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Yucel N, Gulen H, Cakir Hatir P. Molecularly imprinted polymer nanoparticles for the recognition of ellagic acid. J Appl Polym Sci 2022. [DOI: 10.1002/app.52952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Necla Yucel
- Department of Bioengineering Faculty of Chemical and Metallurgical Engineering, Yıldız Technical University Istanbul Turkey
| | - Hatice Gulen
- Department of Molecular Biology and Genetics, Faculty of Engineering and Natural Sciences Istinye University Istanbul Turkey
| | - Pinar Cakir Hatir
- Department of Biomedical Engineering Faculty of Engineering and Architecture, Istanbul Arel University Istanbul Turkey
- Department of Biomedical Engineering, Faculty of Engineering and Natural Sciences Istinye University Istanbul Turkey
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2
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Xu Q, Cao Z, Xu J, Dai M, Zhang B, Lai Q, Liu X. Effects and mechanisms of natural plant active compounds for the treatment of osteoclast-mediated bone destructive diseases. J Drug Target 2021; 30:394-412. [PMID: 34859718 DOI: 10.1080/1061186x.2021.2013488] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
Bone-destructive diseases, caused by overdifferentiation of osteoclasts, reduce bone mass and quality, and disrupt bone microstructure, thereby causes osteoporosis, Paget's disease, osteolytic bone metastases, and rheumatoid arthritis. Osteoclasts, the only multinucleated cells with bone resorption function, are derived from haematopoietic progenitors of the monocyte/macrophage lineage. The regulation of osteoclast differentiation is considered an effective target for the treatment of bone-destructive diseases. Natural plant-derived products have received increasing attention in recent years due to their good safety profile, the preference of natural compounds over synthetic drugs, and their potential therapeutic and preventive activity against osteoclast-mediated bone-destructive diseases. In this study, we reviewed the research progress of the potential antiosteoclast active compounds extracted from medicinal plants and their molecular mechanisms. Active compounds from natural plants that inhibit osteoclast differentiation and functions include flavonoids, terpenoids, quinones, glucosides, polyphenols, alkaloids, coumarins, lignans, and limonoids. They inhibit bone destruction by downregulating the expression of osteoclast-specific marker genes (CTSK, MMP-9, TRAP, OSCAR, DC-STAMP, V-ATPase d2, and integrin av3) and transcription factors (c-Fos, NFATc1, and c-Src), prevent the effects of local factors (ROS, LPS, and NO), and suppress the activation of various signalling pathways (MAPK, NF-κB, Akt, and Ca2+). Therefore, osteoclast-targeting natural products are of great value in the prevention and treatment of bone destructive diseases.
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Affiliation(s)
- Qiang Xu
- Department of Orthopedics, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Zhiyou Cao
- Department of Orthopedics, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - JiaQiang Xu
- Department of Orthopedics, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Min Dai
- Department of Orthopedics, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Bin Zhang
- Department of Orthopedics, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Qi Lai
- Department of Orthopedics, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Xuqiang Liu
- Department of Orthopedics, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
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3
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Ihn HJ, Kim TH, Kim K, Kim GY, Jeon YJ, Choi YH, Bae JS, Kim JE, Park EK. 2-O-digalloyl-1,3,4,6-tetra-O-galloyl-β-D-glucose isolated from Galla Rhois suppresses osteoclast differentiation and function by inhibiting NF-κB signaling. BMB Rep 2020. [PMID: 31068248 PMCID: PMC6605525 DOI: 10.5483/bmbrep.2019.52.6.063] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Natural compounds isolated from medicinal herbs and plants have immense significance in maintaining bone health. Hydrolysable tannins have been shown to possess a variety of medicinal properties including antiviral, anticancer, and anti-osteoclastogenic activities. As a part of a study on the discovery of alternative agent against skeletal diseases, we isolated a hydrolysable tannin, 2-O-digalloyl-1,3,4,6-tetra-O-galloyl- β-D-glucose (DTOGG), from Galla Rhois and examined the effect on osteoclast formation and function. We found that DTOGG significantly inhibited receptor activator of nuclear factor-κB ligand (RANKL)-induced osteoclast differentiation by downregulating the expression of the key regulator in osteoclastogenesis as well as osteoclast-related genes. Analysis of RANKL/RANK signaling revealed that DTOGG impaired activation of IκBα and p65 in the nuclear factor kappa-light-chain- enhancer of activated B cells (NF-κB) signaling pathway. Furthermore, DTOGG reduced bone resorbing activity of osteoclasts, compared to the vehicle-treated control. These results suggest that DTOGG could be a useful natural compound to manage osteoclast-mediated skeletal diseases.
