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Roy M, Mbous Nguimbus L, Badiane PY, Goguen-Couture V, Degrandmaison J, Parent JL, Brunet MA, Roux S. Galectin-8 modulates human osteoclast activity partly through isoform-specific interactions. Life Sci Alliance 2024; 7:e202302348. [PMID: 38395460 PMCID: PMC10895193 DOI: 10.26508/lsa.202302348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 02/12/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024] Open
Abstract
In overactive human osteoclasts, we previously identified an alternative splicing event in LGALS8, encoding galectin-8, resulting in decreased expression of the long isoform. Galectin-8, which modulates cell-matrix interactions and functions intracellularly as a danger recognition receptor, has never been associated with osteoclast biology. In human osteoclasts, inhibition of galectin-8 expression revealed its roles in bone resorption, osteoclast nuclearity, and mTORC1 signaling regulation. Galectin-8 isoform-specific inhibition asserted a predominant role for the short isoform in bone resorption. Moreover, a liquid chromatography with tandem mass spectrometry (LC-MS/MS) proteomic analysis of galectin-8 isoforms performed in HEK293T cells identified 22 proteins shared by both isoforms. Meanwhile, nine interacting partners were specific for the short isoform, and none were unique to the long isoform. Interactors specific for the galectin-8 short isoform included cell adhesion proteins and lysosomal proteins. We confirmed the interactions of galectin-8 with CLCN3, CLCN7, LAMP1, and LAMP2, all known to localize to secretory vesicles, in human osteoclasts. Altogether, our study reveals direct roles of galectin-8 in osteoclast activity, mostly attributable to the short isoform.
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Affiliation(s)
- Michèle Roy
- https://ror.org/00kybxq39 Division of Rheumatology, Department of Medicine, Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, Canada
| | - Léopold Mbous Nguimbus
- https://ror.org/00kybxq39 Division of Rheumatology, Department of Medicine, Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, Canada
| | - Papa Yaya Badiane
- https://ror.org/00kybxq39 Division of Rheumatology, Department of Medicine, Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, Canada
| | - Victor Goguen-Couture
- https://ror.org/00kybxq39 Division of Rheumatology, Department of Medicine, Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, Canada
| | - Jade Degrandmaison
- https://ror.org/00kybxq39 Division of Rheumatology, Department of Medicine, Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, Canada
| | - Jean-Luc Parent
- https://ror.org/00kybxq39 Division of Rheumatology, Department of Medicine, Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, Canada
| | - Marie A Brunet
- https://ror.org/00kybxq39 Department of Paediatrics, Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, Canada
| | - Sophie Roux
- https://ror.org/00kybxq39 Division of Rheumatology, Department of Medicine, Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, Canada
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Tenshin H, Delgado-Calle J, Windle JJ, Roodman GD, Chirgwin JM, Kurihara N. Osteocytes and Paget's Disease of Bone. Curr Osteoporos Rep 2024; 22:266-272. [PMID: 38457001 PMCID: PMC11060996 DOI: 10.1007/s11914-024-00863-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/09/2024] [Indexed: 03/09/2024]
Abstract
PURPOSE OF REVIEW To describe the contributions of osteocytes to the lesions in Paget's disease, which are characterized by locally overactive bone resorption and formation. RECENT FINDINGS Osteocytes, the most abundant cells in bone, are altered in Paget's disease lesions, displaying increased size, decreased canalicular length, incomplete differentiation, and less sclerostin expression compared to controls in both patients and mouse models. Pagetic lesions show increased senescent osteocytes that express RANK ligand, which drives osteoclastic bone resorption. Abnormal osteoclasts in Paget's disease secrete abundant IGF1, which enhances osteocyte senescence, contributing to lesion formation. Recent data suggest that osteocytes contribute to lesion formation in Paget's disease by responding to high local IGF1 released from abnormal osteoclasts. Here we describe the characteristics of osteocytes in Paget's disease and their role in bone lesion formation based on recent results with mouse models and supported by patient data.
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Affiliation(s)
- Hirofumi Tenshin
- Division of Hematology and Oncology, Department of Medicine, Indiana University, Indianapolis, IN, USA
| | - Jesus Delgado-Calle
- Department of Physiology and Cell Biology, Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Jolene J Windle
- Department of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, VA, USA
| | - G David Roodman
- Division of Hematology and Oncology, Department of Medicine, Indiana University, Indianapolis, IN, USA
| | - John M Chirgwin
- Division of Hematology and Oncology, Department of Medicine, Indiana University, Indianapolis, IN, USA
- Research Service, Roudebush Veterans Administration Medical Center, Indianapolis, IN, USA
| | - Noriyoshi Kurihara
- Division of Hematology and Oncology, Department of Medicine, Indiana University, Indianapolis, IN, USA.
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Michou L, Gamache P, Guertin JR, Tarride JE, Brown JP, Jean S. Prevalence and incidence of Paget's disease of bone: Temporal trend over 20 years in the province of Quebec, Canada. Bone 2023; 176:116895. [PMID: 37683713 DOI: 10.1016/j.bone.2023.116895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 08/28/2023] [Accepted: 09/05/2023] [Indexed: 09/10/2023]
Abstract
BACKGROUND Paget's disease of bone (PDB) is a focal bone disorder characterized by an increased bone remodeling and an anarchic bone structure. A decline of prevalence and incidence of PDB has been observed in some countries. No epidemiological data are available on PDB in Canada. AIMS We aimed at examining the evolution of the prevalence and incidence of PDB in Quebec (Canada) by analyzing health administrative databases. METHODS PDB case definition relied on one or more hospitalizations, or one or more physician-billing claims with a diagnosis code of PDB. To identify incident cases, a 'run-in' period of four years (1996-1999) was used to exclude prevalent cases. For each fiscal year from 2000 to 2001 to 2019-2020 (population size 2,914,480), crude age and sex-specific prevalence and incidence rates of PDB among individuals aged ≥55 years were determined, and sex-specific rates were also standardized to the 2011 age structure of the Quebec population. Generalized linear regressions were used to test for linear changes in standardized prevalence and incidence rates. RESULTS Over the study period, standardized prevalence of PDB has remained stable in Quebec, from 0.44 % in 2000/2001 to 0.43 % in 2019/2020 (mean change -0.002, p-value = 0.0935). For the 2019-2020 fiscal year, 13,165 men and women had been diagnosed with PDB and prevalence of PDB increased with age. Standardized incidence of PDB has decreased over time from 0.77/1000 in 2000/2001 to 0.28/1000 in 2019-2020 (mean change -0.228/year, p-value<0.0001), the incidence decreasing from 0.82/1000 to 0.37/1000 in men and from 0.76/1000 to 0.22/1000 in women, respectively. This decrease was observed in all age categories. CONCLUSION With the exception of a slight increase in PDB prevalence up to 0.55 % in years 2005 to 2007, the prevalence of PDB has remained stable in Quebec over the past 20 years, 13,160 men and women being currently diagnosed with PDB. The incidence has decreased over time. Our results support the epidemiological changes of PDB reported in other countries.
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Affiliation(s)
- Laetitia Michou
- CHU de Québec-Université Laval Research Centre, Quebec, Quebec, Canada; Department of Medicine, Université Laval, Quebec, Quebec, Canada.
| | - Philippe Gamache
- Institut national de santé publique du Québec, Quebec, Quebec, Canada
| | - Jason R Guertin
- CHU de Québec-Université Laval Research Centre, Quebec, Quebec, Canada; Department of preventive and social medicine, Université Laval, Quebec, Quebec, Canada
| | - Jean-Eric Tarride
- Department of Health Research Methods, Evidence and Impact, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Jacques P Brown
- CHU de Québec-Université Laval Research Centre, Quebec, Quebec, Canada; Department of Medicine, Université Laval, Quebec, Quebec, Canada
| | - Sonia Jean
- Institut national de santé publique du Québec, Quebec, Quebec, Canada; Department of preventive and social medicine, Université Laval, Quebec, Quebec, Canada
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Yao H, Du Y, Jiang B, Liao Y, Zhao Y, Yin M, Li T, Sheng Y, Ji Y, Du M. Sulforaphene suppresses RANKL-induced osteoclastogenesis and LPS-induced bone erosion by activating Nrf2 signaling pathway. Free Radic Biol Med 2023; 207:48-62. [PMID: 37423561 DOI: 10.1016/j.freeradbiomed.2023.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/04/2023] [Accepted: 07/06/2023] [Indexed: 07/11/2023]
Abstract
BACKGROUND AND PURPOSE Inflammatory disorders have been found to induce bone loss through sustained and persistent activation of osteoclast differentiation, leading to heightened bone resorption. The current pharmacological interventions for combating bone loss to harbor adverse effects or contraindications. There is a pressing need to identify drugs with fewer side effects. EXPERIMENTAL APPROACH The effect and underlying mechanism of sulforaphene (LFS) on osteoclast differentiation were illustrated in vitro and in vivo with RANKL-induced Raw264.7 cell line osteoclastogenesis and lipopolysaccharide (LPS)-induced bone erosion model. KEY RESULTS In this study, LFS has been shown to effectively impede the formation of mature osteoclasts induced from both Raw264.7 cell line and bone marrow macrophages (BMMs), mainly at the early stage. Further mechanistic investigations uncovered that LFS suppressed AKT phosphorylation. SC-79, a potent AKT activator, was found to reverse the inhibitory impact of LFS on osteoclast differentiation. Moreover, transcriptome sequencing analysis revealed that treatment with LFS led to a significant upregulation in the expression of nuclear factor erythroid 2-related factor 2 (Nrf2) and antioxidant-related genes. Then it's validated that LFS could promote NRF2 expression and nuclear translocation, as well as effectively resist oxidative stress. NRF2 knockdown reversed the suppression effect of LFS on osteoclast differentiation. In vivo experiments provide convincing evidence that LFS is protective against LPS-induced inflammatory osteolysis. CONCLUSION AND IMPLICATIONS These well-grounded and promising findings suggest LFS as a promising agent to addressing oxidative-stress related diseases and bone loss disorders.
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Affiliation(s)
- Hantao Yao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yangge Du
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Bulin Jiang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yilin Liao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yaoyu Zhao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Mengjie Yin
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Ting Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yue Sheng
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yaoting Ji
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.
| | - Minquan Du
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.
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You Y, Simonyan D, Bureau A, Gagnon E, Albert C, Guertin JR, Tarride JE, Brown JP, Michou L. Molecular test of Paget's disease of bone in families not linked to SQSTM1 gene mutations. Bone Rep 2023; 18:101670. [PMID: 36915391 PMCID: PMC10006713 DOI: 10.1016/j.bonr.2023.101670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 02/26/2023] [Indexed: 03/05/2023] Open
Abstract
Purpose Paget's disease of bone (PDB) is a focal metabolic bone disorder characterized by an increased bone remodeling. Fifteen to 40 % of PDB patients have a familial form with an autosomal dominant inheritance. Disease-causing mutations of the SQSTM1 gene have been linked to PDB in about 40 % of families whereas genes linked to the remaining families are unknown. Several single nucleotide polymorphisms (SNPs) have been associated with PDB in unrelated patient non-carriers of a SQSTM1 mutation. The current clinical practice guidelines still recommend the measure of serum total alkaline phosphatase (sALP) for PDB screening. In unrelated individual non-carriers of SQSTM1 mutations, we previously developed a genetic test combining male sex with five genetic markers (rs499345, rs5742915, rs2458413, rs3018362, rs2234968), giving rise to an area under the curve (AUC) for PDB phenotype of 0.73 (0.69; 0.77). A combination of male sex with total calcium corrected for albumin and Procollagen type I N-terminal propeptide (P1NP), had an AUC of 0.82 (0.73; 0.92). Combining both genetic and biochemical tests increased the AUC to 0.89 (0.83; 0.95). Objective This study aimed at estimating the performance of our previous test of PDB, in families not linked to SQSTM1 mutations with disease-causing genes yet unknown, and at developing a new algorithm if the performance is not satisfactory. Methods We genotyped the five SNPs cited above, and measured calcium corrected for albumin and P1NP in 181 relatives, with PDB or not, from 19 PDB families not linked to SQSTM1 mutations. Bivariate and multivariate logistic regression models including male sex were fitted to search for a molecular test that could best detect PDB in these families. A receiving operating characteristics analysis was done to establish a cut-off point for continuous variables. Results Logistic regression estimates of our previous molecular test gave rise to a high sensitivity of 78 %, 97 % and 88 % for the genetic, biochemical, and combined test but the specificity was very low, 35 %, 11 % and 21 %, respectively. This poor specificity persisted even when the cut-off point was changed. We then generated in these families, new logistic regression estimates but on the same parameters as mentioned above, giving rise to an AUC of 0.65 (0.55; 0.75) for the genetic test, of 0.84 (0.74; 0.94) for the biochemical test, and 0.89 (0.82; 0.96) for the combination test, the latter having a sensitivity of 96 % and specificity of 57 %. By comparison serum P1NP alone gave rise to an AUC of 0.84 (0.73; 0.94), with a sensitivity of 71 % and a specificity of 79 %. Conclusion In PDB families not linked to SQSTM1 mutations, the estimates of our previous molecular test gave rise to a poor specificity. Using new estimates, the biochemical and combined tests have similar predictive abilities than our former test. Serum P1NP is a bone marker of interest for the screening for PDB in families not linked to SQSTM1 mutations.
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Affiliation(s)
- Yang You
- CHU de Québec-Université Laval Research Centre, Québec, QC, Canada.,Division of Rheumatology, Department of Medicine, Université Laval, Québec, QC, Canada
| | - David Simonyan
- CHU de Québec-Université Laval Research Centre, Québec, QC, Canada
| | - Alexandre Bureau
- Département de médecine sociale et préventive, Université Laval, Québec, QC, Canada.,Centre de recherche du Centre intégré universitaire de santé et de services sociaux de la Capitale-Nationale, Québec, QC, Canada
| | - Edith Gagnon
- CHU de Québec-Université Laval Research Centre, Québec, QC, Canada
| | | | - Jason R Guertin
- CHU de Québec-Université Laval Research Centre, Québec, QC, Canada.,Département de médecine sociale et préventive, Université Laval, Québec, QC, Canada
| | - Jean-Eric Tarride
- Department of Health Research Methods, Evidence and Impact, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Jacques P Brown
- CHU de Québec-Université Laval Research Centre, Québec, QC, Canada.,Division of Rheumatology, Department of Medicine, Université Laval, Québec, QC, Canada
| | - Laëtitia Michou
- CHU de Québec-Université Laval Research Centre, Québec, QC, Canada.,Division of Rheumatology, Department of Medicine, Université Laval, Québec, QC, Canada.,Department of Rheumatology, CHU de Québec-Université Laval, Québec, QC, Canada
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6
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Anwar A, Sapra L, Gupta N, Ojha RP, Verma B, Srivastava RK. Fine-tuning osteoclastogenesis: An insight into the cellular and molecular regulation of osteoclastogenesis. J Cell Physiol 2023. [PMID: 37183350 DOI: 10.1002/jcp.31036] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 04/21/2023] [Accepted: 04/25/2023] [Indexed: 05/16/2023]
Abstract
Osteoclasts, the bone-resorbing cells, are essential for the bone remodeling process and are involved in the pathophysiology of several bone-related diseases. The extensive corpus of in vitro research and crucial mouse model studies in the 1990s demonstrated the key roles of monocyte/macrophage colony-stimulating factor, receptor activator of nuclear factor kappa B ligand (RANKL) and integrin αvβ3 in osteoclast biology. Our knowledge of the molecular mechanisms by which these variables control osteoclast differentiation and function has significantly advanced in the first decade of this century. Recent developments have revealed a number of novel insights into the fundamental mechanisms governing the differentiation and functional activity of osteoclasts; however, these mechanisms have not yet been adequately documented. Thus, in the present review, we discuss various regulatory factors including local and hormonal factors, innate as well as adaptive immune cells, noncoding RNAs (ncRNAs), etc., in the molecular regulation of the intricate and tightly regulated process of osteoclastogenesis. ncRNAs have a critical role as epigenetic controllers of osteoclast physiologic activities, including differentiation and bone resorption. The primary ncRNAs, which include micro-RNAs, circular RNAs, and long noncoding RNAs, form a complex network that affects gene transcription activities associated with osteoclast biological activity. Greater knowledge of the involvement of ncRNAs in osteoclast biological activities will contribute to the treatment and management of several skeletal diseases such as osteoporosis, osteoarthritis, rheumatoid arthritis, etc. Moreover, we further outline potential therapies targeting these regulatory pathways of osteoclastogenesis in distinct bone pathologies.
