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Zhao X, Liu S, Yang Z, Li Y. Molecular mechanisms and genetic factors contributing to the developmental dysplasia of the hip. Front Genet 2024; 15:1413500. [PMID: 39156961 PMCID: PMC11327038 DOI: 10.3389/fgene.2024.1413500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Accepted: 07/16/2024] [Indexed: 08/20/2024] Open
Abstract
The most prevalent hip disease in neonates is developmental dysplasia of the hip (DDH). A timely and accurate diagnosis is required to provide the most effective treatment for pediatric patients with DDH. Heredity and gene variation have been the subject of increased attention and research worldwide as one of the factors contributing to the pathogenesis of DDH. Genome-wide association studies (GWAS), genome-wide linkage analyses (GWLA), and exome sequencing (ES) have identified variants in numerous genes and single-nucleotide polymorphisms (SNPs) as being associated with susceptibility to DDH in sporadic and DDH family patients. Furthermore, the DDH phenotype can be observed in animal models that exhibit susceptibility genes or loci, including variants in CX3CR1, KANSL1, and GDF5. The dentification of noncoding RNAs and de novo gene variants in patients with DDH-related syndrome has enhanced our understanding of the genes implicated in DDH. This article reviews the most recent molecular mechanisms and genetic factors that contribute to DDH.
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Affiliation(s)
- Xiaoming Zhao
- Department of Pediatric Orthopaedics, Shenyang Orthopaedic Hospital, Shenyang, China
| | - Shuai Liu
- College of Police Dog Technology, Criminal Investigation Police University of China, Shenyang, China
| | - Zhonghua Yang
- Department of Pediatric Surgery, Shengjing Hospital of China Medical University, Shenyang, China
- Key Laboratory of Health Ministry for Congenital Malformation, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yong Li
- Department of Pediatric Surgery, Shengjing Hospital of China Medical University, Shenyang, China
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2
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Han Y, Byun J, Zhu C, Sun R, Roh JY, Cordell HJ, Lee HS, Shaw VR, Kang SW, Razjouyan J, Cooley MA, Hassan MM, Siminovitch KA, Folseraas T, Ellinghaus D, Bergquist A, Rushbrook SM, Franke A, Karlsen TH, Lazaridis KN, McGlynn KA, Roberts LR, Amos CI. Multitrait genome-wide analyses identify new susceptibility loci and candidate drugs to primary sclerosing cholangitis. Nat Commun 2023; 14:1069. [PMID: 36828809 PMCID: PMC9958016 DOI: 10.1038/s41467-023-36678-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 02/10/2023] [Indexed: 02/26/2023] Open
Abstract
Primary sclerosing cholangitis (PSC) is a rare autoimmune bile duct disease that is strongly associated with immune-mediated disorders. In this study, we implemented multitrait joint analyses to genome-wide association summary statistics of PSC and numerous clinical and epidemiological traits to estimate the genetic contribution of each trait and genetic correlations between traits and to identify new lead PSC risk-associated loci. We identified seven new loci that have not been previously reported and one new independent lead variant in the previously reported locus. Functional annotation and fine-mapping nominated several potential susceptibility genes such as MANBA and IRF5. Network-based in silico drug efficacy screening provided candidate agents for further study of pharmacological effect in PSC.
