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Ancestral Plastics Exposure Induces Transgenerational Disease Specific Sperm Epigenome-Wide Association Biomarkers Methylation Epimutation Biomarkers for Specific Transgenerational Disease

ABSTRACT: Ancestral Plastics Exposure Induces Transgenerational Disease Specific Sperm Epigenome-Wide Association Biomarkers Methylation Epimutation Biomarkers for Specific Transgenerational Disease

PROVIDER: PRJNA686064 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13267300_1.fastq.gz	Fastqsanger.gz
	SRR13267300_2.fastq.gz	Fastqsanger.gz
	SRR13267301_1.fastq.gz	Fastqsanger.gz
	SRR13267301_2.fastq.gz	Fastqsanger.gz
	SRR13267302_1.fastq.gz	Fastqsanger.gz

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Ancestral Plastics Exposure Induces Transgenerational Disease Specific Sperm Epigenome-Wide Association Biomarkers Methylation Epimutation Biomarkers for Specific Transgenerational Disease

Project description:Plastic derived compounds are one of the most frequent daily world-wide exposures. Previously a mixture of plastic derived toxicants involving bisphenol A (BPA), Bis(2-ethylhexyl) phthalate (DEHP), and dibutyl phthalate (DBP) at lower dose exposures of a gestating female rat were found to promote the epigenetic transgenerational inheritance of disease to the offspring (F1 generation), grand-offspring (F2 generation) and great-grand-offspring (F3 generation). Epigenetic analysis of the male sperm was found to result in differential DNA methylation regions (DMRs) in the transgenerational F3 generation male sperm. The current study is distinct and was designed to identify potential sperm DNA methylation biomarkers for specific transgenerational diseases. Observations show disease specific DMRs called epimutations in the transgenerational F3 generation great-grand-offspring rats ancestrally exposed to plastics. The epigenetic DMR biomarkers were identified for testis disease, kidney disease, and multiple (≥2) diseases. These disease sperm epimutation biomarkers were found to be predominantly disease specific. The genomic locations and features of these DMRs were identified. Interestingly, the disease specific DMR associated genes were previously shown to be linked with each of the specific diseases. Therefore, the germline has ancestrally derived epimutations that potentially transmit transgenerational disease susceptibilities. Epigenetic biomarkers for specific diseases could be used as diagnostics to facilitate clinical management of disease and preventative medicine.

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Transgenerational Disease Specific Epigenetic Sperm Biomarkers after Ancestral Exposure to Dioxin

Project description:Dioxin is one of the most common historic industrial contaminants with several major industry and government accidents having exposed large numbers of the worldwide population over the past century. Previous rat studies have demonstrated the ability of dioxin (2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD)) exposure to promote the epigenetic transgenerational inheritance of disease susceptibility in subsequent generations. The types of disease observed include testis, ovary, kidney, prostate and obesity pathologies. The current study was designed to use an epigenome-wide association study (EWAS) to identify potential sperm DNA methylation biomarkers for specific transgenerational diseases. The transgenerational F3 generation dioxin lineage male rats with and without a specific disease were compared to identify differential DNA methylation regions (DMRs). The genomic features of the DMRs are characterized. Observations demonstrate that disease specific epimutation DMRs exist for the transgenerational dioxin lineage rats that can potentially be used as epigenetic biomarkers for testis, ovary, kidney, prostate and obesity diseases. These disease specific DMRs were associated with genes that have previously been shown to be linked with these diseases. This EWAS for transgenerational disease identified epigenetic biomarkers and provides the proof of concept of the potential to develop similar biomarkers for humans to diagnose disease susceptibilities and facilitate preventative medicine.

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Project description:Atrazine is a common agricultural herbicide previously shown to promote epigenetic transgenerational inheritance of disease to subsequent generations. The current study was designed as an epigenome-wide association study (EWAS) to identify transgenerational sperm disease associated differential histone retention regions (DHRs). Gestating female F0 generation rats were transiently exposed to atrazine during the period of embryonic gonadal sex determination, and then subsequent F1, F2, and F3 generations obtained in the absence of any continued exposure. The transgenerational F3 generation males were assessed for disease and sperm collected for epigenetic analysis. Pathology was observed in late pubertal onset and for testis disease, prostate disease, kidney disease, lean pathology, and multiple disease. For these pathologies, sufficient numbers of individual males with only a single specific disease were identified. The sperm DNA and chromatin were isolated from adult one-year animals with the specific diseases and analyzed for DHRs with histone chromatin immunoprecipitation (ChIP) sequencing. Transgenerational F3 generation males with or without disease were compared to identify the disease specific epimutation biomarkers. No common DHRs were found among all the pathologies. Epimutation gene associations were identified and found to correlate to previously known disease linked genes.

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Epigenome-Wide Association Study for Pesticide (Permethrin and DEET) Induced DNA Methylation Epimutation Biomarkers for Specific Transgenerational Disease

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