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Affiliation(s)
- Aleena Anwar
- Translational Immunology, Osteoimmunology & Immunoporosis Lab (TIOIL), Department of Biotechnology, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Leena Sapra
- Translational Immunology, Osteoimmunology & Immunoporosis Lab (TIOIL), Department of Biotechnology, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Navita Gupta
- Department of Allied Health Sciences, Chitkara School of Health Sciences, Chitkara University, Chandigarh, Punjab, India
| | - Rudra P Ojha
- Department of Zoology, Nehru Gram Bharati University, Prayagraj, Uttar Pradesh, India
| | - Bhupendra Verma
- Translational Immunology, Osteoimmunology & Immunoporosis Lab (TIOIL), Department of Biotechnology, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Rupesh K Srivastava
- Translational Immunology, Osteoimmunology & Immunoporosis Lab (TIOIL), Department of Biotechnology, All India Institute of Medical Sciences (AIIMS), New Delhi, India
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Banaganapalli B, Fallatah I, Alsubhi F, Shetty PJ, Awan Z, Elango R, Shaik NA. Paget's disease: a review of the epidemiology, etiology, genetics, and treatment. Front Genet 2023; 14:1131182. [PMID: 37180975 PMCID: PMC10169728 DOI: 10.3389/fgene.2023.1131182] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Accepted: 04/17/2023] [Indexed: 05/16/2023] Open
Abstract
Paget's disease of bone (PDB) is the second most prevalent metabolic bone disorder worldwide, with a prevalence rate of 1.5%-8.3%. It is characterized by localized areas of accelerated, disorganized, and excessive bone production and turnover. Typically, PDB develops in the later stages of life, particularly in the late 50s, and affects men more frequently than women. PDB is a complex disease influenced by both genetic and environmental factors. PDB has a complex genetic basis involving multiple genes, with SQSTM1 being the gene most frequently associated with its development. Mutations affecting the UBA domain of SQSTM1 have been detected in both familial and sporadic PDB cases, and these mutations are often associated with severe clinical expression. Germline mutations in other genes such as TNFRSF11A, ZNF687 and PFN1, have also been associated with the development of the disease. Genetic association studies have also uncovered several PDB predisposing risk genes contributing to the disease pathology and severity. Epigenetic modifications of genes involved in bone remodelling and regulation, including RANKL, OPG, HDAC2, DNMT1, and SQSTM1, have been implicated in the development and progression of Paget's disease of bone, providing insight into the molecular basis of the disease and potential targets for therapeutic intervention. Although PDB has a tendency to cluster within families, the variable severity of the disease across family members, coupled with decreasing incidence rates, indicates that environmental factors may also play a role in the pathophysiology of PDB. The precise nature of these environmental triggers and how they interact with genetic determinants remain poorly understood. Fortunately, majority of PDB patients can achieve long-term remission with an intravenous infusion of aminobisphosphonates, such as zoledronic acid. In this review, we discuss aspects like clinical characteristics, genetic foundation, and latest updates in PDB research.
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Affiliation(s)
- Babajan Banaganapalli
- Department of Genetic Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
- Princess Al-Jawhara Al-Brahim Center of Excellence in Research of Hereditary Disorders, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ibrahim Fallatah
- Department of Genetic Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Fai Alsubhi
- Department of Genetic Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Preetha Jayasheela Shetty
- Department of Biomedical Sciences, College of Medicine, Gulf Medical University, Ajman, United Arab Emirates
| | - Zuhier Awan
- Department of Clinical Biochemistry, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ramu Elango
- Department of Genetic Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
- Princess Al-Jawhara Al-Brahim Center of Excellence in Research of Hereditary Disorders, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Noor Ahmad Shaik
- Department of Genetic Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
- Princess Al-Jawhara Al-Brahim Center of Excellence in Research of Hereditary Disorders, King Abdulaziz University, Jeddah, Saudi Arabia
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8
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Rabjohns EM, Rampersad RR, Ghosh A, Hurst K, Eudy AM, Brozowski JM, Lee HH, Ren Y, Mirando A, Gladman J, Bowser JL, Berg K, Wani S, Ralston SH, Hilton MJ, Tarrant TK. Aged G Protein-Coupled Receptor Kinase 3 (Grk3)-Deficient Mice Exhibit Enhanced Osteoclastogenesis and Develop Bone Lesions Analogous to Human Paget's Disease of Bone. Cells 2023; 12:981. [PMID: 37048054 PMCID: PMC10093054 DOI: 10.3390/cells12070981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/03/2023] [Accepted: 03/08/2023] [Indexed: 03/29/2023] Open
Abstract
Paget's Disease of Bone (PDB) is a metabolic bone disease that is characterized by dysregulated osteoclast function leading to focal abnormalities of bone remodeling. It can lead to pain, fracture, and bone deformity. G protein-coupled receptor kinase 3 (GRK3) is an important negative regulator of G protein-coupled receptor (GPCR) signaling. GRK3 is known to regulate GPCR function in osteoblasts and preosteoblasts, but its regulatory function in osteoclasts is not well defined. Here, we report that Grk3 expression increases during osteoclast differentiation in both human and mouse primary cells and established cell lines. We also show that aged mice deficient in Grk3 develop bone lesions similar to those seen in human PDB and other Paget's Disease mouse models. We show that a deficiency in Grk3 expression enhances osteoclastogenesis in vitro and proliferation of hematopoietic osteoclast precursors in vivo but does not affect the osteoclast-mediated bone resorption function or cellular senescence pathway. Notably, we also observe decreased Grk3 expression in peripheral blood mononuclear cells of patients with PDB compared with age- and gender-matched healthy controls. Our data suggest that GRK3 has relevance to the regulation of osteoclast differentiation and that it may have relevance to the pathogenesis of PDB and other metabolic bone diseases associated with osteoclast activation.
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Affiliation(s)
- Emily M. Rabjohns
- Division of Rheumatology and Immunology, Duke University Department of Medicine, Durham, NC 27710, USA
- Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Rishi R. Rampersad
- Division of Rheumatology and Immunology, Duke University Department of Medicine, Durham, NC 27710, USA
| | - Arin Ghosh
- College of Arts and Sciences, Duke University, Durham, NC 27510, USA
| | - Katlyn Hurst
- College of Arts and Sciences, Duke University, Durham, NC 27510, USA
| | - Amanda M. Eudy
- Division of Rheumatology and Immunology, Duke University Department of Medicine, Durham, NC 27710, USA
| | - Jaime M. Brozowski
- Division of Rheumatology and Immunology, Duke University Department of Medicine, Durham, NC 27710, USA
| | - Hyun Ho Lee
- Division of Rheumatology and Immunology, Duke University Department of Medicine, Durham, NC 27710, USA
| | - Yinshi Ren
- Department of Orthopaedic Surgery, University of Texas Southwestern, Dallas, TX 75390, USA
- Scottish Rite Hospital, Dallas, TX 75219, USA
- Department of Orthopedics, Duke University, Durham, NC 27710, USA
| | - Anthony Mirando
- Department of Orthopedics, Duke University, Durham, NC 27710, USA
| | - Justin Gladman
- Pratt School of Engineering, Duke University, Durham, NC 27710, USA
| | - Jessica L. Bowser
- Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Kathryn Berg
- Centre for Genomic and Experimental Medicine, University of Edinburgh, Edinburgh EH4 2XU, UK
| | - Sachin Wani
- Centre for Genomic and Experimental Medicine, University of Edinburgh, Edinburgh EH4 2XU, UK
| | - Stuart H. Ralston
- Centre for Genomic and Experimental Medicine, University of Edinburgh, Edinburgh EH4 2XU, UK
| | | | - Teresa K. Tarrant
- Division of Rheumatology and Immunology, Duke University Department of Medicine, Durham, NC 27710, USA
- Durham Veterans Hospital, Durham, NC 27710, USA
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Klippel-Feil Syndrome: morphological findings in a 19th-century musealized skull from Viana del Bollo (Orense, Spain). ANTHROPOLOGICAL REVIEW 2022. [DOI: 10.18778/1898-6773.85.2.03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The aim of this study is to show the cranial alterations that Klippel-Feil syndrome produced in a case older than 200 years. Few paleopathological case studies diagnosed as Klippel-Feil Syndrome are focused on cranial abnormalities. A skull numbered 778, belonging to the Federico Olóriz Aguilera collection (Spain, 19th century AD), Universidad Complutense de Madrid, belonging to a young man born in a town in the North of Spain, was investigated. This cranium was visually inspected, hence macroscopically and paleoradiologically studied, using the images obtained through conventional radiology and CT scan imaging. In addition to the vertebral fusion between the atlas (C1) and the axis (C2), atlanto-occipital fusion, basilar impression, obliteration of the sagittal suture, enlarged parietal foramina and significant craniofacial asymmetry affecting maxillary bones, sphenoid, orbits, nasal bones and both palatines were observed. Morphological findings make it possible to diagnose a Klippel-Feil syndrome, possibly type-II, although the lack of the rest of the spinal column renders it impossible to verify other spinal anomalies. As a limitation, only the cranium and two cervical vertebrae were preserved, hence the possible involvement of the rest of the skeleton cannot be verified.
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Familial mediterranean fever and paget’s disease: incidental or associated? JOURNAL OF BASIC AND CLINICAL HEALTH SCIENCES 2022. [DOI: 10.30621/jbachs.1053935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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11
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Dessay M, Couture E, Maaroufi H, Fournier F, Gagnon E, Droit A, Brown JP, Michou L. Attenuated clinical and osteoclastic phenotypes of Paget's disease of bone linked to the p.Pro392Leu/SQSTM1 mutation by a rare variant in the DOCK6 gene. BMC Med Genomics 2022; 15:41. [PMID: 35241069 PMCID: PMC8895793 DOI: 10.1186/s12920-022-01198-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 02/24/2022] [Indexed: 11/23/2022] Open
Abstract
Background We identified two families with Paget's disease of bone (PDB) linked to the p.Pro392Leu mutation within the SQSTM1 gene displaying a possible digenism. This study aimed at identifying this second genetic variant cosegregating with the p.Pro392Leu mutation and at characterizing its impact on the clinical and cellular phenotypes of PDB. Methods Whole exome sequencing was performed in one patient per family and two healthy controls. We compared clinical characteristics of PDB in 14 relatives from the two families. The osteoclastic phenotype was compared in in vitro differentiated osteoclasts from 31 participants carrying the DOCK6 and/or SQSTM1 variants. Tridimensional models of SQSTM1 and DOCK6 proteins were generated to evaluate the impact of these variants on their stability and flexibility. Statistical analyses were performed with Graphpad prism. Results Whole-exome sequencing allowed us to identify the p.Val45Ile missense variant in the DOCK6 gene in patients. In both families, the mean age at PDB diagnosis was delayed in pagetic patients carrier of the p.Val45Ile variant alone compared to those carrying the p.Pro392Leu mutation alone (67 vs. 44 years, P = 0.03). Although both p.Val45Ile and p.Pro392Leu variants gave rise to a pagetic phenotype of osteoclast versus healthy controls, the p.Val45Ile variant was found to attenuate the severity of the osteoclastic phenotype of PDB caused by the p.Pro392Leu mutation when both variants were present. The DOCK6 mRNA expression was higher in carriers of the p.Val45Ile variant than in pagetic patients without any mutations and healthy controls. Structural bioinformatics analyses suggested that the p.Pro392Leu mutation might rigidify the UBA domain and thus decrease its possible intramolecular interaction with a novel domain, the serum response factor–transcription factor (SRF-TF)-like domain, whereas the p.Val45Ile variant may decrease SRF-TF-like activity. Conclusion The p.Val45Ile variant may attenuate the severity of the clinical phenotype of PDB in patient carriers of both variants. In vitro, the rare variant of the DOCK6 may have a modifier effect on the p.Pro392Leu mutation, possibly via its effect on the SRF-TF-like. Supplementary Information The online version contains supplementary material available at 10.1186/s12920-022-01198-9.
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Affiliation(s)
- Mariam Dessay
- CHU de Québec-Université Laval Research Centre, Quebec City, QC, Canada
| | - Emile Couture
- CHU de Québec-Université Laval Research Centre, Quebec City, QC, Canada
| | - Halim Maaroufi
- Institut de Biologie Intégrative Et Des Systèmes (IBIS), Université Laval, Quebec, QC, Canada
| | - Frédéric Fournier
- CHU de Québec-Université Laval Research Centre, Quebec City, QC, Canada
| | - Edith Gagnon
- CHU de Québec-Université Laval Research Centre, Quebec City, QC, Canada
| | - Arnaud Droit
- CHU de Québec-Université Laval Research Centre, Quebec City, QC, Canada
| | - Jacques P Brown
- CHU de Québec-Université Laval Research Centre, Quebec City, QC, Canada.,Department of Medicine, Université Laval, Quebec, QC, Canada
| | - Laëtitia Michou
- CHU de Québec-Université Laval Research Centre, Quebec City, QC, Canada. .,Department of Medicine, Université Laval, Quebec, QC, Canada. .,Department of Rheumatology-R4774, CHU de Québec-Université Laval, 2705 boulevard Laurier, Quebec, QC, G1V 4G2, Canada.
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12
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Oprea V, Bojincă V, Bălănescu AR, Tatu A, Bojincă M, Romila A. Paget's disease of bone and megaloblastic anemia in a 72‑year‑old patient: A case report and systematic literature review. Exp Ther Med 2022; 23:269. [PMID: 35251335 PMCID: PMC8892619 DOI: 10.3892/etm.2022.11195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 12/30/2021] [Indexed: 11/21/2022] Open
Abstract
Paget's disease of bone (PDB) is characterized by abnormal osteoclastic bone resorption with disorganized bone neo-formation, primarily affecting elderly (>55 years) patients. Although the majority of patients are asymptomatic, some patients may experience bone pain due to local periosteal involvement or osteoarthritic lesions in the spine; in addition, limb deformities may lead to secondary gait problems or degenerative joint changes. Anemia has an overall prevalence of 12-17% in elderly adults (>65 years old), with macrocytic anemia being the less common type. Megaloblastic anemia is a macrocytic anemia characterized by the presence of large, immature, nucleated cells (megaloblasts) in the blood, with the most common cause being a deficiency of folate and/or vitamin B12. We herein report the rare case of a 72-year-old male patient exhibiting both these conditions, with the aim of discussing the possible association between the two and, most importantly, the clinical management of the patient in a real-life setting over a period of 10 years. The patient was diagnosed based on clinical symptoms (bone pain), radiological imaging and specific laboratory tests, and received discontinuous courses of bisphosphonates and cyanocobalamin supplementation therapy, based mainly on aggravated symptomatology. A systematic literature review was also performed and revealed not only the scarcity of reports on similar cases, but also the mechanisms that may underlie the possible association of PDB with macrocytic anemia due to vitamin B12 deficiency in elderly patients.
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Affiliation(s)
- Violeta Oprea
- Department of Geriatrics and Gerontology, ‘St. Apostle Andrei’ Clinical Emergency County Hospital, 800578 Galați, Romania
| | - Violeta Bojincă
- Department of Internal Medicine and Rheumatology, ‘Sf. Maria’ Clinical Hospital, 011172 Bucharest, Romania
| | - Andra-Rodica Bălănescu
- Department of Internal Medicine and Rheumatology, ‘Sf. Maria’ Clinical Hospital, 011172 Bucharest, Romania
| | - Alin Tatu
- Clinical‑Medical Department, Dermatology, Faculty of Medicine and Pharmacy, ‘Dunărea de Jos’ University of Galati, ReForm UDJ, 800216 Galați, Romania
| | - Mihai Bojincă
- Department of Internal Medicine, Faculty of Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Aurelia Romila
- Department of Geriatrics and Gerontology, ‘St. Apostle Andrei’ Clinical Emergency County Hospital, 800578 Galați, Romania
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13
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Trivedi T, Guise TA. Systemic effects of abnormal bone resorption on muscle, metabolism, and cognition. Bone 2022; 154:116245. [PMID: 34718221 DOI: 10.1016/j.bone.2021.116245] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 10/21/2021] [Accepted: 10/25/2021] [Indexed: 12/11/2022]
Abstract
Skeletal tissue is dynamic, undergoing constant remodeling to maintain musculoskeletal integrity and balance in the human body. Recent evidence shows that apart from maintaining homeostasis in the local microenvironment, the skeleton systemically affects other tissues. Several cancer-associated and noncancer-associated bone disorders can disrupt the physiological homeostasis locally in the bone microenvironment and indirectly contribute to dysregulation of systemic body function. The systemic effects of bone on the regulation of distant organ function have not been widely explored. Recent evidence suggests that bone can interact with skeletal muscle, pancreas, and brain by releasing factors from mineralized bone matrix. Currently available bone-targeting therapies such as bisphosphonates and denosumab inhibit bone resorption, decrease morbidity associated with bone destruction, and improve survival. Bisphosphonates have been a standard treatment for bone metastases, osteoporosis, and cancer treatment-induced bone diseases. The extraskeletal effects of bisphosphonates on inhibition of tumor growth are known. However, our knowledge of the effects of bisphosphonates on muscle weakness, hyperglycemia, and cognitive defects is currently evolving. To be able to identify the molecular link between bone and distant organs during abnormal bone resorption and then treat these abnormalities and prevent their systemic effects could improve survival benefits. The current review highlights the link between bone resorption and its systemic effects on muscle, pancreas, and brain.
