51
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Ye W, Wang Y, Hou S, Mei B, Liu X, Huang H, Zhou Q, Niu Y, Chen Y, Zhang M, Huang Q. USF3 modulates osteoporosis risk by targeting WNT16, RANKL, RUNX2, and two GWAS lead SNPs rs2908007 and rs4531631. Hum Mutat 2020; 42:37-49. [PMID: 33058301 DOI: 10.1002/humu.24126] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/09/2020] [Accepted: 10/05/2020] [Indexed: 01/15/2023]
Abstract
Osteoporotic fractures cause major morbidity and mortality in the aging population. Genome-wide association studies (GWAS) have identified USF3 as the novel susceptibility gene of osteoporosis. However, the functional role in bone metabolism and the target gene of the basic helix-loop-helix transcription factor USF3 are unclear. Here, we show that USF3 enhances osteoblast differentiation and suppresses osteoclastogenesis in cultured human osteoblast-like U-2OS cells. Mechanistic studies revealed that transcription factor USF3 antagonistically interacts with anti-osteogenic TWIST1/TCF12 heterodimer in the WNT16 and RUNX2 promoter, and counteracts CREB1 and JUN/FOS in the RANKL promoter. Importantly, the osteoporosis GWAS variant g.1744A>G (rs2908007A>G) located in the WNT16 promoter confers G-allele-specific transcriptional modulation by USF3, TWIST1/TCF12 and TBX5/TBX15, and USF3 transactivates the osteoclastogenesis suppressor WNT16 promoter activity and antagonizes the repression of WNT16 by TWIST1 and TCF12. The risk G allele of osteoporosis GWAS variant g.3260A>G (rs4531631A>G) in the RANKL promoter facilitates the binding of CREB1 and JUN/FOS and enhances transactivation of the osteoclastogenesis contributor RANKL that is inhibited by USF3. Our findings uncovered the functional mechanisms of osteoporosis novel GWAS-associated gene USF3 and lead single nucleotide polymorphisms rs2908007 and rs4531631 in the regulation of bone formation and resorption.
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Affiliation(s)
- Weiyuan Ye
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, China
| | - Ya Wang
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, China
| | - Sasa Hou
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, China
| | - Bing Mei
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, China
| | - Xinhong Liu
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, China
| | - Han Huang
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, China
| | - Qian Zhou
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, China
| | - Yajing Niu
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, China
| | - Yuanyuan Chen
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, China
| | - Manling Zhang
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, China
| | - Qingyang Huang
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, China
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52
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Wang L, Han L, Xue P, Hu X, Wong SW, Deng M, Tseng HC, Huang BW, Ko CC. Dopamine suppresses osteoclast differentiation via cAMP/PKA/CREB pathway. Cell Signal 2020; 78:109847. [PMID: 33242564 DOI: 10.1016/j.cellsig.2020.109847] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 11/08/2020] [Accepted: 11/20/2020] [Indexed: 01/08/2023]
Abstract
How the nervous system regulates bone remodeling is an exciting area of emerging research in bone biology. Accumulating evidence suggest that neurotransmitter-mediated inputs from neurons may act directly on osteoclasts. Dopamine is a neurotransmitter that can be released by hypothalamic neurons to regulate bone metabolism through the hypothalamic-pituitary-gonadal axis. Dopamine is also present in sympathetic nerves that penetrate skeletal structures throughout the body. It has been shown that dopamine suppresses osteoclast differentiation via a D2-like receptors (D2R)-dependent manner, but the intracellular secondary signaling pathway has not been elucidated. In this study, we found that cAMP-response element binding protein (CREB) activity responds to dopamine treatment during osteoclastogenesis. Considering the critical role of CREB in osteoclastogenesis, we hypothesize that CREB may be a critical target in dopamine's regulation of osteoclast differentiation. We confirmed that D2R is also present in RAW cells and activated by dopamine. Binding of dopamine to D2R inhibits the cyclic adenosine monophosphate (cAMP)/protein kinase A (PKA) signaling pathway which ultimately decreases CREB phosphorylation during osteoclastogenesis. This was also associated with diminished expression of osteoclast markers that are downstream of CREB. Pharmacological activation of adenylate cyclase (to increase cAMP production) and PKA reverses the effect of dopamine on CREB activity and osteoclastogenesis. Therefore, we have identified D2R/cAMP/PKA/CREB as a candidate pathway that mediates dopamine's inhibition of osteoclast differentiation. These findings will contribute to our understanding of how the nervous and skeletal systems interact to regulate bone remodeling. This will enable future work toward elucidating the role of the nervous system in bone development, repair, aging, and degenerative disease.
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Affiliation(s)
- Lufei Wang
- Division of Oral and Craniofacial Health Sciences, University of North Carolina Adams School of Dentistry, Chapel Hill, NC, United States
| | - Lichi Han
- Department of Oral Medicine, Medical College, Dalian University, Dalian, China
| | - Peng Xue
- Division of Oral and Craniofacial Health Sciences, University of North Carolina Adams School of Dentistry, Chapel Hill, NC, United States
| | - Xiangxiang Hu
- Division of Oral and Craniofacial Health Sciences, University of North Carolina Adams School of Dentistry, Chapel Hill, NC, United States
| | - Sing-Wai Wong
- Division of Comprehensive Oral Health, University of North Carolina Adams School of Dentistry, Chapel Hill, NC, United States
| | - Meng Deng
- Division of Craniofacial and Surgical Care, University of North Carolina Adams School of Dentistry, Chapel Hill, NC, United States
| | - Henry C Tseng
- Duke Eye Center and Department of Ophthalmology, Duke University Medical Center, Durham, NC, United States
| | - Bo-Wen Huang
- Division of Orthodontics, The Ohio State University College of Dentistry, Columbus, OH, United States
| | - Ching-Chang Ko
- Division of Orthodontics, The Ohio State University College of Dentistry, Columbus, OH, United States.
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53
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Lee HY, Cho KM, Kim MK, Lee M, Kim H, Choi CY, Kim KK, Park JS, Kim HH, Bae YS. Sphingosylphosphorylcholine blocks ovariectomy-induced bone loss by suppressing Ca 2+ /calmodulin-mediated osteoclast differentiation. J Cell Mol Med 2020; 25:473-483. [PMID: 33230972 PMCID: PMC7810965 DOI: 10.1111/jcmm.16101] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 09/29/2020] [Accepted: 11/01/2020] [Indexed: 12/19/2022] Open
Abstract
Osteoporosis is a disease in which bone mineral density decreases due to abnormal activity of osteoclasts, and is commonly found in post‐menopausal women who have decreased levels of female hormones. Sphingosylphosphorylcholine (SPC) is an important biological lipid that can be converted to sphingosine‐1‐phosphate (S1P) by autotaxin. S1P is known to be involved in osteoclast activation by stimulating osteoblasts, but bone regulation by SPC is not well understood. In this study, we found that SPC strongly inhibits RANKL‐induced osteoclast differentiation. SPC‐induced inhibitory effects on osteoclast differentiation were not affected by several antagonists of S1P receptors or pertussis toxin, suggesting cell surface receptor independency. However, SPC inhibited RANKL‐induced calcineurin activation and subsequent NFATc1 activity, leading to decrease of the expression of Trap and Ctsk. Moreover, we found that bone loss in an experimental osteoporosis mouse model was recovered by SPC injection. SPC also blocked ovariectomy‐induced body weight increase and Nfatc1 gene expression in mice. We also found that SPC inhibits RANKL‐induced osteoclast differentiation in human macrophages. Since currently available treatments for osteoporosis, such as administration of female hormones or hormone receptor modulators, show serious side effects, SPC has potential as a new agent for osteoporosis treatment.
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Affiliation(s)
- Ha Young Lee
- Department of Biological Sciences, Sungkyunkwan University, Suwon, Korea
| | - Kwang Min Cho
- Department of Biological Sciences, Sungkyunkwan University, Suwon, Korea
| | - Min Kyung Kim
- Department of Cell and Developmental Biology, BK21 Program and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Mingyu Lee
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, Korea
| | - Hun Kim
- Department of Precision Medicine, Institute for Antimicrobial Resistance Research and Therapeutics, Sungkyunkwan University School of Medicine, Suwon, Korea
| | - Cheol Yong Choi
- Department of Biological Sciences, Sungkyunkwan University, Suwon, Korea
| | - Kyeong Kyu Kim
- Department of Precision Medicine, Institute for Antimicrobial Resistance Research and Therapeutics, Sungkyunkwan University School of Medicine, Suwon, Korea
| | - Joon Seong Park
- Department of Hematology-Oncology, Ajou University School of Medicine, Suwon, Korea
| | - Hong-Hee Kim
- Department of Cell and Developmental Biology, BK21 Program and Dental Research Institute, Seoul National University, Seoul, 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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54
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Ding N, Lu Y, Cui H, Ma Q, Qiu D, Wei X, Dou C, Cao N. Physalin D inhibits RANKL-induced osteoclastogenesis and bone loss via regulating calcium signaling. BMB Rep 2020. [PMID: 31964464 PMCID: PMC7118355 DOI: 10.5483/bmbrep.2020.53.3.147] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We investigated the effects of physalin A, B, D, and F on osteoclastogenesis induced by receptor activator of nuclear factor kB ligand (RANKL). The biological functions of different physalins were first predicted using an in silico bioinformatic tool (BATMAN-TCM). Afterwards, we tested cell viability and cell apoptosis rate to analyze the cytotoxicity of different physalins. We analyzed the inhibitory effects of physalins on RANKL-induced osteoclastogenesis from mouse bone-marrow macrophages (BMMs) using a tartrate-resistant acid phosphatase (TRAP) stain. We found that physalin D has the best selectivity index (SI) among all analyzed physalins. We then confirmed the inhibitory effects of physalin D on osteoclast maturation and function by immunostaining of F-actin and a pit-formation assay. On the molecular level, physalin D attenuated RANKL- evoked intracellular calcium ([Ca(2+)](i)) oscillation by inhibiting phosphorylation of phospholipase Cγ2 (PLCγ2) and thus blocked the downstream activation of Ca2+/calmodulin- dependent protein kinases (CaMK)IV and cAMP-responsive element-binding protein (CREB). An animal study showed that physalin D treatment rescues bone microarchitecture, prevents bone loss, and restores bone strength in a model of rapid bone loss induced by soluble RANKL. Taken together, these results suggest that physalin D inhibits RANKL-induced osteoclastogenesis and bone loss via suppressing the PLCγ2-CaMK-CREB pathway.
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Affiliation(s)
- Ning Ding
- Department of Blood Purification, General Hospital of Shenyang Military Area Command, Shenyang 110000, China
| | - Yanzhu Lu
- Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Hanmin Cui
- Department of Blood Purification, General Hospital of Shenyang Military Area Command, Shenyang 110000, China
| | - Qinyu Ma
- Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Dongxia Qiu
- Department of Blood Purification, General Hospital of Shenyang Military Area Command, Shenyang 110000, China
| | - Xueting Wei
- Department of Blood Purification, General Hospital of Shenyang Military Area Command, Shenyang 110000, China
| | - Ce Dou
- Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Ning Cao
- Department of Blood Purification, General Hospital of Shenyang Military Area Command, Shenyang 110000, China
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55
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Wu L, Lin W, Liao Q, Wang H, Lin C, Tang L, Lian W, Chen Z, Li K, Xu L, Zhou R, Ding Y, Zhao L. Calcium Channel Blocker Nifedipine Suppresses Colorectal Cancer Progression and Immune Escape by Preventing NFAT2 Nuclear Translocation. Cell Rep 2020; 33:108327. [PMID: 33113363 DOI: 10.1016/j.celrep.2020.108327] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 08/17/2020] [Accepted: 10/07/2020] [Indexed: 12/15/2022] Open
Abstract
Abnormal activation of calcium channels has been shown to play crucial roles in tumor occurrence and development. However, the role of inhibitors targeting calcium channels in tumor progression and immune regulation remains unclear, and their clinical applications are still limited. We show that nifedipine (NIFE), a calcium channel blocker, inhibits calcium influx to impair nuclear factor of activated T cell 2 (NFAT2) dephosphorylation, activation, and nuclear translocation, thus preventing transcriptional activation of downstream signaling molecules to suppress colorectal cancer (CRC) proliferation and metastasis. In addition, NIFE decreases expression of programmed death-ligand 1 (PD-L1) on CRC cells and programmed death-1 (PD-1) on CD8+ T cells and reactivates tumor immune monitoring, which may stimulate or enhance PD-1-based antitumor immunotherapy. Our findings provide direct evidence that NIFE is a promising clinical therapy to treat patients with advanced CRC by affecting the tumor itself and tumor immunity. NIFE may be a promising therapeutic option to enhance effectiveness of immune checkpoint blockade therapy in CRC.
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Affiliation(s)
- Ling Wu
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, Southern Medical University, Guangzhou, China
| | - Weihao Lin
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, Southern Medical University, Guangzhou, China
| | - Qing Liao
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, Southern Medical University, Guangzhou, China
| | - Hui Wang
- Department of Medical Oncology, Affiliated Tumor Hospital of Guangzhou Medical University, Guangzhou, China
| | - Chuang Lin
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Lihua Tang
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, Southern Medical University, Guangzhou, China
| | - Weidong Lian
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, Southern Medical University, Guangzhou, China
| | - Zetao Chen
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, Southern Medical University, Guangzhou, China
| | - Kaitao Li
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, Southern Medical University, Guangzhou, China
| | - Lijun Xu
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, Southern Medical University, Guangzhou, China
| | - Rui Zhou
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, Southern Medical University, Guangzhou, China
| | - Yanqing Ding
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, Southern Medical University, Guangzhou, China.
| | - Liang Zhao
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, Southern Medical University, Guangzhou, China.
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56
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Al-Bari AA, Al Mamun A. Current advances in regulation of bone homeostasis. FASEB Bioadv 2020; 2:668-679. [PMID: 33205007 PMCID: PMC7655096 DOI: 10.1096/fba.2020-00058] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 08/18/2020] [Accepted: 08/21/2020] [Indexed: 02/06/2023] Open
Abstract
Bone homeostasis is securely controlled by the dynamic well‐balanced actions among osteoclasts, osteoblasts and osteocytes. Osteoclasts are large multinucleated cells that degrade bone matrix and involve in the bone remodelling in conjunction with other bone cells, osteoblasts and osteocytes, the completely matured form of osteoblasts. Disruption of this controlling balance among these cells or any disparity in bone remodelling caused by a higher rate of resorption by osteoclasts over construction of bone by osteoblasts results in a reduction of bone matrix including bone mineral density (BMD) and bone marrow cells (BMCs). The dominating effect of osteoclasts results in advanced risk of bone crack and joint destruction in several diseases including osteoporosis and rheumatoid arthritis (RA). However, the boosted osteoblastic activity produces osteosclerotic phenotype and weakened its action primes to osteomalacia or rickets. On the other hand, senescent osteocytes predominately progress the senescence associated secretory phenotype (SASP) and may contribute to age related bone loss. Here, we discuss an advanced level work on newly identified cellular mechanisms controlling the remodelling of bone and crosstalk among bone cells as these relate to the therapeutic targeting of the skeleton.
