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Liu S, Yan Y, Cui Z, Feng H, Zhong F, Liu Z, Li Y, Ou X, Li W. Relationship between PIWIL1 gene polymorphisms and epithelial ovarian cancer susceptibility among southern Chinese woman: a three-center case-control study. BMC Cancer 2023; 23:1149. [PMID: 38012622 PMCID: PMC10680212 DOI: 10.1186/s12885-023-11651-2] [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: 08/21/2023] [Accepted: 11/17/2023] [Indexed: 11/29/2023] Open
Abstract
OBJECTIVE To investigate the potential correlation between piwi-like RNA-mediated gene silencing 1 (PIWIL1) polymorphisms and susceptibility to epithelial ovarian cancer (EOC). METHODS A case-control study was conducted to evaluate the susceptibility of EOC using multinomial logistic regression analysis. The study analyzed the relationship between five functional single nucleotide polymorphisms (SNPs) in the PIWIL1 gene and EOC risk. Genotyping of 288 cases and 361 healthy samples from South China was identified using a TaqMan assay. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to estimate the relationship between the five selected SNPs and EOC susceptibility. RESULTS Among the five SNPs analyzed, the rs10848087 G > A and rs7957349 G > C variants significantly increased the susceptibility of EOC, rs10773771 C > T was associated with a decreased risk of EOC, while the rs35997018 and rs1106042 variants were not in Hardy-Weinberg equilibrium (p < 0.05). The rs10848087 G > A was significantly associated with increased risk of EOC in individuals with metastasis, FIGO stage I and III, low and high pathological grade, tumor numbers ≤ 3 and > 3, tumor size > 3 cm and ≤ 3 cm, pregnant more than 3 times, pre-menopausal status, and strong positive expression of ER (estrogen receptor), PR (progesterone receptor), PAX8 (paired-box 8), wild-type p53 (tumor protein 53), WT1 (Wilm's tumor gene), P16 (cyclin-dependent kinase inhibitor 2A). In addition, rs10848087 G > A enhanced the EOC risk of cases with negative/mild positive expression of wild p53 and Ki67, and with or without mutant p53 expression. The rs7957349 G > C variant was linked to an increased risk of EOC in subgroups with certain characteristics, including age equal or less than 53 years, metastasis, clinical stage I, low pathological grade, tumor number, tumor size, pregnant times, post-menopause, pre-menopause, and strong positive expression of wild p53 and Ki67 (Antigen identified by monoclonal antibody Ki-67), as well as without mutant p53 expression. The rs10773771 CT/TT alleles were identified to have a protective effect on EOC in women aged 53 years or older, as well as in cases with metastasis, advanced clinical stage, high pathological grade, multiple tumors, tumor size equal to or less than 3 cm, history of pregnancy, post-menopausal status, and strong positive expression of ER, PR, wild-type p53, PAX8, WT1, P16, and Ki67. Furthermore, rs10773771 CT/TT also showed a protective effect in patients with negative or mildly positive expression of PR, PAX8, wild-type p53, WT1, and P16, as well as positive expression of mutant p53. Compared to the reference haplotype GCG, individuals harboring haplotypes GTG were found to have a significantly decreased susceptibility to EOC. PIWIL1 was significantly expressed in the thyroid, pituitary, and adrenal glands with rs7957349 CC alleles. CONCLUSIONS PIWIL1 rs10848087 and rs7957349 were associated with increased risk of EOC, while rs10773771 may have a protective effect against EOC. These genetic variants may serve as potential biomarkers for EOC susceptibility in the South China population.
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Affiliation(s)
- Shanshan Liu
- Department of Hematology and Oncology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou, 510623, China
| | - Yaping Yan
- Department of Hematology and Oncology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou, 510623, China
| | - Zhizhong Cui
- Department of Traditional Chinese Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, Guangdong Province, China
| | - Haipeng Feng
- Department of Pathology, Shunde Hospital, Southern Medical University, Foshan, 528000, Guangdong, China
| | - Fengmei Zhong
- Department of Pathology, Shunde Hospital, Southern Medical University, Foshan, 528000, Guangdong, China
| | - Ziguang Liu
- Department of Pathology, Shunde Hospital, Southern Medical University, Foshan, 528000, Guangdong, China
| | - Yan Li
- Medical Research Center, Shunde Hospital, Southern Medical University, Foshan, 528000, Guangdong, China
| | - Xiang Ou
- The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha, China.
| | - Wenjuan Li
- Medical Research Center, Shunde Hospital, Southern Medical University, Foshan, 528000, Guangdong, China.
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Fernández M, de Coo A, Quintela I, García E, Diniz-Freitas M, Limeres J, Diz P, Blanco J, Carracedo Á, Cruz R. Genetic Susceptibility to Periodontal Disease in Down Syndrome: A Case-Control Study. Int J Mol Sci 2021; 22:ijms22126274. [PMID: 34200970 PMCID: PMC8230717 DOI: 10.3390/ijms22126274] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/07/2021] [Accepted: 06/08/2021] [Indexed: 11/26/2022] Open
Abstract
Severe periodontitis is prevalent in Down syndrome (DS). This study aimed to identify genetic variations associated with periodontitis in individuals with DS. The study group was distributed into DS patients with periodontitis (n = 50) and DS patients with healthy periodontium (n = 36). All samples were genotyped with the “Axiom Spanish Biobank” array, which contains 757,836 markers. An association analysis at the individual marker level using logistic regression, as well as at the gene level applying the sequence kernel association test (SKAT) was performed. The most significant genes were included in a pathway analysis using the free DAVID software. C12orf74 (rs4315121, p = 9.85 × 10−5, OR = 8.84), LOC101930064 (rs4814890, p = 9.61 × 10−5, OR = 0.13), KBTBD12 (rs1549874, p = 8.27 × 10−5, OR = 0.08), PIWIL1 (rs11060842, p = 7.82 × 10−5, OR = 9.05) and C16orf82 (rs62030877, p = 8.92 × 10−5, OR = 0.14) showed a higher probability in the individual analysis. The analysis at the gene level highlighted PIWIL, MIR9-2, LHCGR, TPR and BCR. At the signaling pathway level, PI3K-Akt, long-term depression and FoxO achieved nominal significance (p = 1.3 × 10−2, p = 5.1 × 10−3, p = 1.2 × 10−2, respectively). In summary, various metabolic pathways are involved in the pathogenesis of periodontitis in DS, including PI3K-Akt, which regulates cell proliferation and inflammatory response.
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Affiliation(s)
- María Fernández
- Grupo de Investigación en Odontología Médico-Quirúrgica (OMEQUI), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (M.F.); (E.G.); (J.L.); (P.D.); (J.B.)
| | - Alicia de Coo
- Grupo de Medicina Xenómica, Centro Singular de Investigación en Medicina Molecular y Enfermedades Crónicas (CIMUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (A.d.C.); (I.Q.); (Á.C.); (R.C.)
| | - Inés Quintela
- Grupo de Medicina Xenómica, Centro Singular de Investigación en Medicina Molecular y Enfermedades Crónicas (CIMUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (A.d.C.); (I.Q.); (Á.C.); (R.C.)
- Centro Nacional de Genotipado, Plataforma de Recursos Biomoleculares, Instituto de Salud Carlos III (CeGen-PRB3-ISCIII), Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - Eliane García
- Grupo de Investigación en Odontología Médico-Quirúrgica (OMEQUI), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (M.F.); (E.G.); (J.L.); (P.D.); (J.B.)
| | - Márcio Diniz-Freitas
- Grupo de Investigación en Odontología Médico-Quirúrgica (OMEQUI), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (M.F.); (E.G.); (J.L.); (P.D.); (J.B.)