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Affiliation(s)
- Trupti Trivedi
- Department of Endocrine Neoplasia and Hormonal Disorders, The University of Texas MD Anderson Cancer Center, Houston, TX, United States of America
| | - Theresa A Guise
- Department of Endocrine Neoplasia and Hormonal Disorders, The University of Texas MD Anderson Cancer Center, Houston, TX, United States of America.
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De Ridder R, Vandeweyer G, Boudin E, Hendrickx G, Huybrechts Y, Cremers TC, Devogelaer JP, Mortier G, Fransen E, Van Hul W. A Panel-Based Sequencing Analysis of Patients with Paget's Disease of Bone Suggests Enrichment of Rare Genetic Variation in regulators of NF-κB Signaling and Supports the Importance of the 7q33 Locus. Calcif Tissue Int 2021; 109:656-665. [PMID: 34173013 DOI: 10.1007/s00223-021-00881-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 06/15/2021] [Indexed: 10/21/2022]
Abstract
Paget's disease of bone (PDB) is a common bone disorder characterized by focal lesions caused by increased bone turnover. Monogenic forms of PDB and PDB-related phenotypes as well as genome-wide association studies strongly support the involvement of genetic variation in components of the NF-κB signaling pathway in the pathogenesis of PDB. In this study, we performed a panel-based mutation screening of 52 genes. Single variant association testing and a series of gene-based association tests were performed. The former revealed a novel association with NFKBIA and further supports an involvement of variation in NR4A1, VCP, TNFRSF11A, and NUP205. The latter indicated a trend for enrichment of rare genetic variation in GAB2 and PRKCI. Both single variant tests and gene-based tests highlighted two genes, NR4A1 and NUP205. In conclusion, our findings support the involvement of genetic variation in modulators of NF-κB signaling in PDB and confirm the association of previously associated genes with the pathogenesis of PDB.
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Affiliation(s)
- Raphaël De Ridder
- Center of Medical Genetics, University of Antwerp & Antwerp University Hospital, Antwerp, Belgium
| | - Geert Vandeweyer
- Center of Medical Genetics, University of Antwerp & Antwerp University Hospital, Antwerp, Belgium
| | - Eveline Boudin
- Center of Medical Genetics, University of Antwerp & Antwerp University Hospital, Antwerp, Belgium
| | - Gretl Hendrickx
- Center of Medical Genetics, University of Antwerp & Antwerp University Hospital, Antwerp, Belgium
| | - Yentl Huybrechts
- Center of Medical Genetics, University of Antwerp & Antwerp University Hospital, Antwerp, Belgium
| | - Tycho Canter Cremers
- Center of Medical Genetics, University of Antwerp & Antwerp University Hospital, Antwerp, Belgium
| | - Jean-Pierre Devogelaer
- Department of Rheumatology, Saint-Luc University Hospital, Université Catholique de Louvain, Brussels, Belgium
| | - Geert Mortier
- Center of Medical Genetics, University of Antwerp & Antwerp University Hospital, Antwerp, Belgium
| | - Erik Fransen
- Center of Medical Genetics, University of Antwerp & Antwerp University Hospital, Antwerp, Belgium
| | - Wim Van Hul
- Center of Medical Genetics, University of Antwerp & Antwerp University Hospital, Antwerp, Belgium.
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The SQSTM1/p62 UBA domain regulates Ajuba localisation, degradation and NF-κB signalling function. PLoS One 2021; 16:e0259556. [PMID: 34735553 PMCID: PMC8568271 DOI: 10.1371/journal.pone.0259556] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 10/21/2021] [Indexed: 11/22/2022] Open
Abstract
The LIM-domain containing protein Ajuba and the scaffold protein SQSTM1/p62 regulate signalling of NF-κB, a transcription factor involved in osteoclast differentiation and survival. The ubiquitin-associated domain of SQSTM1/p62 is frequently mutated in patients with Paget’s disease of bone. Here, we report that Ajuba activates NF-κB activity in HEK293 cells, and that co-expression with SQSTM1/p62 inhibits this activation in an UBA domain-dependent manner. SQSTM1/p62 regulates proteins by targeting them to the ubiquitin-proteasome system or the autophagy-lysosome pathway. We show that Ajuba is degraded by autophagy, however co-expression with SQSTM1/p62 (wild type or UBA-deficient) protects Ajuba levels both in cells undergoing autophagy and those exposed to proteasomal stress. Additionally, in unstressed cells co-expression of SQSTM1/p62 reduces the amount of Ajuba present in the nucleus. SQSTM1/p62 with an intact ubiquitin-associated domain forms holding complexes with Ajuba that are not destined for degradation yet inhibit signalling. Thus, in situations with altered levels and localization of SQSTM1/p62 expression, such as osteoclasts in Paget’s disease of bone and various cancers, SQSTM1/p62 may compartmentalize Ajuba and thereby impact its cellular functions and disease pathogenesis. In Paget’s, ubiquitin-associated domain mutations may lead to increased or prolonged Ajuba-induced NF-κB signalling leading to increased osteoclastogenesis. In cancer, Ajuba expression promotes cell survival. The increased levels of SQSTM1/p62 observed in cancer may enhance Ajuba-mediated cancer cell survival.
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16
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Nguyen HD, Bisson M, Scott M, Boire G, Bouchard L, Roux S. miR profile in pagetic osteoclasts: from large-scale sequencing to gene expression study. J Mol Med (Berl) 2021; 99:1771-1781. [PMID: 34609560 DOI: 10.1007/s00109-021-02128-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/18/2021] [Accepted: 08/05/2021] [Indexed: 12/12/2022]
Abstract
Paget's disease of bone (PDB) is characterized by excessive and disorganized bone remodeling, in which bone-resorbing osteoclasts play a key role. We investigated microRNA (miR) expression in osteoclasts derived from the blood of 40 PDB patients and 30 healthy controls. By deep sequencing, a preliminary analysis identified differentially expressed miRs in a discovery cohort of 9 PDB patients and 9 age and sex-matched healthy controls. Six mature miRs, miR-29b1-3p, miR-15b-5p, miR-181a-5p, let-7i-3p, miR-500b-5p, and miR-1246, were found to be significantly decreased in pagetic overactive osteoclasts. The differential expression of the miRs was confirmed by the analysis of a larger independent cohort using qPCR. In an integrative network biology analysis of the miR candidates, we identified strong validated interactions between the miRs and some pathways, primarily apoptosis, and major osteoclast signaling pathways including PI3K/Akt, IFNγ, or TGFβ, as well as c-Fos, a transcription factor, and MMP-9, a metalloprotease. In addition, other genes like CCND2, CCND1, WEE1, SAMHD1, and AXIN2 were revealed in this network of interactions. Our results enhance the understanding of osteoclast biology in PDB; our work may also provide fresh perspectives on the research or therapeutic development of other bone diseases. KEY MESSAGES: miR profile in overactive osteoclasts from patients with Paget's disease of bone. Six mature miRs were significantly decreased in pagetic osteoclasts vs controls. miRs of interest: let7i-3p, miR-15b-5p, -29b1-3p, -181a-5p, -500b-5p, and -1246. Target genes and enriched pathways highlight the importance of apoptotic pathways.
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Affiliation(s)
- Hoang Dong Nguyen
- Department of Biochemistry and Functional Genomics, Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, PQ, Canada
| | - Martine Bisson
- Division of Rheumatology, Department of Medicine, Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, PQ, Canada
| | - Michelle Scott
- Department of Biochemistry and Functional Genomics, Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, PQ, Canada
| | - Gilles Boire
- Division of Rheumatology, Department of Medicine, Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, PQ, Canada
| | - Luigi Bouchard
- Clinical Department of Laboratory Medicine, Faculty of Medicine and Health Sciences, University of Sherbrooke, Chicoutimi, PQ, Canada
| | - Sophie Roux
- Division of Rheumatology, Department of Medicine, Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, PQ, Canada.
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Dufrançais O, Mascarau R, Poincloux R, Maridonneau-Parini I, Raynaud-Messina B, Vérollet C. Cellular and molecular actors of myeloid cell fusion: podosomes and tunneling nanotubes call the tune. Cell Mol Life Sci 2021; 78:6087-6104. [PMID: 34296319 PMCID: PMC8429379 DOI: 10.1007/s00018-021-03875-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 05/25/2021] [Accepted: 06/05/2021] [Indexed: 12/22/2022]
Abstract
Different types of multinucleated giant cells (MGCs) of myeloid origin have been described; osteoclasts are the most extensively studied because of their importance in bone homeostasis. MGCs are formed by cell-to-cell fusion, and most types have been observed in pathological conditions, especially in infectious and non-infectious chronic inflammatory contexts. The precise role of the different MGCs and the mechanisms that govern their formation remain poorly understood, likely due to their heterogeneity. First, we will introduce the main populations of MGCs derived from the monocyte/macrophage lineage. We will then discuss the known molecular actors mediating the early stages of fusion, focusing on cell-surface receptors involved in the cell-to-cell adhesion steps that ultimately lead to multinucleation. Given that cell-to-cell fusion is a complex and well-coordinated process, we will also describe what is currently known about the evolution of F-actin-based structures involved in macrophage fusion, i.e., podosomes, zipper-like structures, and tunneling nanotubes (TNT). Finally, the localization and potential role of the key fusion mediators related to the formation of these F-actin structures will be discussed. This review intends to present the current status of knowledge of the molecular and cellular mechanisms supporting multinucleation of myeloid cells, highlighting the gaps still existing, and contributing to the proposition of potential disease-specific MGC markers and/or therapeutic targets.
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Affiliation(s)
- Ophélie Dufrançais
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Rémi Mascarau
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France
- International Associated Laboratory (LIA) CNRS "IM-TB/HIV" (1167), Toulouse, France
- International Associated Laboratory (LIA) CNRS "IM-TB/HIV" (1167), Buenos Aires, Argentina
| | - Renaud Poincloux
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Isabelle Maridonneau-Parini
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France
- International Associated Laboratory (LIA) CNRS "IM-TB/HIV" (1167), Toulouse, France
| | - Brigitte Raynaud-Messina
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France.
- International Associated Laboratory (LIA) CNRS "IM-TB/HIV" (1167), Toulouse, France.
- International Associated Laboratory (LIA) CNRS "IM-TB/HIV" (1167), Buenos Aires, Argentina.
| | - Christel Vérollet
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France.
- International Associated Laboratory (LIA) CNRS "IM-TB/HIV" (1167), Toulouse, France.
- International Associated Laboratory (LIA) CNRS "IM-TB/HIV" (1167), Buenos Aires, Argentina.
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Tilden W, Saifuddin A. An update on imaging of Paget's sarcoma. Skeletal Radiol 2021; 50:1275-1290. [PMID: 33386903 DOI: 10.1007/s00256-020-03682-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 11/20/2020] [Accepted: 11/22/2020] [Indexed: 02/02/2023]
Abstract
Paget's sarcoma is a rare and particularly aggressive tumour arising within pagetic bone, affecting approximately 1% of patients with Paget's disease during the course of their disease. Most of these tumours are osteosarcomas, but the age profile, skeletal distribution and clinical outcomes differ considerably from conventional osteosarcoma. In this review, we outline the clinical, radiographic/CT, scintigraphic and magnetic resonance imaging features of Paget's sarcoma. We also review the neoplastic and non-neoplastic mimics of Paget's sarcoma that should be considered in the differential diagnosis when encountering an aggressive lesion within pagetic bone.
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Affiliation(s)
- William Tilden
- Department of Radiology, The Royal National Orthopaedic Hospital, Brockley Hill, Stanmore, HA7 4LP, UK.
| | - Asif Saifuddin
- Department of Radiology, The Royal National Orthopaedic Hospital, Brockley Hill, Stanmore, HA7 4LP, UK
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Nepal S, Jarusriwanna A, Unnanuntana A. Stress Fracture of the Femoral Shaft in Paget's Disease of Bone: A Case Report. J Bone Metab 2021; 28:171-178. [PMID: 34130369 PMCID: PMC8206614 DOI: 10.11005/jbm.2021.28.2.171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 04/19/2021] [Indexed: 11/12/2022] Open
Abstract
Paget’s disease of bone (PDB) is a progressive bone disorder characterized by increased osteoclast-mediated bone resorption and abnormal bone formation. Incomplete atypical femoral fracture, appearing radiographically as a stress fracture at the lateral aspect of the femur, is an uncommon low-trauma fracture frequently seen in association with long-term bisphosphonate therapy. We describe the case of a 61-year-old female patient with PDB who developed a stress fracture at the lateral femoral cortex after 5 doses of intravenous bisphosphonate. The conservative treatment plan included discontinuation of bisphosphonate, a continuation of calcium and vitamin D supplementation, and limited weight-bearing for 3 months. The patient’s pain level gradually improved after switching to the new treatment plan. At the latest follow-up, approximately 5 years after the initiation of conservative treatment, the patient remained pain-free, and her PDB was well-controlled. However, the fracture line was still visible on the most recent radiograph. Although it remains unclear whether a stress fracture at the lateral femoral cortex occurred due to bisphosphonate therapy or PDB, this case highlights the importance of careful evaluation of any lesion that appears in PDB patients receiving bisphosphonate therapy.
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Affiliation(s)
- Sarthak Nepal
- Department of Orthopaedic Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Atthakorn Jarusriwanna
- Department of Orthopaedics, Faculty of Medicine, Naresuan University, Phitsanulok, Thailand
| | - Aasis Unnanuntana
- Department of Orthopaedic Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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Paget's Disease of Bone: Osteoimmunology and Osteoclast Pathology. Curr Allergy Asthma Rep 2021; 21:23. [PMID: 33768371 DOI: 10.1007/s11882-021-01001-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/23/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE OF REVIEW The purpose of this review is to recognize clinical features of Paget's disease of bone and to describe how the osteoclast, a myeloid-derived cell responsible for bone resorption, contributes to the disease. RECENT FINDINGS Recent studies have identified several variants in SQSTM1, OPTN, and other genes that may predispose individuals to Paget's disease of bone; studies of these genes and their protein products have elucidated new roles for these proteins in bone physiology. Understanding the pathologic mechanisms in the Pagetic osteoclast may lead to the identification of future treatment targets for other inflammatory and autoimmune diseases characterized by abnormal bone erosion and/or osteoclast activation.
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21
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Xu F, Li W, Yang X, Na L, Chen L, Liu G. The Roles of Epigenetics Regulation in Bone Metabolism and Osteoporosis. Front Cell Dev Biol 2021; 8:619301. [PMID: 33569383 PMCID: PMC7868402 DOI: 10.3389/fcell.2020.619301] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 12/31/2020] [Indexed: 12/17/2022] Open
Abstract
Osteoporosis is a metabolic disease characterized by decreased bone mineral density and the destruction of bone microstructure, which can lead to increased bone fragility and risk of fracture. In recent years, with the deepening of the research on the pathological mechanism of osteoporosis, the research on epigenetics has made significant progress. Epigenetics refers to changes in gene expression levels that are not caused by changes in gene sequences, mainly including DNA methylation, histone modification, and non-coding RNAs (lncRNA, microRNA, and circRNA). Epigenetics play mainly a post-transcriptional regulatory role and have important functions in the biological signal regulatory network. Studies have shown that epigenetic mechanisms are closely related to osteogenic differentiation, osteogenesis, bone remodeling and other bone metabolism-related processes. Abnormal epigenetic regulation can lead to a series of bone metabolism-related diseases, such as osteoporosis. Considering the important role of epigenetic mechanisms in the regulation of bone metabolism, we mainly review the research progress on epigenetic mechanisms (DNA methylation, histone modification, and non-coding RNAs) in the osteogenic differentiation and the pathogenesis of osteoporosis to provide a new direction for the treatment of bone metabolism-related diseases.
