proofs of differentiation. The material to be tested may be easily introduced in the system and the cell response analyzed. The physical separation of osteoblasts and osteoclasts allows distinguishing the effects of the material onto the two cell types and to evaluate the correlation between material and cell behavior, cell morphology, and adhesion. The whole protocol requires about 4 to 6 weeks with an intermediate level of expertise. The system is an in vitro model of the bone remodeling system useful in testing innovative materials for bone regeneration, and potentially exploitable in different application fields. The use of human primary cells represents a close replica of the bone cell cooperation in vivo and may be employed as a feasible system to test materials and scaffolds for bone substitution and regeneration.
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Affiliation(s)
- Giorgia Borciani
- Biomedical Science and Technologies Laboratory, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (G.B.); (N.B.); (G.C.)
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy;
- Department of Biomedical and Neuromotor Sciences, University of Bologna, 40136 Bologna, Italy
| | - Giorgia Montalbano
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy;
| | - Nicola Baldini
- Biomedical Science and Technologies Laboratory, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (G.B.); (N.B.); (G.C.)
- Department of Biomedical and Neuromotor Sciences, University of Bologna, 40136 Bologna, Italy
| | - Chiara Vitale-Brovarone
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy;
| | - Gabriela Ciapetti
- Biomedical Science and Technologies Laboratory, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (G.B.); (N.B.); (G.C.)
- Laboratory of Nanobiotechnology, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
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24
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Munmun F, Witt-Enderby PA. Mesenchymal Stem Cell and Monocyte Co-cultures. Methods Mol Biol 2022; 2550:353-364. [PMID: 36180705 DOI: 10.1007/978-1-0716-2593-4_36] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Transwell co-cultures are critical to study cell-to-cell communication through the release of factors between different cells allowing for the simultaneous assessment of treatment effects on one cell type (e.g., Cell A) and their impact on another cell type (e.g., Cell B). This allows for the simultaneous assessment of two different cell types and the factors they secrete under the same treatment conditions, which minimizes interexperimental variability, demonstrates causation rather than association, and enhances the translatability of the findings to the in vivo condition. Here we describe transwell co-cultures of human mesenchymal stem cells (MSCs) and peripheral blood monocytes or pre-osteoclasts to assess osteoblast-mediated actions on osteoclastogenesis.
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Affiliation(s)
- Fahima Munmun
- Division of Pharmaceutical Sciences, Duquesne University School of Pharmacy, Pittsburgh, PA, USA
| | - Paula A Witt-Enderby
- Division of Pharmaceutical, Administrative and Social Sciences, Duquesne University School of Pharmacy, Pittsburgh, PA, USA.
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25
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Patel A, Zhou EW, O'Brien M, Wang X, Zhou S. Melatonin in neuroskeletal biology. Curr Opin Pharmacol 2021; 61:42-48. [PMID: 34607253 DOI: 10.1016/j.coph.2021.08.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/27/2021] [Accepted: 08/30/2021] [Indexed: 12/17/2022]
Abstract
Osteoporosis and neurodegenerative diseases are common diseases in the aging population. Studies demonstrate the complex communication among skeletal, muscular, and nervous systems and point to the emerging roles of neuromuscular systems in bone homeostasis. The discovery that the nervous system directly regulates bone remodeling implies that osteoporosis is a neuroskeletal disease. Melatonin, a hormone secreted from the pineal gland, is a melatonin receptor 1A (MT1) and 1B (MT2) agonist and influences the function of diverse systems. Melatonin is a pharmaceutical ingredient in numerous medicines, over-the-counter medicines, nutraceuticals, and dietary supplements, which benefit disease prevention and treatment, including osteoporosis and neurodegenerative diseases. This review aims to summarize the recent advances in preventing senile, postmenopausal, and neurodegenerative osteoporosis with melatonin and provide new insights into how neuromuscular systems influence bone homeostasis. More preclinical and clinical studies in neuroskeletal biology will eventually improve the lives of people fighting osteoporosis.
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Affiliation(s)
- Anish Patel
- Skeletal Biology Laboratory, Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Edward W Zhou
- Neuroapoptosis Drug Discovery Laboratory, Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Morgan O'Brien
- Skeletal Biology Laboratory, Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Xin Wang
- Neuroapoptosis Drug Discovery Laboratory, Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
| | - Shuanhu Zhou
- Skeletal Biology Laboratory, Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA.
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26
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Circadian Rhythm Dysregulation and Restoration: The Role of Melatonin. Nutrients 2021; 13:nu13103480. [PMID: 34684482 PMCID: PMC8538349 DOI: 10.3390/nu13103480] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 09/27/2021] [Accepted: 09/28/2021] [Indexed: 11/17/2022] Open
Abstract
Sleep is an essential component of overall human health but is so tightly regulated that when disrupted can cause or worsen certain ailments. An important part of this process is the presence of the well-known hormone, melatonin. This compound assists in the governing of sleep and circadian rhythms. Previous studies have postulated that dysregulation of melatonin rhythms is the driving force behind sleep and circadian disorders. A computer-aided search spanning the years of 2015–2020 using the search terms melatonin, circadian rhythm, disorder yielded 52 full text articles that were analyzed. We explored the mechanisms behind melatonin dysregulation and how it affects various disorders. Additionally, we examined associated therapeutic treatments including bright light therapy (BLT) and exogenous forms of melatonin. We found that over the past 5 years, melatonin has not been widely investigated in clinical studies thus there remains large gaps in its potential utilization as a therapy.
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27
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MacDonald IJ, Tsai HC, Chang AC, Huang CC, Yang SF, Tang CH. Melatonin Inhibits Osteoclastogenesis and Osteolytic Bone Metastasis: Implications for Osteoporosis. Int J Mol Sci 2021; 22:ijms22179435. [PMID: 34502344 PMCID: PMC8430520 DOI: 10.3390/ijms22179435] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/25/2021] [Accepted: 08/27/2021] [Indexed: 12/16/2022] Open
Abstract
Osteoblasts and osteoclasts are major cellular components in the bone microenvironment and they play a key role in the bone turnover cycle. Many risk factors interfere with this cycle and contribute to bone-wasting diseases that progressively destroy bone and markedly reduce quality of life. Melatonin (N-acetyl-5-methoxy-tryptamine) has demonstrated intriguing therapeutic potential in the bone microenvironment, with reported effects that include the regulation of bone metabolism, acceleration of osteoblastogenesis, inhibition of osteoclastogenesis and the induction of apoptosis in mature osteoclasts, as well as the suppression of osteolytic bone metastasis. This review aims to shed light on molecular and clinical evidence that points to possibilities of melatonin for the treatment of both osteoporosis and osteolytic bone metastasis. It appears that the therapeutic qualities of melatonin supplementation may enable existing antiresorptive osteoporotic drugs to treat osteolytic metastasis.