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Affiliation(s)
- Hye Jung Ihn
- Institute for Hard Tissue and Bio-tooth Regeneration (IHBR), Kyungpook National University, Daegu 41940, Korea
| | - Tae Hoon Kim
- Department of Food Science and Biotechnology, Daegu University, Gyeongsan 38453, Korea
| | - Kiryeong Kim
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, IHBR, Kyungpook National University, Daegu 41940, Korea
| | - Gi-Young Kim
- Department of Marine Life Sciences, School of Marine Biomedical Sciences, Jeju National University, Jeju 63243, Korea
| | - You-Jin Jeon
- Department of Marine Life Sciences, School of Marine Biomedical Sciences, Jeju National University, Jeju 63243, Korea
| | - Yung Hyun Choi
- Department of Biochemistry, College of Korean Medicine, Dong-Eui University, Busan 47227, Korea
| | - Jong-Sup Bae
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Korea
| | - Jung-Eun Kim
- Department of Molecular Medicine, School of Medicine, Kyungpook National University, Daegu 41944, Korea
| | - Eui Kyun Park
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, IHBR, Kyungpook National University, Daegu 41940, Korea
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Hosoyama Y, Domae E, Goda S, Matsumoto N. Effects of gallotannin on osteoclastogenesis and the p38 MAP kinase pathway. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.odw.2016.10.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yukiko Hosoyama
- Graduate School of Dentistry, Department of Orthodontics, Osaka Dental University, 8-1 Kuzuhahanazonocho, Hirakata, Osaka, 573-1121, Japan
| | - Eisuke Domae
- Department of Biochemistry, Osaka Dental University, 8-1 Kuzuhahanazonocho, Hirakata, Osaka, 573-1121, Japan
| | - Seiji Goda
- Department of Oral Science, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka, Kanagawa, 238-8580, Japan
| | - Naoyuki Matsumoto
- Department of Orthodontics, Osaka Dental University, 8-1 Kuzuhahanazonocho, Hirakata, Osaka, 573-1121, Japan
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Hapidin H, Romli NAA, Abdullah H. Proliferation study and microscopy evaluation on the effects of tannic acid in human fetal osteoblast cell line (hFOB 1.19). Microsc Res Tech 2019; 82:1928-1940. [PMID: 31423711 DOI: 10.1002/jemt.23361] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 06/03/2019] [Accepted: 07/29/2019] [Indexed: 11/06/2022]
Abstract
Tannic acid (TA) is a phenolic compound that might act directly on osteoblast metabolism. The study was performed to investigate the effects of TA on the proliferation, mineralization, and morphology of human fetal osteoblast cells (hFOB 1.19). The cells were divided into TA-treated, untreated, and pamidronate-treated (control drug) groups. Half maximal effective concentration (EC50 ) values for TA and pamidronate were measured using MTT assay. The EC50 of hFOB 1.19 cells treated with TA was 2.94 M. This concentration was more effective compared to the pamidronate (15.27 M). Cell proliferation assay was performed to compare cell viability from Day 1 until Day 14. The morphology of hFOB 1.19 was observed via inverted microscope and scanning electron microscope. Calcium (Ca) and phosphate (P) were assessed using energy-dispersive X-ray (EDX) analysis. Furthermore, the mineralization of hFOB 1.19 was determined by von Kossa staining (P depositions) and Alizarin Red S staining (Ca depositions). The number of cells treated with TA was significantly higher than the two control groups at Day 10 and Day 14. The morphology of cells treated with TA was uniformly fusiform-shaped with filopodia extensions. Besides, globular-like structures of deposited minerals were observed in the TA-treated group. In line with other findings, EDX spectrum analysis confirmed the presence of Ca and P. The cells treated with TA had significantly higher percentage of both minerals at Day 3 and Day 10 compared to the two control groups. In conclusion, TA enhances cell proliferation and causes cell morphology changes, as well as improved mineralization.
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Affiliation(s)
- Hermizi Hapidin
- Biomedicine Programme, School of Health Sciences, Universiti Sains Malaysia, Health Campus, 16150, Kubang Kerian, Kelantan, Malaysia
| | - Nur Afiqah Amalina Romli
- Biomedicine Programme, School of Health Sciences, Universiti Sains Malaysia, Health Campus, 16150, Kubang Kerian, Kelantan, Malaysia
| | - Hasmah Abdullah
- Environmental and Occupational Health Program, School of Health Sciences, Universiti Sains Malaysia, Health Campus, 16150, Kubang Kerian, Kelantan, Malaysia
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Steffi C, Shi Z, Kong CH, Wang W. Bioinspired polydopamine and polyphenol tannic acid functionalized titanium suppress osteoclast differentiation: a facile and efficient strategy to regulate osteoclast activity at bone-implant interface. J R Soc Interface 2019; 16:20180799. [PMID: 30836894 PMCID: PMC6451398 DOI: 10.1098/rsif.2018.0799] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 02/12/2019] [Indexed: 12/21/2022] Open
Abstract
Osseointegration of metallic implants in porous osteoporotic bone remains a challenge. Surface modification of implants to reduce peri-implant osteoclastic bone resorption was explored in the study. Bioinspired polydopamine (pDOP) and polyphenol tannic acid (pTAN) are nature-derived universal coating systems that have emerged either as a sole coating or ad-layer for biomolecular conjugation on different biomaterials. The effects pDOP and pTAN on osteoclast development have not been reported before. In this study, osteoclast development was investigated on titanium (Ti) substrates coated with pDOP (Ti-pDOP) and pTAN (Ti-pTAN). The results showed that Ti-pDOP and Ti-pTAN coating reduced tartrate-resistant acid phosphatase activity and osteoclast cell number as compared with pristine Ti. Intriguingly, the reduction was higher on Ti-pTAN than on Ti-pDOP. Economical and biocompatible tannic acid serves as a superior coating in decreasing osteoclast activity when compared with that of pDOP coating and could be used to modulate osteoclast activity at bone-implant interfaces.
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Affiliation(s)
| | | | | | - Wilson Wang
- Department of Orthopaedic Surgery, National University of Singapore, NUHS Tower Block Level 11, 1E Kent Ridge Road, Singapore 119228, Republic of Singapore
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Georgess D, Spuul P, Le Clainche C, Le Nihouannen D, Fremaux I, Dakhli T, Delannoy López DM, Deffieux D, Jurdic P, Quideau S, Génot E. Anti-osteoclastic effects of C-glucosidic ellagitannins mediated by actin perturbation. Eur J Cell Biol 2018; 97:533-545. [PMID: 30287085 DOI: 10.1016/j.ejcb.2018.09.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 08/22/2018] [Accepted: 09/18/2018] [Indexed: 12/18/2022] Open
Abstract
Actin subunits assemble into actin filaments whose dynamics and three-dimensional architectures are further regulated by a variety of cellular factors to establish the functional actin cytoskeleton. The C-glucosidic ellagitannin vescalagin and its simpler analogue vescalin, affect both the dynamics and the ultrastructure of the actin cytoskeleton by directly binding to F-actin. Herein, we show that in vitro, the two compounds induce the formation of distinct F-actin networks characterized by different superstructures and dynamics. In living mature osteoclasts, highly specialized bone-degrading cells that constantly remodel their cytoskeleton, vescalagin and vescalin alter actin dynamics at podosomes and compromise the integrity of the podosome belt that forms the bone-degrading apparatus. Both compounds target the bone-resorbing activity at concentrations that preserve osteoclastic maturation and survival and with no detectable impact on the behaviour of bone-forming osteoblastic cells. This anti-osteoclastic activity of vescalagin and vescalin reveals the potential of targeting actin dynamics as a new therapeutic opportunity and, in this case, as a plausible approach for the local treatment of osteoporosis.
