1
|
Novakov V, Novakova O, Churnosova M, Aristova I, Ponomarenko M, Reshetnikova Y, Churnosov V, Sorokina I, Ponomarenko I, Efremova O, Orlova V, Batlutskaya I, Polonikov A, Reshetnikov E, Churnosov M. Polymorphism rs143384 GDF5 reduces the risk of knee osteoarthritis development in obese individuals and increases the disease risk in non-obese population. ARTHROPLASTY 2024; 6:12. [PMID: 38424630 PMCID: PMC10905832 DOI: 10.1186/s42836-023-00229-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 12/26/2023] [Indexed: 03/02/2024] Open
Abstract
BACKGROUND We investigated the effect of obesity on the association of genome-wide associative studies (GWAS)-significant genes with the risk of knee osteoarthritis (KOA). METHODS All study participants (n = 1,100) were divided into 2 groups in terms of body mass index (BMI): BMI ≥ 30 (255 KOA patients and 167 controls) and BMI < 30 (245 KOA and 433 controls). The eight GWAS-significant KOA single nucleotide polymorphisms (SNP) of six candidate genes, such as LYPLAL1 (rs2820436, rs2820443), SBNO1 (rs1060105, rs56116847), WWP2 (rs34195470), NFAT5 (rs6499244), TGFA (rs3771501), GDF5 (rs143384), were genotyped. Logistic regression analysis (gPLINK online program) was used for SNPs associations study with the risk of developing KOA into 2 groups (BMI ≥ 30 and BMI < 30) separately. The functional effects of KOA risk loci were evaluated using in silico bioinformatic analysis. RESULTS Multidirectional relationships of the rs143384 GDF5 with KOA in BMI-different groups were found: This SNP was KOA protective locus among individuals with BMI ≥ 30 (OR 0.41 [95%CI 0.20-0.94] recessive model) and was disorder risk locus among individuals with BMI < 30 (OR 1.32 [95%CI 1.05-1.65] allele model, OR 1.44 [95%CI 1.10-1.86] additive model, OR 1.67 [95%CI 1.10-2.52] dominant model). Polymorphism rs143384 GDF5 manifested its regulatory effects in relation to nine genes (GDF5, CPNE1, EDEM2, ERGIC3, GDF5OS, PROCR, RBM39, RPL36P4, UQCC1) in adipose tissue, which were involved in the regulation of pathways of apoptosis of striated muscle cells. CONCLUSIONS In summary, the effect of obesity on the association of the rs143384 GDF5 with KOA was shown: the "protective" value of this polymorphism in the BMI ≥ 30 group and the "risk" meaning in BMI < 30 cohort.
Collapse
Affiliation(s)
- Vitaly Novakov
- Department of Medical Biological Disciplines, Belgorod State National Research University, Belgorod, 308015, Russia
| | - Olga Novakova
- Department of Medical Biological Disciplines, Belgorod State National Research University, Belgorod, 308015, Russia
| | - Maria Churnosova
- Department of Medical Biological Disciplines, Belgorod State National Research University, Belgorod, 308015, Russia
| | - Inna Aristova
- Department of Medical Biological Disciplines, Belgorod State National Research University, Belgorod, 308015, Russia
| | - Marina Ponomarenko
- Department of Medical Biological Disciplines, Belgorod State National Research University, Belgorod, 308015, Russia
| | - Yuliya Reshetnikova
- Department of Medical Biological Disciplines, Belgorod State National Research University, Belgorod, 308015, Russia
| | - Vladimir Churnosov
- Department of Medical Biological Disciplines, Belgorod State National Research University, Belgorod, 308015, Russia
| | - Inna Sorokina
- Department of Medical Biological Disciplines, Belgorod State National Research University, Belgorod, 308015, Russia
| | - Irina Ponomarenko
- Department of Medical Biological Disciplines, Belgorod State National Research University, Belgorod, 308015, Russia
| | - Olga Efremova
- Department of Medical Biological Disciplines, Belgorod State National Research University, Belgorod, 308015, Russia
| | - Valentina Orlova
- Department of Medical Biological Disciplines, Belgorod State National Research University, Belgorod, 308015, Russia
| | - Irina Batlutskaya
- Department of Medical Biological Disciplines, Belgorod State National Research University, Belgorod, 308015, Russia
| | - Alexey Polonikov
- Department of Medical Biological Disciplines, Belgorod State National Research University, Belgorod, 308015, Russia
- Department of Biology, Medical Genetics and Ecology and Research Institute for Genetic and Molecular Epidemiology, Kursk State Medical University, Kursk, 305041, Russia
| | - Evgeny Reshetnikov
- Department of Medical Biological Disciplines, Belgorod State National Research University, Belgorod, 308015, Russia
| | - Mikhail Churnosov
- Department of Medical Biological Disciplines, Belgorod State National Research University, Belgorod, 308015, Russia.
