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Sun S, Yan T, Yang N, Wu J, Liu Z. Regulation of osteoclast differentiation and inflammatory signaling by TCF8 in periodontitis. Oral Dis 2024; 30:2580-2591. [PMID: 37246926 DOI: 10.1111/odi.14623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 04/19/2023] [Accepted: 05/17/2023] [Indexed: 05/30/2023]
Abstract
OBJECTIVES The aim of this study was to explore the potential role of zinc-finger homeodomain transcription factor (TCF8) in osteoclastogenesis and inflammation during periodontitis. MATERIALS AND METHODS Rats with periodontitis were induced via Porphyromonas gingivalis-lipopolysaccharide (Pg-LPS) injection. The recombinant lentivirus delivering short hairpin RNA (shRNA) against TCF8 was used to downregulate TCF8 in vivo. Alveolar bone loss in rats was determined by micro-computed tomography (Micro-CT). Typical pathological changes, periodontal tissue inflammation, and osteoclastogenesis were evaluated via histological analyses. The RAW264.7-derived osteoclasts were induced by RANKL stimulation. TCF8 downregulation in vitro was achieved by lentivirus infection. The osteoclast differentiation and inflammatory signaling in RANKL-induced cells were measured via immunofluorescence methods and molecular biology approaches. RESULTS Porphyromonas gingivalis-lipopolysaccharide induced rats exhibited overexpressed TCF8 in their periodontal tissues, while TCF8 knockdown attenuated the bone loss, tissue inflammation, and osteoclastogenesis in LPS-induced rats. Besides, TCF8 silencing inhibited RANKL-induced osteoclast differentiation in RAW264.7 cells, as evidenced by the reduced numbers of TRAP-positive osteoclasts, less formation of F-actin rings, and downregulated expressions of osteoclast-specific markers. It also exerted an inhibitory effect on the NF-κB signaling in RANKL-induced cells via blocking NF-κB p65 phosphorylation and nuclear translocation. CONCLUSIONS TCF8 silencing inhibited alveolar bone loss, osteoclast differentiation, and inflammation in periodontitis.
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Affiliation(s)
- Shiqun Sun
- Department of Prosthodontics, Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
| | - Tongtong Yan
- Department of Prosthodontics, Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
| | - Nan Yang
- Department of Prosthodontics, Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
| | - Jian Wu
- Department of Prosthodontics, Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
| | - Zhihui Liu
- Department of Prosthodontics, Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
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2
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Zhao Y, Ning J, Teng H, Deng Y, Sheldon M, Shi L, Martinez C, Zhang J, Tian A, Sun Y, Nakagawa S, Yao F, Wang H, Ma L. Long noncoding RNA Malat1 protects against osteoporosis and bone metastasis. Nat Commun 2024; 15:2384. [PMID: 38493144 PMCID: PMC10944492 DOI: 10.1038/s41467-024-46602-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 03/04/2024] [Indexed: 03/18/2024] Open
Abstract
MALAT1, one of the few highly conserved nuclear long noncoding RNAs (lncRNAs), is abundantly expressed in normal tissues. Previously, targeted inactivation and genetic rescue experiments identified MALAT1 as a suppressor of breast cancer lung metastasis. On the other hand, Malat1-knockout mice are viable and develop normally. On a quest to discover the fundamental roles of MALAT1 in physiological and pathological processes, we find that this lncRNA is downregulated during osteoclastogenesis in humans and mice. Remarkably, Malat1 deficiency in mice promotes osteoporosis and bone metastasis of melanoma and mammary tumor cells, which can be rescued by genetic add-back of Malat1. Mechanistically, Malat1 binds to Tead3 protein, a macrophage-osteoclast-specific Tead family member, blocking Tead3 from binding and activating Nfatc1, a master regulator of osteoclastogenesis, which results in the inhibition of Nfatc1-mediated gene transcription and osteoclast differentiation. Notably, single-cell transcriptome analysis of clinical bone samples reveals that reduced MALAT1 expression in pre-osteoclasts and osteoclasts is associated with osteoporosis and metastatic bone lesions. Altogether, these findings identify Malat1 as a lncRNA that protects against osteoporosis and bone metastasis.
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Affiliation(s)
- Yang Zhao
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Jingyuan Ning
- Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100010, China
| | - Hongqi Teng
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Yalan Deng
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Marisela Sheldon
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Lei Shi
- Department of Endocrine Neoplasia and Hormonal Disorders, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Consuelo Martinez
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Jie Zhang
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Annie Tian
- Department of Kinesiology, Rice University, Houston, TX, 77005, USA
| | - Yutong Sun
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Shinichi Nakagawa
- RNA Biology Laboratory, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Fan Yao
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
- Hubei Hongshan Laboratory, College of Biomedicine and Health, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Hai Wang
- Department of Molecular and Cellular Biology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA
| | - Li Ma
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA.
- The University of Texas MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, Houston, TX, 77030, USA.
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3
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Buck HV, Stains JP. Osteocyte-mediated mechanical response controls osteoblast differentiation and function. Front Physiol 2024; 15:1364694. [PMID: 38529481 PMCID: PMC10961341 DOI: 10.3389/fphys.2024.1364694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 02/29/2024] [Indexed: 03/27/2024] Open
Abstract
Low bone mass is a pervasive global health concern, with implications for osteoporosis, frailty, disability, and mortality. Lifestyle factors, including sedentary habits, metabolic dysfunction, and an aging population, contribute to the escalating prevalence of osteopenia and osteoporosis. The application of mechanical load to bone through physical activity and exercise prevents bone loss, while sufficient mechanical load stimulates new bone mass acquisition. Osteocytes, cells embedded within the bone, receive mechanical signals and translate these mechanical cues into biological signals, termed mechano-transduction. Mechano-transduction signals regulate other bone resident cells, such as osteoblasts and osteoclasts, to orchestrate changes in bone mass. This review explores the mechanisms through which osteocyte-mediated response to mechanical loading regulates osteoblast differentiation and bone formation. An overview of bone cell biology and the impact of mechanical load will be provided, with emphasis on the mechanical cues, mechano-transduction pathways, and factors that direct progenitor cells toward the osteoblast lineage. While there are a wide range of clinically available treatments for osteoporosis, the majority act through manipulation of the osteoclast and may have significant disadvantages. Despite the central role of osteoblasts to the deposition of new bone, few therapies directly target osteoblasts for the preservation of bone mass. Improved understanding of the mechanisms leading to osteoblastogenesis may reveal novel targets for translational investigation.
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Affiliation(s)
| | - Joseph Paul Stains
- School of Medicine, University of Maryland, Baltimore, MD, United States
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4
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Srihirun S, Mathithiphark S, Phruksaniyom C, Kongphanich P, Inthanop W, Sriwantana T, Tancharoen S, Sibmooh N, Vivithanaporn P. Hydroxychavicol Inhibits In Vitro Osteoclastogenesis via the Suppression of NF-κB Signaling Pathway. Biomol Ther (Seoul) 2024; 32:205-213. [PMID: 38298094 PMCID: PMC10902706 DOI: 10.4062/biomolther.2023.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 07/15/2023] [Accepted: 07/31/2023] [Indexed: 02/02/2024] Open
Abstract
Hydroxychavicol, a primary active phenolic compound of betel leaves, previously inhibited bone loss in vivo by stimulating osteogenesis. However, the effect of hydroxychavicol on bone remodeling induced by osteoclasts is unknown. In this study, the anti-osteoclastogenic effects of hydroxychavicol and its mechanism were investigated in receptor activator of nuclear factor kappa-B ligand (RANKL)-induced osteoclasts. Hydroxychavicol reduced the number of tartrate resistance acid phosphatase (TRAP)-positive multinucleated, F-actin ring formation and bone-resorbing activity of osteoclasts differentiated from RAW264.7 cells in a concentration-dependent manner. Furthermore, hydroxychavicol decreased the expression of osteoclast-specific genes, including cathepsin K, MMP-9, and dendritic cell-specific transmembrane protein (DC-STAMP). For mechanistic studies, hydroxychavicol suppressed RANKL-induced expression of major transcription factors, including the nuclear factor of activated T-cells 1 (NFATc1), c-Fos, and c-Jun. At the early stage of osteoclast differentiation, hydroxychavicol blocked the phosphorylation of NF-κB subunits (p65 and Iκβα). This blockade led to the decrease of nuclear translocation of p65 induced by RANKL. In addition, the anti-osteoclastogenic effect of hydroxychavicol was confirmed by the inhibition of TRAP-positive multinucleated differentiation from human peripheral mononuclear cells (PBMCs). In conclusion, hydroxychavicol inhibits osteoclastogenesis by abrogating RANKL-induced NFATc1 expression by suppressing the NF-κB signaling pathway in vitro.
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Affiliation(s)
- Sirada Srihirun
- Department of Pharmacology, Faculty of Dentistry, Mahidol University, Bangkok 10400, Thailand
| | | | - Chareerut Phruksaniyom
- Department of Pharmacology, Faculty of Dentistry, Mahidol University, Bangkok 10400, Thailand
| | - Pitchanun Kongphanich
- Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand
| | - Wisutthaporn Inthanop
- Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand
| | - Thanaporn Sriwantana
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakan 10540, Thailand
| | - Salunya Tancharoen
- Department of Pharmacology, Faculty of Dentistry, Mahidol University, Bangkok 10400, Thailand
| | - Nathawut Sibmooh
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakan 10540, Thailand
| | - Pornpun Vivithanaporn
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakan 10540, Thailand
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5
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Hou J, Liu J, Huang Z, Wang Y, Yao H, Hu Z, Shi C, Xu J, Wang Q. Structure and function of the membrane microdomains in osteoclasts. Bone Res 2023; 11:61. [PMID: 37989999 PMCID: PMC10663511 DOI: 10.1038/s41413-023-00294-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 09/07/2023] [Accepted: 09/18/2023] [Indexed: 11/23/2023] Open
Abstract
The cell membrane structure is closely related to the occurrence and progression of many metabolic bone diseases observed in the clinic and is an important target to the development of therapeutic strategies for these diseases. Strong experimental evidence supports the existence of membrane microdomains in osteoclasts (OCs). However, the potential membrane microdomains and the crucial mechanisms underlying their roles in OCs have not been fully characterized. Membrane microdomain components, such as scaffolding proteins and the actin cytoskeleton, as well as the roles of individual membrane proteins, need to be elucidated. In this review, we discuss the compositions and critical functions of membrane microdomains that determine the biological behavior of OCs through the three main stages of the OC life cycle.