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Affiliation(s)
- Dan Georgess
- Institut de Génomique Fonctionnelle de Lyon, (ENS-UMR 5242), Université de Lyon, F-69007, Lyon Cedex, France
| | - Pirjo Spuul
- Centre de Recherche Cardio-Thoracique de Bordeaux (INSERM U1045), Université de Bordeaux, F-33076, Bordeaux Cedex, France; Department of Chemistry and Biotechnology, Division of Gene Technology, Tallinn University of Technology, 12618, Tallinn, Estonia
| | - Christophe Le Clainche
- Institute for Integrative Biology of the Cell, CEA, CNRS, Université Paris-Sud, Université Paris-Saclay, F-91198, Gif-sur-Yvette Cedex, France
| | - Damien Le Nihouannen
- Inserm U1026, University of Bordeaux, Tissue Bioengineering, U1026, F-33076 Bordeaux, France
| | - Isabelle Fremaux
- Centre de Recherche Cardio-Thoracique de Bordeaux (INSERM U1045), Université de Bordeaux, F-33076, Bordeaux Cedex, France
| | - Thierry Dakhli
- European Institute of Chemistry and Biology, (UMS 3033/US 001), Université de Bordeaux, 33607 Pessac Cedex, F-33607, France
| | | | - Denis Deffieux
- Institut des Sciences Moléculaires (CNRS-UMR 5255), Université de Bordeaux, Talence Cedex, F-33405, France
| | - Pierre Jurdic
- Institut de Génomique Fonctionnelle de Lyon, (ENS-UMR 5242), Université de Lyon, F-69007, Lyon Cedex, France
| | - Stéphane Quideau
- Institut des Sciences Moléculaires (CNRS-UMR 5255), Université de Bordeaux, Talence Cedex, F-33405, France.
| | - Elisabeth Génot
- Centre de Recherche Cardio-Thoracique de Bordeaux (INSERM U1045), Université de Bordeaux, F-33076, Bordeaux Cedex, France.
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Preethi Soundarya S, Sanjay V, Haritha Menon A, Dhivya S, Selvamurugan N. Effects of flavonoids incorporated biological macromolecules based scaffolds in bone tissue engineering. Int J Biol Macromol 2018; 110:74-87. [DOI: 10.1016/j.ijbiomac.2017.09.014] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 08/16/2017] [Accepted: 09/05/2017] [Indexed: 02/07/2023]
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9
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Torre E. Molecular signaling mechanisms behind polyphenol-induced bone anabolism. PHYTOCHEMISTRY REVIEWS : PROCEEDINGS OF THE PHYTOCHEMICAL SOCIETY OF EUROPE 2017; 16:1183-1226. [PMID: 29200988 PMCID: PMC5696504 DOI: 10.1007/s11101-017-9529-x] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 08/20/2017] [Indexed: 05/08/2023]
Abstract
For millennia, in the different cultures all over the world, plants have been extensively used as a source of therapeutic agents with wide-ranging medicinal applications, thus becoming part of a rational clinical and pharmacological investigation over the years. As bioactive molecules, plant-derived polyphenols have been demonstrated to exert many effects on human health by acting on different biological systems, thus their therapeutic potential would represent a novel approach on which natural product-based drug discovery and development could be based in the future. Many reports have provided evidence for the benefits derived from the dietary supplementation of polyphenols in the prevention and treatment of osteoporosis. Polyphenols are able to protect the bone, thanks to their antioxidant properties, as well as their anti-inflammatory actions by involving diverse signaling pathways, thus leading to bone anabolic effects and decreased bone resorption. This review is meant to summarize the research works performed so far, by elucidating the molecular mechanisms of action of polyphenols in a bone regeneration context, aiming at a better understanding of a possible application in the development of medical devices for bone tissue regeneration.
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Affiliation(s)
- Elisa Torre
- Nobil Bio Ricerche srl, Via Valcastellana, 26, 14037 Portacomaro, AT Italy
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Kim JW, Ko SK, Kim HM, Kim GH, Son S, Kim GS, Hwang GJ, Jeon ES, Shin KS, Ryoo IJ, Hong YS, Oh H, Lee KH, Soung NK, Hashizume D, Nogawa T, Takahashi S, Kim BY, Osada H, Jang JH, Ahn JS. Stachybotrysin, an Osteoclast Differentiation Inhibitor from the Marine-Derived Fungus Stachybotrys sp. KCB13F013. JOURNAL OF NATURAL PRODUCTS 2016; 79:2703-2708. [PMID: 27726391 DOI: 10.1021/acs.jnatprod.6b00641] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Two new phenylspirodrimane derivatives, stachybotrysin (1) and stachybotrylactone B (2), were isolated from the cultures of the marine-derived fungus Stachybotrys sp. KCB13F013. The structures were determined by analyzing the spectroscopic data (1D and 2D NMR and MS) and chemical transformation, including the modified Mosher's method and single-crystal X-ray structure analysis. Compound 1 exhibited an inhibitory effect on osteoclast differentiation in bone marrow macrophage cells via suppressing the RANKL-induced activation of p-ERK, p-JNK, p-p38, c-Fos, and NFATc1.