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Affiliation(s)
- Fei Xu
- College of Medical Technology, Shanghai University of Medicine and Health Sciences, Shanghai, China
- Collaborative Innovation Center, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Wenhui Li
- Collaborative Innovation Center, Shanghai University of Medicine and Health Sciences, Shanghai, China
- College of Clinical Medicine, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Xiao Yang
- Traditional Chinese Vascular Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lixin Na
- Collaborative Innovation Center, Shanghai University of Medicine and Health Sciences, Shanghai, China
- College of Public Health, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Linjun Chen
- College of Medical Technology, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Guobin Liu
- Traditional Chinese Vascular Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
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22
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Sharma A, Sharma L, Goyal R. Molecular Signaling Pathways and Essential Metabolic Elements in Bone Remodeling: An Implication of Therapeutic Targets for Bone Diseases. Curr Drug Targets 2020; 22:77-104. [PMID: 32914712 DOI: 10.2174/1389450121666200910160404] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 06/28/2020] [Accepted: 07/15/2020] [Indexed: 01/01/2023]
Abstract
Bone is one of the dynamic tissues in the human body that undergoes continuous remodelling through subsequent actions of bone cells, osteoclasts, and osteoblasts. Several signal transduction pathways are involved in the transition of mesenchymal stem cells into osteoblasts. These primarily include Runx2, ATF4, Wnt signaling and sympathetic signalling. The differentiation of osteoclasts is controlled by M-CSF, RANKL, and costimulatory signalling. It is well known that bone remodelling is regulated through receptor activator of nuclear factor-kappa B ligand followed by binding to RANK, which eventually induces the differentiation of osteoclasts. The resorbing osteoclasts secrete TRAP, cathepsin K, MMP-9 and gelatinase to digest the proteinaceous matrix of type I collagen and form a saucer-shaped lacuna along with resorption tunnels in the trabecular bone. Osteoblasts secrete a soluble decoy receptor, osteoprotegerin that prevents the binding of RANK/RANKL and thus moderating osteoclastogenesis. Moreover, bone homeostasis is also regulated by several growth factors like, cytokines, calciotropic hormones, parathyroid hormone and sex steroids. The current review presents a correlation of the probable molecular targets underlying the regulation of bone mass and the role of essential metabolic elements in bone remodelling. Targeting these signaling pathways may help to design newer therapies for treating bone diseases.
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Affiliation(s)
- Aditi Sharma
- School of Pharmaceutical Sciences, Shoolini University, Solan, Himachal Pradesh, 173212, India
| | - Lalit Sharma
- School of Pharmaceutical Sciences, Shoolini University, Solan, Himachal Pradesh, 173212, India
| | - Rohit Goyal
- School of Pharmaceutical Sciences, Shoolini University, Solan, Himachal Pradesh, 173212, India
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23
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Roy M, Stephens E, Bouhour S, Roux S. RabGAP TBC1D25 is involved in human osteoclast activity. Eur J Cell Biol 2020; 100:151145. [PMID: 33353759 DOI: 10.1016/j.ejcb.2020.151145] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 12/06/2020] [Accepted: 12/08/2020] [Indexed: 01/01/2023] Open
Abstract
The osteoclast cell polarization and the ruffled border formation during bone resorption are major vesicle trafficking events. Rab GTPases have been shown to be involved in these processes, however very little is known about their regulators, such as Rab GTPase activating proteins (RabGAPs). In osteoclasts, we previously identified two spliced isoforms of TBC1D25, encoding a RabGAP which had never been studied in these cells. Using in vitro cultures, we evaluated the expression of TBC1D25 in human osteoclasts. TBC1D25 was expressed at the sealing zone co-localizing with F-actin, with an annular distribution, and also at the ruffled membrane with a less intense colocalization with LAMP2 and cathepsin K, but none with Rab7 or V-ATPase. Inhibiting TBC1D25 expression significantly decreased bone resorption, as well as the formation of multinucleated cells and the number of nuclei per cell. These results suggest that TBC1D25 has a role in bone resorption via the regulation of osteoclast polarization and resorption, and multinucleation as well.
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Affiliation(s)
- Michèle Roy
- Division of Rheumatology, Department of Medicine, Faculty of Medicine and Health Sciences, University of Sherbrooke, 3001, 12th Avenue North, Sherbrooke, PQ, Canada
| | - Elizabeth Stephens
- Division of Rheumatology, Department of Medicine, Faculty of Medicine and Health Sciences, University of Sherbrooke, 3001, 12th Avenue North, Sherbrooke, PQ, Canada
| | - Sophie Bouhour
- Division of Rheumatology, Department of Medicine, Faculty of Medicine and Health Sciences, University of Sherbrooke, 3001, 12th Avenue North, Sherbrooke, PQ, Canada
| | - Sophie Roux
- Division of Rheumatology, Department of Medicine, Faculty of Medicine and Health Sciences, University of Sherbrooke, 3001, 12th Avenue North, Sherbrooke, PQ, Canada.
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24
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Lee EJ, Jain M, Alimperti S. Bone Microvasculature: Stimulus for Tissue Function and Regeneration. TISSUE ENGINEERING PART B-REVIEWS 2020; 27:313-329. [PMID: 32940150 DOI: 10.1089/ten.teb.2020.0154] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Bone is a highly vascularized organ, providing structural support to the body, and its development, regeneration, and remodeling depend on the microvascular homeostasis. Loss or impairment of vascular function can develop diseases, such as large bone defects, avascular necrosis, osteoporosis, osteoarthritis, and osteopetrosis. In this review, we summarize how vasculature controls bone development and homeostasis in normal and disease cases. A better understanding of this process will facilitate the development of novel disease treatments that promote bone regeneration and remodeling. Specifically, approaches based on tissue engineering components, such as stem cells and growth factors, have demonstrated the capacity to induce bone microvasculature regeneration and mineralization. This knowledge will have relevant clinical implications for the treatment of bone disorders by developing novel pharmaceutical approaches and bone grafts. Finally, the tissue engineering approaches incorporating vascular components may widely be applied to treat other organ diseases by enhancing their regeneration capacity. Impact statement Bone vasculature is imperative in the process of bone development, regeneration, and remodeling. Alterations or disruption of the bone vasculature leads to loss of bone homeostasis and the development of bone diseases. In this study, we review the role of vasculature on bone diseases and how vascular tissue engineering strategies, with a detailed emphasis on the role of stem cells and growth factors, will contribute to bone therapeutics.
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Affiliation(s)
- Eun-Jin Lee
- American Dental Association Science and Research Institute, Gaithersburg, Maryland, USA
| | - Mahim Jain
- Kennedy Krieger Institute, John Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Stella Alimperti
- American Dental Association Science and Research Institute, Gaithersburg, Maryland, USA
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25
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Dessay M, Jobin Gervais F, Simonyan D, Samson A, Gleeton G, Gagnon E, Albert C, Brown JP, Michou L. Clinical phenotype of adult offspring carriers of the p.Pro392Leu mutation within the SQSTM1 gene in Paget's disease of bone. Bone Rep 2020; 13:100717. [PMID: 33015249 PMCID: PMC7522747 DOI: 10.1016/j.bonr.2020.100717] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 09/13/2020] [Accepted: 09/16/2020] [Indexed: 11/30/2022] Open
Abstract
Paget's disease of bone (PDB) is a common chronic bone disorder. In the French-Canadian population, the p.Pro392Leu mutation within the SQSTM1 gene is involved in 46% of familial forms. In New Zealand, the emergence of PDB in offspring inheriting SQSTM1 mutations was reported to be delayed by a decade compared to their parents. We aimed at assessing the clinical phenotype of offspring carriers of this mutation in our French-Canadian cohort. We reviewed research records from adult offspring carriers of this mutation aged <90 years and their affected parents. In parents, we collected data on sex, age at diagnosis, number of affected bones, total serum alkaline phosphatase levels (tALPs) at diagnosis. In offspring, PDB extended phenotype assessment relying on tALPs, bone specific alkaline phosphatase levels (bALPs), procollagen type 1 amino-terminal propeptide (P1NP), whole body bone scan and skull and pelvis radiographs, was performed at inclusion from 1996 to 2009 and updated in 2016 to 2018, if not done during the past 8 years. The results showed that among the 36 offspring with an updated phenotype, four of them developed a clinical phenotype of PDB characterized by monostotic or polyostotic increased bone uptake associated with typical radiographic lesions in the affected sites, representing an incidence of 1.83 per 1000 person-years. Moreover, the age at PDB diagnosis was delayed by at least 10 years in the adult offspring carriers of the p.Pro392Leu mutation versus their affected parents. Our findings support the utility of a regular monitoring of the adult offspring without PDB but carriers of this mutation.
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Affiliation(s)
- Mariam Dessay
- CHU de Québec-Université Laval Research Centre, Quebec, Quebec, Canada
| | | | - David Simonyan
- CHU de Québec-Université Laval Research Centre, Quebec, Quebec, Canada
| | - Andréanne Samson
- CHU de Québec-Université Laval Research Centre, Quebec, Quebec, Canada
| | - Guylaine Gleeton
- CHU de Québec-Université Laval Research Centre, Quebec, Quebec, Canada
| | - Edith Gagnon
- CHU de Québec-Université Laval Research Centre, Quebec, Quebec, Canada
| | | | - Jacques P Brown
- CHU de Québec-Université Laval Research Centre, Quebec, Quebec, Canada.,Department of Medicine, Université Laval, Quebec, Quebec, Canada
| | - Laëtitia Michou
- CHU de Québec-Université Laval Research Centre, Quebec, Quebec, Canada.,Department of Medicine, Université Laval, Quebec, Quebec, Canada.,Department of Rheumatology, CHU de Québec-Université Laval, Quebec, Quebec, Canada
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26
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Scotto di Carlo F, Pazzaglia L, Mumm S, Benassi MS, De Chiara A, Franchi A, Parafioriti A, Righi A, Esposito T, Whyte MP, Gianfrancesco F. ZNF687 Mutations in an Extended Cohort of Neoplastic Transformations in Paget's Disease of Bone: Implications for Clinical Pathology. J Bone Miner Res 2020; 35:1974-1980. [PMID: 32106343 DOI: 10.1002/jbmr.3993] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 01/17/2020] [Accepted: 01/27/2020] [Indexed: 01/06/2023]
Abstract
Neoplastic transformation is a rare but serious complication of Paget's disease of bone (PDB), occurring in fewer than 1% of individuals with polyostotic disease. Their prognosis is poor, with less than 50% surviving 5 years. In 2016, the genetic alteration of giant cell tumor (GCT) complicating PDB was identified as a founder germline mutation (P937R) in the ZNF687 gene. However, the study population was exclusively of Italian descent, and patients of different ethnic origins were not studied. To fill this gap, herein we performed mutation analysis of ZNF687 in a GCT in the pelvis of a 45-year-old black American woman with polyostotic PDB. The P937R mutation in ZNF687 was found in her tumor but, as expected, the ancestral haplotype that characterizes the Italian GCT/PDB patients was not found. Furthermore, we identified two additional Italian GCT/PDB patients with this ZNF687 mutation, now constituting a cohort of 18 GCT/PDB cases, all harboring the identical mutation. We also searched for ZNF687 mutations in a unique collection of tumor tissues derived from Italian PDB patients, including 28 osteosarcomas (OS/PDB), 8 undifferentiated sarcomas (SRC/PDB), 1 fibrosarcoma (FS/PDB), and 1 chondrosarcoma (CS/PDB). We identified the P937R mutation in one SRC/PDB and a different ZNF687 mutation (R331W) in 1 of 28 pagetic osteosarcomas. Thus, whereas GCT/PDB pathogenesis globally seems to involve the P937R mutation in ZNF687, other neoplasms associated with PDB seem to be less related to mutations in this gene. Finally, we identified the G34W mutation in the H3F3A gene in the maxillary tumor masses of two PDB patients, defining them as conventional GCT rather than GCT/PDB. Thus, combined molecular analysis of H3F3A and ZNF687 is essential to clarify the origin and diagnosis of tumors in PDB. © 2020 American Society for Bone and Mineral Research.
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Affiliation(s)
| | - Laura Pazzaglia
- Laboratory of Experimental Oncology, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Steven Mumm
- Division of Bone and Mineral Diseases, Department of Internal Medicine, Washington University School of Medicine at Barnes-Jewish Hospital, St. Louis, MO, USA.,Center for Metabolic Bone Disease and Molecular Research, Shriners Hospitals for Children-St. Louis, St. Louis, MO, USA
| | - Maria S Benassi
- Laboratory of Experimental Oncology, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Annarosaria De Chiara
- Pathology Division, Istituto Nazionale Tumori IRCCS, Fondazione G. Pascale, Naples, Italy
| | - Alessandro Franchi
- Department of Translational Research and of New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | | | - Alberto Righi
- Department of Pathology, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Teresa Esposito
- Institute of Genetics and Biophysics, National Research Council of Italy, Naples, Italy.,IRCCS INM Neuromed, Pozzilli, Italy
| | - Michael P Whyte
- Division of Bone and Mineral Diseases, Department of Internal Medicine, Washington University School of Medicine at Barnes-Jewish Hospital, St. Louis, MO, USA.,Center for Metabolic Bone Disease and Molecular Research, Shriners Hospitals for Children-St. Louis, St. Louis, MO, USA
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27
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Nakamura S, Masuyama R, Sakai K, Fukuda K, Takeda K, Tanimura S. SH3P2 suppresses osteoclast differentiation through restricting membrane localization of myosin 1E. Genes Cells 2020; 25:707-717. [PMID: 32916757 DOI: 10.1111/gtc.12806] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/23/2020] [Accepted: 09/02/2020] [Indexed: 01/21/2023]
Abstract
Osteoclasts are multinucleated cells responsible for bone resorption. Src homology 3 (SH3) domain-containing protein-2 (SH3P2)/osteoclast-stimulating factor-1 regulates osteoclast differentiation, but its exact role remains elusive. Here, we show that SH3P2 suppresses osteoclast differentiation. SH3P2 knockout (KO) mice displayed decreased femoral trabecular bone mass and enhanced localization of osteoclasts on the tibial trabecular bone surface, suggesting that SH3P2 suppresses bone resorption by osteoclasts. Osteoclast differentiation based on cellular multinuclearity induced by macrophage colony-stimulating factor and receptor activator of nuclear factor-κB ligand (RANKL) was enhanced in bone marrow-derived macrophages lacking SH3P2. RANKL induced SH3P2 dephosphorylation, which increased the association of actin-dependent motor protein myosin 1E (Myo1E) with SH3P2 and thereby prevented Myo1E localization to the plasma membrane. Consistent with this, Myo1E in the membrane fraction increased in SH3P2-KO cells. Together with the attenuated osteoclast differentiation in Myo1E knocked down cells, SH3P2 may suppress osteoclast differentiation by preventing their cell-to-cell fusion depending on Myo1E membrane localization.
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Affiliation(s)
- Shota Nakamura
- Department of Cell Regulation, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Ritsuko Masuyama
- Department of Gastronomy Management, College of Gastronomy Management, Ritsumeikan University, Kusatsu, Japan
| | - Kosuke Sakai
- Department of Cell Regulation, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Karin Fukuda
- Department of Cell Regulation, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Kohsuke Takeda
- Department of Cell Regulation, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Susumu Tanimura
- Department of Cell Regulation, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
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28
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Belorusova AY, Chalhoub S, Rovito D, Rochel N. Structural Analysis of VDR Complex with ZK168281 Antagonist. J Med Chem 2020; 63:9457-9463. [PMID: 32787090 DOI: 10.1021/acs.jmedchem.0c00656] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Vitamin D receptor (VDR) antagonists prevent the VDR activation function helix 12 from folding into its active conformation, thus affecting coactivator recruitment and antagonizing the transcriptional regulation induced by 1α,25-dihydroxyvitamin D3. Here, we report the crystal structure of the zebrafish VDR ligand-binding domain in complex with the ZK168281 antagonist, revealing that the ligand prevents optimal folding of the C-terminal region of VDR. This interference was confirmed by hydrogen-deuterium exchange mass spectrometry (HDX-MS) in solution.