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Affiliation(s)
- Younghun Han
- Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, TX, USA
- Section of Epidemiology and Population Sciences, Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Jinyoung Byun
- Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, TX, USA
- Section of Epidemiology and Population Sciences, Department of Medicine, Baylor College of Medicine, Houston, TX, USA
- Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | - Catherine Zhu
- Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, TX, USA
| | - Ryan Sun
- Department of Biostatistics, University of Texas, M.D. Anderson Cancer Center, Houston, TX, USA
| | - Julia Y Roh
- Department of Pharmacy, Ochsner Health, New Orleans, LA, USA
| | - Heather J Cordell
- Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Hyun-Sung Lee
- David J. Sugarbaker Division of Thoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX, USA
| | - Vikram R Shaw
- Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, TX, USA
| | - Sung Wook Kang
- David J. Sugarbaker Division of Thoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX, USA
| | - Javad Razjouyan
- VA HSR&D, Center for Innovations in Quality, Effectiveness and Safety, Michael E. DeBakey VA Medical Center, Houston, TX, USA
- Big Data Scientist Training Enhancement Program (BD-STEP), VA Office of Research and Development, Washington, DC, USA
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA
- VA Quality Scholars Coordinating Center, IQuESt, Michael E. DeBakey VA Medical Center, Houston, TX, USA
| | - Matthew A Cooley
- Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic, Rochester, MN, USA
| | - Manal M Hassan
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Katherine A Siminovitch
- Departments of Medicine, Immunology and Medical Sciences, University of Toronto, Toronto, Ontario, Canada
- Mount Sinai Hospital, Lunenfeld-Tanenbaum Research Institute and Toronto General Research Institute, Toronto, Ontario, Canada
| | - Trine Folseraas
- Norwegian PSC Research Center, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - David Ellinghaus
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Annika Bergquist
- Department of Medicine Huddinge, Unit of Gastroenterology and Rheumatology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Simon M Rushbrook
- Department of Gastroenterology, Norfolk and Norwich University Hospital, Norwich, United Kingdom
- Norwich Medical School, University of East Anglia, Norfolk, United Kingdom
| | - Andre Franke
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Tom H Karlsen
- Oslo University Hospital Rikshospitalet and University of Oslo, Oslo, Norway
| | - Konstantinos N Lazaridis
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Katherine A McGlynn
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - Lewis R Roberts
- Oslo University Hospital Rikshospitalet and University of Oslo, Oslo, Norway
| | - Christopher I Amos
- Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, TX, USA.
- Section of Epidemiology and Population Sciences, Department of Medicine, Baylor College of Medicine, Houston, TX, USA.
- Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA.
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3
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Perkins RS, Singh R, Abell AN, Krum SA, Miranda-Carboni GA. The role of WNT10B in physiology and disease: A 10-year update. Front Cell Dev Biol 2023; 11:1120365. [PMID: 36814601 PMCID: PMC9939717 DOI: 10.3389/fcell.2023.1120365] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 01/16/2023] [Indexed: 02/09/2023] Open
Abstract
WNT10B, a member of the WNT family of secreted glycoproteins, activates the WNT/β-catenin signaling cascade to control proliferation, stemness, pluripotency, and cell fate decisions. WNT10B plays roles in many tissues, including bone, adipocytes, skin, hair, muscle, placenta, and the immune system. Aberrant WNT10B signaling leads to several diseases, such as osteoporosis, obesity, split-hand/foot malformation (SHFM), fibrosis, dental anomalies, and cancer. We reviewed WNT10B a decade ago, and here we provide a comprehensive update to the field. Novel research on WNT10B has expanded to many more tissues and diseases. WNT10B polymorphisms and mutations correlate with many phenotypes, including bone mineral density, obesity, pig litter size, dog elbow dysplasia, and cow body size. In addition, the field has focused on the regulation of WNT10B using upstream mediators, such as microRNAs (miRNAs) and long non-coding RNAs (lncRNAs). We also discussed the therapeutic implications of WNT10B regulation. In summary, research conducted during 2012-2022 revealed several new, diverse functions in the role of WNT10B in physiology and disease.