- Correspondence: ; Tel.: +34-981563100 (ext. 12344)
| | - Jacobo Limeres
- Grupo de Investigación en Odontología Médico-Quirúrgica (OMEQUI), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (M.F.); (E.G.); (J.L.); (P.D.); (J.B.)
| | - Pedro Diz
- Grupo de Investigación en Odontología Médico-Quirúrgica (OMEQUI), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (M.F.); (E.G.); (J.L.); (P.D.); (J.B.)
| | - Juan Blanco
- Grupo de Investigación en Odontología Médico-Quirúrgica (OMEQUI), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (M.F.); (E.G.); (J.L.); (P.D.); (J.B.)
| | - Ángel Carracedo
- Grupo de Medicina Xenómica, Centro Singular de Investigación en Medicina Molecular y Enfermedades Crónicas (CIMUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (A.d.C.); (I.Q.); (Á.C.); (R.C.)
- Centro Nacional de Genotipado, Plataforma de Recursos Biomoleculares, Instituto de Salud Carlos III (CeGen-PRB3-ISCIII), Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain
- Centro Singular de Investigación en Medicina Molecular y Enfermedades Crónicas (CIMUS), CIBERER-Instituto de Salud Carlos III, Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain
- Fundación Pública Galega de Medicina Xenómica—SERGAS, 15706 Santiago de Compostela, Spain
| | - Raquel Cruz
- Grupo de Medicina Xenómica, Centro Singular de Investigación en Medicina Molecular y Enfermedades Crónicas (CIMUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (A.d.C.); (I.Q.); (Á.C.); (R.C.)
- Centro Singular de Investigación en Medicina Molecular y Enfermedades Crónicas (CIMUS), CIBERER-Instituto de Salud Carlos III, Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain
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Pharmacogenomic Biomarkers of Follicle-Stimulating Hormone Receptor Malfunction in Females with Impaired Ovarian Response-A Genetic Survey. J Clin Med 2021; 10:jcm10020170. [PMID: 33561079 PMCID: PMC7825139 DOI: 10.3390/jcm10020170] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 01/01/2021] [Accepted: 01/02/2021] [Indexed: 02/07/2023] Open
Abstract
Follicle-stimulating hormone receptor (FSHR) plays an essential role as one of the most important molecules in response to some of infertility related medications. Impaired ovarian reserve and poor response to such treatments are partially dependent on the FSHR molecule itself. However, the function and drug sensitivity for this receptor may change due to various allele and polymorphisms in the FSHR gene. Studies indicated some of the FSHR-mediated treatments utilized in clinical centers display different outcomes in specific populations, which may arise from FSHR altered genotypes in certain patients. To support the increased demands for reaching the personalized drug and hormone therapy in clinics, focusing on actionable variants through Pharmacogenomic analysis of this receptor may be necessary. The current study tries to display a perspective view on genetic assessments for Pharmacogenomic profiling of the FSHR gene via providing a systematic and critical overview on the genetics of FSHR and its diverse responses to ligands for infertility treatment in females with impaired ovarian responses and show the potential effects of the patient genetic make-up on related binding substances efficacy. All identified functional drug-related alleles were selected through a comprehensive literature search and analyzed. Advanced technologies for the genetic evaluation of them are also discussed properly.
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Pollard CA, Jenkins TG. Epigenetic mechanisms within the sperm epigenome and their diagnostic potential. Best Pract Res Clin Endocrinol Metab 2020; 34:101481. [PMID: 33358482 DOI: 10.1016/j.beem.2020.101481] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The sperm epigenome contains a highly unique and specialized epigenetic landscape. Insightful questions need be asked about these epigenetic signatures and their predictive potential to assess the approximately 1 in 6 couples who experience infertility. Among those couples that do experience infertility, approximately half of the cases involve a male factor. Unfortunately, there is a significant lack of effective diagnostic tools in the male infertility space and thus clinicians are left with little data upon which they can formulate data driven treatment plans. Taking together this information and the striking prevalence of male infertility it's obvious that there is a need for improved diagnostic techniques for male infertility. Many studies have identified what appear to be clinically meaningful epigenetic alterations in sperm that may add utility in the diagnoses of infertility and improvement of pregnancy outcomes. Many researchers believe that continued analysis of these various epigenetic mechanisms may provide powerful predictive insight. In fact, there is promising current data suggesting that the predictive power of DNA methylation, Nuclear Proteins, and miRNA signatures in sperm likely can improve what is currently found with traditional diagnosis of male infertility. The focus of this review is to give a brief understanding to the field of epigenetics and the potential predictive power the sperm epigenome may hold in relation to improving the treatment and diagnosis of male infertility patients.
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Affiliation(s)
- Chad A Pollard
- Department of Physiology and Developmental Biology, Brigham Young University, Provo, UT, USA
| | - Tim G Jenkins
- Department of Physiology and Developmental Biology, Brigham Young University, Provo, UT, USA.
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Zhang S, Xu L, Yu M, Zhang J. Hypomethylation of the DAZ3 promoter in idiopathic asthenospermia: a screening tool for liquid biopsy. Sci Rep 2020; 10:17996. [PMID: 33093613 PMCID: PMC7581813 DOI: 10.1038/s41598-020-75110-9] [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: 03/15/2020] [Accepted: 10/08/2020] [Indexed: 11/27/2022] Open
Abstract
Given the role of the deleted in azoospermia gene in male infertility, whether the somatic deleted in azoospermia methylation status is associated with idiopathic asthenospermia should be determined. To investigate the methylation levels of the deleted in azoospermia promoter in peripheral white blood cells from idiopathic asthenospermia patients relative to those in normozoospermia controls, 61 ethylene diamine tetraacetic acid anticoagulant blood samples were drawn from all participants for DNA isolation. The deleted in azoospermia promoter methylation ratio was detected by MassARRAY-based methylation quantification and confirmed by quantitative methylation-specific polymerase chain reaction. A MassARRAY-based methylation analysis showed that the deleted in azoospermia 3 promoter (0 to − 2 kbp) was significantly hypomethylated in peripheral white blood cells from idiopathic asthenospermia males, specifically one CpG site (− 246 to − 247). Quantitative methylation-specific polymerase chain reaction data further confirmed that the methylation level of the deleted in azoospermia 3 promoter region in idiopathic asthenospermia patients was significantly lower than that in normozoospermia males. The area under the receiver operating characteristic curve determined by quantitative methylation-specific polymerase chain reaction was 0.737 (95% confidence interval: 0.552 to 0.924), with a sensitivity of 53.9% and a specificity of 88.2% at a cut-off level of 74.7%. Therefore, our results suggested that methylation ratio detection of the deleted in azoospermia 3 promoter region by real-time polymerase chain reaction assay is a promising and feasible tool for liquid biopsy in the clinical laboratories. The methylation status of other reported infertility-related genes should also be investigated in peripheral white blood cells.
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Affiliation(s)
- Shichang Zhang
- Department of Laboratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Li Xu
- Department of Clinical Nutrition, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Mengyao Yu
- Department of Laboratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Jiexin Zhang
- Department of Laboratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
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Abstract
Personalized medicine uses a patient's genotype, environment, and lifestyle choices to create a tailored diagnosis and therapy plan, with the goal of minimizing side effects, avoiding lost time with ineffective treatments, and guiding preventative strategies. Although most precision medicine strategies are still within the laboratory phase of development, this article reviews the promising technologies with the greatest potential to improve the diagnosis and treatment options for male infertility, including sperm cell transplantation, genomic editing, and new biomarker assays, based on the latest proteomic and epigenomic studies.