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Affiliation(s)
- Jialong Hou
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Orthopaedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jian Liu
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Orthopaedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zhixian Huang
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Orthopaedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yining Wang
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Orthopaedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Hanbing Yao
- Department of Orthopaedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zhenxin Hu
- Department of Spine Surgery, Peking University Fourth School of Clinical Medicine, Beijing, China
| | - Chengge Shi
- Department of Orthopaedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jiake Xu
- School of Biomedical Sciences, The University of Western Australia, Perth, WA, Australia.
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
| | - Qingqing Wang
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.
- Department of Orthopaedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
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6
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Zheng T, Lin Z, Jiang G, Chen H, Yang Y, Zeng X. Pogostone attenuates osteolysis in breast cancer by inhibiting the NF-kB and JNK signaling pathways of osteoclast. Life Sci 2023; 328:121611. [PMID: 37068706 DOI: 10.1016/j.lfs.2023.121611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 03/01/2023] [Accepted: 03/17/2023] [Indexed: 04/19/2023]
Abstract
AIMS Breast cancer is the most prevalent cancer in females, and approximately 70 % of all patients have evidence of metastatic bone disease, which substantially affects the quality of life and survival rate of breast cancer patients. Osteoporosis has become a global public health problem, and the abnormal activation of osteoclasts is the key to the progression of osteoporosis and the key to both diseases lies in the osteoclasts. Effective drug treatments are lacking and there is an urgent need to explore new drugs. MATERIALS AND METHODS We observed the effects of pogostone (PO) on osteoclast differentiation, bone resorption function and other indicators, and F-actin ring formation by using Trap staining, SEM and immunofluorescence, and further explored the targets of pogostone in regulating osteoclast differentiation and function using qPCR and Western Blot. In addition, we used CCK 8, Transwell, and flow cytometry to study the effects of pogostone on proliferation, invasion, migration, and apoptosis of MDA-MB-231 cells. Animal models were also constructed for in vivo validation. KEY FINDINGS Pogostone inhibits osteoclast differentiation, bone resorption, formation of F-actin ring, and the expression of specific genes by attenuated NF-kB degradation and phosphorylation of JNK. In vitro, pogostone suppresses invasion of breast cancer cells, migration, and promotes their apoptosis. In mouse models, pogostone attenuated osteoclast formation and bone resorption, blocked breast cancer cells migration, and supprsed breast cancer-induced osteolysis and ovariectomized (OVX)-mediated osteoporosis. SIGNIFICANCE These biological functions of pogostone make it a potential drug for treatment of breast cancer-associated bone metastasis in the future.
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Affiliation(s)
- Tao Zheng
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Zhengjun Lin
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Guangyao Jiang
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Hongxuan Chen
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yaocheng Yang
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China.
| | - Xiangbin Zeng
- Department of Orthopedics, The Second People's Hospital of Huaihua City, Huaihua, China.
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7
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Shi S, Gu H, Xu J, Sun W, Liu C, Zhu T, Wang J, Gao F, Zhang J, Ou Q, Jin C, Xu J, Chen H, Li J, Xu G, Tian H, Lu L. Glia maturation factor beta deficiency protects against diabetic osteoporosis by suppressing osteoclast hyperactivity. Exp Mol Med 2023:10.1038/s12276-023-00980-8. [PMID: 37121966 DOI: 10.1038/s12276-023-00980-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 01/05/2023] [Accepted: 01/27/2023] [Indexed: 05/02/2023] Open
Abstract
Excessive osteoclast activation, which depends on dramatic changes in actin dynamics, causes osteoporosis (OP). The molecular mechanism of osteoclast activation in OP related to type 1 diabetes (T1D) remains unclear. Glia maturation factor beta (GMFB) is considered a growth and differentiation factor for both glia and neurons. Here, we demonstrated that Gmfb deficiency effectively ameliorated the phenotype of T1D-OP in rats by inhibiting osteoclast hyperactivity. In vitro assays showed that GMFB participated in osteoclast activation rather than proliferation. Gmfb deficiency did not affect osteoclast sealing zone (SZ) formation but effectively decreased the SZ area by decreasing actin depolymerization. When GMFB was overexpressed in Gmfb-deficient osteoclasts, the size of the SZ area was enlarged in a dose-dependent manner. Moreover, decreased actin depolymerization led to a decrease in nuclear G-actin, which activated MKL1/SRF-dependent gene transcription. We found that pro-osteoclastogenic factors (Mmp9 and Mmp14) were downregulated, while anti-osteoclastogenic factors (Cftr and Fhl2) were upregulated in Gmfb KO osteoclasts. A GMFB inhibitor, DS-30, targeting the binding site of GMFB and Arp2/3, was obtained. Biocore analysis revealed a high affinity between DS-30 and GMFB in a dose-dependent manner. As expected, DS-30 strongly suppressed osteoclast hyperactivity in vivo and in vitro. In conclusion, our work identified a new therapeutic strategy for T1D-OP treatment. The discovery of GMFB inhibitors will contribute to translational research on T1D-OP.
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Affiliation(s)
- Si Shi
- Department of Ophthalmology of the Shanghai Tongji Hospital Affiliated with Tongji University, School of Medicine, and Tongji Eye Institute, 389 Xinchun Road, Shanghai, 200065, PR China
| | - Huijie Gu
- Department of Orthopedics, Minhang Hospital, Fudan University, 170 Xinsong Road, Shanghai, 201199, PR China
| | - Jinyuan Xu
- Department of Ophthalmology of the Shanghai Tongji Hospital Affiliated with Tongji University, School of Medicine, and Tongji Eye Institute, 389 Xinchun Road, Shanghai, 200065, PR China
| | - Wan Sun
- Department of Ophthalmology of the Shanghai Tongji Hospital Affiliated with Tongji University, School of Medicine, and Tongji Eye Institute, 389 Xinchun Road, Shanghai, 200065, PR China
| | - Caiyin Liu
- Department of Ophthalmology of the Shanghai Tongji Hospital Affiliated with Tongji University, School of Medicine, and Tongji Eye Institute, 389 Xinchun Road, Shanghai, 200065, PR China
| | - Tong Zhu
- Department of Ophthalmology of the Shanghai Tongji Hospital Affiliated with Tongji University, School of Medicine, and Tongji Eye Institute, 389 Xinchun Road, Shanghai, 200065, PR China
| | - Juan Wang
- Department of Ophthalmology of the Shanghai Tongji Hospital Affiliated with Tongji University, School of Medicine, and Tongji Eye Institute, 389 Xinchun Road, Shanghai, 200065, PR China
| | - Furong Gao
- Department of Ophthalmology of the Shanghai Tongji Hospital Affiliated with Tongji University, School of Medicine, and Tongji Eye Institute, 389 Xinchun Road, Shanghai, 200065, PR China
| | - Jieping Zhang
- Department of Ophthalmology of the Shanghai Tongji Hospital Affiliated with Tongji University, School of Medicine, and Tongji Eye Institute, 389 Xinchun Road, Shanghai, 200065, PR China
| | - Qingjian Ou
- Department of Ophthalmology of the Shanghai Tongji Hospital Affiliated with Tongji University, School of Medicine, and Tongji Eye Institute, 389 Xinchun Road, Shanghai, 200065, PR China
| | - Caixia Jin
- Department of Ophthalmology of the Shanghai Tongji Hospital Affiliated with Tongji University, School of Medicine, and Tongji Eye Institute, 389 Xinchun Road, Shanghai, 200065, PR China
| | - Jingying Xu
- Department of Ophthalmology of the Shanghai Tongji Hospital Affiliated with Tongji University, School of Medicine, and Tongji Eye Institute, 389 Xinchun Road, Shanghai, 200065, PR China
| | - Hao Chen
- Department of Ophthalmology of Ten People Hospital Affiliated with Tongji University, School of Medicine, Shanghai, 200072, PR China
| | - Jiao Li
- Department of Ophthalmology of the Shanghai Tongji Hospital Affiliated with Tongji University, School of Medicine, and Tongji Eye Institute, 389 Xinchun Road, Shanghai, 200065, PR China
| | - Guotong Xu
- Department of Ophthalmology of the Shanghai Tongji Hospital Affiliated with Tongji University, School of Medicine, and Tongji Eye Institute, 389 Xinchun Road, Shanghai, 200065, PR China.
- Department of Pharmacology, Tongji University School of Medicine, Shanghai, PR China.
| | - Haibin Tian
- Department of Ophthalmology of the Shanghai Tongji Hospital Affiliated with Tongji University, School of Medicine, and Tongji Eye Institute, 389 Xinchun Road, Shanghai, 200065, PR China.
- Department of Biochemistry and Molecular Biology, School of Medicine, Tongji University, 1239 Siping Road, Shanghai, 200092, PR China.
| | - Lixia Lu
- Department of Ophthalmology of the Shanghai Tongji Hospital Affiliated with Tongji University, School of Medicine, and Tongji Eye Institute, 389 Xinchun Road, Shanghai, 200065, PR China.
- Department of Biochemistry and Molecular Biology, School of Medicine, Tongji University, 1239 Siping Road, Shanghai, 200092, PR China.
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8
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Chang SJ, Kim YJ, Vu HT, Choi JM, Park JH, Shin SJ, Dashnyam K, Knowles JC, Lee HH, Jun SK, Han MR, Lee JH, Kim JS, Shin JS, Kim JB, Lee JH. Physicochemical, Pre-Clinical, and Biological Evaluation of Viscosity Optimized Sodium Iodide-Incorporated Paste. Pharmaceutics 2023; 15:pharmaceutics15041072. [PMID: 37111558 PMCID: PMC10143732 DOI: 10.3390/pharmaceutics15041072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/22/2023] [Accepted: 03/23/2023] [Indexed: 03/29/2023] Open
Abstract
This study aimed to investigate the impact of different viscosities of silicone oil on the physicochemical, pre-clinical usability, and biological properties of a sodium iodide paste. Six different paste groups were created by mixing therapeutic molecules, sodium iodide (D30) and iodoform (I30), with calcium hydroxide and one of the three different viscosities of silicone oil (high (H), medium (M), and low (L)). The study evaluated the performance of these groups, including I30H, I30M, I30L, D30H, D30M, and D30L, using multiple parameters such as flow, film thickness, pH, viscosity, and injectability, with statistical analysis (p < 0.05). Remarkably, the D30L group demonstrated superior outcomes compared to the conventional iodoform counterpart, including a significant reduction in osteoclast formation, as examined through TRAP, c-FOS, NFATc1, and Cathepsin K (p < 0.05). Additionally, mRNA sequencing showed that the I30L group exhibited increased expression of inflammatory genes with upregulated cytokines compared to the D30L group. These findings suggest that the optimized viscosity of the sodium iodide paste (D30L) may lead to clinically favorable outcomes, such as slower root resorption, when used in primary teeth. Overall, the results of this study suggest that the D30L group shows the most satisfactory outcomes, which may be a promising root-filling material that could replace conventional iodoform-based pastes.