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Affiliation(s)
- Jong Won Kim
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology , Cheongju, 28116, South Korea
| | - Sung-Kyun Ko
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology , Cheongju, 28116, South Korea
- Department of Biomolecular Science, University of Science and Technology , Daejeon 34113, South Korea
| | - Hye-Min Kim
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology , Cheongju, 28116, South Korea
- Department of Biomolecular Science, University of Science and Technology , Daejeon 34113, South Korea
| | - Gun-Hee Kim
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology , Cheongju, 28116, South Korea
| | - Sangkeun Son
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology , Cheongju, 28116, South Korea
- Department of Biomolecular Science, University of Science and Technology , Daejeon 34113, South Korea
| | - Gil Soo Kim
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology , Cheongju, 28116, South Korea
- Department of Biomolecular Science, University of Science and Technology , Daejeon 34113, South Korea
| | - Gwi Ja Hwang
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology , Cheongju, 28116, South Korea
- Department of Biomolecular Science, University of Science and Technology , Daejeon 34113, South Korea
| | - Eun Soo Jeon
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology , Cheongju, 28116, South Korea
| | - Kee-Sun Shin
- Industrial Bio-materials Research Center , Daejeon 34141, South Korea
| | - In-Ja Ryoo
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology , Cheongju, 28116, South Korea
| | - Young-Soo Hong
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology , Cheongju, 28116, South Korea
- Department of Biomolecular Science, University of Science and Technology , Daejeon 34113, South Korea
| | - Hyuncheol Oh
- College of Pharmacy, Wonkwang University , Iksan 54538, South Korea
| | - Kyung Ho Lee
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology , Cheongju, 28116, South Korea
| | - Nak-Kyun Soung
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology , Cheongju, 28116, South Korea
- Department of Biomolecular Science, University of Science and Technology , Daejeon 34113, South Korea
| | - Daisuke Hashizume
- Materials Characterization Support Unit, RIKEN Center for Emergent Matter Science (CEMS) , Wako, Saitama 351-0198, Japan
| | - Toshihiko Nogawa
- Chemical Biology Research Group, RIKEN CSRS , Wako, Saitama 351-0198, Japan
| | - Shunji Takahashi
- Chemical Biology Research Group, RIKEN CSRS , Wako, Saitama 351-0198, Japan
- RIKEN-KRIBB Joint Research Unit, RIKEN Global Research Cluster , Wako, Saitama 351-0198, Japan
| | - Bo Yeon Kim
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology , Cheongju, 28116, South Korea
- Department of Biomolecular Science, University of Science and Technology , Daejeon 34113, South Korea
| | - Hiroyuki Osada
- Chemical Biology Research Group, RIKEN CSRS , Wako, Saitama 351-0198, Japan
| | - Jae-Hyuk Jang
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology , Cheongju, 28116, South Korea
- Department of Biomolecular Science, University of Science and Technology , Daejeon 34113, South Korea
| | - Jong Seog Ahn
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology , Cheongju, 28116, South Korea
- Department of Biomolecular Science, University of Science and Technology , Daejeon 34113, South Korea
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Wedelolactone enhances osteoblastogenesis by regulating Wnt/β-catenin signaling pathway but suppresses osteoclastogenesis by NF-κB/c-fos/NFATc1 pathway. Sci Rep 2016; 6:32260. [PMID: 27558652 PMCID: PMC4997609 DOI: 10.1038/srep32260] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 08/04/2016] [Indexed: 11/08/2022] Open
Abstract
Bone homeostasis is maintained by formation and destruction of bone, which are two processes tightly coupled and controlled. Targeting both stimulation on bone formation and suppression on bone resorption becomes a promising strategy for treating osteoporosis. In this study, we examined the effect of wedelolactone, a natural product from Ecliptae herba, on osteoblastogenesis as well as osteoclastogenesis. In mouse bone marrow mesenchymal stem cells (BMSC), wedelolactone stimulated osteoblast differentiation and bone mineralization. At the molecular level, wedelolactone directly inhibited GSK3β activity and enhanced the phosphorylation of GSK3β, thereafter stimulated the nuclear translocation of β-catenin and runx2. The expression of osteoblastogenesis-related marker gene including osteorix, osteocalcin and runx2 increased. At the same concentration range, wedelolactone inhibited RANKL-induced preosteoclastic RAW264.7 actin-ring formation and bone resorption pits. Further, wedelolactone blocked NF-kB/p65 phosphorylation and abrogated the NFATc1 nuclear translocation. As a result, osteoclastogenesis-related marker gene expression decreased, including c-src, c-fos, and cathepsin K. In ovariectomized mice, administration of wedelolactone prevented ovariectomy-induced bone loss by enhancing osteoblast activity and inhibiting osteoclast activity. Together, these data demonstrated that wedelolactone facilitated osteoblastogenesis through Wnt/GSK3β/β-catenin signaling pathway and suppressed RANKL-induced osteoclastogenesis through NF-κB/c-fos/NFATc1 pathway. These results suggested that wedelolacone could be a novel dual functional therapeutic agent for osteoporosis.
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Wu WJ, Kim MS, Ahn BY. The inhibitory effect of vitamin K on RANKL-induced osteoclast differentiation and bone resorption. Food Funct 2016; 6:3351-8. [PMID: 26267519 DOI: 10.1039/c5fo00544b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To further understand the correlation between vitamin K and bone metabolism, the effects of vitamins K1, menaquinone-4 (MK-4), and menaquinone-7 (MK-7) on RANKL-induced osteoclast differentiation and bone resorption were comparatively investigated. Vitamin K2 groups (MK-4 and MK-7) were found to significantly inhibit RANKL-medicated osteoclast cell formation of bone marrow macrophages (BMMs) in a dose-dependent manner, without any evidence of cytotoxicity. The mRNA expression of specific osteoclast differentiation markers, such as c-Fos, NFATc1, OSCAR, and TRAP, as well as NFATc1 protein expression and TRAP activity in RANKL-treated BMMs were inhibited by vitamin K2, although MK-4 exhibited a significantly greater efficiency compared to MK-7. In contrast, the same dose of vitamin K1 had no inhibitory effect on RANKL-induced osteoclast cell formation, but increased the expression of major osteoclastogenic genes. Interestingly, vitamins K1, MK-4 and MK-7 all strongly inhibited osteoclastic bone resorption (p < 0.01) in a dose dependent manner. These results suggest that vitamins K1, MK-4 and MK-7 have anti-osteoporotic properties, while their regulation effects on osteoclastogenesis are somewhat different.