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Affiliation(s)
- Danielle Velez
- Division of Urology, Department of Surgery, Brown University, 2 Dudley Street Suite 185, Providence, RI, USA
| | - Kathleen Hwang
- Department of Urology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
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7
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Environmental Impact on Male (In)Fertility via Epigenetic Route. J Clin Med 2020; 9:jcm9082520. [PMID: 32764255 PMCID: PMC7463911 DOI: 10.3390/jcm9082520] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/21/2020] [Accepted: 07/31/2020] [Indexed: 12/14/2022] Open
Abstract
In the last 40 years, male reproductive health-which is very sensitive to both environmental exposure and metabolic status-has deteriorated and the poor sperm quality observed has been suggested to affect offspring development and its health in adult life. In this scenario, evidence now suggests that epigenetics shapes endocrine functions, linking genetics and environment. During fertilization, spermatozoa share with the oocyte their epigenome, along with their haploid genome, in order to orchestrate embryo development. The epigenetic signature of spermatozoa is the result of a dynamic modulation of the epigenetic marks occurring, firstly, in the testis-during germ cell progression-then, along the epididymis, where spermatozoa still receive molecules, conveyed by epididymosomes. Paternal lifestyle, including nutrition and exposure to hazardous substances, alters the phenotype of the next generations, through the remodeling of a sperm epigenetic blueprint that dynamically reacts to a wide range of environmental and lifestyle stressors. With that in mind, this review will summarize and discuss insights into germline epigenetic plasticity caused by environmental stimuli and diet and how spermatozoa may be carriers of induced epimutations across generations through a mechanism known as paternal transgenerational epigenetic inheritance.
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DNA Methylation Signature for EZH2 Functionally Classifies Sequence Variants in Three PRC2 Complex Genes. Am J Hum Genet 2020; 106:596-610. [PMID: 32243864 PMCID: PMC7212265 DOI: 10.1016/j.ajhg.2020.03.008] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 03/10/2020] [Indexed: 12/16/2022] Open
Abstract
Weaver syndrome (WS), an overgrowth/intellectual disability syndrome (OGID), is caused by pathogenic variants in the histone methyltransferase EZH2, which encodes a core component of the Polycomb repressive complex-2 (PRC2). Using genome-wide DNA methylation (DNAm) data for 187 individuals with OGID and 969 control subjects, we show that pathogenic variants in EZH2 generate a highly specific and sensitive DNAm signature reflecting the phenotype of WS. This signature can be used to distinguish loss-of-function from gain-of-function missense variants and to detect somatic mosaicism. We also show that the signature can accurately classify sequence variants in EED and SUZ12, which encode two other core components of PRC2, and predict the presence of pathogenic variants in undiagnosed individuals with OGID. The discovery of a functionally relevant signature with utility for diagnostic classification of sequence variants in EZH2, EED, and SUZ12 supports the emerging paradigm shift for implementation of DNAm signatures into diagnostics and translational research.
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El Khoury D, Fayjaloun S, Nassar M, Sahakian J, Aad PY. Updates on the Effect of Mycotoxins on Male Reproductive Efficiency in Mammals. Toxins (Basel) 2019; 11:E515. [PMID: 31484408 PMCID: PMC6784030 DOI: 10.3390/toxins11090515] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 08/19/2019] [Accepted: 08/30/2019] [Indexed: 12/15/2022] Open
Abstract
Mycotoxins are ubiquitous and unavoidable harmful fungal products with the ability to cause disease in both animals and humans, and are found in almost all types of foods, with a greater prevalence in hot humid environments. These mycotoxins vary greatly in structure and biochemical effects; therefore, by better understanding the toxicological and pathological aspects of mycotoxins, we can be better equipped to fight the diseases, as well as the biological and economic devastations, they induce. Multiple studies point to the association between a recent increase in male infertility and the increased occurrence of these mycotoxins in the environment. Furthermore, understanding how mycotoxins may induce an accumulation of epimutations during parental lifetimes can shed light on their implications with respect to fertility and reproductive efficiency. By acknowledging the diversity of mycotoxin molecular function and mode of action, this review aims to address the current limited knowledge on the effects of these chemicals on spermatogenesis and the various endocrine and epigenetics patterns associated with their disruptions.
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Affiliation(s)
- Diala El Khoury
- Department of Sciences, Faculty of Natural and Applied Sciences, Notre Dame University-Louaize, Zouk Mosbeh 2207, Lebanon
| | - Salma Fayjaloun
- Department of Sciences, Faculty of Natural and Applied Sciences, Notre Dame University-Louaize, Zouk Mosbeh 2207, Lebanon
| | - Marc Nassar
- Department of Sciences, Faculty of Natural and Applied Sciences, Notre Dame University-Louaize, Zouk Mosbeh 2207, Lebanon
| | - Joseph Sahakian
- Department of Sciences, Faculty of Natural and Applied Sciences, Notre Dame University-Louaize, Zouk Mosbeh 2207, Lebanon
| | - Pauline Y Aad
- Department of Sciences, Faculty of Natural and Applied Sciences, Notre Dame University-Louaize, Zouk Mosbeh 2207, Lebanon.
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AHLAWAT SONIKA, SAROVA NEHA, SHARMA REKHA, ARORA REENA, TANTIA MS. Promoter DNA methylation and expression analysis of PIWIL1 gene in purebred and crossbred cattle bulls. THE INDIAN JOURNAL OF ANIMAL SCIENCES 2019. [DOI: 10.56093/ijans.v89i7.92014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Major credit for India being the largest producer of milk in the world, goes to crossbred cows produced by inseminating low-producing indigenous cattle with semen from high producing exotic bulls. However, over the years, the policy of crossbreeding has been confronted with a major problem of subfertility in crossbred male progenies, culminating into disposal of a major fraction of mature bulls. Many studies have demonstrated relationship between epigenetic alterations and male fertility across different species. PIWIL1 is an important candidate gene for spermatogenesis and germ line development. Negative correlation between DNA methylation and expression of this gene has been highlighted in inter species hybrids of cattle and yaks. The present study envisaged elucidating promoter methylation status and expression profile of PIWIL1 gene in exotic Holstein Friesian cattle, indigenous Sahiwal cattle and their crossbreds with varying semen motility parameters. Semen samples were collected from bulls for isolation of DNA and RNA from spermatozoa. Bisulfite converted DNA was used to amplify promoter of PIWIL1 gene using methylation specific primers. The amplified products were sequenced after cloning in pTZ57R/ T vector. The degree of methylation of the PIWIL1 promoter region was significantly higher in poor motility crossbred bulls (7.17%) as compared to good motility crossbreds (1.02%), Sahiwal (1.02%) and Holstein Friesian bulls (0.77%). PIWIL1 expression was 1.75, 1.71 and 1.59 folds higher in HF, Sahiwal and good motility crossbreds, respectively as compared to poor motility crossbreds.
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Sarkar S, Sujit KM, Singh V, Pandey R, Trivedi S, Singh K, Gupta G, Rajender S. Array-based DNA methylation profiling reveals peripheral blood differential methylation in male infertility. Fertil Steril 2019; 112:61-72.e1. [DOI: 10.1016/j.fertnstert.2019.03.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 03/13/2019] [Accepted: 03/13/2019] [Indexed: 12/27/2022]
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DNA methylation profiling of peripheral blood samples is a promising new approach to screen for male infertility. Fertil Steril 2019; 112:32-33. [PMID: 31133383 DOI: 10.1016/j.fertnstert.2019.04.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 04/09/2019] [Indexed: 12/30/2022]
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Zhang K, Xu J, Zhang Z, Huang Y, Ruan Z, Chen S, Zhu F, You X, Jia C, Meng Q, Gu R, Lin X, Xu J, Xu P, Zhang Z, Shi Q. A comparative transcriptomic study on developmental gonads provides novel insights into sex change in the protandrous black porgy (Acanthopagrus schlegelii). Genomics 2018; 111:277-283. [PMID: 30439483 DOI: 10.1016/j.ygeno.2018.11.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 10/31/2018] [Accepted: 11/09/2018] [Indexed: 10/27/2022]
Abstract
Protandrous black porgy (Acanthopagrus schlegelii) is a popular and valuable commercial marine fish in China and East Asian countries. Controlling and managing its breeding has been an imperative step towards obtaining a sustainable supply of this fish in aquaculture production systems. Therefore, study on the molecular mechanisms of sex change in black porgy has both scientific and commercial importance. Previously, we identified some candidate genes related to sex determination and differentiation from a high-quality genome assembly of the black porgy. In the present study, transcriptome sequencing of developmental gonads (including testis, ovotestis and ovary) of black porgy was performed to further investigate the sex-change mechanisms. Our results showed that the highly expressed male-related genes (dmrt1, piwi1, piwi2, sox9, sox30 and amh) at the male phase were significantly down-regulated to a substantial degree at the intersexual stage, and the female-related genes (jnk1, vasa, wnt4, figla and foxl2) were distinctly up-regulated when the fish grows into a female adult, suggesting the potential roles of these genes in sex change of the black porgy. These data also support a previous hypothesis that the femaleness will be switched on when the testis is entering the degenerated stage through the diminished dmrt1 expression. Our transcriptome data provide a very useful genomic resource for future studies on sex change and practical aquaculture in the black porgy.
