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Nishida S, Azetsu Y, Chatani M, Karakawa A, Otake K, Sugiki H, Sakai N, Maruoka Y, Myers M, Takami M. Tacrolimus, FK506, promotes bone formation in bone defect mouse model. J Oral Biosci 2024; 66:391-402. [PMID: 38360372 DOI: 10.1016/j.job.2024.02.003] [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: 01/23/2024] [Revised: 02/09/2024] [Accepted: 02/13/2024] [Indexed: 02/17/2024]
Abstract
OBJECTIVES Some studies have reported that tacrolimus (FK506), an immunosuppressant, may have positive effects on bone formation. However, the precise effects of FK506 on bone repair or osteoblasts remain inadequately elucidated, and limited research has explored the outcomes of its use in an in vivo mouse model. This study aims to examine the effects of FK506 on bone repair and osteoblast functions using bone defect and BMP-2-induced ectopic ossification mouse models, as well as cultured primary mouse osteoblasts treated with FK506. METHODS We established mouse models of femur bone defect and BMP-2-induced ectopic ossification to evaluate the effect of FK506 on new bone formation, respectively. Additionally, primary mouse osteoblasts were cultured with FK506 and examined for gene expressions related to osteoblast differentiation. RESULTS While FK506 promoted the repair of bone defect areas in the femur of the bone defect mouse model, it also led to widespread abnormal bone formation outside the intended area. Additionally, following the implantation of a collagen sponge containing BMP-2 into mouse muscle tissue, FK506 was found to promote ectopic ossification and enhance BMP-2-induced osteoblast differentiation in vitro. Our findings also revealed that FK506 increased the number of immature osteoblasts in the absence of BMP-2 without affecting osteoblast differentiation. Furthermore, direct effects were observed, reducing the ability of osteoblasts to support osteoclastogenesis. CONCLUSIONS These results indicate that FK506 increases new bone formation during bone repair and influences the proliferation of immature osteoblasts, as well as osteoblast-supported osteoclastogenesis.
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Affiliation(s)
- Satoko Nishida
- Department of Pharmacology, Graduate School of Dentistry, Showa University, 1-5-8 Hatanodai, Shinagawa, Tokyo, 142-8555, Japan; Department of Medical and Dental Cooperative Dentistry, Graduate School of Dentistry, Showa University, 2-1-1 Kitasenzoku, Ota, Tokyo, 145-8515, Japan; Pharmacological Research Center, Showa University, 1-5-8 Hatanodai, Shinagawa, Tokyo, 142-8555, Japan
| | - Yuki Azetsu
- Department of Pharmacology, Graduate School of Dentistry, Showa University, 1-5-8 Hatanodai, Shinagawa, Tokyo, 142-8555, Japan; Pharmacological Research Center, Showa University, 1-5-8 Hatanodai, Shinagawa, Tokyo, 142-8555, Japan
| | - Masahiro Chatani
- Department of Pharmacology, Graduate School of Dentistry, Showa University, 1-5-8 Hatanodai, Shinagawa, Tokyo, 142-8555, Japan; Pharmacological Research Center, Showa University, 1-5-8 Hatanodai, Shinagawa, Tokyo, 142-8555, Japan
| | - Akiko Karakawa
- Department of Pharmacology, Graduate School of Dentistry, Showa University, 1-5-8 Hatanodai, Shinagawa, Tokyo, 142-8555, Japan; Pharmacological Research Center, Showa University, 1-5-8 Hatanodai, Shinagawa, Tokyo, 142-8555, Japan
| | - Kai Otake
- Department of Pharmacology, Graduate School of Dentistry, Showa University, 1-5-8 Hatanodai, Shinagawa, Tokyo, 142-8555, Japan; Pharmacological Research Center, Showa University, 1-5-8 Hatanodai, Shinagawa, Tokyo, 142-8555, Japan; Department of Endodontology, Graduate School of Dentistry, Showa University, 2-1-1 Kitasenzoku, Ota, Tokyo, 145-8515, Japan
| | - Hidemitsu Sugiki
- Department of Pharmacology, School of Dentistry, Showa University, 1-5-8 Hatanodai, Shinagawa, Tokyo, 142-8555, Japan
| | - Nobuhiro Sakai
- Department of Dental Education, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa, Tokyo, 142-8555, Japan
| | - Yasubumi Maruoka
- Totsuka Kyoritsu Daini Hospital, 579-1 Totsuka, Yokohama, Kanagawa, 244-0817, Japan
| | - Mie Myers
- Department of Medical and Dental Cooperative Dentistry, School of Dentistry, Showa University, 2-1-1 Kitasenzoku, Ota, Tokyo, 145-8515, Japan
| | - Masamichi Takami
- Department of Pharmacology, Graduate School of Dentistry, Showa University, 1-5-8 Hatanodai, Shinagawa, Tokyo, 142-8555, Japan; Pharmacological Research Center, Showa University, 1-5-8 Hatanodai, Shinagawa, Tokyo, 142-8555, Japan.
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Wang C, Zeng R, Li Y, He R. Cirsilineol inhibits RANKL-induced osteoclast activity and ovariectomy-induced bone loss via NF-κb/ERK/p38 signaling pathways. Chin Med 2024; 19:69. [PMID: 38745234 PMCID: PMC11095037 DOI: 10.1186/s13020-024-00938-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 05/01/2024] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Postmenopausal osteoporosis is a chronic metabolic bone disease caused by excessive osteoclast formation and function. Targeting osteoclast differentiation and activity can modulate bone resorption and alleviate osteoporosis. Cirsilineol, an active constituent of Vestita Wall, has shown numerous biological activities and has been used to treat many metabolic diseases. However, whether cirsilineol inhibits osteoclast activity and prevents postmenopausal osteoporosis still remain unknown. MATERIALS AND METHODS Primary bone marrow macrophages (BMMs) and RAW264.7 cells were used. Osteoclast activity was measured by TRAP staining, F-actin staining, and bone resorption assay after BMMs were treated with cirsilineol at concentrations of 0, 1, 2.5 and 5 µM. RT-PCR and western blotting were performed to evaluate the expression of osteoclast-related genes. In addition, female C57BL/6 mice underwent OVX surgery and were treated with cirsilineol (20 mg/kg) to demonstrate the effect of cirsilineol on osteoporosis. RESULTS Cirsilineol significantly inhibited receptor activator of nuclear factor-kappa B ligand (RANKL)-induced osteoclast differentiation in a concentration- and time-dependent manner, respectively. Additionally, cirsilineol inhibited F-actin ring formation, thus reducing the activation of bone resorption ability. Cirsilineol suppressed the expression of osteoclast-related genes and proteins via blocking nuclear factor (NF)-κb, ERK, and p38 signaling cascades. More importantly, cirsilineol treatment in mice with osteoporosis alleviated osteoclasts hyperactivation and bone mass loss caused by estrogen depletion. CONCLUSION In this study, the protective effect of cirsilineol on osteoporosis has been investigated for the first time. In conclusion, our findings prove the inhibitory effect of cirsilineol on osteoclast activity via NF-κb/ERK/p38 signaling pathways and strongapplication of cirsilineol can be proposed as a potential therapeutic strategy.
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Affiliation(s)
- Cong Wang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
- Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang, People's Republic of China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang, People's Republic of China
| | - Rong Zeng
- Pain Management, YiChun People's Hospital, Yichun, Jiangxi, People's Republic of China
| | - Yong Li
- Department of Orthopedics, Qingtian People's Hospital, Lishui, Zhejiang, People's Republic of China
| | - Rongxin He
- Department of Orthopedic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China.
- Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, People's Republic of China.
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang, People's Republic of China.
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang, People's Republic of China.
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3
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Changkhaokham B, Suamphan S, Jitpukdeebodintra S, Leethanakul C. Effects of continuous and released compressive force on osteoclastogenesis invitro. J Oral Biol Craniofac Res 2024; 14:164-168. [PMID: 38380224 PMCID: PMC10876609 DOI: 10.1016/j.jobcr.2024.01.015] [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: 02/17/2023] [Revised: 07/30/2023] [Accepted: 01/31/2024] [Indexed: 02/22/2024] Open
Abstract
Objective Compressive force has been found to be catabolic to alveolar bone during orthodontic tooth movement. This study quantified the fusion of mononuclear RAW 264.7 cells (a murine osteoclastic-like cell line) into multinucleated osteoclasts under a hydrostatic pressure-generated mechanical compression-the new model of various magnitudes and durations. Methods RAW 264.7 cells were subjected to 0.3, 0.6 or 0.9 g/cm2 of compressive force by an acrylic cylinder custom-made by laser cutting or no compressive force for 4 days during osteoclastogenic induction. TRAP-positive multinucleated cells were quantified. For the release from force experiment, osteoclastogenesis was induced by 0.6 g/cm2 mechanical stimuli for 0, 1, 2, 3 or 4 days. Cell viability, TRAP-positive multinucleated cells, DCSTAMP and Cathepsin K (CTSK) gene expression were evaluated 4 days after release from force. Results Compressive force at 0.6 and 0.9 g/cm2 significantly increase the number of TRAP-positive multinucleated cells (P < 0.05). Release from continuous mechanical compression after 4 days significantly elevated the number of TRAP-positive multinucleated cells and DCSTAMP and CTSK mRNA expression, with no adverse effects on cell viability (P < 0.05). Conclusions Continuous stimulation with compressive force induced osteoclastogenesis in RAW 264.7 cells by enhancing DCSTAMP and CTSK expression, which provides new understanding of bone remodeling during orthodontic treatment.
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Affiliation(s)
| | - Sumit Suamphan
- School of Dentistry, Maefahluang University, Chiangrai, 57100, Thailand
| | - Suwanna Jitpukdeebodintra
- Department of Oral Biology, Faculty of Dentistry, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
| | - Chidchanok Leethanakul
- Department of Preventive Dentistry, Faculty of Dentistry, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
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Zheng H, Liu Y, Deng Y, Li Y, Liu S, Yang Y, Qiu Y, Li B, Sheng W, Liu J, Peng C, Wang W, Yu H. Recent advances of NFATc1 in rheumatoid arthritis-related bone destruction: mechanisms and potential therapeutic targets. Mol Med 2024; 30:20. [PMID: 38310228 PMCID: PMC10838448 DOI: 10.1186/s10020-024-00788-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 01/22/2024] [Indexed: 02/05/2024] Open
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune inflammatory disease characterized by inflammation of the synovial tissue and joint bone destruction, often leading to significant disability. The main pathological manifestation of joint deformity in RA patients is bone destruction, which occurs due to the differentiation and proliferation of osteoclasts. The transcription factor nuclear factor-activated T cell 1 (NFATc1) plays a crucial role in this process. The regulation of NFATc1 in osteoclast differentiation is influenced by three main factors. Firstly, NFATc1 is activated through the upstream nuclear factor kappa-B ligand (RANKL)/RANK signaling pathway. Secondly, the Ca2+-related co-stimulatory signaling pathway amplifies NFATc1 activity. Finally, negative regulation of NFATc1 occurs through the action of cytokines such as B-cell Lymphoma 6 (Bcl-6), interferon regulatory factor 8 (IRF8), MAF basic leucine zipper transcription factor B (MafB), and LIM homeobox 2 (Lhx2). These three phases collectively govern NFATc1 transcription and subsequently affect the expression of downstream target genes including TRAF6 and NF-κB. Ultimately, this intricate regulatory network mediates osteoclast differentiation, fusion, and the degradation of both organic and inorganic components of the bone matrix. This review provides a comprehensive summary of recent advances in understanding the mechanism of NFATc1 in the context of RA-related bone destruction and discusses potential therapeutic agents that target NFATc1, with the aim of offering valuable insights for future research in the field of RA. To assess their potential as therapeutic agents for RA, we conducted a drug-like analysis of potential drugs with precise structures.
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Affiliation(s)
- Hao Zheng
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Innovative Materia Medica Research Institute, Hunan University of Chinese Medicine, Changsha, 410208, China
| | - Yuexuan Liu
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Innovative Materia Medica Research Institute, Hunan University of Chinese Medicine, Changsha, 410208, China
| | - Yasi Deng
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Innovative Materia Medica Research Institute, Hunan University of Chinese Medicine, Changsha, 410208, China
| | - Yunzhe Li
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Innovative Materia Medica Research Institute, Hunan University of Chinese Medicine, Changsha, 410208, China
| | - Shiqi Liu
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Innovative Materia Medica Research Institute, Hunan University of Chinese Medicine, Changsha, 410208, China
| | - Yong Yang
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Innovative Materia Medica Research Institute, Hunan University of Chinese Medicine, Changsha, 410208, China
| | - Yun Qiu
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Innovative Materia Medica Research Institute, Hunan University of Chinese Medicine, Changsha, 410208, China
| | - Bin Li
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Innovative Materia Medica Research Institute, Hunan University of Chinese Medicine, Changsha, 410208, China
| | - Wenbing Sheng
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Innovative Materia Medica Research Institute, Hunan University of Chinese Medicine, Changsha, 410208, China
| | - Jinzhi Liu
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Innovative Materia Medica Research Institute, Hunan University of Chinese Medicine, Changsha, 410208, China
| | - Caiyun Peng
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Innovative Materia Medica Research Institute, Hunan University of Chinese Medicine, Changsha, 410208, China
| | - Wei Wang
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Innovative Materia Medica Research Institute, Hunan University of Chinese Medicine, Changsha, 410208, China.
| | - Huanghe Yu
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Innovative Materia Medica Research Institute, Hunan University of Chinese Medicine, Changsha, 410208, China.
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Ma XX, Zhou XY, Feng MG, Ji YT, Song FF, Tang QC, He Q, Zhang YF. Dual Role of IGF2BP2 in Osteoimmunomodulation during Periodontitis. J Dent Res 2024; 103:208-217. [PMID: 38193302 DOI: 10.1177/00220345231216115] [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] [Indexed: 01/10/2024] Open
Abstract
Periodontitis is a complex disease characterized by distinct inflammatory stages, with a peak of inflammation in the early phase and less prominent inflammation in the advanced phase. The insulin-like growth factor 2-binding proteins 2 (IGF2BP2) has recently been identified as a new m6A reader that protects m6A-modified messenger RNAs (mRNAs) from decay, thus participating in multiple biological processes. However, its role in periodontitis remains unexplored. Here, we investigated the role of IGF2BP2 in inflammation and osteoclast differentiation using a ligature-induced periodontitis model. Our findings revealed that IGF2BP2 responded to bacterial-induced inflammatory stimuli and exhibited differential expression patterns in early and advanced periodontitis stages, suggesting its dual role in regulating this disease. Depletion of Igf2bp2 contributed to increased release of inflammatory cytokines, thereby exacerbating periodontitis after 3 d of ligature while suppressing osteoclast differentiation and ameliorating periodontitis after 14 d of ligature. Mechanistically, we demonstrated that IGF2BP2 directly interacted with Cd5l and Cd36 mRNA via RNA immunoprecipitation assay. Overexpression of CD36 or recombinant CD5L rescued the osteoclast differentiation ability of Igf2bp2-null cells upon lipopolysaccharide stimulus, and thus the downregulation of Cd36 and Cd5l effectively reversed periodontitis in the advanced stage. Altogether, this study deepens our understanding of the potential mechanistic link among the dysregulated m6A reader IGF2BP2, immunomodulation, and osteoclastogenesis during different stages of periodontitis.
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Affiliation(s)
- X X Ma
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - X Y Zhou
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - M G Feng
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Y T Ji
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - F F Song
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Q C Tang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Q He
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Y F Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Medical Research Institute, School of Medicine, Wuhan University, Wuhan, China
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Lee YJ, Ahn JC, Oh CH. Oxyresveratrol attenuates bone resorption by inhibiting the mitogen-activated protein kinase pathway in ovariectomized rats. Nutr Metab (Lond) 2024; 21:7. [PMID: 38243227 PMCID: PMC10799353 DOI: 10.1186/s12986-024-00781-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 01/15/2024] [Indexed: 01/21/2024] Open
Abstract
BACKGROUND Bone is continuously produced by osteoblasts and resorbed by osteoclasts to maintain homeostasis. Impaired bone resorption by osteoclasts causes bone diseases such as osteoporosis and arthritis. Most pharmacological treatment of osteoporosis focuses on inhibiting osteoclast differentiation, often to restore osteoclast/osteoclast balance. However, recent osteoporosis treatments have various side effects. According to a recent study, resveratrol, known as a stilbenoid family, is known to increase bone density, and the osteoclast inhibitory effect was confirmed using oxyresveratrol, a stilbenoid family. Here, we investigated the effect of oxyresveratrol on osteoclast differentiation and an ovariectomized mouse model. METHODS Mouse leukemia monocyte/macrophage cell line RAW 264.7 was treated with oxyresveratrol, and cell cytotoxicity was confirmed by measuring MTT assay. Tartrate-resistant acid phosphatase (TRAP), an enzyme marker for osteoclasts, was confirmed by staining. In addition, osteoclast differentiation markers and MAPK-related markers were confirmed at the mRNA level and protein expression. The effect of oxyresveratrol was confirmed using ovariectomized mice. Deoxypyridinoline (DPD) was measured using mouse urine and TRAP activity was observed using serum. Bone mineral density was also measured using Micro-CT. RESULTS The polyphenol oxyresveratrol inhibited receptor activator of nuclear factor kappa-Β ligand (RANKL)-induced osteoclast differentiation of RAW 264.7 cells. Furthermore, oxyresveratrol inhibited TRAP activity and actin-ring formation. Moreover, oxyresveratrol suppressed the phosphorylation of the RANKL-induced mitogen-activated protein kinases (MAPKs) p38, JNK, and ERK and significantly reduced the expression of bone differentiation markers (NFATc1, cathepsin K, and TRAP). CONCLUSION Oxyresveratrol inhibits osteoclast differentiation via MAPK and increases bone density in ovariectomized rats, suggesting it has therapeutic potential for bone diseases such as osteoporosis. We confirmed the osteoporosis prevention effect of OR in Raw 264.7 cells, and future studies should confirm the effect of OR using rat bone marrow-derived cells.