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Affiliation(s)
- Anna Y Belorusova
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), 67400 Illkirch, France.,Institut National de La Santé et de La Recherche Médicale (INSERM), U1258, 67400 Illkirch, France.,Centre National de Recherche Scientifique (CNRS), UMR7104, 67400 Illkirch, France.,Université de Strasbourg, 67400 Illkirch, France.,Medicinal Chemistry, Early Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, 431 83 Gothenburg, Sweden
| | - Sandra Chalhoub
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), 67400 Illkirch, France.,Institut National de La Santé et de La Recherche Médicale (INSERM), U1258, 67400 Illkirch, France.,Centre National de Recherche Scientifique (CNRS), UMR7104, 67400 Illkirch, France.,Université de Strasbourg, 67400 Illkirch, France
| | - Daniela Rovito
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), 67400 Illkirch, France.,Institut National de La Santé et de La Recherche Médicale (INSERM), U1258, 67400 Illkirch, France.,Centre National de Recherche Scientifique (CNRS), UMR7104, 67400 Illkirch, France.,Université de Strasbourg, 67400 Illkirch, France
| | - Natacha Rochel
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), 67400 Illkirch, France.,Institut National de La Santé et de La Recherche Médicale (INSERM), U1258, 67400 Illkirch, France.,Centre National de Recherche Scientifique (CNRS), UMR7104, 67400 Illkirch, France.,Université de Strasbourg, 67400 Illkirch, France
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29
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Merlotti D, Materozzi M, Bianciardi S, Guarnieri V, Rendina D, Volterrani L, Bellan C, Mingiano C, Picchioni T, Frosali A, Orfanelli U, Cenci S, Gennari L. Mutation of PFN1 Gene in an Early Onset, Polyostotic Paget-like Disease. J Clin Endocrinol Metab 2020; 105:5835857. [PMID: 32392277 DOI: 10.1210/clinem/dgaa252] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 05/05/2020] [Indexed: 12/11/2022]
Abstract
CONTEXT Paget disease of bone (PDB) is a metabolic bone disease whose genetic cause remains unknown in up to 50% of familial patients. OBJECTIVE Our aim was to investigate the underlying genetic defect in a large pedigree with a severe, early onset, autosomal dominant form of PDB across 3 generations. METHODS Whole exome sequencing was performed in affected and unaffected family members, and then mutation screening was replicated in a sample of PDB patients with early-onset, polyostotic PDB. RESULTS We identified a frameshift D107Rfs*3 mutation in PFN1 (encoding for profilin 1, a highly conserved regulator of actin-polymerization and cell motility) causing the truncation of the C-terminal part of the protein. The mutation was also detected in a 17-year-old asymptomatic family member who upon biochemical and radiological analyses was indeed found to be affected. Sequencing of the entire PFN1 coding region in unrelated PDB patients identified the same mutation in 1 patient. All mutation carriers had a reduced response to bisphosphonates, requiring multiple zoledronate infusions to control bone pain and achieve biochemical remission over a long term. In vitro osteoclastogenesis in peripheral blood mononuclear cells (PBMCs) from mutation carriers showed a higher number of osteoclasts with PDB-like features. A similar phenotype was observed upon PFN1 silencing in murine bone marrow-derived monocytes, suggesting that the frameshift PFN1 mutation confers a loss of function in profilin 1 activity that induces PDB-like features in the osteoclasts, likely due to enhanced cell motility and actin ring formation. CONCLUSIONS Our findings indicate that PFN1 mutation causes an early onset, polyostotic PDB-like disorder.
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Affiliation(s)
- Daniela Merlotti
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
| | - Maria Materozzi
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
- Division of Genetics and Cell Biology, San Raffaele Scientific Institute, Milan, Italy
| | - Simone Bianciardi
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
| | - Vito Guarnieri
- Medical Genetics Service, IRCCS "Casa Sollievo della Sofferenza" Hospital, San Giovanni Rotondo (FG), Italy
| | - Domenico Rendina
- Department of Clinical and Surgical Sciences, Federico II University Medical School, Naples, Italy
| | - Luca Volterrani
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
| | - Cristiana Bellan
- Department of Medical Biotechnologies, University of Siena, Italy
| | - Christian Mingiano
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
| | - Tommaso Picchioni
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
| | - Alessandro Frosali
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
| | - Ugo Orfanelli
- Division of Genetics and Cell Biology, San Raffaele Scientific Institute, Milan, Italy
| | - Simone Cenci
- Division of Genetics and Cell Biology, San Raffaele Scientific Institute, Milan, Italy
| | - Luigi Gennari
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
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30
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Pereira M, Ko JH, Logan J, Protheroe H, Kim KB, Tan ALM, Croucher PI, Park KS, Rotival M, Petretto E, Bassett JD, Williams GR, Behmoaras J. A trans-eQTL network regulates osteoclast multinucleation and bone mass. eLife 2020; 9:55549. [PMID: 32553114 PMCID: PMC7351491 DOI: 10.7554/elife.55549] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 06/12/2020] [Indexed: 12/11/2022] Open
Abstract
Functional characterisation of cell-type-specific regulatory networks is key to establish a causal link between genetic variation and phenotype. The osteoclast offers a unique model for interrogating the contribution of co-regulated genes to in vivo phenotype as its multinucleation and resorption activities determine quantifiable skeletal traits. Here we took advantage of a trans-regulated gene network (MMnet, macrophage multinucleation network) which we found to be significantly enriched for GWAS variants associated with bone-related phenotypes. We found that the network hub gene Bcat1 and seven other co-regulated MMnet genes out of 13, regulate bone function. Specifically, global (Pik3cb-/-, Atp8b2+/-, Igsf8-/-, Eml1-/-, Appl2-/-, Deptor-/-) and myeloid-specific Slc40a1 knockout mice displayed abnormal bone phenotypes. We report opposing effects of MMnet genes on bone mass in mice and osteoclast multinucleation/resorption in humans with strong correlation between the two. These results identify MMnet as a functionally conserved network that regulates osteoclast multinucleation and bone mass.
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Affiliation(s)
- Marie Pereira
- Centre for Inflammatory Disease, Department of Immunology and Inflammation, Hammersmith Hospital, Imperial College London, London, United Kingdom.,Molecular Endocrinology Laboratory, Department of Metabolism, Digestion and Reproduction, Hammersmith Hospital, Imperial College London, London, United Kingdom
| | - Jeong-Hun Ko
- Centre for Inflammatory Disease, Department of Immunology and Inflammation, Hammersmith Hospital, Imperial College London, London, United Kingdom.,Molecular Endocrinology Laboratory, Department of Metabolism, Digestion and Reproduction, Hammersmith Hospital, Imperial College London, London, United Kingdom
| | - John Logan
- Molecular Endocrinology Laboratory, Department of Metabolism, Digestion and Reproduction, Hammersmith Hospital, Imperial College London, London, United Kingdom
| | - Hayley Protheroe
- Molecular Endocrinology Laboratory, Department of Metabolism, Digestion and Reproduction, Hammersmith Hospital, Imperial College London, London, United Kingdom
| | - Kee-Beom Kim
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, Charlottesville, United States
| | | | - Peter I Croucher
- The Garvan Institute of Medical Research and St. Vincent's Clinical School, University of NewSouth Wales Medicine, Sydney, Australia
| | - Kwon-Sik Park
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, Charlottesville, United States
| | - Maxime Rotival
- Human Evolutionary Genetics Unit, Institut Pasteur, Centre National de la Recherche Scientifique, UMR 2000, Paris, France
| | | | - Jh Duncan Bassett
- Molecular Endocrinology Laboratory, Department of Metabolism, Digestion and Reproduction, Hammersmith Hospital, Imperial College London, London, United Kingdom
| | - Graham R Williams
- Molecular Endocrinology Laboratory, Department of Metabolism, Digestion and Reproduction, Hammersmith Hospital, Imperial College London, London, United Kingdom
| | - Jacques Behmoaras
- Centre for Inflammatory Disease, Department of Immunology and Inflammation, Hammersmith Hospital, Imperial College London, London, United Kingdom
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31
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Osteoclast signaling-targeting miR-146a-3p and miR-155-5p are downregulated in Paget's disease of bone. Biochim Biophys Acta Mol Basis Dis 2020; 1866:165852. [PMID: 32485219 DOI: 10.1016/j.bbadis.2020.165852] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/25/2020] [Accepted: 05/27/2020] [Indexed: 12/11/2022]
Abstract
MicroRNA (miRs) are small, non-coding RNA that post-transcriptionally regulate DNA expression. We hypothesized that specific miR profiles may be a feature of overactive osteoclasts in Paget's disease of bone (PDB), a disorder characterized by an increased and disorganized bone remodeling that typically begins with excessive bone resorption. We compared the expression profile of 13 miRs in human osteoclasts differentiated in vitro from peripheral blood mononuclear cells (PBMCs) of patients with PDB (n = 10) or age- and sex- matched healthy subjects (n = 10). We selected 13 miRs for testing, on the basis of their previously reported roles either in human osteoclast differentiation, in bone diseases, or in osteoclast important signaling pathways. From those expression results, 3 miRNAs were further selected for in-vitro studies aiming at modulating miR expression in human cord blood monocyte derived osteoclasts: 2 miRs (miR-146a-3p and miR-155-5p) whose expression was significantly reduced in pagetic osteoclasts, as well as miRNA-133a-3p, stable in PDB relative to controls, but with known regulatory importance within osteoclasts. We demonstrated a positive (miR-133a-3p) or negative (miR-155-5p, miR-146a-3p) impact of those miRs on the formation of osteoclasts and/or their bone resorption capacity in this human model. Signaling pathways were significantly affected, including p38 MAP-kinase (miR-133a-3p), RANKL-induced TRAF6/NFκB signaling (miR-146a-3p), and MITF expression (miR-155-5p). Osteoclast miRNA profiles might have an important value to yield significant new insights into the osteoclast phenotype in PDB and in other bone diseases with hyperactive osteoclasts.
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32
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Optineurin regulates osteoblastogenesis through STAT1. Biochem Biophys Res Commun 2020; 525:889-894. [DOI: 10.1016/j.bbrc.2020.03.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 03/05/2020] [Indexed: 01/19/2023]
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33
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Michou L, Orcel P. Has Paget's bone disease become rare? Joint Bone Spine 2019; 86:538-541. [DOI: 10.1016/j.jbspin.2019.01.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/29/2018] [Indexed: 10/27/2022]
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Raynaud-Messina B, Verollet C, Maridonneau-Parini I. The osteoclast, a target cell for microorganisms. Bone 2019; 127:315-323. [PMID: 31233933 DOI: 10.1016/j.bone.2019.06.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 06/11/2019] [Accepted: 06/21/2019] [Indexed: 02/02/2023]
Abstract
Bone is a highly adaptive tissue with regenerative properties that is subject to numerous diseases. Infection is one of the causes of altered bone homeostasis. Bone infection happens subsequently to bone surgery or to systemic spreading of microorganisms. In addition to osteoblasts, osteoclasts (OCs) also constitute cell targets for pathogens. OCs are multinucleated cells that have the exclusive ability to resorb bone mineral tissue. However, the OC is much more than a bone eater. Beyond its role in the control of bone turnover, the OC is an immune cell that produces and senses inflammatory cytokines, ingests microorganisms and presents antigens. Today, increasing evidence shows that several pathogens use OC as a host cell to grow, generating debilitating bone defects. In this review, we exhaustively inventory the bacteria and viruses that infect OC and report the present knowledge in this topic. We point out that most of the microorganisms enhance the bone resorption activity of OC. We notice that pathogen interactions with the OC require further investigation, in particular to validate the OC as a host cell in vivo and to identify the cellular mechanisms involved in altered bone resorption. Thus, we conclude that the OC is a new cell target for pathogens; this new research area paves the way for new therapeutic strategies in the infections causing bone defects.
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Affiliation(s)
- Brigitte Raynaud-Messina
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France; International Associated Laboratory (LIA) CNRS "IM-TB/HIV" (1167), Toulouse, France; International Associated Laboratory (LIA) CNRS "IM-TB/HIV" (1167), Buenos Aires, Argentina
| | - Christel Verollet
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France; International Associated Laboratory (LIA) CNRS "IM-TB/HIV" (1167), Toulouse, France; International Associated Laboratory (LIA) CNRS "IM-TB/HIV" (1167), Buenos Aires, Argentina
| | - Isabelle Maridonneau-Parini
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France; International Associated Laboratory (LIA) CNRS "IM-TB/HIV" (1167), Toulouse, France; International Associated Laboratory (LIA) CNRS "IM-TB/HIV" (1167), Buenos Aires, Argentina.
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Rubino E, Di Stefano M, Galimberti D, Serpente M, Scarpini E, Fenoglio C, Bo M, Rainero I. C9ORF72 hexanucleotide repeat expansion frequency in patients with Paget's disease of bone. Neurobiol Aging 2019; 85:154.e1-154.e3. [PMID: 31530427 DOI: 10.1016/j.neurobiolaging.2019.08.014] [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] [Received: 01/14/2019] [Revised: 06/21/2019] [Accepted: 08/14/2019] [Indexed: 11/24/2022]
Abstract
Paget's disease of bone (PDB) is a focal bone disorder affecting the skeleton segmentally. A strong genetic component has been shown in PDB, and variants in several genes, such as SQSTM1, VCP, and OPTN, have been associated with the disease. Mutations in the same genes have also been reported in patients with frontotemporal dementia and amyotrophic lateral sclerosis. Hexanucleotide repeat expansions in the C9ORF72 gene have been shown to be responsible for both familial and sporadic frontotemporal dementia/amyotrophic lateral sclerosis. Thence, we evaluated the frequency of the C9ORF72 hexanucleotide repeat expansions in a cohort of 191 Italian PDB patients and in 106 controls. The pathogenic repeat expansion was detected in 2 PDB patients (1.0%). During the follow-up period, both PDB patients did not develop any sign of mental decline and/or motor neuron disease. Our study suggests that repeat expansions in the C9ORF72 gene are rare in patients with PDB.
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Affiliation(s)
- Elisa Rubino
- Department of Neuroscience and Mental Health, A.O.U. Città della Salute e della Scienza di Torino, Italy; Department of Neuroscience "Rita Levi Montalcini", University of Torino, Torino, Italy.
| | - Marco Di Stefano
- Unit of Geriatrics and Metabolic Bone Disorders, Department of Medical Sciences, University of Torino, Torino, Italy
| | - Daniela Galimberti
- Department of Pathophysiology and Transplantation, University of Milan, Dino Ferrari Center, Milan, Italy
| | - Maria Serpente
- Department of Pathophysiology and Transplantation, University of Milan, Dino Ferrari Center, Milan, Italy
| | - Elio Scarpini
- Department of Pathophysiology and Transplantation, University of Milan, Dino Ferrari Center, Milan, Italy
| | - Chiara Fenoglio
- Department of Pathophysiology and Transplantation, University of Milan, Dino Ferrari Center, Milan, Italy
| | - Mario Bo
- Unit of Geriatrics and Metabolic Bone Disorders, Department of Medical Sciences, University of Torino, Torino, Italy
| | - Innocenzo Rainero
- Department of Neuroscience and Mental Health, A.O.U. Città della Salute e della Scienza di Torino, Italy; Department of Neuroscience "Rita Levi Montalcini", University of Torino, Torino, Italy
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Sudhakar P, Jacomin AC, Hautefort I, Samavedam S, Fatemian K, Ari E, Gul L, Demeter A, Jones E, Korcsmaros T, Nezis IP. Targeted interplay between bacterial pathogens and host autophagy. Autophagy 2019; 15:1620-1633. [PMID: 30909843 PMCID: PMC6693458 DOI: 10.1080/15548627.2019.1590519] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 02/21/2019] [Accepted: 03/01/2019] [Indexed: 12/12/2022] Open
Abstract
Due to the critical role played by autophagy in pathogen clearance, pathogens have developed diverse strategies to subvert it. Despite previous key findings of bacteria-autophagy interplay, asystems-level insight into selective targeting by the host and autophagy modulation by the pathogens is lacking. We predicted potential interactions between human autophagy proteins and effector proteins from 56 pathogenic bacterial species by identifying bacterial proteins predicted to have recognition motifs for selective autophagy receptors SQSTM1/p62, CALCOCO2/NDP52 and MAP1LC3/LC3. Using structure-based interaction prediction, we identified bacterial proteins capable to modify core autophagy components. Our analysis revealed that autophagy receptors in general potentially target mostly genus-specific proteins, and not those present in multiple genera. The complementarity between the predicted SQSTM1/p62 and CALCOCO2/NDP52 targets, which has been shown for Salmonella, Listeria and Shigella, could be observed across other pathogens. This complementarity potentially leaves the host more susceptible to chronic infections upon the mutation of autophagy receptors. Proteins derived from enterotoxigenic and non-toxigenic Bacillus outer membrane vesicles indicated that autophagy targets pathogenic proteins rather than non-pathogenic ones. We also observed apathogen-specific pattern as to which autophagy phase could be modulated by specific genera. We found intriguing examples of bacterial proteins that could modulate autophagy, and in turn being targeted by autophagy as ahost defense mechanism. We confirmed experimentally an interplay between a Salmonella protease, YhjJ and autophagy. Our comparative meta-analysis points out key commonalities and differences in how pathogens could affect autophagy and how autophagy potentially recognizes these pathogenic effectors. Abbreviations: ATG5: autophagy related 5; CALCOCO2/NDP52: calcium binding and coiled-coil domain 2; GST: glutathione S-transferase; LIR: MAP1LC3/LC3-interacting region; MAP1LC3/LC3: microtubule associated protein 1 light chain 3 alpha; OMV: outer membrane vesicles; SQSTM1/p62: sequestosome 1; SCV: Salmonella containing vesicle; TECPR1: tectonin beta-propeller repeat containing 1; YhjJ: hypothetical zinc-protease.
