201
|
Chiu YH, Schwarz E, Li D, Xu Y, Sheu TR, Li J, de Mesy Bentley KL, Feng C, Wang B, Wang JC, Albertorio-Saez L, Wood R, Kim M, Wang W, Ritchlin CT. Dendritic Cell-Specific Transmembrane Protein (DC-STAMP) Regulates Osteoclast Differentiation via the Ca 2+ /NFATc1 Axis. J Cell Physiol 2017; 232:2538-2549. [PMID: 27723141 DOI: 10.1002/jcp.25638] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Accepted: 10/07/2016] [Indexed: 12/16/2022]
Abstract
DC-STAMP is a multi-pass transmembrane protein essential for cell-cell fusion between osteoclast precursors during osteoclast (OC) development. DC-STAMP-/- mice have mild osteopetrosis and form mononuclear cells with limited resorption capacity. The identification of an Immunoreceptor Tyrosine-based Inhibitory Motif (ITIM) on the cytoplasmic tail of DC-STAMP suggested a potential signaling function. The absence of a known DC-STAMP ligand, however, has hindered the elucidation of downstream signaling pathways. To address this problem, we engineered a light-activatable DC-STAMP chimeric molecule in which light exposure mimics ligand engagement that can be traced by downstream Ca2+ signaling. Deletion of the cytoplasmic ITIM resulted in a significant elevation in the amplitude and duration of intracellular Ca2+ flux. Decreased NFATc1 expression in DC-STAMP-/- cells was restored by DC-STAMP over-expression. Multiple biological phenotypes including cell-cell fusion, bone erosion, cell mobility, DC-STAMP cell surface distribution, and NFATc1 nuclear translocation were altered by deletion of the ITIM and adjacent amino acids. In contrast, mutations on each of the tyrosine residues surrounding the ITIM showed no effect on DC-STAMP function. Collectively, our results suggest that the ITIM on DC-STAMP is a functional motif that regulates osteoclast differentiation through the NFATc1/Ca2+ axis. J. Cell. Physiol. 232: 2538-2549, 2017. © 2016 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Ya-Hui Chiu
- Division of Allergy/Immunology and Rheumatology, The University of Rochester, Rochester, New York
| | - Edward Schwarz
- The Center for Musculoskeletal Research, The University of Rochester, Rochester, New York
| | - Dongge Li
- Division of Allergy/Immunology and Rheumatology, The University of Rochester, Rochester, New York
| | - Yuexin Xu
- Microbiology and Immunology, The University of Rochester, Rochester, New York
| | - Tzong-Ren Sheu
- The Center for Musculoskeletal Research, The University of Rochester, Rochester, New York
| | - Jinbo Li
- Pathology and Laboratory Medicine, School of Medicine and Dentistry, The University of Rochester, Rochester, New York
| | - Karen L de Mesy Bentley
- Microbiology and Immunology, The University of Rochester, Rochester, New York.,Pathology and Laboratory Medicine, School of Medicine and Dentistry, The University of Rochester, Rochester, New York
| | - Changyong Feng
- Biostatistic, The University of Rochester, Rochester, New York
| | - Baoli Wang
- Hormones and Development, Metabolic Diseases Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Jhih-Cheng Wang
- Institution of Biomedical Engineering, National Cheng Kung University, Tainan City, Taiwan
| | - Liz Albertorio-Saez
- Division of Allergy/Immunology and Rheumatology, The University of Rochester, Rochester, New York
| | - Ronald Wood
- OB/GYN, Urology, Neuroscience, The University of Rochester, Rochester, New York
| | - Minsoo Kim
- Microbiology and Immunology, The University of Rochester, Rochester, New York
| | - Wensheng Wang
- 1st Affiliated Hospital, Xinxiang Medical University, Weihui City, Henan Province, China
| | - Christopher T Ritchlin
- Division of Allergy/Immunology and Rheumatology, The University of Rochester, Rochester, New York
| |
Collapse
|
202
|
Kim JM, Lee JH, Lee GS, Noh EM, Song HK, Gu DR, Kim SC, Lee SH, Kwon KB, Lee YR. Sophorae Flos extract inhibits RANKL-induced osteoclast differentiation by suppressing the NF-κB/NFATc1 pathway in mouse bone marrow cells. Altern Ther Health Med 2017; 17:164. [PMID: 28335757 PMCID: PMC5364702 DOI: 10.1186/s12906-016-1550-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 09/28/2016] [Indexed: 11/28/2022]
Abstract
Background Sophorae Flos (SF) is a composite of flowers and buds of Styphnolobium japonicum (L.) Schott and has been used in traditional Korean and Chinese medicine for the treatment of hemostasis and inflammation. Previous studies reported that SF possesses anti-obesity properties, as well as anti-allergic, anti-proliferative, and anti-inflammatory activities. However, the effect of SF in bone resorption has not been studies. In this study, we examined the potential of SF extract (SFE) to inhibit receptor activator of NF-κB ligand (RANKL) -induced osteoclast differentiation in cultured mouse-derived bone marrow macrophages (BMMs). Methods BMMs, that act as osteoclast precursors, were cultured with M-CSF (50 ng/ml) and RANKL (100 ng/ml) for 4 days to generate osteoclasts. Osteoclast differentiation was measured by tartrate-resistant acidic phosphatase (TRAP) staining and the TRAP solution assay. Osteoclast differentiation marker genes were analyzed by the quantitative real-time polymerase chain reaction analysis. RANKLs signaling pathways were confirmed through western blotting. Results SFE significantly decreased osteoclast differentiation in a dose-dependent manner. SFE inhibited RANKL-induced osteoclastogenesis by suppressing NF-κB activation. By contrast, SFE did not affect phospholipase C gamma 2 or subsequent cAMP response element binding activation. SFE inhibited the RANKL-induced expression of nuclear factor of activated T cells c1 (NFATc1). Conclusions SFE attenuated the RANKL-mediated induction of NF-κB through inhibition of IκBα phosphorylation, which contributed to inhibiting of RANKL-induced osteoclast differentiation through downregulation of NFATc1.
Collapse
|
203
|
Li BY, Gao YH, Pei JR, Yang YM, Zhang W, Sun DJ. ClC-7/Ostm1 contribute to the ability of tea polyphenols to maintain bone homeostasis in C57BL/6 mice, protecting against fluorosis. Int J Mol Med 2017; 39:1155-1163. [PMID: 28339032 PMCID: PMC5403613 DOI: 10.3892/ijmm.2017.2933] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 02/21/2017] [Indexed: 01/09/2023] Open
Abstract
Epidemiological investigations indicate that certain ingredients in tea bricks can antagonize the adverse effects of fluoride. Tea polyphenols (TPs), the most bioactive ingredient in tea bricks, have been demonstrated to be potent bone-supporting agents. ClC‑7 is known to be crucial for osteoclast (OC) bone resorption. Thus, in this study, we investigated the potential protective effects of TPs against fluorosis using a mouse model and explored the underlying mechanisms with particular focus on ClC‑7. A total of 40, healthy, 3‑week‑old male C57BL/6 mice were randomly divided into 4 groups (n=10/group) by weight as follows: distilled water (control group), 100 mg/l fluoridated water (F group), water containing 10 g/l TPs (TP group) and water containing 100 mg/l fluoride and 10 g/l TPs (F + TP group). After 15 weeks, and after the mice were sacrificed, the long bones were removed and bone marrow-derived macrophages were cultured ex vivo in order to perform several experiments. OCs were identified and counted by tartrate‑resistant acid phosphatase (TRAP) staining. The consumption of fluoride resulted in severe fluorosis and in an impaired OC function [impaired bone resorption, and a low mRNA expression of nuclear factor of activated T-cells 1 (NFATc1), ATPase H+ transporting V0 subunit D2 (ATP6v0d2) and osteopetrosis‑associated transmembrane protein 1 (Ostm1)]. In the F + TP group, fluorosis was attenuated and OC function was restored, but not the high bone fluoride content. Compared with the F group, mature OCs in the F + TP group expressed higher mRNA levels of ClC‑7 and Ostm1; the transportation and retaining of Cl‑ was improved, as shown by the fluorescence intensity experiment. On the whole, our findings indicate that TPs mitigate fluorosis in C57BL/6 mice by regulating OC bone resorption. Fluoride inhibits OC resorption by inhibiting ClC‑7 and Ostm1, whereas TPs attenuate this inhibitory effect of fluoride.
Collapse
Affiliation(s)
- Bing-Yun Li
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Yan-Hui Gao
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Jun-Rui Pei
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Yan-Mei Yang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Wei Zhang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Dian-Jun Sun
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| |
Collapse
|
204
|
In Vitro and In Vivo Effects of Gracilaria verrucosa Extracts on Osteoclast Differentiation. J Clin Med 2017; 6:jcm6030032. [PMID: 28335442 PMCID: PMC5373001 DOI: 10.3390/jcm6030032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 03/06/2017] [Accepted: 03/10/2017] [Indexed: 12/02/2022] Open
Abstract
Bone remodeling, a physiological process characterized by bone formation by osteoblasts and bone resorption by osteoclasts, is important for the maintenance of healthy bone in adult humans. Osteoclasts play a critical role in bone erosion and osteoporosis and are bone-specific multinucleated cells generated through differentiation of monocyte/macrophage lineage precursors. Receptor activator of NF-κB ligand (RANKL) has been reported to induce osteoclast differentiation. In this study, we explored whether Gracilaria verrucosa extracts (GE) could affect RANKL-mediated osteoclast differentiation. GE significantly inhibited RANKL-activated osteoclast differentiation by inhibiting protein expression of c-fos and nuclear factor of activated T-cells, cytoplasmic 1 (NFATc1), vital factors in RANKL-mediated osteoclastogenesis. In addition, GE attenuated ovariectomy-induced bone loss in mice. In summary, GE can prevent osteoclastogenesis and hormone-related bone loss via blockage of c-fos-NFATc1 signaling. Our results suggest that GE may have therapeutic potential in the treatment of postmenopausal osteoporosis.
Collapse
|
205
|
He LH, Liu M, He Y, Xiao E, Zhao L, Zhang T, Yang HQ, Zhang Y. TRPV1 deletion impaired fracture healing and inhibited osteoclast and osteoblast differentiation. Sci Rep 2017; 7:42385. [PMID: 28225019 PMCID: PMC5320507 DOI: 10.1038/srep42385] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 01/09/2017] [Indexed: 12/24/2022] Open
Abstract
Fracture healing, in which osteoclasts and osteoblasts play important roles, has drawn much clinical attention. Osteoclast deficiency or decreased osteoblast activity will impair fracture healing. TRPV1 is a member of the Ca2+ permeable cation channel subfamily, and pharmacological inhibition of TRPV1 prevents ovariectomy-induced bone loss, which makes TRPV1 a potential target for osteoporosis. However, whether long term TRPV1 inhibition or TRPV1 deletion will affect the fracture healing process is unclear. In this study, we found that the wild-type mice showed a well-remodeled fracture callus, whereas TRPV1 knockout mice still had an obvious fracture gap with unresorbed soft-callus 4 weeks post-fracture. The number of osteoclasts was reduced in the TRPV1 knockout fracture callus, and osteoclast formation and resorption activity were also impaired in vitro. TRPV1 deletion decreased the calcium oscillation frequency and peak cytoplasmic concentration in osteoclast precursors, subsequently reducing the expression and nuclear translocation of NFATc1 and downregulating DC-stamp, cathepsin K, and ATP6V. In addition, TRPV1 deletion caused reduced mRNA and protein expression of Runx2 and ALP in bone marrow stromal cells (BMSCs) and reduced calcium deposition in vitro. Our results suggest that TRPV1 deletion impairs fracture healing, and inhibited osteoclastogenesis and osteogenesis.
Collapse
Affiliation(s)
- Lin-Hai He
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of digital Stomatology, Beijing, China
| | - Meng Liu
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of digital Stomatology, Beijing, China
| | - Yang He
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of digital Stomatology, Beijing, China
| | - E. Xiao
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of digital Stomatology, Beijing, China
| | - Lu Zhao
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of digital Stomatology, Beijing, China
| | - Ting Zhang
- Center for Craniofacial Stem Cell Research and Regeneration, Department of Orthodontics, Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of digital Stomatology, Beijing, China
| | - Hua-Qian Yang
- State Key Laboratory of Biomembrane and Membrane Biotechnology, College of Life Sciences, Peking University, Beijing, China
| | - Yi Zhang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of digital Stomatology, Beijing, China
| |
Collapse
|
206
|
Wisitrasameewong W, Kajiya M, Movila A, Rittling S, Ishii T, Suzuki M, Matsuda S, Mazda Y, Torruella MR, Azuma MM, Egashira K, Freire MO, Sasaki H, Wang CY, Han X, Taubman MA, Kawai T. DC-STAMP Is an Osteoclast Fusogen Engaged in Periodontal Bone Resorption. J Dent Res 2017; 96:685-693. [PMID: 28199142 DOI: 10.1177/0022034517690490] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Dendritic cell-specific transmembrane protein (DC-STAMP) plays a key role in the induction of osteoclast (OC) cell fusion, as well as DC-mediated immune regulation. While DC-STAMP gene expression is upregulated in the gingival tissue with periodontitis, its pathophysiological roles in periodontitis remain unclear. To evaluate the effects of DC-STAMP in periodontitis, anti-DC-STAMP-monoclonal antibody (mAb) was tested in a mouse model of ligature-induced periodontitis ( n = 6-7/group) where Pasteurella pneumotropica ( Pp)-reactive immune response activated T cells to produce receptor activator of nuclear factor kappa-B ligand (RANKL), which, in turn, promotes the periodontal bone loss via upregulation of osteoclastogenesis. DC-STAMP was expressed on the cell surface of mature multinuclear OCs, as well as immature mononuclear OCs, in primary cultures of RANKL-stimulated bone marrow cells. Anti-DC-STAMP-mAb suppressed the emergence of large, but not small, multinuclear OCs, suggesting that DC-STAMP is engaged in the late stage of cell fusion. Anti-DC-STAMP-mAb also inhibited pit formation caused by RANKL-stimulated bone marrow cells. Attachment of ligature to a second maxillary molar induced DC-STAMP messenger RNA and protein, along with elevated tartrate-resistant acid phosphatase-positive (TRAP+) OCs and alveolar bone loss. As we expected, systemic administration of anti-DC-STAMP-mAb downregulated the ligature-induced alveolar bone loss. Importantly, local injection of anti-DC-STAMP-mAb also suppressed alveolar bone loss and reduced the total number of multinucleated TRAP+ cells in mice that received ligature attachment. Attachment of ligature induced significantly elevated tumor necrosis factor-α, interleukin-1β, and RANKL in the gingival tissue compared with the control site without ligature ( P < 0.05), which was unaffected by local injection with either anti-DC-STAMP-mAb or control-mAb. Neither in vivo anti- Pp IgG antibody nor in vitro anti- Pp T-cell response and resultant production of RANKL was affected by anti-DC-STAMP-mAb. This study illustrated the roles of DC-STAMP in promoting local OC cell fusion without affecting adaptive immune responses to oral bacteria. Therefore, it is plausible that a novel therapeutic regimen targeting DC-STAMP could suppress periodontal bone loss.
