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Zearalenone-induced aberration in gut microbiome composition and function are associated with degeneration in ovary reserve

ABSTRACT: We applied metagenomic shotgun sequencing to investigate the effects of ZEA exposure on the change of mouse gut microbiota composition and function.

ORGANISM(S): Mus musculus

PROVIDER: GSE140149 | GEO | 2019/11/09

REPOSITORIES: GEO

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Zearalenone-induced aberration in gut microbiome composition and function are associated with degeneration in ovary reserve

Project description:Zearalenone-induced aberration in gut microbiome composition and function are associated with degeneration in ovary reserve

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Altered fecal small RNA profiles in colorectal cancer reflect gut microbiome composition in stool samples

Project description:Dysbiotic configurations of the human gut microbiota have been linked with colorectal cancer (CRC). Human small non-coding RNAs are also implicated in CRC and recent findings suggest that their release in the gut lumen contributes to shape the gut microbiota. Bacterial small RNAs (bsRNAs) may also play a role in carcinogenesis but their role is less explored. Here, we performed small RNA and shotgun sequencing on 80 stool specimens of patients with CRC, or adenomas, and healthy subjects collected in a cross-sectional study to evaluate their combined use as a predictive tool for disease detection. We reported a considerable overlap and correlation between metagenomic and bsRNA quantitative taxonomic profiles obtained from the two approaches. Furthermore, we identified a combined predictive signature composed by 32 features from human and microbial small RNAs and DNA-based microbiome able to accurately classify CRC from healthy and adenoma samples (AUC= 0.87). In summary we reported evidence that host-microbiome dysbiosis in CRC can be observed also by altered small RNA stool profiles. Integrated analyses of the microbiome and small RNAs in the human stool may provide insights for designing more accurate tools for diagnostic purposes.

2019-08-30 | GSE132236 | GEO

Mouse placental microRNA profiling upon zearalenone exposure

Project description:Mycoestrogens are derived from mold and can interfere with female reproduction. Mycoestrogen zearalenone (ZEA) is a common food contaminant in levels of ppb ~ low ppm. Previously we demonstrated disrupted mouse placental development by 40 ppm ZEA diet. MicroRNAs are sensitive to xenobiotics and have been implicated in placental physiology and pathology. We hypothesized that ZEA could dysregulate microRNA expression in the mouse placenta. Gestation day 13.5 (D13.5) placentas from young mice treated with 0 ppm (control), 4 ppm, and 40 ppm ZEA diets were analyzed for microRNA profiling using microRNA array. The top 20 most highly expressed microRNAs in the D13.5 control placentas are predicated to target genes involved in important signaling pathways that are critical for maternal-fetal communications, such as protein processing in endoplasmic reticulum, endocytosis, and regulation of actin cytoskeleton. Using criteria of Log2FC ≥ 1 and Log2FC ≤ -1 (linear 2 fold change (FC)), a false discovery rate adjusted p-value ≤ 0.05, and average reading > 100 (top 20% most abundant microRNAs), R package limma identified 8 differentially expressed miRNAs (mmu-miR-133b-5p, mmu-miR-7028-5p, mmu-miR-294-3p, mmu-miR-3970, mmu-miR-20b-5p, mmu-miR-7683-3p, mmu-miR-291b-3p, mmu-miR-369-3p) in the 40 ppm ZEA group that included all 4 differentially expressed miRNAs in the 4 ppm ZEA group. Some of these differentially expressed microRNAs have been shown in vitro to have important functions in placental growth and maternal-fetal transport. These data imply roles of placental microRNAs in regulating expression of genes critical for placental function in vivo and in sensing environmental contaminants.

2019-09-11 | GSE137242 | GEO

HOME-BIO (sHOtgun MEtagenomic analysis of BIOlogical entities): from reads to pathogens. A specific and exhaustive pipeline for handling metagenomic shotgun sequencing data.

