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Moradifard S, Hoseinbeyki M, Emam MM, Parchiniparchin F, Ebrahimi-Rad M. Association of the Sp1 binding site and -1997 promoter variations in COL1A1 with osteoporosis risk: The application of meta-analysis and bioinformatics approaches offers a new perspective for future research. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2020; 786:108339. [PMID: 33339581 DOI: 10.1016/j.mrrev.2020.108339] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 08/11/2020] [Accepted: 10/06/2020] [Indexed: 12/21/2022]
Abstract
As a complex disease, osteoporosis is influenced by several genetic markers. Many studies have examined the link between the Sp1 binding site +1245 G > T (rs1800012) and -1997 G > T (rs1107946) variations in the COL1A1 gene with osteoporosis risk. However, the findings of these studies have been contradictory; therefore, we performed a meta-analysis to aggregate additional information and obtain increased statistical power to more efficiently estimate this correlation. A meta-analysis was conducted with studies published between 1991-2020 that were identified by a systematic electronic search of the Scopus and Clarivate Analytics databases. Studies with bone mineral density (BMD) data and complete genotypes of the single-nucleotide variations (SNVs) for the overall and postmenopausal female population were included in this meta-analysis and analyzed using the R metaphor package. A relationship between rs1800012 and significantly decreased BMD values at the lumbar spine and femoral neck was found in individuals carrying the "ss" versus the "SS" genotype in the overall population according to a random effects model (p < 0.0001). Similar results were also found in the postmenopausal female population (p = 0.003 and 0.0002, respectively). Such findings might be an indication of increased osteoporosis risk in both studied groups in individuals with the "ss" genotype. Although no association was identified between the -1997 G > T and low BMD in the overall population, those individuals with the "GT" genotype showed a higher level of BMD than those with "GG" in the subgroup analysis (p = 0.007). To determine which transcription factor (TF) might bind to the -1997 G > T in COL1A1, 45 TFs were identified based on bioinformatics predictions. According to the GSE35958 microarray dataset, 16 of 45 TFs showed differential expression profiles in osteoporotic human mesenchymal stem cells relative to normal samples from elderly donors. By identifying candidate TFs for the -1997 G > T site, our study offers a new perspective for future research.
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Affiliation(s)
| | | | - Mohammad Mehdi Emam
- Rheumatology Ward, Loghman Hospital, Shahid Beheshti Medical University (SBMU), Tehran, Iran
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Soibam D, Singh TA, Nandy P, Dewan SK, Baruah A. Sp1 Binding Site Polymorphism at COL1A1 Gene and Its Relation to Bone Mineral Density for Osteoporosis Risk Factor Among the Sikkimese Men and Women of Northeast India. Indian J Clin Biochem 2019; 34:230-233. [PMID: 31092999 DOI: 10.1007/s12291-017-0728-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 12/22/2017] [Indexed: 11/30/2022]
Abstract
Single nucleotide polymorphism in the first intron of Collagen type I alpha 1 (COL1A1) gene which is the binding site of specificity protein 1 (Sp1) transcription factor associated with low bone mineral density and osteoporosis. To evaluate such genetic factors among the Sikkimese population, a total of 150 cases (75 men and 75 women) with primary osteopenia and osteoporosis and 150 healthy controls (75 men and 75 women) of age range between 35 and 65 years were enrolled in this study. The COL1A1 genotypes [SS, Ss and ss] were assessed by restriction enzyme [MscI] digestion of DNA after amplification by polymerase chain reaction. There, only 2.7% women and 1.3% men cases had restriction site with heterozygous genotype (Ss) and no homozygous genotype (ss) were detected. There was no statistically significant association between low bone mass and genotypes on analysis (χ2 = 1.014, P = 0.314; RR = 1.510) that, the Sp1 binding site polymorphism at the COLIA1 gene is very rare and has no contribution in the development low bone mineral density.
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Affiliation(s)
- Deepa Soibam
- 1Department of Biochemistry, Sikkim Manipal Institute of Medical Sciences, 5th Mile Tadong, Gangtok, East Sikkim, 737101 India
| | - T A Singh
- 1Department of Biochemistry, Sikkim Manipal Institute of Medical Sciences, 5th Mile Tadong, Gangtok, East Sikkim, 737101 India
| | - Parvati Nandy
- 2Department of Medicine, Sikkim Manipal Institute of Medical Sciences, Gangtok, Sikkim India
| | - Sunder Kishore Dewan
- 3Department of Orthopedics, Sikkim Manipal Institute of Medical Sciences, Gangtok, Sikkim India
| | - Ankur Baruah
- North East Medical Care Hospital and Research Centre, Guwahati, India
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Zeng Y, Si H, Wu Y, Li Y, Cao F, Li C, He Z, Chen Z, Shen B. Gene Therapy with Tetracycline-Regulated Human Recombinant COLIA1 cDNA Direct Adenoviral Delivery Enhances Fracture Healing in Osteoporotic Rats. Hum Gene Ther 2018; 29:902-915. [PMID: 29641324 DOI: 10.1089/hum.2018.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
A number of previous studies have indicated that the genetic variation at the collage type I alpha 1 (COLIA1) gene locus influences susceptibility to osteoporosis. However, seldom have studies reported the effect of gene delivery using an adenovirus vector carrying human recombinant COLIA1 cDNA on stimulating osteogenic activity of osteoblasts and enhancing fracture healing of ovariectomized rats. The current study was performed to demonstrate whether direct gene delivery using an adenovirus vector carrying human recombinant COLIA1 cDNA could stimulate osteogenic activity of osteoblast in vitro and enhance fracture healing of ovariectomized rats in vivo. In vitro, the tet-on system regulated COLIA1 gene adenovirus was constructed and transfected to osteoblasts. COLIA1 mRNA and collagen type I levels were assessed by reverse transcription polymerase chain reaction and enzyme-linked immunosorbent assay to determine whether adenovirus transfected successfully. Osteogenic activity of the osteoblasts was assessed by alkaline phosphatase activity, immunohistochemical staining, immunofluorescent staining, mineralized matrix formation, and extracellular calcium levels. In vivo, adenovirus-delivered COLIA1 gene was injected into the fracture site of the tibia in an ovariectomized rat model of osteoporosis, and bone callus condition was assessed to determine whether the COLIA1 gene could accelerate osteoporotic fracture healing. In vitro, the results showed that COLIA1 gene adenovirus transfection could increase osteoblast COLIA1 gene expression and collagen type I protein synthesis, increase alkaline phosphatase activity, and stimulate calcium nodules formation, which exhibited a direct osteogenic effect on the osteoblasts. In vivo, local injection of COLIA1 gene adenovirus increased collagen type I expression, restored bone mineral density, and accelerated fracture healing in ovariectomized rats, without increasing serum collagen type I and liver COLIA1 mRNA levels. This study suggests direct gene delivery using an adenovirus carrying human COLIA1 cDNA can stimulate the osteogenic activity of osteoblasts in vitro and enhance bone fracture healing in vivo. The tet-on system is an ideal gene regulatory system for effective and safe regulation of the therapeutic gene.
