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Zhou P, Li L, Lin Z, Ming X, Feng Y, Hu Y, Chen X. Exploring the Shared Genetic Architecture Between Obstructive Sleep Apnea and Body Mass Index. Nat Sci Sleep 2024; 16:711-723. [PMID: 38863482 PMCID: PMC11166156 DOI: 10.2147/nss.s459136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 05/25/2024] [Indexed: 06/13/2024] Open
Abstract
Purpose The reciprocal comorbidity of obstructive sleep apnea (OSA) and body mass index (BMI) has been observed, yet the shared genetic architecture between them remains unclear. This study aimed to explore the genetic overlaps between them. Methods Summary statistics were acquired from the genome-wide association studies (GWASs) on OSA (Ncase = 41,704; Ncontrol = 335,573) and BMI (Noverall = 461,460). A comprehensive genome-wide cross-trait analysis was performed to quantify global and local genetic correlation, infer the bidirectional causal relationships, detect independent pleiotropic loci, and investigate potential comorbid genes. Results A positive significant global genetic correlation between OSA and BMI was observed (r g = 0.52, P = 2.85e-122), which was supported by three local signal. The Mendelian randomization analysis confirmed bidirectional causal associations. In the meta-analysis of cross-traits GWAS, a total of 151 single-nucleotide polymorphisms were found to be pleiotropic between OSA and BMI. Additionally, we discovered that the genetic association between OSA and BMI is concentrated in 12 brain regions. Finally, a total 134 expression-tissue pairs were observed to have a significant impact on both OSA and BMI within the specified brain regions. Conclusion Our comprehensive genome-wide cross-trait analysis indicates a shared genetic architecture between OSA and BMI, offering new perspectives on the possible mechanisms involved.
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Affiliation(s)
- Peng Zhou
- Department of Otorhinolaryngology, Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
- Sleep Medicine Centre, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Ling Li
- Department of Nuclear Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Zehua Lin
- Department of Otorhinolaryngology, Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
- Sleep Medicine Centre, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Xiaoping Ming
- Department of Otorhinolaryngology, Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
- Sleep Medicine Centre, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Yiwei Feng
- Department of Otorhinolaryngology, Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
- Sleep Medicine Centre, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Yifan Hu
- Department of Otorhinolaryngology, Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
- Sleep Medicine Centre, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Xiong Chen
- Department of Otorhinolaryngology, Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
- Sleep Medicine Centre, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
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Wang R, Cheng F, Yang X. FTO attenuates the cytotoxicity of cisplatin in KGN granulosa cell-like tumour cells by regulating the Hippo/YAP1 signalling pathway. J Ovarian Res 2024; 17:62. [PMID: 38491479 PMCID: PMC10941382 DOI: 10.1186/s13048-024-01385-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 03/01/2024] [Indexed: 03/18/2024] Open
Abstract
Premature ovarian failure (POF) is a devastating condition for women under 40 years old. Chemotherapy, especially the use of cisplatin, has been demonstrated to promote the apoptosis of granulosa cells in primary and secondary follicles, leading to POF. Our previous studies demonstrated that fat mass- and obesity-associated (FTO) plays an essential role in protecting granulosa cells from cisplatin-induced cytotoxicity. Various studies have suggested that the Hippo/YAP signalling pathway plays a significant role in regulating cell apoptosis and proliferation. Additionally, YAP1 is the main downstream target of the Hippo signalling pathway and is negatively regulated by the Hippo signalling pathway. However, whether the Hippo/YAP signalling pathway is involved in the protective effect of FTO on granulosa cells has not been determined. In this study, we found that after cisplatin treatment, the apoptosis of granulosa cells increased in a concentration-dependent manner, accompanied by the downregulation of FTO and YAP1. Furthermore, overexpression of FTO decreased cisplatin-induced granulosa cell apoptosis, inhibited the Hippo/YAP kinase cascade-induced phosphorylation of YAP1, and promoted the entry of YAP1 into the nucleus. The downstream targets of YAP1 (CTGF, CYR61, and ANKRD1) were also increased. Si-RNA-mediated downregulation of FTO promoted cisplatin-induced granulosa cell apoptosis, activated the Hippo/YAP kinase cascade, and inhibited the YAP1 entry into the nucleus. These effects were completely reversed by the small molecule inhibitor of YAP1-verteporfin (VP). Taken together, these data suggested that FTO-YAP1 plays a positive role in regulating the proliferation of injured granulosa cells induced by cisplatin.
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Affiliation(s)
- Rongli Wang
- Department of Obstetrics and Gynecology, Peking University People's Hospital, No. 11, Xi-Zhi-Men South Street, Xi Cheng District, Beijing, 100044, China.
- Department of Obstetrics and Gynecology, First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, 710061, China.
| | - Feiyan Cheng
- Department of Obstetrics and Gynecology, First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Xinyuan Yang
- Department of Obstetrics and Gynecology, First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, 710061, China.
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George BT, Jhancy M, Dube R, Kar SS, Annamma LM. The Molecular Basis of Male Infertility in Obesity: A Literature Review. Int J Mol Sci 2023; 25:179. [PMID: 38203349 PMCID: PMC10779000 DOI: 10.3390/ijms25010179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 12/12/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024] Open
Abstract
The rising incidence of obesity has coincided with rising levels of poor reproductive outcomes. The molecular basis for the association of infertility in obese males is now being explained through various mechanisms. Insulin resistance, hyperglycemia, and changes in serum and gonadal concentrations of adipokines, like leptin, adiponectin, resistin, and ghrelin have been implicated as causes of male infertility in obese males. The effects of obesity and hypogonadism form a vicious cycle whereby dysregulation of the hypothalamic-pituitary-testicular axis-due to the effect of the release of multiple mediators, thus decreasing GnRH release from the hypothalamus-causes decreases in LH and FSH levels. This leads to lower levels of testosterone, which further increases adiposity because of increased lipogenesis. Cytokines such as TNF-α and interleukins, sirtuins, and other inflammatory mediators like reactive oxygen species are known to affect fertility in obese male adults. There is evidence that parental obesity can be transferred through subsequent generations to offspring through epigenetic marks. Thus, negative expressions like obesity and infertility have been linked to epigenetic marks being altered in previous generations. The interesting aspect is that these epigenetic expressions can be reverted by removing the triggering factors. These positive modifications are also transmitted to subsequent generations.
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Affiliation(s)
- Biji Thomas George
- Department of Surgery, RAK College of Medical Sciences, RAKMHSU, Ras al Khaimah P.O. Box 11172, United Arab Emirates
| | - Malay Jhancy
- Department of Pediatrics, RAK College of Medical Sciences, RAKMHSU, Ras al Khaimah P.O. Box 11172, United Arab Emirates; (M.J.); (S.S.K.)
| | - Rajani Dube
- Department of Obstetrics and Gynecology, RAK College of Medical Sciences, RAKMHSU, Ras al Khaimah P.O. Box 11172, United Arab Emirates;
| | - Subhranshu Sekhar Kar
- Department of Pediatrics, RAK College of Medical Sciences, RAKMHSU, Ras al Khaimah P.O. Box 11172, United Arab Emirates; (M.J.); (S.S.K.)
| | - Lovely Muthiah Annamma
- Department of Clinical Sciences, Ajman University, Ajman P.O. Box 346, United Arab Emirates;
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Zhuang X, Liu T, Wei L, Gao Y, Gao J. RNA sequencing reveals the mechanism of FTO in inhibiting inflammation and excessive proliferation of lipopolysaccharide-induced human glomerular mesangial cells. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:3835-3846. [PMID: 37358794 DOI: 10.1007/s00210-023-02570-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 06/06/2023] [Indexed: 06/27/2023]
Abstract
Chronic glomerulonephritis (CGN) is a leading cause of end-stage renal disease in China; thus, there is an urgent need for effective therapeutic targets and strategies for CGN treatment. However, studies on CGN pathogenesis are limited. In this study, we found that the fat mass and obesity-associated protein (FTO) was significantly decreased in the lipopolysaccharide (LPS)-induced human glomerular mesangial cells (HGMCs) (P < 0.01) and kidney tissues of CGN patients (P < 0.05). Moreover, double-labeling immunofluorescence and flow cytometry assays demonstrated that the overexpression of FTO could inhibit inflammation and excessive proliferation of HGMCs. Furthermore, RNA-sequencing (RNA-seq) and real-time quantitative polymerase chain reaction (RT-qPCR) analyses revealed that FTO overexpression induced differential expression of 269 genes (absolute fold change ≥ 2 and P-value < 0.05), including 143 upregulated and 126 downregulated genes. Further functional analysis of these differentially expressed genes by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses suggested that FTO possibly mediates its inhibitory function by regulating the mammalian target of rapamycin (mTOR) signaling pathway and substance metabolism. Lastly, analysis of the PPI network and further identification of the top 10 hub genes (RPS15, RPS18, RPL18A, GNB2L1, RPL19, EEF1A1, RPS25, FAU, UBA52, and RPS6) indicated that FTO mediates its function by affecting the ribosomal proteins. Therefore, in this study, we elucidated the important role of FTO in the regulation of inflammation and excessive proliferation of HGMCs, suggesting FTO administration as a suitable therapeutic intervention for CGN.
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Affiliation(s)
- Xingxing Zhuang
- Department of Pharmacy, Chaohu Hospital of Anhui Medical University, No. 64 North Chaohu Road, Chaohu, 238000, Anhui, China
- Department of Pharmacy, The First Affiliated Hospital of Anhui University of Chinese Medicine, No. 117 Meishan Road, Hefei, 230012, Anhui, China
| | - Tao Liu
- Department of Pharmacy, The First Affiliated Hospital of Anhui University of Chinese Medicine, No. 117 Meishan Road, Hefei, 230012, Anhui, China
| | - Liangbing Wei
- Department of Pharmacy, The First Affiliated Hospital of Anhui University of Chinese Medicine, No. 117 Meishan Road, Hefei, 230012, Anhui, China
| | - Yachen Gao
- Department of Nephropathy, The First Affiliated Hospital of Anhui University of Chinese Medicine, No. 117 Meishan Road, Hefei, 230012, Anhui, China
| | - Jiarong Gao
- Department of Pharmacy, The First Affiliated Hospital of Anhui University of Chinese Medicine, No. 117 Meishan Road, Hefei, 230012, Anhui, China.
