Hypomethylation of the DAZ3 promoter in idiopathic asthenospermia: a screening tool for liquid biopsy

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 blo...

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Veröffentlicht in:Scientific reports 2020-10, Vol.10 (1), p.17996-17996, Article 17996
Hauptverfasser: Zhang, Shichang, Xu, Li, Yu, Mengyao, Zhang, Jiexin
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Zhang, Jiexin
description 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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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. 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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. 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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. 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subjects 631/208/721
692/699/2732
Adult
Asthenozoospermia - diagnosis
Asthenozoospermia - genetics
Biopsy
Blood
Cohort Studies
CpG islands
DNA - analysis
DNA - chemistry
DNA - genetics
DNA Methylation
Epigenesis, Genetic
Humanities and Social Sciences
Humans
Infertility
Leukocytes
Liquid Biopsy - methods
Male
Males
Methylation
multidisciplinary
Polymerase chain reaction
Promoter Regions, Genetic
Real-Time Polymerase Chain Reaction
Science
Science (multidisciplinary)
title Hypomethylation of the DAZ3 promoter in idiopathic asthenospermia: a screening tool for liquid biopsy
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