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Affiliation(s)
- Yi Zeng
- 1 Department of Orthopedics, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan, China
| | - Haibo Si
- 1 Department of Orthopedics, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan, China
| | - Yuangang Wu
- 1 Department of Orthopedics, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan, China
| | - Yong Li
- 2 Department of Orthopedics, Navy General Hospital, Chinese People's Liberation Army, Beijing, China
| | - Fei Cao
- 1 Department of Orthopedics, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan, China
| | - Canfeng Li
- 1 Department of Orthopedics, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan, China
| | - Zhiyao He
- 3 Lab for Aging Research, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University , Chengdu, China
| | - Zhuo Chen
- 4 Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University , Chengdu, China
| | - Bin Shen
- 1 Department of Orthopedics, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan, China
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Dytfeld J, Marcinkowska M, Drwęska-Matelska N, Michalak M, Horst-Sikorska W, Słomski R. Association analysis of the COL1A1 polymorphism with bone mineral density and prevalent fractures in Polish postmenopausal women with osteoporosis. Arch Med Sci 2016; 12:288-94. [PMID: 27186171 PMCID: PMC4848358 DOI: 10.5114/aoms.2016.59253] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Accepted: 07/05/2014] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION Polymorphism in the promoter region of collagen type 1α (COL1A1) +1245G/T (Sp1, rs1800012) was in some studies shown to be relevant for bone mineral density (BMD) and low-energy fracture prediction. The aim of the study was to confirm this finding in a group of postmenopausal women diagnosed with osteoporosis. MATERIAL AND METHODS We investigated 311 Caucasian women (mean age: 65.2 ±9.39 years) either after low-energy fractures (regardless of the location) or meeting World Health Organization (WHO) criteria for osteoporosis. All patients underwent clinical examination in order to exclude secondary osteoporosis; hip and lumbar spine DEXA was performed (Lunar). The three genotypes of Sp1 polymorphism were determined by RFLP (restriction fragment length polymorphism). RESULTS Distribution of COL1A1 genotypes (SS/Ss/ss) agreed with Hardy-Weinberg equilibrium. No relation between COL1A1 genotypes and hip/L1-L4 BMD was found. Fractures were reported in 26.3% of women. Prevalence of low-energy fractures, regardless of the type, was 50.0% in ss genotype carriers, 26.4% in SS homozygotes and 23.7% in Ss heterozygotes. There was no statistically significant recessive or dominant effect of any Sp1 genotype on fracture prevalence (p = 0.613). CONCLUSIONS We failed to observe that COL1A1 Sp 1 genotypes contribute to BMD determination or are associated with prevalent low-energy fractures in a Polish cohort of postmenopausal osteoporotic women.
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Affiliation(s)
- Joanna Dytfeld
- Department of Family Medicine, Poznan University of Medical Sciences, Poznan, Poland
| | | | - Natalia Drwęska-Matelska
- Department of Biochemistry and Biotechnology, Poznan University of Life Sciences, Poznan, Poland
| | - Michał Michalak
- Department of Computer Science and Statistics, Poznan University of Medical Sciences, Poznan, Poland
| | - Wanda Horst-Sikorska
- Department of Family Medicine, Poznan University of Medical Sciences, Poznan, Poland
| | - Ryszard Słomski
- Department of Biochemistry and Biotechnology, Poznan University of Life Sciences, Poznan, Poland
- Institute of Human Genetics, Polish Academy of Sciences, Poznan, Poland
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Xie P, Liu B, Zhang L, Chen R, Yang B, Dong J, Rong L. Association of COL1A1 polymorphisms with osteoporosis: a meta-analysis of clinical studies. Int J Clin Exp Med 2015; 8:14764-14781. [PMID: 26628959 PMCID: PMC4658848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 02/10/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To conduct a meta-analysis of all association studies on two of the collagen 1 alpha 1 (COL1A1) gene polymorphisms, the -1997G/T (rs1107946) and the -1663indelT (rs2412298) polymorphisms and osteoporosis/BMD and fracture. METHODS PubMed/Medline and Web of Knowledge were searched for relevant association studies published in English. Pooled OR and its corresponding 95% CI or pooled MD and its corresponding 95% CI was calculated with the Cochrane Review Manager (Revman, version 5.2) using a random-effect or a fixed effect model. RESULTS No significant association between the -1997G/T polymorphism and Lumbar Spine (LS) and Femoral Neck (FN) BMD except for the Caucasian subpopulation wherein subjects with the T allele of the -1997G/T polymorphism was associated with significantly higher LS BMD. Our analysis did reveal that women, especially postmenopausal or perimenopausal women with the GG genotype, had significantly higher Total Hip (TH) BMD than those with the GT. Additionally, our meta-analysis did not show significant association between the -1997G/T polymorphism and risk of fracture, between the -1663indelT polymorphism and LS BMD in postmenopausal or perimenopausal women, or between the -1663indelT polymorphism and the risk of fracture. CONCLUSIONS Our results suggested the possibility of the COL1A1 -1997G/T and the -1663indelT polymorphisms individually playing very little role in osteoporosis and fracture, although more studies are needed especially for the analysis of association between these two polymorphisms and fracture. Haplotype studies may become one important future direction of study to further elucidate whether and how various COL1A1 polymorphisms affect bone health, osteoporosis and fracture.