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Affiliation(s)
- Wei-Jie Wu
- Institute of food science, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang 310021, PR China
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An J, Hao D, Zhang Q, Chen B, Zhang R, Wang Y, Yang H. Natural products for treatment of bone erosive diseases: The effects and mechanisms on inhibiting osteoclastogenesis and bone resorption. Int Immunopharmacol 2016; 36:118-131. [PMID: 27131574 DOI: 10.1016/j.intimp.2016.04.024] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 03/28/2016] [Accepted: 04/18/2016] [Indexed: 01/13/2023]
Abstract
Excessive bone resorption plays a central role on the development of bone erosive diseases, including osteoporosis, rheumatoid arthritis, and periodontitis. Osteoclasts, bone-resorbing multinucleated cells, are differentiated from hemopoietic progenitors of the monocyte/macrophage lineage. Regulation of osteoclast differentiation is considered an effective therapeutic target to the treatment of pathological bone loss. Natural plant-derived products, with potential therapeutic and preventive activities against bone-lytic diseases, have received increasing attention in recent years because of their whole regulative effects and specific pharmacological activities, which are more suitable for long-term use than chemically synthesized medicines. In this review, we summarized the detailed research progress on the active compounds derived from medical plants with potential anti-resorptive effects and their molecular mechanisms on inhibiting osteoclast formation and function. The active ingredients derived from natural plants that are efficacious in suppressing osteoclastogenesis and bone resorption include flavonoids, terpenoids (sesquiterpenoids, diterpenoids, triterpenoids), glycosides, lignans, coumarins, alkaloids, polyphenols, limonoids, quinones and others (steroid, oxoxishhone, fatty acid). Studies have shown that above natural products exert the inhibitory effects via regulating many factors involved in the process of osteoclast differentiation and bone resorption, including the essential cytokines (RANKL, M-CSF), transcription factors (NFATc1, c-Fos), signaling pathways (NF-κB, MAPKs, Src/PI3K/Akt, the calcium ion signaling), osteoclast-specific genes (TRAP, CTSK, MMP-9, integrin β3, OSCAR, DC-STAMP, Atp6v0d2) and local factors (ROS, LPS, NO). The development of osteoclast-targeting natural products is of great value for the prevention or treatment of bone diseases and for bone regenerative medicine.
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Affiliation(s)
- Jing An
- Translational Medicine Centre, Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an 710054, China
| | - Dingjun Hao
- Translational Medicine Centre, Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an 710054, China
| | - Qian Zhang
- Translational Medicine Centre, Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an 710054, China
| | - Bo Chen
- Translational Medicine Centre, Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an 710054, China
| | - Rui Zhang
- Translational Medicine Centre, Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an 710054, China
| | - Yi Wang
- Translational Medicine Centre, Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an 710054, China
| | - Hao Yang
- Translational Medicine Centre, Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an 710054, China.
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Spilmont M, Léotoing L, Davicco MJ, Lebecque P, Miot-Noirault E, Pilet P, Rios L, Wittrant Y, Coxam V. Pomegranate Peel Extract Prevents Bone Loss in a Preclinical Model of Osteoporosis and Stimulates Osteoblastic Differentiation in Vitro. Nutrients 2015; 7:9265-84. [PMID: 26569295 PMCID: PMC4663593 DOI: 10.3390/nu7115465] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 10/12/2015] [Accepted: 10/14/2015] [Indexed: 12/23/2022] Open
Abstract
The nutritional benefits of pomegranate have attracted great scientific interest. The pomegranate, including the pomegranate peel, has been used worldwide for many years as a fruit with medicinal activity, mostly antioxidant properties. Among chronic diseases, osteoporosis, which is associated with bone remodelling impairment leading to progressive bone loss, could eventually benefit from antioxidant compounds because of the involvement of oxidative stress in the pathogenesis of osteopenia. In this study, with in vivo and ex vivo experiments, we investigated whether the consumption of pomegranate peel extract (PGPE) could limit the process of osteopenia. We demonstrated that in ovariectomized (OVX) C57BL/6J mice, PGPE consumption was able to significantly prevent the decrease in bone mineral density (-31.9%; p < 0.001 vs. OVX mice) and bone microarchitecture impairment. Moreover, the exposure of RAW264.7 cells to serum harvested from mice that had been given a PGPE-enriched diet elicited reduced osteoclast differentiation and bone resorption, as shown by the inhibition of the major osteoclast markers. In addition, PGPE appeared to substantially stimulate osteoblastic MC3T3-E1 alkaline phosphatase (ALP) activity at day 7, mineralization at day 21 and the transcription level of osteogenic markers. PGPE may be effective in preventing the bone loss associated with ovariectomy in mice, and offers a promising alternative for the nutritional management of this disease.
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Affiliation(s)
- Mélanie Spilmont
- Unité de Nutrition Humaine, CRNH Auvergne, UMR 1019, INRA, F-63000 Clermont-Ferrand, France.
- Unité de Nutrition Humaine, Université d'Auvergne, Clermont Université, BP 10448, F-63000 Clermont-Ferrand, France.
- GREENTECH SA Biopôle Clermont-Limagne, F-63360 Saint-Beauzire, France.
| | - Laurent Léotoing
- Unité de Nutrition Humaine, CRNH Auvergne, UMR 1019, INRA, F-63000 Clermont-Ferrand, France.
- Unité de Nutrition Humaine, Université d'Auvergne, Clermont Université, BP 10448, F-63000 Clermont-Ferrand, France.
| | - Marie-Jeanne Davicco
- Unité de Nutrition Humaine, CRNH Auvergne, UMR 1019, INRA, F-63000 Clermont-Ferrand, France.
- Unité de Nutrition Humaine, Université d'Auvergne, Clermont Université, BP 10448, F-63000 Clermont-Ferrand, France.
| | - Patrice Lebecque
- Unité de Nutrition Humaine, CRNH Auvergne, UMR 1019, INRA, F-63000 Clermont-Ferrand, France.
- Unité de Nutrition Humaine, Université d'Auvergne, Clermont Université, BP 10448, F-63000 Clermont-Ferrand, France.
| | - Elisabeth Miot-Noirault
- Imagerie Moléculaire et Thérapie Vectorisée, Université d'Auvergne, Clermont Université, UMR 990, INSERM, BP 10448, F-63000 Clermont-Ferrand, France.
| | - Paul Pilet
- Laboratoire d'Ingénierie Ostéo-Articulaire et Dentaire-LIOAD, Université de Nantes, UMR 791, INSERM, F-44042 Nantes, France.
| | - Laurent Rios
- GREENTECH SA Biopôle Clermont-Limagne, F-63360 Saint-Beauzire, France.
| | - Yohann Wittrant
- Unité de Nutrition Humaine, CRNH Auvergne, UMR 1019, INRA, F-63000 Clermont-Ferrand, France.
- Unité de Nutrition Humaine, Université d'Auvergne, Clermont Université, BP 10448, F-63000 Clermont-Ferrand, France.
| | - Véronique Coxam
- Unité de Nutrition Humaine, CRNH Auvergne, UMR 1019, INRA, F-63000 Clermont-Ferrand, France.
- Unité de Nutrition Humaine, Université d'Auvergne, Clermont Université, BP 10448, F-63000 Clermont-Ferrand, France.