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Affiliation(s)
- Iona J. MacDonald
- Graduate Institute of Basic Medical Science, China Medical University, Taichung 40402, Taiwan; (I.J.M.); (H.-C.T.)
| | - Hsiao-Chi Tsai
- Graduate Institute of Basic Medical Science, China Medical University, Taichung 40402, Taiwan; (I.J.M.); (H.-C.T.)
| | - An-Chen Chang
- Translational Medicine Center, Shin Kong Wu Ho-Su Memorial Hospital, Taipei City 111, Taiwan;
| | - Chien-Chung Huang
- School of Medicine, China Medical University, Taichung 40402, Taiwan;
- Division of Immunology and Rheumatology, Department of Internal Medicine, China Medical University Hospital, Taichung 40447, Taiwan
| | - Shun-Fa Yang
- Institute of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan;
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
| | - Chih-Hsin Tang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung 40402, Taiwan; (I.J.M.); (H.-C.T.)
- School of Medicine, China Medical University, Taichung 40402, Taiwan;
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 40402, Taiwan
- Chinese Medicine Research Center, China Medical University, Taichung 40402, Taiwan
- Department of Biotechnology, College of Health Science, Asia University, Taichung 41354, Taiwan
- Correspondence: ; Tel.: +886-2205-2121 (ext. 7726)
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28
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Munmun F, Witt-Enderby PA. Melatonin effects on bone: Implications for use as a therapy for managing bone loss. J Pineal Res 2021; 71:e12749. [PMID: 34085304 DOI: 10.1111/jpi.12749] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 05/22/2021] [Accepted: 05/31/2021] [Indexed: 02/06/2023]
Abstract
Melatonin is the primary circadian output signal from the brain and is mainly synthesized in pinealocytes. The rhythm and secretion of melatonin are under the control of an endogenous oscillator located in the SCN or the master biological clock. Disruptions in circadian rhythms by shift work, aging, or light at night are associated with bone loss and increased fracture risk. Restoration of nocturnal melatonin peaks to normal levels or therapeutic levels through timed melatonin supplementation has been demonstrated to provide bone-protective actions in various models. Melatonin is a unique molecule with diverse molecular actions targeting melatonin receptors located on the plasma membrane or mitochondria or acting independently of receptors through its actions as an antioxidant or free radical scavenger to stimulate osteoblastogenesis, inhibit osteoclastogenesis, and improve bone density. Its additional actions on entraining circadian rhythms and improving quality of life in an aging population coupled with its safety profile make it an ideal therapeutic candidate for protecting against bone loss in susceptible populations. The intent of this review is to provide a focused discussion on bone loss and disorders of the bone as it relates to melatonin and conditions that modify melatonin levels with the hope that future therapies include those that include melatonin and correct those factors that modify melatonin levels like circadian disruption.
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Affiliation(s)
- Fahima Munmun
- Division of Pharmaceutical Sciences, Duquesne University School of Pharmacy, Pittsburgh, PA, USA
| | - Paula A Witt-Enderby
- Division of Pharmaceutical Sciences, Duquesne University School of Pharmacy, Pittsburgh, PA, USA
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29
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Huang J, Li Y, He C. Melatonin as a Trigger of Therapeutic Bone Regenerating Capacity in Biomaterials. Curr Pharm Biotechnol 2021; 23:707-718. [PMID: 34250874 DOI: 10.2174/1389201022666210709145347] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 05/17/2021] [Accepted: 05/17/2021] [Indexed: 02/08/2023]
Abstract
Bone defects are usually treated with bone grafting. Several synthetic biomaterials have emerged to replace autologous and allogeneic bone grafts, but there are still shortcomings in bone regeneration. Melatonin has demonstrated a beneficial effect on bone metabolism with the potential to treat fractures, bone defects, and osteoporosis. The hormone promoted osteogenesis, inhibited osteoclastogenesis, stimulated angiogenesis, and reduced peri-implantitis around the graft. Recently, a growing number of studies showed beneficial effects of melatonin to treat bone defects. However, cellular and molecular mechanisms involved in bone healing are still poorly understood. In this review, we recapitulate the potential mechanisms of melatonin, providing a new horizon to the clinical treatment of bone defects.
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Affiliation(s)
- Jinming Huang
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Yi Li
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Chengqi He
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China
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30
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Sauer D. [62/f-unsteady walking and falls in the home environment : Preparation for the medical specialist examination-case 21]. DER ORTHOPADE 2021; 50:62-66. [PMID: 32990758 DOI: 10.1007/s00132-020-04004-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- D Sauer
- Wirbelsäulenzentrum, Schön Klinik München Harlaching, Harlachinger Str. 51, 81547, München, Deutschland.
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31
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Effects of exogenous melatonin on sleep quality and menopausal symptoms in menopausal women: a systematic review and meta-analysis of randomized controlled trials. ACTA ACUST UNITED AC 2021; 28:717-725. [PMID: 33784263 DOI: 10.1097/gme.0000000000001757] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
IMPORTANCE Because of the bothersome symptoms during women's menopausal period and the severe side effects of hormone therapy, it is meaningful to find new breakthroughs in improving menopausal women's quality of life. OBJECTIVE We performed a systematic review and meta-analysis of randomized controlled trials (RCTs) evaluating melatonin intake on the improvement of sleep quality, general menopausal symptom, mood states, as well as interaction of estradiol levels and body mass index (BMI) in menopausal women. EVIDENCE REVIEW We used the search terms "melatonin" together with "menopause" or "post-menopause" or "peri-menopause" in multiple databases online including PubMed, Web of Science, Embase, Clinical trial, Cochrane Library, and China National Knowledge Infrastructure from the first publication year to October 2020. Interesting data included characteristics of the study design, study participants, intervention, and outcome measures. Risk of biases in RCTs was evaluated with the Cochrane tool. Fixed-effect models and random-effect models were used for meta-analysis according to heterogeneity. Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines were followed in our study. FINDINGS Eight cohorts (n = 812) evaluating the effects of melatonin in menopausal women were included. Melatonin was used in every study with differences existing in dose (1 mg - 5 mg) and duration (3 to 12 mo). Improved physical symptoms (standard mean difference [SMD] -0.376; 95% CI, -0.599 to -0.153, P = 0.001) merged in four RCTs. Melatonin treatment resulted in no benefits to sleep quality (SMD -0.659; 95% CI, -1.535 to 0.217, P = 0.141) and general menopause symptoms (SMD -0.625; 95% CI, -1.354 to 0.105, P = 0.093) in four and three RCTs, respectively. More specifically, melatonin did not solve the psychological (SMD -0.026; 95% CI, -0.372 to 0.321, P = 0.884, I2 = 70.3%), sexual (SMD -0.661; 95% CI, -1.416 to 0.093, P = 0.086) and vasomotor (SMD -0.256; 95% CI, -0.701 to 0.188, P = 0.258) issues. No significant changes were observed in anxiety (SMD 0.018; 95% CI, -0.519 to 0.556, P = 0.946), depression (SMD 0.133; 95% CI, -0.435 to 0.702, P = 0.646), BMI (weighted mean difference 0.029 kg/m2; 95% CI, -0.183 to 0.240, P = 0.790) or estradiol levels (weighted mean difference 0.016 pg/mL; 95% CI, -1.220 to 1.252, P = 0.980). CONCLUSIONS Melatonin seems to improve physical symptoms in menopausal women, but the general menopausal symptoms, sleep quality, mood state, estradiol levels, and BMI did not improve under melatonin intervention. However, multiple large-scale clinical randomized trials are needed to validate our conclusions.