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Affiliation(s)
- Peigen Xie
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University Shi Pai, Tian He District, No.600, Tianhe Road, Guangzhou 510630, Guangdong, People's Republic of China
| | - Bin Liu
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University Shi Pai, Tian He District, No.600, Tianhe Road, Guangzhou 510630, Guangdong, People's Republic of China
| | - Liangming Zhang
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University Shi Pai, Tian He District, No.600, Tianhe Road, Guangzhou 510630, Guangdong, People's Republic of China
| | - Ruiqiang Chen
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University Shi Pai, Tian He District, No.600, Tianhe Road, Guangzhou 510630, Guangdong, People's Republic of China
| | - Bu Yang
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University Shi Pai, Tian He District, No.600, Tianhe Road, Guangzhou 510630, Guangdong, People's Republic of China
| | - Jianwen Dong
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University Shi Pai, Tian He District, No.600, Tianhe Road, Guangzhou 510630, Guangdong, People's Republic of China
| | - Limin Rong
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-Sen University Shi Pai, Tian He District, No.600, Tianhe Road, Guangzhou 510630, Guangdong, People's Republic of China
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Bailey RL, Looker AC, Lu Z, Fan R, Eicher-Miller HA, Fakhouri TH, Gahche JJ, Weaver CM, Mills JL. B-vitamin status and bone mineral density and risk of lumbar osteoporosis in older females in the United States. Am J Clin Nutr 2015; 102:687-94. [PMID: 26224297 PMCID: PMC4548174 DOI: 10.3945/ajcn.115.108787] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 07/02/2015] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Previous data suggest that elevated serum total homocysteine (tHcy) may be a risk factor for bone fracture and osteoporosis. Nutritional causes of elevated tHcy are suboptimal B-vitamin status. To our knowledge, this is the first nationally representative report on the relation of B vitamins and bone health from a population with folic acid fortification. OBJECTIVE The purpose of this analysis was to examine the relation between B-vitamin status biomarkers and bone mineral density (BMD), risk of osteoporosis, and biomarkers of bone turnover. DESIGN We examined the relation of tHcy, methylmalonic acid (MMA), and serum/red blood cell folate and total-body and lumbar spine BMD in women aged ≥50 y participating in the NHANES 1999-2004 (n = 2806), a nationally representative cross-sectional survey. These are the only years with concurrent measurement of tHcy and whole-body dual-energy X-ray absorptiometry. We also examined B-vitamin biomarkers relative to bone turnover markers, bone alkaline phosphatase, and urinary N-terminal cross-linked telopeptide of type I collagen in a 1999-2002 subset with available data (n = 1813). RESULTS In comparison with optimal concentrations, women with elevated tHcy were older with lower serum vitamin B-12, red blood cell folate, and dietary micronutrient intakes and had significantly higher mean ± SE markers of bone turnover (bone alkaline phosphatase: 15.8 ± 0.59 compared with 14.0 ± 0.25 μg/L; urinary N-terminal cross-linked telopeptide of type I collagen: 48.2 ± 2.9 compared with 38.9 ± 0.90 nmol bone collagen equivalents per mmol creatinine/L). Elevated MMA (OR: 1.88; 95% CI: 1.10, 3.18) and tHcy (OR: 2.17; 95% CI: 1.14, 4.15) were related to increased risk of lumbar osteoporosis. When examined as a continuous variable, tHcy was negatively associated, serum folates were positively associated, and MMA and vitamin B-12 were not significantly associated with lumbar and total-body BMD. CONCLUSION In this nationally representative population of older US women with high exposure to B vitamins through food fortification and dietary supplements, only elevated tHcy and MMA were independently associated with risk of lumbar spine osteoporosis.
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Affiliation(s)
- Regan L Bailey
- Office of Dietary Supplements and Department of Nutrition Science, Purdue University, West Lafayette, IN; and
| | - Anne C Looker
- National Center for Health Statistics, CDC, Hyattsville, MD
| | - Zhaohui Lu
- Eunice Kennedy Shriver National Institute of Child and Human Development, NIH, Bethesda, MD
| | - Ruzong Fan
- Eunice Kennedy Shriver National Institute of Child and Human Development, NIH, Bethesda, MD
| | | | | | - Jaime J Gahche
- National Center for Health Statistics, CDC, Hyattsville, MD
| | - Connie M Weaver
- Department of Nutrition Science, Purdue University, West Lafayette, IN; and
| | - James L Mills
- Eunice Kennedy Shriver National Institute of Child and Human Development, NIH, Bethesda, MD
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Drissi H, Paglia DN, Alaee F, Yoshida R. Constructing the toolbox: Patient-specific genetic factors of altered fracture healing. Genes Dis 2014; 1:140-148. [PMID: 25558470 PMCID: PMC4280851 DOI: 10.1016/j.gendis.2014.07.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Accepted: 07/18/2014] [Indexed: 01/10/2023] Open
Abstract
The multifaceted sequence of events that follow fracture repair can be further complicated when considering risk factors for impaired union, present in a large and growing percentage of the population. Risk factors such as diabetes, substance abuse, and poor nutrition affect both the young and old alike, and have been shown to dramatically impair the body's natural healing processes. To this end, biotherapeudic interventions such as ultrasound, electrical simulation, growth factor treatment (BMP-2, BMP-7, PDGF-BB, FGF-2) have been evaluated in preclinical models and in some cases are used widely for patients with established non-union or risk/indication or impaired healing (ie. ultrasound, BMP-2, etc.). Despite the promise of these interventions, they have been shown to be reliant on patient compliance and can produce adverse side-effects such as heterotopic ossification. Gene and cell therapy approaches have attempted to apply controlled regimens of these factors and have produced promising results. However, there are safety and efficacy concerns that may limit the translation of these approaches. In addition, none of the above mentioned approaches consider genetic variation between individual patients. Several clinical and preclinical studies have demonstrated a genetic component to fracture repair and that SNPs and genetic background variation play major roles in the determination of healing outcomes. Despite this, there is a need for preclinical data to dissect the mechanism underlying the influence of specific gene loci on the processes of fracture healing, which will be paramount in the future of patient-centered interventions for fracture repair.
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Affiliation(s)
- Hicham Drissi
- New England Musculoskeletal Institute and Department of Orthopaedic Surgery, United States
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Combined effects of collagen type I alpha1 (COL1A1) Sp1 polymorphism and osteoporosis risk factors on bone mineral density in Turkish postmenopausal women. Gene 2014; 540:226-31. [PMID: 24566004 DOI: 10.1016/j.gene.2014.02.028] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 02/10/2014] [Accepted: 02/14/2014] [Indexed: 12/19/2022]
Abstract
Identification of risk factors for osteoporosis has been essential for understanding the development of osteoporosis. The collagen type I alpha1 (COL1A1) gene is suggested to be implicated in reduced bone mineral density (BMD) in osteoporosis. In the present study, the investigation of the effects of Sp1 polymorphic variants of COL1A1 gene on BMD values, and the determination of the association between COL1A1 Sp1 gene variants and osteoporosis risk factors in the context of gene-environment interaction in Turkish postmenopausal women were aimed. For the detection of COL1A1 Sp1 polymorphism, PCR-RFLP techniques have been used. BMD for lumbar spine (L1-L4) and hip (femoral neck and total hip) was measured by DXA. This study was carried out using a sample of 254 postmenopausal women. We observed a trend decrease in BMD values in the subjects with "ss" genotype having lower BMD of lumbar spine, femoral neck and total hip than those with "SS" and "Ss" genotype, however the differences did not reach statistical significance (P>0.05). We also found that the frequencies of the BMD under mean values at the femoral neck (57.5%) and total hip (76.2%) increased considerably in the subjects carrying "Ss/ss" genotypes in combination of having family history of osteoporosis (61.5% for femoral neck) and smoking history (90.0% for total hip). This population-based study indicates that COL1A1 Sp1 polymorphism may contribute to the development of osteoporosis in combination of osteoporosis risk factors in Turkish postmenopausal women.
