1
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Vanacker JM, Forcet C. ERRα: unraveling its role as a key player in cell migration. Oncogene 2024; 43:379-387. [PMID: 38129506 DOI: 10.1038/s41388-023-02899-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 10/31/2023] [Accepted: 11/14/2023] [Indexed: 12/23/2023]
Abstract
Cell migration is essential throughout the life of multicellular organisms, and largely depends on the spatial and temporal regulation of cytoskeletal dynamics, cell adhesion and signal transduction. Interestingly, Estrogen-related receptor alpha (ERRα) has been identified as a major regulator of cell migration in both physiological and pathological conditions. ERRα is an orphan member of the nuclear hormone receptor superfamily of transcription factors and displays many biological functions. ERRα is a global regulator of energy metabolism, and it is also highly involved in bone homeostasis, development, differentiation, immunity and cancer progression. Importantly, in some instances, the regulation of these biological processes relies on the ability to orchestrate cell movements. Therefore, this review describes how ERRα-mediated cell migration contributes not only to tissue homeostasis but also to tumorigenesis and metastasis, and highlights the molecular and cellular mechanisms by which ERRα finely controls the cell migratory potential.
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Affiliation(s)
- Jean-Marc Vanacker
- Centre de Recherche en Cancérologie de Lyon, CNRS UMR5286, Inserm U1052, Université de Lyon, Lyon, France
| | - Christelle Forcet
- Institut de Génomique Fonctionnelle de Lyon, UMR5242, Ecole Normale Supérieure de Lyon, Centre National de la Recherche Scientifique, Université Claude Bernard-Lyon 1, Lyon, France.
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2
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Feng C, Xu Z, Tang X, Cao H, Zhang G, Tan J. Estrogen-Related Receptor α: A Significant Regulator and Promising Target in Bone Homeostasis and Bone Metastasis. Molecules 2022; 27:3976. [PMID: 35807221 PMCID: PMC9268386 DOI: 10.3390/molecules27133976] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 06/11/2022] [Accepted: 06/20/2022] [Indexed: 01/23/2023] Open
Abstract
Bone homeostasis is maintained with the balance between bone formation and bone resorption, which is involved in the functional performance of osteoblast and osteoclast. Disruption of this equilibrium usually causes bone disorders including osteoporosis, osteoarthritis, and osteosclerosis. In addition, aberrant activity of bone also contributes to the bone metastasis that frequently occurs in the late stage of aggressive cancers. Orphan nuclear receptor estrogen-related receptor (ERRα) has been demonstrated to control the bone cell fate and the progression of tumor cells in bone through crosstalk with various molecules and signaling pathways. However, the defined function of this receptor in bone is inconsistent and controversial. Therefore, we summarized the latest research and conducted an overview to reveal the regulatory effect of ERRα on bone homeostasis and bone metastasis, this review may broaden the present understanding of the cellular and molecular model of ERRα and highlight its potential implication in clinical therapy.
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Affiliation(s)
- Chun Feng
- School of Pharmacy, Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai 264003, China; (C.F.); (Z.X.)
| | - Zhaowei Xu
- School of Pharmacy, Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai 264003, China; (C.F.); (Z.X.)
| | - Xiaojie Tang
- Department of Spinal Surgery, Yantai Affiliated Hospital of Binzhou Medical University, Yantai 264100, China; (X.T.); (H.C.)
| | - Haifei Cao
- Department of Spinal Surgery, Yantai Affiliated Hospital of Binzhou Medical University, Yantai 264100, China; (X.T.); (H.C.)
| | - Guilong Zhang
- School of Pharmacy, Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai 264003, China; (C.F.); (Z.X.)
| | - Jiangwei Tan
- Department of Spinal Surgery, Yantai Affiliated Hospital of Binzhou Medical University, Yantai 264100, China; (X.T.); (H.C.)
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3
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Abstract
Bone loss associated with estrogen deficiency indicates a fundamental role of these hormones in skeletal growth and bone remodeling. In the last decades, growing recent evidence demonstrated that estrogens can also affect the immune compartment of the bone. In this review, we summarize the impacts of estrogens on bone immune cells and their consequences on bone homeostasis, metastasis settlement into the bone and tumor progression. We also addressed the role of an orphan nuclear receptor ERRalpha (“Estrogen-receptor Related Receptor alpha”) on macrophages and T lymphocytes, and as an immunomodulator in bone metastases. Hence, this review links estrogens to bone immune cells in osteo-oncology.
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Affiliation(s)
- Julien C Marie
- Cancer Research Center of Lyon (CRCL), Tumor Escape Resistance Immunity Department, INSERM-1052, CNRS 5286, Centre Léon Bérard, Université Claude Bernard Lyon 1, Lyon, France
| | - Edith Bonnelye
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020-UMR1277-Canther-Cancer Heterogeneity, Plasticity and Resistance to Therapies, Lille, France
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4
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Abstract
Peroxisome proliferator-activated receptor-γ coactivator-1 (PGC-1) is an inducible co-regulator of nuclear receptors and is involved in a wide variety of biological responses. As the master regulators of mitochondrial biogenesis and function, PGC-1α and PGC-1β have been reported to play key roles in bone metabolism. They can be rapidly induced under conditions of increased metabolic activities, such as osteoblastogenesis and osteoclastogenesis, to fulfill greater energy demand or facilitate other biochemical reactions. PGC-1α and PGC-1β have both overlapping and distinct functions with each other among their target organs. In bone homeostasis, PGC-1α and PGC-1β promote the expression of genes required for mitochondrial biogenesis via coactivator interactions with key transcription factors, respectively regulating osteoblastogenesis and osteoclastogenesis. Here, we review the current understanding of how PGC-1α and PGC-1β affect osteoblastogenesis and osteoclastogenesis, how these two PGC-1 coactivators are regulated in bone homeostasis, and how we can translate these findings into therapeutic potential for bone metabolic diseases.