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Kuang X, Liu C, Guo X, Li K, Deng Q, Li D. The combination effect of vitamin K and vitamin D on human bone quality: a meta-analysis of randomized controlled trials. Food Funct 2021; 11:3280-3297. [PMID: 32219282 DOI: 10.1039/c9fo03063h] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Previous studies did not draw a consistent conclusion about the effects of vitamin K combined with vitamin D on human skeletal quality. METHOD AND FINDINGS A comprehensive search on Web of Science, PubMed, Embase and the Cochrane Library (from 1950 to February 2020) and bibliographies of relevant articles was undertaken, with the meta-analysis of eight randomized controlled trials (RCTs) including a total of 971 subjects. Vitamin K combined with vitamin D significantly increased the total bone mineral density (BMD): the pooled effect size was 0.316 [95% CI (confidence interval), 0.031 to 0.601]. A significant decrease in undercarboxylated osteocalcin (-0.945, -1.113 to -0.778) can be observed with the combination of vitamin K and D. Simultaneously, subgroup analysis showed that K2 or vitamin K (not specified) supplement was less than 500 μg d-1, which when combined with vitamin D can significantly increase the total BMD compared with the control group fed a normal diet or the group with no treatment (0.479, 0.101 to 0.858 and 0.570, 0.196 to 0.945). CONCLUSIONS The combination of vitamin K and D can significantly increase the total BMD and significantly decrease undercarboxylated osteocalcin, and a more favorable effect is expected when vitamin K2 is used.
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Affiliation(s)
- Xiaotong Kuang
- Institute of Nutrition and Health, Qingdao University, Qingdao, China.
| | - Chunxiao Liu
- Institute of Nutrition and Health, Qingdao University, Qingdao, China.
| | - Xiaofei Guo
- Institute of Nutrition and Health, Qingdao University, Qingdao, China.
| | - Kelei Li
- Institute of Nutrition and Health, Qingdao University, Qingdao, China.
| | - Qingxue Deng
- Institute of Nutrition and Health, Qingdao University, Qingdao, China.
| | - Duo Li
- Institute of Nutrition and Health, Qingdao University, Qingdao, China.
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Abstract
PURPOSE OF REVIEW Nutrition influences skeletal health throughout the lifespan, from the impact of maternal intakes during development, through the development of peak bone mass, to the rate of bone loss during aging. However, there are limited data available on the effects of nutritional supplements on bone density, let alone fracture risk. This review will assess the current literature, focusing on human studies, and emphasizing nutrients where bone density or fracture data are available. RECENT FINDINGS Calcium and vitamin D supplements, in combination, reduce fracture risk, particularly in populations with low intakes. Extensive recent analyses have supported the safety of these interventions at recommended intakes. There is growing evidence that specific isoflavones may improve bone density although fracture data are lacking. Multiple other nutrient supplements may benefit skeletal health, but data are limited. The effect size of nutrient interventions are relatively small, requiring large sample sizes for trials with bone outcomes, may be difficult to blind, and the impact of supplementation may depend on baseline intake. However, nutrition is the only intervention that can be implemented life long and on a population wide basis. Further investigation is needed into the potential benefits of nutritional supplements to determine in which settings supplements may add benefit in addition to dietary intakes.
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Affiliation(s)
- Laila S Tabatabai
- Division of Endocrinology, Houston Methodist Hospital, Houston, TX, USA
| | - Deborah E Sellmeyer
- Division of Endocrinology, Gerontology, and Metabolism, School of Medicine, Stanford University, 300 Pasteur Drive, Room S025, Palo Alto, Stanford, CA, 94305-5103, USA.
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Guo YF, Su T, Yang M, Li CJ, Guo Q, Xiao Y, Huang Y, Liu Y, Luo XH. The role of autophagy in bone homeostasis. J Cell Physiol 2021; 236:4152-4173. [PMID: 33452680 DOI: 10.1002/jcp.30111] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/24/2020] [Accepted: 10/05/2020] [Indexed: 12/15/2022]
Abstract
Autophagy is an evolutionarily conserved intracellular process and is considered one of the main catabolism pathways. In the process of autophagy, cells are digested nonselectively or selectively to recover nutrients and energy, so it is regarded as an antiaging process. In addition to the essential role of autophagy in cellular homeostasis, autophagy is a stress response mechanism for cell survival. Here, we review recent literature describing the pathway of autophagy and its role in different bone cell types, including osteoblasts, osteoclasts, and osteocytes. Also discussed is the mechanism of autophagy in bone diseases associated with bone homeostasis, including osteoporosis and Paget's disease. Finally, we discuss the application of autophagy regulators in bone diseases. This review aims to introduce autophagy, summarize the understanding of its relevance in bone physiology, and discuss its role and therapeutic potential in the pathogenesis of bone diseases such as osteoporosis.
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Affiliation(s)
- Yi-Fan Guo
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Tian Su
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Mi Yang
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Chang-Jun Li
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Qi Guo
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Ye Xiao
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Yan Huang
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Ya Liu
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Xiang-Hang Luo
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital of Central South University, Changsha, Hunan, China
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Zhu S, Häussling V, Aspera-Werz RH, Chen T, Braun B, Weng W, Histing T, Nussler AK. Bisphosphonates Reduce Smoking-Induced Osteoporotic-Like Alterations by Regulating RANKL/OPG in an Osteoblast and Osteoclast Co-Culture Model. Int J Mol Sci 2020; 22:ijms22010053. [PMID: 33374546 PMCID: PMC7793101 DOI: 10.3390/ijms22010053] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 12/21/2020] [Indexed: 02/07/2023] Open
Abstract
Co-culture models have become mandatory for obtaining better insights into bone homeostasis, which relies on the balance between osteoblasts and osteoclasts. Cigarette smoking (CS) has been proven to increase the risk of osteoporosis; however, there is currently no proven treatment for osteoporosis in smokers excluding cessation. Bisphosphonates (BPs) are classical anti-osteoclastic drugs that are commonly used in examining the suitability of bone co-culture systems in vitro as well as to verify the response to osteoporotic stimuli. In the present study, we tested the effects of BPs on cigarette smoke extract (CSE)-affected cells in the co-culture of osteoblasts and osteoclasts. Our results showed that BPs were able to reduce CSE-induced osteoporotic alterations in the co-culture of osteoblasts and osteoclasts such as decreased matrix remodeling, enhanced osteoclast activation, and an up-regulated receptor activator of nuclear factor (NF)-kB-ligand (RANKL)/osteoprotegerin (OPG) ratio. In summary, BPs may be an effective alternative therapy for reversing osteoporotic alterations in smokers, and the potential mechanism is through modulation of the RANKL/OPG ratio.