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Affiliation(s)
- Kai Zhang
- School of Animal and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; Shenzhen Key Lab of Marine Genomics, Guangdong Provincial Key Lab of Molecular Breeding in Marine Economic Animals, BGI Academy of Marine Sciences, BGI Marine, BGI, Shenzhen 518083, China.
| | - Jin Xu
- Jiangsu Marine Fishery Research Institute, Nantong, Jiangsu 226007, China
| | - Zhiwei Zhang
- Jiangsu Marine Fishery Research Institute, Nantong, Jiangsu 226007, China
| | - Yu Huang
- Shenzhen Key Lab of Marine Genomics, Guangdong Provincial Key Lab of Molecular Breeding in Marine Economic Animals, BGI Academy of Marine Sciences, BGI Marine, BGI, Shenzhen 518083, China.
| | - Zhiqiang Ruan
- Shenzhen Key Lab of Marine Genomics, Guangdong Provincial Key Lab of Molecular Breeding in Marine Economic Animals, BGI Academy of Marine Sciences, BGI Marine, BGI, Shenzhen 518083, China.
| | - Shuyin Chen
- Jiangsu Marine Fishery Research Institute, Nantong, Jiangsu 226007, China
| | - Fei Zhu
- Jiangsu Marine Fishery Research Institute, Nantong, Jiangsu 226007, China
| | - Xinxin You
- Shenzhen Key Lab of Marine Genomics, Guangdong Provincial Key Lab of Molecular Breeding in Marine Economic Animals, BGI Academy of Marine Sciences, BGI Marine, BGI, Shenzhen 518083, China.
| | - Chaofeng Jia
- Jiangsu Marine Fishery Research Institute, Nantong, Jiangsu 226007, China
| | - Qian Meng
- Jiangsu Marine Fishery Research Institute, Nantong, Jiangsu 226007, China
| | - Ruobo Gu
- BGI-Zhenjiang Institute of Hydrobiology, BGI Marine, Zhenjiang 212000, China.
| | - Xueqiang Lin
- Shenzhen Key Lab of Marine Genomics, Guangdong Provincial Key Lab of Molecular Breeding in Marine Economic Animals, BGI Academy of Marine Sciences, BGI Marine, BGI, Shenzhen 518083, China; Hainan BGI Marine Science and Technology Co. Ltd., BGI Marine, Wenchang 571327, China.
| | - Junmin Xu
- BGI-Zhenjiang Institute of Hydrobiology, BGI Marine, Zhenjiang 212000, China; School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan.
| | - Pao Xu
- Freshwater Fishery Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu 214081, China.
| | - Zhiyong Zhang
- Jiangsu Marine Fishery Research Institute, Nantong, Jiangsu 226007, China.
| | - Qiong Shi
- Shenzhen Key Lab of Marine Genomics, Guangdong Provincial Key Lab of Molecular Breeding in Marine Economic Animals, BGI Academy of Marine Sciences, BGI Marine, BGI, Shenzhen 518083, China; BGI-Zhenjiang Institute of Hydrobiology, BGI Marine, Zhenjiang 212000, China.
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14
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Fang X, Chen C, Cai J, Xiang E, Li J, Chen P. Genome-wide methylation study of whole blood cells DNA in men with congenital hypopituitarism disease. Int J Mol Med 2018; 43:155-166. [PMID: 30365064 PMCID: PMC6257856 DOI: 10.3892/ijmm.2018.3945] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 10/10/2018] [Indexed: 11/20/2022] Open
Abstract
Congenital hypopituitarism (CH) is a relatively rare disease that is characterized by the deficiency of one or more hormones secreted by the pituitary gland, which leads to metabolic disorders, amenorrhea and infertility. However, the underlying molecular mechanisms of CH have not yet been fully elucidated. The present study evaluated the genome-wide methylation level of whole blood DNA in 12 patients with CH and 12 age-matched controls using Illumina Human Methylation 450 array, in order to determine the roles of epigenetic regulation in the pathogenesis of CH. The results demonstrated that the methylation levels of 51 CpG sites were significantly different between the patients with CH and the controls. Functional enrichment analysis identified that the aberrant methylated genes were enriched in gene sets associated with metabolic or cellular process, immune system process and reproduction. In addition, two CpG sites on genes LIM domain kinase 2 (LIMK2) and piwi-like RNA-mediated gene silencing 2 (PIWIL2), which are involved in spermatogenesis and/or testicular development, were identified to be hypermethylated in male patients with CH. The hypermethylation of these sites was further validated in another 40 patients with CH and 40 matched controls with a quantitative bisulfite pyrosequencing method, and the methylation levels of these two loci demonstrated promising diagnostic capacities for CH. The present results suggested that aberrant methylation of genes may be involved in the pathogenesis of CH, and hypermethylation of LIMK2 and PIWIL2 may contribute to the infertility of male patients with CH. Further studies are required to elucidate the underlying mechanisms of the epigenetic regulation of these genes.
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Affiliation(s)
- Xuqian Fang
- Department of Pathology, Ruijin Hospital North, Shanghai Jiao Tong University School of Medicine, Shanghai 201821, P.R. China
| | - Changqiang Chen
- Department of Clinical Medicine, Ruijin Hospital North, Shanghai Jiao Tong University School of Medicine, Shanghai 201821, P.R. China
| | - Jialin Cai
- Clinical Research Center, Ruijin Hospital North, Shanghai Jiao Tong University School of Medicine, Shanghai 201821, P.R. China
| | - Enfei Xiang
- Clinical Research Center, Ruijin Hospital North, Shanghai Jiao Tong University School of Medicine, Shanghai 201821, P.R. China
| | - Jingquan Li
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R. China
| | - Peizhan Chen
- Clinical Research Center, Ruijin Hospital North, Shanghai Jiao Tong University School of Medicine, Shanghai 201821, P.R. China
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15
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Marwitz S, Scheufele S, Perner S, Reck M, Ammerpohl O, Goldmann T. Epigenetic modifications of the immune-checkpoint genes CTLA4 and PDCD1 in non-small cell lung cancer results in increased expression. Clin Epigenetics 2017; 9:51. [PMID: 28503213 PMCID: PMC5426039 DOI: 10.1186/s13148-017-0354-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 05/05/2017] [Indexed: 11/20/2022] Open
Abstract
Targeting checkpoint inhibitors using monoclonal antibodies results in significantly better outcome of cancer patients compared to conventional chemotherapy. However, the current companion diagnostics to predict response is so far suboptimal, since they base on more or less reliable immunohistochemical approaches. In order to overcome these limitations, we analyzed epigenetic modifications of PDCD1 (PD1), CD274 (PD-L1), and CTLA4 in NSCLC tissues from 39 patients. Results were correlated with transcriptome data. Significant differences in the CpG-methylation patterns between tumor tissues and matched controls were observed for CTLA4 and PDCD1 (PD1) showing a decreased methylation of these genes compared to matched tumor-free tissues from the same patients. Results were confirmed by bisulfide sequencing in an independent validation cohort. Hypomethylation also resulted in increased expression of these genes as shown by transcriptome data. These epigenetic pathways as a hallmark of NSCLC might be useful to generate more precise diagnostic approaches in the future.