Collapse
Affiliation(s)
- W Wisitrasameewong
- 1 Department of Periodontology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.,2 Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA.,3 Harvard School of Dental Medicine, Boston, MA, USA
| | - M Kajiya
- 4 Hiroshima University Graduate School of Biomedical Sciences, Periodontal Medicine, Hiroshima, Japan
| | - A Movila
- 2 Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA
| | - S Rittling
- 2 Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA
| | - T Ishii
- 5 Tokyo Dental College, Tokyo, Chiyoda-ku, Japan
| | - M Suzuki
- 6 College of Dentistry, The Ohio State University, Columbus, OH, USA
| | - S Matsuda
- 4 Hiroshima University Graduate School of Biomedical Sciences, Periodontal Medicine, Hiroshima, Japan
| | - Y Mazda
- 2 Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA
| | - M R Torruella
- 2 Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA
| | - M M Azuma
- 2 Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA.,7 Araçatuba Dental School, Department of Endodontics, UnivEstadual Paulista, Araçatuba, São Paulo, Brazil
| | - K Egashira
- 2 Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA.,8 LION Corporation, Research and Development Headquarters, Odawara, Kanagawa, Japan
| | - M O Freire
- 2 Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA
| | - H Sasaki
- 2 Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA
| | - C Y Wang
- 9 UCLA, Lab of Molecular Signaling, Division of Oral Biology and Medicine, UCLA, Los Angeles, CA, USA
| | - X Han
- 2 Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA
| | - M A Taubman
- 2 Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA
| | - T Kawai
- 10 Department of Periodontology, NOVA Southeastern University College of Dental Medicine, Fort Lauderdale, FL, USA
| |
Collapse
|
207
|
Deepak V, Wang B, Koot D, Kasonga A, Stander XX, Coetzee M, Stander A. In silico design and bioevaluation of selective benzotriazepine BRD4 inhibitors with potent antiosteoclastogenic activity. Chem Biol Drug Des 2017; 90:97-111. [DOI: 10.1111/cbdd.12930] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 11/16/2016] [Accepted: 12/01/2016] [Indexed: 01/05/2023]
Affiliation(s)
- Vishwa Deepak
- Department of Physiology; Faculty of Health Sciences; University of Pretoria; Pretoria South Africa
| | | | - Dwayne Koot
- Department of Chemistry; Faculty of Natural and Agricultural Sciences; University of Pretoria; Pretoria South Africa
| | - Abe Kasonga
- Department of Physiology; Faculty of Health Sciences; University of Pretoria; Pretoria South Africa
| | - Xiao Xing Stander
- Department of General Surgery; Faculty of Health Sciences; University of Pretoria; Pretoria South Africa
| | - Magdalena Coetzee
- Department of Physiology; Faculty of Health Sciences; University of Pretoria; Pretoria South Africa
- Institute for Food; Nutrition and Well-being; University of Pretoria; Pretoria South Africa
| | - Andre Stander
- Department of Physiology; Faculty of Health Sciences; University of Pretoria; Pretoria South Africa
| |
Collapse
|
208
|
Jeong BC, Kim JH, Kim K, Kim I, Seong S, Kim N. ATF3 modulates calcium signaling in osteoclast differentiation and activity by associating with c-Fos and NFATc1 proteins. Bone 2017; 95:33-40. [PMID: 27829167 DOI: 10.1016/j.bone.2016.11.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 10/27/2016] [Accepted: 11/05/2016] [Indexed: 11/26/2022]
Abstract
Activating transcription factor 3 (ATF3), a member of the ATF/cAMP response element-binding protein family of transcription factors, has been implicated in the regulation of cell proliferation and differentiation. However, whether ATF3 is involved in osteoclast differentiation and activity has not been well-studied. In the present study, we examined the role of ATF3 in osteoclast differentiation and function. ATF3 expression was down-regulated during RANKL-induced osteoclast differentiation. Overexpression of ATF3 in bone marrow-derived monocyte/macrophage lineage cells (BMMs) promoted osteoclast differentiation and activity and strongly induced the expression of osteoclast genes encoding nuclear factor of activated T-cells c1 (NFATc1) and tartrate-resistant acid phosphatase (TRAP) compared to that in the control group. In contrast, small interfering RNA-mediated knockdown of ATF3 prevented the formation of multinucleated osteoclasts and markedly abrogated the expression of osteoclast marker genes. Mechanistically, ATF3 synergistically enhanced c-Fos- or NFAT-mediated transcriptional activity of the NFATc1 or TRAP promoter, respectively. Furthermore, ATF3 physically interacted with c-Fos and NFATc1 and enhanced the binding affinity of c-Fos and NFATc1 to the promoters. Interestingly, ATF3 is involved in calcium signaling during osteoclastogenesis. Taken together, these results suggest that ATF3 is a new co-factor of c-Fos and NFATc1 to activate osteoclast differentiation and activity.
Collapse
Affiliation(s)
- Byung-Chul Jeong
- Department of Pharmacology, Chonnam National University Medical School, Gwangju 61469, Republic of Korea; Department of Biomedical Sciences, Chonnam National University Medical School, Gwangju 61469, Republic of Korea; Department of Pharmacology, Seonam University Medical School, Namwon, Chonbuk 55724, Republic of Korea
| | - Jung Ha Kim
- Department of Pharmacology, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
| | - Kabsun Kim
- Department of Pharmacology, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
| | - Inyoung Kim
- Department of Pharmacology, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
| | - Semun Seong
- Department of Pharmacology, Chonnam National University Medical School, Gwangju 61469, Republic of Korea; Department of Biomedical Sciences, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
| | - Nacksung Kim
- Department of Pharmacology, Chonnam National University Medical School, Gwangju 61469, Republic of Korea; Department of Biomedical Sciences, Chonnam National University Medical School, Gwangju 61469, Republic of Korea.
| |
Collapse
|
209
|
Kanzaki H, Movila A, Kayal R, Napimoga MH, Egashira K, Dewhirst F, Sasaki H, Howait M, Al-Dharrab A, Mira A, Han X, Taubman MA, Nichols FC, Kawai T. Phosphoglycerol dihydroceramide, a distinctive ceramide produced by Porphyromonas gingivalis, promotes RANKL-induced osteoclastogenesis by acting on non-muscle myosin II-A (Myh9), an osteoclast cell fusion regulatory factor. Biochim Biophys Acta Mol Cell Biol Lipids 2017; 1862:452-462. [PMID: 28153611 DOI: 10.1016/j.bbalip.2017.01.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 12/29/2016] [Accepted: 01/30/2017] [Indexed: 12/31/2022]
Abstract
Among several virulence factors produced by the periodontal pathogen Porphyromonas gingivalis (Pg), a recently identified novel class of dihydroceramide lipids that contains a long acyl-chain has the potential to play a pathogenic role in periodontitis because of its higher level of tissue penetration compared to other lipid classes produced by Pg. However, the possible impact of Pg ceramides on osteoclastogenesis is largely unknown. In the present study, we report that the phosphoglycerol dihydroceramide (PGDHC) isolated from Pg enhanced osteoclastogenesis in vitro and in vivo. Using RAW264.7 cells, in vitro assays indicated that PGDHC can promote RANKL-induced osteoclastogenesis by generating remarkably larger TRAP+ multinuclear osteoclasts compared to Pg LPS in a TLR2/4-independent manner. According to fluorescent confocal microscopy, co-localization of non-muscle myosin II-A (Myh9) and PGDHC was observed in the cytoplasm of osteoclasts, indicating the membrane-permeability of PGDHC. Loss- and gain-of-function assays using RNAi-based Myh9 gene silencing, as well as overexpression of the Myh9 gene, in RAW264.7 cells showed that interaction of PGDHC with Myh9 enhances RANKL-induced osteoclastogenesis. It was also demonstrated that PGDHC can upregulate the expression of dendritic cell-specific transmembrane protein (DC-STAMP), an important osteoclast fusogen, through signaling that involves Rac1, suggesting that interaction of PGDHC with Myh9 can elicit the cell signal that promotes osteoclast cell fusion. Taken together, our data indicated that PGDHC is a Pg-derived, cell-permeable ceramide that possesses a unique property of promoting osteoclastogenesis via interaction with Myh9 which, in turn, activates a Rac1/DC-STAMP pathway for upregulation of osteoclast cell fusion.
Collapse
Affiliation(s)
- Hiroyuki Kanzaki
- The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, MA, USA; Tsurumi University, School of Dental Medicine, Department of Orthodontics, Kanagawa, Japan.
| | - Alexandru Movila
- The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, MA, USA.
| | - Rayyan Kayal
- Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Marcelo H Napimoga
- Laboratory of Immunology and Molecular Biology, São Leopoldo Mandic Institute and Research Center, São Paulo, Brazil.
| | - Kenji Egashira
- Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA; LION Corporation, Research and Development Headquarters, Odawara, Kanagawa, Japan
| | - Floyd Dewhirst
- The Forsyth Institute, Department of Microbiology, Cambridge, MA, USA; Harvard School of Dental Medicine, Department of Oral Medicine, Infection and Immunity, Boston, MA, USA.
| | - Hajime Sasaki
- The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, MA, USA; Harvard School of Dental Medicine, Department of Oral Medicine, Infection and Immunity, Boston, MA, USA.
| | - Mohammed Howait
- Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Ayman Al-Dharrab
- Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Abdulghani Mira
- Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Xiaozhe Han
- The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, MA, USA; Harvard School of Dental Medicine, Department of Oral Medicine, Infection and Immunity, Boston, MA, USA.
| | - Martin A Taubman
- The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, MA, USA; Harvard School of Dental Medicine, Department of Oral Medicine, Infection and Immunity, Boston, MA, USA.
| | - Frank C Nichols
- Department of Oral Health and Diagnostic Sciences, University of Connecticut School of Dental Medicine, Farmington, CT, USA.
| | - Toshihisa Kawai
- The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, MA, USA; Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA; NOVA Southeastern University College of Dental Medicine, Department of Periodontology, Fort Lauderdale, FL, USA.
| |
Collapse
|
210
|
Zito F, Lampiasi N, Kireev I, Russo R. United we stand: Adhesion and molecular mechanisms driving cell fusion across species. Eur J Cell Biol 2016; 95:552-562. [DOI: 10.1016/j.ejcb.2016.09.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 09/13/2016] [Accepted: 09/19/2016] [Indexed: 01/14/2023] Open
|
211
|
Lee CJ, Shim KS, Ma JY. Artemisia capillaris Alleviates Bone Loss by Stimulating Osteoblast Mineralization and Suppressing Osteoclast Differentiation and Bone Resorption. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2016; 44:1675-1691. [PMID: 27852127 DOI: 10.1142/s0192415x16500944] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Artemisia capillaris has been used to treat jaundice and relieve high liver-heat in traditional medicine. In this study, we found that the administration of a water extract from A. capillaris (WEAC) to the receptor activator of nuclear factor kappa-B ligand (RANKL)-induced bone loss model significantly prevents osteoporotic bone loss, increasing bone volume/trabecular volume by 22% and trabecular number by 24%, and decreasing trabecular separation by 29%. WEAC stimulated in vitro osteoblast mineralization from primary osteoblasts in association with increasing expression of osterix, nuclear factor of activated T cells cytoplasmic 1, and activator protein-1, as well as phosphorylation of extracellular signal-regulated kinase. In contrast to the anabolic effect of WEAC, WEAC significantly suppressed in vitro osteoclast formation from bone marrow macrophages by inhibiting the RANKL signaling pathways and bone resorption by downregulating the expression of resorption markers. Therefore, this study demonstrated that WEAC has a beneficial effect on bone loss through the regulation of osteoblast mineralization, as well as osteoclast formation and bone resorption. These results suggest that A. capillaris may be a promising herbal candidate for therapeutic agents to treat or prevent osteoporotic bone diseases.