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Affiliation(s)
- Soo-Jin Chang
- Department of Pediatric Dentistry, College of Dentistry, Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea (J.-S.S.)
| | - Yu-Jin Kim
- Department of Biomaterials Science, College of Dentistry, Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea
| | - Huong Thu Vu
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea
| | - Ji-Myung Choi
- Department of Pediatric Dentistry, College of Dentistry, Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea (J.-S.S.)
| | - Jeong-Hui Park
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea
| | - Seong-Jin Shin
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea
| | - Khandmaa Dashnyam
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea
- Drug Research Institute, Mongolian Pharmaceutical University & Monos Group, Ulaanbaatar 14250, Mongolia
| | - Jonathan C. Knowles
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea
- Cell & Matter Institute, Dankook University, Cheonan 31116, Republic of Korea
- Division of Biomaterials and Tissue Engineering, Eastman Dental Institute, Royal Free Hospital, Rowland Hill Street, London NW3 2PF, UK
| | - Hae-Hyoung Lee
- Department of Biomaterials Science, College of Dentistry, Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea
| | - Soo-Kyung Jun
- Department of Biomaterials Science, College of Dentistry, Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea
- Department of Dental Hygiene, Hanseo University, 46 Hanseo 1ro, Seosan 31962, Republic of Korea
| | - Mi-Ran Han
- Department of Pediatric Dentistry, College of Dentistry, Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea (J.-S.S.)
| | - Joon-Haeng Lee
- Department of Pediatric Dentistry, College of Dentistry, Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea (J.-S.S.)
| | - Jong-Soo Kim
- Department of Pediatric Dentistry, College of Dentistry, Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea (J.-S.S.)
| | - Ji-Sun Shin
- Department of Pediatric Dentistry, College of Dentistry, Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea (J.-S.S.)
| | - Jong-Bin Kim
- Department of Pediatric Dentistry, College of Dentistry, Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea (J.-S.S.)
- Correspondence: (J.-B.K.); (J.-H.L.)
| | - Jung-Hwan Lee
- Department of Biomaterials Science, College of Dentistry, Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, 119 Dandaero, Cheonan 31116, Republic of Korea
- Cell & Matter Institute, Dankook University, Cheonan 31116, Republic of Korea
- Mechanobiology Dental Medicine Research Center, Cheonan 31116, Republic of Korea
- Correspondence: (J.-B.K.); (J.-H.L.)
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9
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Zhao Y, Teng H, Deng Y, Sheldon M, Martinez C, Zhang J, Tian A, Sun Y, Nakagawa S, Yao F, Wang H, Ma L. Long noncoding RNA Malat1 inhibits Tead3-Nfatc1-mediated osteoclastogenesis to suppress osteoporosis and bone metastasis. RESEARCH SQUARE 2023:rs.3.rs-2405644. [PMID: 36993303 PMCID: PMC10055520 DOI: 10.21203/rs.3.rs-2405644/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
MALAT1, one of the few highly conserved nuclear long noncoding RNAs (IncRNAs), is abundantly expressed in normal tissues. Previously, targeted inactivation and genetic rescue experiments identified MALAT1 as a suppressor of breast cancer lung metastasis. On the other hand, Malat1-knockout mice are viable and develop normally. On a quest to discover new roles of MALAT1 in physiological and pathological processes, we found that this lncRNA is downregulated during osteoclastogenesis in humans and mice. Notably, Malat1 deficiency in mice promotes osteoporosis and bone metastasis, which can be rescued by genetic add-back of Malat1. Mechanistically, Malat1 binds to Tead3 protein, a macrophage-osteoclast-specific Tead family member, blocking Tead3 from binding and activating Nfatc1, a master regulator of osteoclastogenesis, which results in the inhibition of Nfatc1-mediated gene transcription and osteoclast differentiation. Altogether, these findings identify Malat1 as a lncRNA that suppresses osteoporosis and bone metastasis.
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Affiliation(s)
- Yang Zhao
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Hongqi Teng
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Yalan Deng
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Marisela Sheldon
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Consuelo Martinez
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Jie Zhang
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Annie Tian
- Department of Kinesiology, Rice University, Houston, Texas 77005, USA
| | - Yutong Sun
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Shinichi Nakagawa
- RNA Biology Laboratory, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Fan Yao
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
- Present address: Hubei Hongshan Laboratory, College of Biomedicine and Health, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Hai Wang
- Department of Molecular and Cellular Biology, Roswell Park Comprehensive Cancer Center, Buffalo, New York 14263, USA
| | - Li Ma
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
- The University of Texas MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, Houston, Texas 77030, USA
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10
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Ding M, Cho E, Chen Z, Park SW, Lee TH. ( S)-2-(Cyclobutylamino)- N-(3-(3,4-dihydroisoquinolin-2(1 H)-yl)-2-hydroxypropyl)isonicotinamide Attenuates RANKL-Induced Osteoclast Differentiation by Inhibiting NF-κB Nuclear Translocation. Int J Mol Sci 2023; 24:ijms24054327. [PMID: 36901758 PMCID: PMC10002170 DOI: 10.3390/ijms24054327] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/15/2023] [Accepted: 02/20/2023] [Indexed: 02/24/2023] Open
Abstract
Osteoporosis is a common skeletal disease; however, effective pharmacological treatments still need to be discovered. This study aimed to identify new drug candidates for the treatment of osteoporosis. Here, we investigated the effect of EPZ compounds, protein arginine methyltransferase 5 (PRMT5) inhibitors, on RANKL-induced osteoclast differentiation via molecular mechanisms by in vitro experiments. EPZ015866 attenuated RANKL-induced osteoclast differentiation, and its inhibitory effect was more significant than EPZ015666. EPZ015866 suppressed the F-actin ring formation and bone resorption during osteoclastogenesis. In addition, EPZ015866 significantly decreased the protein expression of Cathepsin K, NFATc1, and PU.1 compared with the EPZ015666 group. Both EPZ compounds inhibited the nuclear translocation of NF-κB by inhibiting the dimethylation of the p65 subunit, which eventually prevented osteoclast differentiation and bone resorption. Hence, EPZ015866 may be a potential drug candidate for the treatment of osteoporosis.
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Affiliation(s)
- Mina Ding
- BioMedical Sciences Graduate Program (BMSGP), Chonnam National University, Gwangju 61186, Republic of Korea
| | - Eunjin Cho
- Department of Oral Biochemistry, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Zhihao Chen
- BioMedical Sciences Graduate Program (BMSGP), Chonnam National University, Gwangju 61186, Republic of Korea
| | - Sang-Wook Park
- Department of Oral Biochemistry, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Tae-Hoon Lee
- Department of Oral Biochemistry, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea
- Correspondence:
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11
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Schweikl C, Maier-Wohlfart S, Schneider H, Park J. Ectodysplasin A1 Deficiency Leads to Osteopetrosis-like Changes in Bones of the Skull Associated with Diminished Osteoclastic Activity. Int J Mol Sci 2022; 23:12189. [PMID: 36293046 PMCID: PMC9603288 DOI: 10.3390/ijms232012189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/30/2022] [Accepted: 10/10/2022] [Indexed: 08/30/2023] Open
Abstract
Pathogenic variants of the gene Eda cause X-linked hypohidrotic ectodermal dysplasia (XLHED), which is characterized by structural abnormalities or lack of ectodermal appendages. Signs of dysplasia are not restricted to derivatives of the ectodermal layer, but mesodermal abnormalities, such as craniofacial dysmorphism, are also frequently observed, suggesting close reciprocal interactions between the ectoderm and mesoderm; however, a causal link has remained unsubstantiated. We investigated the functional impact of defective ectodysplasin A1 (Eda1) signaling on postnatal bone homeostasis in Eda1-deficient Tabby mice. Interestingly, Eda1 was detected in wild-type mouse calvariae throughout postnatal lifetime. In calvariae, bone-lining Osterix (Osx)+ osteoblasts stained positive for Eda1, and osteoclasts were revealed as Eda receptor (Edar)-positive. Moreover, adult Eda1-deficient calvarial bone showed osteopetrosis-like changes with significantly diminished marrow space, which was maintained during adulthood. Concomitantly with osteopetrosis-like changes, Tabby calvarial bone and Tabby bone marrow-derived osteoclasts had far less osteoclastic activity-associated co-enzymes including cathepsin K, Mmp9, Trap, and Tcirg1 (V-type proton ATPase a3 subunit) compared with wild-type calvariae in vivo or osteoclasts in vitro, indicating that Eda1 deficiency may affect the activity of osteoclasts. Finally, we confirmed that nuclear Nfatc1-positive osteoclasts were strongly diminished during mature osteoclastic differentiation under M-CSF and RANKL in the Tabby model, while Fc-EDA treatment of Tabby-derived osteoclasts significantly increased nuclear translocation of Nfatc1. Furthermore, we identified enhanced Nfatc1 and NF-κB transcriptional activity following Fc-EDA treatment in vitro using luciferase assays. Overall, the results indicate that diminished expressions of osteoclastic activity-associated co-enzymes may lead to disturbed bone homeostasis in Tabby calvariae postnatally.