Project description:Next-Generation-Sequencing (NGS) technologies have led to important improvement in the detection of new or unrecognized infective agents, related to infectious diseases. In this context, NGS high-throughput technology can be used to achieve a comprehensive and unbiased sequencing of the nucleic acids present in a clinical sample (i.e. tissues). Metagenomic shotgun sequencing has emerged as powerful high-throughput approaches to analyze and survey microbial composition in the field of infectious diseases. By directly sequencing millions of nucleic acid molecules in a sample and matching the sequences to those available in databases, pathogens of an infectious disease can be inferred. Despite the large amount of metagenomic shotgun data produced, there is a lack of a comprehensive and easy-use pipeline for data analysis that avoid annoying and complicated bioinformatics steps. Here we present HOME-BIO, a modular and exhaustive pipeline for analysis of biological entity estimation, specific designed for shotgun sequenced clinical samples. HOME-BIO analysis provides comprehensive taxonomy classification by querying different source database and carry out main steps in metagenomic investigation. HOME-BIO is a powerful tool in the hand of biologist without computational experience, which are focused on metagenomic analysis. Its easy-to-use intrinsic characteristic allows users to simply import raw sequenced reads file and obtain taxonomy profile of their samples.

2021-07-26 | E-MTAB-9189 | biostudies-arrayexpress

HOME-BIO (sHOtgun MEtagenomic analysis of BIOlogical entities): from reads to pathogens. A specific and exhaustive pipeline for handling metagenomic shotgun sequencing data.

2021-07-26 | E-MTAB-9191 | biostudies-arrayexpress

Assessment of zearalenone-induced cell survival and global gene regulation in mouse TM4 Sertoli cells

Project description:Zearalenone (ZEA) is a non-steroidal xenoestrogen mycotoxin produced by many Fusarium fungal species, which are common contaminants of cereal crops destined for worldwide human and animal consumption. ZEA has been linked to various male reproduction problems including decreased fertility potential. In this study, the direct impact of ZEA on the immature Sertoli TM4 cell line was evaluated. Results showed that high concentration of ZEA increase reactive oxygen species via the activation of MAPK signaling. Transcriptome analysis was performed on TM4 cell line treated with ZEA and genes involved in sex differentiation (Fgfr2, Igf1, Notch1, Sox9) and extracellular matrix (ECM) formation (Ctgf, Fam20a, Fbn1, Mmp9, Postn, Sparcl1, Spp1) were identified at the center of the functional protein association network suggesting that ZEA could be detrimental to the early steps of Sertoli cell differentiation.

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Zearalenone exposure enhanced the expression of tumorigenesis genes in donkey granulosa cells via the PTEN/PI3K/AKT signaling pathway

Project description:We investigated the biological effects of ZEA exposure on donkey granulosa cells by using RNA-seq analysis. ZEA at 10 and 30 μM were administered to granulosa cells within 72 hours of in vitro culture. ZEA at 10 μM significantly altered the tumorigenesis associated genes in donkey granulosa cells. Exposure to 10 and 30 μM ZEA treatment significantly reduced mRNA expression of PTEN, TGFβ, ATM, and CDK2 genes, particularly, the ZEA treatment significantly increased the expression of PI3K and AKT genes. Furthermore, immunofluorescence, RT-qPCR, and Western blot analysis verified the gene expression of ZEA-exposed granulosa cells. Collectively, these results demonstrated the deleterious effect of ZEA exposure on the induction of ovarian cancer related genes via the PTEN/PI3K/AKT signaling pathway in donkey granulosa cells in vitro.

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Expression profiling of the genes responding to zearalenone and its analogues using estrogen-responsive genes.

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2010-09-09 | E-GEOD-15249 | biostudies-arrayexpress

Comparative analysis of transcriptomic changes induced by zearalenone and bisphenol A in human ovarian cancer cells [mRNA_seq]

Project description:In this study we compared the global transcriptomic response of human ovarian cells to zeralenone (ZEA; mycotoxin) and bisphenol A (BPA; plastic additive) with the effect of physiological estradiol (E2). For this purpose we applied the PEO1 human ovarian cell line that was treated with 10 nM ZEA, 100 nM BPA and 10 nM E2. Transcriptomic profile was compared by mRNA sequencing (Illumina NextSeq 500).

2023-03-02 | GSE224105 | GEO

Comparative analysis of transcriptomic changes induced by zearalenone and bisphenol A in human ovarian cancer cells [microRNA_seq]

Project description:In this study we compared the effect of zeralenone (ZEA; mycotoxin) and bisphenol A (BPA; plastic additive) to the global microRNA expression of human ovarian cells with the effect of physiological estradiol (E2). For this purpose we applied the PEO1 human ovarian cell line that was treated with 10 nM ZEA, 100 nM BPA and 10 nM E2. MicroRNA expression was compared by microRNA sequencing (Illumina NextSeq 500).

2023-03-02 | GSE224107 | GEO

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