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Naspolini NF, Sichieri R, Barbosa Cunha D, Alves Pereira R, Faerstein E. Dietary patterns, obesity markers and leukocyte telomere length among Brazilian civil servants: cross-sectional results from the Pro-Saude study. Public Health Nutr 2023; 26:2076-2082. [PMID: 37231745 PMCID: PMC10564599 DOI: 10.1017/s1368980023001064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 04/21/2023] [Accepted: 05/15/2023] [Indexed: 05/27/2023]
Abstract
OBJECTIVE Dietary patterns express the combination and variety of foods in the diet. The partial least squares method allows extracting dietary patterns related to a specific health outcome. Few studies have evaluated obesity-related dietary patterns associated with telomeres length. This study aims to identify dietary patterns explaining obesity markers and to assess their association with leukocyte telomere length (LTL), a biological marker of the ageing process. DESIGN Cross-sectional study. SETTING University campuses in the state of Rio de Janeiro, Brazil. PARTICIPANTS 478 participants of a civil servants' cohort study with data on food consumption, obesity measurements (total body fat, visceral fat, BMI, leptin and adiponectin) and blood samples. RESULTS Three dietary patterns were extracted: (1) fast food and meat; (2) healthy and (3) traditional pattern, which included rice and beans, the staple foods most consumed in Brazil. All three dietary patterns explained 23·2 % of food consumption variation and 10·7 % of the obesity-related variables. The fast food and meat pattern were the first factor extracted, explaining 11-13 % variation of the obesity-related response variables (BMI, total body fat and visceral fat), leptin and adiponectin showed the lowest percentage (4·5-0·1 %). The healthy pattern mostly explained leptin and adiponectin variations (10·7 and 3·3 %, respectively). The traditional pattern was associated with LTL (β = 0·0117; 95 % CI 0·0001, 0·0233) after adjustment for the other patterns, age, sex, exercise practice, income and energy intake. CONCLUSION Leukocyte telomere length was longer among participants eating a traditional dietary pattern that combines fruit, vegetables and beans.
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Affiliation(s)
| | - Rosely Sichieri
- Instituto de Medicina Social, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ20550-900, Brasil
| | - Diana Barbosa Cunha
- Instituto de Medicina Social, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ20550-900, Brasil
| | - Rosangela Alves Pereira
- Universidade Federal do Rio de Janeiro, Departamento de Nutrição Social e Aplicada, Rio de Janeiro, RJ, Brasil
| | - Eduardo Faerstein
- Instituto de Medicina Social, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ20550-900, Brasil
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Tucker LA, Brockbank JA. Weight Change over Ten Years Predicts Biological Aging in a Random Sample of 3070 U.S. Adults. Nutrients 2023; 15:2862. [PMID: 37447188 DOI: 10.3390/nu15132862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/16/2023] [Accepted: 06/22/2023] [Indexed: 07/15/2023] Open
Abstract
This investigation was designed to study the relationship between weight change over 10 years and leukocyte telomere length (LTL) in a large sample of 3070 randomly selected U.S. adults, 36-70 years old. The National Health and Nutrition Examination Survey (NHANES) data were used to examine the relationship between percent weight change and LTL. Potential mediating variables were controlled using partial correlation. After adjusting for age, race, year, and housing status, the association between percent weight change over 10 years and LTL was significant in women (F = 6.9, p = 0.0138). Adjusting for the demographic and several other covariates weakened the relationship slightly (F = 4.7, p = 0.0392). With all the covariates controlled, for each one percentage point increase in weight over the previous 10 years, telomeres were, on average, 3.48 base pairs (bp) shorter in women. Given that each one-year increase in age was associated with telomeres that were 15.0 bp shorter in women, the median weight change in U.S. women over the previous 10 years (an increase of 10.4%) was predictive of LTLs that were 36 bp shorter, on average, or an increase of 2.4 years of biological aging. Percent weight change over 10 years was not associated with LTL in U.S. men. Percent weight change over 10 years is a strong predictor of biological aging in U.S. women, but not in men.
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Affiliation(s)
- Larry A Tucker
- College of Life Sciences, Brigham Young University, Provo, UT 84602, USA
| | - Joshua A Brockbank
- School of Family Life, Human Development, Brigham Young University, Provo, UT 84602, USA
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Small AM, Peloso G, Linefsky J, Aragam J, Galloway A, Tanukonda V, Wang LC, Yu Z, Selvaraj MS, Farber-Eger EH, Baker MT, Setia-Verma S, Lee SSK, Preuss M, Ritchie M, Damrauer SM, Rader DJ, Wells QS, Loos RJF, Lubitz S, Thanassoulis G, Cho K, Wilson PWF, Natarajan P, O’Donnell CJ. Multiancestry Genome-Wide Association Study of Aortic Stenosis Identifies Multiple Novel Loci in the Million Veteran Program. Circulation 2023; 147:942-955. [PMID: 36802703 PMCID: PMC10806851 DOI: 10.1161/circulationaha.122.061451] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 12/15/2022] [Indexed: 02/22/2023]
Abstract
BACKGROUND Calcific aortic stenosis (CAS) is the most common valvular heart disease in older adults and has no effective preventive therapies. Genome-wide association studies (GWAS) can identify genes influencing disease and may help prioritize therapeutic targets for CAS. METHODS We performed a GWAS and gene association study of 14 451 patients with CAS and 398 544 controls in the Million Veteran Program. Replication was performed in the Million Veteran Program, Penn Medicine Biobank, Mass General Brigham Biobank, BioVU, and BioMe, totaling 12 889 cases and 348 094 controls. Causal genes were prioritized from genome-wide significant variants using polygenic priority score gene localization, expression quantitative trait locus colocalization, and nearest gene methods. CAS genetic architecture was compared with that of atherosclerotic cardiovascular disease. Causal inference for cardiometabolic biomarkers in CAS was performed using Mendelian randomization and genome-wide significant loci were characterized further through phenome-wide association study. RESULTS We identified 23 genome-wide significant lead variants in our GWAS representing 17 unique genomic regions. Of the 23 lead variants, 14 were significant in replication, representing 11 unique genomic regions. Five replicated genomic regions were previously known risk loci for CAS (PALMD, TEX41, IL6, LPA, FADS) and 6 were novel (CEP85L, FTO, SLMAP, CELSR2, MECOM, CDAN1). Two novel lead variants were associated in non-White individuals (P<0.05): rs12740374 (CELSR2) in Black and Hispanic individuals and rs1522387 (SLMAP) in Black individuals. Of the 14 replicated lead variants, only 2 (rs10455872 [LPA], rs12740374 [CELSR2]) were also significant in atherosclerotic cardiovascular disease GWAS. In Mendelian randomization, lipoprotein(a) and low-density lipoprotein cholesterol were both associated with CAS, but the association between low-density lipoprotein cholesterol and CAS was attenuated when adjusting for lipoprotein(a). Phenome-wide association study highlighted varying degrees of pleiotropy, including between CAS and obesity at the FTO locus. However, the FTO locus remained associated with CAS after adjusting for body mass index and maintained a significant independent effect on CAS in mediation analysis. CONCLUSIONS We performed a multiancestry GWAS in CAS and identified 6 novel genomic regions in the disease. Secondary analyses highlighted the roles of lipid metabolism, inflammation, cellular senescence, and adiposity in the pathobiology of CAS and clarified the shared and differential genetic architectures of CAS with atherosclerotic cardiovascular diseases.
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Affiliation(s)
- Aeron M Small
- Department of Cardiology, Boston Veterans Affairs Healthcare System, West Roxbury, MA, USA
- Cardiovascular Medicine Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, MA, USA
| | - Gina Peloso
- Massachusetts Veterans Epidemiology Research and Information Center (MAVERIC), Veterans Affairs, Boston Healthcare System, Boston, Massachusetts
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, United States
| | - Jason Linefsky
- Atlanta Veterans Affairs Medical Center, Decatur, Georgia
- Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Jayashri Aragam
- Department of Cardiology, Boston Veterans Affairs Healthcare System, West Roxbury, MA, USA
| | - Ashley Galloway
- Massachusetts Veterans Epidemiology Research and Information Center (MAVERIC), Veterans Affairs, Boston Healthcare System, Boston, Massachusetts
| | | | - Lu-Chen Wang
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA, USA, 02114
- Cardiovascular Disease Initiative, Broad Institute, Cambridge, MA, USA, 02142
| | - Zhi Yu
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA, USA, 02114
- Cardiovascular Disease Initiative, Broad Institute, Cambridge, MA, USA, 02142
- Program in Medical and Population Genetics, Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - Margaret Sunitha Selvaraj
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA, USA, 02114
- Program in Medical and Population Genetics, Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Department of Medicine, Harvard Medical School, Boston, Massachusetts
| | - Eric H Farber-Eger
- Vanderbilt Institute for Clinical and Translational Research, Vanderbilt University Medical Center, Nashville, TN, United States, 37232
| | - Michael T Baker
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Shefali Setia-Verma
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Simon SK Lee
- The Charles Bronfman Institute for Personalized Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA, 10029
| | - Michael Preuss
- The Charles Bronfman Institute for Personalized Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA, 10029
| | - Marylyn Ritchie
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Scott M Damrauer
- Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA, 19104
- Corporal Michael Crescenz VA Medical Center, Philadelphia, PA, USA, 19104
| | - Daniel J Rader
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Quinn S Wells
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232
- Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, TN 37232
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Ruth J F Loos
- The Charles Bronfman Institute for Personalized Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA, 10029
- The Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA, 10029
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark
| | - Steven Lubitz
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA, USA, 02114
| | - George Thanassoulis
- Department of Medicine, Division of Experimental Medicine, McGill University Health Center, 1001 Decarie Boulevard, Montreal, QC H4A 3J1, Canada
| | - Kelly Cho
- Massachusetts Veterans Epidemiology Research and Information Center (MAVERIC), Veterans Affairs, Boston Healthcare System, Boston, Massachusetts
| | - Peter WF Wilson
- Atlanta Veterans Affairs Medical Center, Decatur, Georgia
- Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia
| | | | - Pradeep Natarajan
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA, USA, 02114
- Cardiovascular Disease Initiative, Broad Institute, Cambridge, MA, USA, 02142
- Department of Medicine, Harvard Medical School, Boston, Massachusetts
- Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston
- Center for Genomic Medicine, Department of Medicine, Massachusetts General Hospital, Boston
| | - Christopher J O’Donnell
- Department of Cardiology, Boston Veterans Affairs Healthcare System, West Roxbury, MA, USA
- Cardiovascular Medicine Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, MA, USA
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8
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Ke S, Wang J, Lu J, Fang M, Li R. Long intergenic non-protein coding RNA 00858 participates in the occurrence and development of esophageal squamous cell carcinoma through the activation of the FTO-m6A-MYC axis by recruiting ZNF184. Genomics 2023; 115:110593. [PMID: 36868327 DOI: 10.1016/j.ygeno.2023.110593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 02/10/2023] [Accepted: 02/26/2023] [Indexed: 03/05/2023]
Abstract
OBJECTIVES We aimed at probing impact of LINC00858 on esophageal squamous cell carcinoma (ESCC) progression via ZNF184-FTO-m6A-MYC axis. METHODS Expression of related genes (LINC00858, ZNF184, FTO, and MYC) was detected in ESCC tissues or cells and their relationships were assessed. After expression alterations in ESCC cells, cell proliferation, invasion, migration, and apoptosis were detected. Tumor formation in nude mice was conducted. RESULTS LINC00858, ZNF184, FTO, and MYC were overexpressed in ESCC tissues and cells. LINC00858 enhanced ZNF184 expression to upregulate FTO, which augmented MYC expression. LINC00858 knockdown diminished ESCC cell proliferative, migratory, and invasive properties while elevating apoptosis, which was negated by FTO overexpression. FTO knockdown exerted similar functions of LINC00858 knockdown on ESCC cell movements, which was annulled by MYC upregulation. Silencing LINC00858 repressed tumor growth and related gene expression in nude mice. CONCLUSIONS LINC00858 modulated MYC m6A modification via FTO by recruiting ZNF184, thus facilitating ESCC progression.