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Affiliation(s)
- Sebastian Marwitz
- Campus Luebeck and the Research Center Borstel, Leibniz Center for Medicine and Biosciences, Pathology of the University Medical Center Schleswig-Holstein, 23538 Luebeck, Germany.,Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Großhansdorf, Germany
| | - Swetlana Scheufele
- Campus Luebeck and the Research Center Borstel, Leibniz Center for Medicine and Biosciences, Pathology of the University Medical Center Schleswig-Holstein, 23538 Luebeck, Germany
| | - Sven Perner
- Campus Luebeck and the Research Center Borstel, Leibniz Center for Medicine and Biosciences, Pathology of the University Medical Center Schleswig-Holstein, 23538 Luebeck, Germany
| | - Martin Reck
- LungenClinic Großhansdorf, Großhansdorf, Germany.,Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Großhansdorf, Germany
| | - Ole Ammerpohl
- Institute of Human Genetics, Christian-Albrechts-University Kiel and University Medical Center Schleswig-Holstein, Campus Kiel, Kiel, Germany.,Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Großhansdorf, Germany
| | - Torsten Goldmann
- Campus Luebeck and the Research Center Borstel, Leibniz Center for Medicine and Biosciences, Pathology of the University Medical Center Schleswig-Holstein, 23538 Luebeck, Germany.,Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Großhansdorf, Germany
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16
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Sivagurunathan S, Palanisamy K, Arunachalam JP, Chidambaram S. Possible role of HIWI2 in modulating tight junction proteins in retinal pigment epithelial cells through Akt signaling pathway. Mol Cell Biochem 2016; 427:145-156. [DOI: 10.1007/s11010-016-2906-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 12/03/2016] [Indexed: 12/22/2022]
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17
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Camprubí C, Salas-Huetos A, Aiese-Cigliano R, Godo A, Pons MC, Castellano G, Grossmann M, Sanseverino W, Martin-Subero JI, Garrido N, Blanco J. Spermatozoa from infertile patients exhibit differences of DNA methylation associated with spermatogenesis-related processes: an array-based analysis. Reprod Biomed Online 2016; 33:709-719. [DOI: 10.1016/j.rbmo.2016.09.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 08/30/2016] [Accepted: 09/01/2016] [Indexed: 01/09/2023]
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18
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Giuliani C, Sazzini M, Bacalini MG, Pirazzini C, Marasco E, Fontanesi E, Franceschi C, Luiselli D, Garagnani P. Epigenetic Variability across Human Populations: A Focus on DNA Methylation Profiles of the KRTCAP3, MAD1L1 and BRSK2 Genes. Genome Biol Evol 2016; 8:2760-73. [PMID: 27503294 PMCID: PMC5630933 DOI: 10.1093/gbe/evw186] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Natural epigenetic diversity has been suggested as a key mechanism in microevolutionary processes due to its capability to create phenotypic variability within individuals and populations. It constitutes an important reservoir of variation potentially useful for rapid adaptation in response to environmental stimuli. The analysis of population epigenetic structure represents a possible tool to study human adaptation and to identify external factors that are able to naturally shape human DNA methylation variability. The aim of this study is to investigate the dynamics that create epigenetic diversity between and within different human groups. To this end, we first used publicly available epigenome-wide data to explore population-specific DNA methylation changes that occur at macro-geographic scales. Results from this analysis suggest that nutrients, UVA exposure and pathogens load might represent the main environmental factors able to shape DNA methylation profiles. Then, we evaluated DNA methylation of candidate genes (KRTCAP3, MAD1L1, and BRSK2), emerged from the previous analysis, in individuals belonging to different populations from Morocco, Nigeria, Philippines, China, and Italy, but living in the same Italian city. DNA methylation of the BRSK2 gene is significantly different between Moroccans and Nigerians (pairwise t-test: CpG 6 P-value = 5.2*10 (-) (3); CpG 9 P-value = 2.6*10 (-) (3); CpG 10 P-value = 3.1*10 (-) (3); CpG 11 P-value = 2.8*10 (-) (3)). Comprehensively, these results suggest that DNA methylation diversity is a source of variability in human groups at macro and microgeographical scales and that population demographic and adaptive histories, as well as the individual ancestry, actually influence DNA methylation profiles.
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Affiliation(s)
- Cristina Giuliani
- Department of Biological Geological and Environmental Sciences, Laboratory of Molecular Anthropology & Centre for Genome Biology, University of Bologna, Italy
| | - Marco Sazzini
- Department of Biological Geological and Environmental Sciences, Laboratory of Molecular Anthropology & Centre for Genome Biology, University of Bologna, Italy
| | - Maria Giulia Bacalini
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Italy Interdepartmental Center "L. Galvani" (C.I.G.), University of Bologna, Italy
| | - Chiara Pirazzini
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Italy Interdepartmental Center "L. Galvani" (C.I.G.), University of Bologna, Italy
| | - Elena Marasco
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Italy Interdepartmental Center "L. Galvani" (C.I.G.), University of Bologna, Italy
| | - Elisa Fontanesi
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Italy
| | - Claudio Franceschi
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Italy Interdepartmental Center "L. Galvani" (C.I.G.), University of Bologna, Italy IRCCS Institute of Neurological Sciences, Bologna, Italy
| | - Donata Luiselli
- Department of Biological Geological and Environmental Sciences, Laboratory of Molecular Anthropology & Centre for Genome Biology, University of Bologna, Italy
| | - Paolo Garagnani
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Italy Interdepartmental Center "L. Galvani" (C.I.G.), University of Bologna, Italy Center for Applied Biomedical Research (CRBA), St. Orsola-Malpighi University Hospital, Bologna, Italy
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19
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Uysal F, Akkoyunlu G, Ozturk S. DNA methyltransferases exhibit dynamic expression during spermatogenesis. Reprod Biomed Online 2016; 33:690-702. [PMID: 27687053 DOI: 10.1016/j.rbmo.2016.08.022] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 08/22/2016] [Accepted: 08/23/2016] [Indexed: 01/12/2023]
Abstract
DNA methylation is one of the epigenetic marks and plays critically important functions during spermatogenesis in mammals. DNA methylation is catalysed by DNA methyltransferase (DNMT) enzymes, which are responsible for the addition of a methyl group to the fifth carbon atom of the cytosine residues within cytosine-phosphate-guanine (CpG) and non-CpG dinucleotide sites. Structurally and functionally five different DNMT enzymes have been identified in mammals, including DNMT1, DNMT2, DNMT3A, DNMT3B and DNMT3L. These enzymes mainly play roles in two DNA methylation processes: maintenance and de novo. While DNMT1 is primarily responsible for maintenance methylation via transferring methyl groups to the hemi-methylated DNA strands following DNA replication, both DNMT3A and DNMT3B are capable of methylating unmodified cytosine residues, known as de novo methylation. However, DNMT3L indirectly participates in de novo methylation, and DNMT2 carries out methylation of the cytosine 38 in the anticodon loop of aspartic acid transfer RNA. To date, many studies have been performed to determine spatial and temporal expression levels and functional features of the DNMT in the male germ cells. This review article comprehensively discusses dynamic expression of the DNMT during spermatogenesis and their relationship with male infertility development in the light of existing investigations.
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Affiliation(s)
- Fatma Uysal
- Department of Histology and Embryology, Akdeniz University, School of Medicine, Campus 07070, Antalya, Turkey
| | - Gokhan Akkoyunlu
- Department of Histology and Embryology, Akdeniz University, School of Medicine, Campus 07070, Antalya, Turkey
| | - Saffet Ozturk
- Department of Histology and Embryology, Akdeniz University, School of Medicine, Campus 07070, Antalya, Turkey.