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Affiliation(s)
- Haoling Chen
- Hospital of Stomatology, Sun Yat-Sen University, 56 Lingyuan Xi Road, Guangzhou, 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, 74 Zhongshan Rd 2, Guangzhou, 510080, China
| | - Wenguo Fan
- Hospital of Stomatology, Sun Yat-Sen University, 56 Lingyuan Xi Road, Guangzhou, 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, 74 Zhongshan Rd 2, Guangzhou, 510080, China
| | - Hongwen He
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, 74 Zhongshan Rd 2, Guangzhou, 510080, China.
| | - Fang Huang
- Hospital of Stomatology, Sun Yat-Sen University, 56 Lingyuan Xi Road, Guangzhou, 510055, China.
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, 74 Zhongshan Rd 2, Guangzhou, 510080, China.
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5
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Huang T, Fu X, Wang N, Yang M, Zhang M, Wang B, Chen T, Majaz S, Wang H, Wong CW, Liu J, Guan M. Andrographolide prevents bone loss via targeting estrogen-related receptor-α-regulated metabolic adaption of osteoclastogenesis. Br J Pharmacol 2021; 178:4352-4367. [PMID: 34233019 DOI: 10.1111/bph.15614] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 05/27/2021] [Accepted: 06/28/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND AND PURPOSE Metabolic adaptation driven by oestrogen-related receptor-α (ERRα/NR3B1) is required to meet the increased energy demand during osteoclast differentiation. Here, we hypothesize that natural product, andrographolide, acts as an ERRα inverse agonist to inhibit osteoclastogenesis. EXPERIMENTAL APPROACH Virtual docking and site-directed mutagenesis analysis were employed to study the binding mode of andrographolide to ERRα. Co-immunoprecipitation, luciferase reporter assay, real-time polymerase chain reaction (PCR) and immunoblot analyses were performed to identify andrographolide as an ERRα inverse agonist. The pharmacological effects of andrographolide in vivo were assessed in mice models of osteopenia induced by either a high-fat diet in male or ovariectomy in female mice. KEY RESULTS ERRα-dependent expression of glutaminase, a rate-limiting enzyme of mitochondrial glutamine anaplerosis, is required for ex vivo bone marrow osteoclast differentiation. Andrographolide inhibited glutaminase expression induced by ERRα and co-activator peroxisome proliferator-activated receptor γ co-activator-1β (PGC-1β), leading to reduction in osteoclastogenesis. Andrographolide acted as an inverse agonist of ERRα by disrupting its interaction with co-activator PGC-1β. Phenylalanine 232, valine 395 and phenylalanine 399 of ERRα ligand-binding domain were confirmed to be essential for this effect. In contrast, glutaminase overexpression restored the impairment triggered by andrographolide. Accordingly, andrographolide suppressed osteoclastic bone resorption and attenuated bone loss in vivo. CONCLUSIONS AND IMPLICATIONS These findings demonstrate that andrographolide acts as an ERRα inverse agonist for perturbation of ERRα/PGC-1β/glutaminase axis-driven metabolic adaption during osteoclast differentiation, implying that andrographolide may be a promising natural compound for preventing physiological and pathological bone loss.
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Affiliation(s)
- Tongling Huang
- Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xuekun Fu
- Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Na Wang
- Guangdong Provincial Key Laboratory of Biocomputing, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Meng Yang
- Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Minyi Zhang
- Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Binxu Wang
- Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Tianke Chen
- Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Sidra Majaz
- Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Huaiyu Wang
- Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Chi-Wai Wong
- NeuMed Pharmaceuticals Limited, Yuen Long, Hong Kong, China
| | - Jinsong Liu
- Guangdong Provincial Key Laboratory of Biocomputing, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Min Guan
- Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
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6
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Yao Y, Cai X, Ren F, Ye Y, Wang F, Zheng C, Qian Y, Zhang M. The Macrophage-Osteoclast Axis in Osteoimmunity and Osteo-Related Diseases. Front Immunol 2021; 12:664871. [PMID: 33868316 PMCID: PMC8044404 DOI: 10.3389/fimmu.2021.664871] [Citation(s) in RCA: 92] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 03/17/2021] [Indexed: 12/11/2022] Open
Abstract
Osteoimmunity is involved in regulating the balance of bone remodeling and resorption, and is essential for maintaining normal bone morphology. The interaction between immune cells and osteoclasts in the bone marrow or joint cavity is the basis of osteoimmunity, in which the macrophage-osteoclast axis plays a vital role. Monocytes or tissue-specific macrophages (macrophages resident in tissues) are an important origin of osteoclasts in inflammatory and immune environment. Although there are many reports on macrophages and osteoclasts, there is still a lack of systematic reviews on the macrophage-osteoclast axis in osteoimmunity. Elucidating the role of the macrophage-osteoclast axis in osteoimmunity is of great significance for the research or treatment of bone damage caused by inflammation and immune diseases. In this article, we introduced in detail the concept of osteoimmunity and the mechanism and regulators of the differentiation of macrophages into osteoclasts. Furthermore, we described the role of the macrophage-osteoclast axis in typical bone damage caused by inflammation and immune diseases. These provide a clear knowledge framework for studying macrophages and osteoclasts in inflammatory and immune environments. And targeting the macrophage-osteoclast axis may be an effective strategy to treat bone damage caused by inflammation and immune diseases.