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Affiliation(s)
- Yea-Jin Lee
- Department of Medicine, Dankook University, Cheonan-si, 31116, Republic of Korea
- Medical Laser Research Center, Graduate School of Medicine, Dankook University, Cheonan-si, 31116, Republic of Korea
- Department of Photobiology, College of Medicine, Dankook University, Cheonan-si, 31116, Republic of Korea
| | - Jin-Chul Ahn
- Department of Medicine, Dankook University, Cheonan-si, 31116, Republic of Korea.
- Medical Laser Research Center, Graduate School of Medicine, Dankook University, Cheonan-si, 31116, Republic of Korea.
- Department of Photobiology, College of Medicine, Dankook University, Cheonan-si, 31116, Republic of Korea.
| | - Chung-Hun Oh
- Medical Laser Research Center, Graduate School of Medicine, Dankook University, Cheonan-si, 31116, Republic of Korea.
- Department of Oral Physiology, College of Dentistry, Dankook University, Cheonan-si, 31116, Republic of Korea.
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Xu Y, Li X, Zhang S, Tang M, Yu R, Liao X, Li Z, Li M, Chen S, Qian W, Song L, Ke Z, Li J. CircMMP2(6,7) Cooperates with β-Catenin and PRMT5 to Disrupt Bone Homeostasis and Promote Breast Cancer Bone Metastasis. Cancer Res 2024; 84:328-343. [PMID: 37963200 DOI: 10.1158/0008-5472.can-23-1899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 09/06/2023] [Accepted: 11/07/2023] [Indexed: 11/16/2023]
Abstract
The bone is the most common site of distant metastasis of breast cancer, which leads to serious skeletal complications and mortality. Understanding the mechanisms underlying breast cancer bone metastasis would provide potential strategies for the prevention and treatment of breast cancer bone metastasis. In this study, we identified a circular RNA that we named circMMP2(6,7) that was significantly upregulated in bone metastatic breast cancer tissues and correlated with breast cancer-bone metastasis. Upregulation of circMMP2(6,7) dramatically enhanced the metastatic capability of breast cancer cells to the bone via inducing bone metastatic niche formation by disrupting bone homeostasis. Mechanistically, circMMP2(6,7) specifically bound to the promoters of bone-remodeling factors calcium-binding protein S100A4 and carbohydrate-binding protein LGALS3 and formed a complex with β-catenin and arginine methyltransferase PRMT5, eliciting histone H3R2me1/H3R2me2s-induced transcriptional activation. Treatment with GSK591, a selective PRMT5 inhibitor, effectively inhibited circMMP2(6,7)/β-catenin/PRMT5 complex-induced breast cancer bone metastasis. These findings reveal a role for circMMP2(6,7) in bone homeostasis disruption and shed light on the mechanisms driving breast cancer bone metastasis. SIGNIFICANCE Upregulation of bone-remodeling factors S100A4 and LGALS3 mediated by a circMMP2(6,7)/β-catenin/PRMT5 complex generates a niche that supports breast cancer bone metastasis, identifying PRMT5 as a promising target for treating metastasis.
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Affiliation(s)
- Yingru Xu
- Molecular Diagnosis and Gene Testing Center, The First Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Medical College of Jiaying University, Meizhou, China
| | - Xincheng Li
- Molecular Diagnosis and Gene Testing Center, The First Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Department of Biochemistry, Zhongshan School of Medicine Sun Yat-sen University Guangzhou, China
| | - Shuxia Zhang
- Department of Oncology, The First Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Miaoling Tang
- Department of Oncology, The First Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Ruyuan Yu
- Molecular Diagnosis and Gene Testing Center, The First Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Medical College of Jiaying University, Meizhou, China
| | - Xinyi Liao
- Molecular Diagnosis and Gene Testing Center, The First Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Department of Biochemistry, Zhongshan School of Medicine Sun Yat-sen University Guangzhou, China
| | - Ziwen Li
- Molecular Diagnosis and Gene Testing Center, The First Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Department of Biochemistry, Zhongshan School of Medicine Sun Yat-sen University Guangzhou, China
| | - Man Li
- Molecular Diagnosis and Gene Testing Center, The First Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Department of Biochemistry, Zhongshan School of Medicine Sun Yat-sen University Guangzhou, China
| | - Suwen Chen
- Molecular Diagnosis and Gene Testing Center, The First Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Department of Biochemistry, Zhongshan School of Medicine Sun Yat-sen University Guangzhou, China
| | - Wanying Qian
- Molecular Diagnosis and Gene Testing Center, The First Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Department of Biochemistry, Zhongshan School of Medicine Sun Yat-sen University Guangzhou, China
| | - Libing Song
- State Key Laboratory of Oncology in South China Collaborative Innovation Center for Cancer Medicine Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Zunfu Ke
- Molecular Diagnosis and Gene Testing Center, The First Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Jun Li
- Molecular Diagnosis and Gene Testing Center, The First Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Department of Biochemistry, Zhongshan School of Medicine Sun Yat-sen University Guangzhou, China
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Jiang T, Xia T, Qiao F, Wang N, Jiang Y, Xin H. Role and Regulation of Transcription Factors in Osteoclastogenesis. Int J Mol Sci 2023; 24:16175. [PMID: 38003376 PMCID: PMC10671247 DOI: 10.3390/ijms242216175] [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: 09/24/2023] [Revised: 11/01/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
Bones serve mechanical and defensive functions, as well as regulating the balance of calcium ions and housing bone marrow.. The qualities of bones do not remain constant. Instead, they fluctuate throughout life, with functions increasing in some situations while deteriorating in others. The synchronization of osteoblast-mediated bone formation and osteoclast-mediated bone resorption is critical for maintaining bone mass and microstructure integrity in a steady state. This equilibrium, however, can be disrupted by a variety of bone pathologies. Excessive osteoclast differentiation can result in osteoporosis, Paget's disease, osteolytic bone metastases, and rheumatoid arthritis, all of which can adversely affect people's health. Osteoclast differentiation is regulated by transcription factors NFATc1, MITF, C/EBPα, PU.1, NF-κB, and c-Fos. The transcriptional activity of osteoclasts is largely influenced by developmental and environmental signals with the involvement of co-factors, RNAs, epigenetics, systemic factors, and the microenvironment. In this paper, we review these themes in regard to transcriptional regulation in osteoclastogenesis.
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Affiliation(s)
- Tao Jiang
- School of Pharmacy, Naval Medical University, Shanghai 200433, China; (T.J.); (T.X.); (F.Q.)
- School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Tianshuang Xia
- School of Pharmacy, Naval Medical University, Shanghai 200433, China; (T.J.); (T.X.); (F.Q.)
| | - Fangliang Qiao
- School of Pharmacy, Naval Medical University, Shanghai 200433, China; (T.J.); (T.X.); (F.Q.)
| | - Nani Wang
- Department of Medicine, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou 310007, China;
| | - Yiping Jiang
- School of Pharmacy, Naval Medical University, Shanghai 200433, China; (T.J.); (T.X.); (F.Q.)
| | - Hailiang Xin
- School of Pharmacy, Naval Medical University, Shanghai 200433, China; (T.J.); (T.X.); (F.Q.)
- School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
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9
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Zhang Y, Nong H, Bai Y, Zhou Q, Zhang Q, Liu M, Liu P, Zeng G, Zong S. Conditional knockout of PDK1 in osteoclasts suppressed osteoclastogenesis and ameliorated prostate cancer-induced osteolysis in murine model. Eur J Med Res 2023; 28:433. [PMID: 37828580 PMCID: PMC10571267 DOI: 10.1186/s40001-023-01425-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 10/03/2023] [Indexed: 10/14/2023] Open
Abstract
BACKGROUND The development and maintenance of normal bone tissue is maintained by balanced communication between osteoblasts and osteoclasts. The invasion of cancer cells disrupts this balance, leading to osteolysis. As the only bone resorbing cells in vivo, osteoclasts play important roles in cancer-induced osteolysis. However, the role of 3-phosphoinositide-dependent protein kinase-1 (PDK1) in osteoclast resorption remains unclear. METHODS In our study, we used a receptor activator of nuclear factor-kappa B (RANK) promoter-driven Cre-LoxP system to conditionally delete the PDK1 gene in osteoclasts in mice. We observed the effect of osteoclast-specific knockout of PDK1 on prostate cancer-induced osteolysis. Bone marrow-derived macrophage cells (BMMs) were extracted and induced to differentiate osteoclasts in vitro to explore the role of PDK1 in osteoclasts. RESULTS In this study, we found that PDK1 conditional knockout (cKO) mice exhibited smaller body sizes when compared to the wild-type (WT) mice. Moreover, deletion of PDK1 in osteoclasts ameliorated osteolysis and rPDK1educed bone resorption markers in the murine model of prostate cancer-induced osteolysis. In vivo, we discovered that osteoclast-specific knockout of suppressed RANKL-induced osteoclastogenesis, bone resorption function, and osteoclast-specific gene expression (Ctsk, TRAP, MMP-9, NFATc1). Western blot analyses of RANKL-induced signaling pathways showed that conditional knockout of PDK1 in osteoclasts inhibited the early nuclear factor κB (NF-κB) activation, which consequently suppressed the downstream induction of NFATc1. CONCLUSION These findings demonstrated that PDK1 performs an important role in osteoclastogenesis and prostate cancer-induced osteolysis by modulating the PDK1/AKT/NF-κB signaling pathway.
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Affiliation(s)
- Yanan Zhang
- Guangxi Collaborative Innovation Center for Biomedicine, Guangxi Medical University, Nanning, China
- Department of Spine Osteopathia, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Haibin Nong
- Department of Spine Osteopathia, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yiguang Bai
- Department of Spine Osteopathia, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Department of Orthopaedics, Nanchong Central Hospital, The Second Clinical Institute of North Sichuan Medical College, Nanchong, China
| | - Quan Zhou
- Guangxi Collaborative Innovation Center for Biomedicine, Guangxi Medical University, Nanning, China
| | - Qiong Zhang
- College of Public Hygiene of Guangxi Medical University, Nanning, China
| | - Mingfu Liu
- Department of Spine Osteopathia, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Pan Liu
- Department of Spine Osteopathia, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Gaofeng Zeng
- College of Public Hygiene of Guangxi Medical University, Nanning, China.
| | - Shaohui Zong
- Department of Spine Osteopathia, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.
- Research Centre for Regenerative Medicine and Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, Guangxi, China.
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10
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Tanimoto A, Yamaguchi Y, Kadowaki T, Sakai E, Oyakawa S, Ono Y, Yoshida N, Tsukuba T. Rab44 negatively regulates myoblast differentiation by controlling fusogenic protein transport and mTORC1 signaling. J Cell Biochem 2023; 124:1486-1502. [PMID: 37566644 DOI: 10.1002/jcb.30457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 06/27/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023]
Abstract
Skeletal muscle is composed of multinucleated myotubes formed by the fusion of mononucleated myoblasts. Skeletal muscle differentiation, termed as myogenesis, have been investigated using the mouse skeletal myoblast cell line C2C12. It has been reported that several "small" Rab proteins, major membrane-trafficking regulators, possibly regulate membrane protein transport in C2C12 cells; however, the role of Rab proteins in myogenesis remains unexplored. Rab44, a member of "large" Rab GTPases, has recently been identified as a negative regulator of osteoclast differentiation. In this study, using C2C12 cells, we found that Rab44 expression was upregulated during myoblast differentiation into myotubes. Knockdown of Rab44 enhanced myoblast differentiation and myotube formation. Consistent with these results, Rab44 knockdown in myoblasts increased expression levels of several myogenic marker genes. Rab44 knockdown increased the surface accumulation of myomaker and myomixer, two fusogenic proteins required for multinucleation, implying enhanced cell fusion. Conversely, Rab44 overexpression inhibited myoblast differentiation and tube formation, accompanied by decreased expression of some myogenic markers. Furthermore, Rab44 was found to be predominantly localized in lysosomes, and Rab44 overexpression altered the number and size of lysosomes. Considering the underlying molecular mechanism, Rab44 overexpression impaired the signaling pathway of the mechanistic target of rapamycin complex1 (mTORC1) in C2C12 cells. Namely, phosphorylation levels of mTORC1 and downstream mTORC1 substrates, such as S6 and P70-S6K, were notably lower in Rab44 overexpressing cells than those in control cells. These results indicate that Rab44 negatively regulates myoblast differentiation into myotubes by controlling fusogenic protein transport and mTORC1 signaling.
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Affiliation(s)
- Ayuko Tanimoto
- Department of Dental Pharmacology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Yu Yamaguchi
- Department of Dental Pharmacology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Tomoko Kadowaki
- Department of Frontier Oral Science, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Eiko Sakai
- Department of Dental Pharmacology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Shun Oyakawa
- Department of Dental Pharmacology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Yusuke Ono
- Department of Muscle Development and Regeneration, Kumamoto University, Kumamoto, Japan
| | - Noriaki Yoshida
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Takayuki Tsukuba
- Department of Dental Pharmacology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
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11
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Ricchiuto S, Palumbo R, Lami F, Gavioli F, Caselli L, Montanari M, Zappavigna V, Anesi A, Zanocco-Marani T, Grande A. The Capacity of Magnesium to Induce Osteoclast Differentiation Is Greatly Enhanced by the Presence of Zoledronate. BIOLOGY 2023; 12:1297. [PMID: 37887007 PMCID: PMC10604702 DOI: 10.3390/biology12101297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/25/2023] [Accepted: 09/28/2023] [Indexed: 10/28/2023]
Abstract
Bisphosphonates (BPs) are successfully used to cure a number of diseases characterized by a metabolic reduction in bone density, such as Osteoporosis, or a neoplastic destruction of bone tissue, such as multiple myeloma and bone metastases. These drugs exert their therapeutic effect by causing a systemic osteoclast depletion that, in turn, is responsible for reduced bone resorption. Unfortunately, in addition to their beneficial activity, BPs can also determine a frightening side effect known as osteonecrosis of the jaw (ONJ). It is generally believed that the inability of osteoclasts to dispose of inflamed/necrotic bone represents the main physiopathological aspect of ONJ. In principle, a therapeutic strategy able to elicit a local re-activation of osteoclast production could counteract ONJ and promote the healing of its lesions. Using an experimental model of Vitamin D3-dependent osteoclastogenesis, we have previously demonstrated that Magnesium is a powerful inducer of osteoclast differentiation. Here we show that, surprisingly, this effect is greatly enhanced by the presence of Zoledronate, chosen for our study because it is the most effective and dangerous of the BPs. This finding allows us to hypothesize that Magnesium might play an important role in the topical therapy of ONJ.
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Affiliation(s)
- Silvia Ricchiuto
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (S.R.)
| | - Rossella Palumbo
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (S.R.)
| | - Francesca Lami
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (S.R.)
| | - Francesca Gavioli
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (S.R.)
| | - Lorenzo Caselli
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (S.R.)
| | - Monica Montanari
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Vincenzo Zappavigna
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Alexandre Anesi
- Department of Medical and Surgical Sciences for Children & Adults, University of Modena and Reggio Emilia, 41124 Modena, Italy
| | - Tommaso Zanocco-Marani
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Alexis Grande
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (S.R.)
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12
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Patel K, Mangu SR, Sukhdeo SV, Sharan K. Sesamol improves bone mass in ovary intact growing and adult rats but accelerates bone deterioration in the ovariectomized rats. J Nutr Biochem 2023:109384. [PMID: 37209954 DOI: 10.1016/j.jnutbio.2023.109384] [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: 12/16/2022] [Revised: 05/03/2023] [Accepted: 05/15/2023] [Indexed: 05/22/2023]
Abstract
Sesamol, an active component in sesame seeds, is known for its health benefits. However, its effect on bone metabolism remains unexplored. The present study aims to investigate the effect of sesamol on growing, adult and osteoporotic skeleton and its mechanism of action. Sesamol at various doses were administered orally to growing, ovariectomized, and ovary-intact rats. Alterations in bone parameters were examined using micro-CT and histological studies. Western blot and mRNA expression from long bones were performed. We further evaluated the effect of sesamol on osteoblast and osteoclast function and its mode of action in the cell culture system. These data showed that sesamol was able to promote peak bone mass in growing rats. However, sesamol had the opposite effect in ovariectomized rats, evident from gross deterioration of trabecular and cortical microarchitecture. Concurrently, it improved the bone mass in adult rats. In vitro results revealed that sesamol enhances the bone formation by stimulating osteoblast differentiation through MAPK, AKT, and BMP-2 signaling. In contrast, it enhances osteoclast differentiation and expression of osteoclast-specific genes in osteoclast differentiation medium. Interestingly, in presence of estrogen, the effect reversed and sesamol decreased osteoclast differentiation, in vitro. Sesamol improves bone microarchitecture in growing and ovary-intact rats, whereas it enhances the bone deterioration in ovariectomized rats. While sesamol promotes bone formation, its opposing effect on the skeleton can be attributed to its dual effect on osteoclastogenesis in presence and absence of estrogen. These findings in the preclinical context suggests a special attention towards the detrimental effect of sesamol in postmenopausal women.