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Affiliation(s)
| | - Abdullah Al Mamun
- Department of Genetic Engineering and Biotechnology Shahjalal University of Science and Technology Sylhet Bangladesh
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57
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Sharma S, Mahajan A, Mittal A, Gohil R, Sachdeva S, Khan S, Dhillon M. Epigenetic and transcriptional regulation of osteoclastogenesis in the pathogenesis of skeletal diseases: A systematic review. Bone 2020; 138:115507. [PMID: 32610074 DOI: 10.1016/j.bone.2020.115507] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 06/21/2020] [Accepted: 06/22/2020] [Indexed: 12/20/2022]
Abstract
OBJECTIVES To identify epigenetic and transcriptional factors controlling osteoclastogenesis (OCG), that have been shown to play a role in the pathogenesis of skeletal diseases. METHODS A systematic review was conducted in accordance with the PRISMA guidelines. The PubMed and EMBASE databases were searched up to 30th April 2020; references of included articles and pertinent review articles were also screened to identify eligible studies. Studies were included if they described epigenetic and/or transcriptional regulation of OCG in a specific skeletal disorder, and quantified alterations in OCG by any well-described experimental method. Risk of bias was assessed by a previously described modification of the CAMARADES tool. RESULTS The combined searches yielded 2265 records. Out of these, 24 studies investigating 12 different skeletal disorders were included in the review. Osteoporosis, followed by osteopetrosis, was the most commonly evaluated disorder. A total of 22 different epigenetic and transcriptional regulators of OCG were identified; key epigenetic regulators included DNA methylation, histone methylation, histone acetylation, miRNAs and lncRNAs. In majority of the disorders, dysregulated OCG was noted to occur at the stage of formation of committed osteoclast from preosteoclast. Dysregulation the stage of formation of the preosteoclast from late monocyte was noted in rheumatoid arthritis and fracture, whereas dysregulation at stage of formation of late monocyte from early monocyte was noted in osteopetrosis and spondyloarthritis. Quality assessment revealed a high risk of bias in domains pertaining to randomization, allocation concealment, blinding of outcome assessors and determination of sample size. CONCLUSIONS A variety of epigenetic and transcriptional factors can result in dysregulated osteoclastogenesis in different skeletal disorders. Dysregulation can occur at any stage; however, the formation of committed osteoclasts from preosteoclasts is the most common target. Although the published literature on this subject seems promising, the overall strength of evidence is limited by the small number of studies evaluating individual skeletal disorders, and also by deficiencies in key aspects of study design.
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Affiliation(s)
- Siddhartha Sharma
- Department of Orthopedics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Aditi Mahajan
- Department of Biophysics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Anupam Mittal
- Department of Translational and Regenerative Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India..
| | - Riddhi Gohil
- Department of Orthopedics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sunny Sachdeva
- Department of Orthopedics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Shahnawaz Khan
- Department of Orthopedics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Mandeep Dhillon
- Department of Orthopedics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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58
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Al-Bari MAA, Hossain S, Mia U, Al Mamun MA. Therapeutic and Mechanistic Approaches of Tridax Procumbens Flavonoids for the Treatment of Osteoporosis. Curr Drug Targets 2020; 21:1687-1702. [PMID: 32682372 DOI: 10.2174/1389450121666200719012116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 06/16/2020] [Accepted: 06/17/2020] [Indexed: 11/22/2022]
Abstract
Homeostasis of bone is closely regulated by the balanced activities between the bone resorbing activity of osteoclast cells and bone-forming ability of osteoblast cells. Multinucleated osteoclasts degrade bone matrix and involve in the dynamic bone remodelling in coordination with osteoblasts. Disruption of this regulatory balance between these cells or any imbalance in bone remodelling caused by a higher rate of resorption over construction of bone results in a decrease of bone matrix including bone mineral density (BMD). These osteoclast-dominant effects result in a higher risk of bone crack and joint demolition in several bone-related diseases, including osteoporosis and rheumatoid arthritis (RA). Tridax procumbens is a very interesting perennial plant and its secondary metabolites called here T. procumbens flavonoids (TPFs) are well-known phytochemical agents owing to various therapeutic practices such as anti-inflammatory, anti-anaemic and anti-diabetic actions. This review designed to focus the systematic convention concerning the medicinal property and mechanism of actions of TPFs for the management of bone-related diseases. Based on the current literature, the review offers evidence-based information of TPFs for basic researchers and clinicians for the prevention and treatment of bone related diseases, including osteoporosis. It also emphasizes the medical significance for more research to comprehend the cellular signalling pathways of TPFs for the regulation of bone remodelling and discusses the possible promising ethnobotanical resource that can convey the preclinical and clinical clues to develop the next generation therapeutic agents for the treatment of bonerelated disorders.
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Affiliation(s)
| | - Showna Hossain
- Department of Pharmacy, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Ujjal Mia
- Department of Pharmacy, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Md Abdullah Al Mamun
- Department of Genetic Engineering and Biotechnology, Shahjalal University of Science and Technology, Sylhet-3114, Bangladesh
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59
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Győri DS, Mócsai A. Osteoclast Signal Transduction During Bone Metastasis Formation. Front Cell Dev Biol 2020; 8:507. [PMID: 32637413 PMCID: PMC7317091 DOI: 10.3389/fcell.2020.00507] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 05/27/2020] [Indexed: 12/18/2022] Open
Abstract
Osteoclasts are myeloid lineage-derived bone-resorbing cells of hematopoietic origin. They differentiate from myeloid precursors through a complex regulation process where the differentiation of preosteoclasts is followed by intercellular fusion to generate large multinucleated cells. Under physiological conditions, osteoclastogenesis is primarily directed by interactions between CSF-1R and macrophage colony-stimulating factor (M-CSF, CSF-1), receptor activator of nuclear factor NF-κB (RANK) and RANK ligand (RANKL), as well as adhesion receptors (e.g., integrins) and their ligands. Osteoclasts play a central role in physiological and pathological bone resorption and are also required for excessive bone loss during osteoporosis, inflammatory bone and joint diseases (such as rheumatoid arthritis) and cancer cell-induced osteolysis. Due to the major role of osteoclasts in these diseases the better understanding of their intracellular signaling pathways can lead to the identification of potential novel therapeutic targets. Non-receptor tyrosine kinases and lipid kinases play major roles in osteoclasts and small-molecule kinase inhibitors are emerging new therapeutics in diseases with pathological bone loss. During the last few years, we and others have shown that certain lipid (such as phosphoinositide 3-kinases PI3Kβ and PI3Kδ) and tyrosine (Src-family and Syk) kinases play a critical role in osteoclast differentiation and function in humans and mice. Some of these signaling pathways shows similarity to immunoreceptor-like receptor signaling and involves important other enzymes (e.g., PLCγ2) and adapter proteins (such as the ITAM-bearing adapters DAP12 and the Fc-receptor γ-chain). Here, we review recently identified osteoclast signaling pathways and their role in osteoclast differentiation and function as well as pathological bone loss associated with osteolytic tumors of the bone. A better understanding of osteoclast signaling may facilitate the design of novel and more efficient therapies for pathological bone resorption and osteolytic skeletal metastasis formation.
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Affiliation(s)
- Dávid S. Győri
- Department of Physiology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
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60
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Liu W, Le CC, Wang D, Ran D, Wang Y, Zhao H, Gu J, Zou H, Yuan Y, Bian J, Liu Z. Ca 2+/CaM/CaMK signaling is involved in cadmium-induced osteoclast differentiation. Toxicology 2020; 441:152520. [PMID: 32522522 DOI: 10.1016/j.tox.2020.152520] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 06/04/2020] [Accepted: 06/04/2020] [Indexed: 10/24/2022]
Abstract
Environmental cadmium (Cd) pollution can ultimately lead to chronic toxicity via food consumption. Previous studies have demonstrated that long-term low-dose Cd exposure decreases bone mineral density and bone mineralization. Cd may increase receptor activator of nuclear factor-κ B ligand (RANKL) expression by osteoclasts, and inhibit the expression of osteoprotegerin. However, the molecular mechanism underlying Cd toxicity toward osteoclasts is unclear. In this study, bone marrow monocytes were isolated from C57BL/6 mice and treated with macrophage colony-stimulating factor and RANKL to induce the formation of osteoclasts. The results show that low-dose Cd exposure induced osteoclast differentiation. Cd also increased the intracellular calcium concentration of osteoclasts by triggering release of calcium ions from the endoplasmic reticulum into the cytoplasm. Furthermore, the elevation of intracellular calcium levels was shown to activate the calmodulin (CaM)/calmodulin-dependent protein kinase (CaMK) pathway. NFATc1 is a downstream protein of CaM/CaMK signaling, as well as a key player in osteoclast differentiation. Overall, we conclude that Cd activates the CaM/CaMK/NFATc1 pathway and regulates osteoclast differentiation by increasing intracellular calcium concentration. Our data provide new insights into the mechanisms underlying osteoclast differentiation following Cd exposure. This study provides a theoretical basis for future investigations into the therapeutic application of CaMK inhibitors in osteoporosis induced by Cd exposure.
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Affiliation(s)
- Wei Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009 Jiangsu, China; Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009 Jiangsu, China; Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009 Jiangsu, China
| | - Chung Chi Le
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009 Jiangsu, China; Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009 Jiangsu, China; Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009 Jiangsu, China
| | - Dong Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009 Jiangsu, China; Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009 Jiangsu, China; Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009 Jiangsu, China
| | - Di Ran
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009 Jiangsu, China; Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009 Jiangsu, China; Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009 Jiangsu, China
| | - Yi Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009 Jiangsu, China; Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009 Jiangsu, China; Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009 Jiangsu, China
| | - Hongyan Zhao
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009 Jiangsu, China; Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009 Jiangsu, China; Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009 Jiangsu, China
| | - Jianhong Gu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009 Jiangsu, China; Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009 Jiangsu, China; Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009 Jiangsu, China
| | - Hui Zou
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009 Jiangsu, China; Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009 Jiangsu, China; Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009 Jiangsu, China
| | - Yan Yuan
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009 Jiangsu, China; Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009 Jiangsu, China; Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009 Jiangsu, China
| | - Jianchun Bian
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009 Jiangsu, China; Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009 Jiangsu, China; Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009 Jiangsu, China
| | - Zongping Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009 Jiangsu, China; Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009 Jiangsu, China; Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009 Jiangsu, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, 225009, China.
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Klein S, Mentrup B, Timmen M, Sherwood J, Lindemann O, Fobker M, Kronenberg D, Pap T, Raschke MJ, Stange R. Modulation of Transient Receptor Potential Channels 3 and 6 Regulates Osteoclast Function with Impact on Trabecular Bone Loss. Calcif Tissue Int 2020; 106:655-664. [PMID: 32140760 DOI: 10.1007/s00223-020-00673-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 02/08/2020] [Indexed: 01/09/2023]
Abstract
Enhanced osteoclast formation and function is a fundamental cause of alterations to bone structure and plays an important role in several diseases impairing bone quality. Recent work revealed that TRP calcium channels 3 and 6 might play a special role in this context. By analyzing the bone phenotype of TRPC6-deficient mice we detected a regulatory effect of TRPC3 on osteoclast function. These mice exhibit a significant decrease in bone volume per tissue volume, trabecular thickness and -number together with an increased number of osteoclasts found on the surface of trabecular bone. Primary bone marrow mononuclear cells from TRPC6-deficient mice showed enhanced osteoclastic differentiation and resorptive activity. This was confirmed in vitro by using TRPC6-deficient RAW 264.7 cells. TRPC6 deficiency led to an increase of TRPC3 in osteoclasts, suggesting that TRPC3 overcompensates for the loss of TRPC6. Raised intracellular calcium levels led to enhanced NFAT-luciferase reporter gene activity in the absence of TRPC6. In line with these findings inhibition of TRPC3 using the specific inhibitor Pyr3 significantly reduced intracellular calcium concentrations and normalized osteoclastic differentiation and resorptive activity of TRPC6-deficient cells. Interestingly, an up-regulation of TRPC3 could be detected in a cohort of patients with low bone mineral density by comparing micro array data sets of circulating human osteoclast precursor cells to those from patients with high bone mineral density, suggesting a noticeable contribution of TRP calcium channels on bone quality. These observations demonstrate a novel regulatory function of TRPC channels in the process of osteoclastic differentiation and bone loss.
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Affiliation(s)
- Sebastian Klein
- Institute of Musculoskeletal Medicine, University Münster, Münster, Germany
- Institute of Pathology, University Hospital of Cologne, Cologne, Germany
| | - Birgit Mentrup
- Institute of Musculoskeletal Medicine, University Münster, Münster, Germany
| | - Melanie Timmen
- Institute of Musculoskeletal Medicine, University Münster, Münster, Germany
| | - Joanna Sherwood
- Institute of Musculoskeletal Medicine, University Münster, Münster, Germany
| | - Otto Lindemann
- Institute of Physiology II, University Münster, Münster, Germany
| | - Manfred Fobker
- Center for Laboratory Medicine, University Hospital Münster, Münster, Germany
| | - Daniel Kronenberg
- Institute of Musculoskeletal Medicine, University Münster, Münster, Germany
| | - Thomas Pap
- Institute of Musculoskeletal Medicine, University Münster, Münster, Germany
| | - Michael J Raschke
- Department of Trauma, Hand and Reconstructive Surgery University Hospital Münster, Münster, Germany
| | - Richard Stange
- Institute of Musculoskeletal Medicine, University Münster, Münster, Germany.
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Huang Y, Li Q, Feng Z, Zheng L. STIM1 controls calcineurin/Akt/mTOR/NFATC2-mediated osteoclastogenesis induced by RANKL/M-CSF. Exp Ther Med 2020; 20:736-747. [PMID: 32742319 PMCID: PMC7388407 DOI: 10.3892/etm.2020.8774] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 06/20/2019] [Indexed: 12/12/2022] Open
Abstract
Store-operated Ca2+ entry (SOCE) is the stable calcium channel influx in most cells. It consists of the cytoplasmic ion channel ORAI and endoplasmic reticulum receptor stromal interaction molecule 1 (STIM1). Abolition of SOCE function due to ORAI1 and STIM1 gene defects may cause non-perspiration, ectoderm dysplasia and skeletal malformations with severe combined immunodeficiency (CID). Calcineurin/mammalian target of rapamycin (mTOR)/nuclear factor of activated T cells 2 (NFATC2) is an important signalling cascade for osteoclast development. Calcineurin is activated by Ca2+ via SOCE during osteoclastogenesis, which is induced by receptor activator of NF-κB ligand (RANKL) and macrophage colony-stimulating factor (M-CSF). However, the underlying mechanism has remained to be fully elucidated, which was therefore the aim of the present study. In the current study, flow cytometry was used to examine the effect of a number of STIM1 mutations on proliferation, differentiation, and expression of osteolysis-associated proteins in Bone marrow-derived mononuclear macrophages (BMDM). The calcineurin/AKT/mTOR/NFATC2 signaling cascade activation were also assessed. BMDMs were obtained from three patients with STIM1 mutations (p.E136X, p.R429C and p.R304W). These mutations, which exhibited abolished (p.E136X, p.R429C) or constitutively activated (p.R304W) SOCE, failed to respond to RANKL/M-CSF-mediated induction of normal osteoclastogenesis. In addition, activation of the calcineurin/Akt/mTOR/NFATC2 signalling cascade induced by RANKL/M-CSF was abnormal in the BMDMs with STIM1 mutants compared with that in BMDMs from healthy subjects. In addition, overexpression of wild-type STIM1 restored SOCE in p.R429C- and p.E136X-mutant BMDMs, but not in p.R304W-mutant BMDMs. Of note, calcineurin, cyclosporin A, mTOR inhibitor rapamycin and NFATC2-specific small interfering RNA restored the function of SOCE in p.R304W-mutant BMDMs. The present study suggests a role for SOCE in calcineurin/Akt/mTOR/NFATC2-mediated osteoclast proliferation, differentiation and function.