| |
Collapse
|
2
|
Zhao K, Nie L, Chin GMJ, Ye X, Sun P. Association between fat mass and obesity-related variant and osteoarthritis risk: Integrated meta-analysis with bioinformatics. Front Med (Lausanne) 2022; 9:1024750. [PMID: 36213660 PMCID: PMC9537627 DOI: 10.3389/fmed.2022.1024750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 09/02/2022] [Indexed: 11/29/2022] Open
Abstract
Objective The association of fat mass and obesity-related (FTO) gene with osteoarthritis (OA) risk has been investigated in multiple genome-wide association studies but showed inconsistent results. Our study aimed to assess FTO expression in different OA sequencing datasets and to meta-analyze whether FTO polymorphism was associated with the risk of osteoarthritis. Method Gene expression profiles were obtained from ArrayExpress, Gene Expression Omnibus (GEO), and BioProject databases. Three electronic databases including PubMed and EMBASE were systematically retrieved to identify articles exploring the association between FTO polymorphisms and OA risk published before September 2022. Summary odds ratios (ORs) and corresponding 95% confidence intervals (95% CIs) were calculated to perform the result. Stata software was utilized to conduct analyses on predetermined ethnicity and gender subgroups and sensitivity. Results FTO gene was differentially expressed in the datasets from the UK. This systematic review and meta-analysis encompasses eight studies that revealed a significant association between FTO polymorphisms and OA risk [OR 1.07, 95% CI (1.03, 1.11), P < 0.001] in the overall population. In subgroup analysis, a marked association was observed in European Caucasian [OR 1.08, 95% CI (1.04–1.12), P < 0.001] and North American Caucasian with the Asian subgroups [OR 0.98, 95% CI (0.83–1. 6), P = 0.83] as an exception. Among the studies, four of them demonstrated attenuation in their OA risk after body mass index (BMI) adjustment in Caucasian populations. Conclusion FTO significant differential expression was associated with the increased risk of OA in Caucasian populations. Nevertheless, the causality between FTO polymorphisms and OA risk remains largely elusive. Hence, further studies with larger sample size are necessary to validate whether FTO gene polymorphism contributes to OA susceptibility.