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Affiliation(s)
- Rachel S. Perkins
- Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Rishika Singh
- College of Medicine, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Amy N. Abell
- Department of Biological Sciences, University of Memphis, Memphis, TN, United States
| | - Susan A. Krum
- Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN, United States,Center for Cancer Research, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Gustavo A. Miranda-Carboni
- Center for Cancer Research, University of Tennessee Health Science Center, Memphis, TN, United States,Department of Medicine, Division of Hematology and Oncology, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, United States,*Correspondence: Gustavo A. Miranda-Carboni,
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4
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Ouyang Z, Kang D, Li K, Liang G, Liu Z, Mai Q, Chen Q, Yao C, Wei R, Tan X, Bai X, Huang B, Li Q. DEPTOR exacerbates bone-fat imbalance in osteoporosis by transcriptionally modulating BMSC differentiation. Biomed Pharmacother 2022; 151:113164. [PMID: 35609371 DOI: 10.1016/j.biopha.2022.113164] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 05/17/2022] [Accepted: 05/17/2022] [Indexed: 11/28/2022] Open
Abstract
Bone marrow-derived mesenchymal stem cells (BMSCs) tend to differentiate into adipocytes rather than osteoblasts in osteoporosis and other pathological conditions. Understanding the mechanisms underlying the adipo-osteogenic imbalance greatly contributes to the ability to induce specific MSC differentiation for clinical applications. This study aimed to explore whether DEP-domain containing mTOR-interacting protein (DEPTOR) regulated MSC fate and bone-fat switch, which was indicated to be a key player in bone homeostasis. We found that DEPTOR expression decreased during the osteogenesis of BMSCs but increased during adipogenesis and the shift of cell lineage commitment of BMSCs to adipocytes in mice with osteoporosis. DEPTOR facilitated adipogenic differentiation while preventing the osteogenic differentiation of BMSCs. Deptor ablation in BMSCs alleviated bone loss and reduced marrow fat accumulation in mice with osteoporosis. Mechanistically, DEPTOR binds transcriptional coactivator with a PDZ-binding motif (TAZ) and inhibits its transactivation properties, thereby repressing the transcriptional activity of RUNX2 and elevating gene transcription by peroxisome-proliferator-activated receptor-gamma. TAZ knockdown in BMSCs abolished the beneficial role of Deptor ablation in bone-fat balance in mice. Together, our data indicate that DEPTOR is a molecular rheostat that modulates BMSC differentiation and bone-fat balance, and may represent a potential therapeutic target for age-related bone loss.
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Affiliation(s)
- Zhicong Ouyang
- Academy of Orthopedics, Guangdong Province, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China
| | - Dawei Kang
- Academy of Orthopedics, Guangdong Province, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China; Department of Orthopedics, Dazhou Second People's Hospital of Sichuan Province, Dazhou 635000, China
| | - Kai Li
- Academy of Orthopedics, Guangdong Province, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China
| | - Guojun Liang
- Department of Orthopedics, Guangzhou Huaxin Orthopaedic Hospital of Shantou University, Guangzhou 510507, China
| | - Zezheng Liu
- Academy of Orthopedics, Guangdong Province, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China
| | - Qiguang Mai
- Academy of Orthopedics, Guangdong Province, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China
| | - Qingjing Chen
- Academy of Orthopedics, Guangdong Province, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China
| | - Chenfeng Yao
- Academy of Orthopedics, Guangdong Province, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China
| | - Ruiming Wei
- Academy of Orthopedics, Guangdong Province, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China
| | - Xianchun Tan
- Department of Orthopedics, Dazhou Second People's Hospital of Sichuan Province, Dazhou 635000, China
| | - Xiaochun Bai
- Department of Cell Biology, School of Basic Medical Science, Southern Medical University, Guangzhou 510515, China
| | - Bin Huang
- Academy of Orthopedics, Guangdong Province, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China.
| | - Qingchu Li
- Academy of Orthopedics, Guangdong Province, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China.