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Affiliation(s)
- Kalpana Patel
- Department of Molecular Nutrition, CSIR-Central Food Technological Research Institute, Mysuru, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Svvs Ravi Mangu
- Department of Molecular Nutrition, CSIR-Central Food Technological Research Institute, Mysuru, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Shinde Vijay Sukhdeo
- Department of Meat and Marine Sciences, CSIR- Central Food Technological Research Institute, Mysuru, India
| | - Kunal Sharan
- Department of Molecular Nutrition, CSIR-Central Food Technological Research Institute, Mysuru, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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13
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Niu Z, Xu S, Zhang J, Zou Z, Ren L, Liu X, Zhang S, Zou H, Hu X, Wang J, Zhang L, Zhou Y, Song Z. Bioinformatic analysis of the S protein of human respiratory coronavirus. Mol Phylogenet Evol 2023; 181:107704. [PMID: 36657625 PMCID: PMC9840983 DOI: 10.1016/j.ympev.2023.107704] [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: 05/04/2022] [Revised: 10/13/2022] [Accepted: 01/06/2023] [Indexed: 01/18/2023]
Abstract
The present study aimed to apply bioinformatic methods to analyze the structure of the S protein of human respiratory coronaviruses, including severe respiratory disease syndrome coronavirus (SARS-CoV), Middle East respiratory syndrome coronavirus (MERS-CoV), human coronavirus HKU1 (HCoV-HKU1), and severe respiratory disease syndrome coronavirus type 2 (SARS-CoV-2). We predicted and analyzed the physicochemical properties, hydrophilicity and hydrophobicity, transmembrane regions, signal peptides, phosphorylation and glycosylation sites, epitopes, functional domains, and motifs of the S proteins of human respiratory coronaviruses. All four S proteins contain a transmembrane region, which enables them to bind to host cell surface receptors. All four S proteins contain a signal peptide, phosphorylation sites, glycosylation sites, and epitopes. The predicted phosphorylation sites might mediate S protein activation, the glycosylation sites might affect the cellular orientation of the virus, and the predicted epitopes might have implications for the design of antiviral inhibitors. The S proteins of all four viruses have two structural domains, S1 (C-terminal and N-terminal domains) and S2 (homology region 1 and 2). Our bioinformatic analysis of the structural and functional domains of human respiratory coronavirus S proteins provides a basis for future research to develop broad-spectrum antiviral drugs, vaccines, and antibodies.
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Affiliation(s)
- Zheng Niu
- College of Veterinary Medicine, Southwest University, Chongqing, China; College of Veterinary Medicine, Northwest A&F University, Shaanxi, China.
| | - ShaSha Xu
- College of Veterinary Medicine, Southwest University, Chongqing, China.
| | - JingYi Zhang
- College of Veterinary Medicine, Southwest University, Chongqing, China.
| | - ZhuoLan Zou
- College of Veterinary Medicine, Southwest University, Chongqing, China; Immunology Research Center, Medical Research Institute, Southwest University, Chongqing, China
| | - LiXin Ren
- College of Veterinary Medicine, Southwest University, Chongqing, China.
| | - XiangYang Liu
- College of Veterinary Medicine, Southwest University, Chongqing, China; College of Veterinary Medicine, Xinjiang Agricultural University, Ürümqi, China.
| | - ShuJuan Zhang
- College of Veterinary Medicine, Southwest University, Chongqing, China.
| | - Hong Zou
- College of Veterinary Medicine, Southwest University, Chongqing, China.
| | - Xia Hu
- College of Veterinary Medicine, Southwest University, Chongqing, China.
| | - Jing Wang
- College of Veterinary Medicine, Southwest University, Chongqing, China.
| | - Li Zhang
- College of Veterinary Medicine, Southwest University, Chongqing, China.
| | - Yang Zhou
- College of Veterinary Medicine, Southwest University, Chongqing, China; College of Veterinary Medicine, Xinjiang Agricultural University, Ürümqi, China.
| | - ZhenHui Song
- College of Veterinary Medicine, Southwest University, Chongqing, China; Immunology Research Center, Medical Research Institute, Southwest University, Chongqing, China.
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14
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Maciel GBM, Maciel RM, Danesi CC. Bone cells and their role in physiological remodeling. Mol Biol Rep 2023; 50:2857-2863. [PMID: 36609750 DOI: 10.1007/s11033-022-08190-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 12/07/2022] [Indexed: 01/09/2023]
Abstract
PURPOSE This work compiles the characteristics of bone cells involved in the physiological bone remodeling. METHODS A narrative review of the literature was performed. RESULTS Remodeling is a different process from modeling. Remodeling allows old or damaged bone tissue to be renewed, ensuring the maintenance of bone fracture resistance, as well as maintaining calcium and phosphorus homeostasis. We present the role of osteoclasts, a multinucleated cell with hematopoietic origin responsible for resorbing bone. The formation of osteoclasts depends on the cytokines macrophage colony stimulating factor (M-CSF) and receptor activator of NF-kB ligand (RANKL) and can be blocked by osteoprotegerin. Furthermore, this review highlights the features of osteoblasts, polarized cubic cells of mesenchymal origin that deposit bone and also covers osteocytes and bone lining cells. This review presents the five fundamental phases of bone remodeling and addresses aspects of its regulation through hormones and growth factors. CONCLUSIONS Knowledge of the current concepts of physiological bone remodeling is necessary for the study of the different pathologies that affect the bone tissue and thus helps in the search for new therapies.
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Affiliation(s)
- Gabriel Bassan Marinho Maciel
- Postgraduate Program in Dental Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil. .,Department of Pathology, Federal University of Santa Maria, Av. Roraima, 1000, Santa Maria, 97015-900, RS, Brazil.
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15
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Ding M, Chen Z, Cho E, Park SW, Lee TH. Crucial Role of Lysine-Specific Histone Demethylase 1 in RANKL-Mediated Osteoclast Differentiation. Int J Mol Sci 2023; 24:3605. [PMID: 36835016 PMCID: PMC9967819 DOI: 10.3390/ijms24043605] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/07/2023] [Accepted: 02/08/2023] [Indexed: 02/17/2023] Open
Abstract
Epigenetic regulators are involved in osteoclast differentiation. This study proposes that the inhibitors of epigenetic regulators could be effective in the treatment of osteoporosis. This study identified GSK2879552, a lysine-specific histone demethylase 1 (LSD1) inhibitor, as a candidate for the treatment of osteoporosis from epigenetic modulator inhibitors. We investigate the function of LSD1 during RANKL-induced osteoclast formation. LSD1 small-molecule inhibitors effectively inhibit the RANKL-induced osteoclast differentiation in a dose-dependent manner. LSD1 gene knockout in macrophage cell line Raw 264.7 also inhibits RANKL-mediated osteoclastogenesis. LSD1-inhibitor-treated primary macrophage cells and LSD1 gene knockout Raw 264.7 cells failed to show actin ring formation. LSD1 inhibitors prevent the expression of RANKL-induced osteoclast-specific genes. They also downregulated the protein expression of osteoclast-related markers in osteoclastogeneses, such as Cathepsin K, c-Src, and NFATc1. Although LSD1 inhibitors were shown to reduce the in vitro demethylation activity of LSD1, they did not modulate the methylation of Histone 3 K4 and K9 during osteoclastogenesis. The ovariectomy (OVX)-induced osteoporosis model revealed that GSK2879552 slightly restores OVX-induced cortical bone loss. LSD1 can be employed as a positive regulator to promote osteoclast formation. Hence, inhibition of LSD1 activities is a potential target for preventing bone diseases characterized by excessive osteoclast activities.
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Affiliation(s)
- Mina Ding
- BioMedical Sciences Graduate Program (BMSGP), Chonnam National University, Gwangju 61186, Republic of Korea
| | - Zhihao Chen
- 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
| | - 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
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16
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Gu R, Liu H, Hu M, Zhu Y, Liu X, Wang F, Wu L, Song D, Liu Y. D-Mannose prevents bone loss under weightlessness. J Transl Med 2023; 21:8. [PMID: 36617569 PMCID: PMC9827691 DOI: 10.1186/s12967-022-03870-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 12/29/2022] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Astronauts undergo significant microgravity-induced bone loss during space missions, which has become one of the three major medical problems hindering human's long-term space flight. A risk-free and antiresorptive drug is urgently needed to prevent bone loss during space missions. D-mannose is a natural C-2 epimer of D-glucose and is abundant in cranberries. This study aimed to investigate the protective effects and potential mechanisms of D-mannose against bone loss under weightlessness. METHODS The hind legs of tail-suspended (TS) rats were used to mimic weightlessness on Earth. Rats were administered D-mannose intragastrically. The osteoclastogenic and osteogenic capacity of D-mannose in vitro and in vivo was analyzed by micro-computed tomography, biomechanical assessment, bone histology, serum markers of bone metabolism, cell proliferation assay, quantitative polymerase chain reaction, and western blotting. RNA-seq transcriptomic analysis was performed to detect the underlying mechanisms of D-mannose in bone protection. RESULTS The TS rats showed lower bone mineral density (BMD) and poorer bone morphological indices. D-mannose could improve BMD in TS rats. D-mannose inhibited osteoclast proliferation and fusion in vitro, without apparent effects on osteoblasts. RNA-seq transcriptomic analysis showed that D-mannose administration significantly inhibited the cell fusion molecule dendritic cell-specific transmembrane protein (DC-STAMP) and two indispensable transcription factors for osteoclast fusion (c-Fos and nuclear factor of activated T cells 1 [NFATc1]). Finally, TS rats tended to experience dysuria-related urinary tract infections (UTIs), which were suppressed by treatment with D-mannose. CONCLUSION D-mannose protected against bone loss and UTIs in rats under weightlessness. The bone protective effects of D-mannose were mediated by inhibiting osteoclast cell fusion. Our findings provide a potential strategy to protect against bone loss and UTIs during space missions.
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Affiliation(s)
- Ranli Gu
- grid.11135.370000 0001 2256 9319Department of Prosthodontics, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, 100081 China
| | - Hao Liu
- grid.11135.370000 0001 2256 9319The Central Laboratory, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, 100081 China
| | - Menglong Hu
- grid.11135.370000 0001 2256 9319Department of Prosthodontics, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, 100081 China
| | - Yuan Zhu
- grid.11135.370000 0001 2256 9319Department of Prosthodontics, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, 100081 China
| | - Xuenan Liu
- grid.11135.370000 0001 2256 9319Department of Prosthodontics, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, 100081 China
| | - Feilong Wang
- grid.11135.370000 0001 2256 9319Department of Prosthodontics, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, 100081 China
| | - Likun Wu
- grid.11135.370000 0001 2256 9319Department of Prosthodontics, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, 100081 China
| | - Danyang Song
- grid.11135.370000 0001 2256 9319Department of Prosthodontics, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, 100081 China
| | - Yunsong Liu
- grid.11135.370000 0001 2256 9319Department of Prosthodontics, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, 100081 China
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17
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Lee Y, Kantayos V, Kim JS, Rha ES, Son YJ, Baek SH. Inhibitory Effects of Protopanaxadiol-Producing Transgenic Rice Seed Extracts on RANKL-Induced Osteoclast Differentiation. LIFE (BASEL, SWITZERLAND) 2022; 12:life12111886. [PMID: 36431021 PMCID: PMC9694809 DOI: 10.3390/life12111886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 11/09/2022] [Accepted: 11/11/2022] [Indexed: 11/16/2022]
Abstract
(1) Background: Osteoporosis is a disease in which bones are weakened and fractured easily because of various factors. It is mainly observed in elderly and postmenopausal women, and it continues to carry high economic costs in aging societies. Normal bone maintains a healthy state through a balanced process of osteoclast suppression and osteoblast activation; (2) Methods: In this study, osteoclast inhibition was induced by inhibiting osteoclast differentiation using ginseng protopanaxadiol-enriched rice (PPD-rice) seed extract. To analyze the effect of PPD-rice extract on the inhibition of osteoclast differentiation, bone marrow macrophages extracted from mice were treated with PPD-rice and Dongjin seed (non-transformed rice) extracts and analyzed for the inhibition of osteoclast differentiation; (3) Results: The results illustrated that PPD-rice extract reduced the transcription and translation of NFATc1, a modulator of osteoclast formation, decreased the mRNA expression of various osteoclast differentiation marker genes, and reduced osteoclast activity. Moreover, the bone resorptive activity of osteoclasts was diminished by PPD-rice extract on Osteo Assay plates; (4) Conclusions: Based on these results, PPD-rice extract is a useful candidate therapeutic agent for suppressing osteoclasts, an important component of osteoporosis, and it could be used as an ingredient in health supplements.
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Affiliation(s)
- Yongjin Lee
- Department of Pharmacy, Sunchon National University, Suncheon 57922, Republic of Korea
| | - Vipada Kantayos
- Department of Agricultural Life Science, Sunchon National University, Suncheon 57922, Republic of Korea
| | - Jin-Suk Kim
- Department of Agricultural Life Science, Sunchon National University, Suncheon 57922, Republic of Korea
| | - Eui-Shik Rha
- Department of Agricultural Life Science, Sunchon National University, Suncheon 57922, Republic of Korea
| | - Young-Jin Son
- Department of Pharmacy, Sunchon National University, Suncheon 57922, Republic of Korea
- Correspondence: (Y.-J.S.); (S.-H.B.); Tel.: +82-61-750-3755 (Y.-J.S.); +82-61-750-3217 (S.-H.B.)
| | - So-Hyeon Baek
- Department of Agricultural Life Science, Sunchon National University, Suncheon 57922, Republic of Korea
- Correspondence: (Y.-J.S.); (S.-H.B.); Tel.: +82-61-750-3755 (Y.-J.S.); +82-61-750-3217 (S.-H.B.)
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Kovács OT, Tóth E, Ozohanics O, Soltész-Katona E, Marton N, Buzás EI, Hunyady L, Drahos L, Turu G, Nagy G. Proteomic Changes of Osteoclast Differentiation in Rheumatoid and Psoriatic Arthritis Reveal Functional Differences. Front Immunol 2022; 13:892970. [PMID: 35860269 PMCID: PMC9289121 DOI: 10.3389/fimmu.2022.892970] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 05/31/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundOsteoclasts play a crucial role in the maintenance, repair, and remodeling of bones of the adult vertebral skeleton due to their bone resorption capability. Rheumatoid arthritis (RA) and psoriatic arthritis (PsA) are associated with increased activity of osteoclasts.ObjectivesOur study aimed to investigate the dynamic proteomic changes during osteoclast differentiation in healthy donors, in RA, and PsA.MethodsBlood samples of healthy donors, RA, and PsA patients were collected, and monocytes were isolated and differentiated into osteoclasts in vitro using macrophage colony-stimulating factor (M-CSF) and receptor activator of nuclear factor κB ligand (RANK-L). Mass spectrometry-based proteomics was used to analyze proteins from cell lysates. The expression changes were analyzed with Gene Set Enrichment Analysis (GSEA).ResultsThe analysis of the proteomic changes revealed that during the differentiation of the human osteoclasts, expression of the proteins involved in metabolic activity, secretory function, and cell polarity is increased; by contrast, signaling pathways involved in the immune functions are downregulated. Interestingly, the differences between cells of healthy donors and RA/PsA patients are most pronounced after the final steps of differentiation to osteoclasts. In addition, both in RA and PsA the differentiation is characterized by decreased metabolic activity, associated with various immune pathway activities; furthermore by accelerated cytokine production in RA.ConclusionsOur results shed light on the characteristic proteomic changes during human osteoclast differentiation and expression differences in RA and PsA, which reveal important pathophysiological insights in both diseases.