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Affiliation(s)
- Yanjiao Huang
- Department of Pathological Anatomy, Wannan Medical College, Wuhu, Anhui 241002, P.R. China
| | - Qiang Li
- Department of Anatomy, Wannan Medical College, Wuhu, Anhui 241002, P.R. China
| | - Zunyong Feng
- Department of Forensic Medicine, Wannan Medical College, Wuhu, Anhui 241002, P.R. China
| | - Lanrong Zheng
- Department of Pathological Anatomy, Wannan Medical College, Wuhu, Anhui 241002, P.R. China
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Lu DZ, Dong W, Feng XJ, Chen H, Liu JJ, Wang H, Zang LY, Qi MC. CaMKII(δ) regulates osteoclastogenesis through ERK, JNK, and p38 MAPKs and CREB signalling pathway. Mol Cell Endocrinol 2020; 508:110791. [PMID: 32173349 DOI: 10.1016/j.mce.2020.110791] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 01/02/2020] [Accepted: 03/10/2020] [Indexed: 12/21/2022]
Abstract
Calcium/calmodulin-dependent protein kinases (CaMKs) are a group of important molecules mediating calcium signal transmission and have been proved to participate in osteoclastogenesis regulation. CaMKII, a subtype of CaMKs is expressed during osteoclast differentiation, but its role in osteoclastogenesis regulation remains controversial. In the present study, we identified that both mRNA and protein levels of CaMKII (δ) were upregulated in a time-dependent manner during osteoclast differentiation. CaMKII (δ) gene silencing significantly inhibited osteoclast formation, bone resorption, and expression of osteoclast-related genes, including nuclear factor of activated T cells c1 (NFATc1), tartrate-resistant acid phosphatase (TRAP), and c-Src. Furthermore, CaMKII (δ) gene silencing downregulated phosphorylation of mitogen-activated protein kinases (MAPKs), including JNK, ERK, and p38, which were transiently activated by RANKL. Specific inhibitors of ERK, JNK, and p38 also markedly inhibited expression of osteoclast-related genes, osteoclast formation, and bone resorption like CaMKII (δ) gene silencing. Additionally, CaMKII (δ) gene silencing also suppressed RANKL-triggered CREB phosphorylation. Collectively, these data demonstrate the important role of CaMKII (δ) in osteoclastogenesis regulation through JNK, ERK, and p38 MAPKs and CREB pathway.
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Affiliation(s)
- Da-Zhuang Lu
- Department of Oral & Maxillofacial Surgery, College of Stomatology, North China University of Science and Technology, 21, Bohai Road, District of Caofeidian, Tangshan City, 063210, Hebei Province, PR China
| | - Wei Dong
- Department of Oral & Maxillofacial Surgery, College of Stomatology, North China University of Science and Technology, 21, Bohai Road, District of Caofeidian, Tangshan City, 063210, Hebei Province, PR China
| | - Xiao-Jie Feng
- Department of Oral & Maxillofacial Surgery, College of Stomatology, North China University of Science and Technology, 21, Bohai Road, District of Caofeidian, Tangshan City, 063210, Hebei Province, PR China
| | - Hui Chen
- Department of Oral & Maxillofacial Surgery, Affiliated Hospital of North China University of Science and Technology, Tangshan City, 063000, Hebei Province, PR China
| | - Juan-Juan Liu
- Department of Oral & Maxillofacial Surgery, College of Stomatology, North China University of Science and Technology, 21, Bohai Road, District of Caofeidian, Tangshan City, 063210, Hebei Province, PR China
| | - Hui Wang
- Department of Oral & Maxillofacial Surgery, College of Stomatology, North China University of Science and Technology, 21, Bohai Road, District of Caofeidian, Tangshan City, 063210, Hebei Province, PR China
| | - Lu-Yang Zang
- Department of Endocrinology (Section 1), Tangshan Gongren Hospital, Tangshan City, 063000, Hebei Province, PR China
| | - Meng-Chun Qi
- Department of Oral & Maxillofacial Surgery, College of Stomatology, North China University of Science and Technology, 21, Bohai Road, District of Caofeidian, Tangshan City, 063210, Hebei Province, PR China.
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Ohtsuka S, Ozeki Y, Fujiwara M, Miyagawa T, Kanayama N, Magari M, Hatano N, Suizu F, Ishikawa T, Tokumitsu H. Development and Characterization of Novel Molecular Probes for Ca 2+/Calmodulin-Dependent Protein Kinase Kinase, Derived from STO-609. Biochemistry 2020; 59:1701-1710. [PMID: 32298102 DOI: 10.1021/acs.biochem.0c00149] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Ca2+/calmodulin-dependent protein kinase kinase (CaMKK) activates particular multifunctional kinases, including CaMKI, CaMKIV, and 5'AMP-activated protein kinase (AMPK), resulting in the regulation of various Ca2+-dependent cellular processes, including neuronal, metabolic, and pathophysiological pathways. We developed and characterized a novel pan-CaMKK inhibitor, TIM-063 (2-hydroxy-3-nitro-7H-benzo[de]benzo[4,5]imidazo[2,1-a]isoquinolin-7-one) derived from STO-609 (7H-benzimidazo[2,1-a]benz[de]isoquinoline-7-one-3-carboxylic acid), and an inactive analogue (TIM-062) as molecular probes for the analysis of CaMKK-mediated cellular responses. Unlike STO-609, TIM-063 had an inhibitory activity against CaMKK isoforms (CaMKKα and CaMKKβ) with a similar potency (Ki = 0.35 μM for CaMKKα, and Ki = 0.2 μM for CaMKKβ) in vitro. Two TIM-063 analogues lacking a nitro group (TIM-062) or a hydroxy group (TIM-064) completely impaired CaMKK inhibitory activities, indicating that both substituents are necessary for the CaMKK inhibitory activity of TIM-063. Enzymatic analysis revealed that TIM-063 is an ATP-competitive inhibitor that directly targets the catalytic domain of CaMKK, similar to STO-609. TIM-063 suppressed the ionomycin-induced phosphorylation of exogenously expressed CaMKI, CaMKIV, and endogenous AMPKα in HeLa cells with an IC50 of ∼0.3 μM, and it suppressed CaMKK isoform-mediated CaMKIV phosphorylation in transfected COS-7 cells. Thus, TIM-063, but not the inactive analogue (TIM-062), displayed cell permeability and the ability to inhibit CaMKK activity in cells. Taken together, these results indicate that TIM-063 could be a useful tool for the precise analysis of CaMKK-mediated signaling pathways and may be a promising lead compound for the development of therapeutic agents for the treatment of CaMKK-related diseases.
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Affiliation(s)
- Satomi Ohtsuka
- Applied Cell Biology, Graduate School of Interdisciplinary Science & Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | | | | | | | - Naoki Kanayama
- Applied Cell Biology, Graduate School of Interdisciplinary Science & Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | - Masaki Magari
- Applied Cell Biology, Graduate School of Interdisciplinary Science & Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | - Naoya Hatano
- Applied Cell Biology, Graduate School of Interdisciplinary Science & Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | - Futoshi Suizu
- Division of Cancer Biology, Institute for Genetic Medicine, Hokkaido University, Sapporo 060-0815, Japan
| | | | - Hiroshi Tokumitsu
- Applied Cell Biology, Graduate School of Interdisciplinary Science & Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
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Hu X, Yin Z, Chen X, Jiang G, Yang D, Cao Z, Li S, Liu Z, Peng D, Dou P. Tussilagone Inhibits Osteoclastogenesis and Periprosthetic Osteolysis by Suppressing the NF-κB and P38 MAPK Signaling Pathways. Front Pharmacol 2020; 11:385. [PMID: 32317967 PMCID: PMC7146087 DOI: 10.3389/fphar.2020.00385] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 03/12/2020] [Indexed: 11/17/2022] Open
Abstract
Background Aseptic prosthetic loosening is one of the main factors causing poor prognosis of limb function after joint replacement and requires troublesome revisional surgery. It is featured by wear particle-induced periprosthetic osteolysis mediated by excessive osteoclasts activated in inflammatory cell context. Some natural compounds show antiosteoclast traits with high cost-efficiency and few side effects. Tussilagone (TUS), which is the main functional extract from Tussilago farfara generally used for relieving cough, asthma, and eliminating phlegm in traditional medicine has been proven to appease several RAW264.7-mediated inflammatory diseases via suppressing osteoclast-related signaling cascades. However, whether and how TUS can improve aseptic prosthetic loosening via modulating osteoclast-mediated bone resorption still needs to be answered. Methods We established a murine calvarial osteolysis model to detect the preventative effect of TUS on osteolysis in vivo. Micro-CT scanning and histomorphometric analysis were used to determine the variation of bone resorption and osteoclastogenesis. The anti–osteoclast-differentiation and anti–bone-resorption bioactivities of TUS in vitro were investigated using bone slice resorption pit evaluation, and interference caused by cytotoxicity of TUS was excluded according to the CCK-8 assay results. Quantitative polymerase chain reaction (qPCR) analysis was applied to prove the decreased expression of osteoclast-specific genes after TUS treatment. The inhibitory effect of TUS on NF-κB and p38 MAPK signaling pathways was testified by Western blot and NF-κB-linked luciferase reporter gene assay. Results TUS better protected bones against osteolysis in murine calvarial osteolysis model with reduced osteoclasts than those in the control group. In vitro studies also showed that TUS exerted antiosteoclastogenesis and anti–bone-resorption effects in both bone marrow macrophages (BMMs) and RAW264.7 cells, as evidenced by the decline of osteoclast-specific genes according to qPCR. Western blotting revealed that TUS treatment inhibited IκBα degradation and p38 phosphorylation. Conclusions Collectively, our studies proved for the first time that TUS inhibits osteoclastogenesis by suppressing the NF-κB and p38 MAPK signaling pathways, therefore serving as a potential natural compound to treat periprosthetic osteolysis-induced aseptic prosthetic loosening.
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Affiliation(s)
- Xuantao Hu
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Ziqing Yin
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Xia Chen
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Guangyao Jiang
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Daishui Yang
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Ziqin Cao
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Shuai Li
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Zicheng Liu
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Dan Peng
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Pengcheng Dou
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, China
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Zhang Z, Xiang L, Wang Y, Jiang Y, Cheng Y, Xiao GG, Ju D, Chen Y. Effect of Diosgenin on the Circulating MicroRNA Profile of Ovariectomized Rats. Front Pharmacol 2020; 11:207. [PMID: 32210807 PMCID: PMC7069125 DOI: 10.3389/fphar.2020.00207] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 02/14/2020] [Indexed: 12/16/2022] Open
Abstract
The present study aimed to assess the changes in circulating microRNA (miRNA) expression profiles associated with the potential osteoprotective effect of diosgenin (DIO) in ovariectomized (OVX) rats. Wistar rats (female) were subjected to a sham operation (SHAM group) or ovariectomy. OVX rats were treated with DIO (DIO group) or vehicle (OVX group) for 12 weeks. Following treatment, the serum estradiol, bone turnover biomarker levels, and the microarchitecture of tibias were assayed. Based on miRNA microarray and qRT-PCR analyses, differentially expressed (DE) circulating miRNAs were identified between the OVX and SHAM groups (comparison A) and between the DIO and OVX groups (comparison B). Furthermore, putative target genes of shared DE miRNAs with opposite expression trends in the two comparisons were predicted by ingenuity pathway analysis (IPA). Finally, the expression levels of the putative target genes in serum and tibia were validated by qRT-PCR. The micro-CT results demonstrated that DIO had a substantial anti-osteopenic effect on the tibias of OVX rats. In total, we found 5 DE circulating miRNAs (four upregulated and one downregulated) in comparison A and 21 DE circulating miRNAs (15 upregulated and 6 downregulated) in comparison B. However, only one DE circulating miRNA (rno-miR-20a-5p) had opposite expression trends between the two comparisons. Including rno-miR-20a-5p, 7 of the 10 selected DE circulating miRNAs between the two comparisons passed qRT-PCR validation. Specifically, based on qRT-PCR validation, DIO upregulated the expression of rno-miR-20a-5p and downregulated that of three target genes (Tnf, Creb1, and Tgfbr2) of the "osteoclast differentiation" pathway in the tibias of OVX rats. Our results suggested that DIO could change the circulating miRNA profile of OVX rats and inhibited the downregulation of miR-20a-5p in serum and tibia. DIO might exert an anti-osteoclastogenic effect on OVX rats by upregulating the expression of miR-20a-5p in circulation and bone tissue.
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Affiliation(s)
- Zhiguo Zhang
- Institute of Basic Theory, China Academy of Chinese Medical Sciences, Beijing, China
| | - Lihua Xiang
- Institute of Basic Theory, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yuhan Wang
- Institute of Basic Theory, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yanhua Jiang
- Institute of Basic Theory, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yin Cheng
- Institute of Basic Theory, China Academy of Chinese Medical Sciences, Beijing, China
| | - Gary Guishan Xiao
- School of Pharmaceutical Science, Dalian University of Technology, Dalian, China.,Functional Genomics and Proteomics Laboratory, Osteoporosis Research Center, Creighton University School of Medicine, Omaha, NE, United States
| | - Dahong Ju
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yanjing Chen
- Institute of Basic Theory, China Academy of Chinese Medical Sciences, Beijing, China
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TAKAYANAGI H. Osteoimmunology - Bidirectional dialogue and inevitable union of the fields of bone and immunity. PROCEEDINGS OF THE JAPAN ACADEMY. SERIES B, PHYSICAL AND BIOLOGICAL SCIENCES 2020; 96:159-169. [PMID: 32281551 PMCID: PMC7247972 DOI: 10.2183/pjab.96.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 02/25/2020] [Indexed: 05/28/2023]
Abstract
Bone is a critically important part of the skeletal system that is essential for body support and locomotion. The immune system protects against pathogens and is active in host defense. These two seemingly distinct systems in fact interact with each other, share molecules and create a collaborative regulatory system called the "osteoimmune system". The most representative osteoimmune molecule is receptor activator of NF-κB ligand (RANKL), which plays multiple roles in the osteoimmune system under both physiological and pathological conditions such as rheumatoid arthritis and cancer metastasis to bone. Based on accumulating evidence for such mutual dependence, it is concluded that the relationship between bone and the immune system did not develop by accident but as a necessary consequence of evolution. Here I describe the history of and recent advances in osteoimmunology, providing a perspective in the contexts of both science and medicine.