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20
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Bunkar N, Pathak N, Lohiya NK, Mishra PK. Epigenetics: A key paradigm in reproductive health. Clin Exp Reprod Med 2016; 43:59-81. [PMID: 27358824 PMCID: PMC4925870 DOI: 10.5653/cerm.2016.43.2.59] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2016] [Revised: 02/06/2016] [Accepted: 03/16/2016] [Indexed: 12/17/2022] Open
Abstract
It is well established that there is a heritable element of susceptibility to chronic human ailments, yet there is compelling evidence that some components of such heritability are transmitted through non-genetic factors. Due to the complexity of reproductive processes, identifying the inheritance patterns of these factors is not easy. But little doubt exists that besides the genomic backbone, a range of epigenetic cues affect our genetic programme. The inter-generational transmission of epigenetic marks is believed to operate via four principal means that dramatically differ in their information content: DNA methylation, histone modifications, microRNAs and nucleosome positioning. These epigenetic signatures influence the cellular machinery through positive and negative feedback mechanisms either alone or interactively. Understanding how these mechanisms work to activate or deactivate parts of our genetic programme not only on a day-to-day basis but also over generations is an important area of reproductive health research.
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Affiliation(s)
- Neha Bunkar
- Translational Research Laboratory, School of Biological Sciences, Dr. Hari Singh Central University, Sagar, India
| | - Neelam Pathak
- Translational Research Laboratory, School of Biological Sciences, Dr. Hari Singh Central University, Sagar, India.; Reproductive Physiology Laboratory, Centre for Advanced Studies, University of Rajasthan, Jaipur, India
| | - Nirmal Kumar Lohiya
- Reproductive Physiology Laboratory, Centre for Advanced Studies, University of Rajasthan, Jaipur, India
| | - Pradyumna Kumar Mishra
- Translational Research Laboratory, School of Biological Sciences, Dr. Hari Singh Central University, Sagar, India.; Department of Molecular Biology, National Institute for Research in Environmental Health (ICMR), Bhopal, India
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21
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Marwitz S, Depner S, Dvornikov D, Merkle R, Szczygieł M, Müller-Decker K, Lucarelli P, Wäsch M, Mairbäurl H, Rabe KF, Kugler C, Vollmer E, Reck M, Scheufele S, Kröger M, Ammerpohl O, Siebert R, Goldmann T, Klingmüller U. Downregulation of the TGFβ Pseudoreceptor BAMBI in Non-Small Cell Lung Cancer Enhances TGFβ Signaling and Invasion. Cancer Res 2016; 76:3785-801. [PMID: 27197161 DOI: 10.1158/0008-5472.can-15-1326] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 03/11/2016] [Indexed: 11/16/2022]
Abstract
Non-small cell lung cancer (NSCLC) is characterized by early metastasis and has the highest mortality rate among all solid tumors, with the majority of patients diagnosed at an advanced stage where curative therapeutic options are lacking. In this study, we identify a targetable mechanism involving TGFβ elevation that orchestrates tumor progression in this disease. Substantial activation of this pathway was detected in human lung cancer tissues with concomitant downregulation of BAMBI, a negative regulator of the TGFβ signaling pathway. Alterations of epithelial-to-mesenchymal transition (EMT) marker expression were observed in lung cancer samples compared with tumor-free tissues. Distinct alterations in the DNA methylation of the gene regions encoding TGFβ pathway components were detected in NSCLC samples compared with tumor-free lung tissues. In particular, epigenetic silencing of BAMBI was identified as a hallmark of NSCLC. Reconstitution of BAMBI expression in NSCLC cells resulted in a marked reduction of TGFβ-induced EMT, migration, and invasion in vitro, along with reduced tumor burden and tumor growth in vivo In conclusion, our results demonstrate how BAMBI downregulation drives the invasiveness of NSCLC, highlighting TGFβ signaling as a candidate therapeutic target in this setting. Cancer Res; 76(13); 3785-801. ©2016 AACR.
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Affiliation(s)
- Sebastian Marwitz
- Pathology of the University Hospital of Lübeck and the Leibniz Research Center Borstel, Borstel, Germany. Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Groβhansdorf, Germany
| | - Sofia Depner
- Systems Biology of Signal Transduction, German Cancer Research Center, Heidelberg, Germany. BIOQUANT, University of Heidelberg, Heidelberg, Germany. Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research (DZL), Heidelberg, Germany
| | - Dmytro Dvornikov
- Systems Biology of Signal Transduction, German Cancer Research Center, Heidelberg, Germany. Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research (DZL), Heidelberg, Germany
| | - Ruth Merkle
- Systems Biology of Signal Transduction, German Cancer Research Center, Heidelberg, Germany. BIOQUANT, University of Heidelberg, Heidelberg, Germany. Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research (DZL), Heidelberg, Germany
| | - Magdalena Szczygieł
- Systems Biology of Signal Transduction, German Cancer Research Center, Heidelberg, Germany. Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research (DZL), Heidelberg, Germany
| | | | - Philippe Lucarelli
- Systems Biology of Signal Transduction, German Cancer Research Center, Heidelberg, Germany. Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research (DZL), Heidelberg, Germany
| | - Marvin Wäsch
- Systems Biology of Signal Transduction, German Cancer Research Center, Heidelberg, Germany. Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research (DZL), Heidelberg, Germany
| | - Heimo Mairbäurl
- Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research (DZL), Heidelberg, Germany. Medical Clinic VII, Sports Medicine, University Hospital Heidelberg, Heidelberg, Germany
| | - Klaus F Rabe
- Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Groβhansdorf, Germany. LungenClinic Groβhansdorf, Groβhansdorf, Germany. Christian Albrechts University Kiel, Kiel, Germany
| | - Christian Kugler
- Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Groβhansdorf, Germany. LungenClinic Groβhansdorf, Groβhansdorf, Germany
| | - Ekkehard Vollmer
- Pathology of the University Hospital of Lübeck and the Leibniz Research Center Borstel, Borstel, Germany. Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Groβhansdorf, Germany
| | - Martin Reck
- Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Groβhansdorf, Germany. LungenClinic Groβhansdorf, Groβhansdorf, Germany
| | - Swetlana Scheufele
- Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Groβhansdorf, Germany. Institute of Human Genetics, Christian-Albrechts-University Kiel and University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Maren Kröger
- Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Groβhansdorf, Germany. Institute of Human Genetics, Christian-Albrechts-University Kiel and University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Ole Ammerpohl
- Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Groβhansdorf, Germany. Institute of Human Genetics, Christian-Albrechts-University Kiel and University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Reiner Siebert
- Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Groβhansdorf, Germany. Institute of Human Genetics, Christian-Albrechts-University Kiel and University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Torsten Goldmann
- Pathology of the University Hospital of Lübeck and the Leibniz Research Center Borstel, Borstel, Germany. Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Groβhansdorf, Germany
| | - Ursula Klingmüller
- Systems Biology of Signal Transduction, German Cancer Research Center, Heidelberg, Germany. BIOQUANT, University of Heidelberg, Heidelberg, Germany. Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research (DZL), Heidelberg, Germany.
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22
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Gunes S, Arslan MA, Hekim GNT, Asci R. The role of epigenetics in idiopathic male infertility. J Assist Reprod Genet 2016; 33:553-569. [PMID: 26941097 DOI: 10.1007/s10815-016-0682-8] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 02/22/2016] [Indexed: 12/17/2022] Open
Abstract
Infertility is a complex disorder with multiple genetic and environmental causes. Although some specific mutations have been identified, other factors responsible for sperm defects remain largely unknown. Despite considerable efforts to identify the pathophysiology of the disease, we cannot explain the underlying mechanisms of approximately half of infertility cases. This study reviews current data on epigenetic regulation and idiopathic male infertility. Recent data have shown an association between epigenetic modifications and idiopathic infertility. In this regard, epigenetics has emerged as one of the promising research areas in understanding male infertility. Many studies have indicated that epigenetic modifications, including DNA methylation in imprinted and developmental genes, histone tail modifications and short non-coding RNAs in spermatozoa may have a role in idiopathic male infertility.