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Affiliation(s)
- Orsolya Tünde Kovács
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, Budapest, Hungary
- Department of Physiology, Semmelweis University, Budapest, Hungary
| | - Eszter Tóth
- Institute of Organic Chemistry, Eötvös Loránd Research Network, Research Centre for Natural Sciences, Budapest, Hungary
| | - Olivér Ozohanics
- Department of Biochemistry, Semmelweis University, Budapest, Hungary
| | - Eszter Soltész-Katona
- Department of Physiology, Semmelweis University, Budapest, Hungary
- Eötvös Loránd Research Network and Semmelweis University (ELKH-SE) Laboratory of Molecular Physiology, Eötvös Loránd Research Network, Budapest, Hungary
| | - Nikolett Marton
- Department of Radiology, Medical Imaging Centre, Semmelweis University, Budapest, Hungary
| | - Edit Irén Buzás
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, Budapest, Hungary
- Eötvös Loránd Research Network and Semmelweis University (ELKH-SE) Immune-Proteogenomics Research Group, Budapest, Hungary
- Hungarian Centre of Excellence for Molecular Medicine - Semmelweis University (HCEMM-SU) Extracellular Vesicles Research Group, Budapest, Hungary
| | - László Hunyady
- Department of Physiology, Semmelweis University, Budapest, Hungary
- Eötvös Loránd Research Network and Semmelweis University (ELKH-SE) Laboratory of Molecular Physiology, Eötvös Loránd Research Network, Budapest, Hungary
- Institute of Enzymology, Eötvös Loránd Research Network, Research Centre for Natural Sciences, Budapest, Hungary
| | - László Drahos
- Institute of Organic Chemistry, Eötvös Loránd Research Network, Research Centre for Natural Sciences, Budapest, Hungary
| | - Gábor Turu
- Department of Physiology, Semmelweis University, Budapest, Hungary
- Eötvös Loránd Research Network and Semmelweis University (ELKH-SE) Laboratory of Molecular Physiology, Eötvös Loránd Research Network, Budapest, Hungary
- *Correspondence: Gábor Turu,
| | - György Nagy
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, Budapest, Hungary
- Department of Rheumatology and Clinical Immunology, Department of Internal Medicine and Oncology, Semmelweis University, Budapest, Hungary
- Heart and Vascular Centre, Semmelweis University, Budapest, Hungary
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19
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Louwen F, Kreis NN, Ritter A, Friemel A, Solbach C, Yuan J. BCL6, a key oncogene, in the placenta, pre-eclampsia and endometriosis. Hum Reprod Update 2022; 28:890-909. [PMID: 35640966 PMCID: PMC9629482 DOI: 10.1093/humupd/dmac027] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 05/02/2022] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND The key oncogene B-cell lymphoma 6 (BCL6) drives malignant progression by promoting proliferation, overriding DNA damage checkpoints and blocking cell terminal differentiation. However, its functions in the placenta and the endometrium remain to be defined. OBJECTIVE AND RATIONALE Recent studies provide evidence that BCL6 may play various roles in the human placenta and the endometrium. Deregulated BCL6 might be related to the pathogenesis of pre-eclampsia (PE) as well as endometriosis. In this narrative review, we aimed to summarize the current knowledge regarding the pathophysiological role of BCL6 in these two reproductive organs, discuss related molecular mechanisms, and underline associated research perspectives. SEARCH METHODS We conducted a comprehensive literature search using PubMed for human, animal and cellular studies published until October 2021 in the following areas: BCL6 in the placenta, in PE and in endometriosis, in combination with its functions in proliferation, fusion, migration, invasion, differentiation, stem/progenitor cell maintenance and lineage commitment. OUTCOMES The data demonstrate that BCL6 is important in cell proliferation, survival, differentiation, migration and invasion of trophoblastic cells. BCL6 may have critical roles in stem/progenitor cell survival and differentiation in the placenta and the endometrium. BCL6 is aberrantly upregulated in pre-eclamptic placentas and endometriotic lesions through various mechanisms, including changes in gene transcription and mRNA translation as well as post-transcriptional/translational modifications. Importantly, increased endometrial BCL6 is considered to be a non-invasive diagnostic marker for endometriosis and a predictor for poor outcomes of IVF. These data highlight that BCL6 is crucial for placental development and endometrium homeostasis, and its upregulation is associated with the pathogenesis of PE, endometriosis and infertility. WIDER IMPLICATIONS The lesson learned from studies of the key oncogene BCL6 reinforces the notion that numerous signaling pathways and regulators are shared by tumors and reproductive organs. Their alteration may promote the progression of malignancies as well as the development of gestational and reproductive disorders.
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Affiliation(s)
- Frank Louwen
- Division of Obstetrics and Prenatal Medicine, Department of Gynecology and Obstetrics, University Hospital Frankfurt, J. W. Goethe-University, Frankfurt, Germany
| | - Nina-Naomi Kreis
- Division of Obstetrics and Prenatal Medicine, Department of Gynecology and Obstetrics, University Hospital Frankfurt, J. W. Goethe-University, Frankfurt, Germany
| | - Andreas Ritter
- Division of Obstetrics and Prenatal Medicine, Department of Gynecology and Obstetrics, University Hospital Frankfurt, J. W. Goethe-University, Frankfurt, Germany
| | - Alexandra Friemel
- Division of Obstetrics and Prenatal Medicine, Department of Gynecology and Obstetrics, University Hospital Frankfurt, J. W. Goethe-University, Frankfurt, Germany
| | - Christine Solbach
- Division of Obstetrics and Prenatal Medicine, Department of Gynecology and Obstetrics, University Hospital Frankfurt, J. W. Goethe-University, Frankfurt, Germany
| | - Juping Yuan
- Division of Obstetrics and Prenatal Medicine, Department of Gynecology and Obstetrics, University Hospital Frankfurt, J. W. Goethe-University, Frankfurt, Germany
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20
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Eckert D, Rapp F, Tsedeke AT, Kraft D, Wente I, Molendowska J, Basheer S, Langhans M, Meckel T, Friedrich T, Donaubauer AJ, Becker I, Frey B, Fournier C. Modulation of Differentiation and Bone Resorbing Activity of Human (Pre-) Osteoclasts After X-Ray Exposure. Front Immunol 2022; 13:817281. [PMID: 35603191 PMCID: PMC9116137 DOI: 10.3389/fimmu.2022.817281] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 04/08/2022] [Indexed: 11/13/2022] Open
Abstract
Low-dose radiotherapy (LD-RT) is a local treatment option for patients with chronic degenerative and inflammatory diseases, in particular musculoskeletal diseases. Despite reported analgesic and anti-inflammatory effects, cellular and molecular mechanisms related to osteoimmunological effects are still elusive. Here we test the hypothesis that X-irradiation inhibits the differentiation of precursor osteoclasts into mature osteoclasts (mOC) and their bone resorbing activity. Circulating monocytes from healthy donors were isolated and irradiated after attachment with single or fractionated X-ray doses, comparable to an LD-RT treatment scheme. Then monocytes underwent ex vivo differentiation into OC during cultivation up to 21 days, under conditions mimicking the physiological microenvironment of OC on bone. After irradiation, apoptotic frequencies were low, but the total number of OC precursors and mOC decreased up to the end of the cultivation period. On top, we observed an impairment of terminal differentiation, i.e. a smaller fraction of mOC, reduced resorbing activity on bone, and release of collagen fragments. We further analyzed the effect of X-irradiation on multinucleation, resulting from the fusion of precursor OC, which occurs late during OC differentiation. At 21 days after exposure, the observation of smaller cellular areas and a reduced number of nuclei per mOC suggest an impaired fusion of OC precursors to form mOC. Before, at 14 days, the nuclear translocation of Nuclear Factor Of Activated T Cells 1 (NFATc1), a master regulator of osteoclast differentiation and fusion, was decreased. In first results, obtained in the frame of a longitudinal LD-RT study, we previously reported a pain-relieving effect in patients. However, in a subgroup of patients suffering from Calcaneodynia or Achillodynia, we did not observe a consistent decrease of established blood markers for resorption and formation of bone, or modified T cell subtypes involved in regulating these processes. To assess the relevance of changes in bone metabolism for other diseases treated with LD-RT will be subject of further studies. Taken together, we observed that in vitro X-irradiation of monocytes results in an inhibition of the differentiation into bone-resorbing OC and a concomitant reduction of resorbing activity. The detected reduced NFATc1 signaling could be one underlying mechanism.
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Affiliation(s)
- Denise Eckert
- Department of Biophysics, Gesellschaft für Schwerionenforschung (GSI) Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - Felicitas Rapp
- Department of Biophysics, Gesellschaft für Schwerionenforschung (GSI) Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - Ayele Taddese Tsedeke
- Department of Biophysics, Gesellschaft für Schwerionenforschung (GSI) Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - Daniela Kraft
- Department of Biophysics, Gesellschaft für Schwerionenforschung (GSI) Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - Isabell Wente
- Department of Biophysics, Gesellschaft für Schwerionenforschung (GSI) Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - Jessica Molendowska
- Department of Biophysics, Gesellschaft für Schwerionenforschung (GSI) Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - Sidra Basheer
- Department of Biophysics, Gesellschaft für Schwerionenforschung (GSI) Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - Markus Langhans
- Department of Macromolecular and Paper Chemistry and Membrane Dynamics, Technical University Darmstadt, Darmstadt, Germany
| | - Tobias Meckel
- Department of Macromolecular and Paper Chemistry and Membrane Dynamics, Technical University Darmstadt, Darmstadt, Germany
| | - Thomas Friedrich
- Department of Biophysics, Gesellschaft für Schwerionenforschung (GSI) Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - Anna-Jasmina Donaubauer
- Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany.,Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Ina Becker
- Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany.,Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Benjamin Frey
- Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany.,Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Claudia Fournier
- Department of Biophysics, Gesellschaft für Schwerionenforschung (GSI) Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
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21
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Philip R, Fiorino C, Harrison RE. Terminally differentiated osteoclasts organize centrosomes into large clusters for microtubule nucleation and bone resorption. Mol Biol Cell 2022; 33:ar68. [PMID: 35511803 DOI: 10.1091/mbc.e22-03-0098] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Osteoclasts are highly specialized, multinucleated cells responsible for the selective resorption of the dense, calcified bone matrix. Microtubules (MTs) contribute to the polarization and trafficking events involved in bone resorption by osteoclasts, however the origin of these elaborate arrays is less clear. Osteoclasts arise through cell fusion of precursor cells. Previous studies have suggested that centrosome MT nucleation is lost during this process, with the nuclear membrane and its surrounding Golgi serving as the major microtubule organizing centres (MTOCs) in these cells. Here we reveal that precursor cell centrosomes are maintained and functional in the multinucleated osteoclast and interestingly form large MTOC clusters, with the clusters organizing significantly more MTs, compared to individual centrosomes. MTOC cluster formation requires dynamic microtubules and minus-end directed MT motor activity. Inhibition of these centrosome clustering elements had a marked impact on both F-actin ring formation and bone resorption. Together these findings show that multinucleated osteoclasts employ unique centrosomal clusters to organize the extensive microtubules during bone attachment and resorption. [Media: see text].
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Affiliation(s)
- Reuben Philip
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada, M5S 1A8.,Lunenfeld-Tanenbaum Research Institute, Toronto, Ontario, Canada, M5G 1 × 5
| | - Cara Fiorino
- Department of Cell & Systems Biology and the Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario M1C 1A4
| | - Rene E Harrison
- Department of Cell & Systems Biology and the Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario M1C 1A4
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22
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Ahmadzadeh K, Vanoppen M, Rose CD, Matthys P, Wouters CH. Multinucleated Giant Cells: Current Insights in Phenotype, Biological Activities, and Mechanism of Formation. Front Cell Dev Biol 2022; 10:873226. [PMID: 35478968 PMCID: PMC9035892 DOI: 10.3389/fcell.2022.873226] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 03/17/2022] [Indexed: 12/21/2022] Open
Abstract
Monocytes and macrophages are innate immune cells with diverse functions ranging from phagocytosis of microorganisms to forming a bridge with the adaptive immune system. A lesser-known attribute of macrophages is their ability to fuse with each other to form multinucleated giant cells. Based on their morphology and functional characteristics, there are in general three types of multinucleated giant cells including osteoclasts, foreign body giant cells and Langhans giant cells. Osteoclasts are bone resorbing cells and under physiological conditions they participate in bone remodeling. However, under pathological conditions such as rheumatoid arthritis and osteoporosis, osteoclasts are responsible for bone destruction and bone loss. Foreign body giant cells and Langhans giant cells appear only under pathological conditions. While foreign body giant cells are found in immune reactions against foreign material, including implants, Langhans giant cells are associated with granulomas in infectious and non-infectious diseases. The functionality and fusion mechanism of osteoclasts are being elucidated, however, our knowledge on the functions of foreign body giant cells and Langhans giant cells is limited. In this review, we describe and compare the phenotypic aspects, biological and functional activities of the three types of multinucleated giant cells. Furthermore, we provide an overview of the multinucleation process and highlight key molecules in the different phases of macrophage fusion.
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Affiliation(s)
- Kourosh Ahmadzadeh
- Laboratory of Immunobiology, Department Microbiology and Immunology, Rega Institute, KU Leuven – University of Leuven, Leuven, Belgium
- *Correspondence: Kourosh Ahmadzadeh, ; Carine Helena Wouters,
| | - Margot Vanoppen
- Laboratory of Immunobiology, Department Microbiology and Immunology, Rega Institute, KU Leuven – University of Leuven, Leuven, Belgium
| | - Carlos D. Rose
- Division of Pediatric Rheumatology Nemours Children’s Hospital, Thomas Jefferson University, Philadelphia, PA, United States
| | - Patrick Matthys
- Laboratory of Immunobiology, Department Microbiology and Immunology, Rega Institute, KU Leuven – University of Leuven, Leuven, Belgium
| | - Carine Helena Wouters
- Laboratory of Immunobiology, Department Microbiology and Immunology, Rega Institute, KU Leuven – University of Leuven, Leuven, Belgium
- Division Pediatric Rheumatology, UZ Leuven, Leuven, Belgium
- European Reference Network for Rare Immunodeficiency, Autoinflammatory and Autoimmune Diseases (RITA) at University Hospital Leuven, Leuven, Belgium
- *Correspondence: Kourosh Ahmadzadeh, ; Carine Helena Wouters,
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23
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Zhang H, Ma H, Yang X, Fan L, Tian S, Niu R, Yan M, Zheng M, Zhang S. Cell Fusion-Related Proteins and Signaling Pathways, and Their Roles in the Development and Progression of Cancer. Front Cell Dev Biol 2022; 9:809668. [PMID: 35178400 PMCID: PMC8846309 DOI: 10.3389/fcell.2021.809668] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 12/22/2021] [Indexed: 12/16/2022] Open
Abstract
Cell fusion is involved in many physiological and pathological processes, including gamete binding, and cancer development. The basic processes of cell fusion include membrane fusion, cytoplasmic mixing, and nuclear fusion. Cell fusion is regulated by different proteins and signaling pathways. Syncytin-1, syncytin-2, glial cell missing 1, galectin-1 and other proteins (annexins, myomaker, myomerger etc.) involved in cell fusion via the cyclic adenosine-dependent protein kinase A, mitogen-activated protein kinase, wingless/integrase-1, and c-Jun N-terminal kinase signaling pathways. In the progression of malignant tumors, cell fusion is essential during the organ-specific metastasis, epithelial-mesenchymal transformation, the formation of cancer stem cells (CSCs), cancer angiogenesis and cancer immunity. In addition, diploid cells can be induced to form polyploid giant cancer cells (PGCCs) via cell fusion under many kinds of stimuli, including cobalt chloride, chemotherapy, radiotherapy, and traditional Chinese medicine. PGCCs have CSC-like properties, and the daughter cells derived from PGCCs have a mesenchymal phenotype and exhibit strong migration, invasion, and proliferation abilities. Therefore, exploring the molecular mechanisms of cell fusion can enable us better understand the development of malignant tumors. In this review, the basic process of cell fusion and its significance in cancer is discussed.
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Affiliation(s)
- Hao Zhang
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hong Ma
- Tianjin Union Medical Center, Nankai University, Tianjin, China
| | - Xiaohui Yang
- Nankai University School of Medicine, Nankai University, Tianjin, China
| | - Linlin Fan
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Shifeng Tian
- Graduate School, Tianjin Medical University, Tianjin, China
| | - Rui Niu
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Man Yan
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Minying Zheng
- Tianjin Union Medical Center, Nankai University, Tianjin, China
| | - Shiwu Zhang
- Tianjin Union Medical Center, Nankai University, Tianjin, China
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24
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Xue Y, Zhao C, Liu T. Interferon-induced protein with tetratricopeptide repeats 1 (IFIT1) accelerates osteoclast formation by regulating signal transducer and activator of transcription 3 (STAT3) signalling. Bioengineered 2022; 13:2285-2295. [PMID: 35034537 PMCID: PMC8973581 DOI: 10.1080/21655979.2021.2024333] [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] [Indexed: 01/27/2023] Open
Abstract
Osteoclasts (OCs), the main cause of bone resorption irregularities, may ultimately cause various bone diseases, including osteoarthritis. The objective of this study was to investigate the effect of interferon-induced protein with tetratricopeptide repeats 1 (IFIT1) on OC formation induced by receptor activator of nuclear factor κB (NF-κB) ligand (RANKL) and to further explore its underlying mechanism. IFIT1 expression in Raw264.7 cells treated with macrophage colony-stimulating factor (M-CSF) and RANKL was determined by qRT-PCR. OC formation was detected using tartrate-resistant acid phosphatase (TRAP) staining. The effect of IFIT1 on STAT3 activation was detected using Western blotting. Additionally, Western blotting was used to measure the change in the expression of OC-specific proteins. IFIT1 was highly expressed in Raw264.7 cells after stimulation with M-CSF and RANKL. IFIT1 overexpression accelerated the formation of OCs, as evidenced by the increased number and size of multinuclear cells, and the upregulation of OC-specific proteins, and activated the STAT3 pathway, by inducing phosphorylation of JAK1 and STAT3. However, silencing of IFIT1 inhibited the formation of OCs and a STAT3 inhibitor Stattic weakened the effects of IFIT1. In conclusion, IFIT1 accelerates the formation of OCs, which is caused by RANKL by STAT3 pathway regulation. This study provides a potential basis for further research and for development of drugs for treating bone resorption-related diseases.