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Affiliation(s)
- Yao Yao
- Department of Pharmacy, Women's Hospital School of Medicine Zhejiang University, Hangzhou, China
| | - Xiaoyu Cai
- Department of Clinical Pharmacology, Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Affiliated Hangzhou First People's Hospital, Cancer Center, Zhejiang University School of Medicine, Hangzhou, China
| | - Fujia Ren
- Department of Pharmacy, Hangzhou Women's Hospital, Hangzhou, China
| | - Yiqing Ye
- Department of Pharmacy, Women's Hospital School of Medicine Zhejiang University, Hangzhou, China
| | - Fengmei Wang
- Department of Pharmacy, Women's Hospital School of Medicine Zhejiang University, Hangzhou, China
| | - Caihong Zheng
- Department of Pharmacy, Women's Hospital School of Medicine Zhejiang University, Hangzhou, China
| | - Ying Qian
- Department of Pharmacy, Women's Hospital School of Medicine Zhejiang University, Hangzhou, China
| | - Meng Zhang
- Department of Pharmacy, Women's Hospital School of Medicine Zhejiang University, Hangzhou, China
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7
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Tang J, Liu T, Wen X, Zhou Z, Yan J, Gao J, Zuo J. Estrogen-related receptors: novel potential regulators of osteoarthritis pathogenesis. Mol Med 2021; 27:5. [PMID: 33446092 PMCID: PMC7809777 DOI: 10.1186/s10020-021-00270-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 01/08/2021] [Indexed: 12/26/2022] Open
Abstract
Osteoarthritis (OA) is a chronic inflammatory disease that is associated with articular cartilage destruction, subchondral bone alterations, synovitis, and even joint deformity and the loss of joint function. Although current basic research on the pathogenesis of OA has made remarkable progress, our understanding of this disease still needs to be further improved. Recent studies have shown that the estrogen-related receptor (ERR) family members ERRα and ERRγ may play significant roles in the pathogenesis of OA. In this review, we refer to the latest research on ERRs and the pathogenesis of OA, elucidate the structure and physiopathological functions of the ERR orphan nuclear receptor family, and systematically examine the relationship between ERRs and OA at the molecular level. Moreover, we also discuss and predict the capacity of ERRs as potential targets in the clinical treatment of OA.
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Affiliation(s)
- Jinshuo Tang
- Department of Orthopeadics, China-Japan Union Hospital of Jilin University, Changchun, 130033, Jilin, China
| | - Tong Liu
- Department of Orthopeadics, China-Japan Union Hospital of Jilin University, Changchun, 130033, Jilin, China
| | - Xinggui Wen
- Department of Hand Surgery, China-Japan Union Hospital of Jilin University, Changchun, 130033, Jilin, China
| | - Zhongsheng Zhou
- Department of Orthopeadics, China-Japan Union Hospital of Jilin University, Changchun, 130033, Jilin, China
| | - Jingtong Yan
- Department of Orthopeadics, China-Japan Union Hospital of Jilin University, Changchun, 130033, Jilin, China
| | - Jianpeng Gao
- Department of Orthopeadics, China-Japan Union Hospital of Jilin University, Changchun, 130033, Jilin, China
| | - Jianlin Zuo
- Department of Orthopeadics, China-Japan Union Hospital of Jilin University, Changchun, 130033, Jilin, China.
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8
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Abstract
Emerging evidence suggest that macrophage and osteoclast are two competing differentiation outcomes from myeloid progenitors. In this review, we summarize recent advances in the understanding of the molecular mechanisms controlling the polarization of macrophage and osteoclast. These include nuclear receptors/transcription factors such as peroxisome proliferator-activated receptor γ (PPARγ) and estrogen-related receptor α (ERRα), their transcription cofactor PPARγ coactivator 1-β (PGC-1β), metabolic factors such as mitochondrial complex I (CI) component NADH:ubiquinone oxidoreductase iron-sulfur protein 4 (Ndufs4), as well as transmembrane receptors such as very-low-density-lipoprotein receptor (VLDLR). These molecular rheostats promote osteoclast differentiation but suppress proinflammatory macrophage activation and inflammation, by acting lineage-intrinsically, systemically or cross generation. These findings provide new insights to the understanding of the interactions between innate immunity and bone remodeling, advancing the field of osteoimmunology.
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Affiliation(s)
- Dengbao Yang
- Department of Pharmacology, The University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Yihong Wan
- Department of Pharmacology, The University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA.
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9
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Vargas G, Bouchet M, Bouazza L, Reboul P, Boyault C, Gervais M, Kan C, Benetollo C, Brevet M, Croset M, Mazel M, Cayrefourcq L, Geraci S, Vacher S, Pantano F, Filipits M, Driouch K, Bieche I, Gnant M, Jacot W, Aubin JE, Duterque-Coquillaud M, Alix-Panabières C, Clézardin P, Bonnelye E. ERRα promotes breast cancer cell dissemination to bone by increasing RANK expression in primary breast tumors. Oncogene 2019; 38:950-964. [PMID: 30478447 DOI: 10.1038/s41388-018-0579-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 10/20/2018] [Indexed: 02/07/2023]
Abstract
Bone is the most common metastatic site for breast cancer. Estrogen-related-receptor alpha (ERRα) has been implicated in cancer cell invasiveness. Here, we established that ERRα promotes spontaneous metastatic dissemination of breast cancer cells from primary mammary tumors to the skeleton. We carried out cohort studies, pharmacological inhibition, gain-of-function analyses in vivo and cellular and molecular studies in vitro to identify new biomarkers in breast cancer metastases. Meta-analysis of human primary breast tumors revealed that high ERRα expression levels were associated with bone but not lung metastases. ERRα expression was also detected in circulating tumor cells from metastatic breast cancer patients. ERRα overexpression in murine 4T1 breast cancer cells promoted spontaneous bone micro-metastases formation when tumor cells were inoculated orthotopically, whereas lung metastases occurred irrespective of ERRα expression level. In vivo, Rank was identified as a target for ERRα. That was confirmed in vitro in Rankl stimulated tumor cell invasion, in mTOR/pS6K phosphorylation, by transactivation assay, ChIP and bioinformatics analyses. Moreover, pharmacological inhibition of ERRα reduced primary tumor growth, bone micro-metastases formation and Rank expression in vitro and in vivo. Transcriptomic studies and meta-analysis confirmed a positive association between metastases and ERRα/RANK in breast cancer patients and also revealed a positive correlation between ERRα and BRCA1mut carriers. Taken together, our results reveal a novel ERRα/RANK axis by which ERRα in primary breast cancer promotes early dissemination of cancer cells to bone. These findings suggest that ERRα may be a useful therapeutic target to prevent bone metastases.