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Affiliation(s)
- Sezgin Gunes
- Faculty of Medicine, Department of Medical Biology, Ondokuz Mayis University, 55139, Samsun, Turkey.
- Health Sciences Institute, Department of Multidisciplinary Molecular Medicine, Ondokuz Mayis University, 55139, Samsun, Turkey.
| | - Mehmet Alper Arslan
- Faculty of Medicine, Department of Medical Biology, Ondokuz Mayis University, 55139, Samsun, Turkey.
- Health Sciences Institute, Department of Multidisciplinary Molecular Medicine, Ondokuz Mayis University, 55139, Samsun, Turkey.
| | | | - Ramazan Asci
- Health Sciences Institute, Department of Multidisciplinary Molecular Medicine, Ondokuz Mayis University, 55139, Samsun, Turkey
- Faculty of Medicine, Department of Urology, Ondokuz Mayis University, 55139, Samsun, Turkey
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23
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Houseman EA, Kim S, Kelsey KT, Wiencke JK. DNA Methylation in Whole Blood: Uses and Challenges. Curr Environ Health Rep 2016; 2:145-54. [PMID: 26231364 DOI: 10.1007/s40572-015-0050-3] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Due to its convenience, the blood is commonly used in epigenomic studies, but its heterogeneous nature leads to interpretation difficulties, given the now widely recognized potential for confounding by cell composition effects. Many recent publications have reported significant associations between DNA methylation and a variety of health conditions or exposures. In this review, we summarize many of these recent publications, highlighting the findings in the context of potential cell composition effects, particularly findings that are indicative of immune response or inflammation. While there is substantial evidence for confounding by cell composition, there is nevertheless also evidence for differential DNA methylation suggestive of processes that are not cell mediated. We conclude that important biological insights still may be gained from studying DNA methylation in whole blood, either by investigating the cell composition effects themselves or processes that demonstrate associations even after adjusting for cell composition effects.
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Affiliation(s)
- E Andres Houseman
- School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA,
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24
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Luo LF, Hou CC, Yang WX. Small non-coding RNAs and their associated proteins in spermatogenesis. Gene 2015; 578:141-57. [PMID: 26692146 DOI: 10.1016/j.gene.2015.12.020] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 11/30/2015] [Accepted: 12/08/2015] [Indexed: 12/26/2022]
Abstract
The importance of the gene regulation roles of small non-coding RNAs and their protein partners is of increasing focus. In this paper, we reviewed three main small RNA species which appear to affect spermatogenesis. MicroRNAs (miRNAs) are single stand RNAs derived from transcripts containing stem-loops and hairpins which target corresponding mRNAs and affect their stability or translation. Many miRNA species have been found to be related to normal male germ cell development. The biogenesis of piRNAs is still largely unknown but several models have been proposed. Some piRNAs and PIWIs target transposable elements and it is these that may be active in regulating translation or stem cell maintenance. endo-siRNAs may also participate in sperm development. Some possible interactions between different kinds of small RNAs have even been suggested. We also show that male germ granules are seen to have a close relationship with a considerable number of mRNAs and small RNAs. Those special structures may also participate in sperm development.
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Affiliation(s)
- Ling-Feng Luo
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Cong-Cong Hou
- School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Wan-Xi Yang
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China.
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25
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Methylation of the Gpat2 promoter regulates transient expression during mouse spermatogenesis. Biochem J 2015; 471:211-20. [PMID: 26268560 PMCID: PMC4613502 DOI: 10.1042/bj20150730] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 08/12/2015] [Indexed: 12/13/2022]
Abstract
We studied the expression pattern and the mechanisms governing the transcription of GPAT2, an enzyme that is highly expressed in testis. GPAT2 is regulated epigenetically and its expression correlates with the initiation of meiosis. Spermatogenesis is a highly regulated process that involves both mitotic and meiotic divisions, as well as cellular differentiation to yield mature spermatozoa from undifferentiated germinal stem cells. Although Gpat2 was originally annotated as encoding a glycerol-3-phosphate acyltransferase by sequence homology to Gpat1, GPAT2 is highly expressed in testis but not in lipogenic tissues and is not up-regulated during adipocyte differentiation. New data show that GPAT2 is required for the synthesis of piRNAs (piwi-interacting RNAs), a group of small RNAs that protect the germ cell genome from retrotransposable elements. In order to understand the relationship between GPAT2 and its role in the testis, we focused on Gpat2 expression during the first wave of mouse spermatogenesis. Gpat2 expression was analysed by qPCR (quantitative real-time PCR), in situ hybridization, immunohistochemistry and Western blotting. Gpat2 mRNA content and protein expression were maximal at 15 dpp (days post-partum) and were restricted to pachytene spermatocytes. To achieve this transient expression, both epigenetic mechanisms and trans-acting factors are involved. In vitro assays showed that Gpat2 expression correlates with DNA demethylation and histone acetylation and that it is up-regulated by retinoic acid. Epigenetic regulation by DNA methylation was confirmed in vivo in germ cells by bisulfite sequencing of the Gpat2 promoter. Consistent with the initiation of meiosis at 11 dpp, methylation decreased dramatically. Thus, Gpat2 is expressed at a specific stage of spermatogenesis, consistent with piRNA synthesis and meiosis I prophase, and its on–off expression pattern responds predominantly to epigenetic modifications.
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Sharma A, Jamil MA, Nuesgen N, Schreiner F, Priebe L, Hoffmann P, Herns S, Nöthen MM, Fröhlich H, Oldenburg J, Woelfle J, El-Maarri O. DNA methylation signature in peripheral blood reveals distinct characteristics of human X chromosome numerical aberrations. Clin Epigenetics 2015. [PMID: 26221191 PMCID: PMC4517491 DOI: 10.1186/s13148-015-0112-2] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Abnormal sex chromosome numbers in humans are observed in Turner (45,X) and Klinefelter (47,XXY) syndromes. Both syndromes are associated with several clinical phenotypes, whose molecular mechanisms are obscure, and show a range of inter-individual penetrance. In order to understand the effect of abnormal numbers of X chromosome on the methylome and its correlation to the variable clinical phenotype, we performed a genome-wide methylation analysis using MeDIP and Illumina's Infinium assay on individuals with four karyotypes: 45,X, 46,XY, 46,XX, and 47,XXY. RESULTS DNA methylation changes were widespread on all autosomal chromosomes in 45,X and in 47,XXY individuals, with Turner individuals presenting five times more affected loci. Differentially methylated CpGs, in most cases, have intermediate methylation levels and tend to occur outside CpG islands, especially in individuals with Turner syndrome. The X inactivation process appears to be less effective in Klinefelter syndrome as methylation on the X was decreased compared to normal female samples. In a large number of individuals, we verified several loci by pyrosequencing and observed only weak inter-loci correlations between the verified regions. This suggests a certain stochastic/random contribution to the methylation changes at each locus. Interestingly, methylation patterns on some PAR2 loci differ between male and Turner syndrome individuals and between female and Klinefelter syndrome individuals, which possibly contributed to this distinguished and unique autosomal methylation patterns in Turner and Klinefelter syndrome individuals. CONCLUSIONS The presented data clearly show that gain or loss of an X chromosome results in different epigenetic effects, which are not necessary opposite.