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Goswami N, Abulafia C, Vigo D, Moser M, Cornelissen G, Cardinali D. Falls Risk, Circadian Rhythms and Melatonin: Current Perspectives. Clin Interv Aging 2020; 15:2165-2174. [PMID: 33204081 PMCID: PMC7666981 DOI: 10.2147/cia.s283342] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 11/03/2020] [Indexed: 01/31/2023] Open
Abstract
Aging is associated with weakening of the circadian system. The circadian amplitude of most physiological variables is reduced, while the circadian phase becomes more labile and tends to occur earlier with advancing age. As the incidence of falls in older persons could follow circadian variations, a better understanding of conditions in which falls occur can lead to the implementation of countermeasures (such as adjusting the scheduling of hospital staff, or changing the timing of anti-hypertensive medication if falls are related to undesirable circadian patterns of blood pressure and/or heart rate). This includes knowing the times of the day, days of the week, and times of the year when falls are more likely to occur at home or in the hospital. Additionally, the links between aging processes and factors associated with an increased risk of developing autonomic dysfunction are well established. A strong association between heart rate variability indexes and aging has been shown. Circadian rhythms of autonomous nervous system activity may play important role for maintenance of orthostatic tolerance. Whether one is concerned with disease prediction and prevention or maintenance of healthy aging, the study of circadian rhythms and the broader time structure underlying physiopathology is helpful in terms of screening, early diagnosis and prognosis, as well as the timely institution of prophylactic and/or palliative/curative treatment. Timing the administration of such treatment as a function of circadian (and other) rhythms also could lead to reduction of falls in older persons. Finally, a prominent circadian rhythm characterizes melatonin, which peaks during the night. The circadian amplitude of melatonin decreases as a function of age, raising the questions whether such a decrease in the circadian amplitude of melatonin relates to a higher risk of falls and, if so, whether melatonin supplementation may be an effective countermeasure. This narrative review assesses the relationships between fall risk and the potential role circadian rhythms and melatonin play in mitigating this risk. We aim to provide healthcare workers adequate information about fall risk in older persons, including the potential role of the circadian rhythms and/or melatonin, as well as to lay foundations for future fall prevention interventional studies.
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Affiliation(s)
- Nandu Goswami
- Physiology Division, Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Medical University of Graz, Graz, Austria
| | - Carolina Abulafia
- Institute for Biomedical Research (BIOMED), Catholic University of Argentina (UCA) and National Scientific and Technical Research Council (CONICET), Autonomous City of Buenos Aires, Argentina
| | - Daniel Vigo
- Institute for Biomedical Research (BIOMED), Catholic University of Argentina (UCA) and National Scientific and Technical Research Council (CONICET), Autonomous City of Buenos Aires, Argentina
| | - Maximilian Moser
- Physiology Division, Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Medical University of Graz, Graz, Austria
| | | | - Daniel Cardinali
- Institute for Biomedical Research (BIOMED), Catholic University of Argentina (UCA) and National Scientific and Technical Research Council (CONICET), Autonomous City of Buenos Aires, Argentina
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Lu J, Zhou Z, Ma J, Lu N, Lei Z, Du D, Chen A. Tumour necrosis factor-α promotes BMHSC differentiation by increasing P2X7 receptor in oestrogen-deficient osteoporosis. J Cell Mol Med 2020; 24:14316-14324. [PMID: 33169524 PMCID: PMC7753841 DOI: 10.1111/jcmm.16048] [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: 09/15/2020] [Revised: 10/05/2020] [Accepted: 10/13/2020] [Indexed: 12/13/2022] Open
Abstract
The exact mechanism of tumour necrosis factor α (TNF‐α) promoting osteoclast differentiation is not completely clear. A variety of P2 purine receptor subtypes have been confirmed to be widely involved in bone metabolism. Thus, the purpose of this study was to explore whether P2 receptor is involved in the differentiation of osteoclasts. Mouse bone marrow haematopoietic stem cells (BMHSCs) were co‐cultured with TNF‐α to explore the effect of TNF‐α on osteoclast differentiation and bone resorption capacity in vitro, and changes in the P2 receptor were detected at the same time. The P2 receptor was silenced and overexpressed to explore the effect on differentiation of BMHSCs into osteoclasts. In an in vivo experiment, the animal model of PMOP was established in ovariectomized mice, and anti‐TNF‐α intervention was used to detect the ability of BMHCs to differentiate into osteoclasts as well as the expression of the P2 receptor. It was confirmed in vitro that TNF‐α at a concentration of 20 ng/mL up‐regulated the P2X7 receptor of BMHSCs through the PI3k/Akt signalling pathway, promoted BMHSCs to differentiate into a large number of osteoclasts and enhanced bone resorption. In vivo experiments showed that more P2X7 receptor positive osteoclasts were produced in postmenopausal osteoporotic mice. Anti‐TNF‐α could significantly delay the progression of PMOP by inhibiting the production of osteoclasts. Overall, our results revealed a novel function of the P2X7 receptor and suggested that suppressing the P2X7 receptor may be an effective strategy to delay bone formation in oestrogen deficiency‐induced osteoporosis.
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Affiliation(s)
- Jiajia Lu
- Department of Orthopedic Trauma Surgery, Shanghai Changzheng Hospital, Shanghai, China
| | - Zhibin Zhou
- Department of Orthopaedics, General Hospital of Northern Theater Command, Shenyang, China
| | - Jun Ma
- Department of Orthopedic Trauma Surgery, Shanghai Changzheng Hospital, Shanghai, China
| | - Nan Lu
- Department of Orthopedic Trauma Surgery, Shanghai Changzheng Hospital, Shanghai, China
| | - Zhu Lei
- Department of Orthopedic Trauma Surgery, Shanghai Changzheng Hospital, Shanghai, China
| | - Di Du
- Department of Orthopedic Trauma Surgery, Shanghai Changzheng Hospital, Shanghai, China
| | - Aimin Chen
- Department of Orthopedic Trauma Surgery, Shanghai Changzheng Hospital, Shanghai, China
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Ferlazzo N, Andolina G, Cannata A, Costanzo MG, Rizzo V, Currò M, Ientile R, Caccamo D. Is Melatonin the Cornucopia of the 21st Century? Antioxidants (Basel) 2020; 9:antiox9111088. [PMID: 33167396 PMCID: PMC7694322 DOI: 10.3390/antiox9111088] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/26/2020] [Accepted: 11/03/2020] [Indexed: 12/12/2022] Open
Abstract
Melatonin, an indoleamine hormone produced and secreted at night by pinealocytes and extra-pineal cells, plays an important role in timing circadian rhythms (24-h internal clock) and regulating the sleep/wake cycle in humans. However, in recent years melatonin has gained much attention mainly because of its demonstrated powerful lipophilic antioxidant and free radical scavenging action. Melatonin has been proven to be twice as active as vitamin E, believed to be the most effective lipophilic antioxidant. Melatonin-induced signal transduction through melatonin receptors promotes the expression of antioxidant enzymes as well as inflammation-related genes. Melatonin also exerts an immunomodulatory action through the stimulation of high-affinity receptors expressed in immunocompetent cells. Here, we reviewed the efficacy, safety and side effects of melatonin supplementation in treating oxidative stress- and/or inflammation-related disorders, such as obesity, cardiovascular diseases, immune disorders, infectious diseases, cancer, neurodegenerative diseases, as well as osteoporosis and infertility.