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Rojo Venegas K, Aguilera Gómez M, Cañada Garre M, Sánchez AG, Contreras-Ortega C, Calleja Hernández MA. Pharmacogenetics of osteoporosis: towards novel theranostics for personalized medicine? OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2013; 16:638-51. [PMID: 23215803 DOI: 10.1089/omi.2011.0150] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Osteoporosis is a complex multifactorial bone disorder with a strong genetic basis. It is the most common, severe, progressive skeletal illness that has been increasing, particularly in developed countries. Osteoporosis will no doubt constitute a serious clinical burden in healthcare management in the coming decades. The genetics of osteoporosis should be analyzed from both the disease susceptibility and the pharmacogenetic treatment perspectives. The former has been widely studied and discussed, while the latter still requires much more information and research. This article provides a synthesis of the literature on the genetics of osteoporosis and an update on progress made in pharmacogenetics of osteoporosis in recent years, specifically regarding the new molecular targets for antiresorptive drugs. In-depth translation of osteoporosis pharmacogenetics approaches to clinical practice demands a new vision grounded on the concept of "theranostics," that is, the integration of diagnostics for both disease susceptibility testing, as well as for prediction of health intervention outcomes. In essence, theranostics signals a broadening in the scope of inquiry in diagnostics medicine. The upcoming wave of theranostics medicine also suggests more distributed forms of science and knowledge production, both by experts and end-users of scientific products. Both the diagnosis and personalized treatment of osteoporosis could conceivably benefit from the emerging postgenomics field of theranostics.
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Affiliation(s)
- Karen Rojo Venegas
- Pharmacy Service, Virgen de las Nieves University Hospital, Granada, Spain.
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Rojano-Mejía D, Coral-Vázquez RM, Espinosa LC, López-Medina G, Aguirre-García MC, Coronel A, Canto P. JAG1 and COL1A1 polymorphisms and haplotypes in relation to bone mineral density variations in postmenopausal Mexican-Mestizo Women. AGE (DORDRECHT, NETHERLANDS) 2013; 35:471-478. [PMID: 22174012 PMCID: PMC3592947 DOI: 10.1007/s11357-011-9363-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2011] [Accepted: 12/05/2011] [Indexed: 05/31/2023]
Abstract
Osteoporosis is characterized by low bone mineral density (BMD). One of the most important factors that influence BMD is the genetic contribution. The collagen type 1 alpha 1 (COL1A1) and the JAGGED (JAG1) have been investigated in relation to BMD. The aim of this study was to investigate the possible association between two single-nucleotide polymorphisms (SNPs) of COL1A1, their haplotypes, and one SNP of JAG1 with BMD in postmenopausal Mexican-Mestizo women. Seven hundred and fifty unrelated postmenopausal women were included. Risk factors were recorded and BMD was measured in lumbar spine, total hip, and femoral neck by dual-energy X-ray absorptiometry. DNA was obtained from blood leukocytes. Two SNPs in COL1A1 (rs1800012 and rs1107946) and one in JAG1 (rs2273061) were studied. Real-time PCR allelic discrimination was used for genotyping. The differences between the means of the BMDs according to genotype were analyzed with covariance. Deviations from Hardy-Weinberg equilibrium were tested. Pairwise linkage disequilibrium between single nucleotide polymorphisms was calculated by direct correlation r (2), and haplotype analysis of COL1A1 was conducted. Under a dominant model, the rs1800012 polymorphism of the COL1A1 showed an association with BMD of the lumbar spine (P = 0.021). In addition, analysis of the haplotype of COL1A1 showed that the G-G haplotype presented a higher BMD in lumbar spine. We did not find an association between the s1107946 and rs2273061 polymorphisms of the COL1A1 and JAG1, respectively. Our results suggest that the rs1800012 polymorphism of the COL1A1, in addition to one haplotype, were significantly associated with BMD variation in Mexican-Mestizo postmenopausal women.
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Affiliation(s)
- David Rojano-Mejía
- />División de Investigación Biomédica, Subdirección de Enseñanza e Investigación, Centro Médico Nacional “20 de Noviembre”, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, San Lorenzo No. 502, 2nd piso. Col. del Valle, Delegación Benito Juárez, C.P. 03100 Mexico, D.F. Mexico
- />Unidad de Medicina Física y Rehabilitación Centro, UMAE Hospital de Traumatología y Ortopedia “Lomas Verdes”, Instituto Mexicano del Seguro Social, México, D.F. México
| | - Ramón M. Coral-Vázquez
- />Sección de Posgrado, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico, D.F. Mexico
- />Subdirección de Enseñanza e Investigación, Centro Médico Nacional “20 de Noviembre”, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, Mexico, D.F. Mexico
| | - Leticia Cortes Espinosa
- />Servicio de Ginecología y Obstetricia, Hospital Regional Tacuba, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, Mexico, D.F. Mexico
| | - Guillermo López-Medina
- />División de Investigación Biomédica, Subdirección de Enseñanza e Investigación, Centro Médico Nacional “20 de Noviembre”, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, San Lorenzo No. 502, 2nd piso. Col. del Valle, Delegación Benito Juárez, C.P. 03100 Mexico, D.F. Mexico
| | - María C. Aguirre-García
- />Unidad de Medicina Familiar No. 20, Instituto Mexicano del Seguro Social, Mexico, D.F. Mexico
| | - Agustín Coronel
- />División de Investigación Biomédica, Subdirección de Enseñanza e Investigación, Centro Médico Nacional “20 de Noviembre”, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, San Lorenzo No. 502, 2nd piso. Col. del Valle, Delegación Benito Juárez, C.P. 03100 Mexico, D.F. Mexico
| | - Patricia Canto
- />División de Investigación Biomédica, Subdirección de Enseñanza e Investigación, Centro Médico Nacional “20 de Noviembre”, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, San Lorenzo No. 502, 2nd piso. Col. del Valle, Delegación Benito Juárez, C.P. 03100 Mexico, D.F. Mexico
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Gene variants within the COL1A1 gene are associated with reduced anterior cruciate ligament injury in professional soccer players. J Sci Med Sport 2012; 16:396-400. [PMID: 23168334 DOI: 10.1016/j.jsams.2012.10.004] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Revised: 09/20/2012] [Accepted: 10/12/2012] [Indexed: 02/01/2023]
Abstract
OBJECTIVES To examine the association of the COL1A1 -1997G/T and +1245G/T polymorphisms, individually and as haplotypes, with anterior cruciate ligament ruptures in professional soccer players. DESIGN Subjects were 91 male professional soccer players with surgically diagnosed primary anterior cruciate ligament ruptures. The control group consisted of 143 apparently healthy male professional soccer players, who were without any self-reported history of ligament or tendon injury. Both subjects and healthy controls are from the same soccer teams, of the same ethnicity (Polish, East-Europeans for ≥3 generations), a similar age category, and had a comparable level of exposure to anterior cruciate ligament injury. METHODS Genomic DNA was extracted from the oral epithelial cells using GenElute Mammalian Genomic DNA Miniprep Kit (Sigma, Germany). All samples were genotyped using a Rotor-Gene real-time polymerase chain reaction. RESULTS Genotype distributions for both polymorphisms met the Hardy-Weinberg expectations in both subjects and controls (p>0.05). Higher frequency of the COL1A1 G-T (-1997G/T and +1245G/T polymorphisms) haplotype was significantly associated with reduced risk for anterior cruciate ligament rupture (Hap.score -1.98, p=0.048). The TT genotype was under-represented in the anterior cruciate ligament rupture group. However, this result was not statistically significant (p=0.084 Fisher's exact test, recessive mode: TT vs GT+GG). CONCLUSIONS Higher frequency of the COL1A1 G-T haplotype is associated with reduced risk of anterior cruciate ligament injury in a group of professional soccer players. Consequently, carrying two copies the COL1A1 G-T haplotype may be protective against anterior cruciate ligament injury.