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Affiliation(s)
- Christine Schweikl
- Department of Pediatrics, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
- Center for Ectodermal Dysplasias, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Sigrun Maier-Wohlfart
- Department of Pediatrics, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
- Center for Ectodermal Dysplasias, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Holm Schneider
- Department of Pediatrics, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
- Center for Ectodermal Dysplasias, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Jung Park
- Department of Pediatrics, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
- Center for Ectodermal Dysplasias, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
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12
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Groetsch B, Schachtschabel E, Tripal P, Schmid B, Smith AS, Schett G, Bozec A. Inflammatory activation of the FcγR and IFNγR pathways co-influences the differentiation and activity of osteoclasts. Front Immunol 2022; 13:958974. [PMID: 36148242 PMCID: PMC9486546 DOI: 10.3389/fimmu.2022.958974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 08/10/2022] [Indexed: 11/13/2022] Open
Abstract
Osteoclasts are polykaryons formed by cell–cell fusion of highly motile progenitors of the myeloid lineage. Osteoclast activity can preserve skeletal strength and bone homeostasis. However, osteoclasts are responsible for bone destruction in rheumatoid arthritis (RA). Fc receptors activated by IgG immune complexes (IC) can boost osteoclast differentiation and bone loss in the course of RA. In contrast, interferon (IFN) γ secreted by immune cells blocks osteoclast activation. Despite their hypothetical importance in the regulation of osteoclast differentiation in RA, the interconnection between the two pathways has not been described so far. Here, we show by total internal reflection fluorescence (TIRF) microscopy that FcγR3 and IFNγ receptor (IFNγR) locate at close vicinity to each other on the human osteoclast surface. Moreover, the average distance increases during the differentiation process. Interestingly, FcγR and IFNγR activation shapes the position of both receptors to each other. Surprisingly, the inhibitory action of IFNγ on in-vitro human osteoclast differentiation depends on the osteoclast differentiation stage. Indeed, IFNγR activation in early osteoclast precursors completely inhibits the formation of polynucleated osteoclasts, while in premature osteoclasts, it further enhanced their fusion. In addition, gene expression analyses showed that IFNγR activation on early precursor cells but not on premature osteoclasts could induce FcγR expression, suggesting a co-regulation of both receptors on human osteoclast precursors. Phosphokinase array data of precursor cells demonstrate that the observed divergence of IFNγR signaling is dependent on the mitogen−activated protein kinase (MAPK) downstream signaling pathway. Overall, our data indicate that FcγR and IFNγR signaling pathways co-influence the differentiation and activity of osteoclasts dependent on the differentiation state, which might reflect the different stages in RA.
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Affiliation(s)
- Bettina Groetsch
- Department of Internal Medicine 3, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Elisabeth Schachtschabel
- Department of Internal Medicine 3, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Philipp Tripal
- Optical Imaging Centre Erlangen (OICE), Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Benjamin Schmid
- Optical Imaging Centre Erlangen (OICE), Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Ana-Suncana Smith
- Institute for Theoretical Physics, Friedrich Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Georg Schett
- Department of Internal Medicine 3, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Aline Bozec
- Department of Internal Medicine 3, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- *Correspondence: Aline Bozec,
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13
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Gennari L, Rendina D, Merlotti D, Cavati G, Mingiano C, Cosso R, Materozzi M, Pirrotta F, Abate V, Calabrese M, Falchetti A. Update on the pathogenesis and genetics of Paget’s disease of bone. Front Cell Dev Biol 2022; 10:932065. [PMID: 36035996 PMCID: PMC9412102 DOI: 10.3389/fcell.2022.932065] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 07/25/2022] [Indexed: 11/24/2022] Open
Abstract
Studies over the past two decades have led to major advances in the pathogenesis of Paget’s disease of bone (PDB) and particularly on the role of genetic factors. Germline mutations of different genes have been identified, as a possible cause of this disorder, and most of the underlying pathways are implicated in the regulation of osteoclast differentiation and function, whereas other are involved in cell autophagy mechanisms. In particular, about 30 different germline mutations of the Sequestosome 1 gene (SQSTM1) have been described in a significant proportion of familial and sporadic PDB cases. The majority of SQSTM1 mutations affect the ubiquitin-binding domain of the protein and are associated to a more severe clinical expression of the disease. Also, germline mutations in the ZNF687 and PFN1 genes have been associated to severe, early onset, polyostotic PDB with increased susceptibly to neoplastic degeneration, particularly giant cell tumor. Mutations in the VCP (Valosin Containing Protein) gene cause the autosomal dominant syndrome “Inclusion Body Myopathy, PDB, Fronto-temporal Dementia,” characterized by pagetic manifestations, associated with myopathy, amyotrophic lateral sclerosis and fronto-temporal dementia. Moreover, germline mutations in the TNFRSF11A gene, which encodes for RANK, were associated with rare syndromes showing some histopathological, radiological, and clinical overlap with PDB and in two cases of early onset PDB-like disease. Likewise, genome wide association studies performed in unrelated PDB cases identified other potential predisposition genes and/or susceptibility loci. Thus, it is likely that polygenic factors are involved in the PDB pathogenesis in many individuals and that modifying genes may contribute in refining the clinical phenotype. Moreover, the contribution of somatic mutations of SQSTM1 gene and/or epigenetic mechanisms in the pathogenesis of skeletal pagetic abnormalities and eventually neoplastic degeneration, cannot be excluded. Indeed, clinical and experimental observations indicate that genetic susceptibility might not be a sufficient condition for the clinical development of PDB without the concomitant intervention of viral infection, in primis paramixoviruses, and/or other environmental factors (e.g., pesticides, heavy metals or tobacco exposure), at least in a subset of cases. This review summarizes the most important advances that have been made in the field of cellular and molecular biology PDB over the past decades.
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Affiliation(s)
- Luigi Gennari
- Department of Medicine Surgery and Neurosciences, University of Siena Italy, Siena, Italy
- *Correspondence: Luigi Gennari, ; Alberto Falchetti,
| | - Domenico Rendina
- Department of Clinical Medicine and Surgery, Federico II University, Naples, Italy
| | - Daniela Merlotti
- Department of Medical Sciences, Azienda Ospedaliera Universitaria Senese, Siena, Italy
| | - Guido Cavati
- Department of Medicine Surgery and Neurosciences, University of Siena Italy, Siena, Italy
| | - Christian Mingiano
- Department of Medicine Surgery and Neurosciences, University of Siena Italy, Siena, Italy
| | - Roberta Cosso
- Unit of Rehabilitation Medicine, San Giuseppe Hospital, Istituto Auxologico Italiano, Piancavallo, Italy
| | - Maria Materozzi
- Department of Medicine Surgery and Neurosciences, University of Siena Italy, Siena, Italy
- Age Related Diseases Unit, Division of Genetics and Cell Biology, San Raffaele Scientific Institute, Milano, Italy
| | - Filippo Pirrotta
- Department of Medicine Surgery and Neurosciences, University of Siena Italy, Siena, Italy
| | - Veronica Abate
- Department of Clinical Medicine and Surgery, Federico II University, Naples, Italy
| | - Marco Calabrese
- Department of Medicine Surgery and Neurosciences, University of Siena Italy, Siena, Italy
| | - Alberto Falchetti
- Experimental Research Laboratory on Bone Metabolism, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Istituto Auxologico Italiano, Milano, Italy
- *Correspondence: Luigi Gennari, ; Alberto Falchetti,
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14
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Kim SC, Kim HJ, Park GE, Lee CW, Synytsya A, Capek P, Park YI. Sulfated Glucuronorhamnoxylan from Capsosiphon fulvescens Ameliorates Osteoporotic Bone Resorption via Inhibition of Osteoclastic Cell Differentiation and Function In Vitro and In Vivo. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2022; 24:690-705. [PMID: 35796894 DOI: 10.1007/s10126-022-10136-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 06/08/2022] [Indexed: 06/15/2023]
Abstract
Excessive osteoclast differentiation and/or bone resorptive function causes a gradual loss of bone, leading to the pathogenesis of bone diseases such as osteoporosis (OP). In this study, a sulfated glucuronorhamnoxylan polysaccharide (designated SPS-CF) of the green alga Capsosiphon fulvescens was evaluated for anti-osteoporotic activity using osteoclastic cells differentiated from RAW264.7 macrophages by receptor activator of NF-κB ligand (RANKL) treatment and ovariectomized (OVX) female mice as a postmenopausal OP model. With negligible cytotoxicity, SPS-CF (50 μg/mL) significantly suppressed tartrate-resistant acid phosphatase (TRAP) activity, actin ring formation, and expression of matrix metalloproteinase 9 (MMP-9), cathepsin K, TRAF6, p-Pyk2, c-Cbl, c-Src, gelsolin, carbonic anhydrase II (CA II), and integrin β3, indicating that SPS-CF inhibits the differentiation and bone resorptive function of osteoclasts. Removal of sulfate groups from SPS-CF abolished its anti-osteoclastogenic activities, demonstrating that sulfate groups are critical for its activity. Oral administration of SPS-CF (400 mg/kg/day) to OVX mice significantly augmented the bone mineral density (BMD) and serum osteoprotegerin (OPG)/RANKL ratio. These results demonstrated that SPS-CF exerts significant anti-osteoporotic activity by dampening osteoclastogenesis and bone resorption via downregulation of TRAF6-c-Src-Pyk2-c-Cbl-gelsolin signaling and augmentation of serum OPG/RANKL ratios in OVX mice, suggesting that SPS-CF can be a novel anti-osteoporotic compound for treating postmenopausal OP.
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Affiliation(s)
- Seong Cheol Kim
- Department of Biotechnology, Graduate School, The Catholic University of Korea, Bucheon, Gyeonggi-do, 14662, Republic of Korea
| | - Hyeon Jeong Kim
- Department of Biotechnology, Graduate School, The Catholic University of Korea, Bucheon, Gyeonggi-do, 14662, Republic of Korea
| | - Gi Eun Park
- Department of Biotechnology, Graduate School, The Catholic University of Korea, Bucheon, Gyeonggi-do, 14662, Republic of Korea
| | - Chang Won Lee
- Department of Biotechnology, Graduate School, The Catholic University of Korea, Bucheon, Gyeonggi-do, 14662, Republic of Korea
| | - Andriy Synytsya
- Department of Carbohydrate Chemistry and Technology, University of Chemistry and Technology in Prague, Technická 5, 166 28, Prague, 6, Czech Republic
| | - Peter Capek
- Institute of Chemistry, Centre for Glycomics, Slovak Academy of Sciences, Dúbravská cesta 9, 845 38, Bratislava, Slovakia
| | - Yong Il Park
- Department of Biotechnology, Graduate School, The Catholic University of Korea, Bucheon, Gyeonggi-do, 14662, Republic of Korea.
- Department of Medical and Biological Sciences, The Catholic University of Korea, Bucheon, Gyeonggi-do, 14662, Republic of Korea.