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Affiliation(s)
- G Vargas
- INSERM-UMR1033, Lyon, France
- University of Lyon1, Lyon, France
| | - M Bouchet
- INSERM-UMR1033, Lyon, France
- University of Lyon1, Lyon, France
- IGFL, Lyon, France
| | - L Bouazza
- INSERM-UMR1033, Lyon, France
- University of Lyon1, Lyon, France
| | - P Reboul
- UMR7365-CNRS-Université de Lorraine, Nancy, France
| | - C Boyault
- Institute for Advanced Biosciences, Grenoble, France
| | - M Gervais
- INSERM-UMR1033, Lyon, France
- University of Lyon1, Lyon, France
| | - C Kan
- INSERM-UMR1033, Lyon, France
- University of Lyon1, Lyon, France
- Center for Cancer Research, University of Sydney, Sydney, Australia
| | - C Benetollo
- University of Lyon1, Lyon, France
- INSERM-U1028-CNRS-UMR5292, Lyon, France
| | - M Brevet
- INSERM-UMR1033, Lyon, France
- Centre de Biologie et de Pathologie Est, Bron, France
| | - M Croset
- INSERM-UMR1033, Lyon, France
- University of Lyon1, Lyon, France
| | - M Mazel
- EA2415-Institut Universitaire de Recherche Clinique, Montpellier, France
| | - L Cayrefourcq
- EA2415-Institut Universitaire de Recherche Clinique, Montpellier, France
| | - S Geraci
- INSERM-UMR1033, Lyon, France
- University of Lyon1, Lyon, France
| | - S Vacher
- Department of Genetics, Institut-Curie, Paris, France
| | - F Pantano
- University-Campus-Bio-Medico, Rome, 00128, Italy
| | - M Filipits
- Department of Surgery and Comprehensive Cancer Center, Medical-University of Vienna, Vienna, Austria
| | - K Driouch
- Department of Genetics, Institut-Curie, Paris, France
| | - I Bieche
- Department of Genetics, Institut-Curie, Paris, France
| | - M Gnant
- Department of Surgery and Comprehensive Cancer Center, Medical-University of Vienna, Vienna, Austria
| | - W Jacot
- Montpellier Cancer Institute, Montpellier, France
| | - J E Aubin
- University of Toronto, Toronto, Canada
| | | | - C Alix-Panabières
- EA2415-Institut Universitaire de Recherche Clinique, Montpellier, France
| | - P Clézardin
- INSERM-UMR1033, Lyon, France
- University of Lyon1, Lyon, France
| | - E Bonnelye
- INSERM-UMR1033, Lyon, France.
- University of Lyon1, Lyon, France.
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10
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Li M, Wan P, Wang W, Yang K, Zhang Y, Han Y. Regulation of osteogenesis and osteoclastogenesis by zoledronic acid loaded on biodegradable magnesium-strontium alloy. Sci Rep 2019; 9:933. [PMID: 30700724 PMCID: PMC6353919 DOI: 10.1038/s41598-018-37091-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 12/02/2018] [Indexed: 02/07/2023] Open
Abstract
Inhibiting osteoclasts and osteoclast precursors to reduce bone resorption is an important strategy to treat osteoclast-related diseases, such as peri-prosthetic osteolysis. In this study, our objective was to study the role of zoledronic acid (ZA), as a highly potent and nitrogen-containing bisphosphonate, in promoting osteogenesis and inhibiting osteoclastogenesis properties of magnesium (Mg)-based implants. ZA was chemically associated with calcium phosphate (CaP) deposited on magnesium-strontium (Mg-Sr) alloy, which was confirmed by the morphological observation, phase composition and drug releasing via SEM, XRD spectrum and High Performance Liquid Chromatography (HPLC), respectively. The in vitro performances indicated that ZA-CaP bilayer coating Mg-Sr alloy could enhance the proliferation and the osteogenic differentiation as well as the mineralization of pre-osteoblasts, however, induce the apoptosis and inhibit the osteoclast differentiation. We further investigated the possible molecular mechanisms by using Quantitative real-time PCR (qRT-PCR) and Western Blotting, and the results showed that ZA-CaP bilayer coating Mg-Sr alloy could regulate the osteogenesis and osteoclastogenesis through the Estrogen Receptor α (ERα) and NF-κB signaling pathway. Moreover, ZA-CaP bilayer coating Mg-Sr alloy could regulate the cross talk of osteoblast-osteoclast and increase the ratio of OPG: RANKL in the co-culture system through OPG/RANKL/RANK signaling pathway, which promoting the balance of bone remodeling process. Therefore, these promising results suggest the potential clinical applications of ZA pretreated Mg-Sr alloys for bone defect repairs and periprosthetical osteolysis due to the excessive differentitation and maturation of osteoclasts.