Collapse
Affiliation(s)
- Chung-Jo Lee
- 1 KM Application Center, Korea Institute of Oriental Medicine, Dong-gu, Daegu 701-300, Republic of Korea
| | - Ki-Shuk Shim
- 1 KM Application Center, Korea Institute of Oriental Medicine, Dong-gu, Daegu 701-300, Republic of Korea
| | - Jin Yeul Ma
- 1 KM Application Center, Korea Institute of Oriental Medicine, Dong-gu, Daegu 701-300, Republic of Korea
| |
Collapse
|
212
|
Zarei A, Morovat A, Javaid K, Brown CP. Vitamin D receptor expression in human bone tissue and dose-dependent activation in resorbing osteoclasts. Bone Res 2016; 4:16030. [PMID: 27785371 PMCID: PMC5057180 DOI: 10.1038/boneres.2016.30] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 07/17/2016] [Accepted: 08/07/2016] [Indexed: 12/20/2022] Open
Abstract
The effects of vitamin D on osteoblast mineralization are well documented. Reports of the effects of vitamin D on osteoclasts, however, are conflicting, showing both inhibition and stimulation. Finding that resorbing osteoclasts in human bone express vitamin D receptor (VDR), we examined their response to different concentrations of 25-hydroxy vitamin D3 [25(OH)D3] (100 or 500 nmol·L-1) and 1,25-dihydroxy vitamin D3 [1,25(OH)2D3] (0.1 or 0.5 nmol·L-1) metabolites in cell cultures. Specifically, CD14+ monocytes were cultured in charcoal-stripped serum in the presence of receptor activator of nuclear factor kappa-B ligand (RANKL) and macrophage colony-stimulating factor (M-CSF). Tartrate-resistant acid phosphatase (TRAP) histochemical staining assays and dentine resorption analysis were used to identify the size and number of osteoclast cells, number of nuclei per cell and resorption activity. The expression of VDR was detected in human bone tissue (ex vivo) by immunohistochemistry and in vitro cell cultures by western blotting. Quantitative reverse transcription-PCR (qRT-PCR) was used to determine the level of expression of vitamin D-related genes in response to vitamin D metabolites. VDR-related genes during osteoclastogenesis, shown by qRT-PCR, was stimulated in response to 500 nmol·L-1 of 25(OH)D3 and 0.1-0.5 nmol·L-1 of 1,25(OH)2D3, upregulating cytochrome P450 family 27 subfamily B member 1 (CYP27B1) and cytochrome P450 family 24 subfamily A member 1 (CYP24A1). Osteoclast fusion transcripts transmembrane 7 subfamily member 4 (tm7sf4) and nuclear factor of activated T-cell cytoplasmic 1 (nfatc1) where downregulated in response to vitamin D metabolites. Osteoclast number and resorption activity were also increased. Both 25(OH)D3 and 1,25(OH)2D3 reduced osteoclast size and number when co-treated with RANKL and M-CSF. The evidence for VDR expression in resorbing osteoclasts in vivo and low-dose effects of 1,25(OH)2D3 on osteoclasts in vitro may therefore provide insight into the effects of clinical vitamin D treatments, further providing a counterpoint to the high-dose effects reported from in vitro experiments.
Collapse
Affiliation(s)
- Allahdad Zarei
- Botnar Research Centre, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Science, University of Oxford, Oxford, UK
| | - Alireza Morovat
- Clinical Biochemistry, Oxford University Hospitals NHS Trust, Oxford, UK
| | - Kassim Javaid
- Botnar Research Centre, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Science, University of Oxford, Oxford, UK
| | - Cameron P Brown
- Botnar Research Centre, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Science, University of Oxford, Oxford, UK
| |
Collapse
|
213
|
Kim JY, Baek JM, Ahn SJ, Cheon YH, Park SH, Yang M, Choi MK, Oh J. Ethanolic extract of Schizonepeta tenuifolia attenuates osteoclast formation and activation in vitro and protects against lipopolysaccharide-induced bone loss in vivo. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 16:301. [PMID: 27550314 PMCID: PMC4994400 DOI: 10.1186/s12906-016-1300-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 08/18/2016] [Indexed: 12/16/2022]
Abstract
Background Excessive osteoclast activity is a major cause of metabolic bone disorders, such as osteopenia, rheumatoid arthritis, and osteoporosis. Thus, discovery of agents targeting osteoclast differentiation and bone resorption is important for development of novel treatments for bone diseases. It has been demonstrated that ethanolic extract of schizonepeta tenuifolia (EEST) has potent anti-oxidant and anti-inflammatory activities. However, the beneficial effects of EEST on bone metabolism have not been studied. Therefore, we intend to investigate the effects of EEST on osteoclast differentiation. Methods We examined the effects and mechanisms of action of the EEST on osteoclastogenesis in vitro in bone marrow macrophages (BMMs) stimulated with receptor activator of nuclear factor kappa-B ligand (RANKL) and in vivo using a mouse model of lipopolysaccharide (LPS)-induced bone destruction. Results We found that EEST inhibited phosphorylation of Akt and IkB at early stages of RANKL-induced osteoclastogenesis. Furthermore, EEST negatively controlled the transcription and translation levels of nuclear factor of activated T cells c1 (NFATc1) and the translation level of c-Fos at the final stage of osteoclast differentiation. Reflecting these effects, EEST blocked both filamentous actin (F-actin) ring formation and bone resorbing activity of mature osteoclasts in vitro. The inhibitory effects of EEST on osteoclast formation and activity were observed in an LPS-mediated bone erosion mouse model using micro-CT and histological analysis. Conclusions EEST is a potential agent that is able to treat osteoclast-related bone diseases, such as osteoporosis.
Collapse
|
214
|
Sundaram K, Sambandam Y, Shanmugarajan S, Rao DS, Reddy SV. Measles virus nucleocapsid protein modulates the Signal Regulatory Protein-β1 (SIRPβ1) to enhance osteoclast differentiation in Paget's disease of bone. Bone Rep 2016; 7:26-32. [PMID: 28840181 PMCID: PMC5558424 DOI: 10.1016/j.bonr.2016.06.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 06/13/2016] [Indexed: 10/28/2022] Open
Abstract
Paget's disease of bone (PDB) is a chronic localized bone disorder in an elderly population. Environmental factors such as paramyxovirus are implicated in PDB and measles virus nucleocapsid protein (MVNP) has been shown to induce pagetic osteoclasts (OCLs). However, the molecular mechanisms underlying MVNP stimulation of OCL differentiation in the PDB are unclear. We therefore determined the MVNP regulated gene expression profiling during OCL differentiation. Agilent microarray analysis of gene expression identified high levels of SIRPβ1 (353-fold) expression in MVNP transduced human bone marrow mononuclear cells stimulated with RANKL. Real-time PCR analysis further confirmed that MVNP alone upregulates SIRPβ1 mRNA expression in these cells. Also, bone marrow mononuclear cells derived from patients with PDB showed high levels of SIRPβ1 mRNA expression compared to normal subjects. We further show that MVNP increases SIRPβ1 interaction with DAP12 adaptor protein in the presence and absence of RANKL stimulation. shRNA knockdown of SIRPβ1 expression in normal human bone marrow monocytes decreased the levels of MVNP enhanced p-Syk and c-Fos expression. In addition, SIRPβ1 knockdown significantly decreased MVNP stimulated dendritic cell-specific transmembrane protein (DC-STAMP) and connective tissue growth factor (CTGF) mRNA expression during OCL differentiation. Furthermore, we demonstrated the contribution of SIRPβ1 in MVNP induced OCL formation and bone resorption. Thus, our results suggest that MVNP modulation of SIRPβ1 provides new insights into the molecular mechanisms which control high bone turnover in PDB.
Collapse
Affiliation(s)
- Kumaran Sundaram
- Darby Children's Research Institute, Medical University of South Carolina, Charleston, SC, USA
| | - Yuvaraj Sambandam
- Darby Children's Research Institute, Medical University of South Carolina, Charleston, SC, USA
| | | | | | - Sakamuri V Reddy
- Darby Children's Research Institute, Medical University of South Carolina, Charleston, SC, USA
| |
Collapse
|
215
|
Chiu YH, Ritchlin CT. DC-STAMP: A Key Regulator in Osteoclast Differentiation. J Cell Physiol 2016; 231:2402-7. [PMID: 27018136 DOI: 10.1002/jcp.25389] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 03/24/2016] [Indexed: 01/09/2023]
Abstract
Osteoimmunology research is a new emerging research field that investigates the links between the bone and immune responses. Results from osteoimmunology studies suggest that bone is not only an essential component of the musculoskeletal system, but is also actively involved in immune regulation. Many important factors involved in immune regulation also participate in bone homeostasis. Bone homeostasis is achieved by a coordinated action between bone-synthesizing osteoblasts and bone-degrading osteoclasts. An imbalanced action between osteoblasts and osteoclasts often results in pathological bone diseases: osteoporosis is caused by an excessive osteoclast activity, whereas osteopetrosis results from an increased osteoblast activity. This review focuses on dendritic cell-specific transmembrane protein (DC-STAMP), an important protein currently considered as a master regulator of osteoclastogenesis. Of clinical relevance, the frequency of circulating DC-STAMP+ cells is elevated during the pathogenesis of psoriatic diseases. Intriguingly, recent results suggest that DC-STAMP also plays an imperative role in bone homeostasis by regulating the differentiation of both osteoclasts and osteoblasts. This article summarizes our current knowledge on DC-STAMP by focusing on its interacting proteins, its regulation on osteoclastogenesis-related genes, its possible involvement in immunoreceptor tyrosine-based inhibitory motif (ITIM)-mediated signaling cascade, and its potential of developing therapeutics for clinical applications. J. Cell. Physiol. 231: 2402-2407, 2016. © 2016 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Ya-Hui Chiu
- Division of Allergy, Immunology and Rheumatology, School of Medicine, University of Rochester, Rochester, New York
| | - Christopher T Ritchlin
- Division of Allergy, Immunology and Rheumatology, School of Medicine, University of Rochester, Rochester, New York
| |
Collapse
|
216
|
Oliveira MC, Di Ceglie I, Arntz OJ, van den Berg WB, van den Hoogen FHJ, Ferreira AVM, van Lent PLEM, van de Loo FAJ. Milk-Derived Nanoparticle Fraction Promotes the Formation of Small Osteoclasts But Reduces Bone Resorption. J Cell Physiol 2016; 232:225-33. [PMID: 27138291 DOI: 10.1002/jcp.25414] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Accepted: 04/29/2016] [Indexed: 01/15/2023]
Abstract
The general consensus is that milk promotes bone growth and density because is a source of calcium and contains components that enhance intestinal calcium uptake or directly affect bone metabolism. In this study, we investigated the effect of bovine-derived milk 100,000 g pellet (P100), which contains nanoparticles (<220 nm) including extracellular vesicles, on osteoclast differentiation and bone resorption. Bone marrow-derived osteoclast precursor cells were differentiated into osteoclasts by M-CSF and RANKL (control) and in the presence of milk P100. Milk P100 treatment until day 4 increased the number of TRAP-positive mononuclear cells and small (≤5 nuclei) osteoclasts. The number of large (≥6 nuclei) osteoclasts remained the same. These alterations were associated with increased expression of TRAP, NFATc1, and c-Fos. Cells seeded in a calcium-phosphate coated plate or bone slices showed reduced resorption area when exposed to milk P100 during the differentiation phase and even after osteoclast formation. Interestingly, milk P100 treatment enhanced Cathepsin K expression but reduced Carbonic Anhydrase 2 gene expression. Moreover, intracellular acid production was also decreased by milk P100 treatment. Oral delivery of milk P100 to female DBA1/J mice for 7 weeks did not alter bone area; however, increased osteoclast number and area in tibia without changes in serum RANKL and CTX-I levels. We showed for the first time the effect of milk P100 on osteoclast differentiation both in vitro and in vivo and found that milk P100 increased the formation of small osteoclasts but this does not lead to more bone resorption probably due to reduced acid secretion. J. Cell. Physiol. 232: 225-233, 2017. © 2016 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Marina C Oliveira
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands.,Department of Nutrition, Nursing School, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Irene Di Ceglie
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Onno J Arntz
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Wim B van den Berg
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Adaliene V M Ferreira
- Department of Nutrition, Nursing School, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Peter L E M van Lent
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Fons A J van de Loo
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands.
| |
Collapse
|
217
|
Park SJ, Huh JE, Shin J, Park DR, Ko R, Jin GR, Seo DH, Kim HS, Shin HI, Oh GT, Kim HS, Lee SY. Sirt6 cooperates with Blimp1 to positively regulate osteoclast differentiation. Sci Rep 2016; 6:26186. [PMID: 27189179 PMCID: PMC4870620 DOI: 10.1038/srep26186] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 04/27/2016] [Indexed: 01/06/2023] Open
Abstract
Global deletion of the gene encoding a nuclear histone deacetylase sirtuin 6 (Sirt6) in mice leads to osteopenia with a low bone turnover due to impaired bone formation. But whether Sirt6 regulates osteoclast differentiation is less clear. Here we show that Sirt6 functions as a transcriptional regulator to directly repress anti-osteoclastogenic gene expression. Targeted ablation of Sirt6 in hematopoietic cells including osteoclast precursors resulted in increased bone volume caused by a decreased number of osteoclasts. Overexpression of Sirt6 led to an increase in osteoclast formation, and Sirt6-deficient osteoclast precursor cells did not undergo osteoclast differentiation efficiently. Moreover, we showed that Sirt6, induced by RANKL-dependent NFATc1 expression, forms a complex with B lymphocyte-induced maturation protein-1 (Blimp1) to negatively regulate expression of anti-osteoclastogenic gene such as Mafb. These findings identify Sirt6 as a novel regulator of osteoclastogenesis by acting as a transcriptional repressor.
Collapse
Affiliation(s)
- So Jeong Park
- Department of Life Science, Ewha Womans University, Seoul 120-750, Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea
| | - Jeong-Eun Huh
- Department of Life Science, Ewha Womans University, Seoul 120-750, Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea
| | - Jihye Shin
- Department of Life Science, Ewha Womans University, Seoul 120-750, Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea
| | - Doo Ri Park
- Department of Life Science, Ewha Womans University, Seoul 120-750, Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea
| | - Ryeojin Ko
- Department of Life Science, Ewha Womans University, Seoul 120-750, Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea
| | - Gyu-Rin Jin
- The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea.,Department of Bioinspired Science, Ewha Womans University, Seoul 120-750, Korea
| | - Dong-Hyun Seo
- Department of Biomedical Engineering, College of Health Science, Institute of Medical Engineering, Yonsei University, Wonju, Korea
| | - Han-Sung Kim
- Department of Biomedical Engineering, College of Health Science, Institute of Medical Engineering, Yonsei University, Wonju, Korea
| | - Hong-In Shin
- IHBR, Department of Oral Pathology, School of Dentistry, Kyungpook National University, Daegu 700-412, Korea
| | - Goo Taeg Oh
- Department of Life Science, Ewha Womans University, Seoul 120-750, Korea
| | - Hyun Seok Kim
- The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea.,Department of Bioinspired Science, Ewha Womans University, Seoul 120-750, Korea
| | - Soo Young Lee
- Department of Life Science, Ewha Womans University, Seoul 120-750, Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea
| |
Collapse
|
218
|
Oh SJ, Gu DR, Jin SH, Park KH, Lee SH. Cytosolic malate dehydrogenase regulates RANKL-mediated osteoclastogenesis via AMPK/c-Fos/NFATc1 signaling. Biochem Biophys Res Commun 2016; 475:125-32. [PMID: 27179783 DOI: 10.1016/j.bbrc.2016.05.055] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 05/10/2016] [Indexed: 01/15/2023]
Abstract
Cytosolic malate dehydrogenase (malate dehydrogenase 1, MDH1) plays pivotal roles in the malate/aspartate shuttle that might modulate metabolism between the cytosol and mitochondria. In this study, we investigated the role of MDH1 in osteoclast differentiation and formation. MDH1 expression was induced by receptor activator of nuclear factor kappa-B ligand (RANKL) treatment. Knockdown of MDH1 by infection with retrovirus containing MDH1-specific shRNA (shMDH1) reduced mature osteoclast formation and bone resorption activity. Moreover, the expression of marker genes associated with osteoclast differentiation was downregulated by shMDH1 treatment, suggesting a role of MDH1 in osteoclast differentiation. In addition, intracellular ATP production was reduced following the activation of adenosine 5' monophosphate-activated protein kinase (AMPK), a cellular energy sensor and negative regulator of RANKL-induced osteoclast differentiation, in shMDH1-infected osteoclasts compared to control cells. In addition, the expression of c-Fos and nuclear factor of activated T-cells, cytoplasmic 1 (NFATc1), a critical transcription factor of osteoclastogenesis, was decreased with MDH1 knockdown during RANKL-mediated osteoclast differentiation. These findings provide strong evidence that MDH1 plays a critical role in osteoclast differentiation and function via modulation of the intracellular energy status, which might affect AMPK activity and NFATc1 expression.