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Affiliation(s)
- Hiroshi TAKAYANAGI
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
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68
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Lan Y, Wang Y, Lu H. Opsin 3 is a key regulator of ultraviolet A-induced photoageing in human dermal fibroblast cells. Br J Dermatol 2019; 182:1228-1244. [PMID: 31380578 PMCID: PMC7318274 DOI: 10.1111/bjd.18410] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/31/2019] [Indexed: 12/22/2022]
Abstract
Background Chronic exposure to ultraviolet (UV) radiation (mainly UVA) induces a sustained increase of matrix metalloproteinases (MMPs), especially MMP1, MMP2, MMP3 and MMP9 in human skin fibroblasts. MMPs can lead to the degradation of fibrous connective tissue, which is the main cause of skin photoageing. The molecular mechanisms through which fibroblasts sense UVA and trigger the cell signalling pathways involved in the upregulation of MMPs have not been well elucidated. Objectives Here, we investigated the function and potential mechanisms of photoageing of opsin (OPN)3 in normal human dermal fibroblasts (NHDFs). Methods Real‐time polymerase chain reaction and Western blot analysis were used to analyse the expression levels of OPN3 in NHDFs and photoageing models. Subsequently, NHDFs transfected with OPN3 inhibitors and indicators related to photoageing before and after UVA irradiation included expression levels of MMP1, MMP2, MMP3 and MMP9, and signalling pathway protein molecules were examined. Results We provide evidence that OPN3 initiates UVA phototransduction in NHDFs. OPN3 triggers phosphorylation of activator protein 1 and ultimately upregulates MMP1, MMP2, MMP3 and MMP9 in NHDFs through activating Ca2+/calmodulin‐dependent protein kinase II, cyclic adenosine monophosphate response element‐binding protein, extracellular signal‐regulated kinase, c‐JUN N‐terminal kinase and p38. Here, we demonstrate for the first time that OPN3 is the key sensor responsible for upregulating MMP1, MMP2, MMP3 and MMP9 in NHDFs following UVA exposure via the calcium‐dependent G protein‐coupled signalling pathway. Conclusions Our studies provide insights into the understanding of the molecular mechanisms through which human skin cells respond to UVA radiation and may reveal molecular targets for skin photoageing prevention or clinical management. What's already known about this topic? Photoaged fibroblasts accumulate with long‐term ultraviolet (UV) exposure. Matrix metalloproteinases (MMPs) play an important role in the pathogenesis of photoageing. MMP1, MMP2, MMP3 and MMP9 are responsible for the destruction of fibroblast collagen in severely photodamaged skin. Opsins (OPNs) are light‐sensitive members of the superfamily of heptahelical G protein‐coupled receptors, a family of cell surface receptors that are activated by a variety of stimuli and mediate signalling across membranes.
What does this study add? OPN3 is highly expressed in fibroblasts and responds to UVA irradiation. OPN3 regulates the expression of MMP1, MMP2, MMP3 and MMP9 via the calcium‐dependent G protein‐coupled signalling pathway. OPN3 is a light‐sensitive sensor that plays an important role in photoageing of the skin.
Linked Comment: Julie Thornton. Br J Dermatol 2020; 182:1086–1087. Plain language summary available online
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Affiliation(s)
- Y Lan
- Department of Dermatology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550001, China
| | - Y Wang
- Department of Dermatology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550001, China
| | - H Lu
- Department of Dermatology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550001, China
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Zhang S, Xue R, Hu R. The neuroprotective effect and action mechanism of polyphenols in diabetes mellitus-related cognitive dysfunction. Eur J Nutr 2019; 59:1295-1311. [PMID: 31598747 DOI: 10.1007/s00394-019-02078-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 08/10/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND Diabetes mellitus (DM) is a complex and prevalent metabolic disorder worldwide. Strong evidence has emerged that DM is a risk factor for the accelerated rate of cognitive decline and the development of dementia. Though traditional pharmaceutical agents are efficient for the management of DM and DM-related cognitive decrement, long-term use of these drugs are along with undesired side effects. Therefore, tremendous studies have focused on the therapeutic benefits of natural compounds at present. Ample evidence exists to prove that polyphenols are capable to modulate diabetic neuropathy with minimal toxicity and adverse effects. PURPOSE To describe the benefits and mechanisms of polyphenols on DM-induced cognitive dysfunction. In this review, we introduce an updated overview of associations between DM and cognitive dysfunction. The risk factors as well as pathological and molecular mechanisms of DM-induced cognitive dysfunction are summarized. More importantly, many active polyphenols that possess preventive and therapeutic effects on DM-induced cognitive dysfunction and the potential signaling pathways involved in the action are highlighted. CONCLUSIONS The therapeutic effects of polyphenols on DM-related cognitive dysfunction pave a novel way for the management of diabetic encephalopathy.
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Affiliation(s)
- Shenshen Zhang
- College of Public Health, Zhengzhou University, Zhengzhou, China.
| | - Ran Xue
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Ruizhe Hu
- School of Physical Education (Main Campus), Zhengzhou University, Zhengzhou, China.
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70
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Wang C, Mbalaviele G. Role of APD-Ribosylation in Bone Health and Disease. Cells 2019; 8:cells8101201. [PMID: 31590342 PMCID: PMC6829334 DOI: 10.3390/cells8101201] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 09/25/2019] [Accepted: 09/27/2019] [Indexed: 12/13/2022] Open
Abstract
The transfer of adenosine diphosphate (ADP)-ribose unit(s) from nicotinamide adenine dinucleotide (NAD+) to acceptor proteins is known as ADP-ribosylation. This post-translational modification (PTM) unavoidably alters protein functions and signaling networks, thereby impacting cell behaviors and tissue outcomes. As a ubiquitous mechanism, ADP-ribosylation affects multiple tissues, including bones, as abnormal ADP-ribosylation compromises bone development and remodeling. In this review, we describe the effects of ADP-ribosylation in bone development and maintenance, and highlight the underlying mechanisms.
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Affiliation(s)
- Chun Wang
- Division of Bone and Mineral Diseases, Washington University School of Medicine, St. Louis, MO 63110, USA.
| | - Gabriel Mbalaviele
- Division of Bone and Mineral Diseases, Washington University School of Medicine, St. Louis, MO 63110, USA.
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71
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Bone loss caused by dopaminergic degeneration and levodopa treatment in Parkinson's disease model mice. Sci Rep 2019; 9:13768. [PMID: 31551490 PMCID: PMC6760231 DOI: 10.1038/s41598-019-50336-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 09/05/2019] [Indexed: 12/17/2022] Open
Abstract
Accumulating evidence have shown the association of Parkinson’s disease (PD) with osteoporosis. Bone loss in PD patients, considered to be multifactorial and a result of motor disfunction, is a hallmark symptom that causes immobility and decreased muscle strength, as well as malnutrition and medication. However, no known experimental evidence has been presented showing deleterious effects of anti-PD drugs on bone or involvement of dopaminergic degeneration in bone metabolism. Here, we show that osteoporosis associated with PD is caused by dopaminergic degeneration itself, with no deficit of motor activity, as well as treatment with levodopa, the current gold-standard medication for affected patients. Our findings show that neurotoxin-induced dopaminergic degeneration resulted in bone loss due to accelerated osteoclastogenesis and suppressed bone formation, which was associated with elevated prolactin. On the other hand, using an experimental model of postmenopausal osteoporosis, dopaminergic degeneration did not result in exacerbation of bone loss due to estrogen deficiency, but rather reduction of bone loss. Thus, this study provides evidence for the regulation of bone metabolism by the dopaminergic system through both gonadal steroid hormone-dependent and -independent functions, leading to possible early detection of osteoporosis development in individuals with PD.
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72
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The effect of P2X7R-mediated Ca 2+ signaling in OPG-induced osteoclasts adhesive structure damage. Exp Cell Res 2019; 383:111555. [PMID: 31415763 DOI: 10.1016/j.yexcr.2019.111555] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 08/09/2019] [Accepted: 08/10/2019] [Indexed: 11/21/2022]
Abstract
Osteoclast adhesion is important for bone resorption. Osteoprotegerin inhibits osteoclast differentiation and bone resorption via Ca2+ signaling. Purinergic receptor P2X7 (P2X7R) affects osteoclastogenesis by activating transcription factor nuclear factor of activated T cells 1 (NFATc1). However, the detailed mechanism of osteoprotegerin-mediated P2X7R modulation of osteoclast adhesion is unclear. This study aimed to determine the effect of P2X7R on osteoprotegerin-induced damage to osteoclast adhesion. Osteoprotegerin reduced the expression of P2X7R, and protein tyrosine kinase 2 (PYK2) and SRC phosphorylation, and reduced calcium concentration, significantly decreasing Ca2+-NFATc1 signaling. 1,2-Bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid tetrakis (acetoxymethyl ester) (BAPTA-AM)/N-(6-Aminohexyl)-5-chloro-1-naphthalenesulfonamide hydrochloride (W-7) partly or absolutely recovered osteoprotegerin-induced osteoclasts adhesion structure damage, including increased the PYK2 and SRC phosphorylation, changed the distribution of PYK2/SRC and integrinαvβ3, and inhibited retraction of lamellipodia and filopodia and recovered osteoclast bone resorption activity. In addition, BAPTA-AM/W-7 also increased osteoprotegerin-induced activation of Ca2+-NFATc1 signaling, and restored normal P2X7R levels. P2X7R knockdown significantly inhibited osteoclast differentiation, and the formation of lamellipodia and filopodia, reduced the PYK2 and SRC phosphorylation, and inhibited Ca2+-related protein activation. However, P2X7R knockdown aggravated osteoprotegerin-induced osteoclast adhesion damage via Ca2+ signaling. In conclusion, the P2X7R-Ca2+ NFATc1 signaling pathway has a key functional role in osteoprotegerin-induced osteoclast adhesion structure damage.
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73
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Robinson LJ, Blair HC, Barnett JB, Soboloff J. The roles of Orai and Stim in bone health and disease. Cell Calcium 2019; 81:51-58. [PMID: 31201955 PMCID: PMC7181067 DOI: 10.1016/j.ceca.2019.06.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 06/04/2019] [Accepted: 06/04/2019] [Indexed: 01/17/2023]
Abstract
Orai and Stim proteins are the mediators of calcium release-activated calcium signaling and are important in the regulation of bone homeostasis and disease. This includes separate regulatory systems controlling mesenchymal stem cell differentiation to form osteoblasts, which make bone, and differentiation and regulation of osteoclasts, which resorb bone. These systems will be described separately, and their integration and relation to other systems, including Orai and Stim in teeth, will be briefly discussed at the end of this review.
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Affiliation(s)
- Lisa J Robinson
- Department of Pathology, Anatomy, and Laboratory Medicine, West Virginia University School of Medicine, Morgantown WV 26505, United States; Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown WV 26505, United States.
| | - Harry C Blair
- Veteran's Affairs Medical Center, Pittsburgh PA 15206, United States; Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15261, United States
| | - John B Barnett
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown WV 26505, United States
| | - Jonathan Soboloff
- Fels Institute for Cancer Research and Molecular Biology and the Department of Medical Genetics and Molecular Biochemistry, Temple University School of Medicine, Philadelphia, PA 19140, United States.
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74
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Niu H, Ma Y, Wu G, Duan B, Wang Y, Yuan Y, Liu C. Multicellularity-interweaved bone regeneration of BMP-2-loaded scaffold with orchestrated kinetics of resorption and osteogenesis. Biomaterials 2019; 216:119216. [PMID: 31138454 DOI: 10.1016/j.biomaterials.2019.05.027] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 05/14/2019] [Accepted: 05/16/2019] [Indexed: 12/19/2022]
Abstract
Synchronization of material resorption and new bone formation is vital to achieve harmonious bone regeneration in the treatment of large bone defects. To exposit the resorption/osteogenesis properties in the guided bone repairing, rhBMP-2-loaded trimodal macro/micro/nano-porous bioactive glass scaffolds (TMS-rhBMP-2) were set as substrate model. We penetratingly investigated the particular function of hierarchical structure and incorporated rhBMP-2 in the resorption/osteogenesis, and dissected the cellular interplay throughout the regenerative procedure. The results suggested that rhBMP-2 significantly facilitated osteoclastogenesis-mediated scaffold degradation and strikingly up-regulated mesenchymal stem cells (MSCs)-involved osteogenesis in vitro. Further gene microarray and related proteins expression indicated that in the presence of rhBMP-2, MSCs rather than differentiated MSCs could exert synergistic effects on osteoclastogenesis, osteoclasts maturation and resorptive function; meanwhile, rhBMP-2-induced MSCs osteogenesis was also strengthened by the osteoclasts. In vivo micro-CT, X-ray, kinetic and histological analyses qualitatively and quantitively demonstrated the optimized coupling of bioresorption/osteogenesis and the most rapid regeneration in TMS-rhBMP-2. Consequently, with rhBMP-2 acted as ignitor and MSCs/osteoclasts interaction as booster, a harmonious bone regeneration was obtained. Besides, long-term magnetic resonance imaging (MRI) in virtue of Gd3+ suggested that the degradation products mainly distributed in liver and spleen, verifying the accumulation/discharge profiles and safety application of TMS-rhBMP-2 system in vivo. This study will not merely provide guidance for the design of clinical bone repairing materials, but shed substantial light on the multicell-mediated tissue regeneration.
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Affiliation(s)
- Haoyi Niu
- Engineering Research Center for Biomaterials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, PR China; Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Yifan Ma
- Engineering Research Center for Biomaterials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, PR China; Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Guangyu Wu
- Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200237, PR China
| | - Bing Duan
- Engineering Research Center for Biomaterials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, PR China; Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Ying Wang
- Engineering Research Center for Biomaterials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, PR China; Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Yuan Yuan
- Engineering Research Center for Biomaterials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, PR China; Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, PR China.
| | - Changsheng Liu
- Engineering Research Center for Biomaterials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, PR China; Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, PR China; The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, PR China.
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75
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Yanagihara Y, Inoue K, Saeki N, Sawada Y, Yoshida S, Lee J, Iimura T, Imai Y. Zscan10 suppresses osteoclast differentiation by regulating expression of Haptoglobin. Bone 2019; 122:93-100. [PMID: 30771488 DOI: 10.1016/j.bone.2019.02.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 02/08/2019] [Accepted: 02/11/2019] [Indexed: 12/20/2022]
Abstract
Zinc finger and SCAN domain containing 10 (Zscan10) was identified as a novel transcription factor that is involved in osteoclast differentiation in our previous report. However, the biological functions of Zscan10 are not fully understood except its roles in the maintenance of genome stability and pluripotency of embryonic stem cells. Therefore, the purpose of this study was to clarify the function of Zscan10 in somatic cells, especially during osteoclast differentiation. First, Zscan10 KO RAW264 (KO) cells were established by genome editing using CRISPR/Cas9 and single cell sorting. Then, control (Ctrl) and KO cells were differentiated into osteoclasts by RANKL stimulation. We observed that TRAP activity and the expression levels of differentiation marker genes, such as Nfatc1, were significantly increased and the expression of inhibitory factors, such as Irf8, was decreased in KO cells compared to Ctrl cells. These results suggest that Zscan10 might regulate transcription of the genes that negatively control osteoclastogenesis. To understand gene expression profiles controlled by Zscan10, RNA-seq was performed and stringent analyses identified the haptoglobin gene (Hp) as a possible target of Zscan10. In addition, ChIP against Zscan10 revealed that Zscan10 could interact with its binding motif located near the Hp gene locus as well as the transcription start site of Hp, suggesting that Zscan10 can directly regulate transcription of Hp. Finally, to examine the effects of Hp on osteoclastogenesis, KO cells were treated with recombinant Hp (rHp). rHp treatment suppressed TRAP activity of KO cells without affecting cell viability. Furthermore, it has been reported that Hp KO mice exhibit decreased bone mass and increased osteoclast number. Importantly, hemolytic disease patients exhibited decreased serum level of Hp as well as low bone mineral density. Taken together, this study suggests that Zscan10 negatively regulates osteoclast differentiation through transcription of Hp.