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Affiliation(s)
- Shun Ke
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China; Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China
| | - Jing Wang
- Department of Clinical Oncology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430071, PR China
| | - Jun Lu
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China; Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China
| | - Minghao Fang
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China; Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China
| | - Ruichao Li
- Department of General Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China.
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Abstract
Cardiovascular disease (CVD) is the major cause of disability-adjusted life years (DALY) and death globally. The most common internal modification of mRNA is N6-adenosylate methylation (m6A). Recently, a growing number of studies have been devoted to researching cardiac remodeling mechanisms, especially m6A RNA methylation, revealing a connection between m6A and cardiovascular diseases. This review summarized the current understanding regarding m6A and elucidated the dynamic modifications of writers, erasers, and readers. Furthermore, we highlighted m6A RNA methylation related to cardiac remodeling and summarized its potential mechanisms. Finally, we discussed the potential of m6A RNA methylation in the treatment of cardiac remodeling.
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10
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Wang X, Wen J, Qu Q, Gu S, Zhang L, Li Y, Qi X. Association of weight range with telomere length: A retrospective cohort study. Front Endocrinol (Lausanne) 2023; 14:1106283. [PMID: 37113487 PMCID: PMC10126401 DOI: 10.3389/fendo.2023.1106283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 03/28/2023] [Indexed: 04/29/2023] Open
Abstract
Objective Previous research has shown a significant association between weight and telomere length, but did not take into consideration weight range. The study was to investigate the association of weight range with telomere length. Methods Data of 2918 eligible participants aged 25-84 years from the National Health and Nutrition Examination Survey (NHANES) 1999-2000 cycle were analyzed. Information about demographic variables, lifestyle factors, anthropometric variables, and medical comorbidities were included. Univariate and multivariate linear regression model with adjustments for potential confounders were employed to determine the association between weight range and telomere length. A non-parametrically restricted cubic spline model was used to illustrate the possible non-linear relationship. Results In univariate linear regression, BMImax, BMI range, and weight range all revealed significant negative associations with telomere length. However, annual rate of BMI/weight range showed a significant positive associations with telomere length. There was no significant association between telomere length and BMImin. After adjusting for potential confounders, the inverse associations persisted in BMImax (β=-0.003, P<0.001), BMI range (β=-0.002, P=0.003), and weight range (β=-0.001, P=0.001). Furthermore, annual rate of BMI range (β=-0.026, P=0.009) and weight range (β=-0.010, P=0.007) presented negative associations with telomere length, after adjusting for covariates in Model 2-4. The association between BMImin (β =-0.002, P=0.237) and telomere length still could not reach statistical significance in multivariate linear regression model. The results of restricted cubic spline analysis showed that BMImax (P for nonlinear =0.026), BMI range (P for nonlinear =0.022), weight range (P for nonlinear =0.035), annual rate of BMI range (P for nonlinear =0.030), and annual rate of weight range (P for nonlinear =0.027) all had nonlinear inverse associations with telomere length. Conclusions The study suggests that weight range is inversely associated with telomere length in U.S. adults. Larger weight fluctuation may accelerate telomere shortening and aging.
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Affiliation(s)
- Xinyu Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jingli Wen
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Qiang Qu
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Shujun Gu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Lixi Zhang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yu Li
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
- *Correspondence: Xu Qi, ; Yu Li,
| | - Xu Qi
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- Department of Respiratory and Critical Care Medicine, The Affiliated Jiangsu Shengze Hospital of Nanjing Medical University, Suzhou, China
- *Correspondence: Xu Qi, ; Yu Li,
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11
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Hu J, Song J, Chen Z, Yang J, Shi Q, Jin F, Pang Q, Chang X, Tian Y, Luo Y, Chen L. Reverse causal relationship between periodontitis and shortened telomere length: Bidirectional two-sample Mendelian random analysis. Front Immunol 2022; 13:1057602. [PMID: 36601105 PMCID: PMC9806346 DOI: 10.3389/fimmu.2022.1057602] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022] Open
Abstract
Background Observational studies have demonstrated a link between shortened telomere lengths(TL) and chronic periodontitis. However, whether the shortened TL is the cause or the result of periodontitis is unknown.Therefore, our objective was to investigate a bidirectional causal relationship between periodontitis and TL using a two-sample Mendel randomized (MR) study. Methods A two-sample bidirectional MR analysis using publicly available genome-wide association study (GWAS) data was used. As the primary analysis, inverse variance weighting (IVW) was employed. To identify pleiotropy, we used leave-one-out analysis, MR-Egger, Weighted median, Simple mode, Weighted mode, and MR pleiotropy residual sum and outlier (MR-PRESSO). Results In reverse MR results, a genetic prediction of short TL was causally associated with a higher risk of periodontitis (IVW: odds ratio [OR]: 1.0601, 95% confidence interval [CI]: 1.0213 to 1.1002; P =0.0021) and other complementary MR methods. In the forward MR analysis, periodontitis was shown to have no significant effect on TL (IVW: p = 0.7242), with consistent results for the remaining complementary MR. No pleiotropy was detected in sensitivity analysis (all P>0.05). Conclusion Our MR studies showed a reverse causal relationship, with shorten TL being linked to a higher risk of periodontitis, rather than periodontitis shorten that TL. Future research is needed to investigate the relationship between cell senescence and the disease.
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Affiliation(s)
- Jiaxin Hu
- Guiyang Hospital of Stomatology, Stomatology Hospital of Guizhou University, Guiyang, Guizhou, China,School of Stomatology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Jukun Song
- The Affiliated Stomatological Hospital & Stomatology of Guizhou Medical University, Guizhou Medical University, Guiyang, China
| | - Zhu Chen
- Guiyang Hospital of Stomatology, Stomatology Hospital of Guizhou University, Guiyang, Guizhou, China
| | - Jing Yang
- Guiyang Hospital of Stomatology, Stomatology Hospital of Guizhou University, Guiyang, Guizhou, China
| | - Qianhui Shi
- Guiyang Hospital of Stomatology, Stomatology Hospital of Guizhou University, Guiyang, Guizhou, China
| | - Fuqian Jin
- Guiyang Hospital of Stomatology, Stomatology Hospital of Guizhou University, Guiyang, Guizhou, China,School of Stomatology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Qiyuan Pang
- Guiyang Hospital of Stomatology, Stomatology Hospital of Guizhou University, Guiyang, Guizhou, China
| | - Xingtao Chang
- School of Stomatology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Yuan Tian
- Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Yi Luo
- Guiyang Hospital of Stomatology, Stomatology Hospital of Guizhou University, Guiyang, Guizhou, China,School of Stomatology, Zunyi Medical University, Zunyi, Guizhou, China,*Correspondence: Yi Luo, ; Liming Chen,
| | - Liming Chen
- Guiyang Hospital of Stomatology, Stomatology Hospital of Guizhou University, Guiyang, Guizhou, China,School of Stomatology, Zunyi Medical University, Zunyi, Guizhou, China,*Correspondence: Yi Luo, ; Liming Chen,
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12
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Liu H, Zheng YL, Wang XQ. The emerging roles of N 6-methyladenosine in osteoarthritis. Front Mol Neurosci 2022; 15:1040699. [PMID: 36466802 PMCID: PMC9710225 DOI: 10.3389/fnmol.2022.1040699] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 10/19/2022] [Indexed: 08/30/2023] Open
Abstract
Finding new biomarkers and molecular targets to guide OA treatment remains a significant challenge. One of the most frequent forms of RNA methylation, N6-methyladenosine (m6A), can affect gene expression and RNA transcription, processing, translation, and metabolism. Osteoarthritis (OA) can cause disability and pain degenerative disease, reduce the quality of life of the elderly, and increase the social and economic burden. Changes in m6A levels are crucial in OA progress. In this review, the discussion will concentrate on the role that m6A plays in OA occurrence and progression. The m6A involved in the OA process mainly includes METTL3 and FTO. Current studies on m6A and OA primarily focus on four signaling pathways, namely, NF-κB, LNCRNAs, ATG7, and Bcl2. m6A participates in these signaling pathways and affects cellular inflammation, apoptosis, senescence, and autophagy, thus controlling the OA process. The modification of m6A affects so many signaling pathways. For the treatment of OA, it may represent a viable new therapeutic target.