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15
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Portes M, Mangeat T, Escallier N, Dufrancais O, Raynaud-Messina B, Thibault C, Maridonneau-Parini I, Vérollet C, Poincloux R. Nanoscale architecture and coordination of actin cores within the sealing zone of human osteoclasts. eLife 2022; 11:75610. [PMID: 35727134 PMCID: PMC9255968 DOI: 10.7554/elife.75610] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 06/20/2022] [Indexed: 11/13/2022] Open
Abstract
Osteoclasts are unique in their capacity to degrade bone tissue. To achieve this process, osteoclasts form a specific structure called the sealing zone, which creates a close contact with bone and confines the release of protons and hydrolases for bone degradation. The sealing zone is composed of actin structures called podosomes nested in a dense actin network. The organization of these actin structures inside the sealing zone at the nano scale is still unknown. Here, we combine cutting-edge microscopy methods to reveal the nanoscale architecture and dynamics of the sealing zone formed by human osteoclasts on bone surface. Random illumination microscopy allowed the identification and live imaging of densely packed actin cores within the sealing zone. A cross-correlation analysis of the fluctuations of actin content at these cores indicates that they are locally synchronized. Further examination shows that the sealing zone is composed of groups of synchronized cores linked by a-actinin1 positive filaments, and encircled by adhesion complexes. Thus, we propose that the confinement of bone degradation mediators is achieved through the coordination of islets of actin cores and not by the global coordination of all podosomal subunits forming the sealing zone.
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Affiliation(s)
- Marion Portes
- Institute de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Thomas Mangeat
- Centre de Biologie Intégrative, Université de Toulouse, CNRS, Toulouse, France
| | - Natacha Escallier
- Institute de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Ophélie Dufrancais
- Institute de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Brigitte Raynaud-Messina
- Institute de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Christophe Thibault
- Laboratoire d'analyse et d'architectures des systèmes (LAAS), Université de Toulouse, CNRS, Toulouse, France
| | - Isabelle Maridonneau-Parini
- Institute de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Christel Vérollet
- Institute de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Renaud Poincloux
- Institute de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, UPS, Toulouse, France
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16
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Serial Passaging of RAW 264.7 Cells Modulates Intracellular AGE Formation and Downregulates RANKL-Induced In Vitro Osteoclastogenesis. Int J Mol Sci 2022; 23:ijms23042371. [PMID: 35216486 PMCID: PMC8877082 DOI: 10.3390/ijms23042371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 02/18/2022] [Accepted: 02/19/2022] [Indexed: 02/04/2023] Open
Abstract
The passage number of cells refers to the number of subculturing processes that the cells have undergone. The effect of passage number on morphological and phenotypical characteristics of cells is of great importance. Advanced glycation end products have also been associated with cell functionality and characteristics. Murine monocyte RAW 264.7 cells differentiate into osteoclasts upon receptor activation caused by nuclear factor-kappa-Β ligand (RANKL) treatment. This study aims to identify the role of passage number on intracellular advanced glycation end products (AGEs) formation and osteoclastogenic differentiation of RAW 264.7 cells. Western blotting was performed to check intracellular AGE formation along with fluorometric analysis using a microplate reader. Tartrate-resistant acid phosphatase (TRAP) staining was performed to check osteoclastogenic differentiation, and qPCR was realized to check the responsible mRNA expression. Immunofluorescence was used to check the morphological changes. Intracellular AGE formation was increased with passaging, and the higher passage number inhibited multinucleated osteoclastogenic differentiation. Osteoclastogenic gene expression also showed a reducing trend in higher passages, along with a significant reduction in F-actin ring size and number. Lower passages should be used to avoid the effects of cell subculturing in in vitro osteoclastogenesis study using RAW 264.7 cells.
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17
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Mamun-Or-Rashid ANM, Lucy TT, Yagi M, Yonei Y. Inhibitory Effects of Astaxanthin on CML-HSA-Induced Inflammatory and RANKL-Induced Osteoclastogenic Gene Expression in RAW 264.7 Cells. Biomedicines 2021; 10:biomedicines10010054. [PMID: 35052734 PMCID: PMC8772757 DOI: 10.3390/biomedicines10010054] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 12/20/2021] [Accepted: 12/24/2021] [Indexed: 02/08/2023] Open
Abstract
Objective: Elevated levels of serum Nε-carboxymethyllysine (CML), a well-known advanced glycation end-product (AGE), were observed in patients with inflammation or osteoporosis. Astaxanthin was reported to possess anti-inflammatory and antioxidant effects. In the present study, we investigated the effects of commercially available dietary supplement AstaReal ACTR (ASR) capsule content as astaxanthin on CML-HSA-induced inflammatory and receptor activator of nuclear factor-kappa-Β ligand (RANKL)-induced osteoclastogenic gene expression. Methods: RAW 264.7 murine macrophage cells were stimulated with CML-HSA to trigger inflammatory gene expression and treated with either a vehicle control or varied concentrations of astaxanthin. Inflammatory gene expression was measured using an enzyme-linked immunosorbent assay (ELISA) or qPCR. We triggered osteoclastogenesis using RANKL, and osteoclastogenic gene expression was measured through tartrate-resistant acid phosphatase (TRAP) activity, staining, immunofluorescence, and qPCR analyses. Results: CML-HSA showed a stimulatory effect on inflammatory gene expression, and astaxanthin reduced the expression by at least two-fold. The levels of autoinflammatory gene expression were reduced by astaxanthin. The RANKL-induced osteoclastogenesis was significantly inhibited by astaxanthin, with reductions in the activation of nuclear factor-κB (NF-κB), the expression of NFATc1 (nuclear factor of activated T cells 1), multinucleated cell formation, and the expression of mature osteoclast marker genes. Conclusion: Astaxanthin has potential as a remedy for CML-HSA-induced inflammation and RANKL-induced excessive bone loss.
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18
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Karanth DS, Martin ML, Holliday LS. Plasma Membrane Receptors Involved in the Binding and Response of Osteoclasts to Noncellular Components of the Bone. Int J Mol Sci 2021; 22:ijms221810097. [PMID: 34576260 PMCID: PMC8466431 DOI: 10.3390/ijms221810097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 09/13/2021] [Accepted: 09/16/2021] [Indexed: 12/21/2022] Open
Abstract
Osteoclasts differentiate from hematopoietic cells and resorb the bone in response to various signals, some of which are received directly from noncellular elements of the bone. In vitro, adherence to the bone triggers the reduction of cell–cell fusion events between osteoclasts and the activation of osteoclasts to form unusual dynamic cytoskeletal and membrane structures that are required for degrading the bone. Integrins on the surface of osteoclasts are known to receive regulatory signals from the bone matrix. Regulation of the availability of these signals is accomplished by enzymatic alterations of the bone matrix by protease activity and phosphorylation/dephosphorylation events. Other membrane receptors are present in osteoclasts and may interact with as yet unidentified signals in the bone. Bone mineral has been shown to have regulatory effects on osteoclasts, and osteoclast activity is also directly modulated by mechanical stress. As understanding of how osteoclasts and other bone cells interact with the bone has emerged, increasingly sophisticated efforts have been made to create bone biomimetics that reproduce both the structural properties of the bone and the bone’s ability to regulate osteoclasts and other bone cells. A more complete understanding of the interactions between osteoclasts and the bone may lead to new strategies for the treatment of bone diseases and the production of bone biomimetics to repair defects.
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Affiliation(s)
- Divakar S. Karanth
- Department of Orthodontics, College of Dentistry, University of Florida, Gainesville, FL 32610, USA; (D.S.K.); (M.L.M.)
| | - Macey L. Martin
- Department of Orthodontics, College of Dentistry, University of Florida, Gainesville, FL 32610, USA; (D.S.K.); (M.L.M.)
| | - Lexie S. Holliday
- Department of Orthodontics, College of Dentistry, University of Florida, Gainesville, FL 32610, USA; (D.S.K.); (M.L.M.)
- Department of Anatomy & Cell Biology, College of Medicine, University of Florida, Gainesville, FL 32610, USA
- Correspondence:
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Kim JH, Shin H, Kim M, Kim S, Song K, Jung HS, Sohn Y. Solanum nigrum Line inhibits osteoclast differentiation and suppresses bone mineral density reduction in the ovariectomy‑induced osteoporosis model. Mol Med Rep 2021; 24:607. [PMID: 34184079 PMCID: PMC8240179 DOI: 10.3892/mmr.2021.12246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 04/22/2021] [Indexed: 12/18/2022] Open
Abstract
Bone homeostasis is maintained by osteoclasts that absorb bone and osteoblasts that form bone tissue. Menopausal osteoporosis is a disease associated with aging and hormonal changes due to menopause causing abnormal activation of osteoclasts, resulting in a decrease in bone density. Existing treatments for osteoporosis have been reported to have serious side effects, such as jawbone necrosis and breast and uterine cancer; therefore, their use by patients is decreasing, whilst studies focusing on alternative treatments are increasingly popular. Solanum nigrum Line (SL) has been used as a medicinal plant that possesses several pharmacological effects, such as anti‑inflammatory and hepatotoxic protective effects. To the best of our knowledge, however, its effects on osteoporosis and osteoclasts have not been demonstrated previously. In the present study, the anti‑osteoporotic effect of SL was investigated using a postmenopausal model of osteoporosis in which Sprague‑Dawley rat ovaries were extracted. In addition, the inhibitory effects on osteoclast differentiation and function of SL was confirmed using an osteoclast model treated with receptor activator of NF‑κB ligand (RANKL) on murine RAW 264.7 macrophages. In vivo experiments showed that SL reduced the decrease in bone mineral density and improved changes in the morphological index of bone microstructure, such as trabecular number and separation. In addition, the number of tartrate resistant acid phosphatase‑positive cells in the femur and the expression levels of nuclear factor of activated T‑cells cytoplasmic 1 (NFATc1) and cathepsin K protein were inhibited. In vitro, SL suppressed RANKL‑induced osteoclast differentiation and bone resorption ability; this was mediated by NFATc1/c‑Fos, a key transcription factor involved in osteoclast differentiation, ultimately inhibiting expression of various osteoclast‑associated genes. These experimental results show that SL may be an alternative treatment for osteoporosis caused by abnormal activation of osteoclasts in the future.