Collapse
Affiliation(s)
- Se Jeong Oh
- Department of Oral Microbiology and Immunology, College of Dentistry, Wonkwang University, Iksan, Jeonbuk 54538, Republic of Korea
| | - Dong Ryun Gu
- Department of Oral Microbiology and Immunology, College of Dentistry, Wonkwang University, Iksan, Jeonbuk 54538, Republic of Korea; Center for Metabolic Function Regulation (CMFR), School of Medicine, Wonkwang University, Iksan, Jeonbuk 54538, Republic of Korea
| | - Su Hyun Jin
- Center for Metabolic Function Regulation (CMFR), School of Medicine, Wonkwang University, Iksan, Jeonbuk 54538, Republic of Korea
| | - Keun Ha Park
- Department of Oral Microbiology and Immunology, College of Dentistry, Wonkwang University, Iksan, Jeonbuk 54538, Republic of Korea; Center for Metabolic Function Regulation (CMFR), School of Medicine, Wonkwang University, Iksan, Jeonbuk 54538, Republic of Korea
| | - Seoung Hoon Lee
- Department of Oral Microbiology and Immunology, College of Dentistry, Wonkwang University, Iksan, Jeonbuk 54538, Republic of Korea; Center for Metabolic Function Regulation (CMFR), School of Medicine, Wonkwang University, Iksan, Jeonbuk 54538, Republic of Korea; Wonkwang Institute of Biomaterials and Implant, Wonkwang University, Iksan, Jeonbuk 54538, Republic of Korea.
| |
Collapse
|
219
|
Fiorino C, Harrison RE. E-cadherin is important for cell differentiation during osteoclastogenesis. Bone 2016; 86:106-18. [PMID: 26959175 DOI: 10.1016/j.bone.2016.03.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 01/29/2016] [Accepted: 03/04/2016] [Indexed: 01/05/2023]
Abstract
E-cadherin, a protein responsible for intercellular adhesion between epithelial cells, is also expressed in the monocyte/macrophage lineage. In this study we have explored the involvement of E-cadherin during receptor activator of nuclear factor-κB ligand (RANKL)-stimulated osteoclast differentiation. Osteoclastogenesis involves a period of precursor expansion followed by multiple fusion events to generate a multinuclear osteoclast that is capable of bone resorption. We asked whether E-cadherin participated in early precursor interactions and recognition or was a component of the osteoclast fusion machinery. Here, we show that endogenous E-cadherin expression is the highest during early stages of osteoclast differentiation, with surface expression visible on small precursor cells (fewer than four nuclei per cell) in both RAW 264.7 cells and primary macrophages. Blocking E-cadherin function with neutralizing antibodies prior to the onset of fusion delayed the expression of TRAP, Cathepsin K, DC-STAMP and NFATc1 and significantly diminished multinucleated osteoclast formation. Conversely, E-cadherin-GFP overexpressing macrophages displayed earlier NFATc1 nuclear translocation along with faster formation of multinucleated osteoclasts compared to control macrophages. Through live imaging we identified that disrupting E-cadherin function prolonged the proliferative phase of the precursor population while concomitantly decreasing the proportion of migrating precursors. The lamellipodium and polarized membrane extensions appeared to be the principal sites of fusion, indicating precursor migration was a critical factor contributing to osteoclast fusion. These findings demonstrate that E-cadherin-mediated cell-cell contacts can modulate osteoclast-specific gene expression and prompt differentiating osteoclast precursors toward migratory and fusion activities.
Collapse
Affiliation(s)
- Cara Fiorino
- Department of Cell & Systems Biology, University of Toronto, Toronto, Ontario M1C 1A4, Canada; Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario M1C 1A4, Canada
| | - Rene E Harrison
- Department of Cell & Systems Biology, University of Toronto, Toronto, Ontario M1C 1A4, Canada; Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario M1C 1A4, Canada.
| |
Collapse
|
220
|
Zhou L, Liu Q, Yang M, Wang T, Yao J, Cheng J, Yuan J, Lin X, Zhao J, Tickner J, Xu J. Dihydroartemisinin, an Anti-Malaria Drug, Suppresses Estrogen Deficiency-Induced Osteoporosis, Osteoclast Formation, and RANKL-Induced Signaling Pathways. J Bone Miner Res 2016; 31:964-74. [PMID: 26684711 DOI: 10.1002/jbmr.2771] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 12/01/2015] [Accepted: 12/16/2015] [Indexed: 12/19/2022]
Abstract
Osteoporosis is an osteolytic disease that features enhanced osteoclast formation and bone resorption. Identification of agents that can inhibit osteoclast formation and function is important for the treatment of osteoporosis. Dihydroartemisinin is a natural compound used to treat malaria but its role in osteoporosis is not known. Here, we found that dihydroartemisinin can suppress RANKL-induced osteoclastogenesis and bone resorption in a dose-dependent manner. Dihydroartemisinin inhibited the expression of osteoclast marker genes such as cathepsin K, calcitonin receptor, and tartrate-resistant acid phosphatase (TRAcP). Furthermore, dihydroartemisinin inhibited RANKL-induced NF-κB and NFAT activity. In addition, using an in vivo ovariectomized mouse model, we show that dihydroartemisinin is able to reverse the bone loss caused by ovariectomy. Together, this study shows that dihydroartemisinin attenuates bone loss in ovariectomized mice through inhibiting RANKL-induced osteoclast formation and function. This indicates that dihydroartemisinin, the first physiology or medicine nobel prize discovery of China, is a potential treatment option against osteolytic bone disease. © 2015 American Society for Bone and Mineral Research.
Collapse
Affiliation(s)
- Lin Zhou
- School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia
| | - Qian Liu
- School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia.,Research Centre for Regenerative Medicine and Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Guangxi, China
| | - Mingli Yang
- School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia
| | - Tao Wang
- Research Centre for Regenerative Medicine and Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Guangxi, China
| | - Jun Yao
- School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia.,Research Centre for Regenerative Medicine and Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Guangxi, China
| | - Jianwen Cheng
- School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia.,Research Centre for Regenerative Medicine and Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Guangxi, China
| | - Jinbo Yuan
- School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia
| | - Xixi Lin
- Research Centre for Regenerative Medicine and Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Guangxi, China
| | - Jinmin Zhao
- Research Centre for Regenerative Medicine and Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Guangxi, China
| | - Jennifer Tickner
- School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia
| | - Jiake Xu
- School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia.,Research Centre for Regenerative Medicine and Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Guangxi, China
| |
Collapse
|
221
|
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.
Collapse
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.
| |
Collapse
|
222
|
Ahn H, Lee K, Kim JM, Kwon SH, Lee SH, Lee SY, Jeong D. Accelerated Lactate Dehydrogenase Activity Potentiates Osteoclastogenesis via NFATc1 Signaling. PLoS One 2016; 11:e0153886. [PMID: 27077737 PMCID: PMC4831772 DOI: 10.1371/journal.pone.0153886] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 04/05/2016] [Indexed: 11/19/2022] Open
Abstract
Osteoclasts seem to be metabolic active during their differentiation and bone-resorptive activation. However, the functional role of lactate dehydrogenase (LDH), a tetrameric enzyme consisting of an A and/or B subunit that catalyzes interconversion of pyruvate to lactate, in RANKL-induced osteoclast differentiation is not known. In this study, RANKL treatment induced gradual gene expression and activation of the LDH A2B2 isotype during osteoclast differentiation as well as the LDH A1B3 and B4 isotypes during osteoclast maturation after pre-osteoclast formation. Glucose consumption and lactate production in growth media were accelerated during osteoclast differentiation, together with enhanced expression of H+-lactate co-transporter and increased extracellular acidification, demonstrating that glycolytic metabolism was stimulated during differentiation. Further, oxygen consumption via mitochondria was stimulated during osteoclast differentiation. On the contrary, depletion of LDH-A or LDH-B subunit suppressed both glycolytic and mitochondrial metabolism, resulting in reduced mature osteoclast formation via decreased osteoclast precursor fusion and down-regulation of the osteoclastogenic critical transcription factor NFATc1 and its target genes. Collectively, our findings suggest that RANKL-induced LDH activation stimulates glycolytic and mitochondrial respiratory metabolism, facilitating mature osteoclast formation via osteoclast precursor fusion and NFATc1 signaling.
Collapse
Affiliation(s)
- Heejin Ahn
- Department of Microbiology, Laboratory of Bone Metabolism and Control, Yeungnam University College of Medicine, Daegu, Korea
| | - Kyunghee Lee
- Department of Microbiology, Laboratory of Bone Metabolism and Control, Yeungnam University College of Medicine, Daegu, Korea
| | - Jin Man Kim
- Department of Microbiology, Laboratory of Bone Metabolism and Control, Yeungnam University College of Medicine, Daegu, Korea
| | - So Hyun Kwon
- Department of Microbiology, Laboratory of Bone Metabolism and Control, Yeungnam University College of Medicine, Daegu, Korea
| | - Seoung Hoon Lee
- Department of Oral Microbiology and Immunology, College of Dentistry, Wonkwang University, Iksan, Korea
| | - Soo Young Lee
- Department of Life Science and Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, Korea
| | - Daewon Jeong
- Department of Microbiology, Laboratory of Bone Metabolism and Control, Yeungnam University College of Medicine, Daegu, Korea
- * E-mail:
| |
Collapse
|
223
|
Kawamoto D, Ando-Suguimoto ES, Bueno-Silva B, DiRienzo JM, Mayer MPA. Alteration of Homeostasis in Pre-osteoclasts Induced by Aggregatibacter actinomycetemcomitans CDT. Front Cell Infect Microbiol 2016; 6:33. [PMID: 27064424 PMCID: PMC4815040 DOI: 10.3389/fcimb.2016.00033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 03/07/2016] [Indexed: 01/28/2023] Open
Abstract
The dysbiotic microbiota associated with aggressive periodontitis includes Aggregatibacter actinomycetemcomitans, the only oral species known to produce a cytolethal distending toxin (AaCDT). Give that CDT alters the cytokine profile in monocytic cells, we aimed to test the hypothesis that CDT plays a role in bone homeostasis by affecting the differentiation of precursor cells into osteoclasts. Recombinant AaCDT was added to murine bone marrow monocytes (BMMC) in the presence or absence of RANKL and the cell viability and cytokine profile of osteoclast precursor cells were determined. Multinucleated TRAP(+) cell numbers, and relative transcription of genes related to osteoclastogenesis were also evaluated. The addition of AaCDT did not lead to loss in cell viability but promoted an increase in the average number of TRAP(+) cells with 1-2 nuclei in the absence or presence of RANKL (Tukey, p < 0.05). This increase was also observed for TRAP(+) cells with ≥3nuclei, although this difference was not significant. Levels of TGF-β, TNF-α, and IL-6, in the supernatant fraction of cells, were higher when in AaCDT exposed cells, whereas levels of IL-1β and IL-10 were lower than controls under the same conditions. After interaction with AaCDT, transcription of the rank (encoding the receptor RANK), nfatc1 (transcription factor), and ctpK (encoding cathepsin K) genes was downregulated in pre-osteoclastic cells. The data indicated that despite the presence of RANKL and M-CSF, AaCDT may inhibit osteoclast differentiation by altering cytokine profiles and repressing transcription of genes involved in osteoclastogenesis. Therefore, the CDT may impair host defense mechanisms in periodontitis.
Collapse
Affiliation(s)
- Dione Kawamoto
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo São Paulo, Brazil
| | - Ellen S Ando-Suguimoto
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo São Paulo, Brazil
| | - Bruno Bueno-Silva
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo São Paulo, Brazil
| | - Joseph M DiRienzo
- Department of Microbiology, School of Dental Medicine, University of Pennsylvania PA, USA
| | - Marcia P A Mayer
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo São Paulo, Brazil
| |
Collapse
|
224
|
Nishioku T, Terasawa M, Baba M, Yamauchi A, Kataoka Y. CD147 promotes the formation of functional osteoclasts through NFATc1 signalling. Biochem Biophys Res Commun 2016; 473:620-4. [PMID: 27038546 DOI: 10.1016/j.bbrc.2016.03.147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 03/30/2016] [Indexed: 10/22/2022]
Abstract
CD147, a membrane glycoprotein of the immunoglobulin superfamily, is highly upregulated during dynamic cellular events including tissue remodelling. Elevated CD147 expression is present in the joint of rheumatoid arthritis patients. However, the role of CD147 in bone destruction remains unclear. To determine whether CD147 is involved in osteoclastogenesis, we studied its expression in mouse osteoclasts and its role in osteoclast differentiation and function. CD147 expression was markedly upregulated during osteoclast differentiation. To investigate the role of CD147 in receptor activator of nuclear factor-kappa B ligand (RANKL)-induced osteoclastogenesis and bone resorption activity, osteoclast precursor cells were transfected with CD147 siRNA. Decreased CD147 expression inhibited osteoclast formation and bone resorption, inhibited RANKL-induced nuclear translocation of the nuclear factor of activated T cells (NFAT) c1 and decreased the expression of the d2 isoform of vacuolar ATPase Vo domain and cathepsin K. Therefore, CD147 plays a critical role in the differentiation and function of osteoclasts by upregulating NFATc1 through the autoamplification of its expression in osteoclastogenesis.