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Insights into the genetics of osteoporosis from recent genome-wide association studies. Expert Rev Mol Med 2011; 13:e28. [PMID: 21867596 DOI: 10.1017/s1462399411001980] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Osteoporosis, which is characterised by reduced bone mineral density (BMD) and an increased risk of fragility fractures, is the result of a complex interaction between environmental factors and genetic variants that confer susceptibility. Heritability studies have shown that BMD and other osteoporosis-related traits such as ultrasound properties of bone, skeletal geometry and bone turnover have significant inheritable components. Although previous linkage and candidate gene studies have provided few replicated loci for osteoporosis, genome-wide association approaches have produced clear and reproducible findings. To date, 20 genome-wide association studies (GWASs) for osteoporosis and related traits have been conducted, identifying dozens of genes. Further meta-analyses of GWAS data and deep resequencing of rare variants will uncover more novel susceptibility loci and ultimately provide possible therapeutic targets for fracture prevention.
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Abstract
CONTEXT A strong genetic influence on bone mineral density has been long established, and modern genotyping technologies have generated a flurry of new discoveries about the genetic determinants of bone mineral density (BMD) measured at a single time point. However, much less is known about the genetics of age-related bone loss. Identifying bone loss-related genes may provide new routes for therapeutic intervention and osteoporosis prevention. EVIDENCE ACQUISITION A review of published peer-reviewed literature on the genetics of bone loss was performed. Relevant studies were summarized, most of which were drawn from the period 1990-2010. EVIDENCE SYNTHESIS Although bone loss is a challenging phenotype, available evidence supports a substantial genetic contribution. Some of the genes identified from recent genome-wide association studies of cross-sectional BMD are attractive candidate genes for bone loss, most notably genes in the nuclear factor κB and estrogen endocrine pathways. New insights into the biology of skeletal development and regulation of bone turnover have inspired new hypotheses about genetic regulation of bone loss and may provide new directions for identifying genes associated with bone loss. CONCLUSIONS Although recent genome-wide association and candidate gene studies have begun to identify genes that influence BMD, efforts to identify susceptibility genes specific for bone loss have proceeded more slowly. Nevertheless, clues are beginning to emerge on where to look, and as population studies accumulate, there is hope that important bone loss susceptibility genes will soon be identified.
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Affiliation(s)
- Braxton D Mitchell
- Department of Medicine, Division of Endocrinology, Diabetes, and Nutrition, University of Maryland School of Medicine, Baltimore, Maryland 21201, USA.
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González-Bofill N, Husted LB, Harsløf T, Tofteng CL, Abrahamsen B, Eiken P, Vestergaard P, Langdahl BL. Effects of COLIA1 polymorphisms and haplotypes on perimenopausal bone mass, postmenopausal bone loss and fracture risk. Osteoporos Int 2011; 22:1145-56. [PMID: 20571774 DOI: 10.1007/s00198-010-1292-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2010] [Accepted: 04/27/2010] [Indexed: 12/11/2022]
Abstract
UNLABELLED One thousand seven hundred seventeen perimenopausal women from the Danish Osteoporosis Prevention Study were genotyped for the -1997G/T, -1663indelT and +1245G/T polymorphisms in the COLIA1 gen. We found that the -1997T allele and a haplotype containing it were associated with reduced bone mineral density (BMD) and increased bone turnover at menopause and after 10 years of follow-up. INTRODUCTION We wanted to investigate whether the -1997G/T, -1663indelT and +1245G/T polymorphisms in the COLIA1 gene are associated with perimenopausal bone mass, early postmenopausal bone loss and interact with hormone treatment. METHODS One thousand seven hundred seventeen perimenopausal women from the Danish Osteoporosis Prevention Study were genotyped, and haplotypes were determined. BMD was examined by dual X-ray absorptiometry. RESULTS Women carrying the -1997T variant had lower BMD at all measured sites: lumbar spine BMD 1.030 ± 0.137 g/cm(2), 1.016 ± 0.147 g/cm(2) and 0.988 ± 0.124 g/cm(2) in women with the GG, GT and TT genotypes, respectively (p < 0.05) and total hip BMD 0.921 ± 0.116 g/cm(2), 0.904 ± 0.123 g/cm(2) and 0.887 ± 0.109 g/cm(2) in women with the GG, GT and TT genotypes, respectively (p = 0.01). The effect remained after 10 years although statistical significance was lost. Haplotype 3 (-1997T-1663ins + 1245G) was associated with lower bone mass and higher levels of bone turnover. Compared with haplotype 1, haplotype 3 carriers had lower BMD at the lumbar spine, femoral neck and total hip by 0.016 ± 0.007 g/cm(2), 0.015 ± 0.006 g/cm(2) and 0.017 ± 0.006 g/cm(2), respectively (p < 0.05-0.005). No association with postmenopausal changes in bone mass and fracture risk and no overall interaction with the effects of hormone therapy could be demonstrated for any of the polymorphisms in COLIA1. CONCLUSIONS The -1997G/T polymorphism and haplotype 3 are significantly associated with perimenopausal bone mass, and these effects were sustained up to 10 years after menopause. No association between the -1663indelT or +1245G/T polymorphisms and peri- or postmenopausal bone mass could be demonstrated.