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15
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Pomegranate and its derivatives can improve bone health through decreased inflammation and oxidative stress in an animal model of postmenopausal osteoporosis. Eur J Nutr 2015; 53:1155-64. [PMID: 24232379 DOI: 10.1007/s00394-013-0615-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2013] [Accepted: 10/24/2013] [Indexed: 01/16/2023]
Abstract
PURPOSE Recently, nutritional and pharmaceutical benefits of pomegranate (PG) have raised a growing scientific interest. Since PG is endowed with anti-inflammatory and antioxidant activities, we hypothesized that it may have beneficial effects on osteoporosis. METHODS We used ovariectomized (OVX) mice as a well-described model of postmenopausal osteoporosis to study the influence of PG consumption on bone health. Mice were divided into five groups as following: two control groups sham-operated and ovariectomized (OVX CT) mice fed a standard diet, versus three treated groups OVX mice given a modified diet from the AIN-93G diet, containing 5.7% of PG lyophilized mashed totum (OVX PGt), or 9.6% of PG fresh juice (OVX PGj) or 2.9% of PG lyophilized mashed peel (OVX PGp). RESULTS As expected, ovariectomy was associated with a decreased femoral bone mineral density (BMD) and impaired bone micro-architecture parameters. Consumption of PGj, PGp, or PGt induced bone-sparing effects in those OVX mice, both on femoral BMD and bone micro-architecture parameters. In addition, PG (whatever the part) up-regulated osteoblast activity and decreased the expression of osteoclast markers, when compared to what was observed in OVX CT animals. Consistent with the data related to bone parameters, PG consumption elicited a lower expression of pro-inflammatory makers and of enzymes involved in ROS generation, whereas the expression of anti-inflammatory markers and anti-oxidant actors was enhanced. CONCLUSION These results indicate that all PG parts are effective in preventing the development of bone loss induced by ovariectomy in mice. Such an effect could be partially explained by an improved inflammatory and oxidative status.
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16
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Iwatake M, Okamoto K, Tanaka T, Tsukuba T. Castalagin Exerts Inhibitory Effects on Osteoclastogenesis Through Blocking a Broad Range of Signaling Pathways with Low Cytotoxicity. Phytother Res 2015; 29:917-24. [DOI: 10.1002/ptr.5333] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 02/21/2015] [Accepted: 02/27/2015] [Indexed: 01/16/2023]
Affiliation(s)
- Mayumi Iwatake
- Division of Dental Pharmacology; Nagasaki University Graduate School of Biomedical Sciences; 1-7-1 Sakamoto Nagasaki 852-8588 Japan
| | - Kuniaki Okamoto
- Division of Dental Pharmacology; Nagasaki University Graduate School of Biomedical Sciences; 1-7-1 Sakamoto Nagasaki 852-8588 Japan
| | - Takashi Tanaka
- Division of Natural Product Chemistry; Nagasaki University Graduate School of Biomedical Sciences; 1-14 Bunkyo Nagasaki 852-8521 Japan
| | - Takayuki Tsukuba
- Division of Dental Pharmacology; Nagasaki University Graduate School of Biomedical Sciences; 1-7-1 Sakamoto Nagasaki 852-8588 Japan
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17
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A cell-based model of bone remodeling for identifying activity of icarrin in the treatment of osteoporosis. Biotechnol Lett 2014; 37:219-26. [DOI: 10.1007/s10529-014-1661-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Accepted: 08/30/2014] [Indexed: 10/24/2022]
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18
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Itou T, Maldonado N, Yamada I, Goettsch C, Matsumoto J, Aikawa M, Singh S, Aikawa E. Cystathionine γ-lyase accelerates osteoclast differentiation: identification of a novel regulator of osteoclastogenesis by proteomic analysis. Arterioscler Thromb Vasc Biol 2013; 34:626-34. [PMID: 24357058 DOI: 10.1161/atvbaha.113.302576] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Clinical evidence has linked vascular calcification in advanced atherosclerotic plaques with overt cardiovascular disease and mortality. Bone resorbing monocyte-derived osteoclast-like cells are sparse in these plaques, indicating that their differentiation capability could be suppressed. Here, we seek to characterize the process of osteoclastogenesis by identifying novel regulators and pathways, with the aim of exploring possible strategies to reduce calcification. APPROACH AND RESULTS We used a quantitative mass spectrometry strategy, tandem mass tagging, to quantify changes in the proteome of osteoclast-like cells differentiated from RAW264.7 cells in response to, receptor activator of nuclear factor κ-B ligand induction, a common in vitro model for osteogenesis. More than 4000 proteins were quantified, of which 138 were identified as novel osteoclast-related proteins. We selected 5 proteins for subsequent analysis (cystathionine γ-lyase [Cth/CSE], EGF-like repeat and discoidin I-like domain-containing protein 3, integrin α FG-GAP repeat containing 3, adseverin, and serpinb6b) and show that gene expression levels are also increased. Further analysis of the CSE transcript profile reveals an early onset of an mRNA increase. Silencing of CSE by siRNA and dl-propargylglycine, a CSE inhibitor, attenuated receptor activator of nuclear factor κ-B ligand-induced tartrate-resistant acid phosphatase type 5 activity and pit formation, suggesting that CSE is a potent inducer of calcium resorption. Moreover, knockdown of CSE suppressed expression of osteoclast differentiation markers. CONCLUSIONS Our large-scale proteomics study identified novel candidate regulators or markers for osteoclastogenesis and demonstrated that CSE may act in early stages of osteoclastogenesis.
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Affiliation(s)
- Takahiro Itou
- From the Division of Cardiovascular Medicine, Center for Interdisciplinary Cardiovascular Sciences (T.I., N.M., I.Y., C.G., J.M., M.A., S.S., E.A.), Channing Division of Network Medicine (M.A.), and Division of Cardiovascular Medicine, Center for Excellence in Vascular Biology (M.A., E.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA; and Kowa Company, Ltd, Tokyo, Japan (T.I., I.Y., J.M.)