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Affiliation(s)
| | | | | | | | | | | | | | - Daniela Caccamo
- Correspondence: ; Tel.: +39-090-221-3386 or +39-090-221-3389
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Imerb N, Thonusin C, Chattipakorn N, Chattipakorn SC. Aging, obese-insulin resistance, and bone remodeling. Mech Ageing Dev 2020; 191:111335. [DOI: 10.1016/j.mad.2020.111335] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 08/14/2020] [Indexed: 02/08/2023]
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40
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Igarashi-Migitaka J, Seki A, Ikegame M, Honda M, Sekiguchi T, Mishima H, Shimizu N, Matsubara H, Srivastav AK, Hirayama J, Maruyama Y, Kamijo-Ikemori A, Hirata K, Hattori A, Suzuki N. Oral administration of melatonin contained in drinking water increased bone strength in naturally aged mice. Acta Histochem 2020; 122:151596. [PMID: 32778234 DOI: 10.1016/j.acthis.2020.151596] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 07/01/2020] [Accepted: 07/09/2020] [Indexed: 12/20/2022]
Abstract
Melatonin has recently been found to be a possible new regulator of bone metabolism. However, the influence of melatonin in natural age-related osteoporosis has not been fully elucidated yet, although there have been some reports regarding postmenopausal osteoporosis with melatonin treatments. The present study investigated the effects of long-term melatonin administration during the aging process on bone metabolism. Using quantitative computed tomography methods, we found that the total bone density of both the femur metaphysis and diaphysis decreased significantly in 20-month-old male mice. In the metaphysis, both trabecular bone mass and Polar-Strength Strain Index (SSI), which is an index of bone strength, decreased significantly. Judging from bone histomorphometry analysis, trabecular bone in 20-month-old male mice decreases significantly with age and is small and sparse, as compared to that of 4-month-old male mice. Loss of trabecular bone is one possible cause of loss of bone strength in the femoral bone. In the metaphysis, the melatonin administration group had significantly higher trabecular bone density than the non-administration group. The Polar-SSI, cortical area, and periosteal circumference in the diaphysis was also significantly higher with melatonin treatments. Since the melatonin receptor, MT2, was detected in both osteoblasts and osteoclasts of the femoral bone of male mice, we expect that melatonin acts on osteoblasts and osteoclasts to maintain the bone strength of the diaphysis and metaphysis. Thus, melatonin is a potential drug for natural age-related osteoporosis.
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Borciani G, Montalbano G, Baldini N, Cerqueni G, Vitale-Brovarone C, Ciapetti G. Co-culture systems of osteoblasts and osteoclasts: Simulating in vitro bone remodeling in regenerative approaches. Acta Biomater 2020; 108:22-45. [PMID: 32251782 DOI: 10.1016/j.actbio.2020.03.043] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 03/20/2020] [Accepted: 03/30/2020] [Indexed: 02/08/2023]
Abstract
Bone is an extremely dynamic tissue, undergoing continuous remodeling for its whole lifetime, but its regeneration or augmentation due to bone loss or defects are not always easy to obtain. Bone tissue engineering (BTE) is a promising approach, and its success often relies on a "smart" scaffold, as a support to host and guide bone formation through bone cell precursors. Bone homeostasis is maintained by osteoblasts (OBs) and osteoclasts (OCs) within the basic multicellular unit, in a consecutive cycle of resorption and formation. Therefore, a functional scaffold should allow the best possible OB/OC cooperation for bone remodeling, as happens within the bone extracellular matrix in the body. In the present work OB/OC co-culture models, with and without scaffolds, are reviewed. These experimental systems are intended for different targets, including bone remodeling simulation, drug testing and the assessment of biomaterials and 3D scaffolds for BTE. As a consequence, several parameters, such as cell type, cell ratio, culture medium and inducers, culture times and setpoints, assay methods, etc. vary greatly. This review identifies and systematically reports the in vitro methods explored up to now, which, as they allow cellular communication, more closely resemble bone remodeling and/or the regeneration process in the framework of BTE. STATEMENT OF SIGNIFICANCE: Bone is a dynamic tissue under continuous remodeling, but spontaneous healing may fail in the case of excessive bone loss which often requires valid alternatives to conventional treatments to restore bone integrity, like bone tissue engineering (BTE). Pre-clinical evaluation of scaffolds for BTE requires in vitro testing where co-cultures combining innovative materials with osteoblasts (OBs) and osteoclasts (OCs) closely mimic the in vivo repair process. This review considers the direct and indirect OB/OC co-cultures relevant to BTE, from the early mouse-cell models to the recent bone regenerative systems. The co-culture modeling of bone microenvironment provides reliable information on bone cell cross-talk. Starting from improved knowledge on bone remodeling, bone disease mechanisms may be understood and new BTE solutions are designed.
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Fang N, Hu C, Sun W, Xu Y, Gu Y, Wu L, Peng Q, Reiter RJ, Liu L. Identification of a novel melatonin-binding nuclear receptor: Vitamin D receptor. J Pineal Res 2020; 68:e12618. [PMID: 31631405 DOI: 10.1111/jpi.12618] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 10/09/2019] [Accepted: 10/14/2019] [Indexed: 02/06/2023]
Abstract
Previous studies confirmed that melatonin regulates Runx2 expression but the mechanism is unclear. There is a direct interaction between Runx2 and the vitamin D receptor (VDR). Herein, we observed a direct interaction between melatonin and the VDR but not Runx2 using isothermal titration calorimetry. Furthermore, this direct binding was detected only in the C-terminal ligand binding domain (LBD) of the VDR but not in the N-terminal DNA-binding domain (DBD) or the hinge region. Spectrophotometry indicated that melatonin and vitamin D3 (VD3) had similar uptake rates, but melatonin's uptake was significantly inhibited by VD3 until the concentration of melatonin was obviously higher than that of VD3 in a preosteoblastic cell line MC3T3-E1. GST pull-down and yeast two-hybrid assay showed that the interactive smallest fragments were on the 319-379 position of Runx2 and the N-terminus 110-amino acid DBD of the VDR. Electrophoretic mobility shift assay (EMSA) demonstrated that Runx2 facilitated the affinity between the VDR and its specific DNA substrate, which was further documented by a fluorescent EMSA assay where Cy3 labeled Runx2 co-localized with the VDR-DNA complex. Another fluorescent EMSA assay confirmed that the binding of the VDR to Runx2 was significantly enhanced with an increasing concentrations of the VDR, especially in the presence of melatonin; it was further documented using a co-immunoprecipitation assay that this direct interaction was markedly enhanced by melatonin treatment in the MC3T3-E1 cells. Thus, the VDR is a novel melatonin-binding nuclear receptor, and melatonin indirectly regulates Runx2 when it directly binds to the LBD and the DBD of the VDR, respectively.