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Affiliation(s)
- Yuta Yanagihara
- Department of Pathophysiology, Graduate School of Medicine, Ehime University, Toon, Ehime, Japan; Division of Laboratory Animal Research, Advanced Research Support Center, Ehime University, Toon, Ehime, Japan
| | - Kazuki Inoue
- Division of Laboratory Animal Research, Advanced Research Support Center, Ehime University, Toon, Ehime, Japan; Division of Integrative Pathophysiology, Proteo-Science Center, Ehime University, Toon, Ehime, Japan
| | - Noritaka Saeki
- Division of Laboratory Animal Research, Advanced Research Support Center, Ehime University, Toon, Ehime, Japan; Division of Integrative Pathophysiology, Proteo-Science Center, Ehime University, Toon, Ehime, Japan
| | - Yuichiro Sawada
- Division of Integrative Pathophysiology, Proteo-Science Center, Ehime University, Toon, Ehime, Japan; Department of Urology, Graduate School of Medicine, Ehime University, Toon, Ehime, Japan
| | - Shuhei Yoshida
- Division of Integrative Pathophysiology, Proteo-Science Center, Ehime University, Toon, Ehime, Japan
| | - Jiwon Lee
- Division of Bio-Imaging, Proteo-Science Center, Ehime University, Toon, Ehime, Japan
| | - Tadahiro Iimura
- Division of Bio-Imaging, Proteo-Science Center, Ehime University, Toon, Ehime, Japan; Division of Analytical Bio-Medicine, Advanced Research Support Center, Ehime University, Toon, Ehime, Japan
| | - Yuuki Imai
- Department of Pathophysiology, Graduate School of Medicine, Ehime University, Toon, Ehime, Japan; Division of Laboratory Animal Research, Advanced Research Support Center, Ehime University, Toon, Ehime, Japan; Division of Integrative Pathophysiology, Proteo-Science Center, Ehime University, Toon, Ehime, Japan.
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76
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Zhao X, Ning L, Xie Z, Jie Z, Li X, Wan X, Sun X, Huang B, Tang P, Shen S, Qin A, Ma Y, Song L, Fan S, Wan S. The Novel p38 Inhibitor, Pamapimod, Inhibits Osteoclastogenesis and Counteracts Estrogen-Dependent Bone Loss in Mice. J Bone Miner Res 2019; 34:911-922. [PMID: 30615802 DOI: 10.1002/jbmr.3655] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Revised: 11/21/2018] [Accepted: 12/04/2018] [Indexed: 12/30/2022]
Abstract
Pamapimod (PAM) is a novel selective p38 mitogen-activated protein (MAP) kinase inhibitor proved to be effective in rheumatoid arthritis in phase 2 clinical trial. However, its effect on osteoclast-associated osteoporosis and the underlying mechanisms remain unclear. In this study, we showed that PAM suppressed receptor activator of nuclear factor-κB ligand (RANKL)-induced osteoclast formation via inhibition of p38 phosphorylation and subsequent c-Fos and nuclear factor of activated T cells c1 (NFATc1) expression. In addition, the downregulated NFATc1 leads to reduced expression of its targeting gene disintegrin and metalloproteinase domain-containing protein 12 (ADAM12), which was further proven to be critical for osteoclastic bone resorption. Therefore, we treated ovariectomized (OVX) mice with PAM and revealed a protective effect of PAM on osteoporosis in vivo. In conclusion, our results demonstrated PAM can prevent OVX-induced bone loss through suppression of p38/NFATc1-induced osteoclast formation and NFATc1/ADAM12-associated bone resorption. © 2018 American Society for Bone and Mineral Research.
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Affiliation(s)
- Xiangde Zhao
- Department of Orthopaedics, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Lei Ning
- Department of Orthopaedics, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Ziang Xie
- Department of Orthopaedics, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Zhiwei Jie
- Department of Orthopaedics, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Xiang Li
- Department of Orthopaedics, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Xinyu Wan
- First Clinical Medical College, Wenzhou Medical University, Wenzhou, China
| | - Xuewu Sun
- Department of Orthopaedics, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Bao Huang
- Department of Orthopaedics, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Pan Tang
- Department of Orthopedics, Huzhou Central Hospital, Zhejiang University Huzhou Hospital, Huzhou, China
| | - Shuying Shen
- Department of Orthopaedics, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - An Qin
- Department of Orthopaedics, Shanghai Key Laboratory of Orthopaedic Implant, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yan Ma
- Department of Orthopaedics, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Lu Song
- Department of Oral Medicine, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shunwu Fan
- Department of Orthopaedics, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Shuanglin Wan
- Department of Orthopaedics, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
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77
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Zhang Z, Wen H, Yang X, Zhang K, He B, Zhang X, Kong L. Stimuli and Relevant Signaling Cascades for NFATc1 in Bone Cell Homeostasis: Friend or Foe? Curr Stem Cell Res Ther 2019; 14:239-243. [PMID: 30516111 DOI: 10.2174/1574888x14666181205122729] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 10/13/2018] [Accepted: 10/30/2018] [Indexed: 12/26/2022]
Abstract
Bone homeostasis is strictly regulated by balanced activity of bone-forming osteoblasts and bone-resorbing osteoclasts.Disruption of the balance of activity between osteoblasts and osteoclasts leads to various metabolic bone diseases. Osteoclasts are cells of hematopoietic origin that they are large, multinucleated cells formed by the fusion of precursor cells of monocyte/macrophage lineage, they are unique cells that degrade the bone matrix, activation of transcription factors nuclear factoractivated T cells c1 (NFATc1) is required for sufficient osteoclast differentiation and it plays the role of a master transcription regulator of osteoclast differentiation, meanwhile, NFATc1 could be employed to elicit anabolic effects on bone. In this review, we have summarized the various mechanisms that control NFATc1 regulation during osteoclast and osteoblast differentiation as well as a new strategy for promoting bone regeneration in osteopenic disease.
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Affiliation(s)
- Zhen Zhang
- Department of Spine Surgery, Honghui Hospital Affiliated to Xi'an Jiaotong University, Xi'an, China
| | - Hao Wen
- Department of Spine Surgery, Honghui Hospital Affiliated to Xi'an Jiaotong University, Xi'an, China
| | - Xiaobin Yang
- Department of Spine Surgery, Honghui Hospital Affiliated to Xi'an Jiaotong University, Xi'an, China
| | - Ke Zhang
- Department of Spine Surgery, Honghui Hospital Affiliated to Xi'an Jiaotong University, Xi'an, China
| | - Baorong He
- Department of Spine Surgery, Honghui Hospital Affiliated to Xi'an Jiaotong University, Xi'an, China
| | - Xinliang Zhang
- Department of Spine Surgery, Honghui Hospital Affiliated to Xi'an Jiaotong University, Xi'an, China
| | - Lingbo Kong
- Department of Spine Surgery, Honghui Hospital Affiliated to Xi'an Jiaotong University, Xi'an, China
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78
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Koga Y, Tsurumaki H, Aoki-Saito H, Sato M, Yatomi M, Takehara K, Hisada T. Roles of Cyclic AMP Response Element Binding Activation in the ERK1/2 and p38 MAPK Signalling Pathway in Central Nervous System, Cardiovascular System, Osteoclast Differentiation and Mucin and Cytokine Production. Int J Mol Sci 2019; 20:ijms20061346. [PMID: 30884895 PMCID: PMC6470985 DOI: 10.3390/ijms20061346] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 03/08/2019] [Accepted: 03/13/2019] [Indexed: 11/26/2022] Open
Abstract
There are many downstream targets of mitogen-activated protein kinase (MAPK) signalling that are involved in neuronal development, cellular differentiation, cell migration, cancer, cardiovascular dysfunction and inflammation via their functions in promoting apoptosis and cell motility and regulating various cytokines. It has been reported that cyclic AMP response element-binding protein (CREB) is phosphorylated and activated by cyclic AMP signalling and calcium/calmodulin kinase. Recent evidence also points to CREB phosphorylation by the MAPK signalling pathway. However, the specific roles of CREB phosphorylation in MAPK signalling have not yet been reviewed in detail. Here, we describe the recent advances in the study of this MAPK-CREB signalling axis in human diseases. Overall, the crosstalk between extracellular signal-related kinase (ERK) 1/2 and p38 MAPK signalling has been shown to regulate various physiological functions, including central nervous system, cardiac fibrosis, alcoholic cardiac fibrosis, osteoclast differentiation, mucin production in the airway, vascular smooth muscle cell migration, steroidogenesis and asthmatic inflammation. In this review, we focus on ERK1/2 and/or p38 MAPK-dependent CREB activation associated with various diseases to provide insights for basic and clinical researchers.
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Affiliation(s)
- Yasuhiko Koga
- Department of Allergy and Respiratory Medicine, Gunma University Graduate School of Medicine, 3-39-15 sho-wa machi Maebashi, Gunma 371-8511, Japan.
| | - Hiroaki Tsurumaki
- Department of Allergy and Respiratory Medicine, Gunma University Graduate School of Medicine, 3-39-15 sho-wa machi Maebashi, Gunma 371-8511, Japan.
| | - Haruka Aoki-Saito
- Department of Allergy and Respiratory Medicine, Gunma University Graduate School of Medicine, 3-39-15 sho-wa machi Maebashi, Gunma 371-8511, Japan.
| | - Makiko Sato
- Department of Allergy and Respiratory Medicine, Gunma University Graduate School of Medicine, 3-39-15 sho-wa machi Maebashi, Gunma 371-8511, Japan.
| | - Masakiyo Yatomi
- Department of Allergy and Respiratory Medicine, Gunma University Graduate School of Medicine, 3-39-15 sho-wa machi Maebashi, Gunma 371-8511, Japan.
| | - Kazutaka Takehara
- Department of Allergy and Respiratory Medicine, Gunma University Graduate School of Medicine, 3-39-15 sho-wa machi Maebashi, Gunma 371-8511, Japan.
| | - Takeshi Hisada
- Gunma University Graduate School of Health Sciences, 3-39-22 sho-wa machi Maebashi, Gunma 371-8514, Japan.
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79
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LncRNA ZBTB40-IT1 modulated by osteoporosis GWAS risk SNPs suppresses osteogenesis. Hum Genet 2019; 138:151-166. [PMID: 30661131 DOI: 10.1007/s00439-019-01969-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 01/02/2019] [Indexed: 02/06/2023]
Abstract
Previous genome-wide linkage and association studies have identified an osteoporosis-associated locus at 1p36 that harbors SNPs rs34920465 and rs6426749. The 1p36 locus also comprises the WNT4 gene with known role in bone metabolism and functionally unknown ZBTB40/lncRNA ZBTB40-IT1 genes. How these might interact to contribute to osteoporosis susceptibility is not known. In this study, we show that lncRNA ZBTB40-IT1 is able to suppress osteogenesis and promote osteoclastogenesis by regulating the expression of WNT4, RUNX2, OSX, ALP, COL1A1, OPG and RANKL in U-2OS and hFOB1.19 cell lines, whereas ZBTB40 plays an opposite role in bone metabolism. Treatment with parathyroid hormone significantly downregulates the expression of ZBTB40-IT1 in U-2OS cell lines. ZBTB40 can suppress ZBTB40-IT1 expression but has no response to parathyroid hormone treatment. Dual-luciferase assay and biotin pull-down assay demonstrate that osteoporosis GWAS lead SNPs rs34920465-G and rs6426749-C alleles can respectively bind transcription factors JUN::FOS and CREB1, and upregulate ZBTB40 and ZBTB40-IT1 expression. Our study discovers the critical role of ZBTB40 and lncRNA ZBTB40-IT1 in bone metabolism, and provides a mechanistic basis for osteoporosis GWAS lead SNPs rs34920465 and rs6426749.
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80
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Tao SC, Guo SC. Extracellular vesicles in bone: "dogrobbers" in the "eternal battle field". Cell Commun Signal 2019; 17:6. [PMID: 30658653 PMCID: PMC6339294 DOI: 10.1186/s12964-019-0319-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 01/06/2019] [Indexed: 02/07/2023] Open
Abstract
Throughout human life, bone is constantly in a delicate dynamic equilibrium of synthesis and resorption, hosting finely-tuned bone mineral metabolic processes for bone homeostasis by collaboration or symphony among several cell types including osteoclasts (OCs), osteoblasts (OBs), osteocytes (OYs), vascular endothelial cells (ECs) and their precursors. Beyond these connections, a substantial level of communication seems to occur between bone and other tissues, and together, they form an organic unit linked to human health and disease. However, the current hypothesis, which includes growth factors, hormones and specific protein secretion, incompletely explains the close connections among bone cells or between bone and other tissues. Extracellular vesicles (EVs) are widely-distributed membrane structures consisting of lipid bilayers, membrane proteins and intravesicular cargo (including proteins and nucleic acids), ranging from 30 nm to 1000 nm in diameter, and their characters have been highly conserved throughout evolution. EVs have targeting abilities and the potential to transmit multidimensional, abundant and complicated information, as powerful and substantial "dogrobbers" mediating intercellular communications. As research has progressed, EVs have gradually become thought of as "dogrobbers" in bone tissue-the "eternal battle field" -in a delicate dynamic balance of destruction and reconstruction. In the current review, we give a brief description of the major constituent cells in bone tissues and explore the progress of current research on bone-derived EVs. In addition, this review also discusses in depth not only potential directions for future research to breakthrough in this area but also problems existing in current research that need to be solved for a better understanding of bone tissues.
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Affiliation(s)
- Shi-Cong Tao
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China.
| | - Shang-Chun Guo
- Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China.