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Affiliation(s)
- Padhmanand Sudhakar
- Earlham Institute, Norwich Research Park, Norwich, UK
- Gut Health and Microbes Programme, Quadram Institute, Norwich Research Park, Norwich, UK
- Department of Chronic Diseases, Metabolism and Ageing, KU Leuven, Leuven, Belgium
| | | | | | - Siva Samavedam
- School of Life Sciences, University of Warwick, Coventry, UK
| | - Koorosh Fatemian
- School of Life Sciences, University of Warwick, Coventry, UK
- Current affiliation:Exaelements LTD, Coventry, UK
| | - Eszter Ari
- Department of Genetics, Eotvos Lorand University, Budapest, Hungary
- Synthetic and System Biology Unit, Institute of Biochemistry, Biological Research Centre of the Hungarian Academy of Sciences, Szeged, Hungary
| | - Leila Gul
- Earlham Institute, Norwich Research Park, Norwich, UK
| | - Amanda Demeter
- Earlham Institute, Norwich Research Park, Norwich, UK
- Gut Health and Microbes Programme, Quadram Institute, Norwich Research Park, Norwich, UK
- Department of Genetics, Eotvos Lorand University, Budapest, Hungary
| | - Emily Jones
- Earlham Institute, Norwich Research Park, Norwich, UK
- Gut Health and Microbes Programme, Quadram Institute, Norwich Research Park, Norwich, UK
| | - Tamas Korcsmaros
- Earlham Institute, Norwich Research Park, Norwich, UK
- Gut Health and Microbes Programme, Quadram Institute, Norwich Research Park, Norwich, UK
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Jeong JW, Ji SY, Lee H, Hong SH, Kim GY, Park C, Lee BJ, Park EK, Hyun JW, Jeon YJ, Choi YH. Fermented Sea Tangle ( Laminaria japonica Aresch) Suppresses RANKL-Induced Osteoclastogenesis by Scavenging ROS in RAW 264.7 Cells. Foods 2019; 8:foods8080290. [PMID: 31357503 PMCID: PMC6723172 DOI: 10.3390/foods8080290] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 07/23/2019] [Accepted: 07/23/2019] [Indexed: 01/20/2023] Open
Abstract
Sea tangle (Laminaria japonica Aresch), a brown alga, has been used for many years as a functional food ingredient in the Asia-Pacific region. In the present study, we investigated the effects of fermented sea tangle extract (FST) on receptor activator of nuclear factor-κB (NF-κB) ligand (RANKL)-stimulated osteoclast differentiation, using RAW 264.7 mouse macrophage cells. FST was found to inhibit the RANKL-stimulated activation of tartrate-resistance acid phosphatase (TRAP) and F-actin ring structure formation. FST also down-regulated the expression of osteoclast marker genes like TRAP, matrix metalloproteinase-9, cathepsin K and osteoclast-associated receptor by blocking RANKL-induced activation of NF-κB and expression of nuclear factor of activated T cells c1 (NFATc1), a master transcription factor. In addition, FST significantly abolished RANKL-induced generation of reactive oxygen species (ROS) by activation of nuclear factor-erythroid 2-related factor 2 (Nrf2) and its transcriptional targets. Hence, it seems likely that FST may have anti-osteoclastogenic potential as a result of its ability to inactivate the NF-κB-mediated NFATc1 signaling pathway and by reducing ROS production through activation of the Nrf2 pathway. Although further studies are needed to inquire its efficacy in vivo, FST appears to have potential use as an adjunctive or as a prophylactic treatment for osteoclastic bone disease.
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Affiliation(s)
- Jin-Woo Jeong
- Nakdonggang National Institute of Biological Resources, Sangju 37242, Korea
| | - Seon Yeong Ji
- Department of Biochemistry, Dong-eui University College of Korean Medicine, Busan 47227, Korea
- Anti-Aging Research Center, Dong-eui University, Busan 47227, Korea
| | - Hyesook Lee
- Department of Biochemistry, Dong-eui University College of Korean Medicine, Busan 47227, Korea
- Anti-Aging Research Center, Dong-eui University, Busan 47227, Korea
| | - Su Hyun Hong
- Department of Biochemistry, Dong-eui University College of Korean Medicine, Busan 47227, Korea
- Anti-Aging Research Center, Dong-eui University, Busan 47227, Korea
| | - Gi-Young Kim
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Korea
| | - Cheol Park
- Department of Molecular Biology, College of Natural Sciences, Dong-eui University, Busan 47340, Korea
| | - Bae-Jin Lee
- Marine Bioprocess Co. Ltd., Busan 46048, Korea
| | - Eui Kyun Park
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, Kyungpook National University, Daegu 41940, Korea
| | - Jin Won Hyun
- Department of Biochemistry, School of Medicine, Jeju National University, Jeju 63243, Korea
| | - You-Jin Jeon
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Korea
| | - Yung Hyun Choi
- Department of Biochemistry, Dong-eui University College of Korean Medicine, Busan 47227, Korea.
- Anti-Aging Research Center, Dong-eui University, Busan 47227, Korea.
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38
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Gennari L, Rendina D, Falchetti A, Merlotti D. Paget's Disease of Bone. Calcif Tissue Int 2019; 104:483-500. [PMID: 30671590 DOI: 10.1007/s00223-019-00522-3] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Accepted: 12/30/2018] [Indexed: 01/04/2023]
Abstract
Paget's disease of bone (PDB) is a chronic and focal bone disorder, characterized by increased osteoclast-mediated bone resorption and a subsequent compensatory increase in bone formation, resulting in a disorganized mosaic of woven and lamellar bone at one or more affected skeletal sites. As a result, bone pain, noticeable deformities, arthritis at adjacent joints, and fractures can occur. In a small proportion of cases neoplastic degeneration in osteosarcoma, or, less frequently, giant cell tumor has been also described at PDB sites. While recent epidemiological evidences clearly indicate a decrease in the prevalence and the severity of PDB, over the past 2 decades there have been consistent advances on the genetic mechanisms of disease. It is now clear that PDB is a genetically heterogeneous disorder, with mutations in at least two different genes (SQSTM1, ZNF687) and more common predisposing variants. As a counterpart to the genetic hypothesis, the focal nature of lesions, the decline in prevalence rates, and the incomplete penetrance of the disease among family members suggest that one or more environmental triggers may play a role in the pathophysiology of PDB. The exact nature of these triggers and how they might interact with the genetic factors are less understood, but recent experimental data from mice models suggest the implication of paramixoviral infections. The clinical management of PDB has also evolved considerably, with the development of potent aminobisphosphonates such as zoledronic acid which, given as a single intravenous infusion, now allows a long-term disease remission in the majority of patients.
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Affiliation(s)
- Luigi Gennari
- Department of Medicine, Surgery and Neurosciences, University of Siena, Siena, Italy.
- Policlinico Santa Maria alle Scotte, Viale Bracci, 53100, Siena, Italy.
| | - Domenico Rendina
- Department of Medicine and Surgery, Federico II University, Naples, Italy
| | - Alberto Falchetti
- Centro Hercolani and Villa Alba (GVM), 40123 Bologna and EndOsMet, Villa Donatello Private Hospital, 50132, Florence, Italy
| | - Daniela Merlotti
- Department of Medicine, Surgery and Neurosciences, University of Siena, Siena, Italy
- Division of Genetics and Cell Biology, San Raffaele Hospital, Milan, Italy
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Protective Effects of Fermented Oyster Extract against RANKL-Induced Osteoclastogenesis through Scavenging ROS Generation in RAW 264.7 Cells. Int J Mol Sci 2019; 20:ijms20061439. [PMID: 30901917 PMCID: PMC6471417 DOI: 10.3390/ijms20061439] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 03/14/2019] [Accepted: 03/19/2019] [Indexed: 11/17/2022] Open
Abstract
Excessive bone resorption by osteoclasts causes bone loss-related diseases and reactive oxygen species (ROS) act as second messengers in intercellular signaling pathways during osteoclast differentiation. In this study, we explored the protective effects of fermented oyster extract (FO) against receptor activator of nuclear factor-κB (NF-κB) ligand (RANKL)-induced osteoclast differentiation in murine monocyte/macrophage RAW 264.7 cells. Our results showed that FO markedly inhibited RANKL-induced activation of tartrate-resistant acid phosphatase and formation of F-actin ring structure. Mechanistically, FO has been shown to down-regulate RANKL-induced expression of osteoclast-specific markers by blocking the nuclear translocation of NF-κB and the transcriptional activation of nuclear factor of activated T cells c1 (NFATc1) and c-Fos. Furthermore, FO markedly diminished ROS production by RANKL stimulation, which was associated with blocking the expression of nicotinamide adenine dinucleotide phosphate oxidase 1 (NOX1) and its regulatory subunit Rac-1. However, a small interfering RNA (siRNA) targeting NOX1 suppressed RANKL-induced expression of osteoclast-specific markers and production of ROS and attenuated osteoclast differentiation as in the FO treatment group. Collectively, our findings suggest that FO has anti-osteoclastogenic potential by inactivating the NF-κB-mediated NFATc1 and c-Fos signaling pathways and inhibiting ROS generation, followed by suppression of osteoclast-specific genes. Although further studies are needed to demonstrate efficacy in in vivo animal models, FO may be used as an effective alternative agent for the prevention and treatment of osteoclastogenic bone diseases.
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Michalski MN, Williams BO. A quest for clarity in bone erosion: The role of sequestosome 1 in Paget's disease of bone. J Biol Chem 2019; 293:9542-9543. [PMID: 29907733 DOI: 10.1074/jbc.h118.003689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Alterations in the SQSTM1 gene are a putative cause of Paget's disease of bone, yet results are conflicting about how these mutations impact osteoclasts, the cell type believed to be the main pathological contributor. In this issue of JBC, Zach et al. provide important new evidence that the protein encoded by SQSTM1, p62, negatively regulates osteoclastogenesis and demonstrate that aged p62-deficient mice develop bone phenotypes similar to those of Paget's disease. These findings help to clarify the role of this important protein and present new opportunities to interrogate bone biology.
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Affiliation(s)
- Megan N Michalski
- From the Center for Cancer and Cell Biology, Van Andel Research Institute, Grand Rapids, Michigan 49503
| | - Bart O Williams
- From the Center for Cancer and Cell Biology, Van Andel Research Institute, Grand Rapids, Michigan 49503
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Yang XH, Yang K, An YL, Wang LB, Luo G, Hu XH. MicroRNA-705 regulates the differentiation of mouse mandible bone marrow mesenchymal stem cells. PeerJ 2019; 7:e6279. [PMID: 30648022 PMCID: PMC6330203 DOI: 10.7717/peerj.6279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Accepted: 11/12/2018] [Indexed: 12/12/2022] Open
Abstract
The craniofacial skeleton is the foundation of most stomatological treatments, including prosthodontics and maxillofacial surgery. Although histologically similar to the appendicular skeleton, the craniofacial skeleton manifests many unique properties in response to external stimuli and signals. However, the mandibular or maxillary bone marrow mesenchyme, which is the intrinsic foundation of the functions of craniofacial skeleton, has not been well studied, and its homeostasis mechanism remains elusive. Osteoporosis is a systemic disease that affects all skeletons and is characterized by bone mass loss. Osteoporotic bone marrow mesenchymal stem cells (BMMSCs) exhibit disturbed homeostasis and distorted lineage commitment. Many reports have shown that microRNAs (miRNAs) play important roles in regulating MSCs homeostasis. Here, to obtain a better understanding of mandibular bone marrow MSCs homeostasis, we isolated and cultured mandible marrow MSCs from mouse mandibles. Using miR-705 mimics and an inhibitor, we demonstrated that miR-705 played a vital role in shifting the mandibular MSCs lineage commitment in vitro. Utilizing an osteoporosis mouse model, we demonstrated that MSCs from ovariectomized (OVX) mouse mandibular bone marrow exhibited impaired osteogenic and excessive adipogenic differentiation. miR-705 was found overexpressed in OVX mandibular MSCs. The knock down of miR-705 in vitro partially attenuated the differentiation disorder of the OVX mandibular MSCs by upregulating the expression of osteogenic marker genes but suppressing adipogenic genes. Taken together, our findings provide a better understanding of the homeostasis mechanism of mandibular BMMSCs and a novel potential therapeutic target for treating mandibular osteoporosis.
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Affiliation(s)
- Xiao Hong Yang
- Department of Prosthetics, the Affiliated Stomatology Hospital of Zunyi Medical University, Zunyi Medical University, Zunyi, Guizhou, China
| | - Kun Yang
- Department of Periodontology, the Affiliated Stomatology Hospital of Zunyi Medical University, Zunyi Medical university, Zunyi, Guizhou, China
| | - Yu Lin An
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Li Bo Wang
- Department of Prosthetics, the Affiliated Stomatology Hospital of Zunyi Medical University, Zunyi Medical University, Zunyi, Guizhou, China.,Department of Stomatology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Guo Luo
- Department of Stomatology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Xiao Hua Hu
- Department of Oral and Maxillofacial Surgery, the Affiliated Stomatology Hospital of Zunyi Medical University, Zunyi, Guizhou, China
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Gene-environment interactions in Paget's disease of bone. Joint Bone Spine 2018; 86:373-380. [PMID: 30594595 DOI: 10.1016/j.jbspin.2018.12.007] [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: 10/08/2018] [Revised: 11/28/2018] [Accepted: 12/19/2018] [Indexed: 12/30/2022]
Abstract
OBJECTIVES This study explored the role of outdoor and indoor air pollutants in Paget's disease of bone (PDB). METHODS We performed a survey in 140 French-Canadian patients with PDB, including 39 carriers of p.Pro392Leu mutation (SQSTM1 gene) and 113 healthy not mutated controls. The survey covered outdoor air pollution near the residence and indoor air pollutants by focusing on heating fuels and exposure to tobacco smoke. In a subgroup of patients, urinary concentrations of 17 heavy metals and 11 polycyclic aromatic hydrocarbons were measured by mass spectrometry. In light of what we learned from the survey and urinary assays, we explored the in vitro effects of certain toxics on osteoclasts in PDB. We conducted in vitro monocytes differentiation from peripheral blood of more than 40 participants, whose osteoclasts were treated with or without the toxic. The morphology of osteoclasts, their bone resorption abilities, gene and protein expression levels, and cellular oxidative stress levels were assayed. RESULTS An inhibitory effect of cigarette smoke condensate and heavy metals was observed on morphology and bone resorption activity of patients' osteoclasts. SQSTM1 gene expression was upregulated in osteoclasts from patients with PDB versus healthy controls in presence of cadmium, and SQSTM1 protein expression was upregulated in presence of bismuth and tobacco smoke condensates, in particular in osteoclasts from carriers of the SQSTM1 mutation. Furthermore, high levels of oxidative stress in patients' osteoclasts were observed. CONCLUSIONS Our in vitro experiments suggest an interaction between SQSTM1 gene and exposure to cadmium and tobacco smoke condensates.