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Affiliation(s)
- Jae-Hyun Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02-447, Republic of Korea
| | - Hwajeong Shin
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02-447, Republic of Korea
| | - Minsun Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02-447, Republic of Korea
| | - Sangwoo Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02-447, Republic of Korea
| | - Kwangchan Song
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02-447, Republic of Korea
| | - Hyuk-Sang Jung
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02-447, Republic of Korea
| | - Youngjoo Sohn
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02-447, Republic of Korea
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20
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Manzato MC, de Santi F, da Silva AAS, Beltrame FL, Cerri PS, Sasso‐Cerri E. Cimetidine-induced androgenic failure causes cell death and changes in actin, EGF and V-ATPase immunoexpression in rat submandibular glands. J Anat 2021; 239:136-150. [PMID: 33713423 PMCID: PMC8197950 DOI: 10.1111/joa.13408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 01/31/2021] [Accepted: 02/01/2021] [Indexed: 01/18/2023] Open
Abstract
Submandibular gland (SMG) is responsive to androgens via androgen receptor (AR). We verified whether cimetidine induces androgenic dysfunction in SMG, and evaluated the structural integrity, cell death and immunoexpression of actin, EGF and V-ATPase in androgen-deficient SMG. Male rats received cimetidine (CMTG) and control animals (CG) received saline. Granular convoluted tubules (GCTs) diameter and number of acinar cell nuclei were evaluated. TUNEL and immunofluorescence reactions for detection of AR, testosterone, actin, EGF and V-ATPase were quantitatively analysed. In CG, testosterone immunolabelling was detected in acinar and ductal cells cytoplasm. AR-immunolabelled nuclei were observed in acinar cells whereas ductal cells showed AR-immunostained cytoplasm, indicating a non-genomic AR action. In CMTG, the weak testosterone and AR immunoexpression confirmed cimetidine-induced androgenic failure. A high cell death index was correlated with decreased number of acinar cells, GCTs diameter and EGF immunoexpression under androgenic dysfunction. Actin immunofluorescence decreased in the SMG cells, but an increased and diffuse cytoplasmic V-ATPase immunolabelling was observed in striated ducts, suggesting a disruption in the actin-dependent V-ATPase recycling due to androgenic failure. Our findings reinforce the androgenic role in the maintenance of SMG histophysiology, and point to a potential clinical use of cimetidine against androgen-dependent glandular tumour cells.
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Affiliation(s)
- Mariane Castro Manzato
- Department of Morphology, Genetics, Orthodontics and Pediatric DentistrySchool of DentistrySão Paulo State University (Unesp)AraraquaraBrazil
| | - Fabiane de Santi
- Department of Morphology and GeneticsFederal University of São PauloSão PauloBrazil
| | - André Acácio Souza da Silva
- Department of Morphology, Genetics, Orthodontics and Pediatric DentistrySchool of DentistrySão Paulo State University (Unesp)AraraquaraBrazil
| | - Flávia L. Beltrame
- Department of Morphology and GeneticsFederal University of São PauloSão PauloBrazil
| | - Paulo S. Cerri
- Department of Morphology, Genetics, Orthodontics and Pediatric DentistrySchool of DentistrySão Paulo State University (Unesp)AraraquaraBrazil
| | - Estela Sasso‐Cerri
- Department of Morphology, Genetics, Orthodontics and Pediatric DentistrySchool of DentistrySão Paulo State University (Unesp)AraraquaraBrazil
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21
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Bothrops moojeni Venom and Its Components Strongly Affect Osteoclasts' Maturation and Protein Patterns. Toxins (Basel) 2021; 13:toxins13070459. [PMID: 34208941 PMCID: PMC8310197 DOI: 10.3390/toxins13070459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/18/2021] [Accepted: 06/23/2021] [Indexed: 11/16/2022] Open
Abstract
Osteoclasts (OCs) are important for bone maintenance, calcium balance, and tissue regeneration regulation and are involved in different inflammatory diseases. Our study aimed to evaluate the effect of Bothrops moojeni's venom and its low and high molecular mass (HMM and LMM) fractions on human peripheral blood mononuclear cell (PBMC)-derived OCs' in vitro differentiation. Bothrops moojeni, a Brazilian lanced-head viper, presents a rich but not well-explored, venom composition. This venom is a potent inducer of inflammation, which can be used as a tool to investigate the inflammatory process. Human PBMCs were isolated and induced to OC differentiation following routine protocol. On the fourth day of differentiation, the venom was added at different concentrations (5, 0.5, and 0.05 µg/mL). We observed a significant reduction of TRAP+ (tartrate-resistant acid phosphatase) OCs at the concentration of 5 µg/mL. We evaluated the F-actin-rich OCs structure's integrity; disruption of its integrity reflects bone adsorption capacity. F-actin rings phalloidin staining demonstrated that venom provoked their disruption in treated OCs. HMM, fraction reduces TRAP+ OCs at a concentration of 5 µg/mL and LMM fraction at 1 µg/mL, respectively. Our results indicate morphological changes that the venom induced cause in OCs. We analyzed the pattern of soluble proteins found in the conditioned cell culture medium OCs treated with venom and its fractions using mass spectrometry (LC-MS/IT-Tof). The proteomic analyses indicate the possible pathways and molecular mechanisms involved in OC reduction after the treatment.
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22
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Kim SC, Kim HJ, Park GE, Pandey RP, Lee J, Sohng JK, Park YI. Trilobatin ameliorates bone loss via suppression of osteoclast cell differentiation and bone resorptive function in vitro and in vivo. Life Sci 2021; 270:119074. [PMID: 33497739 DOI: 10.1016/j.lfs.2021.119074] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 01/06/2021] [Accepted: 01/11/2021] [Indexed: 12/27/2022]
Abstract
AIM Due to on-going safety concerns or lack of efficacy of currently used medications for the treatment of osteoporosis (OP), identifying new therapeutic agents is an important part of research. In the present study, potential anti-osteoporotic activity of a natural flavonoid glycoside, trilobatin (phloretin 4-O-glucoside, Tri) was evaluated. MATERIAL AND METHODS Osteoclastic cells were established by treating the RAW264.7 macrophage cells with RANKL and ovariectomized (OVX) C57BL/6 female mice were used as an animal model of postmenopausal OP. Actin ring formation, expression levels of osteoclastogenic marker genes and bone resorptive proteins were measured by RT-PCR, western blot, or fluorometric assays. Bone mineral density (BMD) was determined by pDEXA densitometric measurement and serum osteoprotegerin (OPG) and RANKL were measured by ELISA. KEY FINDING Tri (5-20 μM) significantly inhibited osteoclast formation and actin ring formation in RANKL-induced osteoclasts. Tri attenuated expression of osteoclastogenic genes (MMP-9 and cathepsin K), bone resorptive proteins (CA II and integrin β3), and osteoclastogenic signalling proteins (TRAF6, p-Pyk2, c-Cbl, and c-Src). Oral administration of Tri to OVX mice augmented BMD and serum OPG/RANKL ratio. Interestingly, while Tri and phloretin aglycone (Phl) showed similar levels of in vitro anti-osteoclastogenic activity, Tri more potently ameliorated bone loss than Phl in OVX mice. SIGNIFICANCE This study demonstrated that Tri inhibits osteoclastic cell differentiation and bone resorption by down-regulating the expression of osteoclastogenic marker genes and signalling proteins, bone resorptive proteins, and by augmenting serum OPG/RANKL ratio, suggesting that Tri can be a novel anti-osteoporotic compound for treating senile and postmenopausal OP.
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Affiliation(s)
- Seong Cheol Kim
- Department of Biotechnology, The Catholic University of Korea, Bucheon, Gyeonggi-do 14662, Republic of Korea
| | - Hyeon Jeong Kim
- Department of Biotechnology, The Catholic University of Korea, Bucheon, Gyeonggi-do 14662, Republic of Korea
| | - Gi Eun Park
- Department of Biotechnology, The Catholic University of Korea, Bucheon, Gyeonggi-do 14662, Republic of Korea
| | - Ramesh Prasad Pandey
- Department of Life Science and Biochemical Engineering, Sun Moon University, Chungnam 31460, Republic of Korea
| | - Jisun Lee
- Department of Biotechnology, The Catholic University of Korea, Bucheon, Gyeonggi-do 14662, Republic of Korea
| | - Jae Kyung Sohng
- Department of Life Science and Biochemical Engineering, Sun Moon University, Chungnam 31460, Republic of Korea
| | - Yong Il Park
- Department of Biotechnology, The Catholic University of Korea, Bucheon, Gyeonggi-do 14662, Republic of Korea.
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23
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Negrescu AM, Necula MG, Gebaur A, Golgovici F, Nica C, Curti F, Iovu H, Costache M, Cimpean A. In Vitro Macrophage Immunomodulation by Poly(ε-caprolactone) Based-Coated AZ31 Mg Alloy. Int J Mol Sci 2021; 22:ijms22020909. [PMID: 33477539 PMCID: PMC7831122 DOI: 10.3390/ijms22020909] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/14/2021] [Accepted: 01/14/2021] [Indexed: 12/12/2022] Open
Abstract
Due to its excellent bone-like mechanical properties and non-toxicity, magnesium (Mg) and its alloys have attracted great interest as biomaterials for orthopaedic applications. However, their fast degradation rate in physiological environments leads to an acute inflammatory response, restricting their use as biodegradable metallic implants. Endowing Mg-based biomaterials with immunomodulatory properties can help trigger a desired immune response capable of supporting a favorable healing process. In this study, electrospun poly(ε-caprolactone) (PCL) fibers loaded with coumarin (CM) and/or zinc oxide nanoparticles (ZnO) were used to coat the commercial AZ31 Mg alloy as single and combined formulas, and their effects on the macrophage inflammatory response and osteoclastogenic process were investigated by indirect contact studies. Likewise, the capacity of the analyzed samples to generate reactive oxygen species (ROS) has been investigated. The data obtained by attenuated total reflection Fourier-transform infrared (FTIR-ATR) and X-ray photoelectron spectroscopy (XPS) analyses indicate that AZ31 alloy was perfectly coated with the PCL fibers loaded with CM and ZnO, which had an important influence on tuning the release of the active ingredient. Furthermore, in terms of degradation in phosphate-buffered saline (PBS) solution, the PCL-ZnO- and secondary PCL-CM-ZnO-coated samples exhibited the best corrosion behaviour. The in vitro results showed the PCL-CM-ZnO and, to a lower extent, PCL-ZnO coated sample exhibited the best behaviour in terms of inflammatory response and receptor activator of nuclear factor kappa-B ligand (RANKL)-mediated differentiation of RAW 264.7 macrophages into osteoclasts. Altogether, the results obtained suggest that the coating of Mg alloys with fibrous PCL containing CM and/or ZnO can constitute a feasible strategy for biomedical applications.