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Affiliation(s)
- Yuanliang Xue
- Department of Orthopedics, Clinical Medical College of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Chuanliang Zhao
- Department of Radiology, Laoling People's Hospital, Dezhou, Shandong, China
| | - Tao Liu
- Department of Pediatric Surgery, Dezhou People's Hospital of Shandong, Dezhou, Shandong, China
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25
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Wu Z, Li C, Chen Y, Liu Q, Li N, He X, Li W, Shen R, Li L, Wei C, Shao S, Fu F, Ding J, Sun X, Wang D, Yuan G, Su Y, Zhao J, Xu J, Xu R, Xu X, Xu F. Chrysin Protects Against Titanium Particle-Induced Osteolysis by Attenuating Osteoclast Formation and Function by Inhibiting NF-κB and MAPK Signaling. Front Pharmacol 2022; 13:793087. [PMID: 35401243 PMCID: PMC8985127 DOI: 10.3389/fphar.2022.793087] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 01/25/2022] [Indexed: 02/05/2023] Open
Abstract
Bone homeostasis only exists when the physical function of osteoblast and osteoclast stays in the balance between bone formation and resorption. Bone resorption occurs when the two processes are uncoupled, shifting the balance in favour of bone resorption. Excessive activation of osteoclasts leads to a range of osteolytic bone diseases including osteoporosis, aseptic prosthesis loosening, rheumatoid arthritis, and osteoarthritis. Receptor activator of nuclear factor kappa-B ligand (RANKL) and its downstream signaling pathways are recognized as key mediators that drive the formation and activation of osteoclastic function. Hence, osteoclast formation and/or its function remain as dominant targets for research and development of agents reaching the treatment towards osteolytic diseases. Chrysin (CHR) is a flavonoid with a wide range of anti-inflammatory and anti-tumor effects. However, its effect on osteoclasts remains unknown. In this study, we found the effects of CHR on inhibiting osteoclast differentiation which were assessed in terms of the number and size of TRAcP positive multinucleated osteoclasts (OCs). Further, the inhibitory effects of CHR on bone resorption and osteoclast fusion of pre-OC were assessed by hydroxyapatite resorption pit assay and F-actin belts staining; respectively. Western blotting analysis of RANKL-induced signaling pathways and immunofluorescence analysis for p65 nuclear translocation in response to RANKL-induced osteoclasts were used to analyze the mechanism of action of CHR affecting osteoclasts. Lastly, the murine calvarial osteolysis model revealed that CHR could protect against particle-induced bone destruction in vivo. Collectively, our data strongly suggested that CHR with its promising anti-tumor effects would also be a potential therapeutic agent for osteolytic diseases.
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Affiliation(s)
- Zuoxing Wu
- Research Centre for Regenerative Medicine, Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, China
- Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, School of Medicine, Xiamen University, Xiamen, China
| | - Chen Li
- Research Centre for Regenerative Medicine, Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, China
| | - Yu Chen
- Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, School of Medicine, Xiamen University, Xiamen, China
| | - Qian Liu
- Research Centre for Regenerative Medicine, Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, China
| | - Na Li
- Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, School of Medicine, Xiamen University, Xiamen, China
| | - Xuemei He
- Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, School of Medicine, Xiamen University, Xiamen, China
| | - Weibin Li
- Xiang’an Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Rong Shen
- Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, School of Medicine, Xiamen University, Xiamen, China
| | - Li Li
- Pharmaceutic College, Guangxi Medical University, Nanning, China
| | - Chenming Wei
- Research Centre for Regenerative Medicine, Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, China
| | - Siyuan Shao
- Research Centre for Regenerative Medicine, Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, China
| | - Fangsheng Fu
- Research Centre for Regenerative Medicine, Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, China
| | - Jiaxin Ding
- Research Centre for Regenerative Medicine, Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, China
| | - Xiaochen Sun
- Research Centre for Regenerative Medicine, Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, China
| | - Dairong Wang
- Department of Orthopedics, Guilin People’s Hospital, Guilin, China
| | - Guixin Yuan
- Department of Orthopedics, The Second Affiliated Hospital, Shantou University Medical College, Shantou, China
| | - Yiji Su
- Research Centre for Regenerative Medicine, Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, China
| | - Jinmin Zhao
- Research Centre for Regenerative Medicine, Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, China
| | - Jiake Xu
- School of Biomedical Sciences, The University of Western Australia, Perth, WA, Australia
| | - Ren Xu
- Research Centre for Regenerative Medicine, Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, China
- Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, School of Medicine, Xiamen University, Xiamen, China
- Department of Orthopedic Surgery, The First Afiliated Hospital of Xiamen University, Xiamen, China
- *Correspondence: Ren Xu, ; Xin Xu, ; Feng Xu,
| | - Xin Xu
- Research Centre for Regenerative Medicine, Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, China
- *Correspondence: Ren Xu, ; Xin Xu, ; Feng Xu,
| | - Feng Xu
- Research Centre for Regenerative Medicine, Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, China
- Department of Subject Planning, Ninth Peoples Hospital Shanghai, Jiaotong University School of Medicine, Shanghai, China
- *Correspondence: Ren Xu, ; Xin Xu, ; Feng Xu,
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Zhang JQ, Takahashi A, Gu JY, Zhang X, Kyumoto-Nakamura Y, Kukita A, Uehara N, Hiura H, Yamaza T, Kukita T. In vitro and in vivo detection of tunneling nanotubes in normal and pathological osteoclastogenesis involving osteoclast fusion. J Transl Med 2021; 101:1571-1584. [PMID: 34537825 DOI: 10.1038/s41374-021-00656-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 08/04/2021] [Accepted: 08/04/2021] [Indexed: 11/09/2022] Open
Abstract
Osteoclasts are multinucleated cells formed through specific recognition and fusion of mononuclear osteoclast precursors derived from hematopoietic stem cells. Detailed cellular events concerning cell fusion in osteoclast differentiation remain ambiguous. Tunneling nanotubes (TNTs), actin-based membrane structures, play an important role in intercellular communication between cells. We have previously reported the presence of TNTs in the fusion process of osteoclastogenesis. Here we analyzed morphological details of TNTs using scanning electron microscopy. The osteoclast precursor cell line RAW-D was stimulated to form osteoclast-like cells, and morphological details in the appearance of TNTs were extensively analyzed. Osteoclast-like cells could be classified into three types; early osteoclast precursors, late osteoclast precursors, and multinucleated osteoclast-like cells based on the morphological characteristics. TNTs were frequently observed among these three types of cells. TNTs could be classified into thin, medium, and thick TNTs based on the diameter and length. The shapes of TNTs were dynamically changed from thin to thick. Among them, medium TNTs were often observed between two remote cells, in which side branches attached to the culture substrates and beaded bulge-like structures were often observed. Cell-cell interaction through TNTs contributed to cell migration and rapid transport of information between cells. TNTs were shown to be involved in cell-cell fusion between osteoclast precursors and multinucleated osteoclast-like cells, in which movement of membrane vesicles and nuclei was observed. Formation of TNTs was also confirmed in primary cultures of osteoclasts. Furthermore, we have successfully detected TNTs formed between osteoclasts observed in the bone destruction sites of arthritic rats. Thus, formation of TNTs may be important for the differentiation of osteoclasts both in vitro and in vivo. TNTs could be one target cellular structure for the regulation of osteoclast differentiation and function in bone diseases.
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Affiliation(s)
- Jing-Qi Zhang
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Akira Takahashi
- Department of Fixed Prosthodontics, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Jiong-Yan Gu
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Xiaoxu Zhang
- Department of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Yukari Kyumoto-Nakamura
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Akiko Kukita
- Department of Research Center of Arthroplasty, Faculty of Medicine, Saga University, Saga, Japan
| | - Norihisa Uehara
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Hidenobu Hiura
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
- Department of Orthodontics and Dentofacial Orthopedics, Division of Oral Health, Growth, and Development, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Takayoshi Yamaza
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Toshio Kukita
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan.
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Zheng Y, Zheng Z, Zhang K, Zhu P. Osteonecrosis in systemic lupus erythematosus: Systematic insight from the epidemiology, pathogenesis, diagnosis and management. Autoimmun Rev 2021; 21:102992. [PMID: 34793961 DOI: 10.1016/j.autrev.2021.102992] [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: 10/14/2021] [Accepted: 11/14/2021] [Indexed: 02/08/2023]
Abstract
Osteonecrosis (ON) is one of the serious and well recognized complicationscausing severe pain and disability in patients with systemic lupus erythematosus (SLE), and its manifestation and pathogenesis are only partially understood. This review provide an update of the recent progress in etiology, pathogenesis, diagnosis, and treatment of systemic lupus erythematosus related osteonecrosis (SLE-ON). Despite the concomitant use of corticosteroids, alcohol and obesity, the dysregulated immune micro-environment and the complex pathogenesis of SLE synergistically play important roles in the development of ON. Osteonecrosis of femoral head (ONFH) is the most often involved joint in SLE. The current classification and staging system of ONFH is based on imaging techniques, particularly relating to MRI and CT, for the identification and quantification of necrotic lesions. For SLE-ONFH patients, both SLE specific clinical symptoms and ONFH imaging findings should be comprehensively evaluated. Even though advances concerning bone grafting and arthroplasty procedures have resulted in improved clinical outcomes, early pharmacological treatment at the pre-collapse stage may prevent joint collapse and reduce the joint arthroplasty rate, and this needs to be accounted. Although some progress has been made, considerably more research is needed before we fully understand SLE-ONFH. Future treatments of SLE-ONFH may involve genetic or cell-based therapies that target potential biomarkers, and this will lead to effective measures for saving thefunction of hip joint and preventing osteonecrosis.
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Affiliation(s)
- Yan Zheng
- Department of Clinical Immunology, Xijing Hospital, The Fourth Military Medical University, Shaanxi Province, PR China; National Translational Science Center for Molecular Medicine, Xi'an, Shaanxi Province, PR China
| | - Zhaohui Zheng
- Department of Clinical Immunology, Xijing Hospital, The Fourth Military Medical University, Shaanxi Province, PR China
| | - Kui Zhang
- Department of Clinical Immunology, Xijing Hospital, The Fourth Military Medical University, Shaanxi Province, PR China
| | - Ping Zhu
- Department of Clinical Immunology, Xijing Hospital, The Fourth Military Medical University, Shaanxi Province, PR China; National Translational Science Center for Molecular Medicine, Xi'an, Shaanxi Province, PR China.
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Yasuda K, Matsubara T, Shirakawa T, Kawamoto T, Kokabu S. Protein phosphatase 1 regulatory subunit 18 suppresses the transcriptional activity of NFATc1 via regulation of c-fos. Bone Rep 2021; 15:101114. [PMID: 34401407 PMCID: PMC8353383 DOI: 10.1016/j.bonr.2021.101114] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 07/17/2021] [Accepted: 08/01/2021] [Indexed: 12/20/2022] Open
Abstract
The transcription factor NFATc1 and its binding partner AP-1 (a complex containing c-fos and c-Jun) play a central role in osteoclast differentiation. NFATc1 and AP-1 promote the expression of target genes such as Acp5, Ctsk and also auto-regulate NFATc1 expression as well. We previously reported that protein phosphatase 1 regulatory subunit 18 (PPP1r18) is a negative regulator of osteoclast bone resorption by inhibiting cell attachment to bone matrix. We also reported that PPP1r18 potentially regulates NFATc1 expression during osteoclast differentiation. To further explore this, in this study we have examined the effect of PPP1r18 on NFATc1 expression and activity by overexpressing PPP1r18 during the early stage of osteoclast differentiation. We found that PPP1r18 suppressed NFATc1 expression through inhibition of the transcriptional activity of NFATc1. Since PPP1r18 does not regulate NFATc1 directly, we next explored the involvement of AP-1. Our data showed that c-fos phosphorylation and nuclear localization were reduced by PPP1r18 overexpression. Further experiments showed that overexpression of c-fos together with PPP1r18 rescued NFATc1 expression and transcriptional activity. Moreover, c-fos activity inhibition by PPP1r18 was canceled by mutation of the phosphatase binding site of PPP1r18. Taken together, PPP1r18-regulated phosphatase activity targets c-fos phosphorylation and suppresses subsequent NFATc1 expression and activity. PPP1r18 suppresses osteoclast differentiation. PPP1r18 suppresses c-fos phosphorylation and nuclear localization. PPP1r18 suppresses NFAT via c-fos.
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Key Words
- Ctsk, cathepsin K
- Dc-stamp, dendrocyte expressed seven transmembrane protein
- GapDH, glyceraldehyde-3-phosphate dehydrogenase
- M-CSF, macrophage colony stimulating factor
- NFATc1
- NFATc1, nuclear factor of activated T cells 1
- Osteoclast
- PP1, protein phosphatase 1
- PPP1r18
- PPP1r18, protein phosphatase 1 regulatory subunit 18
- RANK, receptor activator nuclear factor kappa B
- RANKL, receptor activator nuclear factor kappa B ligand
- Src, Rous sarcoma oncogene
- TRAP, tartrate resistant acid phosphatase
- c-Fos
- c-Jun, Jun proto-oncogene, AP-1 transcription factor subunit
- c-fos, Fos proto-oncogene, AP-1 transcription factor subunit
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Affiliation(s)
- Kazuma Yasuda
- Division of Molecular Signaling and Biochemistry, Department of Health Improvement, Kyushu Dental University, 2-6-1 Manazuru, Kokurakita-ku, Kitakyushu, Fukuoka 803-8580, Japan
- Division of Orofacial Functions and Orthodontics, Department of Health Improvement, Kyushu Dental University, 2-6-1 Manazuru, Kokurakita-ku, Kitakyushu, Fukuoka 803-8580, Japan
| | - Takuma Matsubara
- Division of Molecular Signaling and Biochemistry, Department of Health Improvement, Kyushu Dental University, 2-6-1 Manazuru, Kokurakita-ku, Kitakyushu, Fukuoka 803-8580, Japan
- Corresponding authors.
| | - Tomohiko Shirakawa
- Division of Molecular Signaling and Biochemistry, Department of Health Improvement, Kyushu Dental University, 2-6-1 Manazuru, Kokurakita-ku, Kitakyushu, Fukuoka 803-8580, Japan
- Division of Orofacial Functions and Orthodontics, Department of Health Improvement, Kyushu Dental University, 2-6-1 Manazuru, Kokurakita-ku, Kitakyushu, Fukuoka 803-8580, Japan
| | - Tatsuo Kawamoto
- Division of Orofacial Functions and Orthodontics, Department of Health Improvement, Kyushu Dental University, 2-6-1 Manazuru, Kokurakita-ku, Kitakyushu, Fukuoka 803-8580, Japan
| | - Shoichiro Kokabu
- Division of Molecular Signaling and Biochemistry, Department of Health Improvement, Kyushu Dental University, 2-6-1 Manazuru, Kokurakita-ku, Kitakyushu, Fukuoka 803-8580, Japan
- Corresponding authors.
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Ngoc Thuy Tran V, Chaisuparat R. Medication-related osteonecrosis of the jaw: Osteoclast profile in comparison with osteoradionecrosis of the jaw and osteomyelitis of the jaw. J Oral Pathol Med 2021; 50:731-740. [PMID: 34038006 DOI: 10.1111/jop.13202] [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: 03/10/2021] [Revised: 04/29/2021] [Accepted: 05/13/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Medication-related osteonecrosis of the jaw (MRONJ) is a pathology condition of jaw bone caused by a side effect of medications prescribed for skeletal disease. The mechanism of MRONJ is still unknown now. Osteoclasts are cells directly influenced by the medication and the modification in cells metabolisms by the drugs lead to MRONJ. Thus, this study aimed to investigate the osteoclasts morphology, quantity, and comparing with other necrotic diseases. METHODS Thirty-eight (38) subjects, including cases with MRONJ (n = 11), osteoradionecrosis of the jaw (n = 9), osteomyelitis of the jaw (n = 9), and normal jaw bone (n = 9), were studied. Hematoxylin-and-eosin-stained slides of these diagnosed cases were used to evaluate osteoclasts' characteristics. Immunohistochemistry of TRAP was performed to observed the function of osteoclasts. These characteristics of osteoclasts were also evaluated in the relationship with the histological features using regression analysis. RESULTS The results showed that osteoclasts in MRONJ enhance activity by increasing the size and the quantity (p < 0.05). The presence of osteoblasts, inflammatory cells, and bacterial colonies showed a strong correlation with the change in morphology and the number of osteoclasts (p < 0.05). However, the TRAP-positive mean number and the TRAP intensity of osteoclasts in MRONJ did not show a significant difference with those in other groups (p > 0.05). CONCLUSION In conclusion, osteoclasts in MRONJ increase the number and become bigger with multi-nuclei which might relate to the presence of osteoblasts, inflammation, and microorganisms. This finding supports the idea osteoclasts might be the main key to investigate MRONJ.
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Affiliation(s)
- Vy Ngoc Thuy Tran
- Graduate Program in Oral Biology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Risa Chaisuparat
- Department of Oral Pathology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
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30
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Cho KM, Kim YS, Lee M, Lee HY, Bae YS. Isovaleric acid ameliorates ovariectomy-induced osteoporosis by inhibiting osteoclast differentiation. J Cell Mol Med 2021; 25:4287-4297. [PMID: 33768674 PMCID: PMC8093970 DOI: 10.1111/jcmm.16482] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 03/03/2021] [Accepted: 03/12/2021] [Indexed: 12/13/2022] Open
Abstract
Osteoclasts (OCs) play important roles in bone remodelling and contribute to bone loss by increasing bone resorption activity. Excessively activated OCs cause diverse bone disorders including osteoporosis. Isovaleric acid (IVA), also known as 3-methylbutanoic acid is a 5-carbon branched-chain fatty acid (BCFA), which can be generated by bacterial fermentation of a leucine-rich diet. Here, we find that IVA suppresses differentiation of bone marrow-derived macrophages into OCs by RANKL. IVA inhibited the expression of OC-related genes. IVA-induced inhibitory effects on OC generation were attenuated by pertussis toxin but not by H89, suggesting a Gi -coupled receptor-dependent but protein kinase A-independent response. Moreover, IVA stimulates AMPK phosphorylation, and treatment with an AMPK inhibitor blocks IVA-induced inhibition of OC generation. In an ovariectomized mouse model, addition of IVA to the drinking water resulted in significant decrease of body weight gain and inhibited the expression of not only OC-related genes but also fusogenic genes in the bone tissue. IVA exposure also blocked bone destruction and OC generation in the bone tissue of ovariectomized mice. Collectively, the results demonstrate that IVA is a novel bioactive BCFA that inhibits OC differentiation, suggesting that IVA can be considered a useful material to control osteoclast-associated bone disorders, including osteoporosis.