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81
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Kim Y, Hayashi M, Ono T, Yoda T, Takayanagi H, Nakashima T. Suppression of hematopoietic cell kinase ameliorates the bone destruction associated with inflammation. Mod Rheumatol 2019; 30:85-92. [PMID: 30486712 DOI: 10.1080/14397595.2018.1553266] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Objectives: To investigate the role of non-receptor tyrosine kinases (NRTKs) in inflammation-induced osteoclastogenesis.Methods: Microarray analyses of global mRNA expression during receptor activator of NF-κB ligand (RANKL) and RANKL plus tumor necrosis factor (TNF)-α-induced osteoclast differentiation were performed. The inhibitory effect on TNF-α-induced osteoclast differentiation of A-419259, a potent inhibitor of hematopoietic cell kinase (Hck), was examined. The in vivo therapeutic effect of A-419259 treatment on lipopolysaccharide (LPS)-induced inflammatory bone destruction was evaluated.Results: We confirmed that Hck expression was selectively increased among the NRTKs during the osteoclast differentiation induced by RANKL and TNF-α, but not by RANKL alone. RANKL and TNF-α-induced osteoclast differentiation and they were dose-dependently inhibited by A-419259 treatment through inhibition of the expression of key regulators of osteoclastogenesis, including Prdm1 and Nfatc1. Notably, LPS-induced inflammatory bone loss in murine calvarial bones was ameliorated by the administration of A-419259.Conclusions: Our results demonstrate that the administration of A-419259 is effective for the inhibition of osteoclast differentiation induced by TNF-α in the presence of RANKL. Therefore, an inhibitor of Hck may be useful as a potent anti-osteoclastogenic agent for the treatment of inflammatory bone destruction.
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Affiliation(s)
- Yusoon Kim
- Department of Maxillofacial Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.,Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Mikihito Hayashi
- Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.,Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan
| | - Takehito Ono
- Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.,Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan
| | - Tetsuya Yoda
- Department of Maxillofacial Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiroshi Takayanagi
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Tomoki Nakashima
- Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.,Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan.,Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), Tokyo, Japan
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Abstract
Bone is a crucial element of the skeletal-locomotor system, but also functions as an immunological organ that harbors hematopoietic stem cells (HSCs) and immune progenitor cells. Additionally, the skeletal and immune systems share a number of regulatory molecules, including cytokines and signaling molecules. Osteoimmunology was created as an interdisciplinary field to explore the shared molecules and interactions between the skeletal and immune systems. In particular, the importance of an inseparable link between the two systems has been highlighted by studies on the pathogenesis of rheumatoid arthritis (RA), in which pathogenic helper T cells induce the progressive destruction of multiple joints through aberrant expression of receptor activator of nuclear factor (NF)-κB ligand (RANKL). The conceptual bridge of osteoimmunology provides not only a novel framework for understanding these biological systems but also a molecular basis for the development of therapeutic approaches for diseases of bone and/or the immune system.
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Affiliation(s)
- Kazuo Okamoto
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hiroshi Takayanagi
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
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83
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Jie Z, Xie Z, Xu W, Zhao X, Jin G, Sun X, Huang B, Tang P, Wang G, Shen S, Qin A, Fan S. SREBP-2 aggravates breast cancer associated osteolysis by promoting osteoclastogenesis and breast cancer metastasis. Biochim Biophys Acta Mol Basis Dis 2019; 1865:115-125. [PMID: 30394316 DOI: 10.1016/j.bbadis.2018.10.026] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 10/22/2018] [Accepted: 10/23/2018] [Indexed: 12/19/2022]
Abstract
Bone is one of the most common sites of breast cancer metastasis and a major cause of high mortality in these patients. Thus, further understanding the molecular mechanisms regulating breast cancer-induced osteolysis is critical for the development of more effective treatments. In this study, we demonstrated that important roles sterol regulatory element-binding protein 2 (SREBP-2) play in osteoclast formation a function, and in breast cancer metastasis. SREBP-2 expression was found to be induced during the early stages of osteoclast formation under the control of the RANKL/cAMP-response element binding protein (CREB) signaling cascade. SREBP-2 is subsequently translocated into the nucleus where it participates with other transcriptional factors to induce the expression of NFATc1 required for mature osteoclast formation. Additionally, SREBP-2 was also found to be highly expressed in breast cancer tissues and correlated with a poor prognosis. SREBP-2 was similarly under the transcriptional control of CREB and its induction regulates the expression of matrix metalloproteinases (MMPs), key degradative enzymes involved in bone metastases by breast cancer cells. Accordingly, targeting of SREBP-2 with Fatostatin which specifically inhibits SCAP (SREBP cleavage-activating protein) and prevents SREBP activation, attenuated breast cancer-induced osteolysis in vivo. Collectively, our results suggest that SREBP-2 plays a critical role in regulating osteoclastogenesis and contributes to breast cancer-induced osteolysis. Thus, SREBP-2 inhibition is a potential therapeutic approach for breast cancer patients with osteolytic bone lesions.
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Affiliation(s)
- Zhiwei Jie
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China; Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, China
| | - Ziang Xie
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China; Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, China
| | - Wenbin Xu
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China; Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, China
| | - Xiangde Zhao
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China; Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, China
| | - Gu Jin
- Department of Bone and Soft Tissue Surgery, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - Xuewu Sun
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China; Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, China
| | - Bao Huang
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China; Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, China
| | - Pan Tang
- Department of Orthopedic, Zhejiang University Huzhou Hospital, Huzhou 313003, China
| | - Gangliang Wang
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China; Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, China
| | - Shuying Shen
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China; Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, China
| | - An Qin
- Department of Orthopaedics, Shanghai Key Laboratory of Orthopaedic Implant, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, China.
| | - Shunwu Fan
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China.
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84
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Jiang M, Yan Y, Yang K, Liu Z, Qi J, Zhou H, Qian N, Zhou Q, Wang T, Xu X, Xiao X, Deng L. Small molecule nAS-E targeting cAMP response element binding protein (CREB) and CREB-binding protein interaction inhibits breast cancer bone metastasis. J Cell Mol Med 2018; 23:1224-1234. [PMID: 30461194 PMCID: PMC6349349 DOI: 10.1111/jcmm.14024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 09/17/2018] [Accepted: 10/20/2018] [Indexed: 11/30/2022] Open
Abstract
Bone is the most common metastatic site for breast cancer. The excessive osteoclast activity in the metastatic bone lesions often produces osteolysis. The cyclic-AMP (cAMP)-response element binding protein (CREB) serves a variety of biological functions including the transformation and immortalization of breast cancer cells. In addition, evidence has shown that CREB plays a key role in osteoclastgenesis and bone resorption. Small organic molecules with good pharmacokinetic properties and specificity, targeting CREB-CBP (CREB-binding protein) interaction to inhibit CREB-mediated gene transcription have attracted more considerations as cancer therapeutics. We recently identified naphthol AS-E (nAS-E) as a cell-permeable inhibitor of CREB-mediated gene transcription through inhibiting CREB-CBP interaction. In this study, we tested the effect of nAS-E on breast cancer cell proliferation, survival, migration as well as osteoclast formation and bone resorption in vitro for the first time. Our results demonstrated that nAS-E inhibited breast cancer cell proliferation, migration, survival and suppressed osteoclast differentiation as well as bone resorption through inhibiting CREB-CBP interaction. In addition, the in vivo effect of nAS-E in protecting against breast cancer-induced osteolysis was evaluated. Our results indicated that nAS-E could reverse bone loss induced by MDA-MB-231 tumour. These results suggest that small molecules targeting CREB-CBP interaction to inhibit CREB-mediated gene transcription might be a potential approach for the treatment of breast cancer bone metastasis.
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Affiliation(s)
- Min Jiang
- Shanghai Key Laboratory for Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Shanghai Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yufei Yan
- Shanghai Key Laboratory for Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Shanghai Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Kai Yang
- Shanghai Key Laboratory for Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Shanghai Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Zhuochao Liu
- Shanghai Key Laboratory for Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Shanghai Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Jin Qi
- Shanghai Key Laboratory for Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Shanghai Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Hanbing Zhou
- Shanghai Key Laboratory for Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Shanghai Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Niandong Qian
- Shanghai Key Laboratory for Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Shanghai Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Qi Zhou
- Shanghai Key Laboratory for Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Shanghai Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Tianqi Wang
- Shanghai Key Laboratory for Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Shanghai Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xing Xu
- Shanghai Key Laboratory for Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Shanghai Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xiangshu Xiao
- Program in Chemical Biology, Department of Physiology and Pharmacology, Oregon Health & Science University, Portland, Oregon
| | - Lianfu Deng
- Shanghai Key Laboratory for Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Shanghai Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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85
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Kim EJ, Lee H, Kim MH, Yang WM. Inhibition of RANKL-stimulated osteoclast differentiation by Schisandra chinensis through down-regulation of NFATc1 and c-fos expression. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 18:270. [PMID: 30285722 PMCID: PMC6167898 DOI: 10.1186/s12906-018-2331-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 09/20/2018] [Indexed: 01/28/2023]
Abstract
Background Schisandra chinenesis (SC) has been reported to have ameliorative effect on osteoporosis. However, the mechanisms underlying the anti-osteoporosis activity of SC have not been clearly elucidated. In the present study, we determined the effects of SC on The receptor activator of NF-kB ligand (RANKL)-induced osteoclastogenesis and its potential mechanism. Methods Raw 264.7 cells were treated with 0.6, 6 and 60 μg/mL SC in the presence of 100 ng/mL RANKL for 7 days. RANKL-induced osteoclast formation was analyzed by tartrate resistant acid phosphatase (TRAP) staining. The osteoclast differentiation-related factors were confirmed along with TNF-α. Results SC inhibits the RANKL-induced osteoclast differentiation in dose-dependent manner within non-toxic concentrations. The supernatant concentrations of TNF-α were significantly decreased by SC treatment. In addition, osteoclastogenesis-related factors, TRAP6 and NF-κB, were markedly decreased by SC in RANKL-induced osteoclasts. Mechanistically, SC reduced the RANKL-triggered NFATc1 and c-fos expressions. Conclusions Taken together, our data suggest that SC can modulate bone metabolism by suppressing RANKL-induced osteoclast differentiation. Electronic supplementary material The online version of this article (10.1186/s12906-018-2331-5) contains supplementary material, which is available to authorized users.
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86
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T'Jonck W, Guilliams M, Bonnardel J. Niche signals and transcription factors involved in tissue-resident macrophage development. Cell Immunol 2018; 330:43-53. [PMID: 29463401 PMCID: PMC6108424 DOI: 10.1016/j.cellimm.2018.02.005] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 02/07/2018] [Accepted: 02/10/2018] [Indexed: 12/25/2022]
Abstract
Tissue-resident macrophages form an essential part of the first line of defense in all tissues of the body. Next to their immunological role, they play an important role in maintaining tissue homeostasis. Recently, it was shown that they are primarily of embryonic origin. During embryogenesis, precursors originating in the yolk sac and fetal liver colonize the embryonal tissues where they develop into mature tissue-resident macrophages. Their development is governed by two distinct sets of transcription factors. First, in the pre-macrophage stage, a core macrophage program is established by lineage-determining transcription factors. Under the influence of tissue-specific signals, this core program is refined by signal-dependent transcription factors. This nurturing by the niche allows the macrophages to perform tissue-specific functions. In the last 15 years, some of these niche signals and transcription factors have been identified. However, detailed insight in the exact mechanism of development is still lacking.
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Affiliation(s)
- Wouter T'Jonck
- Laboratory of Myeloid Cell Ontogeny and Functional Specialization, VIB-UGent Center for Inflammation Research, Technologiepark 927, 9052 Gent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Technologiepark 927, 9052 Gent, Belgium.
| | - Martin Guilliams
- Laboratory of Myeloid Cell Ontogeny and Functional Specialization, VIB-UGent Center for Inflammation Research, Technologiepark 927, 9052 Gent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Technologiepark 927, 9052 Gent, Belgium
| | - Johnny Bonnardel
- Laboratory of Myeloid Cell Ontogeny and Functional Specialization, VIB-UGent Center for Inflammation Research, Technologiepark 927, 9052 Gent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Technologiepark 927, 9052 Gent, Belgium.
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87
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Fu Y, Niu D, Su W, Yang Q, Wang W, Tang B, Li Z, Zhang D, Mao Y, Li C, Li X, Ye S, Su X, Xu F, Sun X, Chen C. Effects of Ca2+/calmodulin‑dependent protein kinase pathway inhibitor KN93 on osteoclastogenesis. Int J Mol Med 2018; 42:2294-2302. [PMID: 30066838 DOI: 10.3892/ijmm.2018.3793] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 07/20/2018] [Indexed: 11/05/2022] Open
Abstract
The aim of the present study was to determine the effects of the Ca2+/calmodulin‑dependent protein kinase pathway inhibitor KN93 on osteoclastogenesis. RAW264.7 cells were incubated with macrophage colony‑stimulating factor (M‑CSF) + receptor activator of nuclear factor kappa‑light‑chain‑enhancer of activated B cells ligand (RANKL) to stimulate osteoclastogenesis and then treated with 10 µM KN93. The methods included tartrate‑resistant acid phosphatase (TRAP) staining, bone resorption activity assays, filamentous (F)‑actin staining, determination of intracellular calcium ([Ca2+]i) levels, monitoring of osteoclast‑specific gene expression levels and measurement of key transcription factors protein levels. The results suggested that KN93 inhibited the formation of TRAP‑positive multinucleated cells, shaping of F‑actin rings and resorption activity of the cells. In addition, KN93 decreased the concentration of [Ca2+]i, expression levels of osteoclast specific genes and protein levels of critical transcription factors in the M‑CSF + RANKL‑induced osteoclast model. In summary, KN93 may directly affect the differentiation and activation of osteoclasts, potentially through the Ca2+/calmodulin‑dependent protein kinase signaling pathway.
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Affiliation(s)
- Yingxiao Fu
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Dequn Niu
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Wenfang Su
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Qingling Yang
- Department of Medical Laboratory, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Wenrui Wang
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Baoding Tang
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Zhongwen Li
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Ding Zhang
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Yingji Mao
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Chuang Li
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Xue Li
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Shihao Ye
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Xu Su
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Fanyuan Xu
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Xuemin Sun
- Department of Clinical Medicine, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Changjie Chen
- Department of Bioscience, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
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Fujimura M, Usuki F. Methylmercury induces oxidative stress and subsequent neural hyperactivity leading to cell death through the p38 MAPK-CREB pathway in differentiated SH-SY5Y cells. Neurotoxicology 2018; 67:226-233. [PMID: 29913201 DOI: 10.1016/j.neuro.2018.06.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 05/13/2018] [Accepted: 06/13/2018] [Indexed: 12/20/2022]
Abstract
Methylmercury (MeHg) induces site-specific cerebrocortical neuronal cell death. In our previous study using an in vivo mouse model, we reported that MeHg-induced cerebrocortical neuronal cell death may be due to neural hyperactivity triggered by activation of kinase pathways. However, the detailed molecular mechanism remained to be completely understood. In this study, we analyzed detailed signaling pathways for MeHg-induced neuronal cell death using all-trans-retinoic acid (RA) differentiated SH-SY5Y cells, which show neuron-like morphological changes and express neuron/synapse markers for cerebrocortical neurons. Time course studies revealed that MeHg-induced upregulation of c-fos, a marker of neural activation, preceded neuronal cell death. These results were similar to those observed in a MeHg-intoxicated mouse model. We observed early expression of the oxidative stress marker thymidine glycol followed by activation of p44/42 mitogen-activated protein kinase (MAPK) and p38 MAPK, and an increase in cAMP response element binding protein (CREB). Investigation of the effects of specific kinase inhibitors revealed that SB203580, a specific inhibitor for p38 MAPK, significantly blocked the upregulation of c-fos and the subsequent neuronal cell death. In contrast, PD98059 and U0126, specific inhibitors for p44/p42 MAPK, showed no effects on MeHg-induced neurotoxicity. Furthermore, the antioxidants Trolox and edaravone significantly suppressed MeHg-induced thymidine glycol expression, p38 MAPK-CREB pathway activation, and neurotoxicity. Altogether, these results suggest that MeHg-induced oxidative stress and subsequent activation of the p38 MAPK-CREB pathway contribute to cerebrocortical neuronal hyperactivity and subsequent neuronal cell death.