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Affiliation(s)
- Mei Li
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
- Department of Orthopedics, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Peng Wan
- School of Mechanical Engineering, Dongguan University of Technology, Dongguan, 523808, China.
| | - Weidan Wang
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ke Yang
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Yu Zhang
- Department of Orthopedics, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China.
| | - Yong Han
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China.
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11
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Piao C, Li Z, Ding J, Kong D. Bone Viscoelastic Properties in an Animal Model with Osteoporosis after BMSC-Alendronate Sodium Intervention. J HARD TISSUE BIOL 2019. [DOI: 10.2485/jhtb.28.315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Chengdong Piao
- Department of Orthopaedics, Second Hospital of Jilin University
| | - Zhengwei Li
- Department of Orthopaedics, Second Hospital of Jilin University
| | - Jie Ding
- Department of Stomatology, Affiliated Hospital of Changchun University of Chinese Medicine
| | - Daliang Kong
- Department of Orthopaedics, China-Japan Union Hospital, Jilin University
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12
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Kim H, Kim BK, Ohk B, Yoon H, Kang WY, Cho S, Seong SJ, Lee HW, Yoon Y. Estrogen‐related receptor γ negatively regulates osteoclastogenesis and protects against inflammatory bone loss. J Cell Physiol 2018; 234:1659-1670. [DOI: 10.1002/jcp.27035] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 06/25/2018] [Indexed: 01/01/2023]
Affiliation(s)
- Hyun‐Ju Kim
- Department of Molecular Medicine Cell and Matrix Research Institute, BK21 Plus KNU Biomedical Convergence Program, School of Medicine, Kyungpook National University Daegu Republic of Korea
- Clinical Trial Center, Kyungpook National University Hospital Daegu Republic of Korea
| | - Bo Kyung Kim
- Department of Molecular Medicine Cell and Matrix Research Institute, BK21 Plus KNU Biomedical Convergence Program, School of Medicine, Kyungpook National University Daegu Republic of Korea
- Clinical Trial Center, Kyungpook National University Hospital Daegu Republic of Korea
| | - Boram Ohk
- Department of Molecular Medicine Cell and Matrix Research Institute, BK21 Plus KNU Biomedical Convergence Program, School of Medicine, Kyungpook National University Daegu Republic of Korea
- Clinical Trial Center, Kyungpook National University Hospital Daegu Republic of Korea
| | - Hye‐Jin Yoon
- Clinical Trial Center, Kyungpook National University Hospital Daegu Republic of Korea
| | - Woo Youl Kang
- Clinical Trial Center, Kyungpook National University Hospital Daegu Republic of Korea
| | - Seungil Cho
- Clinical Trial Center, Kyungpook National University Hospital Daegu Republic of Korea
| | - Sook Jin Seong
- Clinical Trial Center, Kyungpook National University Hospital Daegu Republic of Korea
| | - Hae Won Lee
- Clinical Trial Center, Kyungpook National University Hospital Daegu Republic of Korea
| | - Young‐Ran Yoon
- Department of Molecular Medicine Cell and Matrix Research Institute, BK21 Plus KNU Biomedical Convergence Program, School of Medicine, Kyungpook National University Daegu Republic of Korea
- Clinical Trial Center, Kyungpook National University Hospital Daegu Republic of Korea
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13
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He X, Ma S, Tian Y, Wei C, Zhu Y, Li F, Zhang P, Wang P, Zhang Y, Zhong H. ERRα negatively regulates type I interferon induction by inhibiting TBK1-IRF3 interaction. PLoS Pathog 2017; 13:e1006347. [PMID: 28591144 PMCID: PMC5476288 DOI: 10.1371/journal.ppat.1006347] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 06/19/2017] [Accepted: 04/11/2017] [Indexed: 12/21/2022] Open
Abstract
Estrogen-related receptor α (ERRα) is a member of the nuclear receptor superfamily controlling energy homeostasis; however, its precise role in regulating antiviral innate immunity remains to be clarified. Here, we showed that ERRα deficiency conferred resistance to viral infection both in vivo and in vitro. Mechanistically, ERRα inhibited the production of type-I interferon (IFN-I) and the expression of multiple interferon-stimulated genes (ISGs). Furthermore, we found that viral infection induced TBK1-dependent ERRα stabilization, which in turn associated with TBK1 and IRF3 to impede the formation of TBK1-IRF3, IRF3 phosphorylation, IRF3 dimerization, and the DNA binding affinity of IRF3. The effect of ERRα on IFN-I production was independent of its transcriptional activity and PCG-1α. Notably, ERRα chemical inhibitor XCT790 has broad antiviral potency. This work not only identifies ERRα as a critical negative regulator of antiviral signaling, but also provides a potential target for future antiviral therapy.
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Affiliation(s)
- Xiang He
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Biotechnology, Beijing, P.R. China
| | - Shengli Ma
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Biotechnology, Beijing, P.R. China
| | - Yinyin Tian
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Biotechnology, Beijing, P.R. China
- Institute of Healthy Science, Anhui University, Hefei, Anhui, P.R. China
| | - Congwen Wei
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Biotechnology, Beijing, P.R. China
| | - Yongjie Zhu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Biotechnology, Beijing, P.R. China
- Institute of Healthy Science, Anhui University, Hefei, Anhui, P.R. China
| | - Feng Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Biotechnology, Beijing, P.R. China
- Institute of Healthy Science, Anhui University, Hefei, Anhui, P.R. China
| | - Pingping Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Biotechnology, Beijing, P.R. China
| | - Penghao Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Biotechnology, Beijing, P.R. China
| | - Yanhong Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Biotechnology, Beijing, P.R. China
| | - Hui Zhong
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Biotechnology, Beijing, P.R. China
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14
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Abstract
Bone loss is naturally occurring in aging males and females and exacerbated in the latter after menopause, altogether leading to cumulative skeleton fragility and increased fracture risk. Two types of therapeutic strategies can be envisioned to counteract age- or menopause-associated bone loss, aiming at either reducing bone resorption exerted by osteoclasts or, alternatively, promoting bone formation by osteoblasts. We here summarize data suggesting that inhibition of the Estrogen-Related Receptors α and/or γ could promote bone formation and compensate for bone loss induced by ageing or estrogen-deficiency.