Collapse
Affiliation(s)
- Kun Zhao
- Department of Rehabilitation Medicine, Center for Rehabilitation Medicine, Rehabilitation and Sports Medicine Research Institute of Zhejiang Province, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China
| | - Liuyan Nie
- Department of Rheumatology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Grace Min Jun Chin
- Zhejiang University-University of Edinburgh Institute, Zhejiang University, Hangzhou, China
| | - Xiangming Ye
- Department of Rehabilitation Medicine, Center for Rehabilitation Medicine, Rehabilitation and Sports Medicine Research Institute of Zhejiang Province, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China
| | - Peng Sun
- Department of Rehabilitation Medicine, Center for Rehabilitation Medicine, Rehabilitation and Sports Medicine Research Institute of Zhejiang Province, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China
- *Correspondence: Peng Sun,
| |
Collapse
|
3
|
Lv G, Wang B, Li L, Li Y, Li X, He H, Kuang L. Exosomes from dysfunctional chondrocytes affect osteoarthritis in Sprague-Dawley rats through FTO-dependent regulation of PIK3R5 mRNA stability. Bone Joint Res 2022; 11:652-668. [PMID: 36066338 PMCID: PMC9533253 DOI: 10.1302/2046-3758.119.bjr-2021-0443.r2] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aims Exosomes (exo) are involved in the progression of osteoarthritis (OA). This study aimed to investigate the function of dysfunctional chondrocyte-derived exo (DC-exo) on OA in rats and rat macrophages. Methods Rat-derived chondrocytes were isolated, and DCs induced with interleukin (IL)-1β were used for exo isolation. Rats with OA (n = 36) or macrophages were treated with DC-exo or phosphate-buffered saline (PBS). Macrophage polarization and autophagy, and degradation and chondrocyte activity of cartilage tissues, were examined. RNA sequencing was used to detect genes differentially expressed in DC-exo, followed by RNA pull-down and ribonucleoprotein immunoprecipitation (RIP). Long non-coding RNA osteoarthritis non-coding transcript (OANCT) and phosphoinositide-3-kinase regulatory subunit 5 (PIK3R5) were depleted in DC-exo-treated macrophages and OA rats, in order to observe macrophage polarization and cartilage degradation. The PI3K/AKT/mammalian target of rapamycin (mTOR) pathway activity in cells and tissues was measured using western blot. Results DC-exo inhibited macrophage autophagy (p = 0.002) and promoted M1 macrophage polarization (p = 0.002). DC-exo at 20 μg/ml induced collagen degradation (p < 0.001) and inflammatory cell infiltration (p = 0.023) in rats. OANCT was elevated in DC (p < 0.001) and in cartilage tissues of OA patients (p < 0.001), and positively correlated with patients’ Kellgren-Lawrence grade (p < 0.001). PIK3R5 was increased in DC-exo-treated cartilage tissues (p < 0.001), and OANCT bound to fat mass and obesity-associated protein (FTO) (p < 0.001). FTO bound to PIK3R5 (p < 0.001) to inhibit the stability of PIK3R5 messenger RNA (mRNA) (p < 0.001) and disrupt the PI3K/AKT/mTOR pathway (p < 0.001). Conclusion Exosomal OANCT from DC could bind to FTO protein, thereby maintaining the mRNA stability of PIK3R5, further activating the PI3K/AKT/mTOR pathway to exacerbate OA. Cite this article: Bone Joint Res 2022;11(9):652–668.
Collapse
Affiliation(s)
- Guohua Lv
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Bing Wang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Lei Li
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Yunchao Li
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Xinyi Li
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Haoyu He
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Lei Kuang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| |
Collapse
|
4
|
Li H, Xiao W, He Y, Wen Z, Cheng S, Zhang Y, Li Y. Novel Insights Into the Multifaceted Functions of RNA n 6-Methyladenosine Modification in Degenerative Musculoskeletal Diseases. Front Cell Dev Biol 2022; 9:766020. [PMID: 35024366 PMCID: PMC8743268 DOI: 10.3389/fcell.2021.766020] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 11/05/2021] [Indexed: 12/13/2022] Open
Abstract
N6-methyladenosine (m6A) is an important modification of eukaryotic mRNA. Since the first discovery of the corresponding demethylase and the subsequent identification of m6A as a dynamic modification, the function and mechanism of m6A in mammalian gene regulation have been extensively investigated. “Writer”, “eraser” and “reader” proteins are key proteins involved in the dynamic regulation of m6A modifications, through the anchoring, removal, and interpretation of m6A modifications, respectively. Remarkably, such dynamic modifications can regulate the progression of many diseases by affecting RNA splicing, translation, export and degradation. Emerging evidence has identified the relationship between m6A modifications and degenerative musculoskeletal diseases, such as osteoarthritis, osteoporosis, sarcopenia and degenerative spinal disorders. Here, we have comprehensively summarized the evidence of the pathogenesis of m6A modifications in degenerative musculoskeletal diseases. Moreover, the potential molecular mechanisms, regulatory functions and clinical implications of m6A modifications are thoroughly discussed. Our review may provide potential prospects for addressing key issues in further studies.