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Affiliation(s)
- N González-Bofill
- Department of Endocrinology and Internal Medicine THG, Aarhus University Hospital, Aarhus, Denmark.
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Jin H, Evangelou E, Ioannidis JPA, Ralston SH. Polymorphisms in the 5' flank of COL1A1 gene and osteoporosis: meta-analysis of published studies. Osteoporos Int 2011; 22:911-21. [PMID: 20798928 PMCID: PMC4696542 DOI: 10.1007/s00198-010-1364-5] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2010] [Accepted: 06/15/2010] [Indexed: 11/24/2022]
Abstract
UNLABELLED A meta-analysis of studies was conducted involving 24,511 participants with 7,864 fractures in which polymorphisms in the 5' flank of COL1A1 (rs1107946, rs2412298, and rs1800012) were related to osteoporosis phenotypes. Polymorphisms of all three sites were associated with BMD, and rs1800012 was associated with fracture but effect sizes were modest. INTRODUCTION AND HYPOTHESIS Polymorphisms in the 5' flank of COL1A1 gene have been implicated as genetic markers for susceptibility to osteoporosis, but previous studies have yielded conflicting results. METHODS We conducted a meta-analysis of 32 studies including 24,511 participants and 7,864 fractures in which alleles at the -1997G/T (rs1107946), -1663in/delT (rs2412298), and Sp1 binding site polymorphisms (rs1800012) of COL1A1 had been related to bone mineral density (BMD) or fracture. RESULTS For the Sp1 polymorphism, BMD values in TT homozygotes were 0.13 units [95% CI, 0.03 to 0.24] lower at the spine (p = 0.01) and 0.16 units [0.10 to 0.23] lower at the hip (p = 1 x 10⁻⁶) than GG homozygotes. Clinical fractures were 1.31-fold [1.04-1.65] increased in TT homozygotes (p = 0.02) and vertebral fractures were 1.34-fold [1.01-1.77] increased (p = 0.04). We also observed associations between spine BMD and allelic variants at the -1997G/T (p = 0.05) and the -1663indelT (p = 0.009) sites. We found no association between alleles at the -1997G/T or -1663indelT sites and fracture but power was limited. CONCLUSIONS The COL1A1 Sp1 polymorphism is associated with a modest reduction in BMD and an increased risk of fracture, although we cannot fully exclude the possibility that the results may have been influenced by publication bias. Further studies are required to fully evaluate the contribution of the -1997G/T and -1663in/delT sites to these phenotypes and to determine if they interact with the Sp1 polymorphism to regulate susceptibility to osteoporosis.
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Affiliation(s)
- H. Jin
- Rheumatic Disease Unit, Molecular Medicine Centre, Institute of Genetics and Molecular Medicine, Western General Hospital, University of Edinburgh, Edinburgh EH4 2XU, UK
| | - E. Evangelou
- Clinical and Molecular Epidemiology Unit, Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, Greece
| | - J. P. A. Ioannidis
- Clinical and Molecular Epidemiology Unit, Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, Greece. Biomedical Research Institute, Foundation for Research and Technology-Hellas, Ioannina, Greece. Center for Genetic Epidemiology and Modeling, ICRHPS, and Tufts Clinical and Translational Science Institute, Tufts University School of Medicine, Boston, USA
| | - S. H. Ralston
- Rheumatic Disease Unit, Molecular Medicine Centre, Institute of Genetics and Molecular Medicine, Western General Hospital, University of Edinburgh, Edinburgh EH4 2XU, UK
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Rojo Venegas K, Aguilera Gómez M, Eisman JA, García Sánchez A, Faus Dader MJ, Calleja Hernández MA. Pharmacogenetics of osteoporosis-related bone fractures: moving towards the harmonization and validation of polymorphism diagnostic tools. Pharmacogenomics 2011; 11:1287-303. [PMID: 20860468 DOI: 10.2217/pgs.10.116] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Osteoporosis is one of the most common skeletal chronic conditions in developed countries, hip fracture being one of its major healthcare outcomes. There is considerable variation in the implementation of current pharmacological treatment and prevention, despite consistent recommendations and guidelines. Many studies have reported conflicting findings of genetic associations with bone density and turnover that might predict fracture risk. Moreover, it is not clear whether genetic differences exist in relation to the morbidity and efficiency of the pharmacotherapy treatments. Clinical response, including beneficial and adverse events associated with osteoporosis treatments, is highly variable among individuals. In this context, the present article intends to summarize putative candidate genes and genome-wide association studies that have been related with BMD and fracture risk, and to draw the attention to the need for pharmacogenetic methodology that could be applicable in clinical translational research after an adequate validation process. This article mainly compiles analysis of important polymorphisms in osteoporosis documented previously, and it describes the simple molecular biology tools for routine genotype acquisition. Validation of methods for the easy, fast and accessible identification of SNPs is necessary for evolving pharmacogenetic diagnostic tools in order to contribute to the discovery of clinically relevant genetic variation with an impact on osteoporosis and its personalized treatment.
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Affiliation(s)
- Karen Rojo Venegas
- Pharmacogenetics Unit, Pharmacy Service, University Hospital Virgen de las Nieves, Avenida de las Fuerzas Armadas 2, CP:18014, Granada, Spain.
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Silvano L, Miras M, Pérez A, Picotto G, Díaz de Barboza G, Muñoz L, Martin S, Sobrero G, Armelini P, Mericq V, Tolosa de Talamoni N. Comparative analysis of clinical, biochemical and genetic aspects associated with bone mineral density in small for gestational age children. J Pediatr Endocrinol Metab 2011; 24:511-7. [PMID: 21932590 DOI: 10.1515/jpem.2011.196] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Clinical, biochemical and genetic analysis related to bone mineral density (BMD) were carried out in children born small for gestational age (SGA) that failed to achieve postnatal catch-up growth (CUG), SGA children that completed CUG and adequate for gestational age (AGA) children. Serum IGF-I, IGF-II, IGF binding protein-3 and acid-labile subunit were lower in the SGA-CUG children as compared with the other groups. Frequencies of polymorphic variants of vitamin D receptor, estrogen receptor and collagen genes were similar among groups. The genotype 194-192 of the IGF-I gene was higher in the SGA-CUG and 196-192 was higher in the SGA+CUG group. In the SGA-CUG group, the genotype SS of the COLIA1 gene was associated with lower BMD. Therefore, IGF system and COLIA1 polymorphism distinguish prepubertal SGA-CUG children from the SGA+CUG children of the same age. Furthermore, COLIA1 polymorphism could be useful to predict osteopenia in SGA-CUG children.
