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Prenatal and ancestral exposure to di(2-ethylhexyl) phthalate alters gene expression and DNA methylation in mouse ovaries.

ABSTRACT: Prenatal and ancestral exposure to di(2-ethylhexyl) phthalate alters gene expression and DNA methylation in mouse ovaries.

PROVIDER: PRJNA664697 | ENA |

REPOSITORIES: ENA

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Prenatal and ancestral exposure to di(2-ethylhexyl) phthalate alters gene expression and DNA methylation in mouse ovaries.

Project description:Di(2-ethylhexyl) phthalate (DEHP) is a commonly used plasticizer and known endocrine disrupting chemical, which causes transgenerational reproductive toxicity in female rodents. However, the mechanisms of action underlying the transgenerational toxicity of DEHP are not understood. Therefore, this study determined the effects of prenatal and ancestral DEHP exposure on various ovarian pathways in the F1, F2, and F3 generations of mice. Pregnant CD-1 dams were orally exposed to corn oil (vehicle control) or DEHP (20 μg/kg/day-750 mg/kg/day) from gestation day 10.5 until birth. At postnatal day 21 for all generations, ovaries were removed for gene expression analysis of various ovarian pathways and for 5-methyl cytosine (5-mC) quantification. In the F1 generation, prenatal DEHP exposure disrupted the expression of cell cycle regulators, the expression of peroxisome-proliferator activating receptors, and the percentage of 5-mC compared to control. In the F2 generation, exposure to DEHP decreased the expression of steroidogenic enzymes, apoptosis factors, and ten-eleven translocation compared to controls. It also dysregulated the expression of phosphoinositide 3-kinase (PI3K) factors. In the F3 generation, ancestral DEHP exposure decreased the expression of steroidogenic enzymes, PI3K factors, cell cycle regulators, apoptosis factors, Esr2, DNA methylation mediators, and the percentage of 5-mC compared to controls. Overall, the data show that prenatal and ancestral DEHP exposure greatly suppress gene expression of pathways required for folliculogenesis and steroidogenesis in the ovary in a transgenerational manner and that gene expression may be influenced by DNA methylation. These results provide insight into some of the mechanisms of DEHP-mediated toxicity in the ovary across generations.

2020-09-22 | GSE158266 | GEO

Green tea polyphenols alleviate liver injury induced by di(2-ethylhexyl) phthalate in mice

Project description:Di (2-ethylhexyl) phthalate (DEHP) is a common plasticizer. Studies have revealed that DEHP exposure can cause liver damage. Green tea is one of the most popular beverages in China. Green tea polyphenols (GTPs) have been proven to have therapeutic effects on organ damage induced by heavy metal exposure. However, few study report on GTP relieving DEHP-induced liver damage.

2023-10-03 | GSE232128 | GEO

The effects of Korean Red Ginseng on Di-(2-ethylhexyl) phthalate-induced inflammatory response in endometrial cancer cells

Project description:Di-(2-ethylhexyl) phthalate (DEHP) is the most common endocrine disrupting chemical used as a plasticizer. DEHP is associated with the development of endometrium-related diseases through the induction of inflammation. The major therapeutic approaches against endometrial cancer and endometriosis involve the suppression of inflammatory response. Korean red ginseng (KRG) is a natural product with anti-inflammatory and anti-carcinogenic effects. Thus, the purpose of this study is to investigate the effects of KRG on DEHP-induced inflammatory response in endometrial cancer Ishikawa cells.

2022-07-13 | GSE154388 | GEO

Prenatal and ancestral exposure to di(2-ethylhexyl) phthalate alters gene expression and DNA methylation in mouse ovaries.

Project description: Not available

| S-EPMC6708485 | biostudies-literature

Expression data from HeLa cell treated with Bisphenol S and Mono-ethylhexyl phthalate

Project description:Bisphenol S and mono-ethylhexyl phthalate are widely used in the industry of making plastic, mailing envelopes, tickets, etc. Humans are exposed to these compounds by skin contact, inhalation, and food ingestions. However, the molecular mechanisms of these compounds' adverse effects are still unclear. We address the molecular and cellular mechanisms underlying Bisphenol S and mono-ethylhexyl phthalate effects on HeLa cells. Here microarray analysis was performed to identify distinct classes of up- or down-regulated genes and their connections to the different metabolic pathways.