Collapse
Affiliation(s)
- Tsuyoshi Nishioku
- Department of Clinical Pharmacology, Faculty of Pharmaceutical Sciences, Nagasaki International University, 2825-7 Huis Ten Bosch, Sasebo, Nagasaki 859-3298, Japan; Department of Pharmaceutical Care and Health Sciences, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan.
| | - Mariko Terasawa
- Department of Pharmaceutical Care and Health Sciences, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
| | - Misaki Baba
- Department of Pharmaceutical Care and Health Sciences, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
| | - Atsushi Yamauchi
- Department of Pharmaceutical Care and Health Sciences, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
| | - Yasufumi Kataoka
- Department of Pharmaceutical Care and Health Sciences, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
| |
Collapse
|
225
|
In Vitro Study of Cytophysiological Characteristics of Multinuclear Macrophages from Intact and BCG-Infected Mice. Bull Exp Biol Med 2016; 160:668-71. [PMID: 27021088 DOI: 10.1007/s10517-016-3245-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Indexed: 10/22/2022]
Abstract
Peritoneal macrophages were isolated from intact and BCG-infected BALB/c mice and explanted in vitro. Multinuclear macrophages formed in these cultures differed by the number of nuclei, expression of apoptosis inductors and regulators (TNF-α, p53 protein, caspase 3, and Bcl-2 protein), and cytophysiological characteristics (phagocytic activity, ROS generation, and antimycobacterial properties). Our results indicate that the formation of multinuclear macrophages is accompanied by induction of apoptosis (p53 signaling pathway) and appearance of multinuclear macrophage-derived cells characterized by high phagocytic and antimycobacterial activity.
Collapse
|
226
|
Wang WH, Chuang HY, Chen CH, Chen WK, Hwang JJ. Lupeol acetate ameliorates collagen-induced arthritis and osteoclastogenesis of mice through improvement of microenvironment. Biomed Pharmacother 2016; 79:231-40. [PMID: 27044833 DOI: 10.1016/j.biopha.2016.02.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 02/23/2016] [Accepted: 02/23/2016] [Indexed: 10/22/2022] Open
Abstract
Lupeol has been shown with anti-inflammation and antitumor capability, however, the poor bioavailability limiting its applications in living subjects. Lupeol acetate (LA), a derivative of lupeol, shows similar biological activities as lupeol but with better bioavailability. Here RAW 264.7 cells and bone marrow-derived macrophages (BMDMs) stimulated by lipopolysaccharide (LPS) were treated with 0-80μM of LA, and assayed for TNF-α, IL-1β, COX-2, MCP-1 using Western blotting. Moreover, osteoclatogenesis was examined with reverse transcription PCR (RT-PCR) and tartrate-resistant acid phosphatase (TRAP) staining. For in vivo study, collagen-induced arthritis (CIA)-bearing DBA/1J mice were randomly separated into three groups: vehicle, LA-treated (50mg/kg) and curcumin-treated (100mg/kg). Therapeutic efficacies were assayed by the clinical score, expression levels of serum cytokines including TNF-α and IL-1β, (18)F-fluorodeoxyglucose ((18)F-FDG) microPET/CT and histopathology. The results showed that LA could inhibit the activation, migration, and formation of osteoclastogenesis of macrophages in a dose-dependent manner. In RA-bearing mice, the expressions of inflammation-related cytokines were suppressed, and clinical symptoms and bone erosion were ameliorated by LA. The accumulation of (18)F-FDG in the joints of RA-bearing mice was also significantly decreased by LA. The results indicate that LA significantly improves the symptoms of RA by down-regulating expressions of inflammatory cytokines and osteoclastogenesis.
Collapse
Affiliation(s)
- Wei-Hsun Wang
- Dept of Orthopedic Surgery, Changhua Christian Hospital, Changhua, Taiwan
| | - Hui-Yen Chuang
- Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei, Taiwan
| | - Chien-Hui Chen
- Department of Radiation Oncology, Chang-Gung Memorial Hospital, Taoyen, Taiwan
| | - Wun-Ke Chen
- Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei, Taiwan; Department of Radiation Oncology, Hsinchu Branch, Mackay Memorial Hospital, Hsinchu, Taiwan
| | - Jeng-Jong Hwang
- Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei, Taiwan; Biophotonics & Molecular Imaging Research Center (BMIRC), National Yang-Ming University, Taipei, Taiwan.
| |
Collapse
|
227
|
Zhu X, Gao J, Ng PY, Qin A, Steer JH, Pavlos NJ, Zheng MH, Dong Y, Cheng TS. Alexidine Dihydrochloride Attenuates Osteoclast Formation and Bone Resorption and Protects Against LPS-Induced Osteolysis. J Bone Miner Res 2016; 31:560-72. [PMID: 26363136 DOI: 10.1002/jbmr.2710] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Revised: 09/02/2015] [Accepted: 09/10/2015] [Indexed: 12/30/2022]
Abstract
Aseptic loosening and periprosthetic infection leading to inflammatory osteolysis is a major complication associated with total joint arthroplasty (TJA). The liberation of bacterial products and/or implant-derived wear particles activates immune cells that produce pro-osteoclastogenic cytokines that enhance osteoclast recruitment and activity, leading to bone destruction and osteolysis. Therefore, agents that prevent the inflammatory response and/or attenuate excessive osteoclast (OC) formation and bone resorption offer therapeutic potential by prolonging the life of TJA implants. Alexidine dihydrochloride (AD) is a bisbiguanide compound commonly used as an oral disinfectant and in contact lens solutions. It possesses antimicrobial, anti-inflammatory and anticancer properties; however, its effects on OC biology are poorly described. Here, we demonstrate that AD inhibits OC formation and bone resorption in vitro and exert prophylatic protection against LPS-induced osteolysis in vivo. Biochemical analysis demonstrated that AD suppressed receptor activator of NF-κB ligand (RANKL)-induced activation of mitogen-activated protein kinases (ERK, p38, and JNK), leading to the downregulation of NFATc1. Furthermore, AD disrupted F-actin ring formation and attenuated the ability of mature OC to resorb bone. Collectively, our findings suggest that AD may be a promising prophylactic anti-osteoclastic/resorptive agent for the treatment of osteolytic diseases caused by excessive OC formation and function.
Collapse
Affiliation(s)
- Xiang Zhu
- Centre for Orthopaedic Research, School of Surgery, University of Western Australia, Crawley, Australia.,Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Junjie Gao
- Centre for Orthopaedic Research, School of Surgery, University of Western Australia, Crawley, Australia
| | - Pei Y Ng
- Centre for Orthopaedic Research, School of Surgery, University of Western Australia, Crawley, Australia
| | - An Qin
- Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedics, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - James H Steer
- Pharmacology Unit, School of Medicine and Pharmacology, University of Western Australia, Crawley, Australia
| | - Nathan J Pavlos
- Centre for Orthopaedic Research, School of Surgery, University of Western Australia, Crawley, Australia
| | - Ming H Zheng
- Centre for Orthopaedic Research, School of Surgery, University of Western Australia, Crawley, Australia
| | - Yang Dong
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Tak S Cheng
- Centre for Orthopaedic Research, School of Surgery, University of Western Australia, Crawley, Australia
| |
Collapse
|
228
|
The Alternative Faces of Macrophage Generate Osteoclasts. BIOMED RESEARCH INTERNATIONAL 2016; 2016:9089610. [PMID: 26977415 PMCID: PMC4761668 DOI: 10.1155/2016/9089610] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 01/14/2016] [Accepted: 01/18/2016] [Indexed: 01/08/2023]
Abstract
The understanding of how osteoclasts are generated and whether they can be altered by inflammatory stimuli is a topic of particular interest for osteoclastogenesis. It is known that the monocyte/macrophage lineage gives rise to osteoclasts (OCs) by the action of macrophage colony stimulating factor (M-CSF) and receptor activator of nuclear factor-kB ligand (RANKL), which induce cell differentiation through their receptors, c-fms and RANK, respectively. The multinucleated giant cells (MGCs) generated by the engagement of RANK/RANKL are typical OCs. Nevertheless, very few studies have addressed the question of which subset of macrophages generates OCs. Indeed, two main subsets of macrophages are postulated, the inflammatory or classically activated type (M1) and the anti-inflammatory or alternatively activated type (M2). It has been proposed that macrophages can be polarized in vitro towards a predominantly M1 or M2 phenotype with the addition of granulocyte macrophage- (GM-) CSF or M-CSF, respectively. Various inflammatory stimuli known to induce macrophage polarization, such as LPS or TNF-α, can alter the type of MGC obtained from RANKL-induced differentiation. This review aims to highlight the role of immune-related stimuli and factors in inducing macrophages towards the osteoclastogenesis choice.
Collapse
|
229
|
Kim JY, Ahn SJ, Baek JM, Yoon KH, Lee MS, Oh J. Ostericum koreanum Reduces LPS-Induced Bone Loss Through Inhibition of Osteoclastogenesis. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2016; 43:495-512. [PMID: 25967665 DOI: 10.1142/s0192415x15500317] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The roots of Ostericum koreanum (OK) Maximowicz have traditionally been used to produce an herbal medicine reported to possess anti-inflammatory, anti-oxidant, antimicrobial, and antitumor activities; however, its effect on bone metabolism has not yet been reported. The present study examined the effects of OK extract on lipopolysaccharide (LPS)-induced bone loss in mice by investigating bone structure and the levels of the receptor activator of nuclear factor kappa-B ligand (RANKL) and osteoprotegerin (OPG) in serum and bone marrow fluid (BMF). The effects of OK extract on osteoclastogenesis were also investigated in mouse bone marrow macrophages by examining the formation of tartrate-resistant acid phosphatase (TRAP)-positive cells, the actin ring, and bone resorption activity. OK reduced LPS-induced bone destruction in vivo via a decrease in the RANKL/OPG ratio. Furthermore, it suppressed the formation of TRAP-positive cells and the actin ring, and reduced the bone-resorbing activity of mature osteoclasts. OK also significantly down-regulated the expression of various osteoclast-specific genes. However, it did not affect osteoblast differentiation, or the expression of genes involved in this process. These results demonstrated that OK prevented LPS-induced bone loss by decreasing the RANKL/OPG ratio in serum and BMF, and inhibited osteoclast differentiation and function, suggesting that OK represents a potential therapeutic drug for the treatment of osteoclast-associated bone diseases.
Collapse
Affiliation(s)
- Ju-Young Kim
- Imaging Science-Based Lung and Bone Diseases Research Center, Iksan, Republic of Korea
| | | | | | | | | | | |
Collapse
|
230
|
Kim JH, Kim EY, Lee B, Min JH, Song DU, Lim JM, Eom JW, Yeom M, Jung HS, Sohn Y. The effects of Lycii Radicis Cortex on RANKL-induced osteoclast differentiation and activation in RAW 264.7 cells. Int J Mol Med 2016; 37:649-58. [PMID: 26848104 PMCID: PMC4771095 DOI: 10.3892/ijmm.2016.2477] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 01/25/2016] [Indexed: 01/16/2023] Open
Abstract
Post-menopausal osteoporosis is a serious age-related disease. After the menopause, estrogen deficiency is common, and excessive osteoclast activity causes osteoporosis. Osteoclasts are multinucleated cells generated from the differentiation of monocyte/macrophage precursor cells such as RAW 264.7 cells. The water extract of Lycii Radicis Cortex (LRC) is made from the dried root bark of Lycium chinense Mill. and is termed 'Jigolpi' in Korea. Its effects on osteoclastogenesis and post‑menopausal osteoporosis had not previously been tested. In the present study, the effect of LRC on receptor activator of nuclear factor-κB (NF-κB) ligand (RANKL)-induced osteoclast differentiation was demonstrated using a tartrate-resistant acid phosphatase (TRAP) assay and pit formation assay. Moreover, in order to analyze molecular mechanisms, we studied osteoclastogenesis-related markers such as nuclear factor of activated T-cells cytoplasmic 1 (NFATc1), c-Fos, receptor activator of NF-κB (RANK), TRAP, cathepsin K (CTK), matrix metallopeptidase-9 (MMP-9), calcitonin receptor (CTR) and carbonic anhydrase Ⅱ (CAII) using RT-qPCR and western blot analysis. Additionally, we also determined the effect of LRC on an ovariectomized (OVX) rat model. We noted that LRC inhibited RANKL-induced osteoclast differentiation via suppressing osteoclastogenesis-related markers. It also inhibited osteoporosis in the OVX rat model by decreasing loss of bone density and trabecular area. These results suggest that LRC exerts a positive effect on menopausal osteoporosis.