Collapse
Affiliation(s)
- Hengzhen Li
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - WenFeng Xiao
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Yuqiong He
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Zeqin Wen
- Department of Clinical Medicine, Xiangya School of Medicine of Central South University, Changsha, China
| | - Siyuan Cheng
- Department of Clinical Medicine, Xiangya School of Medicine of Central South University, Changsha, China
| | - Yi Zhang
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Yusheng Li
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| |
Collapse
|
5
|
Li Y, Liu F, Xu X, Zhang H, Lu M, Gao W, Yin L, Yin Z. A novel variant near LSP1P3 is associated with knee osteoarthritis in the Chinese population. Clin Rheumatol 2020; 39:2393-2398. [DOI: 10.1007/s10067-020-04995-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 02/07/2020] [Accepted: 02/14/2020] [Indexed: 11/29/2022]
|
6
|
Collins KH, Hart DA, Seerattan RA, Reimer RA, Herzog W. High-fat/high-sucrose diet-induced obesity results in joint-specific development of osteoarthritis-like degeneration in a rat model. Bone Joint Res 2018; 7:274-281. [PMID: 29922445 PMCID: PMC5987701 DOI: 10.1302/2046-3758.74.bjr-2017-0201.r2] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Objectives Metabolic syndrome and low-grade systemic inflammation are associated with knee osteoarthritis (OA), but the relationships between these factors and OA in other synovial joints are unclear. The aim of this study was to determine if a high-fat/high-sucrose (HFS) diet results in OA-like joint damage in the shoulders, knees, and hips of rats after induction of obesity, and to identify potential joint-specific risks for OA-like changes. Methods A total of 16 male Sprague-Dawley rats were allocated to either the diet-induced obesity group (DIO, 40% fat, 45% sucrose, n = 9) or a chow control diet (n = 7) for 12 weeks. At sacrifice, histological assessments of the shoulder, hip, and knee joints were performed. Serum inflammatory mediators and body composition were also evaluated. The total Mankin score for each animal was assessed by adding together the individual Modified Mankin scores across all three joints. Linear regression modelling was conducted to evaluate predictive relationships between serum mediators and total joint damage. Results The HFS diet, in the absence of trauma, resulted in increased joint damage in the shoulder and knee joints of rats. Hip joint damage, however, was not significantly affected by DIO, consistent with findings in human studies. The total Mankin score was increased in DIO animals compared with the chow group, and was associated with percentage of body fat. Positive significant predictive relationships for total Mankin score were found between body fat and two serum mediators (interleukin 1 alpha (IL-1α) and vascular endothelial growth factor (VEGF)). Conclusion Systemic inflammatory alterations from DIO in this model system may result in a higher risk for development of knee, shoulder, and multi-joint damage with a HFS diet.Cite this article: K. H. Collins, D. A. Hart, R. A. Seerattan, R. A. Reimer, W. Herzog. High-fat/high-sucrose diet-induced obesity results in joint-specific development of osteoarthritis-like degeneration in a rat model. Bone Joint Res 2018;7:274-281. DOI: 10.1302/2046-3758.74.BJR-2017-0201.R2.