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19
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Nakashima Y, Haneji T. Stimulation of osteoclast formation by RANKL requires interferon regulatory factor-4 and is inhibited by simvastatin in a mouse model of bone loss. PLoS One 2013; 8:e72033. [PMID: 24039733 PMCID: PMC3770656 DOI: 10.1371/journal.pone.0072033] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2013] [Accepted: 07/04/2013] [Indexed: 11/19/2022] Open
Abstract
Diseases of bone loss are a major public health problem. Here, we report the novel therapeutic action of simvastatin in osteoclastogenesis and osteoprotection, demonstrated by the ability of simvastatin to suppress osteoclast formation in vitro and in vivo. We found that in vitro, IRF4 expression is upregulated during osteoclast differentiation induced by RANKL (receptor activator of nuclear factor-κB ligand), while simvastatin blocks RANKL-induced osteoclastogenesis and decreases expression of NFATc1 (nuclear factor of activated T-cells, cytoplasmic, calcineurin-dependent 1), IRF4 and osteoclast markers. We also show that IRF4 acts in cooperation with NFATc2 and NF-κB on the promoter region of NFATc1 to accelerate its initial transcription during the early stage of osteoclastogenesis. Moreover, our study using IRF4 siRNA knockdown directly demonstrates the requirement for IRF4 in NFATc1 mRNA transcription and its necessity in RANKL-induced osteoclast differentiation. Our results suggest that the reduction in osteoclastogenesis is partly due to the inhibition of IRF4 production in RANKL-induced osteoclast differentiation. To investigate the in vivo effects of simvastatin in RANKL-treated mice, we examined the bone mineral density (BMD) of a mouse model of bone loss, and found that simvastatin significantly reduced bone loss by suppressing osteoclast numbers in vivo, even in the presence of high concentrations of RANKL. These results suggest that the depletion of osteoclasts is not due to the reduction in RANKL produced by osteoblasts in vivo. The results are consistent with the hypothesis that simvastatin blocks RANKL-induced IRF4 expression in osteoclastogenesis. We propose that the expression of IRF4 by osteoclasts could be a promising new therapeutic target in bone-loss diseases.
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Affiliation(s)
- Yoshiki Nakashima
- Department of Histology and Oral Histology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
- * E-mail:
| | - Tatsuji Haneji
- Department of Histology and Oral Histology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
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20
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Costa-Rodrigues J, Carmo SC, Silva JC, Fernandes MHR. Inhibition of human in vitro osteoclastogenesis by Equisetum arvense. Cell Prolif 2013; 45:566-76. [PMID: 23106302 DOI: 10.1111/j.1365-2184.2012.00848.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVES Equisetum arvense has long been used in traditional medicines to treat different disorders, including bone pathologies. In this study a hydromethanolic extract of E. arvense was assessed for its effects on human osteoclastogenesis. MATERIALS AND METHODS Osteoclast precursors were maintained in non-stimulated and stimulated (presence of M-CSF and RANKL) conditions, or in co-cultures with osteoblasts. Cell cultures were treated with 0.00016-0.5 mg/ml of a hydromethanolic E. arvense extract. RESULTS The extract did not affect spontaneous osteoclastogenesis. In osteoclast precursors committed to osteoclastogenesis (stimulated or co-cultured with osteoblasts), E. arvense caused dose-dependent inhibitory effect that became statistically significant at concentrations ≥0.004 mg/ml. This was observed using different osteoclast differentiation and activation markers. Cell response was associated with changes in relative contribution of MEK and NFkB signalling pathways, as well as PGE2 production. As there were differences in the response of osteoclast precursors maintained in the presence of inductive factors, or co-cultured with osteoblastic cells, it seems that E. arvense extract had the ability to modulate osteoclastogenesis, either by acting directly on osteoclast precursor cells, and/or via osteoblasts. CONCLUSIONS Equisetum appeared to have a negative effect on human osteoclastogenesis, which is in line with its putative beneficial role in pathophysiological conditions associated with increased osteoclastic activity, and might suggest potential utility for treatment with bone regeneration strategies.
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Affiliation(s)
- J Costa-Rodrigues
- Laboratory of Pharmacology and Cellular Biocompatibility, University of Porto, Porto, Portugal
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21
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Jin S, Park JY, Hong JM, Kim TH, Shin HI, Park EK, Kim SY. Inhibitory effect of (-)-epigallocatechin gallate on titanium particle-induced TNF-α release and in vivo osteolysis. Exp Mol Med 2011; 43:411-8. [PMID: 21633184 DOI: 10.3858/emm.2011.43.7.045] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Tumor necrosis factor-α (TNF-α) and inflammatory cytokines released from activated macrophages in response to particulate debris greatly impact periprosthetic bone loss and consequent implant failure. In the present study, we found that a major polyphenolic component of green tea, (-)-epigallocatechin gallate (EGCG), inhibited Ti particle-induced TNF-α release in macrophages in vitro and calvarial osteolysis in vivo. The Ti stimulation of macrophages released TNF-α in a dose- and time-dependent manner, and EGCG substantially suppressed Ti particle-induced TNF-α release. Analysis of signaling pathway showed that EGCG inhibited the Ti-induced c-Jun N-terminus kinase (JNK) activation and inhibitory κB (IκB) degradation, and consequently the Ti-induced transcriptional activation of AP-1 and NF-κB. In a mouse calvarial osteolysis model, EGCG inhibited Ti particle-induced osteolysis in vivo by suppressing TNF-a expression and osteoclast formation. Therefore, EGCG may be a potential candidate compound for osteolysis prevention and treatment as well as aseptic loosening after total replacement arthroplasty.