Collapse
Affiliation(s)
- Jae-Hyun Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Eun-Young Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Bina Lee
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Ju-Hee Min
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Dea-Uk Song
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Jeong-Min Lim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Ji Whan Eom
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Mijung Yeom
- Acupuncture and Meridian Science Research Center, College of Korean Medicine, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Hyuk-Sang Jung
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Youngjoo Sohn
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 130-701, Republic of Korea
| |
Collapse
|
231
|
Park SH, Kim JY, Cheon YH, Baek JM, Ahn SJ, Yoon KH, Lee MS, Oh J. Protocatechuic Acid Attenuates Osteoclastogenesis by Downregulating JNK/c-Fos/NFATc1 Signaling and Prevents Inflammatory Bone Loss in Mice. Phytother Res 2016; 30:604-12. [DOI: 10.1002/ptr.5565] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 12/09/2015] [Accepted: 12/10/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Sun-Hyang Park
- Department of Anatomy, School of Medicine; Wonkwang University; Iksan Jeonbuk 570-749 Republic of Korea
| | - Ju-Young Kim
- Imaging Science-based Lung and Bone Diseases Research Center; Wonkwang University; Iksan Jeonbuk 570-749 Republic of Korea
| | - Yoon-Hee Cheon
- Center for Metabolic Function Regulation; Wonkwang University; Iksan Jeonbuk 570-749 Republic of Korea
| | - Jong Min Baek
- Department of Anatomy, School of Medicine; Wonkwang University; Iksan Jeonbuk 570-749 Republic of Korea
| | - Sung-Jun Ahn
- Department of Anatomy, School of Medicine; Wonkwang University; Iksan Jeonbuk 570-749 Republic of Korea
| | - Kwon-Ha Yoon
- Imaging Science-based Lung and Bone Diseases Research Center; Wonkwang University; Iksan Jeonbuk 570-749 Republic of Korea
- Department of Radiology, School of Medicine; Wonkwang University; Iksan Jeonbuk 570-749 Republic of Korea
| | - Myeung Su Lee
- Imaging Science-based Lung and Bone Diseases Research Center; Wonkwang University; Iksan Jeonbuk 570-749 Republic of Korea
- Division of Rheumatology, Department of Internal Medicine; Wonkwang University; Iksan Jeonbuk 570-749 Republic of Korea
- Institute for Skeletal Disease; Wonkwang University; Iksan Jeonbuk 570-749 Republic of Korea
| | - Jaemin Oh
- Department of Anatomy, School of Medicine; Wonkwang University; Iksan Jeonbuk 570-749 Republic of Korea
- Imaging Science-based Lung and Bone Diseases Research Center; Wonkwang University; Iksan Jeonbuk 570-749 Republic of Korea
- Institute for Skeletal Disease; Wonkwang University; Iksan Jeonbuk 570-749 Republic of Korea
| |
Collapse
|
232
|
Cheon YH, Kim JY, Baek JM, Ahn SJ, So HS, Oh J. Niclosamide suppresses RANKL-induced osteoclastogenesis and prevents LPS-induced bone loss. Biochem Biophys Res Commun 2016; 470:343-349. [PMID: 26792726 DOI: 10.1016/j.bbrc.2016.01.048] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Accepted: 01/08/2016] [Indexed: 10/22/2022]
Abstract
Niclosamide (5-chloro-salicyl-(2-chloro-4-nitro) anilide) is an oral anthelmintic drug used for treating intestinal infection of most tapeworms. Recently, niclosamide was shown to have considerable efficacy against some tumor cell lines, including colorectal, prostate, and breast cancers, and acute myelogenous leukemia. Specifically, the drug was identified as a potent inhibitor of signal transducer and activator of transcription 3 (STAT3), which is associated with osteoclast differentiation and function. In this study, we assessed the effect of niclosamide on osteoclastogenesis in vitro and in vivo. Our in vitro study showed that receptor activator of nuclear factor-kappaB ligand (RANKL)-induced osteoclast differentiation was inhibited by niclosamide, due to inhibition of serine-threonine protein kinase (Akt) phosphorylation, inhibitor of nuclear factor-kappaB (IκB), and STAT3 serine(727). Niclosamide decreased the expression of the major transcription factors c-Fos and NFATc1, and thereafter abrogated the mRNA expression of osteoclast-specific genes, including TRAP, OSCAR, αv/β3 integrin (integrin αv, integrin β3), and cathepsin K (CtsK). In an in vivo model, niclosamide prevented lipopolysaccharide-induced bone loss by diminishing osteoclast activity. Taken together, our results show that niclosamide is effective in suppressing osteoclastogenesis and may be considered as a new and safe therapeutic candidate for the clinical treatment of osteoclast-related diseases such as osteoporosis.
Collapse
Affiliation(s)
- Yoon-Hee Cheon
- Center for Metabolic Function Regulation, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Ju-Young Kim
- Imaging Science-based Lung and Bone Diseases Research Center, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Jong Min Baek
- Department of Anatomy, School of Medicine, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Sung-Jun Ahn
- Department of Anatomy, School of Medicine, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Hong-Seob So
- Center for Metabolic Function Regulation, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea.
| | - Jaemin Oh
- Imaging Science-based Lung and Bone Diseases Research Center, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea; Department of Anatomy, School of Medicine, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea; Institute for Skeletal Disease, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea.
| |
Collapse
|
233
|
Yuan X, Cao J, Liu T, Li YP, Scannapieco F, He X, Oursler MJ, Zhang X, Vacher J, Li C, Olson D, Yang S. Regulators of G protein signaling 12 promotes osteoclastogenesis in bone remodeling and pathological bone loss. Cell Death Differ 2015; 22:2046-57. [PMID: 25909889 PMCID: PMC4816106 DOI: 10.1038/cdd.2015.45] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Revised: 03/03/2015] [Accepted: 03/10/2015] [Indexed: 02/06/2023] Open
Abstract
Regulators of G protein signaling (Rgs) have pivotal roles in controlling various cellular processes, such as cell differentiation. How Rgs proteins regulate osteoclast (OC) differentiation, function and bone homeostasis is poorly understood. It was previously demonstrated that Rgs12, the largest protein in the Rgs family, is predominantly expressed in OCs and regulates OC differentiation in vitro. To further understand the role and mechanism of Rgs12 in OC differentiation and bone diseases in vivo, we created OC-targeted Rgs12 knockout mice by using inducible Mx1-Cre and CD11b-Cre. Deletion of Rgs12 in hematopoietic cells or specifically in OC precursors resulted in increased bone mass with decreased OC numbers. Loss of Rgs12 impaired OC differentiation and function with impaired Ca(2+) oscillations and reduced nuclear factor of activated T cells (NFAT) 2 expression. The introduction of wild-type osteoblasts did not rescue the defective osteoclastogenesis. Ectopic expression of NFAT2 rescued defective OC differentiation in CD11b;Rgs12(fl/fl) cells and promoted normal OC differentiation. Moreover, deletion of Rgs12 significantly inhibited pathological osteoclastogenesis and bone destruction in Rgs12-deficient mice that were subjected to ovariectomy and lipodysaccharide for bone loss. Thus our findings demonstrate that Rgs12 is an important regulator in OC differentiation and function and identify Rgs12 as a potential therapeutic target for osteoporosis and inflammation-induced bone loss.
Collapse
Affiliation(s)
- X Yuan
- Department of Oral Biology, University at Buffalo, School of Dental Medicine, The State University of New York, Buffalo, NY 14214, USA
| | - J Cao
- USDA Grand Forks Human Nutrition Research Center, Grand Forks, ND 58202, USA
| | - T Liu
- Department of Oral Biology, University at Buffalo, School of Dental Medicine, The State University of New York, Buffalo, NY 14214, USA
| | - Y-P Li
- Department of Pathology, University of Alabama at Birmingham (UAB), Birmingham, AL 35294, USA
| | - F Scannapieco
- Department of Oral Biology, University at Buffalo, School of Dental Medicine, The State University of New York, Buffalo, NY 14214, USA
- Developmental Genomics Group, New York State Center of Excellence in Bioinformatics and Life Sciences, University at Buffalo, The State University of New York, Buffalo, NY 14203, USA
| | - X He
- Department of Stomatology, The Fourth Affiliated Hospital of China Medical University, China Medical University, Shenyang, Liaoning 110032, China
| | - M J Oursler
- Department of Medicine, Endocrine Research Unit, Mayo Clinic, Rochester, MN 55905, USA
| | - X Zhang
- Department of Orthopedics, Center for Musculoskeletal Research, University of Rochester Medical Center, School of Medicine and Dentistry, Rochester, NY 14642, USA
| | - J Vacher
- Department of Medicine, Division of Experimental Medicine, The Institut de Recherches Cliniques de Montréal, University of Montreal, Montreal, Quebec H2W 1R7, Canada
| | - C Li
- Department of Oral Biology, University at Buffalo, School of Dental Medicine, The State University of New York, Buffalo, NY 14214, USA
| | - D Olson
- Department of Oral Biology, University at Buffalo, School of Dental Medicine, The State University of New York, Buffalo, NY 14214, USA
| | - S Yang
- Department of Oral Biology, University at Buffalo, School of Dental Medicine, The State University of New York, Buffalo, NY 14214, USA
- Developmental Genomics Group, New York State Center of Excellence in Bioinformatics and Life Sciences, University at Buffalo, The State University of New York, Buffalo, NY 14203, USA
| |
Collapse
|
234
|
Takeuchi T, Shimakawa G, Tamura M, Yokosawa H, Arata Y. ISG15 regulates RANKL-induced osteoclastogenic differentiation of RAW264 cells. Biol Pharm Bull 2015; 38:482-6. [PMID: 25757932 DOI: 10.1248/bpb.b14-00410] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Interferon-stimulated gene 15 kDa (ISG15) is a protein upregulated by interferon-β that negatively regulates osteoclastogenesis. We investigated the role of ISG15 in receptor activator of nuclear factor-κB ligand (RANKL)-induced osteoclastogenic differentiation of murine RAW264 cells. RANKL stimulation induced ISG15 expression in RAW264 cells at both the mRNA and protein levels. Overexpression of ISG15 in RAW264 cells resulted in suppression of cell fusion in RANKL-stimulated cells as well as the reduced expression of ATP6v0d2, a gene essential for cell fusion in osteoclastogenic differentiation. These results suggest that ISG15 suppresses RANKL-induced osteoclastogenesis, at least in part, through inhibition of ATP6v0d2 expression.
Collapse
|
235
|
Andrographolide Inhibits Ovariectomy-Induced Bone Loss via the Suppression of RANKL Signaling Pathways. Int J Mol Sci 2015; 16:27470-81. [PMID: 26593901 PMCID: PMC4661897 DOI: 10.3390/ijms161126039] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Revised: 10/26/2015] [Accepted: 10/26/2015] [Indexed: 11/17/2022] Open
Abstract
Osteoporosis is a debilitating skeletal disorder with an increased risk of low-energy fracture, which commonly occurs among postmenopausal women. Andrographolide (AP), a natural product isolated from Andrographis paniculata, has been found to have anti-inflammatory, anti-cancer, anti-asthmatic, and neuro-protective properties. However, its therapeutic effect on osteoporosis is unknown. In this study, an ovariectomy (OVX) mouse model was used to evaluate the therapeutic effects of AP on post-menopausal osteoporosis by using micro-computed tomography (micro-CT). Bone marrow-derived osteoclast culture was used to examine the inhibitory effect of AP on osteoclastogenesis. Real time PCR was employed to examine the effect of AP on the expression of osteoclast marker genes. The activities of transcriptional factors NF-κB and NFATc1 were evaluated using a luciferase reporter assay, and the IκBα protein level was analyzed by Western blot. We found that OVX mice treated with AP have greater bone volume (BV/TV), trabecular thickness (Tb.Th), and trabecular number (Tb.N) compared to vehicle-treated OVX mice. AP inhibited RANKL-induced osteoclastogenesis, the expression of osteoclast marker genes including cathepsin K (Ctsk), TRACP (Acp5), and NFATc1, as well as the transcriptional activities of NF-κB and NFATc1. In conclusion, our results suggest that AP inhibits estrogen deficiency-induced bone loss in mice via the suppression of RANKL-induced osteoclastogensis and NF-κB and NFATc1 activities and, thus, might have therapeutic potential for osteoporosis.
Collapse
|
236
|
5-Lipoxygenase inhibitors suppress RANKL-induced osteoclast formation via NFATc1 expression. Bioorg Med Chem 2015; 23:7069-78. [DOI: 10.1016/j.bmc.2015.09.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Revised: 09/14/2015] [Accepted: 09/15/2015] [Indexed: 01/04/2023]
|
237
|
Baek JM, Min JY, Kim JY, Yoon KH, Choi MK, Oh J, Lee MS. The inhibitory effects of Citrus unshiu Markovich extracts on the receptor activator of nuclear factor-kappa-B ligand-mediated osteoclast differentiation and function. Food Sci Biotechnol 2015. [DOI: 10.1007/s10068-015-0240-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
|
238
|
Kanemoto S, Kobayashi Y, Yamashita T, Miyamoto T, Cui M, Asada R, Cui X, Hino K, Kaneko M, Takai T, Matsuhisa K, Takahashi N, Imaizumi K. Luman is involved in osteoclastogenesis through the regulation of DC-STAMP expression, stability and localization. J Cell Sci 2015; 128:4353-65. [PMID: 26503158 PMCID: PMC4712816 DOI: 10.1242/jcs.176057] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 10/19/2015] [Indexed: 01/12/2023] Open
Abstract
Luman (also known as CREB3) is a type-II transmembrane transcription factor belonging to the OASIS family that localizes to the endoplasmic reticulum (ER) membrane under normal conditions. In response to ER stress, OASIS-family members are subjected to regulated intramembrane proteolysis (RIP), following which the cleaved N-terminal fragments translocate to the nucleus. In this study, we show that treatment of bone marrow macrophages (BMMs) with cytokines – macrophage colony-stimulating factor (M-CSF) and RANKL (also known as TNFSF11) – causes a time-dependent increase in Luman expression, and that Luman undergoes RIP and becomes activated during osteoclast differentiation. Small hairpin (sh)RNA-mediated knockdown of Luman in BMMs prevented the formation of multinucleated osteoclasts, concomitant with the suppression of DC-STAMP, a protein that is essential for cell–cell fusion in osteoclastogenesis. The N-terminus of Luman facilitates promoter activity of DC-STAMP, resulting in upregulation of DC-STAMP expression. Furthermore, Luman interacts with DC-STAMP, and controls its stability and localization. These results suggest that Luman regulates the multinucleation of osteoclasts by promoting cell fusion of mononuclear osteoclasts through DC-STAMP induction and intracellular distribution during osteoclastogenesis. Highlighted Article: Luman, an ER-resident transcription factor, regulates the multinucleation of osteoclasts by promoting cell fusion of mononuclear osteoclasts through DC-STAMP induction and transportation during osteoclastogenesis.