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Affiliation(s)
- Hui Liu
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
| | - Yi-Li Zheng
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
- Department of Rehabilitation Medicine, Shanghai Shangti Orthopaedic Hospital, Shanghai, China
| | - Xue-Qiang Wang
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
- Department of Rehabilitation Medicine, Shanghai Shangti Orthopaedic Hospital, Shanghai, China
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13
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Kahrizi MS, Patra I, Jalil AT, Achmad H, Alesaeidi S, Al-Gazally ME, Alesaeidi S. Leukocyte telomere length and obesity in children and adolescents: A systematic review and meta-analysis. Front Genet 2022; 13:861101. [PMID: 36160016 PMCID: PMC9490371 DOI: 10.3389/fgene.2022.861101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 07/20/2022] [Indexed: 11/24/2022] Open
Abstract
Background: Several studies have revealed the negative effects of adiposity on telomere length shortening. However, the results of the studies assessing the negative relationship between obesity and leukocyte telomere length (LTL) are not consistent. This systematic review and meta-analysis are aimed to pool the results of articles assessing the relationship between obesity and LTL among children and adolescents. Methods: To retrieve the related studies, four online databases including PubMed, Embase, ProQuest, and Scopus were searched until May 2022. Observational studies evaluating the relationship between obesity and LTL among apparently healthy children and adolescents (aged ≤18 years) were included in the study. We considered the studies that had reported a mean ± standard deviation of LTL. The random-effects model was used to assess the pooled weighted mean difference (WMD) and a 95% confidence interval (CI). Results: The search yielded seven studies from an initial 3,403 records identified. According to the results of seven articles with 4,546 participants, obesity was associated with LTL shortening among children and adolescents (WMD = -0.081; 95% CI: -0.137 to -0.026; p = 0.004; I2 = 99.9%). Also, no publication bias was observed. According to the results of subgrouping, significant results were only attributed to the studies conducted in Europe, with high quality scores, among overweight and obese adolescents, with a baseline LTL lower than 1, and performed in community-based school settings. Also, according to the subgrouping and meta-regression results, the obesity definition criteria and baseline LTL were the possible sources of between-study heterogeneity. Conclusion: We observed shorter LTL among overweight and obese children and adolescents. To obtain more reliable results, further longitudinal prospective studies with large sample sizes and more consistent and accurate definitions of obesity are required.
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Affiliation(s)
| | - Indrajit Patra
- An Independent Researcher, PhD from NIT Durgapur, Durgapur, West Bengal, India
| | | | - Harun Achmad
- Department of Pediatric Dentistry, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
| | - Samira Alesaeidi
- Department of Internal Medicine and Rheumatology, Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Sogol Alesaeidi
- Department of Pediatric Medicine, Imam Hossein Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
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14
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Zhang C, Liu N. N6-methyladenosine (m6A) modification in gynecological malignancies. J Cell Physiol 2022; 237:3465-3479. [PMID: 35802474 DOI: 10.1002/jcp.30828] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 06/13/2022] [Accepted: 06/23/2022] [Indexed: 12/27/2022]
Abstract
N6-methyladenosine (m6A) modification is one of the most abundant modifications in eukaryotic mRNA, regulated by m6A methyltransferase and demethylase. m6A modified RNA is specifically recognized and bound by m6A recognition proteins, which mediate splicing, maturation, exonucleation, degradation, and translation. In gynecologic malignancies, m6A RNA modification-related molecules are expressed aberrantly, significantly altering the posttranscriptional methylation level of the target genes and their stability. The m6A modification also regulates related metabolic pathways, thereby controlling tumor development. This review analyzes the composition and mode of action of m6A modification-related proteins and their biological functions in the malignant progression of gynecologic malignancies, which provide new ideas for the early clinical diagnosis and targeted therapy of gynecologic malignancies.
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Affiliation(s)
- Chunmei Zhang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Ning Liu
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China
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15
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Briollais L, Rustand D, Allard C, Wu Y, Xu J, Rajan SG, Hivert MF, Doyon M, Bouchard L, McGowan PO, Matthews S, Lye S. DNA methylation mediates the association between breastfeeding and early-life growth trajectories. Clin Epigenetics 2021; 13:231. [PMID: 34937578 PMCID: PMC8697471 DOI: 10.1186/s13148-021-01209-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 12/04/2021] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The role of breastfeeding in modulating epigenetic factors has been suggested as a possible mechanism conferring its benefits on child development but it lacks evidence. Using extensive DNA methylation data from the ALSPAC child cohort, we characterized the genome-wide landscape of DNA methylation variations associated with the duration of exclusive breastfeeding and assessed whether these variations mediate the association between exclusive breastfeeding and BMI over different epochs of child growth. RESULTS Exclusive breastfeeding elicits more substantial DNA methylation variations during infancy than at other periods of child growth. At the genome-wide level, 13 CpG sites in girls (miR-21, SNAPC3, ATP6V0A1, DHX15/PPARGC1A, LINC00398/ALOX5AP, FAM238C, NATP/NAT2, CUX1, TRAPPC9, OSBPL1A, ZNF185, FAM84A, PDPK1) and 2 CpG sites in boys (IL16 and NREP), mediate the association between exclusive breastfeeding and longitudinal BMI. We found enrichment of CpG sites located within miRNAs and key pathways (AMPK signaling pathway, insulin signaling pathway, endocytosis). Overall DNA methylation variation corresponding to 3 to 5 months of exclusive breastfeeding was associated with slower BMI growth the first 6 years of life compared to no breastfeeding and in a dose-response manner with exclusive breastfeeding duration. CONCLUSIONS Our study confirmed the early postnatal period as a critical developmental period associated with substantial DNA methylation variations, which in turn could mitigate the development of overweight and obesity from infancy to early childhood. Since an accelerated growth during these developmental periods has been linked to the development of sustained obesity later in life, exclusive breastfeeding could have a major role in preventing the risks of overweight/obesity and children and adults through DNA methylation mechanisms occurring early in life.
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Affiliation(s)
- Laurent Briollais
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, 60, Murray street - Room 5-237, Toronto, ON, M5T 3L9, Canada.
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada.
| | - Denis Rustand
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, 60, Murray street - Room 5-237, Toronto, ON, M5T 3L9, Canada
- Biostatistics Team, Bordeaux Population Health Center, ISPED, Centre INSERM U1219, Bordeaux, France
| | - Catherine Allard
- Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke (CHUS), Sherbrooke, QC, Canada
| | - Yanyan Wu
- Department of Public Health Sciences, University of Hawai'i at Manoa, Honolulu, HI, USA
| | - Jingxiong Xu
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, 60, Murray street - Room 5-237, Toronto, ON, M5T 3L9, Canada
| | | | - Marie-France Hivert
- Division of Chronic Disease Research Across the Life Course, Department of Population Medicine, Harvard Pilgrim Health Care Institute, Harvard Medical School, Boston, MA, 02215, USA
- Department of Medicine, Université de Sherbrooke, Sherbrooke, QC, J1H 5N4, Canada
- Diabetes Unit, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Myriam Doyon
- Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke (CHUS), Sherbrooke, QC, Canada
| | - Luigi Bouchard
- Department of Medical Biology, CIUSSS Saguenay-Lac-Saint-Jean, Hôpital Universitaire de Chicoutimi, Saguenay, QC, G7H 5H6, Canada
- Department of Biochemistry and Functional Genomics, Université de Sherbrooke, Sherbrooke, QC, J1K 2R1, Canada
| | - Patrick O McGowan
- Department of Biological Sciences, University of Toronto - Scarborough, Toronto, ON, Canada
| | - Steven Matthews
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, 60, Murray street - Room 5-237, Toronto, ON, M5T 3L9, Canada
- Department of Physiology, University of Toronto, Toronto, ON, Canada
| | - Steven Lye
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, 60, Murray street - Room 5-237, Toronto, ON, M5T 3L9, Canada
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Ageing and Obesity Shared Patterns: From Molecular Pathogenesis to Epigenetics. Diseases 2021; 9:diseases9040087. [PMID: 34940025 PMCID: PMC8700721 DOI: 10.3390/diseases9040087] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/23/2021] [Accepted: 11/28/2021] [Indexed: 12/22/2022] Open
Abstract
In modern societies, ageing and obesity represent medical challenges for healthcare professionals and caregivers. Obesity and ageing share common features including the related cellular and molecular pathways as well as the impacts they have as risk factors for a variety of diseases and health problems. Both of these health problems also share exercise and a healthy lifestyle as the best therapeutic options. Importantly, ageing and obesity also have common epigenetic changes (histone modification, DNA methylation, noncoding RNAs, and chromatin remodeling) that are also impacted by exercise. This suggests that epigenetic pathways are among the mechanisms via which exercise induces its benefits, including ageing and obesity improvements. Exploring these interrelations and based on the fact that both ageing and obesity represent risk factors for each other, would lead to optimizing the available therapeutic approaches towards improved obesity management and healthy ageing.
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Zhou Y, Hambly BD, Simmons D, McLachlan CS. RUNX1T1 rs34269950 is associated with obesity and metabolic syndrome. QJM 2021; 114:553-558. [PMID: 32589708 DOI: 10.1093/qjmed/hcaa208] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 05/04/2020] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Runt-related transcription factor 1 (RUNX1T1) isoforms are involved in adipogenesis. RUNX1T1 is mediated by the fat mass and obesity-associated (FTO). However, the extent to which RUNX1T1 single-nucleotide polymorphisms (SNPs) are associated with obesity risk or metabolic abnormalities in a community population basis is unknown. METHODS Samples were obtained from the Australian Crossroads study bio-bank. SNPs located in the coding region and 3'untranslated regions of RUNX1T1 with minor allele frequency ≥0.05 were analysed using Taqman genotyping assays. RESULTS Eight candidate SNPs were genotyped successfully in 1440 participants. Of these SNPs only rs34269950 located in the 'RRACH' motif, the most common N6-methyladenosine (m6A) methylation modification site (recognized by FTO), was significantly associated with obesity risk and metabolic abnormalities. Specifically, compared to AA genotype, rs34269950 del/del genotype was associated with a 1.47 [95% confidence interval (CI): 1.01-2.14, P = 0.042] fold higher rate of obesity risk. Additionally, the del/del genotype was associated with a 60% increased risk of metabolic syndrome (MetS) [odds ratio (OR) = 1.60, 95% CI: 1.10-2.32, P = 0.015], in comparison to the AA genotype. Finally, rs34269950 del/del increased the risk of a larger waist circumference (OR = 1.65, 95% CI: 1.15-2.36, P = 0.007), but not other components of MetS. CONCLUSION Our study demonstrates that RUNX1T1 rs34269950, located in a potential FTO recognition motif, is significantly associated with waist circumference. This provides novel evidence to suggest SNPs located in RRACH motif may be involved in RNA m6A modification and mechanistic pathways that influence abdominal obesity.