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Affiliation(s)
- Julie Carnesecchi
- Institut de Génomique Fonctionnelle de Lyon, Université de Lyon, Université Lyon I, CNRS UMR5242, Ecole Normale Supérieure de Lyon, Lyon, France
| | - Jean-Marc Vanacker
- Institut de Génomique Fonctionnelle de Lyon, Université de Lyon, Université Lyon I, CNRS UMR5242, Ecole Normale Supérieure de Lyon, Lyon, France.
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15
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Zhang L, Wong J, Vanacker JM. The estrogen-related receptors (ERRs): potential targets against bone loss. Cell Mol Life Sci 2016; 73:3781-7. [DOI: 10.1007/s00018-016-2328-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 08/04/2016] [Indexed: 01/20/2023]
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16
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Abstract
Osteoclasts are bone-resorbing cells essential for skeletal remodeling and regeneration. However, excessive osteoclasts often contribute to prevalent bone degenerative diseases such as osteoporosis, arthritis, and cancer bone metastasis. Osteoclast dysregulation is also associated with rare disorders such as osteopetrosis, pycnodysostosis, Paget's disease, and Gorham-Stout syndrome. The nuclear receptor (NR) family of transcription factors functions as metabolic sensors that control a variety of physiological processes including skeletal homeostasis and serves as attractive therapeutic targets for many diseases. In this review, we highlight recent findings on the new players and the new mechanisms for how NRs regulate osteoclast differentiation and bone resorption. An enhanced understanding of NR functions in osteoclastogenesis will facilitate the development of not only novel osteoprotective medicine but also prudent strategies to minimize the adverse skeletal effects of certain NR-targeting drugs for a better treatment of cancer and metabolic diseases.
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Affiliation(s)
- Zixue Jin
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, Texas 75390
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17
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Linder S, Wiesner C. Tools of the trade: podosomes as multipurpose organelles of monocytic cells. Cell Mol Life Sci 2014; 72:121-35. [PMID: 25300510 DOI: 10.1007/s00018-014-1731-z] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 09/03/2014] [Accepted: 09/08/2014] [Indexed: 01/07/2023]
Abstract
Podosomes are adhesion and invasion structures that are particularly prominent in cells of the monocytic lineage such as macrophages, dendritic cells, and osteoclasts. They are multifunctional organelles that combine several key abilities required for cell migration and invasion. The podosome repertoire includes well-established functions such as cell-substrate adhesion, and extracellular matrix degradation, recently discovered abilities such as rigidity and topology sensing as well as antigen sampling, and also more speculative functions such as cell protrusion stabilization and transmigration. Collectively, podosomes not only enable dynamic interactions of cells with their surroundings, they also gather information about the pericellular environment, and are actively involved in its reshaping. This review presents an overview of the current knowledge on podosome composition, architecture, and regulation. We focus in particular on the growing list of podosome functions and discuss the specific properties of podosomes in macrophages, dendritic cells, and osteoclasts. Moreover, this article highlights podosome-related intracellular transport processes, the formation of podosomes in 3D environments as well as potentially podosome-associated diseases involving monocytic cells.
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Affiliation(s)
- Stefan Linder
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, Martinistr. 52, 20246, Hamburg, Germany,
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18
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Chen X, Cai C, Liu J, Wen L, Wang X, Ding Y. Impact of estrogen-related receptor α on the biological characteristics of rat mandibular condylar chondrocytes. Mol Med Rep 2014; 10:195-202. [PMID: 24805131 DOI: 10.3892/mmr.2014.2210] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Accepted: 03/19/2014] [Indexed: 11/06/2022] Open
Abstract
It is well‑known that estrogen-related receptor α (ERRα) affects numerous metabolic pathways and biological functions in the body, although the function of ERRα in the mandibular condylar chondrocytes (MCCs) of the temporomandibular joint remains unclear. The aim of the present study was to investigate the effect of ERRα on the biological characteristics of MCCs in female rats. Immunofluorescent staining was used to observe the expression level and distribution of ERRα in MCCs and tissues. Quantitative polymerase chain reaction (qPCR) was performed to detect the impact of estrogen intervention on the biological characteristics of female rat MCCs and ERRα expression levels. Liposome transfection and XCT‑790 were used to overexpress and inhibit ERRα expression, respectively, and then qPCR was performed to detect changes in the biological characteristics of MCCs. ERRα expression was detected in the nucleus and cytoplasm of rat MCCs. 17‑β estradiol (E2) (10‑8 M) increased the mRNA and protein expression levels of ERRα, Sox9, GDF‑5 and aromatase during in vitro MCC cultivation. In addition, E2 affected MCC proliferation through the regulation of ERRα expression levels. Overexpression of ERRα positively regulated the mRNA and protein expression levels of Sox9 and GDF‑5, but did not exhibit a significant effect on the mRNA and protein expression levels of aromatase and Col2a1. In conclusion, ERRα exhibited an important regulatory role in the proliferation and differentiation of female Sprague‑Dawley rat MCCs in vitro through regulating Sox9 and GDF-5.