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Lojk J, Marc J. Roles of Non-Canonical Wnt Signalling Pathways in Bone Biology. Int J Mol Sci 2021; 22:10840. [PMID: 34639180 PMCID: PMC8509327 DOI: 10.3390/ijms221910840] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/01/2021] [Accepted: 10/05/2021] [Indexed: 01/15/2023] Open
Abstract
The Wnt signalling pathway is one of the central signalling pathways in bone development, homeostasis and regulation of bone mineral density. It consists of numerous Wnt ligands, receptors and co-receptors, which ensure tight spatiotemporal regulation of Wnt signalling pathway activity and thus tight regulation of bone tissue homeostasis. This enables maintenance of optimal mineral density, tissue healing and adaptation to changes in bone loading. While the role of the canonical/β-catenin Wnt signalling pathway in bone homeostasis is relatively well researched, Wnt ligands can also activate several non-canonical, β-catenin independent signalling pathways with important effects on bone tissue. In this review, we will provide a thorough overview of the current knowledge on different non-canonical Wnt signalling pathways involved in bone biology, focusing especially on the pathways that affect bone cell differentiation, maturation and function, processes involved in bone tissue structure regulation. We will describe the role of the two most known non-canonical pathways (Wnt/planar cell polarity pathways and Wnt/Ca2+ pathway), as well as other signalling pathways with a strong role in bone biology that communicate with the Wnt signalling pathway through non-canonical Wnt signalling. Our goal is to bring additional attention to these still not well researched but important pathways in the regulation of bone biology in the hope of prompting additional research in the area of non-canonical Wnt signalling pathways.
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Affiliation(s)
- Jasna Lojk
- Department of Clinical Biochemistry, Faculty of Pharmacy, University of Ljubljana, 1000 Ljubljana, Slovenia;
| | - Janja Marc
- Department of Clinical Biochemistry, Faculty of Pharmacy, University of Ljubljana, 1000 Ljubljana, Slovenia;
- University Clinical Center Ljubljana, Clinical Department of Clinical Chemistry and Biochemistry, 1000 Ljubljana, Slovenia
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6
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Perez-Tejeiro JM, Csukasi F. DEPTOR in Skeletal Development and Diseases. Front Genet 2021; 12:667283. [PMID: 34122519 PMCID: PMC8191632 DOI: 10.3389/fgene.2021.667283] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 04/12/2021] [Indexed: 12/02/2022] Open
Abstract
Discovered in 2009, the DEP-domain containing mTOR-interacting protein, DEPTOR, is a known regulator of the mechanistic target of rapamycin (mTOR), an evolutionarily conserved kinase that regulates diverse cellular processes in response to environmental stimuli. DEPTOR was originally identified as a negative regulator of mTOR complexes 1 (mTORC1) and 2 (mTORC2). However, recent discoveries have started to unravel the roles of DEPTOR in mTOR-independent responses. In the past few years, mTOR emerged as an important regulator of skeletal development, growth, and homeostasis; the dysregulation of its activity contributes to the development of several skeletal diseases, both chronic and genetic. Even more recently, several groups have reported on the relevance of DEPTOR in skeletal biology through its action on mTOR-dependent and mTOR-independent pathways. In this review, we summarize the current understanding of DEPTOR in skeletal development and disease.
