Sex chromsomes affect gene expression of healthy CD4+ T cells in B6 gonadal males
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ABSTRACT:
PROVIDER: PRJNA578120 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR10302087.fastq.gz | Fastqsanger.gz | |||
| SRR10302088.fastq.gz | Fastqsanger.gz | |||
| SRR10302089.fastq.gz | Fastqsanger.gz | |||
| SRR10302090.fastq.gz | Fastqsanger.gz | |||
| SRR10302091.fastq.gz | Fastqsanger.gz |
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Project description:Sex chromosomes affect gene expression of autoantigen specific CD4+ T cells in B6 gonadal males.
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Project description:To determine the role of sex chromsomes in sex differences of autoimmune disease, we used high throughput RNA sequencing to analyze the transciptomes of CD4+ T cells stimuated with antiCD3/CD28 from XXSry and XY-Sry mice using the “four core genotypes” mouse model. We found higher expression of several X genes in the XY- genotype compared to XX, suggesting a difference in DNA methylation of these genes between Xp and Xm. In a hypothesis driven targeted approach, we investigated two immunomodulatory X genes, Tlr7 and FoxP3 and found that the promoter regions of both genes had more DNA methylation on the Xp than Xm, and that both genes had higher expression in autoantigen stimulated CD4+ T cells from XY- compared to XX mice. This study provides new insights regarding how sex chromsomes affect gene expression and cause sex differences in autoimmune disease.
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Project description:To determine the role of sex chromsomes in sex differences of autoimmune disease, we used high throughput RNA sequencing to analyze the transciptomes of autoantigen specific CD4+ T cells from XX and XY- mice using the “four core genotypes” mouse model. We found higher expression of several X genes in the XY- genotype compared to XX, suggesting a difference in DNA methylation of these genes between Xp and Xm. In a hypothesis driven targeted approach, we investigated two immunomodulatory X genes, Tlr7 and FoxP3 and found that the promoter regions of both genes had more DNA methylation on the Xp than Xm, and that both genes had higher expression in autoantigen stimulated CD4+ T cells from XY- compared to XX mice. This study provides new insights regarding how sex chromsomes affect gene expression and cause sex differences in autoimmune disease.
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Project description:To determine the role of sex chromsomes in sex differences of autoimmune disease, we used high throughput RNA sequencing to analyze the transciptomes of CD4+ T cells stimuated with antiCD3/CD28 from XX and XY- mice using the “four core genotypes” mouse model. We found higher expression of several X genes in the XY- genotype compared to XX, suggesting a difference in DNA methylation of these genes between Xp and Xm. In a hypothesis driven targeted approach, we investigated two immunomodulatory X genes, Tlr7 and FoxP3 and found that the promoter regions of both genes had more DNA methylation on the Xp than Xm, and that both genes had higher expression in autoantigen stimulated CD4+ T cells from XY- compared to XX mice. This study provides new insights regarding how sex chromsomes affect gene expression and cause sex differences in autoimmune disease.
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Project description:Transcriptional profiling of mouse whole liver comparing control WT B6 mice with B6 growth hormone-deficient little, B6 androgen receptor-null Tfm mice, and STAT5b KOs normalized to WT on B6 and BALB/c backgrounds. All animals were 10-week-old males initiated with DEN. Oberley et al. Molecular carcinogenesis 2014 May 17. doi: 10.1002/mc.22165.