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Affiliation(s)
- Y Zhou
- Xiamen Cardiovascular Hospital, Xiamen University, 2999 Jinshan Road, Huli District, Xiamen 361016, China
- The School of Economics, Xiamen University, Xiangan South Road, Xiangan District, Xiamen 361102, China
| | - B D Hambly
- Discipline of Pathology and Bosch Institute, University of Sydney, Charles Perkins Centre, John Hopkins Drive, NSW 2006, Australia
| | - D Simmons
- Department of Rural Health, University of Melbourne, Level 2 West, Medical Building (181) Shepparton, VIC 3010, Australia
- School of Medicine, Western Sydney University, Locked Bag 1797, Campbelltown, NSW 2751, Australia
| | - C S McLachlan
- Health Vertical, Torrens University, 5/235 Pyrmont St, Pyrmont, NSW 2009, Australia
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Sánchez-González JL, Sánchez-Rodríguez JL, Martín-Vallejo J, Martel-Martel A, González-Sarmiento R. Effects of Physical Exercise on Cognition and Telomere Length in Healthy Older Women. Brain Sci 2021; 11:1417. [PMID: 34827416 PMCID: PMC8615568 DOI: 10.3390/brainsci11111417] [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: 10/04/2021] [Revised: 10/18/2021] [Accepted: 10/26/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Physical exercise is an effective measure for preventing the onset of cognitive decline and has a direct influence on the aging process. The purpose of this study was to assess the effect of a 6-month physical exercise program on cognition and telomere length in adults over 65 years of age. METHOD Seventy-four healthy women were separated into two groups: 41 were included in the intervention group (IG) (72.70 ± 4.127 years and 8.18 ± 1.551 years of education) and 33 in the control group (CG) (71.21 ± 4.127 years and 8.42 ± 2.562). The participants included within the IG carried out three sessions of physical exercise per week for six months. Cognitive function was assessed using the Mini-Mental State Examination (MMSE), the Stroop test and the Trail Making Test (TMT). Saliva samples were taken and analyzed and relative telomere length was calculated. Those conducting the analysis were blind to the group to which the participants had been assigned. RESULTS An improvement was observed in global cognitive function, in both attentional and executive functions, in the group of adults doing physical exercise as compared to the control group. Six months after the physical exercise program had finished, relative telomere length was found to have increased in the participants in the intervention group. CONCLUSION Physical exercise programs can lead to an improvement in both cognitive functions and telomere length.
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Affiliation(s)
- Juan Luis Sánchez-González
- Department of Nursery and Physiotherapy, Faculty of Nursery and Physiotherapy, University of Salamanca, 37007 Salamanca, Spain
| | - Juan Luis Sánchez-Rodríguez
- Department of Basic Psychology, Psychobiology and Methodology, Faculty of Psychology, University of Salamanca, 37005 Salamanca, Spain;
| | - Javier Martín-Vallejo
- Department of Statistics, Faculty of Medicine, University of Salamanca, 37007 Salamanca, Spain;
| | - Abel Martel-Martel
- Department of Medicine, Faculty of Medicine, University of Salamanca, 37007 Salamanca, Spain; (A.M.-M.); (R.G.-S.)
| | - Rogelio González-Sarmiento
- Department of Medicine, Faculty of Medicine, University of Salamanca, 37007 Salamanca, Spain; (A.M.-M.); (R.G.-S.)
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Li M, Deng L, Xu G. METTL14 promotes glomerular endothelial cell injury and diabetic nephropathy via m6A modification of α-klotho. Mol Med 2021; 27:106. [PMID: 34503454 PMCID: PMC8427885 DOI: 10.1186/s10020-021-00365-5] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 08/26/2021] [Indexed: 12/11/2022] Open
Abstract
Background N6-Methyladenosine (m6A) modification has been implicated in many bioprocesses. However, its functions in diabetic nephropathy (DN) have not been determined. Here, we investigated the role of METTL14, a key component of the m6A methyltransferase complex, in DN. Methods The expression of METTL14 was detected in DN patients and human renal glomerular endothelial cells (HRGECs). In vitro and in vivo experiments were performed to explore the functions of METTL14 on high glocse-induced HRGECs and renal injury of DN mice. We also investigated whether METTL14 works by regulating α-klotho expression through m6A modification. Results METTL14 were highly expressed in kidneys of DN patients and high glocse-induced HRGECs both at the mRNA and protein level. Overexpression of METTL14 increased ROS, TNF-α and IL-6 levels and apoptosis in HRGECs. Conversely, METTL14 silence decreased the levels of ROS, TNF-α and IL-6 and cell apoptosis. We confirmed that METTL14 down-regulated α-klotho expression in an m6A-dependent manner. In addition, we also found that METTL14 aggravated renal injury and inflammation of db/db mice, which could partially rescued by α-klotho. Conclusion Our data revealed that METTL14 plays a vital role in high glucose-induced glomerular endothelial cells and diabetic nephropathy through m6A modification of α-klotho.
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Affiliation(s)
- Manna Li
- Department of Nephrology, The Second Affiliated Hospital to Nanchang University, No. 1, Minde Road, Donghu District, Nanchang, 330006, China
| | - Le Deng
- Department of Nephrology, The Second Affiliated Hospital to Nanchang University, No. 1, Minde Road, Donghu District, Nanchang, 330006, China
| | - Gaosi Xu
- Department of Nephrology, The Second Affiliated Hospital to Nanchang University, No. 1, Minde Road, Donghu District, Nanchang, 330006, China.
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The m6A mRNA demethylase FTO in granulosa cells retards FOS-dependent ovarian aging. Cell Death Dis 2021; 12:744. [PMID: 34315853 PMCID: PMC8316443 DOI: 10.1038/s41419-021-04016-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 06/19/2021] [Accepted: 06/30/2021] [Indexed: 02/07/2023]
Abstract
Multifunctional N6-methyladenosine (m6A) has been revealed to be an important epigenetic component in various physiological and pathological processes, but its role in female ovarian aging remains unclear. Thus, we demonstrated m6A demethylase FTO downregulation and the ensuing increased m6A in granulosa cells (GCs) of human aged ovaries, while FTO-knockdown GCs showed faster aging-related phenotypes mediated. Using the m6A-RNA-sequence technique (m6A-seq), increased m6A was found in the FOS-mRNA-3'UTR, which is suggested to be an erasing target of FTO that slows the degradation of FOS-mRNA to upregulate FOS expression in GCs, eventually resulting in GC-mediated ovarian aging. FTO acts as a senescence-retarding protein via m6A, and FOS knockdown significantly alleviates the aging of FTO-knockdown GCs. Altogether, the abovementioned results indicate that FTO in GCs retards FOS-dependent ovarian aging, which is a potential diagnostic and therapeutic target against ovarian aging and age-related reproductive diseases.
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Li Y, Wu H, Wang Q, Xu S. ZNF217: the cerberus who fails to guard the gateway to lethal malignancy. Am J Cancer Res 2021; 11:3378-3405. [PMID: 34354851 PMCID: PMC8332857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 05/14/2021] [Indexed: 06/13/2023] Open
Abstract
The aberrant expression of the zinc finger protein 217 (ZNF217) promotes multiple malignant phenotypes, such as replicative immortality, maintenance of proliferation, malignant heterogeneity, metastasis, and cell death resistance, via diverse mechanisms, including transcriptional activation, mRNA N6-methyladenosine (m6A) regulation, and protein interactions. The induction of these cellular processes by ZNF217 leads to therapeutic resistance and patients' poor outcomes. However, few ZNF217 related clinical applications or trials, have been reported. Moreover, looming observations about ZNF217 roles in m6A regulation and cancer immune response triggered significant attention while lacking critical evidence. Thus, in this review, we revisit the literature about ZNF217 and emphasize its importance as a prognostic biomarker for early prevention and as a therapeutic target.
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Affiliation(s)
- Yingpu Li
- Department of Breast Surgery, Harbin Medical University Cancer HospitalHarbin, China
| | - Hao Wu
- Sino-Russian Medical Research Center, Harbin Medical University Cancer HospitalHarbin, China
- Heilongjiang Academy of Medical SciencesHarbin, China
| | - Qin Wang
- Department of Breast Surgery, Harbin Medical University Cancer HospitalHarbin, China
- Sino-Russian Medical Research Center, Harbin Medical University Cancer HospitalHarbin, China
- Heilongjiang Academy of Medical SciencesHarbin, China
| | - Shouping Xu
- Department of Breast Surgery, Harbin Medical University Cancer HospitalHarbin, China
- Sino-Russian Medical Research Center, Harbin Medical University Cancer HospitalHarbin, China
- Heilongjiang Academy of Medical SciencesHarbin, China
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22
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Dang Q, Shao B, Zhou Q, Chen C, Guo Y, Wang G, Liu J, Kan Q, Yuan W, Sun Z. RNA N 6-Methyladenosine in Cancer Metastasis: Roles, Mechanisms, and Applications. Front Oncol 2021; 11:681781. [PMID: 34211849 PMCID: PMC8239292 DOI: 10.3389/fonc.2021.681781] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 05/24/2021] [Indexed: 12/29/2022] Open
Abstract
Cancer metastasis is a symptom of adverse prognosis, a prime origin of therapy failure, and a lethal challenge for cancer patients. N6-methyladenosine (m6A), the most prevailing modification in messenger RNAs (mRNAs) and non-coding RNAs (ncRNAs) of higher eukaryotes, has attracted increasing attention. Growing studies have verified the pivotal roles of m6A methylation in controlling mRNAs and ncRNAs in diverse physiological processes. Remarkably, recent findings have showed that aberrant methylation of m6A-related RNAs could influence cancer metastasis. In this review, we illuminate how m6A modifiers act on mRNAs and ncRNAs and modulate metastasis in several cancers, and put forward the clinical application prospects of m6A methylation.