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Affiliation(s)
- Xin Chen
- Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Chuan Cai
- Institute of Stomatology, Chinese PLA General Hospital, Beijing 100853, P.R. China
| | - Jing Liu
- Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Li Wen
- Institute of Stomatology, Chinese PLA General Hospital, Beijing 100853, P.R. China
| | - Xi Wang
- Department of Orthodontics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, P.R. China
| | - Yin Ding
- Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
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Cardelli M, Zirngibl RA, Boetto JF, McKenzie KP, Troy TC, Turksen K, Aubin JE. Cartilage-specific overexpression of ERRγ results in Chondrodysplasia and reduced chondrocyte proliferation. PLoS One 2013; 8:e81511. [PMID: 24349082 DOI: 10.1371/journal.pone.0081511] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Accepted: 10/14/2013] [Indexed: 12/25/2022] Open
Abstract
While the role of estrogen receptor-related receptor alpha (ERRα) in chondrogenesis has been investigated, the involvement of ERR gamma (ERRγ) has not been determined. To assess the effect of increased ERRγ activity on cartilage development in vivo, we generated two transgenic (Tg) lines overexpressing ERRγ2 via a chondrocyte-specific promoter; the two lines exhibited ∼3 and ∼5 fold increased ERRγ2 protein expression respectively in E14.5 Tg versus wild type (WT) limbs. On postnatal day seven (P7), we observed a 4–10% reduction in the size of the craniofacial, axial and appendicular skeletons in Tg versus WT mice. The reduction in bone length was already present at birth and did not appear to involve bones that are derived via intramembranous bone formation as the bones of the calvaria, clavicle, and the mandible developed normally. Histological analysis of P7 growth plates revealed a reduction in the length of the Tg versus WT growth plate, the majority of which was attributable to a reduced proliferative zone. The reduced proliferative zone paralleled a decrease in the number of Ki67-positive proliferating cells, with no significant change in apoptosis, and was accompanied by large cell-free swaths of cartilage matrix, which extended through multiple zones of the growth plate. Using a bioinformatics approach, we identified known chondrogenesis-associated genes with at least one predicted ERR binding site in their proximal promoters, as well as cell cycle regulators known to be regulated by ERRγ. Of the genes identified, Col2al, Agg, Pth1r, and Cdkn1b (p27) were significantly upregulated, suggesting that ERRγ2 negatively regulates chondrocyte proliferation and positively regulates matrix synthesis to coordinate growth plate height and organization.
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20
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Boudjadi S, Bernatchez G, Beaulieu JF, Carrier JC. Control of the human osteopontin promoter by ERRα in colorectal cancer. Am J Pathol 2013; 183:266-76. [PMID: 23680656 DOI: 10.1016/j.ajpath.2013.03.021] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Revised: 02/24/2013] [Accepted: 03/07/2013] [Indexed: 12/19/2022]
Abstract
Colorectal cancer is the second leading cause of death from cancer. Osteopontin (OPN) is a component of tumor extracellular matrix identified as a key marker of cancer progression. The estrogen-related receptor α (ERRα) has been implicated in endocrine-related cancer development and progression, possibly through modulation of cellular energy metabolism. Previous reports that ERRα regulates OPN expression in bone prompted us to investigate whether ERRα controls OPN expression in human colorectal cancer. Using a tissue microarray containing 83 tumor-normal tissue pairs of colorectal cancer samples, we found that tumor epithelial cells displayed higher staining for ERRα than normal mucosa, in correlation with elevated OPN expression. In addition, knocking down endogenous ERRα led to reduced OPN expression in HT29 colon cancer cells. Promoter analysis, inhibition of ERRα activity, and expression and mutation of potential ERRα response elements in the proximal promoter of human OPN showed that ERRα and its obligate co-activator, peroxisome proliferator-activated receptor γ co-activator-1 α, positively control human OPN promoter activity. Furthermore, chromatin immunoprecipitation experiments confirmed in vivo occupancy of the OPN promoter by ERRα in HT29 cells, suggesting that OPN is a direct target of ERRα in colorectal cancer. These findings suggest an additional mechanism by which ERRα participates in the development and progression of colorectal cancer, further supporting the relevance of targeting ERRα with antagonists as anticancer agents.
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Affiliation(s)
- Salah Boudjadi
- Department of Medicine, Faculty of Medicine and Sciences of Health, University of Sherbrooke, Sherbrooke, Quebec, Canada
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21
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Cai C, Yuan GJ, Huang Y, Yang N, Chen X, Wen L, Wang X, Zhang L, Ding Y. Estrogen-related receptor α is involved in the osteogenic differentiation of mesenchymal stem cells isolated from human periodontal ligaments. Int J Mol Med 2013; 31:1195-201. [PMID: 23525223 DOI: 10.3892/ijmm.2013.1305] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Accepted: 02/25/2013] [Indexed: 11/06/2022] Open
Abstract
Recently, it has been reported that the orphan nuclear receptor estrogen-related receptor α (ERRα) is involved in the osteogenic differentiation of mesenchymal stem cells (MSCs). Moreover, ERRα has been identified as a novel therapeutic target for treating osteoporosis and other bone diseases. Human periodontal ligament tissue-derived mesenchymal stem cells (hPDLSCs) have recently been used in stem cell-mediated therapies because of their multipotency, particularly toward osteogenic differentiation. However, it is still unclear whether ERRα can regulate the osteogenic differentiation of hPDLSCs. In the present study, we investigated the role of ERRα in the osteogenic differentiation of hPDLSCs in vitro. We isolated hPDLSCs and confirmed their capacity for multipotent differentiation. Furthermore, we examined ERRα expression in hPDLSCs by RT-PCR and immunocytochemistry. We found that the expression of ERRα mRNA was significantly increased during the late stage of osteogenic differentiation of hPDLSCs. Moreover, transfection of recombinant lentiviral-mediated miRNA targeting ERRα significantly suppressed ALP activity, mineralization capacity, and the mRNA expression of osteogenesis-related genes (ALP, OCN, RUNX2 and OPN) in hPDLSCs. Our results indicate that ERRα may promote the osteogenic differentiation of hPDLSCs in vitro.