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Affiliation(s)
- Andreea-Mariana Negrescu
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania; (A.-M.N.); (M.-G.N.); (C.N.); (M.C.)
| | - Madalina-Georgiana Necula
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania; (A.-M.N.); (M.-G.N.); (C.N.); (M.C.)
| | - Adi Gebaur
- Advance Polymer Materials Group, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Gh. Polizu 17, 011061 Bucharest, Romania; (A.G.); (F.C.); (H.I.)
| | - Florentina Golgovici
- Department of General Chemistry, Faculty of Applied Chemistry and Material Science, University Politehnica of Bucharest, Gh. Polizu 1-7, 011061 Bucharest, Romania;
| | - Cristina Nica
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania; (A.-M.N.); (M.-G.N.); (C.N.); (M.C.)
| | - Filis Curti
- Advance Polymer Materials Group, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Gh. Polizu 17, 011061 Bucharest, Romania; (A.G.); (F.C.); (H.I.)
| | - Horia Iovu
- Advance Polymer Materials Group, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Gh. Polizu 17, 011061 Bucharest, Romania; (A.G.); (F.C.); (H.I.)
| | - Marieta Costache
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania; (A.-M.N.); (M.-G.N.); (C.N.); (M.C.)
| | - Anisoara Cimpean
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania; (A.-M.N.); (M.-G.N.); (C.N.); (M.C.)
- Correspondence: ; Tel.: +40-21-318-1575 (ext. 106)
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24
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Li X, Wang Y, Li L, Zhou S, Zhao F. Sclareol inhibits RANKL-induced osteoclastogenesis and promotes osteoblastogenesis through promoting CCN1 expression via repressing the MAPK pathway. Cell Biol Toxicol 2021; 37:849-871. [PMID: 33423118 DOI: 10.1007/s10565-020-09578-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 12/25/2020] [Indexed: 11/28/2022]
Abstract
Osteoclasts are crucial cellular components of bone and are the cause of various bone problems like osteoporosis. Various biological activities such as anti-tumorous, anti-inflammatory, antibacterial, and immunomodulatory function are influenced by Sclareol, as a natural diterpene compound. However, studies on the effect and mechanism of Sclareol on osteoporosis are rare. In the current research, the influence of Sclareol on osteoclastogenesis and osteoblastogenesis was targeted to be discovered in ovariectomy (OVX)-induced animal models and in vitro. The expression levels of osteoclast-related genes such as c-Fos, NFATc1, and CTSK were detected by RT-qPCR and western blotting to understand the inhibition of Sclareol on the creation of osteoclast. The influence of Sclareol on osteoblastogenesis and the expression of osteoblastogenic markers were also examined. Sclareol inhibited the osteoclastogenesis caused by receptor activator of nuclear factor-κB ligand (RANKL) which promoted osteoblastogenesis through upregulating the expression of cysteine-rich protein 61 (CYR61/CCN1), which is a matricellular protein of the CCN family. The p-ERK and p-P38 protein expression levels were considerably downregulated by Sclareol. Furthermore, CCN1 overexpression partially mimicked the inhibitory effect of Sclareol, while the opposite results were obtained after CCN1 silencing. Additionally, Sclareol protected against loss of bones in an osteoporosis mouse model generated by OVX. The acquired results indicated that Sclareol represses RANKL-induced osteoclastogenesis and promotes osteoblastogenesis via promoting the expression of CCN1 by constraining the mitogen-activated protein kinase (MAPK) pathway. Our findings proposed that for the avoidance and treatment of osteoclast-linked disorders, Sclareol is a potentially effective drug. A proposed model for mediated regulation of osteoclastogenesis and osteoblastogenesis by Sclareol. The basic model of the process by which Sclareol prevents osteoclastogenesis and promotes osteoblastogenesis. Sclareol may increase the expression of CCN1 through inhibiting the MAPK pathway, thereby inhibiting osteoclast differentiation and attenuating bone resorption. Sclareol represses the expression of c-Fos, which stimulates the formation of osteoclast. In contrast, Sclareol promotes osteoblast differentiation by upregulating Runx2 expression, thereby improving the formation of bones. Consequently, Sclareol protects against loss of bones by regulating the stability of bone makeover via inhibition of bone formation and stimulation of bone resorption. Graphical Headlights 1. Sclareol represses RANKL-induced osteoclastogenesis. 2. Sclareol promotes osteoblast differentiation. 3. Sclareol inhibits the MAPK pathway through induction of CCN1. 4. Sclareol protects against bone loss by regulating the balance of bone remodeling via inhibition of bone formation and stimulation of bone resorption.
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Affiliation(s)
- Xiang Li
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, No. 79 Qingchun Road, Hangzhou, 310003, People's Republic of China
| | - Yuxin Wang
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, No. 79 Qingchun Road, Hangzhou, 310003, People's Republic of China
| | - Liangping Li
- Department of Surgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310009, People's Republic of China
| | - Shengji Zhou
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, No. 79 Qingchun Road, Hangzhou, 310003, People's Republic of China
| | - Fengchao Zhao
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, No. 79 Qingchun Road, Hangzhou, 310003, People's Republic of China.
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Merlotti D, Materozzi M, Bianciardi S, Guarnieri V, Rendina D, Volterrani L, Bellan C, Mingiano C, Picchioni T, Frosali A, Orfanelli U, Cenci S, Gennari L. Mutation of PFN1 Gene in an Early Onset, Polyostotic Paget-like Disease. J Clin Endocrinol Metab 2020; 105:5835857. [PMID: 32392277 DOI: 10.1210/clinem/dgaa252] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 05/05/2020] [Indexed: 12/11/2022]
Abstract
CONTEXT Paget disease of bone (PDB) is a metabolic bone disease whose genetic cause remains unknown in up to 50% of familial patients. OBJECTIVE Our aim was to investigate the underlying genetic defect in a large pedigree with a severe, early onset, autosomal dominant form of PDB across 3 generations. METHODS Whole exome sequencing was performed in affected and unaffected family members, and then mutation screening was replicated in a sample of PDB patients with early-onset, polyostotic PDB. RESULTS We identified a frameshift D107Rfs*3 mutation in PFN1 (encoding for profilin 1, a highly conserved regulator of actin-polymerization and cell motility) causing the truncation of the C-terminal part of the protein. The mutation was also detected in a 17-year-old asymptomatic family member who upon biochemical and radiological analyses was indeed found to be affected. Sequencing of the entire PFN1 coding region in unrelated PDB patients identified the same mutation in 1 patient. All mutation carriers had a reduced response to bisphosphonates, requiring multiple zoledronate infusions to control bone pain and achieve biochemical remission over a long term. In vitro osteoclastogenesis in peripheral blood mononuclear cells (PBMCs) from mutation carriers showed a higher number of osteoclasts with PDB-like features. A similar phenotype was observed upon PFN1 silencing in murine bone marrow-derived monocytes, suggesting that the frameshift PFN1 mutation confers a loss of function in profilin 1 activity that induces PDB-like features in the osteoclasts, likely due to enhanced cell motility and actin ring formation. CONCLUSIONS Our findings indicate that PFN1 mutation causes an early onset, polyostotic PDB-like disorder.
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Affiliation(s)
- Daniela Merlotti
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
| | - Maria Materozzi
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
- Division of Genetics and Cell Biology, San Raffaele Scientific Institute, Milan, Italy
| | - Simone Bianciardi
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
| | - Vito Guarnieri
- Medical Genetics Service, IRCCS "Casa Sollievo della Sofferenza" Hospital, San Giovanni Rotondo (FG), Italy
| | - Domenico Rendina
- Department of Clinical and Surgical Sciences, Federico II University Medical School, Naples, Italy
| | - Luca Volterrani
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
| | - Cristiana Bellan
- Department of Medical Biotechnologies, University of Siena, Italy
| | - Christian Mingiano
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
| | - Tommaso Picchioni
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
| | - Alessandro Frosali
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
| | - Ugo Orfanelli
- Division of Genetics and Cell Biology, San Raffaele Scientific Institute, Milan, Italy
| | - Simone Cenci
- Division of Genetics and Cell Biology, San Raffaele Scientific Institute, Milan, Italy
| | - Luigi Gennari
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
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Pang C, Wen L, Qin H, Zhu B, Lu X, Luo S. Sotrastaurin, a PKC inhibitor, attenuates RANKL-induced bone resorption and attenuates osteochondral pathologies associated with the development of OA. J Cell Mol Med 2020; 24:8452-8465. [PMID: 32652826 PMCID: PMC7412701 DOI: 10.1111/jcmm.15404] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 04/29/2020] [Accepted: 05/03/2020] [Indexed: 12/19/2022] Open
Abstract
Osteoarthritis (OA) is a common degenerative disease that affects the musculoskeletal structure of the whole joint, which is characterized by progressive destruction of both articular cartilage and subchondral bone. Treatment of the bone pathologies, particularly osteoclast‐mediated subchondral bone loss in the early stages of OA, could prevent subsequent cartilage degeneration and progression of OA. In the present study, the PKC inhibitor, Sotrastaurin, was found to inhibit RANKL‐induced osteoclast formation in vitro in a dose‐ and time‐dependent manner. In particular, SO exerted its anti‐osteoclastic effect predominantly at the early stages of RANKL stimulation, suggesting inhibitory effects on precursor cell fusion. Using mature osteoclasts cultured on bovine bone discs, we showed that SO also exerts anti‐resorptive effects on mature osteoclasts bone resorptive function. Mechanistically, SO attenuates the early activation of the p38, ERK and JNK signalling pathways, leeding to impaired induction of crucial osteoclast transcription factors c‐Jun, c‐Fos and NFATc1. We also showed that SO treatment significantly inhibited the phosphorylation of PKCδ and MARCKS, an upstream regulator of cathepsin K secretion. Finally, in animal studies, SO significantly alleviates the osteochondral pathologies of subchondral bone destruction as well as articular cartilage degeneration following DMM‐induced OA, markedly improving OARSI scores. The reduced subchondral bone loss was associated with marked reductions in TRAP(+) osteoclasts in the subchondral bone tissue. Collectively, our data provide evidence for the protective effects of SO against OA by preventing aberrant subchondral bone and articular cartilage changes. Thus, SO demonstrates potential for further development as an alternative therapeutic option against OA.