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Affiliation(s)
- Qin Dang
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Bo Shao
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Quanbo Zhou
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Chen Chen
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China.,School of Life Sciences, Zhengzhou University, Zhengzhou, China
| | - Yaxin Guo
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China.,Department of Basic Medical, Academy of Medical Sciences of Zhengzhou University, Zhengzhou, China.,Henan Academy of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Guixian Wang
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jinbo Liu
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Quancheng Kan
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Weitang Yuan
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhenqiang Sun
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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23
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Luo J, Xu T, Sun K. N6-Methyladenosine RNA Modification in Inflammation: Roles, Mechanisms, and Applications. Front Cell Dev Biol 2021; 9:670711. [PMID: 34150765 PMCID: PMC8213350 DOI: 10.3389/fcell.2021.670711] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 05/10/2021] [Indexed: 12/21/2022] Open
Abstract
N6-methyladenosine (m6A) is the most prevalent internal mRNA modification. m6A can be installed by the methyltransferase complex and removed by demethylases, which are involved in regulating post-transcriptional expression of target genes. RNA methylation is linked to various inflammatory states, including autoimmunity, infection, metabolic disease, cancer, neurodegenerative diseases, heart diseases, and bone diseases. However, systematic knowledge of the relationship between m6A modification and inflammation in human diseases remains unclear. In this review, we will discuss the association between m6A modification and inflammatory response in diseases, especially the role, mechanisms, and potential clinical application of m6A as a biomarker and therapeutic target for inflammatory diseases.
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Affiliation(s)
- Jiahui Luo
- The Center for Biomedical Research, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tao Xu
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kai Sun
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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24
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Baskind M, Hawkins J, Heyman MB, Wojcicki JM. Obesity at Age 6 Months Is Associated with Shorter Preschool Leukocyte Telomere Length Independent of Parental Telomere Length. J Pediatr 2021; 233:141-149. [PMID: 33242471 PMCID: PMC8141537 DOI: 10.1016/j.jpeds.2020.11.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 11/15/2020] [Accepted: 11/17/2020] [Indexed: 12/21/2022]
Abstract
OBJECTIVE To assess whether early modifiable dietary factors and obesity measures are associated with leukocyte telomere length at 3-5 years of age after controlling for the heritability of leukocyte telomere length in a prospective cohort of low-income Latina mothers and their children in San Francisco. STUDY DESIGN We analyzed data from the Latinx, Eating and Diabetes cohort, a prospective study of 97 woman-infant dyads. We used linear regression models to evaluate associations between early dietary factors and obesity measures and child leukocyte telomere length at 3-5 years of age. Multivariable models included child age at the time of telomere collection, breastfeeding at 6 months (yes/no), obesity at 6 months, maternal education, child sex, and maternal and paternal leukocyte telomere length. RESULTS Data for 73 of the 97 children at 3-5 years of age were analyzed. Any breastfeeding at 6 months was positively associated (β = 0.14; P = .02) and obesity at 6 months was negatively associated (β = -0.21; P < .001) with leukocyte telomere length in bivariate analyses. In multivariable models including parental leukocyte telomere length, obesity at 6 months was associated with a shorter leukocyte telomere length at 3-5 years of age (β = -0.15; P = .02). Analyses of dietary factors showed high flavored milk consumption at 3 years of age was associated with shorter leukocyte telomere length after adjustment for possible confounders. CONCLUSIONS In a low-income Latinx population, obesity at 6 months of age is negatively associated with cellular health at 3-5 years of age after controlling for genetic factors (parental leukocyte telomere length) associated with leukocyte telomere length. Early life obesity may be more deleterious for cellular health than obesity later in childhood.
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Affiliation(s)
- Melanie Baskind
- Department of Pediatrics, University of California San Francisco, San Francisco, California
| | - Jessica Hawkins
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, University of California San Francisco, San Francisco, California
| | - Melvin B. Heyman
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, University of California San Francisco, San Francisco, California
| | - Janet M Wojcicki
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, University of California San Francisco, San Francisco, CA; Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA.
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25
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Vrablik M, Dlouha D, Todorovova V, Stefler D, Hubacek JA. Genetics of Cardiovascular Disease: How Far Are We from Personalized CVD Risk Prediction and Management? Int J Mol Sci 2021; 22:4182. [PMID: 33920733 PMCID: PMC8074003 DOI: 10.3390/ijms22084182] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 04/09/2021] [Accepted: 04/12/2021] [Indexed: 12/13/2022] Open
Abstract
Despite the rapid progress in diagnosis and treatment of cardiovascular disease (CVD), this disease remains a major cause of mortality and morbidity. Recent progress over the last two decades in the field of molecular genetics, especially with new tools such as genome-wide association studies, has helped to identify new genes and their variants, which can be used for calculations of risk, prediction of treatment efficacy, or detection of subjects prone to drug side effects. Although the use of genetic risk scores further improves CVD prediction, the significance is not unambiguous, and some subjects at risk remain undetected. Further research directions should focus on the "second level" of genetic information, namely, regulatory molecules (miRNAs) and epigenetic changes, predominantly DNA methylation and gene-environment interactions.
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Affiliation(s)
- Michal Vrablik
- 3rd Department of Internal Medicine, General University Hospital and 1st Faculty of Medicine, Charles University, 11636 Prague, Czech Republic; (V.T.); (J.A.H.)
| | - Dana Dlouha
- Experimental Medicine Centre, Institute for Clinical and Experimental Medicine, 14021 Prague, Czech Republic;
| | - Veronika Todorovova
- 3rd Department of Internal Medicine, General University Hospital and 1st Faculty of Medicine, Charles University, 11636 Prague, Czech Republic; (V.T.); (J.A.H.)
| | - Denes Stefler
- Department of Epidemiology and Public Health, Institute of Epidemiology and Health Care, University College London, London WC1E 7HB, UK;
| | - Jaroslav A. Hubacek
- 3rd Department of Internal Medicine, General University Hospital and 1st Faculty of Medicine, Charles University, 11636 Prague, Czech Republic; (V.T.); (J.A.H.)
- Experimental Medicine Centre, Institute for Clinical and Experimental Medicine, 14021 Prague, Czech Republic;
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26
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The correlation of salivary telomere length and single nucleotide polymorphisms of the ADIPOQ, SIRT1 and FOXO3A genes with lifestyle-related diseases in a Japanese population. PLoS One 2021; 16:e0243745. [PMID: 33507936 PMCID: PMC7842940 DOI: 10.1371/journal.pone.0243745] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 11/26/2020] [Indexed: 02/07/2023] Open
Abstract
Background It has been reported that genetic factors are associated with risk factors and onset of lifestyle-related diseases, but this finding is still the subject of much debate. Objective The aim of the present study was to investigate the correlation of genetic factors, including salivary telomere length and three single nucleotide polymorphisms (SNPs) that may influence lifestyle-related diseases, with lifestyle-related diseases themselves. Methods In one year at a single facility, relative telomere length and SNPs were determined by using monochrome multiplex quantitative polymerase chain reaction and TaqMan SNP Genotyping Assays, respectively, and were compared with lifestyle-related diseases in 120 Japanese individuals near our university. Results In men and all participants, age was inversely correlated with relative telomere length with respective p values of 0.049 and 0.034. In men, the frequency of hypertension was significantly higher in the short relative telomere length group than in the long group with unadjusted p value of 0.039, and the difference in the frequency of hypertension between the two groups was of borderline statistical significance after adjustment for age (p = 0.057). Furthermore, in men and all participants, the sum of the number of affected lifestyle-related diseases, including hypertension, was significantly higher in the short relative telomere length group than in the long group, with p values of 0.004 and 0.029, respectively. For ADIPOQ rs1501299, men’s ankle brachial index was higher in the T/T genotype than in the G/G and G/T genotypes, with p values of 0.001 and 0.000, respectively. For SIRT1 rs7895833, men’s body mass index and waist circumference and all participants’ brachial-ankle pulse wave velocity were higher in the A/G genotype than in the G/G genotype, with respective p values of 0.048, 0.032 and 0.035. For FOXO3A rs2802292, women’s body temperature and all participants’ saturation of peripheral oxygen were lower in the G/T genotype than in the T/T genotype, with respective p values of 0.039 and 0.032. However, relative telomere length was not associated with physiological or anthropometric measurements except for height in men (p = 0.016). ADIPOQ rs1501299 in men, but not the other two SNPs, was significantly associated with the sum of the number of affected lifestyle-related diseases (p = 0.013), by genotype. For each SNPs, there was no significant difference in the frequency of hypertension or relative telomere length by genotype. Conclusion Relative telomere length and the three types of SNPs determined using saliva have been shown to be differentially associated with onset of and measured risk factors for lifestyle-related diseases consisting mainly of cardiovascular diseases and cancer.
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27
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Bayoumi M, Munir M. Structural Insights Into m6A-Erasers: A Step Toward Understanding Molecule Specificity and Potential Antiviral Targeting. Front Cell Dev Biol 2021; 8:587108. [PMID: 33511112 PMCID: PMC7835257 DOI: 10.3389/fcell.2020.587108] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 11/26/2020] [Indexed: 12/13/2022] Open
Abstract
The cellular RNA can acquire a variety of chemical modifications during the cell cycle, and compelling pieces of evidence highlight the importance of these modifications in determining the metabolism of RNA and, subsequently, cell physiology. Among myriads of modifications, methylation at the N6-position of adenosine (m6A) is the most important and abundant internal modification in the messenger RNA. The m6A marks are installed by methyltransferase complex proteins (writers) in the majority of eukaryotes and dynamically reversed by demethylases such as FTO and ALKBH5 (erasers). The incorporated m6A marks on the RNA transcripts are recognized by m6A-binding proteins collectively called readers. Recent epigenetic studies have unequivocally highlighted the association of m6A demethylases with a range of biomedical aspects, including human diseases, cancers, and metabolic disorders. Moreover, the mechanisms of demethylation by m6A erasers represent a new frontier in the future basic research on RNA biology. In this review, we focused on recent advances describing various physiological, pathological, and viral regulatory roles of m6A erasers. Additionally, we aim to analyze structural insights into well-known m6A-demethylases in assessing their substrate binding-specificity, efficiency, and selectivity. Knowledge on cellular and viral RNA metabolism will shed light on m6A-specific recognition by demethylases and will provide foundations for the future development of efficacious therapeutic agents to various cancerous conditions and open new avenues for the development of antivirals.