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Affiliation(s)
- Liliana Silvano
- Servicio de Endocrinología, Hospital de Niños de la Santísima Trinidad, Córdoba, Argentina
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Falcón-Ramírez E, Casas-Avila L, Miranda A, Diez P, Castro C, Rubio J, Gómez R, Valdés-Flores M. Sp1 polymorphism in collagen I α1 gene is associated with osteoporosis in lumbar spine of Mexican women. Mol Biol Rep 2010; 38:2987-92. [PMID: 20146006 DOI: 10.1007/s11033-010-9963-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2009] [Accepted: 01/15/2010] [Indexed: 10/19/2022]
Abstract
The Sp1 binding site polymorphism in collagen type I alpha 1 gene (COLIA1) has been associated with osteoporosis (OP) and bone mineral density (BMD). The aim of this study was to explore the association of this polymorphism with OP and BMD in the Mexican population by polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP) procedure. Allelic and genotypic frequencies from the Sp1 polymorphism were determined in 100 women with OP, 100 women without OP and 500 subjects from general Mexican population (GMP). Distribution of Sp1 polymorphism was in Hardy-Weinberg equilibrium. In spite of population structure due to racial mix in Mexican population, associations with OP were demonstrated. The frequency of "s" allele was significantly higher in women with OP (35%) than in women without OP (11%; P < 0.00001). Interestingly, "ss" genotype, was exclusive of women with OP and was associated with low BMD (0.588 ± 0.077 g/cm(2)) in contrast to "SS" genotype (0.733 ± 0.039 g/cm(2); P = 0.0001). This work confirms the association of Sp1 polymorphism with low BMD and OP in Mexican population and make sure to use Sp1 as a genetic marker for OP in our population.
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Affiliation(s)
- Edith Falcón-Ramírez
- Department of Genetics, National Rehabilitation Institute, Calzada Mexico-Xochimilco No. 289, Arenal de Guadalupe, Tlalpan, CP 14389 Mexico City, Mexico.
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Li WF, Hou SX, Yu B, Li MM, Férec C, Chen JM. Genetics of osteoporosis: accelerating pace in gene identification and validation. Hum Genet 2009; 127:249-85. [PMID: 20101412 DOI: 10.1007/s00439-009-0773-z] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2009] [Accepted: 11/25/2009] [Indexed: 02/06/2023]
Abstract
Osteoporosis is characterized by low bone mineral density and structural deterioration of bone tissue, leading to an increased risk of fractures. It is the most common metabolic bone disorder worldwide, affecting one in three women and one in eight men over the age of 50. In the past 15 years, a large number of genes have been reported as being associated with osteoporosis. However, only in the past 4 years we have witnessed an accelerated pace in identifying and validating osteoporosis susceptibility loci. This increase in pace is mostly due to large-scale association studies, meta-analyses, and genome-wide association studies of both single nucleotide polymorphisms and copy number variations. A comprehensive review of these developments revealed that, to date, at least 15 genes (VDR, ESR1, ESR2, LRP5, LRP4, SOST, GRP177, OPG, RANK, RANKL, COLIA1, SPP1, ITGA1, SP7, and SOX6) can be reasonably assigned as confirmed osteoporosis susceptibility genes, whereas, another >30 genes are promising candidate genes. Notably, confirmed and promising genes are clustered in three biological pathways, the estrogen endocrine pathway, the Wnt/beta-catenin signaling pathway, and the RANKL/RANK/OPG pathway. New biological pathways will certainly emerge when more osteoporosis genes are identified and validated. These genetic findings may provide new routes toward improved therapeutic and preventive interventions of this complex disease.
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Affiliation(s)
- Wen-Feng Li
- Department of Orthopaedics, The First Affiliated Hospital, General Hospital of the People's Liberation Army, 100037 Beijing, China
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Ji GR, Yao M, Sun CY, Zhang L, Han Z. Association of Collagen Type I α1 (COLIA1) Sp1 Polymorphism with Osteoporotic Fracture in Caucasian Post-menopausal Women: a Meta-analysis. J Int Med Res 2009; 37:1725-32. [PMID: 20146870 DOI: 10.1177/147323000903700608] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
This study was designed to summarize quantitatively the evidence for a relationship between collagen type I α1 (COLIA1) Sp1 polymorphism and osteoporotic fracture risk in Caucasian post-menopausal women. This meta-analysis included 16 studies, which analysed 2294 patients with fractures and 10285 controls. The combined results showed that there was a significant difference in genotype distribution (SS odds ratio [OR] 0.72; Ss OR 1.18; ss OR 1.97) between patients with fractures and controls. When stratifying by the fracture site, it was found that: (i) patients with vertebral fractures had a significantly higher frequency of the Ss genotype and a lower frequency of the SS genotype than controls; and (ii) patients with non-vertebral fractures had a significantly higher frequency of the ss genotype and a lower frequency of the SS genotype than controls. This meta-analysis suggests that the COLIA1 Sp1 polymorphism may be associated with osteoporotic fracture in Caucasian post-menopausal women.
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Affiliation(s)
- G-R Ji
- Department of Orthopaedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - M Yao
- Department of Orthopaedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - C-Y Sun
- Department of Orthopaedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - L Zhang
- Department of Orthopaedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Z Han
- Department of Orthopaedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
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Jin H, van't Hof RJ, Albagha OME, Ralston SH. Promoter and intron 1 polymorphisms of COL1A1 interact to regulate transcription and susceptibility to osteoporosis. Hum Mol Genet 2009; 18:2729-38. [PMID: 19429913 DOI: 10.1093/hmg/ddp205] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Three polymorphisms (-1997G/T; -1663IndelT and +1245G/T) have been identified in the 5' flank of COL1A1 gene that are associated with osteoporosis but the underlying mechanism is unclear. Here we investigated the functional effects of these variants on COL1A1 transcription. Transcription was 2-fold higher with the osteoporosis-associated G-del-T haplotype compared with the common G-Ins-G haplotype. Gel shift assays showed that the region surrounding the -1663IndelT polymorphism recognized a complex of proteins essential for osteoblast differentiation and function including Nmp4 and Osterix, and the osteoporosis-associated -1663delT allele had increased binding affinity for this complex. Chromatin immunoprecipitation assays confirmed that the region flanking -1663insdelT bound a complex of proteins including Osterix and Nmp4 and also showed evidence of recruitment of Nmp4 to the Sp1 binding site in intron 1. Further studies showed that haplotype G-del-T had higher binding affinity for RNA polymerase II, consistent with increased transcription of the G-del-T allele and there was a significant inverse association between carriage of G-del-T and bone mineral density (BMD) in a cohort of 3270 Caucasian women. We conclude that common polymorphic variants in the 5' flank of COLIA1 regulate transcription by affecting DNA-protein interactions and that increased levels of transcription correlate with reduced BMD values in vivo. This is consistent with a model whereby increased COL1A1 transcription predisposes to osteoporosis, probably by increasing production of the alpha 1 chain and disrupting the normal ratio of collagen type 1 alpha 1 and alpha 2 chains.