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Affiliation(s)
- Jose Miguel Perez-Tejeiro
- Department of Cell Biology, Genetics and Physiology, Faculty of Sciences, IBIMA, University of Málaga, Málaga, Spain.,Biomaterials and Nanomedicine (CIBER-BBN), Andalusian Centre for Nanomedicine and Biotechnology-BIONAND, Networking Biomedical Research Center in Bioengineering, Málaga, Spain
| | - Fabiana Csukasi
- Department of Cell Biology, Genetics and Physiology, Faculty of Sciences, IBIMA, University of Málaga, Málaga, Spain.,Biomaterials and Nanomedicine (CIBER-BBN), Andalusian Centre for Nanomedicine and Biotechnology-BIONAND, Networking Biomedical Research Center in Bioengineering, Málaga, Spain
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7
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Zhang L, Yang Y, Geng D, Wu Y. Identification of Potential Therapeutic Targets and Molecular Regulatory Mechanisms for Osteoporosis by Bioinformatics Methods. BIOMED RESEARCH INTERNATIONAL 2021; 2021:8851421. [PMID: 33778083 PMCID: PMC7969088 DOI: 10.1155/2021/8851421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 01/06/2021] [Accepted: 02/08/2021] [Indexed: 12/29/2022]
Abstract
BACKGROUND Osteoporosis is characterized by low bone mass, deterioration of bone tissue structure, and susceptibility to fracture. New and more suitable therapeutic targets need to be discovered. METHODS We collected osteoporosis-related datasets (GSE56815, GSE99624, and GSE63446). The methylation markers were obtained by differential analysis. Degree, DMNC, MCC, and MNC plug-ins were used to screen the important methylation markers in PPI network, then enrichment analysis was performed. ROC curve was used to evaluate the diagnostic effect of osteoporosis. In addition, we evaluated the difference in immune cell infiltration between osteoporotic patients and control by ssGSEA. Finally, differential miRNAs in osteoporosis were used to predict the regulators of key methylation markers. RESULTS A total of 2351 differentially expressed genes and 5246 differentially methylated positions were obtained between osteoporotic patients and controls. We identified 19 methylation markers by PPI network. They were mainly involved in biological functions and signaling pathways such as apoptosis and immune inflammation. HIST1H3G, MAP3K5, NOP2, OXA1L, and ZFPM2 with higher AUC values were considered key methylation markers. There were significant differences in immune cell infiltration between osteoporotic patients and controls, especially dendritic cells and natural killer cells. The correlation between MAP3K5 and immune cells was high, and its differential expression was also validated by other two datasets. In addition, NOP2 was predicted to be regulated by differentially expressed hsa-miR-3130-5p. CONCLUSION Our efforts aim to provide new methylation markers as therapeutic targets for osteoporosis to better treat osteoporosis in the future.
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Affiliation(s)
- Li Zhang
- Department of Geriatrics, The Municipal Hospital of Suzhou, Jiangsu, China
| | - Yunlong Yang
- Department of Geriatrics, The Municipal Hospital of Suzhou, Jiangsu, China
| | - Dechun Geng
- Department of orthopedics, The First Affiliated Hospital of Soochow University, Jiangsu, China
| | - Yonghua Wu
- Department of Geriatrics, The Municipal Hospital of Suzhou, Jiangsu, China
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Younes N, Syed N, Yadav SK, Haris M, Abdallah AM, Abu-Madi M. A Whole-Genome Sequencing Association Study of Low Bone Mineral Density Identifies New Susceptibility Loci in the Phase I Qatar Biobank Cohort. J Pers Med 2021; 11:jpm11010034. [PMID: 33430342 PMCID: PMC7825795 DOI: 10.3390/jpm11010034] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/12/2020] [Accepted: 12/15/2020] [Indexed: 12/11/2022] Open
Abstract
Bone density disorders are characterized by a reduction in bone mass density and strength, which lead to an increase in the susceptibility to sudden and unexpected fractures. Despite the serious consequences of low bone mineral density (BMD) and its significant impact on human health, most affected individuals may not know that they have the disease because it is asymptomatic. Therefore, understanding the genetic basis of low BMD and osteoporosis is essential to fully elucidate its pathobiology and devise preventative or therapeutic approaches. Here we sequenced the whole genomes of 3000 individuals from the Qatar Biobank and conducted genome-wide association analyses to identify genetic risk factors associated with low BMD in the Qatari population. Fifteen variants were significantly associated with total body BMD (p < 5 × 10−8). Of these, five variants had previously been reported by and were directionally consistent with previous genome-wide association study data. Ten variants were new: six intronic variants located at six gene loci (MALAT1/TALAM1, FASLG, LSAMP, SAG, FAM189A2, and LOC101928063) and four intergenic variants. This first such study in Qatar provides a new insight into the genetic architecture of low BMD in the Qatari population. Nevertheless, more studies are needed to validate these findings and to elucidate the functional effects of these variants on low BMD and bone fracture susceptibility.