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Affiliation(s)
- Kwang Min Cho
- Department of Biological Sciences, Sungkyunkwan University, Suwon, Korea
| | - Ye Seon Kim
- Department of Biological Sciences, Sungkyunkwan University, Suwon, Korea
| | - Mingyu Lee
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, Korea
| | - Ha Young Lee
- Department of Biological Sciences, Sungkyunkwan University, Suwon, Korea
| | - Yoe-Sik Bae
- Department of Biological Sciences, Sungkyunkwan University, Suwon, Korea.,Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, Korea
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31
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Cai R, Dong Y, Fang M, Fan Y, Cheng Z, Zhou Y, Gao J, Han F, Guo C, Ma X. Genome-Wide Association Identifies Risk Pathways for SAPHO Syndrome. Front Cell Dev Biol 2021; 9:643644. [PMID: 33816493 PMCID: PMC8012550 DOI: 10.3389/fcell.2021.643644] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 02/18/2021] [Indexed: 11/13/2022] Open
Abstract
SAPHO syndrome is a rare chronic inflammatory disease which is characterized by the comprehensive manifestations of bone, joint, and skin. However, little is known about the pathogenesis of SAPHO syndrome. A genome-wide association study (GWAS) of 49 patients and 121 control subjects have primarily focused on identification of common genetic variants associated with SAPHO, the data were analyzed by classical multiple logistic regression. Later, GWAS findings were further validated using whole exome sequencing (WES) in 16 patients and 15 controls to identify potentially functional pathways involved in SAPHO pathogenesis. In general, 40588 SNPs in genomic regions were associated with P < 0.05 after filter process, only 9 SNPs meet the expected cut-off P-value, however, none of them had association with SAPHO syndrome based on published literatures. And then, 15 pathways were found involved in SAPHO pathogenesis, of them, 6 pathways including osteoclast differentiation, bacterial invasion of epithelial cells, et al., had strong association with skin, osteoarticular manifestations of SAPHO or inflammatory reaction based published research. This study identified aberrant osteoclast differentiation and other pathways were involved in SAPHO syndrome. This finding may give insight into the understanding of pathogenic genes of SAPHO and provide the basis for SAPHO research and treatment.
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Affiliation(s)
- Ruikun Cai
- National Research Institute for Family Planning, Beijing, China
- National Human Genetic Resources Center, Beijing, China
| | - Yichao Dong
- National Research Institute for Family Planning, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
| | - Mingxia Fang
- National Research Institute for Family Planning, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
| | - Yuxuan Fan
- National Research Institute for Family Planning, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
| | - Zian Cheng
- National Research Institute for Family Planning, Beijing, China
- National Human Genetic Resources Center, Beijing, China
| | - Yue Zhou
- National Research Institute for Family Planning, Beijing, China
- National Human Genetic Resources Center, Beijing, China
| | - Jianen Gao
- National Research Institute for Family Planning, Beijing, China
- National Human Genetic Resources Center, Beijing, China
| | - Feifei Han
- Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Changlong Guo
- National Research Institute for Family Planning, Beijing, China
- National Human Genetic Resources Center, Beijing, China
| | - Xu Ma
- National Research Institute for Family Planning, Beijing, China
- National Human Genetic Resources Center, Beijing, China
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32
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Jiang Z, Lau YK, Wu M, Casal ML, Smith LJ. Ultrastructural analysis of different skeletal cell types in mucopolysaccharidosis dogs at the onset of postnatal growth. J Anat 2021; 238:416-425. [PMID: 32895948 PMCID: PMC7812126 DOI: 10.1111/joa.13305] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 07/13/2020] [Accepted: 08/07/2020] [Indexed: 02/03/2023] Open
Abstract
The mucopolysaccharidoses (MPS) are a family of lysosomal storage disorders characterized by deficient activity of enzymes that degrade glycosaminoglycans (GAGs). Abnormal development of the vertebrae and long bones is a hallmark of skeletal disease in several MPS subtypes; however, the underlying cellular mechanisms remain poorly understood. The objective of this study was to conduct an ultrastructural examination of how lysosomal storage differentially affects major skeletal cell types in MPS I and VII using naturally occurring canine disease models. We showed that both bone and cartilage cells from MPS I and VII dog vertebrae exhibit significantly elevated storage from early in postnatal life, with storage generally greater in MPS VII than MPS I. Storage was most striking for vertebral osteocytes, occupying more than forty percent of cell area. Secondary to storage, dilation of the rough endoplasmic reticulum (ER), a marker of ER stress, was observed most markedly in MPS I epiphyseal chondrocytes. Significantly elevated immunostaining of light chain 3B (LC3B) in MPS VII epiphyseal chondrocytes suggested impaired autophagy, while significantly elevated apoptotic cell death in both MPS I and VII chondrocytes was also evident. The results of this study provide insights into how lysosomal storage differentially effects major skeletal cell types in MPS I and VII, and suggests a potential relationship between storage, ER stress, autophagy, and cell death in the pathogenesis of MPS skeletal defects.
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Affiliation(s)
- Zhirui Jiang
- Department of Orthopedic SurgeryPerelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPAUSA
- Department of NeurosurgeryPerelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPAUSA
| | - Yian Khai Lau
- Department of Orthopedic SurgeryPerelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPAUSA
- Department of NeurosurgeryPerelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPAUSA
| | - Meilun Wu
- Department of Orthopedic SurgeryPerelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPAUSA
- Department of NeurosurgeryPerelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPAUSA
| | - Margret L. Casal
- Department of Clinical Sciences and Advanced MedicineSchool of Veterinary MedicineUniversity of PennsylvaniaPhiladelphiaPAUSA
| | - Lachlan J. Smith
- Department of Orthopedic SurgeryPerelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPAUSA
- Department of NeurosurgeryPerelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPAUSA
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Inagaki Y, Kido JI, Nishikawa Y, Kido R, Sakamoto E, Bando M, Naruishi K, Nagata T, Yumoto H. Gan-Lu-Yin (Kanroin), Traditional Chinese Herbal Extracts, Reduces Osteoclast Differentiation In Vitro and Prevents Alveolar Bone Resorption in Rat Experimental Periodontitis. J Clin Med 2021; 10:jcm10030386. [PMID: 33498415 PMCID: PMC7926381 DOI: 10.3390/jcm10030386] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/10/2021] [Accepted: 01/15/2021] [Indexed: 12/30/2022] Open
Abstract
Gan-Lu-Yin (GLY), a traditional Chinese herbal medicine, shows therapeutic effects on periodontitis, but that mechanism is not well known. This study aims to clarify the precise mechanism by investigating the inhibitory effects of GLY extracts on osteoclastogenesis in vitro and on bone resorption in periodontitis in vivo. RAW264.7 cells are cultured with soluble receptor activator of nuclear factor-kappa B (sRANKL) and GLY extracts (0.01–1.0 mg/mL), and stained for tartrate-resistant acid phosphatase (TRAP) to evaluate osteoclast differentiation. Experimental periodontitis is induced by placing a nylon ligature around the second maxillary molar in rats, and rats are administered GLY extracts (60 mg/kg) daily for 20 days. Their maxillae are collected on day 4 and 20, and the levels of alveolar bone resorption and osteoclast differentiation are estimated using micro-computed tomography (CT) and histological analysis, respectively. In RAW264.7 cells, GLY extracts significantly inhibit sRANKL-induced osteoclast differentiation at a concentration of more than 0.05 mg/mL. In experimental periodontitis, administering GLY extracts significantly decreases the number of TRAP-positive osteoclasts in the alveolar bone on day 4, and significantly inhibits the ligature-induced bone resorption on day 20. These results show that GLY extracts suppress bone resorption by inhibiting osteoclast differentiation in experimental periodontitis, suggesting that GLY extracts are potentially useful for oral care in periodontitis.
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Cao J, Wang S, Wei C, Lin H, Zhang C, Gao Y, Xu Z, Cheng Z, Sun WC, Wang HB. Agrimophol suppresses RANKL-mediated osteoclastogenesis through Blimp1-Bcl6 axis and prevents inflammatory bone loss in mice. Int Immunopharmacol 2021; 90:107137. [PMID: 33199235 DOI: 10.1016/j.intimp.2020.107137] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 10/17/2020] [Accepted: 10/25/2020] [Indexed: 02/06/2023]
Abstract
Excessive activity of osteoclasts causes many bone-related diseases, such as rheumatoid arthritis and osteoporosis. Agrimophol (AGR), a phenolic compound, originated from Agrimonia pilosa Ledeb. In prior studies, AGR is reported to possess schistosomicidal and mycobactericidal activities. However, no reports covered its anti-osteoclastogenesis characteristic. In this study, we found that AGR inhibited RANKL-induced osteoclastogenesis, bone-resorption, F-actin ring formation, and the mRNA expression of osteoclast-associated genes such as CTSK, TRAP, MMP-9, and ATP6v0d2 in vitro. In addition, AGR suppressed RANKL-induced expression of c-Fos and NFATc1. However, AGR treatment did not affect NF-κB activation and MAPKs phosphorylation in RANKL-stimulated BMMs, which implicated that AGR might not influence the initial expression of NFATc1 mediated by NF-κB and MAPKs signaling. Our results further indicated that AGR did not alter phosphorylation levels of GSK3β and the expression of calcineurin, which implicated that AGR treatment might not interfere with phosphorylation and de-phosphorylation of NFATc1 mediated by GSK3β and calcineurin, respectively. B-lymphocyte-induced maturation protein-1 (Blimp1), which was regarded as a transcriptional repressor of negative regulators of osteoclastogenesis, was markedly attenuated in the presence of AGR, leading to the enhanced expression of B-cell lymphoma 6 (Bcl-6). Meanwhile, Blimp1 knockdown in BMMs by siRNA strongly enhanced the expression of Bcl6 and reduced NFATc1 induction by RANKL. These findings suggested that AGR inhibited RANKL-induced osteoclast differentiation through Blimp1-Bcl-6 signaling mediated modulation of NFATc1 and its target genes. Consistent with these in vitro results, AGR exhibited a protective influence in an in vivo mouse model of LPS-induced bone loss by suppressing excessive osteoclast activity and attenuating LPS-induced bone destruction. Hence, these results identified that AGR could be considered as a potential therapeutic agent against bone lysis disease.
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Affiliation(s)
- Jinjin Cao
- Putuo District People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China; Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shaoming Wang
- Department of Endocrinology, Changchun People's Hospital, Changchun, China
| | - Congmin Wei
- Putuo District People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Hongru Lin
- Putuo District People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Chen Zhang
- Putuo District People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Yehui Gao
- Putuo District People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Zixian Xu
- Putuo District People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Zhou Cheng
- Putuo District People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China.
| | - Wan-Chun Sun
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonosis, Jilin University, Changchun 130062, China.
| | - Hong-Bing Wang
- Putuo District People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China.
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Deng Z, Hu W, Ai H, Chen Y, Dong S. The Dramatic Role of IFN Family in Aberrant Inflammatory Osteolysis. Curr Gene Ther 2021; 21:112-129. [PMID: 33245272 DOI: 10.2174/1566523220666201127114845] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 11/11/2020] [Accepted: 11/12/2020] [Indexed: 11/22/2022]
Abstract
Skeletal system has been considered a highly dynamic system, in which bone-forming osteoblasts and bone-resorbing osteoclasts go through a continuous remodeling cycle to maintain homeostasis of bone matrix. It has been well acknowledged that interferons (IFNs), acting as a subgroup of cytokines, not only have crucial effects on regulating immunology but also could modulate the dynamic balance of bone matrix. In the light of different isoforms, IFNs have been divided into three major categories in terms of amino acid sequences, recognition of specific receptors and biological activities. Currently, type I IFNs consist of a multi-gene family with several subtypes, of which IFN-α exerts pro-osteoblastogenic effects to activate osteoblast differentiation and inhibits osteoclast fusion to maintain bone matrix integrity. Meanwhile, IFN-β suppresses osteoblast-mediated bone remodeling as well as exhibits inhibitory effects on osteoclast differentiation to attenuate bone resorption. Type II IFN constitutes the only type, IFN-γ, which exerts regulatory effects on osteoclastic bone resorption and osteoblastic bone formation by biphasic ways. Interestingly, type III IFNs are regarded as new members of IFN family composed of four members, including IFN-λ1 (IL-29), IFN-λ2 (IL-28A), IFN-λ3 (IL-28B) and IFN-λ4, which have been certified to participate in bone destruction. However, the direct regulatory mechanisms underlying how type III IFNs modulate the metabolic balance of bone matrix, remains poorly elucidated. In this review, we have summarized functions of IFN family during physiological and pathological conditions and described the mechanisms by which IFNs maintain bone matrix homeostasis via affecting the osteoclast-osteoblast crosstalk. In addition, the potential therapeutic effects of IFNs on inflammatory bone destruction diseases such as rheumatoid arthritis (RA), osteoarthritis (OA) and infectious bone diseases are also well displayed, which are based on the predominant role of IFNs in modulating the dynamic equilibrium of bone matrix.
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Affiliation(s)
- Zihan Deng
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Wenhui Hu
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Hongbo Ai
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Yueqi Chen
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Shiwu Dong
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing 400038, China
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Zhu M, Xu W, Jiang J, Wang Y, Guo Y, Yang R, Chang Y, Zhao B, Wang Z, Zhang J, Wang T, Shangguan L, Wang S. Peiminine Suppresses RANKL-Induced Osteoclastogenesis by Inhibiting the NFATc1, ERK, and NF-κB Signaling Pathways. Front Endocrinol (Lausanne) 2021; 12:736863. [PMID: 34630331 PMCID: PMC8498341 DOI: 10.3389/fendo.2021.736863] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 09/02/2021] [Indexed: 12/23/2022] Open
Abstract
Osteoclasts (OCs) play an important role in osteoporosis, a disease that is mainly characterized by bone loss. In our research, we aimed to identify novel approach for regulating osteoclastogenesis and thereby treating osteoporosis. Previous studies have set a precedent for screening traditional Chinese herbal extracts for effective inhibitors. Peiminine is an alkaloid extracted from the bulb of Fritillaria thunbergii Miq that reportedly has anticancer and anti-inflammatory effects. Thus, the potential inhibitory effect of peiminine on OC differentiation was investigated via a series of experiments. According to the results, peiminine downregulated the levels of specific genes and proteins in vitro and consequently suppressed OC differentiation and function. Based on these findings, we further investigated the underlying molecular mechanisms and identified the NF-κB and ERK1/2 signaling pathways as potential targets of peiminine. In vivo, peiminine alleviated bone loss in an ovariectomized mouse model.
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Affiliation(s)
- Mengbo Zhu
- Department of Orthopedic, Second Hospital of Shanxi Medical University, Taiyuan, China
- Department of Orthopedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
| | - Wenbin Xu
- Department of Orthopedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
| | - Jiuzhou Jiang
- Department of Orthopedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
| | - Yining Wang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yanjing Guo
- Department of Orthopedic, Second Hospital of Shanxi Medical University, Taiyuan, China
- Department of Biochemistry, Basic Medical College, Shanxi Medical University, Taiyuan, China
| | - Ruijia Yang
- Department of Orthopedic, Second Hospital of Shanxi Medical University, Taiyuan, China
- Department of Biochemistry, Basic Medical College, Shanxi Medical University, Taiyuan, China
| | - Yaqiong Chang
- Department of Orthopedic, Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Bin Zhao
- Department of Orthopedic, Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Zhenyu Wang
- Department of Orthopedic, Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Jianfeng Zhang
- Department of Orthopedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
| | - Te Wang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
- *Correspondence: Shaowei Wang, ; Liqin Shangguan, ; Te Wang,
| | - Liqin Shangguan
- Department of Orthopedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
- *Correspondence: Shaowei Wang, ; Liqin Shangguan, ; Te Wang,
| | - Shaowei Wang
- Department of Orthopedic, Second Hospital of Shanxi Medical University, Taiyuan, China
- Department of Biochemistry, Basic Medical College, Shanxi Medical University, Taiyuan, China
- *Correspondence: Shaowei Wang, ; Liqin Shangguan, ; Te Wang,
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Carnovali M, Banfi G, Mariotti M. Age-dependent modulation of bone metabolism in zebrafish scales as new model of male osteoporosis in lower vertebrates. GeroScience 2020; 43:927-940. [PMID: 32997256 PMCID: PMC8110640 DOI: 10.1007/s11357-020-00267-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 09/10/2020] [Indexed: 12/13/2022] Open
Abstract
After middle age, in human bone, the resorption usually exceeds formation resulting in bone loss and increased risk of fractures in the aged population. Only few in vivo models in higher vertebrates are available for pathogenic and therapeutic studies about bone aging. Among these, male Danio rerio (zebrafish) can be successfully used as low vertebrate model to study degenerative alterations that affect the skeleton during aging, reducing the role of sex hormones. In this paper, we investigated the early bone aging mechanisms in male zebrafish (3, 6, 9 months old) scales evaluating the physiological changes and the effects of prednisolone, a pro-osteoporotic drug. The results evidentiated an age-dependent reduction of the mineralization rate in the fish scales, as highlighted by growing circle measurements. Indeed, the osteoblastic ALP activity at the matrix deposition site was found progressively downregulated. The higher TRAP activity was found in 63% of 9-month-old fish scales associated with resorption lacunae along the scale border. Gene expression analysis evidentiated that an increase of the tnfrsf1b (homolog of human rank) in aging scales may be responsible for resorption stimulation. Interestingly, prednisolone inhibited the physiological growth of the scale and induced in aged scales a more significant bone resorption compared with untreated fish (3.8% vs 1.02%). Bone markers analysis shown a significant reduction of ALP/TRAP ratio due to a prednisolone-dependent stimulation of tnfsf11 (homolog of human rankl) in scales of older fish. The results evidentiated for the first time the presence of a senile male osteoporosis in lower vertebrate. This new model could be helpful to identify the early mechanisms of bone aging and new therapeutic strategies to prevent age-related bone alterations in humans.