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Abstract
PURPOSE OF REVIEW The goal of this review is to highlight some of the considerations involved in creating animal models to study rare bone diseases and then to compare and contrast approaches to creating such models, focusing on the advantages and novel opportunities offered by the CRISPR-Cas system. RECENT FINDINGS Gene editing after creation of double-stranded breaks in chromosomal DNA is increasingly being used to modify animal genomes. Multiple tools can be used to create such breaks, with the newest ones being based on the bacterial adaptive immune system known as CRISPR/Cas. Advances in gene editing have increased the ease and speed, while reducing the cost, of creating novel animal models of disease. Gene editing has also expanded the number of animal species in which genetic modification can be performed. These changes have significantly increased the options for investigators seeking to model rare bone diseases in animals.
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Affiliation(s)
- Charles A O'Brien
- Division of Endocrinology, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
- Department of Orthopaedic Surgery, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
- Central Arkansas Veterans Healthcare System, Little Rock, AR, USA.
| | - Roy Morello
- Department of Orthopaedic Surgery, University of Arkansas for Medical Sciences, Little Rock, AR, USA
- Department of Physiology and Biophysics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
- Division of Genetics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
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Tzeng HE, Huang PH, Tsai CH, Tsay GJ, Lee YJ, Huang TJ, Lin TH, Chiu YM, Wu YY. Isosteviol Derivative Inhibits Osteoclast Differentiation and Ameliorates Ovariectomy-Induced Osteoporosis. Sci Rep 2018; 8:11190. [PMID: 30046042 PMCID: PMC6060097 DOI: 10.1038/s41598-018-29257-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 07/09/2018] [Indexed: 12/29/2022] Open
Abstract
NC-8 (ent-16-oxobeyeran-19-N-methylureido) is an isosteviol-derived analogue with multiple biological effects, including anti-inflammation and anti-bacterial activities and inhibition of HBV viral surface antigen gene expression. In this study, we explored the effects of NC-8 on the formation of osteoclasts from RAW 264.7 cells. We found that NC-8 exerts the novel effect of inhibiting osteoclast-like cell formation. Our experiments showed that RANKL-induced ERK, p38, and JNK phosphorylation were inhibited by NC-8. An ovariectomy-induced osteoporosis animal model was used to examine the protective effects of oral treatment with NC-8. Serum analysis was used to examine markers of osteoblasts, osteoclasts, and renal and hepatic function in rats. Micro CT scanning and histological analysis were used to measure bone loss in ovariectomized rats. Oral administration of NC-8 effectively decreased excess bone resorption and significantly antagonized trabecular bone loss in ovariectomized rats. Serum analysis of C-terminal telopeptide of type-I collagen, an osteoclast marker, also showed that NC-8 administration inhibited excess bone resorption. Furthermore, serum analysis showed that renal and liver function were not affected by these doses of NC-8 during long-term treatment. Our results demonstrate that NC-8 inhibits osteoclast differentiation and effectively ameliorates ovariectomy-induced osteoporosis.
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Affiliation(s)
- Huey-En Tzeng
- Taipei Cancer Center, Taipei Medical University, Taipei, Taiwan.,Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.,Department of Internal Medicine, Division of Hematology/Oncology, Taipei Medical University - Shuang Ho Hospital, Taipei, Taiwan
| | - Po-Hao Huang
- Department of Internal Medicine, School of Medicine, China Medical University Hospital and China Medical University, Taichung, Taiwan.,Division of Immunology and Rheumatology, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Chun-Hao Tsai
- Department of Orthopedics, School of Medicine, China Medical University Hospital and China Medical University, Taichung, Taiwan
| | - Gregory J Tsay
- Department of Internal Medicine, School of Medicine, China Medical University Hospital and China Medical University, Taichung, Taiwan.,Division of Immunology and Rheumatology, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Yi-Ju Lee
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan
| | - Tsurng-Juhn Huang
- Department of Biochemistry, China Medical University, Taichung, Taiwan
| | - Tzu-Hung Lin
- Material and Chemical Research Laboratories, Industrial Technology Research Institute, Chutung, Hsinchu County, Taiwan
| | - Ying-Ming Chiu
- Division of Allergy, Immunology & Rheumatology, Changhua Christian Hospital, Changhua, Taiwan.,Department of Nursing, College of Medicine & Nursing, Hungkuang University, Taichung, Taiwan
| | - Yi-Ying Wu
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung, Taiwan. .,Chinese Medicine Research Center, China Medical University, Taichung, Taiwan. .,Research Center for Chinese Herbal Medicine, China Medical University, Taichung, Taiwan.
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45
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Shavandi A, Bekhit AEDA, Saeedi P, Izadifar Z, Bekhit AA, Khademhosseini A. Polyphenol uses in biomaterials engineering. Biomaterials 2018; 167:91-106. [PMID: 29567389 PMCID: PMC5973878 DOI: 10.1016/j.biomaterials.2018.03.018] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 02/21/2018] [Accepted: 03/12/2018] [Indexed: 12/26/2022]
Abstract
Polyphenols are micronutrients obtained from diet that have been suggested to play an important role in health. The health benefits of polyphenols and their protective effects in food systems as antioxidant compounds are well known and have been extensively investigated. However, their functional roles as a "processing cofactor" in tissue engineering applications are less widely known. This review focuses on the functionality of polyphenols and their application in biomaterials. Polyphenols have been used to stabilize collagen and to improve its resistance to degradation in biological systems. Therefore, they have been proposed to improve the performance of biomedical devices used in cardiovascular systems by improving the mechanical properties of grafted heart valves, enhancing microcirculation through the relaxation of the arterial walls and improving the capillary blood flow and pressure resistance. Polyphenols have been found to stimulate bone formation, mineralization, as well as the proliferation, differentiation, and the survival of osteoblasts. These effects are brought about by the stimulatory effect of polyphenols on osteoblast cells and their protective effect against oxidative stress and inflammatory cytokines. In addition, polyphenols inhibit the differentiation of the osteoclast cells. Collectively, these actions lead to promote bone formation and to reduce bone resorption, respectively. Moreover, polyphenols can increase the cross-linking of dentine and hence its mechanical stability. Overall, polyphenols provide interesting properties that will stimulate further research in the bioengineering field.
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Affiliation(s)
- Amin Shavandi
- Department of Food Science, University of Otago, Dunedin, New Zealand.
| | | | - Pouya Saeedi
- Department of Human Nutrition, University of Otago, Dunedin, New Zealand
| | - Zohreh Izadifar
- The Lunenfeld-Tanenbaum Research Institute, University of Toronto, Toronto, Canada
| | - Adnan A Bekhit
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Alexandria, Alexandria, Egypt; Pharmacy Program, Allied Health Department, College of Health Sciences, University of Bahrain, P.O. Box 32038, Kingdom of Bahrain
| | - Ali Khademhosseini
- Department of Bioengineering, Department of Chemical and Biomolecular Engineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA, USA; Department of Radiology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA; Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA, USA; California NanoSystems Institute (CNSI), University of California-Los Angeles, Los Angeles, CA, USA.
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Cirino AL, Lakdawala NK, McDonough B, Conner L, Adler D, Weinfeld M, O'Gara P, Rehm HL, Machini K, Lebo M, Blout C, Green RC, MacRae CA, Seidman CE, Ho CY. A Comparison of Whole Genome Sequencing to Multigene Panel Testing in Hypertrophic Cardiomyopathy Patients. ACTA ACUST UNITED AC 2018; 10:CIRCGENETICS.117.001768. [PMID: 29030401 DOI: 10.1161/circgenetics.117.001768] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 08/31/2017] [Indexed: 12/11/2022]
Abstract
BACKGROUND As DNA sequencing costs decline, genetic testing options have expanded. Whole exome sequencing and whole genome sequencing (WGS) are entering clinical use, posing questions about their incremental value compared with disease-specific multigene panels that have been the cornerstone of genetic testing. METHODS AND RESULTS Forty-one patients with hypertrophic cardiomyopathy who had undergone targeted hypertrophic cardiomyopathy genetic testing (either multigene panel or familial variant test) were recruited into the MedSeq Project, a clinical trial of WGS. Results from panel genetic testing and WGS were compared. In 20 of 41 participants, panel genetic testing identified variants classified as pathogenic, likely pathogenic, or uncertain significance. WGS identified 19 of these 20 variants, but the variant detection algorithm missed a pathogenic 18 bp duplication in myosin binding protein C (MYBPC3) because of low coverage. In 3 individuals, WGS identified variants in genes implicated in cardiomyopathy but not included in prior panel testing: a pathogenic protein tyrosine phosphatase, non-receptor type 11 (PTPN11) variant and variants of uncertain significance in integrin-linked kinase (ILK) and filamin-C (FLNC). WGS also identified 84 secondary findings (mean=2 per person, range=0-6), which mostly defined carrier status for recessive conditions. CONCLUSIONS WGS detected nearly all variants identified on panel testing, provided 1 new diagnostic finding, and allowed interrogation of posited disease genes. Several variants of uncertain clinical use and numerous secondary genetic findings were also identified. Whereas panel testing and WGS provided similar diagnostic yield, WGS offers the advantage of reanalysis over time to incorporate advances in knowledge, but requires expertise in genomic interpretation to appropriately incorporate WGS into clinical care. CLINICAL TRIAL REGISTRATION URL: https://clinicaltrials.gov. Unique identifier: NCT01736566.
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Affiliation(s)
- Allison L Cirino
- From the Cardiovascular Division (A.L.C., N.K.L., B.M., D.A., M.W., P.O., C.A.M., C.E.S., C.Y.H.), Department of Pathology (H.L.R.), and Division of Genetics (C.B., R.C.G., C.A.M.), Brigham and Women's Hospital, Boston, MA; Harvard Medical School, Boston, MA (N.K.L., B.M., D.A., M.W., P.O., H.L.R., R.C.G., C.A.M., C.E.S., C.Y.H.); Albany Medical College, NY (L.C.); Broad Institute of Harvard and MIT, Cambridge, MA (H.L.R., R.C.G., C.A.M.); Laboratory for Molecular Medicine (H.L.R., K.M., M.L.), Leadership Team (R.C.G.), Partners HealthCare Personalized Medicine, Cambridge, MA; and Howard Hughes Medical Institute, Chevy Chase, MD (C.E.S.)
| | - Neal K Lakdawala
- From the Cardiovascular Division (A.L.C., N.K.L., B.M., D.A., M.W., P.O., C.A.M., C.E.S., C.Y.H.), Department of Pathology (H.L.R.), and Division of Genetics (C.B., R.C.G., C.A.M.), Brigham and Women's Hospital, Boston, MA; Harvard Medical School, Boston, MA (N.K.L., B.M., D.A., M.W., P.O., H.L.R., R.C.G., C.A.M., C.E.S., C.Y.H.); Albany Medical College, NY (L.C.); Broad Institute of Harvard and MIT, Cambridge, MA (H.L.R., R.C.G., C.A.M.); Laboratory for Molecular Medicine (H.L.R., K.M., M.L.), Leadership Team (R.C.G.), Partners HealthCare Personalized Medicine, Cambridge, MA; and Howard Hughes Medical Institute, Chevy Chase, MD (C.E.S.)
| | - Barbara McDonough
- From the Cardiovascular Division (A.L.C., N.K.L., B.M., D.A., M.W., P.O., C.A.M., C.E.S., C.Y.H.), Department of Pathology (H.L.R.), and Division of Genetics (C.B., R.C.G., C.A.M.), Brigham and Women's Hospital, Boston, MA; Harvard Medical School, Boston, MA (N.K.L., B.M., D.A., M.W., P.O., H.L.R., R.C.G., C.A.M., C.E.S., C.Y.H.); Albany Medical College, NY (L.C.); Broad Institute of Harvard and MIT, Cambridge, MA (H.L.R., R.C.G., C.A.M.); Laboratory for Molecular Medicine (H.L.R., K.M., M.L.), Leadership Team (R.C.G.), Partners HealthCare Personalized Medicine, Cambridge, MA; and Howard Hughes Medical Institute, Chevy Chase, MD (C.E.S.)
| | - Lauren Conner
- From the Cardiovascular Division (A.L.C., N.K.L., B.M., D.A., M.W., P.O., C.A.M., C.E.S., C.Y.H.), Department of Pathology (H.L.R.), and Division of Genetics (C.B., R.C.G., C.A.M.), Brigham and Women's Hospital, Boston, MA; Harvard Medical School, Boston, MA (N.K.L., B.M., D.A., M.W., P.O., H.L.R., R.C.G., C.A.M., C.E.S., C.Y.H.); Albany Medical College, NY (L.C.); Broad Institute of Harvard and MIT, Cambridge, MA (H.L.R., R.C.G., C.A.M.); Laboratory for Molecular Medicine (H.L.R., K.M., M.L.), Leadership Team (R.C.G.), Partners HealthCare Personalized Medicine, Cambridge, MA; and Howard Hughes Medical Institute, Chevy Chase, MD (C.E.S.)
| | - Dale Adler
- From the Cardiovascular Division (A.L.C., N.K.L., B.M., D.A., M.W., P.O., C.A.M., C.E.S., C.Y.H.), Department of Pathology (H.L.R.), and Division of Genetics (C.B., R.C.G., C.A.M.), Brigham and Women's Hospital, Boston, MA; Harvard Medical School, Boston, MA (N.K.L., B.M., D.A., M.W., P.O., H.L.R., R.C.G., C.A.M., C.E.S., C.Y.H.); Albany Medical College, NY (L.C.); Broad Institute of Harvard and MIT, Cambridge, MA (H.L.R., R.C.G., C.A.M.); Laboratory for Molecular Medicine (H.L.R., K.M., M.L.), Leadership Team (R.C.G.), Partners HealthCare Personalized Medicine, Cambridge, MA; and Howard Hughes Medical Institute, Chevy Chase, MD (C.E.S.)
| | - Mark Weinfeld
- From the Cardiovascular Division (A.L.C., N.K.L., B.M., D.A., M.W., P.O., C.A.M., C.E.S., C.Y.H.), Department of Pathology (H.L.R.), and Division of Genetics (C.B., R.C.G., C.A.M.), Brigham and Women's Hospital, Boston, MA; Harvard Medical School, Boston, MA (N.K.L., B.M., D.A., M.W., P.O., H.L.R., R.C.G., C.A.M., C.E.S., C.Y.H.); Albany Medical College, NY (L.C.); Broad Institute of Harvard and MIT, Cambridge, MA (H.L.R., R.C.G., C.A.M.); Laboratory for Molecular Medicine (H.L.R., K.M., M.L.), Leadership Team (R.C.G.), Partners HealthCare Personalized Medicine, Cambridge, MA; and Howard Hughes Medical Institute, Chevy Chase, MD (C.E.S.)
| | - Patrick O'Gara
- From the Cardiovascular Division (A.L.C., N.K.L., B.M., D.A., M.W., P.O., C.A.M., C.E.S., C.Y.H.), Department of Pathology (H.L.R.), and Division of Genetics (C.B., R.C.G., C.A.M.), Brigham and Women's Hospital, Boston, MA; Harvard Medical School, Boston, MA (N.K.L., B.M., D.A., M.W., P.O., H.L.R., R.C.G., C.A.M., C.E.S., C.Y.H.); Albany Medical College, NY (L.C.); Broad Institute of Harvard and MIT, Cambridge, MA (H.L.R., R.C.G., C.A.M.); Laboratory for Molecular Medicine (H.L.R., K.M., M.L.), Leadership Team (R.C.G.), Partners HealthCare Personalized Medicine, Cambridge, MA; and Howard Hughes Medical Institute, Chevy Chase, MD (C.E.S.)
| | - Heidi L Rehm
- From the Cardiovascular Division (A.L.C., N.K.L., B.M., D.A., M.W., P.O., C.A.M., C.E.S., C.Y.H.), Department of Pathology (H.L.R.), and Division of Genetics (C.B., R.C.G., C.A.M.), Brigham and Women's Hospital, Boston, MA; Harvard Medical School, Boston, MA (N.K.L., B.M., D.A., M.W., P.O., H.L.R., R.C.G., C.A.M., C.E.S., C.Y.H.); Albany Medical College, NY (L.C.); Broad Institute of Harvard and MIT, Cambridge, MA (H.L.R., R.C.G., C.A.M.); Laboratory for Molecular Medicine (H.L.R., K.M., M.L.), Leadership Team (R.C.G.), Partners HealthCare Personalized Medicine, Cambridge, MA; and Howard Hughes Medical Institute, Chevy Chase, MD (C.E.S.)