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Affiliation(s)
- Huilin Jin
- Rheumatic Diseases Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
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Tegeder I, Lötsch J. Current evidence for a modulation of low back pain by human genetic variants. J Cell Mol Med 2009; 13:1605-1619. [PMID: 19228264 DOI: 10.1111/j.1582-4934.2009.00703.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The manifestation of chronic back pain depends on structural, psychosocial, occupational and genetic influences. Heritability estimates for back pain range from 30% to 45%. Genetic influences are caused by genes affecting intervertebral disc degeneration or the immune response and genes involved in pain perception, signalling and psychological processing. This inter-individual variability which is partly due to genetic differences would require an individualized pain management to prevent the transition from acute to chronic back pain or improve the outcome. The genetic profile may help to define patients at high risk for chronic pain. We summarize genetic factors that (i) impact on intervertebral disc stability, namely Collagen IX, COL9A3, COL11A1, COL11A2, COL1A1, aggrecan (AGAN), cartilage intermediate layer protein, vitamin D receptor, metalloproteinsase-3 (MMP3), MMP9, and thrombospondin-2, (ii) modify inflammation, namely interleukin-1 (IL-1) locus genes and IL-6 and (iii) and pain signalling namely guanine triphosphate (GTP) cyclohydrolase 1, catechol-O-methyltransferase, mu opioid receptor (OPMR1), melanocortin 1 receptor (MC1R), transient receptor potential channel A1 and fatty acid amide hydrolase and analgesic drug metabolism (cytochrome P450 [CYP]2D6, CYP2C9).
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Affiliation(s)
- Irmgard Tegeder
- pharmazentrum Frankfurt/ZAFES, Klinikum der Goethe-Universität Frankfurt am Main, Theodor-Stern-Kai, Frankfurt am Main, Germany
| | - Jörn Lötsch
- pharmazentrum Frankfurt/ZAFES, Klinikum der Goethe-Universität Frankfurt am Main, Theodor-Stern-Kai, Frankfurt am Main, Germany
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Husted LB, Harsløf T, Gonzalez-Bofill N, Schmitz A, Carstens M, Stenkjaer L, Langdahl BL. Haplotypes of promoter and intron 1 polymorphisms in the COLIA1 gene are associated with increased risk of osteoporosis. Calcif Tissue Int 2009; 84:85-96. [PMID: 19082910 DOI: 10.1007/s00223-008-9199-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2008] [Accepted: 11/07/2008] [Indexed: 10/21/2022]
Abstract
Osteoporosis is a common age-related disease with a strong genetic influence. COLIA1 is one of the most extensively studied candidate genes and has consistently been associated with BMD and fracture. We examined the effects of the polymorphisms -1997G>T, -1663indelT, and +1245G>T and their haplotypes on vertebral fractures and bone mineral density (BMD) in a case-control study comprising 462 osteoporotic patients and 336 controls. The -1663indelT polymorphism was associated with a decreased lumbar spine (ls) BMD, 0.75 +/- 0.14 g/cm(2), in individuals with the del/del genotype versus 0.83 +/- 0.18 and 0.85 +/- 0.18 g/cm(2) in individuals with the ins/del and ins/ins genotypes, respectively (p = 0.02). The T-allele of the +1245G>T polymorphism, which was in strong linkage disequilibrium (LD) with -1663indelT, was also associated with a decreased lsBMD (p = 0.02). -1997G>T was not significantly associated with lsBMD. The three most common haplotypes accounted for 98.5% of the alleles. Individuals with one or two copies of haplotype 1 (-1997G/-1663ins/+1245G) had a significantly higher lsBMD, 0.84 +/- 0.18 and 0.85 +/- 0.15 g/cm(2), respectively, versus 0.78 +/- 0.15 g/cm(2) in noncarriers (p = 0.01). Individuals with two copies of haplotype 2 (-1997G/-1663del/+1245T) had a significantly lower lsBMD, 0.76 +/- 0.14 g/cm(2), versus 0.85 +/- 0.18 and 0.82 +/- 0.18 g/cm(2), respectively, in individuals with zero or one copy (p = 0.03). The odds ratio for vertebral fracture in individuals carrying the variant T-allele of the -1997G>T polymorphism was 1.49 (CI, 1.03-2.16; p = 0.03). Logistic regression revealed that this effect was partly independent of BMD. In conclusion, the -1663del and +1245T alleles influence BMD negatively, whereas the -1997T-allele has a minor effect on BMD but increases the risk of vertebral fractures. These findings are in agreement with functional studies showing that these polymorphisms influence gene expression.
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Affiliation(s)
- L B Husted
- Department of Endocrinology and Metabolism, Aarhus University Hospital, Tage-Hansens Gade 2, 8000 Aarhus C, Denmark
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Guo Y, Yang TL, Pan F, Xu XH, Dong SS, Deng HW. Molecular genetic studies of gene identification for osteoporosis. Expert Rev Endocrinol Metab 2008; 3:223-267. [PMID: 30764094 DOI: 10.1586/17446651.3.2.223] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This review comprehensively summarizes the most important and representative molecular genetics studies of gene identification for osteoporosis published up to the end of September 2007. It is intended to constitute a sequential update of our previously published reviews covering the available data up to the end of 2004. Evidence from candidate gene-association studies, genome-wide linkage and association studies, as well as functional genomic studies (including gene-expression microarray and proteomics) on osteogenesis and osteoporosis, are reviewed separately. Studies of transgenic and knockout mice models relevant to osteoporosis are summarized. The major results of all studies are tabulated for comparison and ease of reference. Comments are made on the most notable findings and representative studies for their potential influence and implications on our present understanding of genetics of osteoporosis. The format adopted by this review should be ideal for accommodating future new advances and studies.
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Affiliation(s)
- Yan Guo
- a The Key Laboratory of Biomedical Information Engineering of Ministry of Education and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Tie-Lin Yang
- a The Key Laboratory of Biomedical Information Engineering of Ministry of Education and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Feng Pan
- a The Key Laboratory of Biomedical Information Engineering of Ministry of Education and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Xiang-Hong Xu
- a The Key Laboratory of Biomedical Information Engineering of Ministry of Education and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Shan-Shan Dong
- a The Key Laboratory of Biomedical Information Engineering of Ministry of Education and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Hong-Wen Deng
- b The Key Laboratory of Biomedical Information Engineering of Ministry of Education and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China and Departments of Orthopedic Surgery and Basic Medical Sciences, University of Missouri - Kansas City, Kansas City, MO 64108, USA.
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