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Affiliation(s)
| | - Giuseppe Banfi
- IRCCS Istituto Ortopedico Galeazzi, Milan, Italy.,Vita-Salute San Raffaele University, Milan, Italy
| | - Massimo Mariotti
- IRCCS Istituto Ortopedico Galeazzi, Milan, Italy. .,Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy.
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Grémare A, Aussel A, Bareille R, Paiva Dos Santos B, Amédée J, Thébaud NB, Le Nihouannen D. A Unique Triculture Model to Study Osteoblasts, Osteoclasts, and Endothelial Cells. Tissue Eng Part C Methods 2020; 25:421-432. [PMID: 31169074 DOI: 10.1089/ten.tec.2018.0301] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
IMPACT STATEMENT In this article, we first developed a new medium to culture together primary human osteoblastic, osteoclastic, and endothelial cells (ECs) chosen to represent the three major bone cell tissues. Indeed, no study has been conducted on primary human cells and on the phenotype/activity retention of these three primary human cell types. Thus, we established an original triculture model with osteoblastic, osteoclastic, and ECs, where not only both cell phenotype and cell activity were maintained but also cell culture homeostasis. These promising results will permit further investigations to create in vitro conditions to mimic the bone microenvironment and analyze cell interactions in ex vivo studies.
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Affiliation(s)
- Agathe Grémare
- 1Université de Bordeaux, INSERM, Tissue Bioengineering, U1026, CHU Bordeaux, Services d'Odontologie et de Santé Buccale, F-33076, Bordeaux, France
| | - Audrey Aussel
- 1Université de Bordeaux, INSERM, Tissue Bioengineering, U1026, CHU Bordeaux, Services d'Odontologie et de Santé Buccale, F-33076, Bordeaux, France
| | - Reine Bareille
- 2Université de Bordeaux, INSERM, Tissue Bioengineering, U1026, F-33076, Bordeaux, France
| | - Bruno Paiva Dos Santos
- 2Université de Bordeaux, INSERM, Tissue Bioengineering, U1026, F-33076, Bordeaux, France
| | - Joelle Amédée
- 2Université de Bordeaux, INSERM, Tissue Bioengineering, U1026, F-33076, Bordeaux, France
| | - Noélie B Thébaud
- 1Université de Bordeaux, INSERM, Tissue Bioengineering, U1026, CHU Bordeaux, Services d'Odontologie et de Santé Buccale, F-33076, Bordeaux, France
| | - Damien Le Nihouannen
- 2Université de Bordeaux, INSERM, Tissue Bioengineering, U1026, F-33076, Bordeaux, France
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Effect of echinalkamide identified from Echinacea purpurea (L.) Moench on the inhibition of osteoclastogenesis and bone resorption. Sci Rep 2020; 10:10914. [PMID: 32616823 PMCID: PMC7331694 DOI: 10.1038/s41598-020-67890-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 06/08/2020] [Indexed: 11/15/2022] Open
Abstract
Plant cell cultures have been exploited to provide stable production and new secondary metabolites for better pharmacological activity. Fractionation of adventitious root cultures of Echinacea purpurea resulted in the isolation of eleven constituents, including three new compounds. The structures of the three new compounds were determined to be an alkylamide (1), a polyacetylene (2) and a lignan (3) on the basis of combined spectroscopic analysis. To discover new types of antiresorptive agents, we screened for new compounds that regulate osteoclast differentiation, and survival. Among three new compounds, echinalkamide (compound 1) had considerably inhibitory effects on RANKL-induced osteoclast differentiation, and on proliferation of osteoclasts and efficiently attenuated osteoclastic bone resorption without toxicity. In addition, echinalamide treatment inhibited the osteoclast—specific gene expression level. Echinalkamide achieved this inhibitory effect by disturbing phosphorylation of MAPK and activation of osteoclast transcription factors c-Fos and NFATc1. Conclusionally, our study investigated that echinalkamide remarkably inhibited osteoclast differentiation and osteoclast specific gene expression through repression of the MAPK–c-Fos–NFATC1 cascade.
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Rolph D, Das H. Transcriptional Regulation of Osteoclastogenesis: The Emerging Role of KLF2. Front Immunol 2020; 11:937. [PMID: 32477372 PMCID: PMC7237574 DOI: 10.3389/fimmu.2020.00937] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 04/22/2020] [Indexed: 12/16/2022] Open
Abstract
Dysregulation of osteoclastic differentiation and its activity is a hallmark of various musculoskeletal disease states. In this review, the complex molecular factors underlying osteoclastic differentiation and function are evaluated. The emerging role of KLF2 in regulation of osteoclastic differentiation is examined, specifically in the context of rheumatoid arthritis in which it has been most extensively studied among the musculoskeletal diseases. The therapies that exist to manage diseases associated with osteoclastogenesis are numerous and diverse. They are varied in their mechanisms of action and in the outcomes they produce. For this review, therapies targeting osteoclasts will be emphasized, though it should be noted that many therapies exist which bolster the action of osteoblasts. A new targeted molecular approach is under investigation for the future potential therapeutic development of rheumatoid arthritis.
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Affiliation(s)
- Daniela Rolph
- Department of Pharmaceutical Sciences, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, United States
| | - Hiranmoy Das
- Department of Pharmaceutical Sciences, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, United States
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41
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Curto-Garcia N, Harrison C, McLornan DP. Bone marrow niche dysregulation in myeloproliferative neoplasms. Haematologica 2020; 105:1189-1200. [PMID: 32241851 PMCID: PMC7193484 DOI: 10.3324/haematol.2019.243121] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 02/06/2020] [Indexed: 12/11/2022] Open
Abstract
The bone marrow niche is a complex and dynamic structure composed of a multitude of cell types which functionally create an interactive network facilitating hematopoietic stem cell development and maintenance. Its specific role in the pathogenesis, response to therapy, and transformation of myeloproliferative neoplasms has only recently been explored. Niche functionality is likely affected not only by the genomic background of the myeloproliferative neoplasm-associated mutated hematopoietic stem cells, but also by disease-associated 'chronic inflammation', and subsequent adaptive and innate immune responses. 'Cross-talk' between mutated hematopoietic stem cells and multiple niche components may contribute to propagating disease progression and mediating drug resistance. In this timely article, we will review current knowledge surrounding the deregulated bone marrow niche in myeloproliferative neoplasms and suggest how this may be targeted, either directly or indirectly, potentially influencing therapeutic choices both now and in the future.
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Affiliation(s)
| | - Claire Harrison
- Department of Hematology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Donal P McLornan
- Department of Hematology, Guy's and St Thomas' NHS Foundation Trust, London, UK
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42
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Shabo I, Svanvik J, Lindström A, Lechertier T, Trabulo S, Hulit J, Sparey T, Pawelek J. Roles of cell fusion, hybridization and polyploid cell formation in cancer metastasis. World J Clin Oncol 2020; 11:121-135. [PMID: 32257843 PMCID: PMC7103524 DOI: 10.5306/wjco.v11.i3.121] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 01/02/2020] [Accepted: 03/01/2020] [Indexed: 02/06/2023] Open
Abstract
Cell-cell fusion is a normal biological process playing essential roles in organ formation and tissue differentiation, repair and regeneration. Through cell fusion somatic cells undergo rapid nuclear reprogramming and epigenetic modifications to form hybrid cells with new genetic and phenotypic properties at a rate exceeding that achievable by random mutations. Factors that stimulate cell fusion are inflammation and hypoxia. Fusion of cancer cells with non-neoplastic cells facilitates several malignancy-related cell phenotypes, e.g., reprogramming of somatic cell into induced pluripotent stem cells and epithelial to mesenchymal transition. There is now considerable in vitro, in vivo and clinical evidence that fusion of cancer cells with motile leucocytes such as macrophages plays a major role in cancer metastasis. Of the many changes in cancer cells after hybridizing with leucocytes, it is notable that hybrids acquire resistance to chemo- and radiation therapy. One phenomenon that has been largely overlooked yet plays a role in these processes is polyploidization. Regardless of the mechanism of polyploid cell formation, it happens in response to genotoxic stresses and enhances a cancer cell’s ability to survive. Here we summarize the recent progress in research of cell fusion and with a focus on an important role for polyploid cells in cancer metastasis. In addition, we discuss the clinical evidence and the importance of cell fusion and polyploidization in solid tumors.
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Affiliation(s)
- Ivan Shabo
- Endocrine and Sarcoma Surgery Unit, Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm SE 171 77, Sweden
- Patient Area of Breast Cancer, Sarcoma and Endocrine Tumours, Theme Cancer, Karolinska University Hospital, Stockholm SE 171 76, Sweden
| | - Joar Svanvik
- The Transplant Institute, Sahlgrenska University Hospital, Gothenburg SE 413 45, Sweden
- Division of Surgery, Department of Biomedical and Clinical Sciences, Faculty of Medicine and Health Sciences, Linköping University, Linköping SE 581 83, Sweden
| | - Annelie Lindström
- Division of Cell Biology, Department of Biomedical and Clinical Sciences, Faculty of Medicine and Health Sciences, Linköping University, Linköping SE 581 85, Sweden
| | - Tanguy Lechertier
- Novintum Bioscience Ltd, London Bioscience Innovation Centre, London NW1 0NH, United Kingdom
| | - Sara Trabulo
- Novintum Bioscience Ltd, London Bioscience Innovation Centre, London NW1 0NH, United Kingdom
| | - James Hulit
- Novintum Bioscience Ltd, London Bioscience Innovation Centre, London NW1 0NH, United Kingdom
| | - Tim Sparey
- Novintum Bioscience Ltd, London Bioscience Innovation Centre, London NW1 0NH, United Kingdom
| | - John Pawelek
- Department of Dermatology and the Yale Cancer Center, Yale University School of Medicine, New Haven, CT 06520, United States
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43
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Choi Y, Yoo JH, Lee JH, Lee Y, Bae MK, Kim YD, Kim HJ. Connective tissue growth factor (CTGF) regulates the fusion of osteoclast precursors by inhibiting Bcl6 in periodontitis. Int J Med Sci 2020; 17:647-656. [PMID: 32210715 PMCID: PMC7085216 DOI: 10.7150/ijms.41075] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 02/11/2020] [Indexed: 11/28/2022] Open
Abstract
Connective tissue growth factor (CTGF), an extracellular matrix protein with various biological functions, is known to be upregulated in multiple chronic diseases such as liver fibrosis and congestive heart failure, but the mechanism it undertakes to cause alveolar bone loss in periodontitis remains elusive. The present study therefore investigates the pathways involving CTGF in chronic periodontitis. RNA sequencing revealed a notable increase in the expression of CTGF in chronic periodontitis tissues. Also, TRAP staining, TRAP activity and bone resorption assays showed that osteoclast formation and function is significantly facilitated in CTGF-treated bone marrow-derived macrophages (BMMs). Interestingly, western blotting and immunofluorescence staining results displayed that CTGF had little effect on the osteoclastogenic differentiation mediated by the positive regulators of osteoclastogenesis such as nuclear factor of activated T cells 1 (NFATc1). However, following results showed that both the mRNA and protein expressions of B cell lymphoma 6 (Bcl6), a transcriptional repressor of "osteoclastic" genes, were significantly downregulated by CTGF treatment. Moreover, CTGF upregulated the expressions of v-ATPase V0 subunit d2 (ATP6v0d2) and Dendritic cell-specific transmembrane protein (DC-STAMP) which are osteoclastic genes specifically required for osteoclast cell-cell fusion in pre-osteoclasts. Findings from this study suggest that CTGF promotes the fusion of pre-osteoclasts by downregulating Bcl6 and subsequently increasing the expression of DC-STAMP in periodontitis. Understanding this novel mechanism that leads to increased osteoclastogenesis in periodontitis may be employed for the development of new therapeutic targets for preventing periodontitis-associated alveolar bone resorption.
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Affiliation(s)
- YunJeong Choi
- Department of Oral Physiology, BK21 PLUS Project, Periodontal Diseases Signaling Network Research Center, and Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea, 50611
| | - Ji Hyun Yoo
- Department of Oral Physiology, BK21 PLUS Project, Periodontal Diseases Signaling Network Research Center, and Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea, 50611
| | - Jae-Hyung Lee
- Department of Maxillofacial Biomedical Engineering, School of Dentistry, Department of Life and Nanopharmaceutical Sciences, Kyung Hee Medical Science Institute, Kyung Hee University, Seoul, Republic of Korea, 02447
| | - Youngkyun Lee
- Department of Biochemistry, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea, 41940
| | - Moon-Kyoung Bae
- Department of Oral Physiology, BK21 PLUS Project, Periodontal Diseases Signaling Network Research Center, and Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea, 50611
| | - Yong-Deok Kim
- Department of Oral and Maxillofacial Surgery, Dental Research Institute, and Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea, 50611
| | - Hyung Joon Kim
- Department of Oral Physiology, BK21 PLUS Project, Periodontal Diseases Signaling Network Research Center, and Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea, 50611
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Meng J, Zhang W, Wang C, Zhang W, Zhou C, Jiang G, Hong J, Yan S, Yan W. Catalpol suppresses osteoclastogenesis and attenuates osteoclast-derived bone resorption by modulating PTEN activity. Biochem Pharmacol 2019; 171:113715. [PMID: 31751538 DOI: 10.1016/j.bcp.2019.113715] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 11/13/2019] [Indexed: 02/06/2023]
Abstract
Excessive activation of osteoclast activity is responsible for many bone diseases, such as osteoporosis, rheumatoid arthritis, periprosthetic osteolysis, and periodontitis. Natural compounds that inhibit osteoclast formation and/or function have therapeutic potential for treating these diseases. Catalpol, a bioactive iridoid extracted from a traditional herbal medicine Rehmannia glutinosa, exhibits various pharmacological properties, including anti-inflammatory, antioxidant, antidiabetic, and antitumor effects. However, its effects on osteoclast formation and function remain unknown. In the present study, we showed that catalpol inhibited receptor activator of nuclear factor-κB (NF-κB) ligand (RANKL)-induced osteoclast formation and bone resorption, as well as the expression of osteoclast-related marker genes. The investigation of molecular mechanisms showed that catalpol upregulated phosphatase and tensin homolog (PTEN) activity by reducing its ubiquitination and degradation, subsequently suppressing RANKL-induced NF-κB and AKT signaling pathways, leading to an inhibition on NFATc1 induction. Furthermore, catalpol protected mice against inflammation- and ovariectomy-induced bone loss by inhibiting osteoclast activity in vivo. These results suggest that catalpol might be developed as a promising candidate for treating osteoclast-related bone diseases.
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Affiliation(s)
- Jiahong Meng
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Wenkan Zhang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Cong Wang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Wei Zhang
- Department of Burns & Wound Care Center, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chenhe Zhou
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Guangyao Jiang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Jianqiao Hong
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Shigui Yan
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Orthopedic Research Institute of Zhejiang University, Hangzhou, China.
| | - Weiqi Yan
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Orthopedic Research Institute of Zhejiang University, Hangzhou, China.
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Anesi A, Generali L, Sandoni L, Pozzi S, Grande A. From Osteoclast Differentiation to Osteonecrosis of the Jaw: Molecular and Clinical Insights. Int J Mol Sci 2019; 20:ijms20194925. [PMID: 31590328 PMCID: PMC6801843 DOI: 10.3390/ijms20194925] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 09/27/2019] [Accepted: 09/30/2019] [Indexed: 01/05/2023] Open
Abstract
Bone physiology relies on the delicate balance between resorption and formation of its tissue. Bone resorption depends on a process called osteoclastogenesis in which bone-resorbing cells, i.e., osteoclasts, are produced by the differentiation of more undifferentiated progenitors and precursors. This process is governed by two main factors, monocyte-colony stimulating factor (M-CSF) and receptor activator of NFκB ligand (RANKL). While the former exerts a proliferating effect on progenitors/precursors, the latter triggers a differentiation effect on more mature cells of the same lineage. Bone homeostasis requires a perfect space–time coordination of the involved signals. When osteoclastogenesis is poorly balanced with the differentiation of the bone forming counterparts, i.e., osteoblasts, physiological bone remodelling can turn into a pathological state, causing the systematic disruption of bone tissue which results in osteopenia or osteolysis. Examples of these conditions are represented by osteoporosis, Paget’s disease, bone metastasis, and multiple myeloma. Therefore, drugs targeting osteoclastogenesis, such as bisphosphonates and an anti-RANKL monoclonal antibody, have been developed and are currently used in the treatment of such diseases. Despite their demonstrated therapeutic efficacy, these agents are unfortunately not devoid of side effects. In this regard, a condition called osteonecrosis of the jaw (ONJ) has been recently correlated with anti-resorptive therapy. In this review we will address the involvement of osteoclasts and osteoclast-related factors in the pathogenesis of ONJ. It is to be hoped that a better understanding of the biological mechanisms underlying bone remodelling will help in the design a medical therapeutic approach for ONJ as an alternative to surgical procedures.