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Affiliation(s)
- Nan Fang
- Department of Trauma Orthopaedics, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Chunyi Hu
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Wenqi Sun
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Ying Xu
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yeqi Gu
- Department of Trauma Orthopaedics, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Le Wu
- Department of Trauma Orthopaedics, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Qing Peng
- Department of Trauma Orthopaedics, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Russel J Reiter
- Department of Cellular & Structural Biology, UT Health Science Center, San Antonio, TX, USA
| | - Lifeng Liu
- Department of Trauma Orthopaedics, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
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Knani L, Venditti M, Kechiche S, Banni M, Messaoudi I, Minucci S. Melatonin protects bone against cadmium-induced toxicity via activation of Wnt/β-catenin signaling pathway. Toxicol Mech Methods 2019; 30:237-245. [PMID: 31809235 DOI: 10.1080/15376516.2019.1701595] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Among heavy metals, cadmium (Cd) is one of the most toxic for health due to it accumulation in several tissues including bone. Since melatonin (MLT) favors new bone formation through several pathways including Wnt/β-catenin, here we assessed whether MLT has a protective role against Cd induced toxicity in the rat bone tissue. Adult male Wistar rats receiving 50 mg CdCl2/L and/or 3 mg/L MLT were used and were sacrificed 30 days after the treatment. Femurs and plasma were collected and analyzed by various biochemicals, molecular and histological investigation. The results showed that Cd exposure induced bone disorder characterized by histopathological alterations, a decreased alkaline phosphatase activity and plasmatic concentration of osteocalcin. Moreover, also the expression levels of some osteogenic-related genes (Runx2, Ocn and Alp) were down-regulated after Cd treatment. Since mechanistically Cd toxicity reduced the Kinase activity of GSK3β and protein levels of Wnt3a and β-catenin, we observed that MLT administration significantly ameliorated the toxic effects induced by the metal. Our findings provide clues about a potential protective effect of MLT against Cd-induced bone metabolism destruction and that the protection was partially mediated via the Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Latifa Knani
- LR11ES41: Génétique, Biodiversité et Valorisation des Bioressources, Institut Supérieur de Biotechnologie, Université de Monastir, Monastir, Tunisia
| | - Massimo Venditti
- Dipartimento di Medicina Sperimentale, Sez. Fisiologia Umana e Funzioni Biologiche Integrate "F. Bottazzi", Università della Campania "Luigi Vanvitelli", Napoli, Italy
| | - Safa Kechiche
- LR11ES41: Génétique, Biodiversité et Valorisation des Bioressources, Institut Supérieur de Biotechnologie, Université de Monastir, Monastir, Tunisia
| | - Mohamed Banni
- UR13AGR08: Biochimie et Ecotoxicologie, ISA Chott-Mariem, Université de Sousse, Sousse, Tunisia
| | - Imed Messaoudi
- LR11ES41: Génétique, Biodiversité et Valorisation des Bioressources, Institut Supérieur de Biotechnologie, Université de Monastir, Monastir, Tunisia
| | - Sergio Minucci
- Dipartimento di Medicina Sperimentale, Sez. Fisiologia Umana e Funzioni Biologiche Integrate "F. Bottazzi", Università della Campania "Luigi Vanvitelli", Napoli, Italy
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Knani L, Bartolini D, Kechiche S, Tortoioli C, Murdolo G, Moretti M, Messaoudi I, Reiter RJ, Galli F. Melatonin prevents cadmium-induced bone damage: First evidence on an improved osteogenic/adipogenic differentiation balance of mesenchymal stem cells as underlying mechanism. J Pineal Res 2019; 67:e12597. [PMID: 31340072 DOI: 10.1111/jpi.12597] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 06/25/2019] [Accepted: 06/28/2019] [Indexed: 12/13/2022]
Abstract
Melatonin (MLT) plays a role in preserving bone health, a function that may depend on homeostatic effects on both mature osteoblasts and mesenchymal stem cells (MSCs) of the bone tissue. In this study, these functions of MLT have been investigated in rat bone (femur) and in human adipose MSC (hMSC) during chronic exposure to low-grade cadmium (Cd) toxicity, a serious public health concern. The in vivo findings demonstrate that MLT protects against Cd-induced bone metabolism disruption and accumulation of bone marrow adipocytes, a cue of impaired osteogenic potential of skeletal MSC niches. This latter symptom was recapitulated in hMSCs in which Cd toxicity stimulated adipogenic differentiation. MLT was found to rescue, at least in part, the osteogenic differentiation properties of these cells. This study reports on a new bone cytoprotection function of MLT pertinent to Cd toxicity and its interfering effect on skeletal MSC differentiation properties that is worth investigating for its possible impact on human bone pathophysiology.
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Affiliation(s)
- Latifa Knani
- Laboratoire LR11ES41 Génétique Biodiversité et Valorisation des Bio-ressources, Institut Supérieur de Biotechnologie de Monastir, Université de Monastir, Monastir, Tunisie
| | - Desirée Bartolini
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Safa Kechiche
- Laboratoire LR11ES41 Génétique Biodiversité et Valorisation des Bio-ressources, Institut Supérieur de Biotechnologie de Monastir, Université de Monastir, Monastir, Tunisie
| | - Cristina Tortoioli
- Section of Internal Medicine, Endocrine and Metabolic Sciences, University of Perugia, Perugia, Italy
| | - Giuseppe Murdolo
- Section of Internal Medicine, Endocrine and Metabolic Sciences, University of Perugia, Perugia, Italy
| | - Massimo Moretti
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Imed Messaoudi
- Laboratoire LR11ES41 Génétique Biodiversité et Valorisation des Bio-ressources, Institut Supérieur de Biotechnologie de Monastir, Université de Monastir, Monastir, Tunisie
| | - Russel J Reiter
- Department of Cellular and Structural Biology, UT Health Science Center, San Antonio, TX, USA
| | - Francesco Galli
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
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Wang X, Liang T, Zhu Y, Qiu J, Qiu X, Lian C, Gao B, Peng Y, Liang A, Zhou H, Yang X, Liao Z, Li Y, Xu C, Su P, Huang D. Melatonin prevents bone destruction in mice with retinoic acid-induced osteoporosis. Mol Med 2019; 25:43. [PMID: 31462213 PMCID: PMC6714316 DOI: 10.1186/s10020-019-0107-0] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 07/24/2019] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND The protective effect of melatonin against bone metabolism imbalance in osteoporosis (OP) induced by drugs such as retinoic acid (RA) is unclear. The aim of this study was to explore the role of melatonin in bone destruction based on a mouse model. METHODS RA-induced OP model mice were established. To assess the effect of melatonin on these mice, micro-CT was used to characterize the trabecular structure of normal mice and those treated with RA (model), RA + low-dose melatonin (Mlt-L), RA + high-dose melatonin (Mlt-H), and RA + alendronate sodium (positive control). The shape of the trabecular bone, the length and diameter of the femoral head and the height and diameter of vertebra(L1) of each group were also measured and the number of osteoclasts was determined by Tartrate-resistant acid phosphatase (TRACP) staining. Meanwhile, the expression of alkaline phosphatase (ALP) was evaluated by immunohistochemistry assays. The differences between groups in terms of liver and kidney oxidation-related indexes and serum and urinary indicators related to bone metabolism were also analyzed. Furthermore, qRT-PCR and western blotting were used to evaluate the effect of melatonin on osteogenic and osteoclastic differentiation in MC3T3-E1 and RAW264.7 cells, respectively. RESULTS RA induction led to a decrease in the amount and density of trabecular bone, a decrease in the length and diameter of the femur and height, diameter of the vertebra (L1), a decrease in bone mass and density and the expression of ALP, and an increase in the number of osteoclasts. Melatonin treatment alleviated these effects induced by RA, increasing the amount of trabecular bone in OP mice, improving the microstructure of the femur and vertebra(L1) and increasing bone mass bone density and the expression of ALP, as well as decreasing the number of osteoclasts. Additionally, blood and urinary bone metabolism-related indicators showed that melatonin promoted bone formation and inhibited bone resorption. Determination of oxidant and antioxidant biomarkers in the livers and kidneys of the mice revealed that melatonin promoted the antioxidant level and suppressed the level of oxidant molecules in these organs. In vitro, RA promoted osteoclasts and inhibit osteogenesis by increasing oxidative stress levels in the RAW264.7 and MC3T3-E1 cells, but melatonin reversed this effect. Melatonin may, therefore, play a role in the ERK/SMAD and NF-κB pathways. CONCLUSIONS Melatonin can alleviate bone loss in RA-induced OP model mice, repair the trabecular microstructure, and promote bone formation. These effects may be related to reducing oxidation levels in vivo and vitro through the ERK/SMAD and NF-κB pathways.