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Affiliation(s)
- Nadin Younes
- Biomedical Research Center, College of Health Sciences-QU Health, Qatar University, Doha 2713, Qatar;
| | - Najeeb Syed
- Biomedical Informatics Division, Sidra Medicine, Doha 26999, Qatar; (N.S.); (S.K.Y.); (M.H.)
| | - Santosh K. Yadav
- Biomedical Informatics Division, Sidra Medicine, Doha 26999, Qatar; (N.S.); (S.K.Y.); (M.H.)
| | - Mohammad Haris
- Biomedical Informatics Division, Sidra Medicine, Doha 26999, Qatar; (N.S.); (S.K.Y.); (M.H.)
| | - Atiyeh M. Abdallah
- Department of Biomedical Sciences, College of Health Sciences-QU Health, Doha 2713, Qatar;
- Biomedical and Pharmaceutical Research Unit-QU Health, Qatar University, Doha 2713, Qatar
| | - Marawan Abu-Madi
- Biomedical Research Center, College of Health Sciences-QU Health, Qatar University, Doha 2713, Qatar;
- Department of Biomedical Sciences, College of Health Sciences-QU Health, Doha 2713, Qatar;
- Biomedical and Pharmaceutical Research Unit-QU Health, Qatar University, Doha 2713, Qatar
- Correspondence: ; Tel.: +974-4403-7578; Fax: +974-4403-4801
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9
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Zheng K, Lin L, Cui P, Liu T, Chen L, Yang C, Jiang W. Association of Fibroblast Growth Factor 23 With Ischemic Stroke and Its Subtypes: A Mendelian Randomization Study. Front Genet 2020; 11:608517. [PMID: 33424930 PMCID: PMC7785587 DOI: 10.3389/fgene.2020.608517] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 12/01/2020] [Indexed: 11/13/2022] Open
Abstract
Fibroblast growth factor 23 (FGF23), which is involved in the regulation of vitamin D, is an emerging independent risk factor for cardiovascular diseases. Previous studies have demonstrated a positive association between FGF23 and stroke. In this study, we aimed to assess the association of FGF23 with ischemic stroke and its subtypes by applying a Mendelian randomization (MR) framework. Five genetic variants obtained from a genome-wide association study involving 16,624 European subjects were used as valid instruments of circulating FGF23 levels. MR was applied to infer the causality of FGF23 levels and the risk of ischemic stroke using data from the MEGASTROKE consortium. Subsequently, several MR analyses, including inverse-variance weighted meta-analysis, MR-Egger, weighted median estimate (WME), MR Pleiotropy Residual Sum and Outlier were performed. The heterogeneity test analysis, including Cochran's Q, I 2 test and leave-one-out analysis were also applied. Furthermore, potential horizontal/vertical pleiotropy was assessed. Lastly, the power of MR analysis was tested. Three validated variants were found to be associated with circulating FGF23 levels and were used for further investigation. We found that high expression level of FGF23 was not associated with any ischemic stroke. However, a causal association between genetically predicted FGF23 levels and the risk of large-artery atherosclerotic stroke (LAS) was significant, with an odds ratio of 1.74 (95% confidence interval = 1.08-2.81) per standard deviation increase in circulating FGF23 levels. Our findings provide support for the causal association between FGF23 and LAS, and therefore, offer potential therapeutic targets for LAS. The specific roles of FGF23 in LAS and associated molecules require further investigation.
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Affiliation(s)
- Kai Zheng
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Lingmin Lin
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
- School of Brain Science and Brain Medicine, Zhejiang University, Hangzhou, China
| | - Pan Cui
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Tao Liu
- Department of Neurology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Lin Chen
- Department of Physical Medicine and Rehabilitation, Tianjin Medical University General Hospital, Tianjin, China
| | - Chunsheng Yang
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Wei Jiang
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
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