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Affiliation(s)
- Alexandre Anesi
- Department of Medical and Surgical Sciences for Children & Adults, University of Modena and Reggio Emilia, Via del Pozzo 71, 41124 Modena, Italy.
| | - Luigi Generali
- Department of Surgery, Medicine, Dentistry and Morphological Sciences with Transplant Surgery, Oncology and Regenerative Medicine Relevance, University of Modena and Reggio Emilia, 41121 Modena, Italy.
| | - Laura Sandoni
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Via Giuseppe Campi 287, 41125 Modena, Italy.
| | - Samantha Pozzi
- Department of Medical and Surgical Sciences for Children & Adults, University of Modena and Reggio Emilia, Via del Pozzo 71, 41124 Modena, Italy.
| | - Alexis Grande
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Via Giuseppe Campi 287, 41125 Modena, Italy.
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Cho E, Chen Z, Lee J, Lee S, Lee TH. PSTP-3,5-Me Inhibits Osteoclast Differentiation and Bone Resorption. Molecules 2019; 24:molecules24183346. [PMID: 31540026 PMCID: PMC6767254 DOI: 10.3390/molecules24183346] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 09/12/2019] [Indexed: 01/08/2023] Open
Abstract
Osteogenesis is an orchestrated process regulated by osteoclastogenesis and osteoblastogenesis. Excessive osteoclastogenesis causes bone diseases, such as osteoporosis. Although a few drugs are effective in osteoporosis treatment, these drugs lead to side effects, including cellulitis, flatulence, and hypocalcemia. In this study, we reported a 2-(N-Phenylmethylsulfonamido)-N-(2-(phenylthio)phenyl)propanamide (PSTP) compound, PSTP-3,5-Me, as a potential therapeutic agent for osteoporosis. Mouse bone marrow-derived macrophages (BMMs) were differentiated into osteoclasts by receptor activator of nuclear factor kappa B ligand (RANKL) and macrophage colony-stimulating factor (M-CSF) in the presence of PSTP-3,5-Me. PSTP-3,5-Me inhibited osteoclast differentiation by reduced tartrate-resistant acid phosphatase (TRAP)-positive osteoclasts, and suppressed the expression of osteoclast marker genes, such as cathepsin K (Ctsk) and TRAP (Acp5). We investigated signaling pathways mediated by RANKL and its receptor, RANK, and found that PSTP-3,5-Me inhibits nucleus translocation of nuclear factor of activated T cell cytoplasmic-1 (NFATc1). Moreover, PSTP-3,5-Me inhibited F-actin ring formation and mineral resorption. Overall, our data suggests that PSTP-3,5-Me attenuates osteoclast differentiation by blocking the activation of NFATc1.
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Affiliation(s)
- Eunjin Cho
- Department of Oral Biochemistry, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju 61186, Korea.
| | - Zhihao Chen
- Department of Molecular Medicine (BK21plus), Chonnam National University Graduate School, Gwangju 61186, Korea.
| | - Jinkyung Lee
- Department of Oral Biochemistry, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju 61186, Korea.
| | - Sunwoo Lee
- Department of Chemistry, Chonnam National University, Gwangju 61186, Korea.
| | - Tae-Hoon Lee
- Department of Oral Biochemistry, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju 61186, Korea.
- Department of Molecular Medicine (BK21plus), Chonnam National University Graduate School, Gwangju 61186, Korea.
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47
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Meng J, Zhou C, Zhang W, Wang W, He B, Hu B, Jiang G, Wang Y, Hong J, Li S, He J, Yan S, Yan W. Stachydrine prevents LPS-induced bone loss by inhibiting osteoclastogenesis via NF-κB and Akt signalling. J Cell Mol Med 2019; 23:6730-6743. [PMID: 31328430 PMCID: PMC6787569 DOI: 10.1111/jcmm.14551] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 06/10/2019] [Accepted: 06/15/2019] [Indexed: 12/17/2022] Open
Abstract
Osteoclast overactivation‐induced imbalance in bone remodelling leads to pathological bone destruction, which is a characteristic of many osteolytic diseases such as rheumatoid arthritis, osteoporosis, periprosthetic osteolysis and periodontitis. Natural compounds that suppress osteoclast formation and function have therapeutic potential for treating these diseases. Stachydrine (STA) is a bioactive alkaloid isolated from Leonurus heterophyllus Sweet and possesses antioxidant, anti‐inflammatory, anticancer and cardioprotective properties. However, its effects on osteoclast formation and function have been rarely described. In the present study, we found that STA suppressed receptor activator of nuclear factor‐κB (NF‐κB) ligand (RANKL)‐induced osteoclast formation and bone resorption, and reduced osteoclast‐related gene expression in vitro. Mechanistically, STA inhibited RANKL‐induced activation of NF‐κB and Akt signalling, thus suppressing nuclear factor of activated T cells c1 induction and nuclear translocation. In addition, STA alleviated bone loss and reduced osteoclast number in a murine model of LPS‐induced inflammatory bone loss. STA also inhibited the activities of NF‐κB and NFATc1 in vivo. Together, these results suggest that STA effectively inhibits osteoclastogenesis both in vitro and in vivo and therefore is a potential option for treating osteoclast‐related diseases.
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Affiliation(s)
- Jiahong Meng
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Chenhe Zhou
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Wenkan Zhang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Wei Wang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Bin He
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Bin Hu
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Guangyao Jiang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Yangxin Wang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Jianqiao Hong
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Sihao Li
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Jiamin He
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Shigui Yan
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Weiqi Yan
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China
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48
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Coudert AE, Redelsperger F, Chabbi-Achengli Y, Vernochet C, Marty C, Decrouy X, Heidmann T, de Vernejoul MC, Dupressoir A. Role of the captured retroviral envelope syncytin-B gene in the fusion of osteoclast and giant cell precursors and in bone resorption, analyzed ex vivo and in vivo in syncytin-B knockout mice. Bone Rep 2019; 11:100214. [PMID: 31360740 PMCID: PMC6637224 DOI: 10.1016/j.bonr.2019.100214] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 07/09/2019] [Indexed: 12/23/2022] Open
Abstract
Syncytin-A and -B are envelope genes of retroviral origin that have been captured in evolution for a role in placentation. They trigger cell-cell fusion and were shown to be essential for the formation of the syncytiotrophoblast layer during mouse placenta formation. Syncytin-A and -B expression has been described in other tissues and their highly fusogenic properties suggested that they might be involved in the fusion of other cell types. Here, taking advantage of mice knocked out for syncytin-B, SynB-/- mice, we investigated the potential role of syncytin-B in the fusion of cells from the monocyte/macrophage lineage into multinucleated osteoclasts (OCs) -in bone- or multinucleated giant cells -in soft tissues. In ex vivo experiments, a significant reduction in fusion index and in the number of multinucleated OCs and giant cells was observed as soon as Day3 in SynB-/- as compared to wild-type cell cultures. Interestingly, the number of nuclei per multinucleated OC or giant cell remained unchanged. These results, together with the demonstration that syncytin-B expression is maximal in the first 2 days of OC differentiation, argue for syncytin-B playing a role in the fusion of OC and giant cell mononucleated precursors, at initial stages. Finally, ex vivo, the observed reduction in multinucleated OC number had no impact on the expression of OC differentiation markers, and a dentin resorption assay did not evidence any difference in the osteoclastic resorption activity, suggesting that syncytin-B is not required for OC activity. In vivo, syncytin-B was found to be expressed in the periosteum of embryos at embryonic day 16.5, where TRAP-positive cells were observed. Yet, in adults, no significant reduction in OC number or alteration in bone phenotype was observed in SynB-/- mice. In addition, SynB-/- mice did not show any change in the number of foreign body giant cells (FBGCs) that formed in response to implantation of foreign material, as compared to wild-type mice. Altogether the results suggest that in addition to its essential role in placenta formation, syncytin-B plays a role in OCs and macrophage fusion; yet it is not essential in vivo for OC and FBGC formation, or maintenance of bone homeostasis, at least under the conditions tested.
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Affiliation(s)
- Amélie E Coudert
- BIOSCAR, Unité Mixte de Recherche 1132, Institut National de la Santé et de la Recherche Médicale, Hôpital Lariboisière, Paris 75010, France.,Laboratoire de Physiopathologie Orale Moléculaire, INSERM U1138, Centre de recherche des Cordeliers, UFR d'Odontologie Garancire, Université Paris Diderot, Paris 75006, France
| | - François Redelsperger
- Unité Physiologie et Pathologie Moléculaires des Rétrovirus Endogènes et Infectieux, Unité Mixte de Recherche 9196, Centre National de la Recherche Scientifique, Gustave Roussy, Villejuif, 94805, and Université Paris-Sud, Orsay, 91405, France
| | - Yasmine Chabbi-Achengli
- BIOSCAR, Unité Mixte de Recherche 1132, Institut National de la Santé et de la Recherche Médicale, Hôpital Lariboisière, Paris 75010, France
| | - Cécile Vernochet
- Unité Physiologie et Pathologie Moléculaires des Rétrovirus Endogènes et Infectieux, Unité Mixte de Recherche 9196, Centre National de la Recherche Scientifique, Gustave Roussy, Villejuif, 94805, and Université Paris-Sud, Orsay, 91405, France
| | - Caroline Marty
- BIOSCAR, Unité Mixte de Recherche 1132, Institut National de la Santé et de la Recherche Médicale, Hôpital Lariboisière, Paris 75010, France
| | - Xavier Decrouy
- Inserm, U955, Plateforme d'imagerie, Créteil, 9400, France and Université Paris Est, Faculté de médecine, Créteil, 94000, France
| | - Thierry Heidmann
- Unité Physiologie et Pathologie Moléculaires des Rétrovirus Endogènes et Infectieux, Unité Mixte de Recherche 9196, Centre National de la Recherche Scientifique, Gustave Roussy, Villejuif, 94805, and Université Paris-Sud, Orsay, 91405, France
| | - Marie-Christine de Vernejoul
- BIOSCAR, Unité Mixte de Recherche 1132, Institut National de la Santé et de la Recherche Médicale, Hôpital Lariboisière, Paris 75010, France
| | - Anne Dupressoir
- Unité Physiologie et Pathologie Moléculaires des Rétrovirus Endogènes et Infectieux, Unité Mixte de Recherche 9196, Centre National de la Recherche Scientifique, Gustave Roussy, Villejuif, 94805, and Université Paris-Sud, Orsay, 91405, France
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Wehrhan F, Gross C, Creutzburg K, Amann K, Ries J, Kesting M, Geppert CI, Weber M. Osteoclastic expression of higher-level regulators NFATc1 and BCL6 in medication-related osteonecrosis of the jaw secondary to bisphosphonate therapy: a comparison with osteoradionecrosis and osteomyelitis. J Transl Med 2019; 17:69. [PMID: 30832685 PMCID: PMC6398259 DOI: 10.1186/s12967-019-1819-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Accepted: 02/21/2019] [Indexed: 11/10/2022] Open
Abstract
Background With an increasing indication spectrum of antiresorptive drugs, the medication-related osteonecrosis of the jaw secondary to bisphosphonate therapy [MRONJ (BP)] is continuously gaining clinical relevance. Impaired osteoclast function, accompanied by altered cell morphology and expression of osteoclastic effector proteins, contributes to the pathogenesis of MRONJ (BP). However, the underlying regulatory mechanisms at a transcriptional level are unaddressed so far. These mechanisms are crucial to the development of disease-characteristic osteoclastic anomalies, that contribute to the pathogenesis of MRONJ (BP). NFATc1 is considered a master upstream osteoclastic activator, whereas BCL6 acts as osteoclastic suppressor. The present study aimed to elucidate the NFATc1 and BCL6 mediated osteoclastic regulation and activity in MRONJ (BP) compared to osteoradionecrosis (ORN) and osteomyelitis (OM) and normal jaw bone. Methods Formalin-fixed jaw bone specimens from 70 patients [MRONJ (BP) n = 30; OM: n = 15, ORN: n = 15, control: n = 10] were analyzed retrospectively for osteoclast expression of NFATc1 and BCL6. The specimens were processed for H&E staining and immunohistochemistry. The histological sections were digitalized and analyzed by virtual microscopy. Results Osteoclastic expression of NFATc1 and BCL6 was significantly higher in MRONJ (BP) specimens compared to OM and control specimens. NFATc1 and BCL6 labeling indices revealed no significant differences between MRONJ (BP) and ORN. The ratio of nuclear BCL6+ osteoclasts to cytoplasmic BCL6+ osteoclasts revealed significantly higher values for MRONJ (BP) specimens compared to OM and controls. Conclusion This study displays that osteoclasts in MRONJ (BP) tissues feature increased expression of the higher-level regulators, paradoxically of both NFATc1 and BCL6. These observations can help to explain the genesis of morphologically altered and resorptive inactive osteoclasts in MRONJ (BP) tissues by outlining the transcriptional regulation of the pathomechanically relevant osteoclastic effector proteins. Furthermore, they strengthen the etiological delineation of MRONJ (BP) from OM and extend the osteoclast profiles of MRONJ (BP), OM and ORN and thus could lead to a better histopathological differentiation that can improve treatment decision and motivate new therapeutic concepts.
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Affiliation(s)
- Falk Wehrhan
- Department of Oral and Maxillofacial Surgery, Friedrich-Alexander University Erlangen-Nürnberg, Glückstraße 11, 91054, Erlangen, Germany
| | - Christian Gross
- Department of Oral and Maxillofacial Surgery, Friedrich-Alexander University Erlangen-Nürnberg, Glückstraße 11, 91054, Erlangen, Germany
| | - Kay Creutzburg
- Department of Oral and Maxillofacial Surgery, Friedrich-Alexander University Erlangen-Nürnberg, Glückstraße 11, 91054, Erlangen, Germany
| | - Kerstin Amann
- Department of Nephropathology, Institute of Pathology, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Jutta Ries
- Department of Oral and Maxillofacial Surgery, Friedrich-Alexander University Erlangen-Nürnberg, Glückstraße 11, 91054, Erlangen, Germany
| | - Marco Kesting
- Department of Oral and Maxillofacial Surgery, Friedrich-Alexander University Erlangen-Nürnberg, Glückstraße 11, 91054, Erlangen, Germany
| | - Carol-Immanuel Geppert
- Institute of Pathology, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Manuel Weber
- Department of Oral and Maxillofacial Surgery, Friedrich-Alexander University Erlangen-Nürnberg, Glückstraße 11, 91054, Erlangen, Germany.
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50
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Lycopus lucidus Turcz Inhibits the Osteoclastogenesis in RAW 264.7 Cells and Bone Loss in Ovariectomized Rat Model. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:3231784. [PMID: 30915145 PMCID: PMC6409043 DOI: 10.1155/2019/3231784] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 10/24/2018] [Accepted: 11/04/2018] [Indexed: 12/18/2022]
Abstract
Lycopus lucidus (LL) is a perennial herb that is traditionally used in Asia to treat edema, wound healing, and gynecological diseases such as irregular menstruation and menstrual pain. We hypothesized that LL would decrease the risk of developing osteoporosis, which is a condition related to gynecological diseases. In this study, we aimed to investigate the effect of a water extract of LL on osteoclastogenesis in vitro and osteoporosis in vivo. In vitro study, we used RAW 264.7 cells as osteoclast precursor cell. Osteoclast differentiation was induced by receptor activator nuclear factor-kappa B ligand (RANKL). We investigated the effect of LL on RANKL-induced osteoclastogenesis, tartrate-resistant acid phosphatase (TRAP) activity, and osteoclast-related genes. In vivo study, we used ovariectomized- (OVX-) induced osteoporosis rat model. OVX-induced Sprague-Dawley rats were randomly separated into sham, OVX, 17β-estradiol (100 μg/kg), wLL-L (15.2 mg/kg), and wLL-H (152 mg/kg) groups. Drugs were administered orally once daily for 9 weeks. wLL inhibited the formation of TRAP-positive osteoclasts; TRAP activity; pit formation; transcription factors (the nuclear factor of activated T-cell cytoplasmic 1 and c-fos); and osteoclast-related genes such as TRAP, carbonic anhydrase II, cathepsin K, osteoclast-associated receptor, and the d2 isoform of the vacuolar ATPase Vo domain. Also, wLL prevented loss of the trabecular area in the OVX femur without change of estrogen level. These results indicate that wLL is able to inhibit osteoclastogenesis and protect bone loss in the OVX-induced osteoporosis model without the influence of hormones like estrogen.
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