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Affiliation(s)
- Xudong Wang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, #107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China
| | - Tongzhou Liang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, #107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China
| | - Yuanxin Zhu
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, #107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China
| | - Jincheng Qiu
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, #107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China
| | - Xianjian Qiu
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, #107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China
| | - Chengjie Lian
- Department of Orthopedics, the First Affiliated Hospital of Sun Yat-sen University, #58 Zhongshan Road II, Guangzhou, 510080, Guangdong, China
| | - Bo Gao
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, #107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China
| | - Yan Peng
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, #107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China
| | - Anjing Liang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, #107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China
| | - Hang Zhou
- Department of Orthopedics, the First Affiliated Hospital of Sun Yat-sen University, #58 Zhongshan Road II, Guangzhou, 510080, Guangdong, China
| | - Xiaoming Yang
- Department of Orthopedics, the First Affiliated Hospital of Sun Yat-sen University, #58 Zhongshan Road II, Guangzhou, 510080, Guangdong, China
| | - Zhiheng Liao
- Department of Orthopedics, the First Affiliated Hospital of Sun Yat-sen University, #58 Zhongshan Road II, Guangzhou, 510080, Guangdong, China
| | - Yongyong Li
- Research Centre for Translational Medicine, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Caixia Xu
- Research Centre for Translational Medicine, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Peiqiang Su
- Department of Orthopedics, the First Affiliated Hospital of Sun Yat-sen University, #58 Zhongshan Road II, Guangzhou, 510080, Guangdong, China.
| | - Dongsheng Huang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, #107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China.
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Reactive Oxygen Species in Osteoclast Differentiation and Possible Pharmaceutical Targets of ROS-Mediated Osteoclast Diseases. Int J Mol Sci 2019; 20:ijms20143576. [PMID: 31336616 PMCID: PMC6678498 DOI: 10.3390/ijms20143576] [Citation(s) in RCA: 245] [Impact Index Per Article: 49.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 07/19/2019] [Accepted: 07/21/2019] [Indexed: 12/18/2022] Open
Abstract
Reactive oxygen species (ROS) and free radicals are essential for transmission of cell signals and other physiological functions. However, excessive amounts of ROS can cause cellular imbalance in reduction–oxidation reactions and disrupt normal biological functions, leading to oxidative stress, a condition known to be responsible for the development of several diseases. The biphasic role of ROS in cellular functions has been a target of pharmacological research. Osteoclasts are derived from hematopoietic progenitors in the bone and are essential for skeletal growth and remodeling, for the maintenance of bone architecture throughout lifespan, and for calcium metabolism during bone homeostasis. ROS, including superoxide ion (O2−) and hydrogen peroxide (H2O2), are important components that regulate the differentiation of osteoclasts. Under normal physiological conditions, ROS produced by osteoclasts stimulate and facilitate resorption of bone tissue. Thus, elucidating the effects of ROS during osteoclast differentiation is important when studying diseases associated with bone resorption such as osteoporosis. This review examines the effect of ROS on osteoclast differentiation and the efficacy of novel chemical compounds with therapeutic potential for osteoclast related diseases.
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Li T, Jiang S, Lu C, Yang W, Yang Z, Hu W, Xin Z, Yang Y. Melatonin: Another avenue for treating osteoporosis? J Pineal Res 2019; 66:e12548. [PMID: 30597617 DOI: 10.1111/jpi.12548] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 12/24/2018] [Accepted: 12/24/2018] [Indexed: 12/28/2022]
Abstract
Melatonin is a signal molecule that modulates the biological circadian rhythms of vertebrates. Melatonin deficiency is thought to be associated with several disorders, including insomnia, cancer, and cardiovascular and neurodegenerative diseases. Accumulating evidence has also indicated that melatonin may be involved in the homeostasis of bone metabolism. Age-related reductions in melatonin are considered to be critical factors in bone loss and osteoporosis with aging. Thus, serum melatonin levels might serve as a biomarker for the early detection and prevention of osteoporosis. Compared to conventional antiosteoporosis medicines, which primarily inhibit bone loss, melatonin both suppresses bone loss and promotes new bone formation. Mechanistically, by activating melatonin receptor 2 (MT2), melatonin upregulates the gene expression of alkaline phosphatase (ALP), bone morphogenetic protein 2 (BMP2), BMP6, osteocalcin, and osteoprotegerin to promote osteogenesis while inhibiting the receptor activator of NF-kB ligand (RANKL) pathway to suppress osteolysis. In view of the distinct actions of melatonin on bone metabolism, we hypothesize that melatonin may be a novel remedy for the prevention and clinical treatment of osteoporosis.
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Affiliation(s)
- Tian Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences, Northwest University, Xi'an, China
- School of Basic Medicine, The Fourth Military Medical University, Xi'an, China
| | - Shuai Jiang
- Department of Aerospace Medicine, The Fourth Military Medical University, Xi'an, China
| | - Chenxi Lu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences, Northwest University, Xi'an, China
| | - Wenwen Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences, Northwest University, Xi'an, China
| | - Zhi Yang
- School of Basic Medicine, The Fourth Military Medical University, Xi'an, China
| | - Wei Hu
- School of Basic Medicine, The Fourth Military Medical University, Xi'an, China
| | - Zhenlong Xin
- Graduate School, The Fourth Military Medical University, Xi'an, China
| | - Yang Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences, Northwest University, Xi'an, China
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Identification of key genes and transcription factors in aging mesenchymal stem cells by DNA microarray data. Gene 2019; 692:79-87. [PMID: 30641220 DOI: 10.1016/j.gene.2018.12.063] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 12/31/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND Mesenchymal stem cells (MSCs) are multipotent cells that can be widely used in stem cell therapy. However, few studies have revealed the potential mechanisms of the changes in aging MSC. MATERIALS AND METHODS In this study, microarray data GSE35955 was downloaded from the Gene Expression Omnibus database. Then limma package in R was used to filtrate differentially expressed genes (DEGs), Transcription factors (TFs) were predicted by DCGL package. After predicting TFs, protein-protein interaction (PPI) network and TF-mediated transcriptional regulation network were constructed. The functional and pathway enrichment analysis of screened DEGs, hub genes and TFs were conducted by the DAVID. RESULTS Totally 156 up-regulated DEGs and 343 down-regulated DEGs were obtained. 6 hub genes (CTNNB1, PPP2R1A, FYN, MAPK1, PIK3C2A and EP300) were obtained from PPI network. 11 TFs (CREB1, CUX1, EGR1, EP300, FOXC1, HSF2, MEF2A, PLAU, SP1, STAT1 and USF1) for DEGs were predicted and 2 highly scored co-expression relationships (EP300-PPP2R1A and STAT1-FOXC1) were acquired from the TF-mediated transcriptional regulation network. CONCLUSIONS The discovery of the hub genes, TFs and pathways might contribute to the understanding of genetic and molecular functions of aging-related changes in MSC. Further validation studies on genes and TFs such as CTNNB1, FYN, PPP2R1A, MAPK1, EP300 and related biological processes and pathways, including adherens junction, DNA damage caused from oxidative stress, attribution of telomere, MSC differentiation and epigenetic regulation, are urgent for clinical prevention and treatment.