Collapse
Affiliation(s)
- K H Collins
- Human Performance Laboratory, McCaig Institute for Bone and Joint Health, and Biomedical Engineering Program, University of Calgary, Calgary, Canada
| | - D A Hart
- Human Performance Laboratory, McCaig Institute for Bone and Joint Health, Biomedical Engineering Program, and Department of Biochemistry and Molecular Biology, University of Calgary, and Alberta Health Services Bone & Joint Health Strategic Clinical Network, Calgary, Canada
| | - R A Seerattan
- Human Performance Laboratory, University of Calgary, Calgary, Canada
| | - R A Reimer
- Human Performance Laboratory and Department of Biochemistry and Molecular Biology, University of Calgary, Calgary, Canada
| | - W Herzog
- Human Performance Laboratory, McCaig Institute for Bone and Joint Health, and Biomedical Engineering Program, University of Calgary, Calgary, Canada
| |
Collapse
|
7
|
Dai J, Ying P, Shi D, Hou H, Sun Y, Xu Z, Chen D, Zhang G, Ni M, Teng H, Wang Y, Jiang Q. FTO variant is not associated with osteoarthritis in the Chinese Han population: replication study for a genome-wide association study identified risk loci. J Orthop Surg Res 2018; 13:65. [PMID: 29606151 PMCID: PMC5879643 DOI: 10.1186/s13018-018-0769-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 03/16/2018] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Osteoarthritis is the most prevalent form of arthritis worldwide and is the major cause of pain and loss of function in elderly people. A signal of the fat mass and obesity-associated (FTO) gene had been reported in a genome-wide association study of osteoarthritis. The FTO polymorphism (rs8044769) might exert its effect on osteoarthritis through obesity, because it was reported as a body mass index-associated single-nucleotide polymorphism. And replication studies showed inconsistent results for this association. Our present study is to check the association of rs8044769 with osteoarthritis and body mass index in Chinese Han population. METHODS A case-control association study was conducted by using 890 osteoarthritis cases and 844 controls in Chinese Han population. rs8044769 was genotyped in all subjects. Allelic and genotypic frequencies were compared between osteoarthritis cases and control subjects. Associations between rs8044769 and body mass index, and body mass index and osteoarthritis were also assessed. RESULTS No significant difference was detected in genotype or allele distribution between osteoarthritis cases and controls (P > 0.05). Stratification by gender and body mass index revealed negative association between rs8044769 and osteoarthritis. We did not find any solid association between rs8044769 and higher body mass index. Meanwhile, we demonstrated that higher body mass index (body mass index ≥ 25) was associated with osteoarthritis. CONCLUSION Our present study suggested that rs8044769 was not associated with osteoarthritis susceptibility or higher body mass index, and higher body mass index was a risk factor for osteoarthritis in the Chinese Han population. We also proposed that stratification by clinical parameters was crucial to reduce false-positive result in OA association studies.
Collapse
Affiliation(s)
- Jin Dai
- The department of Sports Medicine and Adult Reconstructive Surgery, Drum Tower Hospital, School of Medicine, Nanjing University, 321 Zhongshan Road, Nanjing, 210009, Jiangsu, China.,Laboratory for Bone and Joint Diseases, Australia-China Joint Centre, Model Animal Research Center, Nanjing University, 12 Xuefu Road, Nanjing, 210061, China
| | - Pu Ying
- The department of Sports Medicine and Adult Reconstructive Surgery, Drum Tower Hospital, School of Medicine, Nanjing University, 321 Zhongshan Road, Nanjing, 210009, Jiangsu, China.,Laboratory for Bone and Joint Diseases, Australia-China Joint Centre, Model Animal Research Center, Nanjing University, 12 Xuefu Road, Nanjing, 210061, China
| | - Dongquan Shi
- The department of Sports Medicine and Adult Reconstructive Surgery, Drum Tower Hospital, School of Medicine, Nanjing University, 321 Zhongshan Road, Nanjing, 210009, Jiangsu, China.,Laboratory for Bone and Joint Diseases, Australia-China Joint Centre, Model Animal Research Center, Nanjing University, 12 Xuefu Road, Nanjing, 210061, China
| | - Huacheng Hou