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Affiliation(s)
- Masatake Fujimura
- Department of Basic Medical Sciences, National Institute for Minamata Disease, Kumamoto, Japan.
| | - Fusako Usuki
- Department of Clinical Medicine, National Institute for Minamata Disease, Kumamoto, Japan
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89
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Kang JH, Lim H, Lee DS, Yim M. Montelukast inhibits RANKL‑induced osteoclast formation and bone loss via CysLTR1 and P2Y12. Mol Med Rep 2018; 18:2387-2398. [PMID: 29916540 DOI: 10.3892/mmr.2018.9179] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 04/17/2018] [Indexed: 11/06/2022] Open
Abstract
Osteoclasts (OCs) are resorptive cells responsible for bone erosion in diseases, including osteoporosis, periodontitis and rheumatoid arthritis. Montelukast is a cysteinyl leukotriene receptor 1 (CysLTR1) antagonist clinically used for the treatment of asthma. In the present study, the role of CysLTR1 on OC formation and bone loss was investigated using montelukast. Montelukast inhibited receptor activator of nuclear factor‑κB ligand (RANKL)‑induced OC formation in cultures of mouse bone marrow macrophages. Additionally, montelukast suppressed actin ring formation and bone resorption activity of differentiated OCs. The inhibitory effect of montelukast was associated with impaired activation of extracellular signal‑regulated kinase, AKT serine/threonine kinase, and/or phospholipase Cγ2 signaling pathways downstream of RANK, followed by decreased expression of nuclear factor of activated T cells c1. Notably, OC formation was efficiently restored by addition of adenosine diphosphate, a P2Y12 agonist, as well as by addition of CysLT. Furthermore, similar to montelukast, P2Y12 blockade by a pharmacological inhibitor or siRNAs suppressed OC differentiation. These data indicate the involvement of the P2Y12 receptor in the inhibitory effect of montelukast on osteoclastogenesis. In vivo, montelukast significantly inhibited inflammation‑induced osteoclastogenesis in the calvarial model. Montelukast also served a protective role in a murine ovariectomy (OVX)‑ and unloading‑induced bone loss model. Altogether, these results confirmed that the CysLTR1 antagonist exerted an inhibitory effect on OC formation in vitro and in vivo. It may be useful for the treatment of bone diseases associated with excessive bone resorption.
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Affiliation(s)
- Ju-Hee Kang
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Sookmyung Women's University, Seoul 140‑742, Republic of Korea
| | - Hyungsik Lim
- Department of Physics, Hunter College of The City University of New York, New York, NY 10065, USA
| | - Dong-Seok Lee
- Department of Natural Sciences, School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, College of Natural Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Mijung Yim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Sookmyung Women's University, Seoul 140‑742, Republic of Korea
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90
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Liu H, Chen C, Gao Z, Min J, Gu Y, Jian J, Jiang X, Cai H, Ebersberger I, Xu M, Zhang X, Chen J, Luo W, Chen B, Chen J, Liu H, Li J, Lai R, Bai M, Wei J, Yi S, Wang H, Cao X, Zhou X, Zhao Y, Wei K, Yang R, Liu B, Zhao S, Fang X, Schartl M, Qian X, Wang W. The draft genome of blunt snout bream (Megalobrama amblycephala) reveals the development of intermuscular bone and adaptation to herbivorous diet. Gigascience 2018; 6:1-13. [PMID: 28535200 PMCID: PMC5570040 DOI: 10.1093/gigascience/gix039] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 05/20/2017] [Indexed: 01/24/2023] Open
Abstract
The blunt snout bream Megalobrama amblycephala is the economically most important cyprinid fish species. As an herbivore, it can be grown by eco-friendly and resource-conserving aquaculture. However, the large number of intermuscular bones in the trunk musculature is adverse to fish meat processing and consumption. As a first towards optimizing this aquatic livestock, we present a 1.116-Gb draft genome of M. amblycephala, with 779.54 Mb anchored on 24 linkage groups. Integrating spatiotemporal transcriptome analyses, we show that intermuscular bone is formed in the more basal teleosts by intramembranous ossification and may be involved in muscle contractibility and coordinating cellular events. Comparative analysis revealed that olfactory receptor genes, especially of the beta type, underwent an extensive expansion in herbivorous cyprinids, whereas the gene for the umami receptor T1R1 was specifically lost in M. amblycephala. The composition of gut microflora, which contributes to the herbivorous adaptation of M. amblycephala, was found to be similar to that of other herbivores. As a valuable resource for the improvement of M. amblycephala livestock, the draft genome sequence offers new insights into the development of intermuscular bone and herbivorous adaptation.
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Affiliation(s)
- Han Liu
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Chunhai Chen
- Beijing Genomics Institute (BGI)-Shenzhen, Shenzhen 518083, China
| | - Zexia Gao
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Jiumeng Min
- Beijing Genomics Institute (BGI)-Shenzhen, Shenzhen 518083, China
| | - Yongming Gu
- Guangdong Haid Group Co., Ltd., Guangzhou 511400, China
| | - Jianbo Jian
- Beijing Genomics Institute (BGI)-Shenzhen, Shenzhen 518083, China
| | - Xiewu Jiang
- Guangdong Haid Group Co., Ltd., Guangzhou 511400, China
| | - Huimin Cai
- Beijing Genomics Institute (BGI)-Shenzhen, Shenzhen 518083, China
| | - Ingo Ebersberger
- Department for Applied Bioinformatics, Institute for Cell Biology and Neuroscience, Goethe University, Frankfurt D-60438, Germany
| | - Meng Xu
- Beijing Genomics Institute (BGI)-Shenzhen, Shenzhen 518083, China
| | - Xinhui Zhang
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Jianwei Chen
- Beijing Genomics Institute (BGI)-Shenzhen, Shenzhen 518083, China
| | - Wei Luo
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Boxiang Chen
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China.,Guangdong Haid Group Co., Ltd., Guangzhou 511400, China
| | - Junhui Chen
- Beijing Genomics Institute (BGI)-Shenzhen, Shenzhen 518083, China
| | - Hong Liu
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Jiang Li
- Beijing Genomics Institute (BGI)-Shenzhen, Shenzhen 518083, China
| | - Ruifang Lai
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Mingzhou Bai
- Beijing Genomics Institute (BGI)-Shenzhen, Shenzhen 518083, China
| | - Jin Wei
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Shaokui Yi
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Huanling Wang
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiaojuan Cao
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiaoyun Zhou
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Yuhua Zhao
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Kaijian Wei
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Ruibin Yang
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Bingnan Liu
- Guangdong Haid Group Co., Ltd., Guangzhou 511400, China
| | - Shancen Zhao
- Beijing Genomics Institute (BGI)-Shenzhen, Shenzhen 518083, China
| | - Xiaodong Fang
- Beijing Genomics Institute (BGI)-Shenzhen, Shenzhen 518083, China
| | - Manfred Schartl
- Physiological Chemistry, University of Würzburg, Biozentrum, Am Hubland, and Comprehensive Cancer Center Mainfranken, University Clinic Würzburg, Würzburg 97070, Germany.,Texas A&M Institute for Advanced Study and Department of Biology, Texas A&M University, College Station, TX 77843, USA
| | - Xueqiao Qian
- Guangdong Haid Group Co., Ltd., Guangzhou 511400, China
| | - Weimin Wang
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
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91
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Tsuru M, Ono A, Umeyama H, Takeuchi M, Nagata K. Ubiquitin-dependent proteolysis of CXCL7 leads to posterior longitudinal ligament ossification. PLoS One 2018; 13:e0196204. [PMID: 29782494 PMCID: PMC5962073 DOI: 10.1371/journal.pone.0196204] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 04/09/2018] [Indexed: 11/18/2022] Open
Abstract
Ossification of the posterior longitudinal ligament (OPLL), a spinal ligament, reduces the range of motion in limbs. No treatment is currently available for OPLL, which is why therapies are urgently needed. OPLL occurs in obesity, is more common in men, and has an onset after 40 years of age. The mechanisms underlying OPLL remain unclear. In this study, we performed a serum proteomic analysis in both OPLL patients and healthy subjects to identify factors potentially involved in the development of OPLL, and found reduced levels of a protein that might underlie the pathology of OPLL. We isolated the protein, determined its amino acid sequence, and identified it as chemokine (C-X-C motif) ligand 7 (CXCL7). Based on these proteomics findings, we generated a CXCL7 knockout mouse model to study the molecular mechanisms underlying OPLL. CXCL7-null mice presented with a phenotype of OPLL, showing motor impairment, heterotopic ossification in the posterior ligament tissue, and osteoporosis in vertebrate tissue. To identify the mechanisms of CXCL7 deficiency in OPLL, we searched for single nucleotide polymorphisms and altered DNA exons, but no abnormalities were found. Although miR-340 levels were found to be high in an miRNA array, they were insufficient to reduce CXCL7 levels. Ubiquitin C-terminal hydrolase1 (UCHL1) was found to be overexpressed in CXCL7-null mice and in the sera of patients with OPLL, and was correlated with OPLL severity. Post-translational modifications of proteins with ubiquitin and ubiquitin-like modifiers, orchestrated by a cascade of specialized ubiquitin activating enzyme (E1), ubiquitin conjugating enzyme (E2), and ubiquitin ligase (E3) enzymes, are thought to control a wide range of cellular processes, and alterations in the ubiquitin–proteasome system have been associated with several degenerative disorders. In addition, the OPLL tissue of CXCL7-null mouse and its primary cells expressed the antibody to ubiquitin (linkage-specific K48). Our data clearly show decreased CXCL7 levels in patients with OPLL, and that OPLL developed in mice lacking CXCL7. Tumor necrosis factor receptor-associated factor (TRAF)6 expression was decreased in CXCL7-null mouse primary cells. Furthermore, K48 polyubiquitination was found in posterior longitudinal ligament ossified tissue and primary cells from CXCL7-null mice. We performed a phosphoproteomics analysis in CXCL7-deficient mice and identified increased phosphorylation of mitogen-activated protein kinase kinase (ME3K)15, ubiquitin protein ligase E3C (UBE3C) and protein kinase C (PKC) alpha, suggesting that ubiquitin-dependent degradation is involved in CXCL7 deficiency. Future studies in the CXCL7-null mouse model are, therefore, warranted to investigate the role of ubiquitination in the onset of OPLL. In conclusion, CXCL7 levels may be useful as a serum marker for the progression of OPLL. This study also suggests that increasing CXCL7 levels in patients can serve as an effective therapeutic strategy for the treatment of OPLL.
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Affiliation(s)
- Michiyo Tsuru
- Clinical Proteomics and Gene Therapy Laboratory, Kurume University, Fukuoka, Japan
| | - Atsushi Ono
- Department of Orthopaedic Surgery, Hirosaki Memorial Hospital, Hirosaki, Japan
| | - Hideaki Umeyama
- Department of Biological Science, Chuo University, Tokyo, Japan
| | - Masahiro Takeuchi
- Department of Clinical Medicine (Biostatistics), Kitasato University School of Pharmacy, Tokyo, Japan
| | - Kensei Nagata
- Department of Orthopaedic Surgery, Kurume University School of Medicine, Fukuoka, Japan
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92
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Kim I, Kim JH, Kim K, Seong S, Kim N. Tusc2/Fus1 regulates osteoclast differentiation through NF-κB and NFATc1. BMB Rep 2018; 50:454-459. [PMID: 28391779 PMCID: PMC5625692 DOI: 10.5483/bmbrep.2017.50.9.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Indexed: 01/20/2023] Open
Abstract
Tumor suppressor candidate 2 (Tusc2, also known as Fus1) regulates calcium signaling, and Ca2+-dependent nuclear factor of activated T-cells (NFAT) and nuclear factor kappa B (NF-κB) pathways, which play roles in osteoclast differentiation. However, the role of Tusc2 in osteoclasts remains unknown. Here, we report that Tusc2 positively regulates the differentiation of osteoclasts. Overexpression of Tusc2 in osteoclast precursor cells enhanced receptor activator of nuclear factor κB ligand (RANKL)-induced osteoclast differentiation. In contrast, small interfering RNA-mediated knockdown of Tusc2 strongly inhibited osteoclast differentiation. In addition, Tusc2 induced the activation of RANKL-mediated NF-κB and calcium/calmodulin-dependent kinase IV (CaMKIV)/cAMP-response element (CRE)-binding protein CREB signaling cascades. Taken together, these results suggest that Tusc2 acts as a positive regulator of RANKL-mediated osteoclast differentiation.
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Affiliation(s)
- Inyoung Kim
- Departments of Pharmacology, Chonnam National University Medical School, Gwangju 61469, Korea
| | - Jung Ha Kim
- Departments of Pharmacology, Chonnam National University Medical School, Gwangju 61469, Korea
| | - Kabsun Kim
- Departments of Pharmacology, Chonnam National University Medical School, Gwangju 61469, Korea
| | - Semun Seong
- Departments of Pharmacology and Biomedical Sciences, Chonnam National University Medical School, Gwangju 61469, Korea
| | - Nacksung Kim
- Departments of Pharmacology and Biomedical Sciences, Chonnam National University Medical School, Gwangju 61469, Korea
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93
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Abstract
Aberrant or prolonged immune responses often affect bone metabolism. The investigation on bone destruction observed in autoimmune arthritis contributed to the development of research area on effect of the immune system on bone. A number of reports on bone phenotypes of immunocompromised mice indicate that the immune and skeletal systems share various molecules, including transcription factors, signaling molecules, and membrane receptors, suggesting the interplay between the two systems. Furthermore, much attention has been paid to the modulation of immune cells, including hematopoietic progenitor cells, by bone cells in the bone marrow. Thus, osteoimmunology which deals with the crosstalk and shared mechanisms of the bone and immune systems became the conceptual framework fundamental to a proper understanding of both systems and the development of new therapeutic strategies.
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Affiliation(s)
- Asuka Terashima
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hiroshi Takayanagi
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan.