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Affiliation(s)
- Chuan Cai
- Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, P.R. China
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22
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Bonnelye E, Aubin JE. An energetic orphan in an endocrine tissue: a revised perspective of the function of estrogen receptor-related receptor alpha in bone and cartilage. J Bone Miner Res 2013; 28:225-33. [PMID: 23212690 DOI: 10.1002/jbmr.1836] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 11/09/2012] [Accepted: 11/14/2012] [Indexed: 01/07/2023]
Abstract
Estrogen receptor-related receptor alpha (ERRα) is an orphan nuclear receptor with sequence homology to the estrogen receptors, ERα/β, but it does not bind estrogen. ERRα not only plays a functional role in osteoblasts but also in osteoclasts and chondrocytes. In addition, the ERRs, including ERRα, can be activated by coactivators such as peroxisome proliferator-activated receptor-gamma coactivator-1 (PGC1α and β) and are implicated in adipogenesis, fatty acid oxidation, and oxidative stress defense, suggesting that ERRα-through its activity in bone resorption and adipogenesis--may regulate the insulin and leptin pathways and contribute to aging-related changes in bone and cartilage. In this review, we discuss data on ERRα and its cellular and molecular modes of action, which have broad implications for considering the potential role of this orphan receptor in cartilage and bone endocrine function, on whole-organism physiology, and in the bone aging process.
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23
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Wang Y, Grainger DW. RNA therapeutics targeting osteoclast-mediated excessive bone resorption. Adv Drug Deliv Rev 2012; 64:1341-57. [PMID: 21945356 DOI: 10.1016/j.addr.2011.09.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2011] [Accepted: 09/05/2011] [Indexed: 01/13/2023]
Abstract
RNA interference (RNAi) is a sequence-specific post-transcriptional gene silencing technique developed with dramatically increasing utility for both scientific and therapeutic purposes. Short interfering RNA (siRNA) is currently exploited to regulate protein expression relevant to many therapeutic applications, and commonly used as a tool for elucidating disease-associated genes. Osteoporosis and their associated osteoporotic fragility fractures in both men and women are rapidly becoming a global healthcare crisis as average life expectancy increases worldwide. New therapeutics are needed for this increasing patient population. This review describes the diversity of molecular targets suitable for RNAi-based gene knock down in osteoclasts to control osteoclast-mediated excessive bone resorption. We identify strategies for developing targeted siRNA delivery and efficient gene silencing, and describe opportunities and challenges of introducing siRNA as a therapeutic approach to hard and connective tissue disorders.
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Abstract
Coordinated and tight regulation of gene expression in metazoans is essential for cellular homeostasis and functions. Tissue- and cell-specific regulatory factors are indispensable and a wide variety of them exist to regulate genes. A family of transcriptional factors was identified in the past two decades through gene cloning studies and was informally referred as "orphan receptors", as appropriate endogenous ligands for such receptors were unknown. One of the subclasses of such receptors is known as the estrogen-related receptors (ERRs), which include three isoforms, namely ERRα, ERRβ and ERRγ. Over the past one decade, unprecedented knowledge about the ERRs biology has been generated, indicating their vital roles in various metabolic and physiological activities in animals. The ERRs cellular action is largely attributed to its interaction with a wide variety of other nuclear receptors, including some orphan nuclear receptors, and thereby can modulate diverse array of genes involved in metabolism and animal physiology. Studies using genome-wide location analyses, microarray and functional genomics, including ERR-specific null mice have revealed a number of pathways controlled by the ERRs. In this context, new and recent information on the biological functions of ERRs are being reviewed.
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Affiliation(s)
- Harmit S Ranhotra
- Department of Biochemistry, Orphan Nuclear Receptors Laboratory, St. Edmund's College, Shillong, India.
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25
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Fradet A, Sorel H, Bouazza L, Goehrig D, Dépalle B, Bellahcène A, Castronovo V, Follet H, Descotes F, Aubin JE, Clézardin P, Bonnelye E. Dual function of ERRα in breast cancer and bone metastasis formation: implication of VEGF and osteoprotegerin. Cancer Res 2011; 71:5728-38. [PMID: 21734015 DOI: 10.1158/0008-5472.can-11-1431] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Bone metastasis is a complication occurring in up to 70% of advanced breast cancer patients. The estrogen receptor-related receptor alpha (ERRα) has been implicated in breast cancer and bone development, prompting us to examine whether ERRα may function in promoting the osteolytic growth of breast cancer cells in bone. In a mouse xenograft model of metastatic human breast cancer, overexpression of wild-type ERRα reduced metastasis, whereas overexpression of a dominant negative mutant promoted metastasis. Osteoclasts were directly affected and ERRα upregulated the osteoclastogenesis inhibitor, osteoprotegerin (OPG), providing a direct mechanistic basis for understanding how ERRα reduced breast cancer cell growth in bone. In contrast, ERRα overexpression increased breast cancer cell growth in the mammary gland. ERRα-overexpressing primary tumors were highly vascularized, consistent with an observed upregulation of angiogenic growth factor, the VEGF. In support of these findings, we documented that elevated expression of ERRα mRNA in breast carcinomas was associated with high expression of OPG and VEGF and with disease progression. In conclusion, our results show that ERRα plays a dual role in breast cancer progression in promoting the local growth of tumor cells, but decreasing metastatic growth of osteolytic lesions in bone.
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