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Affiliation(s)
- Mahmoud Bayoumi
- Division of Biomedical and Life Sciences, Lancaster University, Lancaster, United Kingdom.,Virology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Muhammad Munir
- Division of Biomedical and Life Sciences, Lancaster University, Lancaster, United Kingdom
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28
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Zhang Y, Xu Z, Yang Y, Cao S, Lyu S, Duan W. Association Between Weight Change and Leukocyte Telomere Length in U.S. Adults. Front Endocrinol (Lausanne) 2021; 12:650988. [PMID: 34393992 PMCID: PMC8355991 DOI: 10.3389/fendo.2021.650988] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 07/02/2021] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE To investigate the association of dynamic weight change in adulthood with leukocyte telomere length among U.S. adults. METHODS This study included 3,886 subjects aged 36-75 years from the National Health and Nutrition Examination Survey (NHANES) 1999-2002 cycle. Survey-weighted multivariable linear regression with adjustments for potential confounders was utilized. RESULTS 3,386 individuals were finally included. People with stable obesity had a 0.130 kbp (95% CI: 0.061-0.198, P=1.97E-04) shorter leukocyte telomere length than those with stable normal weight (reference group) during the 10-year period, corresponding to approximately 8.7 years of aging. Weight gain from non-obesity to obesity shortened the leukocyte telomere length by 0.094 kbp (95% CI: 0.012-0.177, P=0.026), while normal weight to overweight or remaining overweight shortened the leukocyte telomere length by 0.074 kbp (95% CI: 0.014-0.134, P=0.016). The leukocyte telomere length has 0.003 kbp attrition on average for every 1 kg increase in weight from a mean age of 41 years to 51 years. Further stratified analysis showed that the associations generally varied across sex and race/ethnicity. CONCLUSIONS This study found that weight changes during a 10-year period was associated with leukocyte telomere length and supports the theory that weight gain promotes aging across adulthood.
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Affiliation(s)
- Yiling Zhang
- Department of Bioinformatics, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, Nanjing, China
| | - Ziye Xu
- Department of Bioinformatics, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, Nanjing, China
| | - Yiling Yang
- Department of Bioinformatics, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, Nanjing, China
| | - Shanshan Cao
- Department of Bioinformatics, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, Nanjing, China
| | - Sali Lyu
- Department of Bioinformatics, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, Nanjing, China
| | - Weiwei Duan
- Department of Bioinformatics, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, Nanjing, China
- Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
- *Correspondence: Weiwei Duan,
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FTO accelerates ovarian cancer cell growth by promoting proliferation, inhibiting apoptosis, and activating autophagy. Pathol Res Pract 2020; 216:153042. [PMID: 32825930 DOI: 10.1016/j.prp.2020.153042] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 05/15/2020] [Accepted: 05/31/2020] [Indexed: 12/21/2022]
Abstract
OBJECTIVE Fat mass and obesity-associated protein (FTO) is identified as a critical demethylase involved in various physiological processes. Despite efforts have been made to study the biological functions of FTO in certain cancers, the role of FTO in ovarian cancer is largely unknown. In this study, we sought to investigate the function of FTO on proliferation, apoptosis and autophagy of ovarian cancer cells. METHODS Quantitative real-time PCR was performed to detect FTO expression in ovarian tumor tissues and ovarian cancer cell lines OVCAR-3, SKOV-3, COC1, HO-8910 and A2780. SKOV-3 cells were constructed with FTO overexpression and A2780 cells were constructed with FTO knockdown. CCK-8 assay was used to examine cell viability and flow cytometry was used to detect cell apoptosis. Activity assay kits were applied to detect caspase-3 and caspase-9 levels. Western blot was performed to measure the expressions of FTO, PCNA, Bax, Bcl-2, LC3, ATG5, P62, p-AKT and AKT. Stable FTO-overexpression SKOV-3 cells or FTO-depletion A2780 cells were injected subcutaneously into male Balb/c-nu mice. Xenografted tumors were assayed by H&E staining. Immunohistochemistry was subjected to measure FTO and Ki67 expressions. RESULTS FTO was up-regulated in ovarian tumor tissues compared with non-cancerous ovarian tissues. FTO overexpression markedly increased viability and autophagy function, but decreased apoptosis of ovarian cancer cells. In addition, FTO overexpression promoted AKT phosphorylation. In contrast, FTO silence showed the opposite effect. CONCLUSION FTO accelerated ovarian cancer cell growth by promoting proliferation, inhibiting apoptosis, and activating autophagy.
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Tobore TO. Towards a comprehensive theory of obesity and a healthy diet: The causal role of oxidative stress in food addiction and obesity. Behav Brain Res 2020; 384:112560. [DOI: 10.1016/j.bbr.2020.112560] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 02/14/2020] [Accepted: 02/14/2020] [Indexed: 02/06/2023]
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RNA N 6-Methyladenosine Modifications and the Immune Response. J Immunol Res 2020; 2020:6327614. [PMID: 32411802 PMCID: PMC7204177 DOI: 10.1155/2020/6327614] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 11/13/2019] [Accepted: 12/24/2019] [Indexed: 01/09/2023] Open
Abstract
N6-methyladenosine (m6A) is the most important modification of messenger RNAs (mRNAs) and long noncoding RNAs (lncRNAs) in higher eukaryotes. Modulation of m6A modifications relies on methyltransferases and demethylases. The discovery of binding proteins confirms that the m6A modification has a wide range of biological effects and significance at the molecular, cellular, and physiological levels. In recent years, techniques for investigating m6A modifications of RNA have developed rapidly. This article reviews the biological significance of RNA m6A modifications in the innate immune response, adaptive immune response, and viral infection.
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32
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Milk Fat Intake and Telomere Length in U.S. Women and Men: The Role of the Milk Fat Fraction. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:1574021. [PMID: 31772698 PMCID: PMC6855010 DOI: 10.1155/2019/1574021] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 10/04/2019] [Indexed: 12/24/2022]
Abstract
The associations between milk intake frequency and milk fat consumption and telomere length, an index of biological aging, were studied using an NHANES sample of 5,834 U.S. adults and a cross-sectional design. The milk consumption variables were assessed with the NHANES Diet Behavior and Nutrition questionnaire. The quantitative polymerase chain reaction method was used to measure leukocyte telomere length. Results showed that milk consumption frequency was not related to telomere length; however, there was a strong association between milk fat intake and telomere length. With the sample delimited to milk drinkers only, milk fat intake was linearly and inversely related to telomere length, after adjusting for the covariates (F = 8.6, P = 0.0066). For each 1 percentage point increase in milk fat consumed (e.g., 1% to 2%), adults had more than 4 years of additional biological aging. With milk fat intake divided into 5 categories (i.e., milk abstainers, nonfat, 1%, 2%, and full-fat milk), mean telomere lengths differed across the categories (F = 4.1, P = 0.0093). The mean telomere difference between the extremes of milk fat intake (nonfat vs. full-fat) was 145 base pairs, representing years of additional biological aging for full-fat milk consumers. Effect modification testing indicated that the milk fat and cellular aging association may be partly due to saturated fat intake differences across the milk fat groups. When the sample was delimited to adults reporting only high total saturated fat intake (tertile 3), the milk fat and telomere relationship was strong. However, when the sample was restricted to adults reporting only low saturated fat consumption (tertile 1), there was no relationship between milk fat intake and telomere length. Overall, the findings highlight an association of increased biological aging in U.S. adults who consumed high-fat milk. The results support the latest Dietary Guidelines for Americans (2015–2020), which recommend consumption of low-fat milk, but not high-fat milk, as part of a healthy diet.
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33
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Obesity, weight loss, and influence on telomere length: New insights for personalized nutrition. Nutrition 2019; 66:115-121. [DOI: 10.1016/j.nut.2019.05.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 04/22/2019] [Accepted: 05/11/2019] [Indexed: 01/29/2023]
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34
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Liu X, Liu L, Dong Z, Li J, Yu Y, Chen X, Ren F, Cui G, Sun R. Expression patterns and prognostic value of m 6A-related genes in colorectal cancer. Am J Transl Res 2019; 11:3972-3991. [PMID: 31396313 PMCID: PMC6684930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 05/29/2019] [Indexed: 06/10/2023]
Abstract
Colorectal cancer (CRC), including colon adenocarcinoma (COAD) and rectal adenocarcinoma (READ), is one of the most prevalent malignancies worldwide. N6-methyladenosine (m6A) is a ubiquitous RNA modification that plays a vital role in human tumors, but its expression patterns and prognostic value in CRC have not yet been determined. Here, we first used the Cancer Genome Atlas (TCGA), the Gene Expression Omnibus (GEO) and the Human Protein Atlas (HPA) databases and a tissue microarray (TMA) cohort to verify the expression of m6A-related genes at the mRNA and protein levels. We found that most m6A-related genes were substantially upregulated in tumor tissues compared with normal tissues, but METTL14, YTHDF3 and ALKBH5 were downregulated in CRC. There was no obvious difference in FTO. In addition, WTAP, METTL16, HNRNPC and YTHDC1 were abundantly expressed in COAD but not in READ. Moreover, immunofluorescence (IF) analyses of SW480 and HCT116 cells showed that most of the m6A-related proteins were expressed in the nucleus and cytoplasm. Survival analysis demonstrated that the expression levels of METTL3, METTL14, METTL16, FTO and ALKBH5 were associated with the clinical outcomes of CRC patients. Taken together, all the results revealed that m6A-related genes were dysregulated in CRC and might play a significant role in the progression of CRC.