| | - Kalotina Machini
- From the Cardiovascular Division (A.L.C., N.K.L., B.M., D.A., M.W., P.O., C.A.M., C.E.S., C.Y.H.), Department of Pathology (H.L.R.), and Division of Genetics (C.B., R.C.G., C.A.M.), Brigham and Women's Hospital, Boston, MA; Harvard Medical School, Boston, MA (N.K.L., B.M., D.A., M.W., P.O., H.L.R., R.C.G., C.A.M., C.E.S., C.Y.H.); Albany Medical College, NY (L.C.); Broad Institute of Harvard and MIT, Cambridge, MA (H.L.R., R.C.G., C.A.M.); Laboratory for Molecular Medicine (H.L.R., K.M., M.L.), Leadership Team (R.C.G.), Partners HealthCare Personalized Medicine, Cambridge, MA; and Howard Hughes Medical Institute, Chevy Chase, MD (C.E.S.)
| | - Matthew Lebo
- From the Cardiovascular Division (A.L.C., N.K.L., B.M., D.A., M.W., P.O., C.A.M., C.E.S., C.Y.H.), Department of Pathology (H.L.R.), and Division of Genetics (C.B., R.C.G., C.A.M.), Brigham and Women's Hospital, Boston, MA; Harvard Medical School, Boston, MA (N.K.L., B.M., D.A., M.W., P.O., H.L.R., R.C.G., C.A.M., C.E.S., C.Y.H.); Albany Medical College, NY (L.C.); Broad Institute of Harvard and MIT, Cambridge, MA (H.L.R., R.C.G., C.A.M.); Laboratory for Molecular Medicine (H.L.R., K.M., M.L.), Leadership Team (R.C.G.), Partners HealthCare Personalized Medicine, Cambridge, MA; and Howard Hughes Medical Institute, Chevy Chase, MD (C.E.S.)
| | - Carrie Blout
- From the Cardiovascular Division (A.L.C., N.K.L., B.M., D.A., M.W., P.O., C.A.M., C.E.S., C.Y.H.), Department of Pathology (H.L.R.), and Division of Genetics (C.B., R.C.G., C.A.M.), Brigham and Women's Hospital, Boston, MA; Harvard Medical School, Boston, MA (N.K.L., B.M., D.A., M.W., P.O., H.L.R., R.C.G., C.A.M., C.E.S., C.Y.H.); Albany Medical College, NY (L.C.); Broad Institute of Harvard and MIT, Cambridge, MA (H.L.R., R.C.G., C.A.M.); Laboratory for Molecular Medicine (H.L.R., K.M., M.L.), Leadership Team (R.C.G.), Partners HealthCare Personalized Medicine, Cambridge, MA; and Howard Hughes Medical Institute, Chevy Chase, MD (C.E.S.)
| | - Robert C Green
- From the Cardiovascular Division (A.L.C., N.K.L., B.M., D.A., M.W., P.O., C.A.M., C.E.S., C.Y.H.), Department of Pathology (H.L.R.), and Division of Genetics (C.B., R.C.G., C.A.M.), Brigham and Women's Hospital, Boston, MA; Harvard Medical School, Boston, MA (N.K.L., B.M., D.A., M.W., P.O., H.L.R., R.C.G., C.A.M., C.E.S., C.Y.H.); Albany Medical College, NY (L.C.); Broad Institute of Harvard and MIT, Cambridge, MA (H.L.R., R.C.G., C.A.M.); Laboratory for Molecular Medicine (H.L.R., K.M., M.L.), Leadership Team (R.C.G.), Partners HealthCare Personalized Medicine, Cambridge, MA; and Howard Hughes Medical Institute, Chevy Chase, MD (C.E.S.)
| | - Calum A MacRae
- From the Cardiovascular Division (A.L.C., N.K.L., B.M., D.A., M.W., P.O., C.A.M., C.E.S., C.Y.H.), Department of Pathology (H.L.R.), and Division of Genetics (C.B., R.C.G., C.A.M.), Brigham and Women's Hospital, Boston, MA; Harvard Medical School, Boston, MA (N.K.L., B.M., D.A., M.W., P.O., H.L.R., R.C.G., C.A.M., C.E.S., C.Y.H.); Albany Medical College, NY (L.C.); Broad Institute of Harvard and MIT, Cambridge, MA (H.L.R., R.C.G., C.A.M.); Laboratory for Molecular Medicine (H.L.R., K.M., M.L.), Leadership Team (R.C.G.), Partners HealthCare Personalized Medicine, Cambridge, MA; and Howard Hughes Medical Institute, Chevy Chase, MD (C.E.S.)
| | - Christine E Seidman
- From the Cardiovascular Division (A.L.C., N.K.L., B.M., D.A., M.W., P.O., C.A.M., C.E.S., C.Y.H.), Department of Pathology (H.L.R.), and Division of Genetics (C.B., R.C.G., C.A.M.), Brigham and Women's Hospital, Boston, MA; Harvard Medical School, Boston, MA (N.K.L., B.M., D.A., M.W., P.O., H.L.R., R.C.G., C.A.M., C.E.S., C.Y.H.); Albany Medical College, NY (L.C.); Broad Institute of Harvard and MIT, Cambridge, MA (H.L.R., R.C.G., C.A.M.); Laboratory for Molecular Medicine (H.L.R., K.M., M.L.), Leadership Team (R.C.G.), Partners HealthCare Personalized Medicine, Cambridge, MA; and Howard Hughes Medical Institute, Chevy Chase, MD (C.E.S.)
| | - Carolyn Y Ho
- From the Cardiovascular Division (A.L.C., N.K.L., B.M., D.A., M.W., P.O., C.A.M., C.E.S., C.Y.H.), Department of Pathology (H.L.R.), and Division of Genetics (C.B., R.C.G., C.A.M.), Brigham and Women's Hospital, Boston, MA; Harvard Medical School, Boston, MA (N.K.L., B.M., D.A., M.W., P.O., H.L.R., R.C.G., C.A.M., C.E.S., C.Y.H.); Albany Medical College, NY (L.C.); Broad Institute of Harvard and MIT, Cambridge, MA (H.L.R., R.C.G., C.A.M.); Laboratory for Molecular Medicine (H.L.R., K.M., M.L.), Leadership Team (R.C.G.), Partners HealthCare Personalized Medicine, Cambridge, MA; and Howard Hughes Medical Institute, Chevy Chase, MD (C.E.S.).
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Tsai CH, Hsu MH, Huang PH, Hsieh CT, Chiu YM, Shieh DC, Lee YJ, Tsay GJ, Wu YY. A paeonol derivative, YPH-PA3 promotes the differentiation of monocyte/macrophage lineage precursor cells into osteoblasts and enhances their autophagy. Eur J Pharmacol 2018; 832:104-113. [PMID: 29782859 DOI: 10.1016/j.ejphar.2018.05.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 05/16/2018] [Accepted: 05/17/2018] [Indexed: 12/12/2022]
Abstract
Previous studies have indicated that paeonol inhibits RANKL-induced osteoclastogenesis by inhibiting the ERK, p38, and NF-κB pathway. We modified paeonol to form a new compound, YPH-PA3, and found that it promoted osteoclastogenesis rather than inhibited it the way paeonol does. The aim of this study is to investigate the mechanisms involved in YPH-PA3-promoted osteoclastogenesis. YPH-PA3-promoted differentiation of RAW264.7 cells (human monocytes) into osteoclasts is activated through ERK/p38/JNK phosphorylation, affecting c-FOS, NF-κB, and NFATc2. Real-time quantitative PCR and western blot revealed an increased expression of autophagy-related markers during YPH-PA3-induced osteoclastogenesis. We also demonstrated the relationship between p62/LC3 localization and F-actin ring formation by double-labeling immunofluorescence. Knockdown of p62 small-interfering RNA (siRNA) attenuated YPH-PA3-induced expression of autophagy-related genes. Our study results indicated that p62 may play a role in YPH-PA3-induced autophagy and osteoclastogenesis, which may help to develop a novel therapeutic strategy against osteoclastogenesis-related diseases.
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Affiliation(s)
- Chun-Hao Tsai
- Department of Orthopedics, School of Medicine, China Medical University Hospital and China Medical University, Taichung, Taiwan
| | - Ming-Hua Hsu
- Department of Chemistry, National Changhua University of Education, Changhua, Taiwan
| | - Po-Hao Huang
- Department of Internal Medicine, School of Medicine, China Medical University Hospital and China Medical University, Taichung, Taiwan
| | - Chin-Tung Hsieh
- Department of Pediatrics, Lo-Hsu Medical Foundation, Lotung Poh-Ai Hospital, I-Lan, Taiwan
| | - Ying-Ming Chiu
- Division of Allergy, Immunology & Rheumatology, Changhua Christian Hospital, Changhua, Taiwan; Department of Nursing, College of Medicine & Nursing, Hung Kuang University, Taichung, Taiwan
| | - Dong-Chen Shieh
- Department of Nursing, College of Medicine & Nursing, Hung Kuang University, Taichung, Taiwan
| | - Yi-Ju Lee
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan
| | - Gregory J Tsay
- Department of Internal Medicine, School of Medicine, China Medical University Hospital and China Medical University, Taichung, Taiwan; Division of Immunology and Rheumatology, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Yi-Ying Wu
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung, Taiwan; Chinese Medicine Research Center, China Medical University, Taichung, Taiwan.
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Kajikawa S, Taguchi Y, Hayata T, Ezura Y, Ueta R, Arimura S, Inoue JI, Noda M, Yamanashi Y. Dok-3 and Dok-1/-2 adaptors play distinctive roles in cell fusion and proliferation during osteoclastogenesis and cooperatively protect mice from osteopenia. Biochem Biophys Res Commun 2018; 498:967-974. [PMID: 29548825 DOI: 10.1016/j.bbrc.2018.03.090] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 03/13/2018] [Indexed: 10/17/2022]
Abstract
Bone mass is determined by coordinated acts of osteoblasts and osteoclasts, which control bone formation and resorption, respectively. Osteoclasts are multinucleated, macrophage/monocyte lineage cells from bone marrow. The Dok-family adaptors Dok-1, Dok-2 and Dok-3 are expressed in the macrophage/monocyte lineage and negatively regulate many signaling pathways, implying roles in osteoclastogenesis. Indeed, mice lacking Dok-1 and Dok-2, the closest homologues with redundant functions, develop osteopenia with increased osteoclast counts compared to the wild-type controls. Here, we demonstrate that Dok-3 knockout (KO) mice also develop osteopenia. However, Dok-3 KO, but not Dok-1/-2 double-KO (DKO), mice develop larger osteoclasts within the normal cell-count range, suggesting a distinctive role for Dok-3. Indeed, Dok-3 KO, but not Dok-1/-2 DKO, bone marrow-derived cells (BMDCs) generated larger osteoclasts with more nuclei due to augmented cell-to-cell fusion in vitro. In addition, while Dok-1/-2 DKO BMDCs generated more osteoclasts, Dok-1/-2/-3 triple-KO (TKO) BMDCs generated osteoclasts increased in both number and size. Furthermore, Dok-1/-2/-3 TKO mice showed the combined effects of Dok-3 and Dok-1/-2 deficiency: severe osteopenia with more and larger osteoclasts. Together, our findings demonstrate that Dok-3 and Dok-1/-2 play distinctive but cooperative roles in osteoclastogenesis and protect mice from osteopenia, providing physiological and pathophysiological insight into bone homeostasis.
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Affiliation(s)
- Shuhei Kajikawa
- Division of Genetics, The Institute of Medical Science, The University of Tokyo, Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan
| | - Yuu Taguchi
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan
| | - Tadayoshi Hayata
- Department of Molecular Pharmacology, Medical Research Institute, Tokyo Medical and Dental University, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Yoichi Ezura
- Department of Molecular Pharmacology, Medical Research Institute, Tokyo Medical and Dental University, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Ryo Ueta
- Division of Genetics, The Institute of Medical Science, The University of Tokyo, Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan
| | - Sumimasa Arimura
- Division of Genetics, The Institute of Medical Science, The University of Tokyo, Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan
| | - Jun-Ichiro Inoue
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan
| | - Masaki Noda
- Department of Molecular Pharmacology, Medical Research Institute, Tokyo Medical and Dental University, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Yuji Yamanashi
- Division of Genetics, The Institute of Medical Science, The University of Tokyo, Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan.
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Zach F, Polzer F, Mueller A, Gessner A. p62/sequestosome 1 deficiency accelerates osteoclastogenesis in vitro and leads to Paget's disease-like bone phenotypes in mice. J Biol Chem 2018; 293:9530-9541. [PMID: 29555685 DOI: 10.1074/jbc.ra118.002449] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 03/09/2018] [Indexed: 11/06/2022] Open
Abstract
The sequestosome 1 gene encodes the p62 protein and is the major genetic risk factor associated with Paget's disease of bone. In 2004, p62 was reported to up-regulate osteoclast differentiation by activating the transcription factors Nfatc1 and NF-κB. Here, we characterized the osteoclastogenic potential of murine p62-/--derived cells compared with WT cells. Our data confirmed previous findings indicating that p62 is induced during murine osteoclast differentiation. Surprisingly, an indispensable role for p62 in in vitro osteoclast differentiation was not reproducible because p62-deficient osteoclasts exhibited robust activation of Nfatc1, NF-κB, and osteoclast marker enzymes. Thus, we concluded that in vitro osteoclast differentiation is not negatively influenced by knocking out p62. On the contrary, our results revealed that p62 deficiency accelerates osteoclastogenesis. Differentiation potential, multinucleation status, and soluble receptor activator of NF-κB ligand (sRANKL) sensitivity were significantly elevated in p62-deficient, murine bone marrow-derived stem cells. Moreover, femur ultrastructures visualized by micro-computed tomography revealed pronounced accumulation of adipocytes and trabecular bone material in distal femora of obese p62-/- mice. Increased tartrate-resistant acid phosphatase activity, along with increased trabecular bone and accumulation of adipocytes, was confirmed in both paraffin-embedded decalcified and methyl methacrylate-embedded nondecalcified bones from p62-/- mice. Of note, Paget's disease-like osteolytic lesions and increased levels of the bone turnover markers CTX-I and PINP were also observed in the p62-/- mice. Our results indicate that p62 predominantly suppresses murine in vitro osteoclast differentiation and highlight previously undetected Paget's disease-like phenotypes in p62-/- mice in vivo.
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Affiliation(s)
- Frank Zach
- From the Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Franziska Polzer
- From the Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Alexandra Mueller
- From the Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, 93053 Regensburg, Germany
| | - André Gessner
- From the Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, 93053 Regensburg, Germany
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Wu QY, Li X, Miao ZN, Ye JX, Wang B, Zhang F, Xu RS, Jiang DL, Zhao MD, Yuan FL. Long Non-coding RNAs: A New Regulatory Code for Osteoporosis. Front Endocrinol (Lausanne) 2018; 9:587. [PMID: 30349507 PMCID: PMC6186991 DOI: 10.3389/fendo.2018.00587] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 09/17/2018] [Indexed: 12/14/2022] Open
Abstract
Osteoporosis is a metabolic bone disease characterized by a decrease in bone mass and degradation of the bone microstructure, which increases bone fragility and fracture risk. However, the molecular mechanisms of osteoporosis remain unclear. Long non-coding RNAs (lncRNAs) have become important epigenetic regulators controlling the expression of genes and affecting multiple biological processes. Accumulating evidence of the involvement of lncRNAs in bone remolding has increased understanding of the molecular mechanisms underlying osteoporosis. This review aims to summarize recent progress in the elucidation of the role of lncRNAs in bone remodeling, and how it contributes to osteoblast and osteoclast function. This knowledge will facilitate the understanding of lncRNA roles in bone biology and shed new light on the modulation and potential treatment of osteoporosis.
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Affiliation(s)
- Qian-Yuan Wu
- Third Affiliated Hospital of Nantong University, Nantong, China
| | - Xia Li
- Third Affiliated Hospital of Nantong University, Nantong, China
- *Correspondence: Xia Li
| | - Zong-Ning Miao
- Third Affiliated Hospital of Nantong University, Nantong, China
| | - Jun-Xing Ye
- Third Affiliated Hospital of Nantong University, Nantong, China
| | - Bei Wang
- Third Affiliated Hospital of Nantong University, Nantong, China
| | - Feng Zhang
- Third Affiliated Hospital of Nantong University, Nantong, China
| | - Rui-Sheng Xu
- Third Affiliated Hospital of Nantong University, Nantong, China
| | - Dong-Lin Jiang
- Third Affiliated Hospital of Nantong University, Nantong, China
| | | | - Feng Lai Yuan
- Third Affiliated Hospital of Nantong University, Nantong, China
- Feng Lai Yuan
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