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Project description:Transcriptional profiling of mouse whole liver comparing control WT B6 mice with B6 growth hormone-deficient little, B6 androgen receptor-null Tfm mice, and STAT5b KOs normalized to WT on B6 and BALB/c backgrounds. All animals were 10-week-old males initiated with DEN. Oberley et al. Molecular carcinogenesis 2014 May 17. doi: 10.1002/mc.22165. Three-condition experiment, WT vs. little and Tfm livers. Biological replicates: 3 control replicates, 3 mutant replicates. Little and Tfm normalized to WTa, B6 STAT5b KO
2014-08-09 | E-GEOD-60253 | biostudies-arrayexpress
Project description:Sex differences in the brain as they relate to health and disease are often overlooked in experimental models. Many neurological disorders, like Alzheimer’s disease (AD), multiple sclerosis (MS), and autism, differ in prevalence between males and females. Sex differences originate either from differential gene expression on sex chromosomes or from hormonal differences, either directly or indirectly. To disentangle the relative contributions of genetic sex (XX v. XY) and gonadal sex (ovaries v. testes) to the regulation of hippocampal sex effects, we use the “sex-reversal” Four Core Genotype (FCG) mouse model which uncouples sex chromosome complement from gonadal sex. Transcriptomic and epigenomic analyses of hippocampal RNA and DNA from ∼12 month old FCG mice, reveals differential regulatory effects of sex chromosome content and gonadal sex on X- versus autosome-encoded gene expression and DNA modification patterns. Gene expression and DNA methylation patterns on the X chromosome were driven primarily by sex chromosome content, not gonadal sex. The majority of DNA methylation changes involved hypermethylation in the XX genotypes (as compared to XY) in the CpG context, with the largest differences in CpG islands, promoters, and CTCF binding sites. Autosomal gene expression and DNA modifications demonstrated regulation by sex chromosome complement and gonadal sex. These data demonstrate the importance of sex chromosomes themselves, independent of hormonal status, in regulating hippocampal sex effects. Future studies will need to further interrogate specific CNS cell types, identify the mechanisms by which sex chromosome regulate autosomes, and differentiate organizational from activational hormonal effects.
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Project description:A critical transcription factor required for mammalian male sex determination is SRY (sex determining region on the Y chromosome). The expression of SRY in precursor Sertoli cells is one of the initial events in testis development. The current study was designed to determine the impact of environmentally induced epigenetic transgenerational inheritance on SRY during gonadal sex determination in the male. The agricultural fungicide vinclozolin and vehicle control (DMSO) exposed gestating females (F0 generation) during gonadal sex determination promoted the transgenerational inheritance of differential DNA methylation in sperm of the F3 generation (great grand-offspring). The fetal gonads in F3 generation males were used to identify potential alterations in SRY binding sites in the developing Sertoli cells. Chromatin immunoprecipitation with an SRY antibody followed by genome-wide promoter tiling array (ChIP-Chip) was used to identify alterations in SRY binding. A total of 81 adjacent oligonucleotide sites and 173 single oligo SRY binding sites were identified to be altered transgenerationally in the Sertoli cell vinclozolin lineage F3 generation males. Observations demonstrate the majority of the previously identified normal SRY binding sites were not altered and the altered SRY binding sites were novel and new additional sites. The chromosomal locations, gene associations and potentially modified cellular pathways were investigated. In summary, environmentally induces epigenetic transgenerational inheritance of germline epimutations appears to alter the cellular differentiation and development of the precursor Sertoli cell SRY binding during gonadal sex determination that influence the developmental origins of adult onset testis disease.
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Project description:Sex differences in the brain as they relate to health and disease are often overlooked in experimental models. Many neurological disorders, like Alzheimer’s disease (AD), multiple sclerosis (MS), and autism, differ in prevalence between males and females. Sex differences originate either from differential gene expression on sex chromosomes or from hormonal differences, either directly or indirectly. To disentangle the relative contributions of genetic sex (XX v. XY) and gonadal sex (ovaries v. testes) to the regulation of hippocampal sex effects, we use the “sex-reversal” Four Core Genotype (FCG) mouse model which uncouples sex chromosome complement from gonadal sex. Transcriptomic and epigenomic analyses of hippocampal RNA and DNA from ∼12 month old FCG mice, reveals differential regulatory effects of sex chromosome content and gonadal sex on X- versus autosome-encoded gene expression and DNA modification patterns. Gene expression and DNA methylation patterns on the X chromosome were driven primarily by sex chromosome content, not gonadal sex. The majority of DNA methylation changes involved hypermethylation in the XX genotypes (as compared to XY) in the CpG context, with the largest differences in CpG islands, promoters, and CTCF binding sites. Autosomal gene expression and DNA modifications demonstrated regulation by sex chromosome complement and gonadal sex. These data demonstrate the importance of sex chromosomes themselves, independent of hormonal status, in regulating hippocampal sex effects. Future studies will need to further interrogate specific CNS cell types, identify the mechanisms by which sex chromosome regulate autosomes, and differentiate organizational from activational hormonal effects.
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