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Affiliation(s)
- Xin Liu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Liwen Liu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Zihui Dong
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Jianhao Li
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Yan Yu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Xiaolong Chen
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Fang Ren
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Guangying Cui
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Ranran Sun
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- National Engineering Laboratory for Internet Medical System and Application, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
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Tan P, Mitra S, Amini F. Lifestyle Interventions for Weight Control Modified by Genetic Variation: A Review of the Evidence. Public Health Genomics 2019; 21:169-185. [DOI: 10.1159/000499854] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 03/23/2019] [Indexed: 11/19/2022] Open
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Novel positioning from obesity to cancer: FTO, an m 6A RNA demethylase, regulates tumour progression. J Cancer Res Clin Oncol 2018; 145:19-29. [PMID: 30465076 DOI: 10.1007/s00432-018-2796-0] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Accepted: 11/13/2018] [Indexed: 12/28/2022]
Abstract
PURPOSE The fat mass- and obesity-associated (FTO) gene on chromosome 16q12.2 shows an intimate association with obesity and body mass index. Recently, research into the FTO gene and its expression product has attracted widespread interest due to the identification of FTO as an N6-methyladenosine (m6A) demethylase. FTO primarily regulates the m6A levels of downstream targets via their 3' untranslated regions. FTO not only plays a critical role in obesity-related diseases but also is involved in the occurrence, development and prognosis of many types of cancer, such as acute myeloid leukaemia, glioblastoma and breast cancer. Currently, studies indicate that FTO is a crucial component of m6A modification, it regulates cancer stem cell function, and promotes the growth, self-renewal and metastasis of cancer cells. In this review, we summarized and analysed the data regarding the structural features and biological functions of FTO as well as its association with different cancers and possible molecular mechanisms. METHODS We systematically reviewed the related literatures regarding FTO and its demethylation activity in many pathologic and physiological processes, especially in cancer-related diseases based on PubMed databases in this article. RESULTS Mounting evidence indicated that FTO plays a critical role in occurrence, progression and treatment of various cancers, even acting as a cancer oncogene in acute myeloid leukaemia, research on which is no longer restricted to metabolic diseases such as obesity and diabetes. CONCLUSION Considering FTO's critical role in many diseases, FTO may become a new promising target for the diagnosis and treatment of various diseases in the near future, especially for specific types of cancers, such as acute myeloid leukaemia, glioblastoma and breast cancer.
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Mi S, Du Z, Xu Y, Sun W. The crossing and integration between microfluidic technology and 3D printing for organ-on-chips. J Mater Chem B 2018; 6:6191-6206. [PMID: 32254609 DOI: 10.1039/c8tb01661e] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Organ-on-chips were designed to simulate the real tissue or organ microenvironment by precise control of the cells, the extracellular matrix and other micro-environmental factors to clarify physiological or pathological mechanisms. The organ chip is mainly based on the poly(dimethylsiloxane) (PDMS) microfluidic devices, whereas the conventional soft lithography requires a cumbersome manufacturing process, and the complex on-chip tissue or organ chip also depends on the complicated loading process of the cells and biomaterials. 3D printing can efficiently design and automatically print micrometre-scale devices, while bio-printing can also precisely manipulate cells and biomaterials to create complex organ or tissue structures. In recent years, the popularization of 3D printing has provided more possibilities for its application to 3D printed organ-on-chips. The combination of 3D printing and microfluidic technology in organ-on-chips provides a more efficient choice for building complex flow channels or chambers, as well as the ability to create biological structures with a 3D cell distribution, heterogeneity and tissue-specific function. The fabrication of complex, heterogeneous 3D printable biomaterials based on microfluidics also provides new assistance for building complex organ-on-chips. Here, we discuss the recent advances and potential applications of 3D printing in combination with microfluidics to organ-on-chips and provide outlooks on the integration of the two technologies in building efficient, automated, modularly integrated, and customizable organ-on-chips.
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Affiliation(s)
- Shengli Mi
- Biomanufacturing Engineering Laboratory, Advanced Manufacturing Division, Graduate School at Shenzhen, Tsinghua University, Shenzhen, P. R. China.
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Mitra SR, Tan PY, Amini F. Effect ofFTOrs9930506 on obesity and interaction of the gene variants with dietary protein and vitamin E on C-reactive protein levels in multi-ethnic Malaysian adults. J Hum Nutr Diet 2018; 31:758-772. [DOI: 10.1111/jhn.12593] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- S. R. Mitra
- School of Biosciences; Faculty of Science; University of Nottingham Malaysia Campus; Semenyih Selangor Darul Ehsan Malaysia
| | - P. Y. Tan
- School of Biosciences; Faculty of Science; University of Nottingham Malaysia Campus; Semenyih Selangor Darul Ehsan Malaysia
| | - F. Amini
- School of Healthy Aging, Medical Aesthetics & Regenerative Medicine; UCSI University; Kuala Lumpur Wilayah Persekutuan Malaysia
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Pańczyszyn A, Boniewska-Bernacka E. Telomeropathies: rare disease syndromes. MEDICAL SCIENCE PULSE 2018. [DOI: 10.5604/01.3001.0012.1165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Telomeres are located at the end of the chromosomes. They protect chromosomes from fusion and degradation. Every cell division causes a shortening of the telomeres. A special enzymatic complex called telomerase is responsible for maintaining telomere length in intensively dividing cells, such as epithelial cells and bone marrow cells. The enzymatic complex includes the TERT subunit, which has reverse transcriptase activity, and the TERC subunit, which acts as a template. Other important components of telomerase are the proteins that are responsible for structural stability. Telomerase remains active only in the dividing cells of the body. The rate of telomere shortening depends on many factors including age, sex, and comorbidities. Faster shortening of telomeres is caused by gene defects, which have an impact on telomerase action. Collectively, these are called telomeropathies. Common causes of telomeropathies are mutations in the TERT and TERC telomerase genes. Types of telemeropathies include dyskeratosis congenita, idiopathic pulmonary fibrosis, and aplastic anaemia, among others. Clinical manifestations and prognoses depend on the type and quantity of mutated genes. Diagnosis of telomeropathies is often problematic because they present with the same symptoms as other diseases. So far, no effective therapeutic methods have been developed for telomeropathies. A therapeutic method for patients with bone marrow failure may be the transplantation of hematopoietic stem cells. For patients with idiopathic pulmonary fibrosis, treatments include immunosuppressive therapy, lung transplantation, or palliative care. In the future, gene therapy may be an effective treatment strategy for telomeropathies. Lifestyle changes may also have a positive impact on the person. Physical activity combined with a healthy diet rich in antioxidants and unsaturated fatty acids can decrease the oxidative stress levels in cells and lead to a slower shortening of the telomeres.
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Affiliation(s)
- Anna Pańczyszyn
- Independent Department of Biotechnology and Molecular Biology, Faculty of Natural Sciences and Technology, University of Opole, Poland
| | - Ewa Boniewska-Bernacka
- Independent Department of Biotechnology and Molecular Biology, Faculty of Natural Sciences and Technology, University of Opole, Poland
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Martínez-Montes ÁM, Fernández A, Muñoz M, Noguera JL, Folch JM, Fernández AI. Using genome wide association studies to identify common QTL regions in three different genetic backgrounds based on Iberian pig breed. PLoS One 2018. [PMID: 29522525 PMCID: PMC5844516 DOI: 10.1371/journal.pone.0190184] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
One of the major limitation for the application of QTL results in pig breeding and QTN identification has been the limited number of QTL effects validated in different animal material. The aim of the current work was to validate QTL regions through joint and specific genome wide association and haplotype analyses for growth, fatness and premier cut weights in three different genetic backgrounds, backcrosses based on Iberian pigs, which has a major role in the analysis due to its high productive relevance. The results revealed nine common QTL regions, three segregating in all three backcrosses on SSC1, 0–3 Mb, for body weight, on SSC2, 3–9 Mb, for loin bone-in weight, and on SSC7, 3 Mb, for shoulder weight, and six segregating in two of the three backcrosses, on SSC2, SSC4, SSC6 and SSC10 for backfat thickness, shoulder and ham weights. Besides, 18 QTL regions were specifically identified in one of the three backcrosses, five identified only in BC_LD, seven in BC_DU and six in BC_PI. Beyond identifying and validating QTL, candidate genes and gene variants within the most interesting regions have been explored using functional annotation, gene expression data and SNP identification from RNA-Seq data. The results allowed us to propose a promising list of candidate mutations, those identified in PDE10A, DHCR7, MFN2 and CCNY genes located within the common QTL regions and those identified near ssc-mir-103-1 considered PANK3 regulators to be further analysed.
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Affiliation(s)
- Ángel M. Martínez-Montes
- Departamento de Genética Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Madrid, Spain
| | - Almudena Fernández
- Departamento de Genética Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Madrid, Spain
| | - María Muñoz
- Departamento de Genética Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Madrid, Spain
- Centro de I+D en Cerdo Ibérico, Zafra, Badajoz, Spain
| | - Jose Luis Noguera
- Departament de Genètica i Millora Animal, Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Lleida, Spain
| | - Josep M. Folch
- Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona (UAB), Bellaterra, Spain
- Plant and Animal Genomics, Centre de Recerca en Agrigenòmica (CRAG), Consorci CSIC-IRTA-UAB-UB, Campus UAB, Bellaterra, Spain
| | - Ana I. Fernández
- Departamento de Genética Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Madrid, Spain
- * E-mail:
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Yang SA. Lack of association between glutathione s-transferase mu 1 ( GSTM1) gene polymorphisms and obesity. J Exerc Rehabil 2017; 13:608-612. [PMID: 29114537 PMCID: PMC5667609 DOI: 10.12965/jer.1735128.564] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Accepted: 10/12/2017] [Indexed: 01/24/2023] Open
Abstract
Recent researches suggested that personal individual’s genetic background is contributed to the susceptibility to obesity. The present of this study is to investigate whether single nucleotide polymorphisms (SNPs) of glutathione s-transferase mu 1 (GSTM1) gene are susceptibility to obesity in Korean population. In present study, two SNPs (rs1056806 [Asp142Asp], rs3815029 [promoter]) of GSTM1 gene were genotyped in 117 overweight/obese subjects with a body mass index (BMI)≥23 kg/m2 and 125 nonoverweight/obese with a BMI of 18.5–23.0 kg/m2. Genotyping of two SNPs (rs1056806 and rs3815029) was determined by sequencing after polymerase chain reaction. Logistic regression models (codominant, dominant, recessive, and log-additive models) and allele analysis were used to calculate odds ratio, 95% confidence interval, and P-values. Significant association was considered at P<0.05. Tested two SNPs in GSTM1 genes did not show any significant association with obesity (rs1056806, P=0.24 in codominant 1 model; rs3815029, P=0.59 in codominant 1, P=0.09 in codominant 2, P=0.16 in dominant, P=0.09 in recessive, and P=0.07 in log-additive models). In summary, these results indicate that SNPs of GSTM1 gene did not associated with susceptibility of obesity in the Korean population.
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Affiliation(s)
- Seung-Ae Yang
- College of Nursing, Sungshin Women's University, Seoul, Korea
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