Collapse
Affiliation(s)
- Soshi Kanemoto
- Department of Biochemistry, Institute of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Yasuhiro Kobayashi
- Institute for Oral Science, Matsumoto Dental University, 1780 Gobara, Hiro-oka, Shiojiri, Nagano 399-0781, Japan
| | - Teruhito Yamashita
- Institute for Oral Science, Matsumoto Dental University, 1780 Gobara, Hiro-oka, Shiojiri, Nagano 399-0781, Japan
| | - Takeshi Miyamoto
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Min Cui
- Department of Biochemistry, Institute of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Rie Asada
- Department of Biochemistry, Institute of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Xiang Cui
- Department of Biochemistry, Institute of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Kenta Hino
- Department of Biochemistry, Institute of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Masayuki Kaneko
- Department of Biochemistry, Institute of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Tomoko Takai
- Department of Biochemistry, Institute of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Koji Matsuhisa
- Department of Biochemistry, Institute of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Naoyuki Takahashi
- Institute for Oral Science, Matsumoto Dental University, 1780 Gobara, Hiro-oka, Shiojiri, Nagano 399-0781, Japan
| | - Kazunori Imaizumi
- Department of Biochemistry, Institute of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| |
Collapse
|
239
|
Kim JH, Kim K, Kim I, Seong S, Kim N. NRROS Negatively Regulates Osteoclast Differentiation by Inhibiting RANKL-Mediated NF-N:B and Reactive Oxygen Species Pathways. Mol Cells 2015; 38:904-10. [PMID: 26442864 PMCID: PMC4625072 DOI: 10.14348/molcells.2015.0177] [Citation(s) in RCA: 21] [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: 06/19/2015] [Revised: 08/13/2015] [Accepted: 08/13/2015] [Indexed: 12/26/2022] Open
Abstract
Negative regulator of reactive oxygen species (NRROS) is known to repress ROS generation in phagocytes. In this study, we examined the roles of NRROS in both osteoclasts and osteoblasts. Our results demonstrate that NRROS negatively regulates the differentiation of osteoclasts, but not osteoblasts. Further, overexpression of NRROS in osteoclast precursor cells attenuates RANKL-induced osteoclast differentiation. Conversely, osteoclast differentiation is enhanced upon siRNA-mediated knockdown of NRROS. Additionally, NRROS attenuates RANKL-induced NF-N:B activation, as well as degradation of the NOX1 and NOX2 proteins, which are required for ROS generation. Based on our observations, we present NRROS as a novel negative regulator of RANKL-induced osteoclastogenesis.
Collapse
Affiliation(s)
- Jung Ha Kim
- Department of Pharmacology, Medical Research Center for Gene Regulation, Chonnam National University Medical School, Gwangju 501-746,
Korea
| | - Kabsun Kim
- Department of Pharmacology, Medical Research Center for Gene Regulation, Chonnam National University Medical School, Gwangju 501-746,
Korea
| | - Inyoung Kim
- Department of Pharmacology, Medical Research Center for Gene Regulation, Chonnam National University Medical School, Gwangju 501-746,
Korea
| | - Semun Seong
- Department of Pharmacology, Medical Research Center for Gene Regulation, Chonnam National University Medical School, Gwangju 501-746,
Korea
| | - Nacksung Kim
- Department of Pharmacology, Medical Research Center for Gene Regulation, Chonnam National University Medical School, Gwangju 501-746,
Korea
| |
Collapse
|
240
|
Oh JH, Lee JY, Joung SH, Oh YT, Kim HS, Lee NK. Insulin enhances RANKL-induced osteoclastogenesis via ERK1/2 activation and induction of NFATc1 and Atp6v0d2. Cell Signal 2015; 27:2325-31. [PMID: 26343857 DOI: 10.1016/j.cellsig.2015.09.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 08/21/2015] [Accepted: 09/02/2015] [Indexed: 10/23/2022]
Abstract
Insulin is one of the main factors affecting bone and energy metabolism, however, the direct effect of insulin on osteoclast differentiation remains unclear. Thus, in order to help elucidate that puzzle, the authors investigated the roles and regulatory mechanisms of insulin on osteoclasts differentiation. Co-stimulation with insulin and RANKL significantly enhanced the number of larger (>100 μm) osteoclastic cells and of TRAP-positive multinucleated cells compared with treatment by RANKL alone. Conversely, the insulin receptor shRNA markedly decreased osteoclast differentiation induced by insulin and RANKL. Insulin treatment significantly activated ERK1/2 MAP kinase as well as markedly induced the expression of NFATc1, an osteoclast marker gene, and Atp6v0d2, an osteoclast fusion-related gene. The pretreatment of PD98059, an ERK1/2 inhibitor, or insulin receptor shRNA effectively suppressed osteoclast differentiation and, in addition, blocked the expression of NFATc1 and Atp6vod2 induced by insulin stimulation. These data reveal insights into the regulation of osteoclast differentiation and fusion through ERK1/2 activation and the induction of NFATc1 and Atp6v0d2 by insulin.
Collapse
Affiliation(s)
- Ju Hee Oh
- Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan-Si, Chungnam 336-745, Republic of Korea; Department of Medical Science, College of Medical Sciences, Soonchunhyang University, Asan-Si, Chungnam 336-745, Republic of Korea
| | - Jae Yoon Lee
- Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan-Si, Chungnam 336-745, Republic of Korea
| | - Seung Hee Joung
- Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan-Si, Chungnam 336-745, Republic of Korea
| | - Yoon Taek Oh
- Department of Medical Science, College of Medical Sciences, Soonchunhyang University, Asan-Si, Chungnam 336-745, Republic of Korea
| | - Hong Sung Kim
- Department of Biomedical Laboratory Science, Korea Nazarene University, Cheonan-Si, Chungnam 331-718, Republic of Korea
| | - Na Kyung Lee
- Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan-Si, Chungnam 336-745, Republic of Korea; Department of Medical Science, College of Medical Sciences, Soonchunhyang University, Asan-Si, Chungnam 336-745, Republic of Korea.
| |
Collapse
|
241
|
Moon SH, Latif M, Qasim M, Choi SW, Lee JY, Byun BJ, Saeed A, Kim SH. Synthesis, Characterization, and Biological Evaluation of Oxadiazole Derivatives Bearing 5-Phenyl-tetrazole as Osteoclast Differentiation Inhibitors. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Seong-Hee Moon
- Laboratory of Translational Therapeutics; Korea Research Institute of Chemical Technology; Daejeon 305-600 Republic of Korea
| | - Muhammad Latif
- Center for Catalytic Hydrocarbon Functionalization; Institute for Basic Science (IBS) and Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST); Daejeon 305-701 Korea
| | - Muhammad Qasim
- Department of Chemistry; Quaid-I-Azam University; Islamabad 45320 Pakistan
| | - Sik-Won Choi
- Laboratory of Translational Therapeutics; Korea Research Institute of Chemical Technology; Daejeon 305-600 Republic of Korea
| | - Joo Yun Lee
- Drug Discovery Platform Technology Group; Korea Research Institute of Chemical Technology; Daejeon 305-600 Republic of Korea
| | - Byung Jin Byun
- Drug Discovery Platform Technology Group; Korea Research Institute of Chemical Technology; Daejeon 305-600 Republic of Korea
| | - Aamer Saeed
- Department of Chemistry; Quaid-I-Azam University; Islamabad 45320 Pakistan
| | - Seong Hwan Kim
- Laboratory of Translational Therapeutics; Korea Research Institute of Chemical Technology; Daejeon 305-600 Republic of Korea
| |
Collapse
|
242
|
Tian J, Qi W, Zhang Y, Glogauer M, Wang Y, Lai Z, Jiang H. Bioaggregate Inhibits Osteoclast Differentiation, Fusion, and Bone Resorption In Vitro. J Endod 2015; 41:1500-6. [DOI: 10.1016/j.joen.2015.05.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Revised: 05/25/2015] [Accepted: 05/29/2015] [Indexed: 02/06/2023]
|
243
|
Choi SW, Yeon JT, Ryu BJ, Kim KJ, Moon SH, Lee H, Lee MS, Lee SY, Heo JC, Park SJ, Kim SH. Repositioning Potential of PAK4 to Osteoclastic Bone Resorption. J Bone Miner Res 2015; 30:1494-507. [PMID: 25640698 DOI: 10.1002/jbmr.2468] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 01/19/2015] [Accepted: 01/23/2015] [Indexed: 11/10/2022]
Abstract
Drug repositioning is a rational approach for expanding the use of existing drugs or candidate drugs to treat additional disorders. Here we investigated the possibility of using the anticancer p21-activated kinase 4 (PAK4)-targeted inhibitor PF-3758309 to treat osteoclast-mediated disorders. PAK4 was highly expressed in bone marrow cells and was phosphorylated during their differentiation into osteoclasts, and osteoclast differentiation was significantly inhibited by the dominant negative form of PAK4 and by PF-3758309. Specifically, PF-3758309 significantly inhibited the fusion of preosteoclasts, the podosome formation, and the migration of preosteoclasts. PF-3758309 also had in vivo antiresorptive activity in a lipopolysaccharide-induced bone erosion model and in vitro antiosteoclastogenic activity in the differentiation of human bone marrow-derived cells and peripheral blood mononuclear cells into osteoclasts. These data demonstrate the relevance of PAK4 in osteoclast differentiation and the potential of PAK4 inhibitors for treating osteoclast-related disorders.
Collapse
Affiliation(s)
- Sik-Won Choi
- Laboratory of Translational Therapeutics, Pharmacology Research Center, Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon, South Korea
| | - Jeong-Tae Yeon
- Department of Pharmacy, Sunchon National University, Suncheon, South Korea
| | - Byung Jun Ryu
- Laboratory of Translational Therapeutics, Pharmacology Research Center, Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon, South Korea
| | - Kwang-Jin Kim
- Department of Pharmacy, Sunchon National University, Suncheon, South Korea
| | - Seong-Hee Moon
- Laboratory of Translational Therapeutics, Pharmacology Research Center, Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon, South Korea
| | - Hyuk Lee
- Medicinal Chemistry Research Center, Korea Research Institute of Chemical Technology, Daejeon, South Korea
| | - Myeung Su Lee
- Division of Rheumatology, Department of Internal Medicine, Wonkwang University, Iksan, Jeonbuk, South Korea
| | - Sam Youn Lee
- Department of Cardiac and Thoracic Surgery, Wonkwang University, Iksan, Jeonbuk, South Korea
| | - Jin-Chul Heo
- Pharmacology Research Center, Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon, South Korea
| | - Sang-Joon Park
- Department of Histology, College of Veterinary Medicine, Kyungpook National University, Daegu, South Korea
| | - Seong Hwan Kim
- Laboratory of Translational Therapeutics, Pharmacology Research Center, Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon, South Korea
| |
Collapse
|
244
|
Moon SH, Choi SW, Kim SH. In vitro anti-osteoclastogenic activity of p38 inhibitor doramapimod via inhibiting migration of pre-osteoclasts and NFATc1 activity. J Pharmacol Sci 2015; 129:135-42. [PMID: 26232862 DOI: 10.1016/j.jphs.2015.06.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 06/18/2015] [Accepted: 06/24/2015] [Indexed: 12/13/2022] Open
Abstract
The mitogen activated protein kinase p38 plays a role in the receptor activator of NF-ĸB ligand (RANKL)-induced osteoclast differentiation. In this study, we investigated the effect of p38 inhibitor doramapimod on the osteoclast differentiation. Doramapimod significantly inhibited the osteoclastogenesis of bone marrow macrophages (BMMs) via attenuating the activation of p38 induced by M-CSF and RANKL. Importantly, doramapimod blocked the migration and fusion in pre-osteoclasts via the down-regulating NFATc1. The inhibitory effect of doramapimod on the migration/fusion of pre-osteoclasts via inhibiting NFATc1 activity were confirmed by measuring NFATc1 luciferase activity and evaluating the mRNA expression of NFATc1-responsive genes related to the osteoclastic migration/fusion. These results suggested anti-osteoclastogenic activity of doramapimod via inhibiting migration/fusion of pre-osteoclasts and NFATc1 activity.
Collapse
Affiliation(s)
- Seong-Hee Moon
- Laboratory of Translational Therapeutics, Pharmacology Research Center, Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea; Department of Biology, Chungnam National University, Daejeon 305-764, Republic of Korea
| | - Sik-Won Choi
- Laboratory of Translational Therapeutics, Pharmacology Research Center, Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea
| | - Seong Hwan Kim
- Laboratory of Translational Therapeutics, Pharmacology Research Center, Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea.
| |
Collapse
|
245
|
Yao J, Li J, Zhou L, Cheng J, Chim SM, Zhang G, Quinn JMW, Tickner J, Zhao J, Xu J. Protein kinase C inhibitor, GF109203X attenuates osteoclastogenesis, bone resorption and RANKL-induced NF-κB and NFAT activity. J Cell Physiol 2015; 230:1235-42. [PMID: 25363829 DOI: 10.1002/jcp.24858] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 10/28/2014] [Indexed: 12/14/2022]
Abstract
Osteolytic bone diseases are characterized by excessive osteoclast formation and activation. Protein kinase C (PKC)-dependent pathways regulate cell growth, differentiation and apoptosis in many cellular systems, and have been implicated in cancer development and osteoclast formation. A number of PKC inhibitors with anti-cancer properties have been developed, but whether they might also influence osteolysis (a common complication of bone invading cancers) is unclear. We studied the effects of the PKC inhibitor compound, GF109203X on osteoclast formation and activity, processes driven by receptor activator of NFκB ligand (RANKL). We found that GF109203X strongly and dose dependently suppresses osteoclastogenesis and osteoclast activity in RANKL-treated primary mouse bone marrow cells. Consistent with this GF109203X reduced expression of key osteoclastic genes, including cathepsin K, calcitonin receptor, tartrate resistant acid phosphatase (TRAP) and the proton pump subunit V-ATPase-d2 in RANKL-treated primary mouse bone marrow cells. Expression of these proteins is dependent upon RANKL-induced NF-κB and NFAT transcription factor actions; both were reduced in osteoclast progenitor populations by GF109203X treatment, notably NFATc1 levels. Furthermore, we showed that GF109203X inhibits RANKL-induced calcium oscillation. Together, this study shows GF109203X may block osteoclast functions, suggesting that pharmacological blockade of PKC-dependent pathways has therapeutic potential in osteolytic diseases.