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94
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Liu J, Jin P, Lin X, Zhou Q, Wang F, Liu S, Xi S. Arsenite increases Cyclin D1 expression through coordinated regulation of the Ca 2+/NFAT2 and NF-κB pathways via ERK/MAPK in a human uroepithelial cell line. Metallomics 2018. [PMID: 29528074 DOI: 10.1039/c7mt00305f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
To understand the direct link between Cyclin D1, and nuclear factor of activated T cells 2 (NFAT2) and nuclear factor (NF)-κB in arsenic-treated bladder cells, as well as the association between MAPK and NFAT signaling, we determined whether or not the Ca2+/NFAT pathway is activated in an arsenic-treated normal urothelial cell line and determined the roles of NFAT and NF-κB signals in the regulation of Cyclin D1 expression. The SV-40 immortalized human uroepithelial cell line, SV-HUC-1, was treated with NaAsO2 for 24 h (0, 1, 2, 4, 8, and 10 μM) and 10, 20, 30, and 40 weeks (0 and 0.5 μM). We found that arsenite increased the intracellular Ca2+ levels and induced NFAT2 nuclear translocation after treatment for 24 h. The level of NFAT2 mRNA and expression of total protein and nuclear protein were increased after long-term treatment with 0.5 μM arsenite for 30 and 40 weeks compared to the cells treated for 24 h. In addition, NF-κB p50 and p65 nuclear protein expression increased significantly in cells treated with 2-8 μM arsenite for 24 h, which was consistent with NFAT2 nuclear expression. Furthermore, an ERK inhibitor (U0126) significantly reduced the expression of NFAT2 nuclear protein, and an ERK and JNK inhibitor decreased the levels of p65 and p50 nuclear protein. Cyclin D1 is known as a proto-oncogene and the level of this protein was increased in SV-HUC-1 cells treated with arsenite for 24 h and long-term. An NFAT inhibitor (CsA) and NF-κB inhibitor (PDTC) all markedly reduced Cyclin D1 protein expression. Treatment with U0126 also significantly decreased Cyclin D1 protein expression while JNK and p38 inhibitors did not attenuate the arsenite-associated increase in Cyclin D1 protein expression. The results suggest that regulation of Cyclin D1 protein expression by arsenite in SV-HUC-1 cells is dependent on ERK/NFAT2 and ERK/NF-κB, but is not dependent on JNK or p38.
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Affiliation(s)
- Jieyu Liu
- Department of Environmental and Occupational Health, Liaoning Provincial Key Laboratory of Arsenic Biological Effect and Poisoning, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province 110122, P. R. China.
| | - Peiyu Jin
- Department of Environmental and Occupational Health, Liaoning Provincial Key Laboratory of Arsenic Biological Effect and Poisoning, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province 110122, P. R. China.
| | - Xiaoli Lin
- Department of Environmental and Occupational Health, Liaoning Provincial Key Laboratory of Arsenic Biological Effect and Poisoning, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province 110122, P. R. China.
| | - Qing Zhou
- Department of Environmental and Occupational Health, Liaoning Provincial Key Laboratory of Arsenic Biological Effect and Poisoning, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province 110122, P. R. China.
| | - Fei Wang
- Department of Environmental and Occupational Health, Liaoning Provincial Key Laboratory of Arsenic Biological Effect and Poisoning, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province 110122, P. R. China.
| | - Shengnan Liu
- Department of Environmental and Occupational Health, Liaoning Provincial Key Laboratory of Arsenic Biological Effect and Poisoning, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province 110122, P. R. China.
| | - Shuhua Xi
- Department of Environmental and Occupational Health, Liaoning Provincial Key Laboratory of Arsenic Biological Effect and Poisoning, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province 110122, P. R. China.
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95
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96
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Kim JH, Kim K, Kim I, Seong S, Lee KB, Kim N. BCAP promotes osteoclast differentiation through regulation of the p38-dependent CREB signaling pathway. Bone 2018; 107:188-195. [PMID: 29223746 DOI: 10.1016/j.bone.2017.12.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 12/04/2017] [Accepted: 12/05/2017] [Indexed: 12/16/2022]
Abstract
Many studies have determined that PI3K-Akt signaling pathways play important roles in osteoclast differentiation and function. In the present study, we investigated the roles of B-cell adaptor for PI3K (BCAP), which is a PI3K binding molecule, in osteoclasts. Overexpression of BCAP in osteoclast precursor cells enhanced osteoclast differentiation induced by tumor necrosis factor alpha (TNF-α) as well as receptor activator of nuclear factor-κB ligand (RANKL). Conversely, osteoclast differentiation mediated by both cytokines was attenuated when BCAP expression was downregulated using small interfering RNA. Notably, BCAP induced Akt activation only upon stimulation by RANKL, but not by TNF-α. However, BCAP activated p38-dependent cAMP response element-binding protein (CREB) phosphorylation induced by both RANKL and TNF-α. Collectively, we showed that BCAP plays an important role in osteoclast differentiation by regulating the p38-dependent CREB signaling pathway, and that BCAP might be a new therapeutic target for bone diseases.
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Affiliation(s)
- Jung Ha Kim
- Department of Pharmacology, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
| | - Kabsun Kim
- Department of Pharmacology, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
| | - Inyoung Kim
- Department of Pharmacology, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
| | - Semun Seong
- Department of Pharmacology, Chonnam National University Medical School, Gwangju 61469, Republic of Korea; Department of Biomedical Sciences, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
| | - Keun-Bae Lee
- Department of Orthopaedic Surgery, Chonnam National University Medical School and Hospital, Gwangju 61469, Republic of Korea
| | - Nacksung Kim
- Department of Pharmacology, Chonnam National University Medical School, Gwangju 61469, Republic of Korea; Department of Biomedical Sciences, Chonnam National University Medical School, Gwangju 61469, Republic of Korea.
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97
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Kim RY, Seong Y, Cho TH, Lee B, Kim IS, Hwang SJ. Local administration of nuclear factor of activated T cells (NFAT) c1 inhibitor to suppress early resorption and inflammation induced by bone morphogenetic protein-2. J Biomed Mater Res A 2018; 106:1299-1310. [PMID: 29316218 DOI: 10.1002/jbm.a.36332] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 11/15/2017] [Accepted: 01/05/2018] [Indexed: 11/05/2022]
Abstract
Nuclear factor of activated T cells (NFAT)-c1 is known as a key regulator in osteoclast differentiation and immune response. This study is a follow-up to our previous study showing the antiresorptive activity of VIVIT, a peptide type NFATc1 inhibitor, using absorbable collagen sponge (ACS). This study aimed to investigate the effective concentration range of local VIVIT that suppresses early excessive osteoclast activation and inflammation induced by high-dose recombinant human bone morphogenetic protein (rhBMP)-2 and concomitantly enhances bone healing in a rat critical-sized calvaria defect model. High-dose rhBMP-2 (40 μg/defect) alone significantly increased in vivo osteoclast activation and expression of the inflammatory cytokines interleukin-1β and transforming necrosis factor-α on the scaffold at 7 days after surgery. However, rhBMP-2 had no direct effect on osteoclast activation in vitro. Osteoclast activation by rhBMP-2 was significantly suppressed by combined treatment with VIVIT at concentrations of 75 and 150 μM, but not at 15 μM, whereas suppression of inflammation occurred at all doses of VIVIT. Microcomputed tomography at 4 and 8 weeks after implantation revealed that the combination of rhBMP-2 and VIVIT at 75 μM VIVIT led to a greater bone fraction at the initial defect area, compared with rhBMP-2 alone. These findings revealed that local administration of VIVIT at certain concentrations has multiple positive effects that weaken early excessive osteoimmunological responses and enhance bone healing after rhBMP-2 administration. VIVIT has the potential to expand the therapeutic area of high-dose rhBMP-2 therapy to inflammatory bone loss. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 1299-1310, 2018.
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Affiliation(s)
- Ri Youn Kim
- Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 110-749, Republic of Korea
| | - Yeju Seong
- Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 110-749, Republic of Korea
| | - Tae Hyung Cho
- Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 110-749, Republic of Korea
| | - Beomseok Lee
- Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 110-749, Republic of Korea
| | - In Sook Kim
- Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 110-749, Republic of Korea
| | - Soon Jung Hwang
- Dental Research Institute, School of Dentistry, Seoul National University, Seoul, 110-749, Republic of Korea.,Department of Oral and Maxillofacial Surgery, School of Dentistry, Seoul National University, Seoul, 110-749, Republic of Korea
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98
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Yang W, Han W, Qin A, Wang Z, Xu J, Qian Y. The emerging role of Hippo signaling pathway in regulating osteoclast formation. J Cell Physiol 2018; 233:4606-4617. [PMID: 29219182 DOI: 10.1002/jcp.26372] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 12/01/2017] [Indexed: 12/14/2022]
Abstract
A delicate balance between osteoblastic bone formation and osteoclastic bone resorption is crucial for bone homeostasis. This process is regulated by the Hippo signaling pathway including key regulatory molecules RASSF2, NF2, MST1/2, SAV1, LATS1/2, MOB1, YAP, and TAZ. It is well established that the Hippo signaling pathway plays an important part in regulating osteoblast differentiation, but its role in osteoclast formation and activation remains poorly understood. In this review, we discuss the emerging role of Hippo-signaling pathway in osteoclast formation and bone homeostasis. It is revealed that specific molecules of the Hippo-signaling pathway take part in a stage specific regulation in pre-osteoclast proliferation, osteoclast differentiation and osteoclast apoptosis and survival. Upon activation, MST and LAST, transcriptional co-activators YAP and TAZ bind to the members of the TEA domain (TEAD) family transcription factors, and influence osteoclast differentiation via regulating the expression of downstream target genes such as connective tissue growth factor (CTGF/CCN2) and cysteine-rich protein 61 (CYR61/CCN1). In addition, through interacting or cross talking with RANKL-mediated signaling cascades including NF-κB, MAPKs, AP1, and NFATc1, Hippo-signaling molecules such as YAP/TAZ/TEAD complex, RASSF2, MST2, and Ajuba could also potentially modulate osteoclast differentiation and function. Elucidating the roles of the Hippo-signaling pathway in osteoclast development and specific molecules involved is important for understanding the mechanism of bone homeostasis and diseases.
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Affiliation(s)
- Wanlei Yang
- Department of Orthopaedics, Shaoxing People's Hospital (Shaoxing Hospital of Zhejiang University), Shaoxing, Zhejiang, P. R. China
| | - Weiqi Han
- Department of Orthopaedics, Shaoxing People's Hospital (Shaoxing Hospital of Zhejiang University), Shaoxing, Zhejiang, P. R. China
| | - An Qin
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ziyi Wang
- School of Biomedical Sciences, The University of Western Australia, Perth, WA, Australia
| | - Jiake Xu
- School of Biomedical Sciences, The University of Western Australia, Perth, WA, Australia
| | - Yu Qian
- Department of Orthopaedics, Shaoxing People's Hospital (Shaoxing Hospital of Zhejiang University), Shaoxing, Zhejiang, P. R. China
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99
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Occlusal disharmony-induced stress causes osteopenia of the lumbar vertebrae and long bones in mice. Sci Rep 2018; 8:173. [PMID: 29317698 PMCID: PMC5760568 DOI: 10.1038/s41598-017-18037-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 11/27/2017] [Indexed: 02/08/2023] Open
Abstract
Excessive exposure to glucocorticoids causes osteoporosis in children and adults. Occlusal disharmony is known to induce an increase in serum corticosteroid levels in murine models, but the influence of occlusal disharmony-induced stress on the bone mass during the growth period has not yet been clarified. The purpose of this study was to investigate whether occlusal disharmony-induced stress decreases bone mass. Five-week-old C57BL/6J male mice were used. A 0.5-mm increase in the vertical height of occlusion was used to induce occlusal disharmony for a period of 7 days. Serum corticosterone levels were significantly higher on post-induction day 7, with radiological evidence of osteopenia of the third lumbar vertebra and long bones of the hind limbs. Osteopenia was associated with a reduction of the mechanical properties of the tibia and femur, with significant suppression of bone formation parameters and an increase in bone resorption parameters, as evaluated by bone histomorphometric analysis of the tibial/femur metaphysis. Our findings at the level of bones were supported by our assessment of serum markers of systemic metabolism. Therefore, occlusal disharmony-induced stress may lead to osteopenia and reduce the mechanical strength of bone through an increase in serum glucocorticoid levels in mice.
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100
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Grössinger EM, Kang M, Bouchareychas L, Sarin R, Haudenschild DR, Borodinsky LN, Adamopoulos IE. Ca 2+-Dependent Regulation of NFATc1 via KCa3.1 in Inflammatory Osteoclastogenesis. THE JOURNAL OF IMMUNOLOGY 2017; 200:749-757. [PMID: 29246953 DOI: 10.4049/jimmunol.1701170] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 11/02/2017] [Indexed: 12/21/2022]
Abstract
In inflammatory arthritis, the dysregulation of osteoclast activity by proinflammatory cytokines, including TNF, interferes with bone remodeling during inflammation through Ca2+-dependent mechanisms causing pathological bone loss. Ca2+-dependent CREB/c-fos activation via Ca2+-calmodulin kinase IV (CaMKIV) induces transcriptional regulation of osteoclast-specific genes via NFATc1, which facilitate bone resorption. In leukocytes, Ca2+ regulation of NFAT-dependent gene expression oftentimes involves the activity of the Ca2+-activated K+ channel KCa3.1. In this study, we evaluate KCa3.1 as a modulator of Ca2+-induced NFAT-dependent osteoclast differentiation in inflammatory bone loss. Microarray analysis of receptor activator of NF-κB ligand (RANKL)-activated murine bone marrow macrophage (BMM) cultures revealed unique upregulation of KCa3.1 during osteoclastogenesis. The expression of KCa3.1 in vivo was confirmed by immunofluorescence staining on multinucleated cells at the bone surface of inflamed mouse joints. Experiments on in vitro BMM cultures revealed that KCa3.1-/- and TRAM-34 treatment significantly reduced the expression of osteoclast-specific genes (p < 0.05) alongside decreased osteoclast formation (p < 0.0001) in inflammatory (RANKL+TNF) and noninflammatory (RANKL) conditions. In particular, live cell Ca2+ imaging and Western blot analysis showed that TRAM-34 pretreatment decreased transient RANKL-induced Ca2+ amplitudes in BMMs by ∼50% (p < 0.0001) and prevented phosphorylation of CaMKIV. KCa3.1-/- reduced RANKL+/-TNF-stimulated phosphorylation of CREB and expression of c-fos in BMMs (p < 0.01), culminating in decreased NFATc1 protein expression and transcriptional activity (p < 0.01). These data indicate that KCa3.1 regulates Ca2+-dependent NFATc1 expression via CaMKIV/CREB during inflammatory osteoclastogenesis in the presence of TNF, corroborating its role as a target candidate for the treatment of bone erosion in inflammatory arthritis.
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Affiliation(s)
- Eva M Grössinger
- Division of Rheumatology, Allergy, and Clinical Immunology, Department of Internal Medicine, University of California Davis, Davis, CA 95616
| | - Mincheol Kang
- Division of Rheumatology, Allergy, and Clinical Immunology, Department of Internal Medicine, University of California Davis, Davis, CA 95616
| | - Laura Bouchareychas
- Division of Rheumatology, Allergy, and Clinical Immunology, Department of Internal Medicine, University of California Davis, Davis, CA 95616
| | - Ritu Sarin
- Division of Rheumatology, Allergy, and Clinical Immunology, Department of Internal Medicine, University of California Davis, Davis, CA 95616
| | | | - Laura N Borodinsky
- Department of Physiology and Membrane Biology, University of California Davis, Davis, CA 95616; and.,Institute for Pediatric Regenerative Medicine, Shriners Hospital for Children - Northern California, Sacramento, CA 95817
| | - Iannis E Adamopoulos
- Division of Rheumatology, Allergy, and Clinical Immunology, Department of Internal Medicine, University of California Davis, Davis, CA 95616; .,Institute for Pediatric Regenerative Medicine, Shriners Hospital for Children - Northern California, Sacramento, CA 95817
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