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Affiliation(s)
- Amit Sharma
- Institute of Experimental Hematology and Transfusion Medicine, University of Bonn, Sigmund-Freud Str. 25, 53127 Bonn, Germany
| | - Muhammad Ahmer Jamil
- Institute of Experimental Hematology and Transfusion Medicine, University of Bonn, Sigmund-Freud Str. 25, 53127 Bonn, Germany
| | - Nicole Nuesgen
- Institute of Experimental Hematology and Transfusion Medicine, University of Bonn, Sigmund-Freud Str. 25, 53127 Bonn, Germany
| | - Felix Schreiner
- Pediatric Endocrinology Division, Children's Hospital, University of Bonn, Bonn, Germany
| | - Lutz Priebe
- Institute of Human Genetics, University of Bonn, Bonn, Germany
| | - Per Hoffmann
- Institute of Human Genetics, University of Bonn, Bonn, Germany
| | - Stefan Herns
- Institute of Human Genetics, University of Bonn, Bonn, Germany
| | - Markus M Nöthen
- Institute of Human Genetics, University of Bonn, Bonn, Germany.,Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
| | - Holger Fröhlich
- Institute for Computer Science, c/o Bonn-Aachen International Center for IT, Algorithmic Bioinformatics, University of Bonn, Dahlmannstr. 2, 53113 Bonn, Germany
| | - Johannes Oldenburg
- Institute of Experimental Hematology and Transfusion Medicine, University of Bonn, Sigmund-Freud Str. 25, 53127 Bonn, Germany
| | - Joachim Woelfle
- Pediatric Endocrinology Division, Children's Hospital, University of Bonn, Bonn, Germany
| | - Osman El-Maarri
- Institute of Experimental Hematology and Transfusion Medicine, University of Bonn, Sigmund-Freud Str. 25, 53127 Bonn, Germany
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Yao W, Li Y, Li B, Luo H, Xu H, Pan Z, Xie Z, Li Q. Epigenetic regulation of bovine spermatogenic cell-specific gene boule. PLoS One 2015; 10:e0128250. [PMID: 26030766 PMCID: PMC4451259 DOI: 10.1371/journal.pone.0128250] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Accepted: 04/23/2015] [Indexed: 12/24/2022] Open
Abstract
Non-primate mammals have two deleted azoospermia (DAZ) family genes, DAZL and Boule; genes in this family encode RNA-binding proteins essential for male fertility in diverse animals. Testicular DAZL transcription is regulated by epigenetic factors such as DNA methylation. However, nothing is known about the epigenetic regulation of Boule. Here, we explored the role of DNA methylation in the regulation of the bovine Boule (bBoule) gene. We found that a long CpG island (CGI) in the bBoule promoter was hypermethylated in the testes of cattle-yak hybrids with low bBoule expression, whereas cattle had relatively low methylation levels (P < 0.01), and there was no difference in the methylation level in the short CGI of the gene body between cattle and cattle-yak hybrids (P > 0.05). We identified a 107 bp proximal core promoter region of bBoule. Intriguingly, the differences in the methylation level between cattle and cattle-yak hybrids were larger in the core promoter than outside the core promoter. An in vitro methylation assay showed that the core promoter activity of bBoule decreased significantly after M.SssI methylase treatment (P < 0.01). We also observed dramatically increased bBoule transcription in bovine mammary epithelial cells (BMECs) after treatment with the methyltransferase inhibitor 5-Aza-dC. Taken together, our results establish that methylation status of the core promoter might be involved in testicular bBoule transcription, and may provide new insight into the epigenetic regulation of DAZ family genes and clinical insights regarding male infertility.
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Affiliation(s)
- Wang Yao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Yinxia Li
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Bojiang Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Hua Luo
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Hongtao Xu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Zengxiang Pan
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhuang Xie
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Qifa Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
- * E-mail:
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Kolarova J, Tangen I, Bens S, Gillessen-Kaesbach G, Gutwein J, Kautza M, Rydzanicz M, Stephani U, Siebert R, Ammerpohl O, Caliebe A. Array-based DNA methylation analysis in individuals with developmental delay/intellectual disability and normal molecular karyotype. Eur J Med Genet 2015; 58:419-25. [PMID: 26003415 DOI: 10.1016/j.ejmg.2015.05.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Accepted: 05/04/2015] [Indexed: 10/23/2022]
Abstract
Despite recent progress in molecular karyotyping and clinical sequencing the cause of intellectual disability in a considerable subset of individuals affected by this phenotype remains elusive. As intellectual disability is also a feature of various imprinting disorders and some monogenic forms of intellectual disability are caused by epigenetic modifiers we hypothesized that changes in DNA methylation might be associated with or even causative in some cases of intellectual disability. Therefore, we performed a DNA methylation analysis of peripheral blood samples from 82 patients with intellectual disability and additional features using the HumanMethylation450 BeadChip. The findings were compared to that of 19 normal controls. Differentially methylated loci were validated by bisulfite pyrosequencing. On a global level, we failed to detect a robust DNA methylation signature segregating individuals with intellectual disability from controls. Using an individual approach, we identified 157 regions showing individual DNA methylation changes in at least one patient. These correlated to 107 genes including genes linked to conditions associated with intellectual disability, namely COLEC11, SHANK2, GLI2 and KCNQ2, as well as imprinted genes like FAM50B and MEG3. The latter was suggestive of an undiagnosed Temple syndrome which could be confirmed by diagnostic tests. Subsequent in-depth analysis of imprinted loci revealed DNA methylation changes at additional imprinted loci, i.e. PPIEL, IGF2R, MEG8 and MCTS2/HM13, in up to five patients. Our findings indicate that imprinting disorders are rare but probably under-diagnosed in patients with intellectual disability and moreover point to DNA methylation changes as potential alternative means to identify deregulated genes involved in the pathogenesis of intellectual disability.
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Affiliation(s)
- Julia Kolarova
- Institute of Human Genetics, Christian-Albrechts-University Kiel & University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Imke Tangen
- Institute of Human Genetics, Christian-Albrechts-University Kiel & University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Susanne Bens
- Institute of Human Genetics, Christian-Albrechts-University Kiel & University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | | | - Jana Gutwein
- Institute of Human Genetics, Christian-Albrechts-University Kiel & University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Monika Kautza
- Institute of Human Genetics, Christian-Albrechts-University Kiel & University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Malgorzata Rydzanicz
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszyńska 32 St, 60-479 Poznań, Poland
| | - Ulrich Stephani
- Department of Neuropediatrics, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Reiner Siebert
- Institute of Human Genetics, Christian-Albrechts-University Kiel & University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Ole Ammerpohl
- Institute of Human Genetics, Christian-Albrechts-University Kiel & University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Almuth Caliebe
- Institute of Human Genetics, Christian-Albrechts-University Kiel & University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany.
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Taleat Z, Mathwig K, Sudhölter EJ, Rassaei L. Detection strategies for methylated and hypermethylated DNA. Trends Analyt Chem 2015. [DOI: 10.1016/j.trac.2014.11.013] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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30
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Gou LT, Dai P, Liu MF. Small noncoding RNAs and male infertility. WILEY INTERDISCIPLINARY REVIEWS-RNA 2014; 5:733-45. [PMID: 25044449 DOI: 10.1002/wrna.1252] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 05/29/2014] [Accepted: 06/03/2014] [Indexed: 11/07/2022]
Abstract
Small noncoding RNAs (ncRNAs) are a novel class of gene regulators that modulate gene expression at transcriptional, post-transcriptional, and epigenetic levels, and they play crucial roles in almost all cellular processes in eukaryotes. Recent studies have indicated that several types of small noncoding RNAs, including microRNAs (miRNAs), endo-small interference RNAs (endo-siRNAs), and Piwi-interacting RNAs (piRNAs), are expressed in the male germline and are required for spermatogenesis in animals. In this review, we summarize the recent knowledge of these small noncoding RNAs in male germ cells and their biological functions and mechanisms of action in animal spermatogenesis.
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Affiliation(s)
- Lan-Tao Gou
- Center for RNA Research, State Key Laboratory of Molecular Biology-University of Chinese Academy of Sciences, Shanghai, China; Shanghai Key Laboratory of Molecular Andrology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
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