2020-05-27 | GSE147533 | GEO

Toxicogenomic Screen of Replacements for bis(2-ethylhexyl) phthalate (DEHP) Using the Immortalized TM4 Sertoli Cell Line

Project description:Phthalate plasticizers are being phased out of consumer products because of their endocrine disrupting properties. This has resulted in a need to find safe alternatives that can plasticize polyvinyl chloride (PVC) while being inexpensive and biodegradable. We aim to study the toxicogenomic profile of mono-(2-ethylhexyl) phthalate (MEHP, the active metabolite of bis(2-ethylhexyl) phthalate, DEHP), the commercial plasticizer 1,2-cyclohexane dicarboxylic acid diisononyl ester (DINCH), and three plasticizers in development (1,4 butanediol dibenzoate (BDB), dioctyl succinate (DOS), and dioctyl maleate (DOM)) using the immortalized TM4 Sertoli cell line.

2015-08-06 | GSE66812 | GEO

Transcriptomic alterations induced by physiologically relevant level of mono(2-ethylhexyl) phthalate (MEHP) in oocytes and blastocysts

Project description:Mono(2-ethylhexyl) phthalate (MEHP), the main di(2-ethylhexyl) phthalate (DEHP) metabolite, is a known reproductive toxicant. Residual levels of 20 nM MEHP have been found in follicular fluid aspirated from IVF-treated women and DEHP-treated animals. It is not yet clear whether these residual MEHP levels have any effect on the follicle-enclosed oocyte or developing embryo. To clarify this point, bovine oocytes were matured with or without 20 nM MEHP for 22 h. Microarray analysis was performed for both mature oocytes and 7-day blastocysts. A feasibility examination was performed on mature oocytes (n = 200/group) to reveal a possible direct effect on the oocyte proteomic profile. Transcriptome analysis revealed MEHP-induced alterations in the expression of 456 and 290 genes in oocytes and blastocysts, respectively. The differentially expressed genes are known to be involved in various biological pathways, such as transcription process, cytoskeleton regulation and metabolic pathway. Among these, the expression of 9 genes was impaired in both oocytes exposed to MEHP (i.e., direct effect) and blastocysts developed from those oocytes (i.e., carryover effect). In addition, 191 proteins were found to be affected by MEHP in mature oocytes. The study explores, for the first time, the risk associated with exposing oocytes to physiologically relevant MEHP concentrations to the maternal transcripts. Although it was the oocytes that were exposed to MEHP, alterations carried over to the blastocyst stage, following embryonic genome activation, implying that these embryos are of low quality.

2019-05-09 | PXD012092 | Pride

Toxicogenomic Screen of Replacements for bis(2-ethylhexyl) phthalate (DEHP) Using the Immortalized TM4 Sertoli Cell Line

2015-08-06 | E-GEOD-66812 | biostudies-arrayexpress

Transcriptomic effects of mono-(2-ethylhexyl) phthalate and all-trans retinoic acid in the cultured mouse fetal testes

Project description:We report the results of an RNA-seq analysis conducted as part of an experiment investigating the effects of the phthalate, mono-(2-ethylhexyl) phthalate (MEHP), and all-trans retinoic acid (ATRA) on cultured fetal mouse testes. The goal of the study was to determine whether fetal testis toxicity of MEHP is partially driven by disruption of retinoic acid signaling.

2022-02-05 | GSE195969 | GEO

SYSTEMS ANALYSIS OF THE LIVER TRANSCRIPTOME IN ADULT MALE ZEBRAFISH EXPOSED TO THE PLASTICIZER (2-ETHYLHEXYL) PHTHALATE (DEHP).

Project description:We report the effects of exposure to the endocrine disurptor (2-ethylhexyl) phthalate (DEHP) on transcriptome modification in the livers of in vivo Zebrafish. Our data indicate changes in fatty acid metabolism and insulin resistance, pathways associated with the development of Non-Alcoholic Fatty Liver Disease (NAFLD).

2018-02-13 | GSE100367 | GEO

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