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Affiliation(s)
- Shan Jin
- Skeletal Diseases Genome Research Center Kyungpook National University Hospital
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22
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Quideau S, Douat-Casassus C, Delannoy López DM, Di Primo C, Chassaing S, Jacquet R, Saltel F, Genot E. Binding of Filamentous Actin and Winding into Fibrillar Aggregates by the Polyphenolic C-Glucosidic Ellagitannin Vescalagin. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201006712] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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23
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Quideau S, Douat-Casassus C, Delannoy López DM, Di Primo C, Chassaing S, Jacquet R, Saltel F, Genot E. Binding of Filamentous Actin and Winding into Fibrillar Aggregates by the Polyphenolic C-Glucosidic Ellagitannin Vescalagin. Angew Chem Int Ed Engl 2011; 50:5099-104. [DOI: 10.1002/anie.201006712] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2010] [Revised: 12/23/2010] [Indexed: 01/18/2023]
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24
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Agis H, Magdalenko M, Stögerer K, Watzek G, Gruber R. Collagen barrier membranes decrease osteoclastogenesis in murine bone marrow cultures. Clin Oral Implants Res 2010; 21:656-61. [PMID: 20337667 DOI: 10.1111/j.1600-0501.2009.01888.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Collagen barrier membranes (CBM) are used for guided bone regeneration to support the process of graft consolidation. It remains, unknown however, whether CBM can affect the consolidation of bone grafts by controlling the differentiation of progenitor cells into bone-resorbing osteoclasts and bone-forming osteoblasts. MATERIAL AND METHODS To gain an insight into the underlying mechanisms, we performed in vitro bone marrow cultures on CBM (Bio-Gide under conditions that favor osteoclastogenesis and osteoblastogenesis, respectively. Measures of osteoclastogenesis were based on the number of tartrate-resistant acid-phosphatase-positive (TRAP+) multinucleated cells. Resorption assays revealed the activity of mature osteoclasts. Osteoblastogenesis was determined by alkaline-phosphatase activity. Viability was investigated utilizing the MTT assay. RESULTS Cultivation of murine bone marrow on CBM reduced the number of TRAP+ multinucleated cells compared with cultures on tissue culture plates. Inhibition of osteoclastogenesis was observed on the porous and the dense CBM surfaces. The majority of TRAP+ cells were mononucleated and the decreased osteoclastogenesis was not due to changes in cell viability. Furthermore, CBM are inert regarding the resorptive activity of mature osteoclasts. Moreover, osteoblastogenesis was not reduced when bone marrow cells were grown on the surface of CBM. CONCLUSIONS These in vitro findings demonstrate that CBM can reduce the formation but not the activity of multinucleated osteoclasts. Our data further reveal that the formation of osteogenic cells from their progenitors is not reduced by the CBM. Overall, our results suggest that the beneficial effects of CBM during graft consolidation may involve their direct impact on osteoclastogenesis.
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Affiliation(s)
- Hermann Agis
- Department of Oral Surgery, Medical University of Vienna, Vienna, Austria
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25
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Abstract
Aged rats show decrements in performance on motor and cognitive tasks that require the use of spatial learning and memory. Previously we have shown that these deficits can be reversed by the polyphenolics in fruits and vegetables. Walnuts, which contain the n-3 fatty acids a-linolenic acid and linoleic acid, are a dietary source of polyphenols, antioxidants and lipids. Thus, the present study examined the effects of walnut supplementation on motor and cognitive ability in aged rats. Fischer 344 rats, aged 19 months, were fed a control, or a 2, 6 or 9% walnut diet for 8 weeks before motor and cognitive testing. Results for the motor testing showed that the 2% walnut diet improved performance on rod walking, while the 6% walnut diet improved performance on the medium plank walk; the higher dose of the 9% walnut diet did not improve psychomotor performance and on the large plank actually impaired performance. All of the walnut diets improved working memory in the Morris water maze, although the 9% diet showed impaired reference memory. These findings show for the first time that moderate dietary walnut supplementation can improve cognitive and motor performance in aged rats.
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A novel PPARγ agonist, KR62776, suppresses RANKL-induced osteoclast differentiation and activity by inhibiting MAP kinase pathways. Biochem Biophys Res Commun 2009; 378:645-9. [DOI: 10.1016/j.bbrc.2008.11.115] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2008] [Accepted: 11/20/2008] [Indexed: 12/12/2022]
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27
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Bu SY, Lerner M, Stoecker BJ, Boldrin E, Brackett DJ, Lucas EA, Smith BJ. Dried plum polyphenols inhibit osteoclastogenesis by downregulating NFATc1 and inflammatory mediators. Calcif Tissue Int 2008; 82:475-88. [PMID: 18509698 DOI: 10.1007/s00223-008-9139-0] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2007] [Accepted: 04/22/2008] [Indexed: 12/13/2022]
Abstract
Dried plums and their polyphenols have been shown to suppress bone resorption by downregulating receptor activator NF-kappaB ligand (RANKL). Due to the anti-inflammatory and antioxidant properties of these compounds, this study was designed to investigate whether dried plum polyphenols exert additional, more direct effects on osteoclasts and their precursors. RAW 264.7 macrophages were used as a model to study osteoclast precursors and osteoclast differentiation and activity. Under inflammatory conditions induced by lipopolysaccharide (LPS), polyphenols extracted from dried plum (10, 20, and 30 microg/mL) downregulated osteoclast precursor cyclooxygenase expression and nitric oxide (NO) by inhibiting inducible NO synthase. NO and tumor necrosis factor (TNF)-alpha were also suppressed in the presence of RANKL during osteoclastogenesis by the polyphenols. Increased TNF-alpha production in response to oxidative stress, but not LPS, was decreased over time. As expected, LPS and H2O2 significantly increased the number of tartrate-resistant acid phosphatase-positive cells by 127% and 30%, respectively. Dried plum polyphenols decreased osteoclast differentiation under normal as well as inflammatory and oxidative stress conditions, coincident with the suppression of the transcription factor, nuclear factor for activated T cells (NFATcl). These inhibitory effects on osteoclastogenesis were confirmed in primary bone marrow cultures. Resorption pit formation was decreased to a similar extent as osteoclast differentiation, suggesting that dried plum polyphenols primarily affect osteoclast differentiation as opposed to activity. Our data demonstrate that dried plum polyphenols directly inhibit osteoclastogenesis, leading to a decrease in osteoclast activity, by downregulating NFATc1 and inflammatory mediators.
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Affiliation(s)
- So Young Bu
- Department of Nutritional Sciences, College of Human Environmental Sciences, Oklahoma State University, Stillwater, OK 74078, USA
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Dembitsky VM. Astonishing diversity of natural surfactants: 2. Polyether glycosidic ionophores and macrocyclic glycosides. Lipids 2005; 40:219-48. [PMID: 15957249 DOI: 10.1007/s11745-005-1378-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Polyether glycosidic ionophores and macrocyclic glycosides are of great interest, especially for the medicinal and pharmaceutical industries. These biologically active natural surfactants are good prospects for the future chemical preparation of compounds useful as antibiotics, anticancer agents, or in industry. More than 300 interesting and unusual natural surfactants are described in this review article, including their chemical structures and biological activities.
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Affiliation(s)
- Valery M Dembitsky
- Department of Organic Chemistry and School of Pharmacy, Hebrew University, Jerusalem, Israel.
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