Collapse
Affiliation(s)
- Jun Yao
- Department of Orthopaedic Surgery, Research Centre for Regenerative Medicine, The First Affiliated Hospital of Guangxi Medical University, Guangxi, China; School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia
| | | | | | | | | | | | | | | | | | | |
Collapse
|
246
|
Kim JY, Cheon YH, Yoon KH, Lee MS, Oh J. Parthenolide inhibits osteoclast differentiation and bone resorbing activity by down-regulation of NFATc1 induction and c-Fos stability, during RANKL-mediated osteoclastogenesis. BMB Rep 2015; 47:451-6. [PMID: 24314143 PMCID: PMC4206717 DOI: 10.5483/bmbrep.2014.47.8.206] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Indexed: 11/20/2022] Open
Abstract
Parthenolide, a natural product derived from Feverfew, prevents septic shock and inflammation. We aimed to identify the effects of parthenolide on the RANKL (receptor activator of NF-κB ligand)-induced differentiation and bone resorbing activity of osteoclasts. In this study, parthenolide dose-dependently inhibited RANKL-mediated osteoclast differentiation in BMMs, without any evidence of cytotoxicity and the phosphorylation of p38, ERK, and IκB, as well as IκB degradation by RANKL treatment. Parthenolide suppressed the expression of NFATc1, OSCAR, TRAP, DC-STAMP, and cathepsin K in RANKL-treated BMMs. Furthermore, parthenolide down-regulated the stability of c-Fos protein, but could not suppress the expression of c-Fos. Overexpression of NFATc1 and c-Fos in BMMs reversed the inhibitory effect of parthenolide on RANKL-mediated osteoclast differentiation. Parthenolide also inhibited the bone resorbing activity of mature osteoclasts. Parthenolide inhibits the differentiation and bone-resolving activity of osteoclast by RANKL, suggesting its potential therapeutic value for bone destructive disorders associated with osteoclast-mediated bone resorption. [BMB Reports 2014; 47(8): 451-456]
Collapse
Affiliation(s)
- Ju-Young Kim
- Imaging Science-based Lung and Bone Diseases Research Center, Wonkwang University School of Medicine, Iksan 570-749, Korea
| | - Yoon-Hee Cheon
- Department of Anatomy; BK21plus Program and Department of Smart Life-care Convergence Graduate School, Wonkwang University School of Medicine, Iksan 570-749, Korea
| | - Kwon-Ha Yoon
- Imaging Science-based Lung and Bone Diseases Research Center; Department of Radiology, Wonkwang University School of Medicine, Iksan 570-749, Korea
| | - Myeung Su Lee
- Imaging Science-based Lung and Bone Diseases Research Center; Institute for Skeletal Disease; Department of Rheumatology, Wonkwang University School of Medicine, Iksan 570-749, Korea
| | - Jaemin Oh
- Imaging Science-based Lung and Bone Diseases Research Center; Department of Anatomy; BK21plus Program and Department of Smart Life-care Convergence Graduate School; Institute for Skeletal Disease, Wonkwang University School of Medicine, Iksan 570-749, Korea
| |
Collapse
|
247
|
Sexual Dimorphism in MAPK-Activated Protein Kinase-2 (MK2) Regulation of RANKL-Induced Osteoclastogenesis in Osteoclast Progenitor Subpopulations. PLoS One 2015; 10:e0125387. [PMID: 25946081 PMCID: PMC4422514 DOI: 10.1371/journal.pone.0125387] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Accepted: 03/24/2015] [Indexed: 01/25/2023] Open
Abstract
Osteoclasts (OCs) are bone-resorptive cells critical for maintaining skeletal integrity through coupled bone turnover. OC differentiation and activation requires receptor activator of NF-kB ligand (RANKL) signaling through the p38 MAPK pathway. However the role of the p38 MAPK substrate, MAPK-activated protein kinase 2 (MK2), is not clearly delineated. Within the bone marrow exists a specific subpopulation of defined osteoclast progenitor cells (dOCPs) with surface expression of B220-Gr1-CD11blo/-CD115+ (dOCPlo/-). In this study, we isolated dOCPs from male and female mice to determine sex-specific effects of MK2 signaling in osteoclastogenesis (OCgen). Male Mk2-/- mice display an increase in the dOCPlo cell population when compared to Mk2+/+ mice, while female Mk2-/- and Mk2+/+ mice exhibit no difference. Defined OCPs from male and female Mk2+/+ and Mk2-/- bone marrow were treated with macrophage colony stimulation factor (M-CSF) and RANKL cytokines to promote OCgen. RANKL treatment of dOCPlo cells stimulated p38 and MK2 phosphorylation. Tartrate-resistant acid phosphatase (TRAP) assays were used to quantify OC number, size, and TRAP enzyme activity post-RANKL stimulation. MK2 signaling was critical for male dOCPlo OCgen, yet MK2 signaling regulated OCgen from female dOCP- and CD11bhi subpopulations as well. The functional gene, Ctsk, was attenuated in both male and female Mk2-/- dOCPlo-derived OCs. Conversely, MK2 signaling was only critical for gene expression of pre-OC fusion genes, Oc-stamp andTm7sf4, in male OCgen. Therefore, these data suggest there is a sexual dimorphism in MK2 signaling of OCP subpopulations.
Collapse
|
248
|
Kadlub N, Vazquez MP, Galmiche L, L'Herminé AC, Dainese L, Ulinski T, Fauroux B, Pavlov I, Badoual C, Marlin S, Deckert M, Leboulanger N, Berdal A, Descroix V, Picard A, Coudert AE. The calcineurin inhibitor tacrolimus as a new therapy in severe cherubism. J Bone Miner Res 2015; 30:878-85. [PMID: 25491283 DOI: 10.1002/jbmr.2431] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Cherubism is a rare genetic disorder characterized by extensive growth of a bilateral granuloma of the jaws, resulting in facial disfigurement. Cherubism is caused by gain-of-function mutations in the SH3BP2 gene, leading to overactivation of nuclear factor of activated T cells, cytoplasmic 1 (NFATc1)-dependent osteoclastogenesis. Recent findings in human and mouse cherubism have suggested that calcineurin inhibitors might be drug candidates in cherubism medical treatment. A 4-year-old boy with aggressive cherubism was treated with the calcineurin inhibitor tacrolimus for 1 year, and clinical, radiological, and molecular data were obtained. Immunohistologic analysis was performed to compare preoperative and postoperative NFATc1 staining and tartrate resistant acid phosphatase (TRAP) activity. Real-time PCR was performed to analyze the relative expression levels of OPG and RANKL. After tacrolimus therapy, the patient showed significant clinical improvement, including stabilization of jaw size and intraosseous osteogenesis. Immunohistologic analyses on granuloma showed that tacrolimus caused a significant reduction in the number of TRAP-positive osteoclasts and NFATc1 nuclear staining in multinucleated giant cells. Molecular analysis showed that tacrolimus treatment also resulted in increased OPG expression. We present the first case of effective medical therapy in cherubism. Tacrolimus enhanced bone formation by stimulating osteogenesis and inhibiting osteoclastogenesis.
Collapse
Affiliation(s)
- Natacha Kadlub
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMRS1138, Team Molecular Oral Pathophysiology, Cordeliers Research Center, University Paris-Diderot, University Paris-Descartes, and University Pierre and Marie Curie, Paris, France; Service de Chirurgie Maxillo-Faciale, Hôpital Necker Enfants Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France; Unités de Formation et de Recherche (UFR) de Médecine Paris Descartes, Université Paris V, Paris, France; Centre de Références des Malformations de la Face et de la Cavité Buccale, Paris, France; Laboratoire de Physiopathologie Orale et Moléculaire, INSERM, UMRS 872, Equipe 5, Centre de Recherche des Cordeliers, Paris, France
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
249
|
Yeon JT, Choi SW, Ryu BJ, Kim KJ, Lee JY, Byun BJ, Son YJ, Kim SH. Praeruptorin A inhibits in vitro migration of preosteoclasts and in vivo bone erosion, possibly due to its potential to target calmodulin. JOURNAL OF NATURAL PRODUCTS 2015; 78:776-782. [PMID: 25734761 DOI: 10.1021/np501017z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Excessive activity and/or increased number of osteoclasts lead to bone resorption-related disorders. Here, we investigated the potential of praeruptorin A to inhibit migration/fusion of preosteoclasts in vitro and bone erosion in vivo. Praeruptorin A inhibited the RANKL-induced migration/fusion of preosteoclasts accompanied by the nuclear translocation of NFATc1, a master regulator of osteoclast differentiation. Antimigration/fusion activity of praeruptorin A was also confirmed by evaluating the mRNA expression of fusion-mediating molecules. In silico binding studies and several biochemical assays further revealed the potential of praeruptorin A to bind with Ca(2+)/calmodulin and inhibit its downstream signaling pathways, including the Ca(2+)/calmodulin-CaMKIV-CREB and Ca(2+)/calmodulin-calcineurin signaling axis responsible for controlling NFATc1. In vivo application of praeruptorin A significantly reduced lipopolysaccharide-induced bone erosion, indicating its possible use to treat bone resorption-related disorders. In conclusion, praeruptorin A has the potential to inhibit migration/fusion of preosteoclasts in vitro and bone erosion in vivo by targeting calmodulin and inhibiting the Ca(2+)/calmodulin-CaMKIV-CREB-NFATc1 and/or Ca(2+)/calmodulin-calcineurin-NFATc1 signaling axis.
Collapse
Affiliation(s)
- Jeong-Tae Yeon
- †Research Institute of Basic Science and §Department of Pharmacy, Sunchon National University, Suncheon 540-742, Republic of Korea
- ‡Laboratory of Translational Therapeutics, Pharmacology Research Center, Drug Discovery Division, ⊥Korea Chemical Bank, and ∥Drug Discovery Platform Technology Group, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea
| | - Sik-Won Choi
- †Research Institute of Basic Science and §Department of Pharmacy, Sunchon National University, Suncheon 540-742, Republic of Korea
- ‡Laboratory of Translational Therapeutics, Pharmacology Research Center, Drug Discovery Division, ⊥Korea Chemical Bank, and ∥Drug Discovery Platform Technology Group, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea
| | - Byung Jun Ryu
- †Research Institute of Basic Science and §Department of Pharmacy, Sunchon National University, Suncheon 540-742, Republic of Korea
- ‡Laboratory of Translational Therapeutics, Pharmacology Research Center, Drug Discovery Division, ⊥Korea Chemical Bank, and ∥Drug Discovery Platform Technology Group, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea
| | - Kwang-Jin Kim
- †Research Institute of Basic Science and §Department of Pharmacy, Sunchon National University, Suncheon 540-742, Republic of Korea
- ‡Laboratory of Translational Therapeutics, Pharmacology Research Center, Drug Discovery Division, ⊥Korea Chemical Bank, and ∥Drug Discovery Platform Technology Group, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea
| | - Joo Yun Lee
- †Research Institute of Basic Science and §Department of Pharmacy, Sunchon National University, Suncheon 540-742, Republic of Korea
- ‡Laboratory of Translational Therapeutics, Pharmacology Research Center, Drug Discovery Division, ⊥Korea Chemical Bank, and ∥Drug Discovery Platform Technology Group, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea
| | - Byung Jin Byun
- †Research Institute of Basic Science and §Department of Pharmacy, Sunchon National University, Suncheon 540-742, Republic of Korea
- ‡Laboratory of Translational Therapeutics, Pharmacology Research Center, Drug Discovery Division, ⊥Korea Chemical Bank, and ∥Drug Discovery Platform Technology Group, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea
| | - Young-Jin Son
- †Research Institute of Basic Science and §Department of Pharmacy, Sunchon National University, Suncheon 540-742, Republic of Korea
- ‡Laboratory of Translational Therapeutics, Pharmacology Research Center, Drug Discovery Division, ⊥Korea Chemical Bank, and ∥Drug Discovery Platform Technology Group, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea
| | - Seong Hwan Kim
- †Research Institute of Basic Science and §Department of Pharmacy, Sunchon National University, Suncheon 540-742, Republic of Korea
- ‡Laboratory of Translational Therapeutics, Pharmacology Research Center, Drug Discovery Division, ⊥Korea Chemical Bank, and ∥Drug Discovery Platform Technology Group, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea
| |
Collapse
|
250
|
Kasonga AE, Deepak V, Kruger MC, Coetzee M. Arachidonic acid and docosahexaenoic acid suppress osteoclast formation and activity in human CD14+ monocytes, in vitro. PLoS One 2015; 10:e0125145. [PMID: 25867515 PMCID: PMC4395026 DOI: 10.1371/journal.pone.0125145] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 03/14/2015] [Indexed: 01/02/2023] Open
Abstract
An unbalanced diet can have adverse effects on health. Long chain polyunsaturated fatty acids (LCPUFAs) have been the focus of research owing to their necessity of inclusion in a healthy diet. However, the effects of LCPUFAs on human osteoclast formation and function have not been explored before. A human CD14+ monocyte differentiation model was used to elucidate the effects of an ω-3 LCPUFA, docosahexaenoic acid (DHA), and an ω-6 LCPUFA, arachidonic acid (AA), on osteoclast formation and activity. CD14+ monocytes were isolated from peripheral blood of healthy donors and stimulated with macrophage colony stimulating factor and receptor activator of nuclear factor kappa-B ligand to generate osteoclasts. Data from this study revealed that both the LCPUFAs decreased osteoclast formation potential of CD14+ monocytes in a dose-dependent manner when treated at an early stage of differentiation. Moreover, when exposed at a late stage of osteoclast differentiation AA and DHA impaired the bone resorptive potential of mature osteoclasts without affecting osteoclast numbers. AA and DHA abrogated vitronectin receptor expression in differentiating as well as mature osteoclasts. In contrast, the degree of inhibition for calcitonin receptor expression varied between the LCPUFAs with only AA causing inhibition during osteoclast differentiation. Furthermore, AA and DHA down regulated the expression of key osteoclast-specific genes in differentiating as well as mature osteoclasts. This study demonstrates for the first time that LCPUFAs can modulate osteoclast formation and function in a human primary osteoclast cell line.
Collapse
Affiliation(s)
- Abe E. Kasonga
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Vishwa Deepak
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Marlena C. Kruger
- School of Food and Nutrition, Massey Institute of Food Science and Technology, Massey University, Palmerston North, New Zealand
- Department of Human Nutrition and Associate of the Institute for Food, Nutrition and Well-being, University of Pretoria, Pretoria, South Africa
| | - Magdalena Coetzee
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
- * E-mail:
| |
Collapse
|