- The department of Sports Medicine and Adult Reconstructive Surgery, Drum Tower Hospital, School of Medicine, Nanjing University, 321 Zhongshan Road, Nanjing, 210009, Jiangsu, China.,Laboratory for Bone and Joint Diseases, Australia-China Joint Centre, Model Animal Research Center, Nanjing University, 12 Xuefu Road, Nanjing, 210061, China
| | - Ye Sun
- The department of Sports Medicine and Adult Reconstructive Surgery, Drum Tower Hospital, School of Medicine, Nanjing University, 321 Zhongshan Road, Nanjing, 210009, Jiangsu, China.,Laboratory for Bone and Joint Diseases, Australia-China Joint Centre, Model Animal Research Center, Nanjing University, 12 Xuefu Road, Nanjing, 210061, China
| | - Zhihong Xu
- The department of Sports Medicine and Adult Reconstructive Surgery, Drum Tower Hospital, School of Medicine, Nanjing University, 321 Zhongshan Road, Nanjing, 210009, Jiangsu, China.,Laboratory for Bone and Joint Diseases, Australia-China Joint Centre, Model Animal Research Center, Nanjing University, 12 Xuefu Road, Nanjing, 210061, China
| | - Dongyang Chen
- The department of Sports Medicine and Adult Reconstructive Surgery, Drum Tower Hospital, School of Medicine, Nanjing University, 321 Zhongshan Road, Nanjing, 210009, Jiangsu, China.,Laboratory for Bone and Joint Diseases, Australia-China Joint Centre, Model Animal Research Center, Nanjing University, 12 Xuefu Road, Nanjing, 210061, China
| | - Guoqiang Zhang
- Department of Orthopaedics, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China
| | - Ming Ni
- Department of Orthopaedics, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China
| | - Huajian Teng
- Laboratory for Bone and Joint Diseases, Australia-China Joint Centre, Model Animal Research Center, Nanjing University, 12 Xuefu Road, Nanjing, 210061, China
| | - Yan Wang
- Department of Orthopaedics, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China.
| | - Qing Jiang
- The department of Sports Medicine and Adult Reconstructive Surgery, Drum Tower Hospital, School of Medicine, Nanjing University, 321 Zhongshan Road, Nanjing, 210009, Jiangsu, China. .,Laboratory for Bone and Joint Diseases, Australia-China Joint Centre, Model Animal Research Center, Nanjing University, 12 Xuefu Road, Nanjing, 210061, China.
| |
Collapse
|
8
|
Yang Q, Xiao T, Guo J, Su Z. Complex Relationship between Obesity and the Fat Mass and Obesity Locus. Int J Biol Sci 2017; 13:615-629. [PMID: 28539834 PMCID: PMC5441178 DOI: 10.7150/ijbs.17051] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Accepted: 03/24/2017] [Indexed: 12/15/2022] Open
Abstract
In the 21st century, obesity has become a serious problem because of increasing obese patients and numerous metabolic complications. The primary reasons for this situation are environmental and genetic factors. In 2007, FTO (fat mass and obesity associated) was the first gene identified through a genome-wide association study (GWAS) associated with obesity in humans. Subsequently, a cluster of single nucleotide polymorphisms (SNPs) in the first intron of the FTO gene was discovered to be associated with BMI and body composition. Various studies have explored the mechanistic basis behind this association. Thus, emerging evidence showed that FTO plays a key role regulating adipose tissue development and functions in body size and composition. Recent prevalent research topic concentrated in the three neighboring genes of FTO: RPGRIP1L, IRX3 and IRX5, as having a functional link between obesity-associated common variants within FTO and the observed human phenotypes. The purpose of this review is to present a comprehensive picture of the impact of FTO on obesity susceptibility and to illuminate these new studies of FTO function in adipose tissue.
Collapse
Affiliation(s)
- Qingyun Yang
- Key Research Center of Liver Regulation for Hyperlipidemia SATCM/Class III Laboratory of Metabolism SATCM, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Tiancun Xiao
- Inorganic Chemistry Laboratory, Oxford University, South Parks Road, OX1 3QR, United Kingdom.,Guangzhou Boxabio Technology Ltd, Guangzhou Science City, P R China
| | - Jiao Guo
- Key Research Center of Liver Regulation for Hyperlipidemia SATCM/Class III Laboratory of Metabolism SATCM, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Zhengquan Su
- Key Research Center of Liver Regulation for Hyperlipidemia SATCM/Class III Laboratory of Metabolism SATCM, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| |
Collapse
|