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Affiliation(s)
- Cong Pang
- Department of Orthopedics, The Ninth Affiliated Hospital of Guangxi Medical University, Beihai, China.,Department of Orthopedics, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, China
| | - Liangbao Wen
- Department of Neurosurgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Haikuo Qin
- Department of Orthopedics, The Ninth Affiliated Hospital of Guangxi Medical University, Beihai, China
| | - Bikang Zhu
- Department of Orthopedics, The Ninth Affiliated Hospital of Guangxi Medical University, Beihai, China
| | - Xuanyuan Lu
- Department of Orthopedics, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, China
| | - Shixing Luo
- Department of Orthopedics, The Ninth Affiliated Hospital of Guangxi Medical University, Beihai, China
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27
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Isoalantolactone inhibits RANKL-induced osteoclast formation via multiple signaling pathways. Int Immunopharmacol 2020; 84:106550. [PMID: 32388216 DOI: 10.1016/j.intimp.2020.106550] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 04/27/2020] [Accepted: 04/27/2020] [Indexed: 12/12/2022]
Abstract
The metabolicosteopathy known as postmenopausal osteoporosisiscaused by disruption of the balance between bone resorption and osteogenesis, processes that are mediated by osteoclasts and osteoblasts, respectively. The current therapeutic approaches to treating osteoporosis have several limitations. In this study, we demonstrated that the natural chemical compound isoalantolactone (IAL) could inhibit osteoclastogenesis, without affecting osteogenesis. This is the first study reporting a role of IAL in suppressing the receptor activator of nuclear factor-kappa B ligand (RANKL)-induced osteoclast formation in a dose-dependent manner, and downregulating the expression of osteoclast-related marker genes. Furthermore, IAL abrogated the phosphorylation of c-Jun N-terminal kinase (JNK)/p38, NF-κB, and phosphatidylinositol 3-kinase (PI3K)-AKT, and also diminished the expression of osteoclastogenesis-related proteins. In conclusion, our results indicated that IAL has promise for the treatment of osteoporosis and other metabolicbone diseases.
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Zhi X, Wang L, Chen H, Fang C, Cui J, Hu Y, Cao L, Weng W, Zhou Q, Qin L, Song H, Wang Y, Wang Y, Jiang H, Li X, Wang S, Chen X, Su J. l-tetrahydropalmatine suppresses osteoclastogenesis in vivo and in vitro via blocking RANK-TRAF6 interactions and inhibiting NF-κB and MAPK pathways. J Cell Mol Med 2020; 24:785-798. [PMID: 31725199 PMCID: PMC6933417 DOI: 10.1111/jcmm.14790] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 09/10/2019] [Accepted: 09/23/2019] [Indexed: 02/06/2023] Open
Abstract
Bone homeostasis is delicately orchestrated by osteoblasts and osteoclasts. Various pathological bone loss situations result from the overactivated osteoclastogenesis. Receptor activator of nuclear factor κB ligand (RANKL)-activated NF-κB and MAPK pathways is vital for osteoclastogenesis. Here, we for the first time explored the effects of l-tetrahydropalmatine (l-THP), an active alkaloid derived from corydalis, on the formation and function of osteoclasts in vitro and in vivo. In RAW264.7 cells and bone marrow monocytes cells (BMMCs), l-THP inhibited osteoclastic differentiation at the early stage, down-regulated transcription level of osteoclastogenesis-related genes and impaired osteoclasts functions. Mechanically, Western blot showed that l-THP inhibited the phosphorylation of P50, P65, IκB, ERK, JNK and P38, and the electrophoretic mobility shift assay (EMSA) revealed that DNA binding activity of NF-κB was suppressed, ultimately inhibiting the expression of nuclear factor of activated T cells (NFATc1). Besides, Co-immunoprecipitation indicated that l-THP blocked the interactions of RANK and TNF receptor associated factor 6 (TRAF6) at an upstream site. In vivo, l-THP significantly inhibited ovariectomy-induced bone loss and osteoclastogenesis in mice. Collectively, our study demonstrated that l-THP suppressed osteoclastogenesis by blocking RANK-TRAF6 interactions and inhibiting NF-κB and MAPK pathways. l-THP is a promising agent for treating osteoclastogenesis-related diseases such as post-menopausal osteoporosis.
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Affiliation(s)
- Xin Zhi
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
- Basic Medical School, Naval Military Medical University, Shanghai, China
| | - Lipeng Wang
- Graduate Management Unit, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Huiwen Chen
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Chao Fang
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Jin Cui
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Yan Hu
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Liehu Cao
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Weizong Weng
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Qirong Zhou
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Longjuan Qin
- Orthopedic Basic and Translational Research Center, Jiangyin, China
| | - Hongyuan Song
- Department of Ophthalmology, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Yajun Wang
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Yao Wang
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Hao Jiang
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Xiaoqun Li
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
- Basic Medical School, Naval Military Medical University, Shanghai, China
| | - Sicheng Wang
- Department of Orthopedics, Shanghai Zhongye Hospital, Shanghai, China
| | - Xiao Chen
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
- Department of Chemistry, Fudan University, Shanghai, China
| | - Jiacan Su
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
- China-South Korea Bioengineering Center, Shanghai, China
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Li X, Ning L, Ma J, Xie Z, Zhao X, Wang G, Wan X, Qiu P, Yao T, Wang H, Fan S, Wan S. The PPAR-γ antagonist T007 inhibits RANKL-induced osteoclastogenesis and counteracts OVX-induced bone loss in mice. Cell Commun Signal 2019; 17:136. [PMID: 31655621 PMCID: PMC6815399 DOI: 10.1186/s12964-019-0442-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 09/20/2019] [Indexed: 02/12/2023] Open
Abstract
Background Osteoclasts are key determinant cellular components implicated in the development and progression of disorders driven by bone damage. Herein, we studied the upshot of T007, an antagonist of peroxisome proliferator-activated receptor-gamma (PPARγ), on osteoclastogenesis using cell and animal models. Results The in vitro assays revealed that T007 hindered the osteoclastogenesis caused by the treatment with the receptor activator of nuclear factor-κB ligand (RANKL) through inhibiting the levels of PPARγ in cells. The PPARγ siRNA partially reproduced the inhibitory action of T007. The opposite findings were produced after PPARγ overexpression. Furthermore, T007 prevented from bone loss in a mouse model of osteoporosis induced by ovariectomy (OVX). These findings implied that T007 is a potential efficient drug for the prophylaxis and cure of osteoclast-related disorders. Conclusions Taken together, our findings demonstrated that T007 impedes osteoclastogenesis and will be useful for the therapy of bone related diseases, essentially osteoporosis.
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Affiliation(s)
- Xiang Li
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou, 310016, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, 310016, China
| | - Lei Ning
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou, 310016, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, 310016, China
| | - Jianjun Ma
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou, 310016, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, 310016, China
| | - Ziang Xie
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou, 310016, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, 310016, China
| | - Xiangde Zhao
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou, 310016, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, 310016, China
| | - Gangliang Wang
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou, 310016, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, 310016, China
| | - Xinyu Wan
- First Clinical Medical College, Wenzhou Medical University, Wenzhou, 325035, China
| | - Pengcheng Qiu
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou, 310016, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, 310016, China
| | - Teng Yao
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou, 310016, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, 310016, China
| | - Haoming Wang
- The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China
| | - Shunwu Fan
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou, 310016, China. .,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, 310016, China.
| | - Shuanglin Wan
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou, 310016, China. .,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, 310016, China.
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Peláez R, Pariente A, Pérez-Sala Á, Larrayoz IM. Integrins: Moonlighting Proteins in Invadosome Formation. Cancers (Basel) 2019; 11:cancers11050615. [PMID: 31052560 PMCID: PMC6562994 DOI: 10.3390/cancers11050615] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 04/26/2019] [Accepted: 04/28/2019] [Indexed: 12/24/2022] Open
Abstract
Invadopodia are actin-rich protrusions developed by transformed cells in 2D/3D environments that are implicated in extracellular matrix (ECM) remodeling and degradation. These structures have an undoubted association with cancer invasion and metastasis because invadopodium formation in vivo is a key step for intra/extravasation of tumor cells. Invadopodia are closely related to other actin-rich structures known as podosomes, which are typical structures of normal cells necessary for different physiological processes during development and organogenesis. Invadopodia and podosomes are included in the general term 'invadosomes,' as they both appear as actin puncta on plasma membranes next to extracellular matrix metalloproteinases, although organization, regulation, and function are slightly different. Integrins are transmembrane proteins implicated in cell-cell and cell-matrix interactions and other important processes such as molecular signaling, mechano-transduction, and cell functions, e.g., adhesion, migration, or invasion. It is noteworthy that integrin expression is altered in many tumors, and other pathologies such as cardiovascular or immune dysfunctions. Over the last few years, growing evidence has suggested a role of integrins in the formation of invadopodia. However, their implication in invadopodia formation and adhesion to the ECM is still not well known. This review focuses on the role of integrins in invadopodium formation and provides a general overview of the involvement of these proteins in the mechanisms of metastasis, taking into account classic research through to the latest and most advanced work in the field.
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Affiliation(s)
- Rafael Peláez
- Biomarkers and Molecular Signaling Group, Neurodegenerative Diseases Area Center for Biomedical Research of La Rioja, CIBIR, c.p., 26006. Logroño, Spain.
| | - Ana Pariente
- Biomarkers and Molecular Signaling Group, Neurodegenerative Diseases Area Center for Biomedical Research of La Rioja, CIBIR, c.p., 26006. Logroño, Spain.
| | - Álvaro Pérez-Sala
- Biomarkers and Molecular Signaling Group, Neurodegenerative Diseases Area Center for Biomedical Research of La Rioja, CIBIR, c.p., 26006. Logroño, Spain.
| | - Ignacio M Larrayoz
- Biomarkers and Molecular Signaling Group, Neurodegenerative Diseases Area Center for Biomedical Research of La Rioja, CIBIR, c.p., 26006. Logroño, Spain.
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