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Luo C, Yang Q, Liu Y, Zhou S, Jiang J, Reiter RJ, Bhattacharya P, Cui Y, Yang H, Ma H, Yao J, Lawler SE, Zhang X, Fu J, Rozental R, Aly H, Johnson MD, Chiocca EA, Wang X. The multiple protective roles and molecular mechanisms of melatonin and its precursor N-acetylserotonin in targeting brain injury and liver damage and in maintaining bone health. Free Radic Biol Med 2019; 130:215-233. [PMID: 30315933 DOI: 10.1016/j.freeradbiomed.2018.10.402] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 09/01/2018] [Accepted: 10/02/2018] [Indexed: 12/20/2022]
Abstract
Melatonin is a neurohormone associated with sleep and wakefulness and is mainly produced by the pineal gland. Numerous physiological functions of melatonin have been demonstrated including anti-inflammation, suppressing neoplastic growth, circadian and endocrine rhythm regulation, and its potent antioxidant activity as well as its role in regeneration of various tissues including the nervous system, liver, bone, kidney, bladder, skin, and muscle, among others. In this review, we summarize the recent advances related to the multiple protective roles of melatonin receptor agonists, melatonin and N-acetylserotonin (NAS), in brain injury, liver damage, and bone health. Brain injury, including traumatic brain injury, ischemic stroke, intracerebral hemorrhage, subarachnoid hemorrhage, and newborn perinatal hypoxia-ischemia encephalopathy, is a major cause of mortality and disability. Liver disease causes serious public health problems and various factors including alcohol, chemical pollutants, and drugs induce hepatic damage. Osteoporosis is the most common bone disease in humans. Due in part to an aging population, both the cost of care of fracture patients and the annual fracture rate have increased steadily. Despite the discrepancy in the pathophysiological processes of these disorders, time frames and severity, they may share several common molecular mechanisms. Oxidative stress is considered to be a critical factor in these pathogeneses. We update the current state of knowledge related to the molecular processes, mainly including anti-oxidative stress, anti-apoptosis, autophagy dysfunction, and anti-inflammation as well as other properties of melatonin and NAS. Particularly, the abilities of melatonin and NAS to directly scavenge oxygen-centered radicals and toxic reactive oxygen species, and indirectly act through antioxidant enzymes are disscussed. In this review, we summarize the similarities and differences in the protection provided by melatonin and/or NAS in brain, liver and bone damage. We analyze the involvement of melatonin receptor 1A (MT1), melatonin receptor 1B (MT2), and melatonin receptor 1C (MT3) in the protection of melatonin and/or NAS. Additionally, we evaluate their potential clinical applications. The multiple mechanisms of action and multiple organ-targeted properties of melatonin and NAS may contribute to development of promising therapies for clinical trials.
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Affiliation(s)
- Chengliang Luo
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Qiang Yang
- Hubei Provincial Key Lab for Quality and Safety of Traditional Chinese Medicine Health Food, Jing Brand Research Institute, Daye, Hubei, China
| | - Yuancai Liu
- Hubei Provincial Key Lab for Quality and Safety of Traditional Chinese Medicine Health Food, Jing Brand Research Institute, Daye, Hubei, China
| | - Shuanhu Zhou
- Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jiying Jiang
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Department of Histology and Embryology, Weifang Medical University, Weifang, Shandong, China
| | - Russel J Reiter
- Department of Cellular and Structural Biology, University Texas Health Science Center, San Antonio, TX, USA
| | - Pallab Bhattacharya
- National Institute of Pharmaceutical Education and Research, Ahmedabad, India
| | - Yongchun Cui
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Hongwei Yang
- Department of Neurosurgery, University of Massachusetts Medical School, Worcester, MA, USA
| | - He Ma
- Third Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China
| | - Jiemin Yao
- Third Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China
| | - Sean E Lawler
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Xinmu Zhang
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jianfang Fu
- Department of Endocrinology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Renato Rozental
- Lab Neuroproteção & Estratégias Regenerativas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Hany Aly
- Department of Neonatology, Cleveland Clinic Children's Hospital, Cleveland, OH, USA
| | - Mark D Johnson
- Department of Neurosurgery, University of Massachusetts Medical School, Worcester, MA, USA
| | - E Antonio Chiocca
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Xin Wang
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
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Bao T, Zeng L, Yang K, Li Y, Ren F, Zhang Y, Gao Z. Can Melatonin Improve the Osteopenia of Perimenopausal and Postmenopausal Women? A Meta-Analysis. Int J Endocrinol 2019; 2019:5151678. [PMID: 31080477 PMCID: PMC6475537 DOI: 10.1155/2019/5151678] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 02/03/2019] [Accepted: 03/07/2019] [Indexed: 01/22/2023] Open
Abstract
OBJECTIVE To assess the effectiveness and safety of melatonin for perimenopausal and postmenopausal women with osteopenia. METHODS In this meta-analysis, data from randomized controlled trials were obtained to assess the effects of melatonin versus placebo or western medicine in perimenopausal and postmenopausal women with osteopenia. The study's registration number is CRD42018086238. The primary outcomes included bone mineral density (BMD) and T-score. RESULT From 551 articles retrieved, three trials involving 121 patients were included. Due to the high-to-substantial heterogeneity (BMD: I2=96.9%, P=0.000; T-score: I2=74.9%, and P=0.019), the statistical analysis of BMD and T-score was abandoned. A systematic review was undergone for the two outcomes. Compared with the control group, melatonin may increase osteocalcin (WMD 4.97; 95% CI 3.14, 6.79; P < 0.00001). CONCLUSION Based on current evidence, melatonin might be used as a safe nutritional supplement to improve bone density in perimenopausal and postmenopausal women, but its efficacy needs to be further affirmed.
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Affiliation(s)
- Tingting Bao
- Beijing University of Chinese Medicine, Beijing 100029, China
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Liuting Zeng
- Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Kailin Yang
- Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Yuehua Li
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Fengying Ren
- Beijing University of Chinese Medicine, Beijing 100029, China
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yulong Zhang
- Beijing University of Chinese Medicine, Beijing 100029, China
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Ziren Gao
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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