Project description:The pituitary gland exhibits sex differences in its function. Diseases associated with dysregulation of the pituitary are also sex-biased in prevalence. Previous qPCR profiling of puberty-related genes in the pituitary gland revealed increasingly sex-biased expression of genes profiled across pubertal transition. Here, we performed small RNA-seq on total RNA extracted from C57BL/6J mouse pituitary gland of both sexes mice at 4 ages spanning pubertal transition (postnatal days 12, 22, 27, 32) (6 replicates per sex at each age) to examine microRNA (miRNA) regulation of sex differences in gene expression observed. Total RNA was sent to SickKids TCAG core to construct small RNA-seq libraries using NEBNext Small RNA Library Prep Kit according to manufacterer’s protocol. Resulting single-end libraries were sequenced at TCAG core on the Illumina HiSeq 2500 v4 flow cell with SR50 bp. Data obtained was processed using miRDeep2 pipeline to align small RNA-seq reads to the mouse genome (mm10) and to filter for miRNAs.
Project description:The pituitary gland exhibits sex differences in its function. Diseases associated with dysregulation of the pituitary are also sex-biased in prevalence. Previous qPCR profiling of puberty-related genes in the pituitary gland revealed increasingly sex-biased expression of genes profiled across pubertal transition. Here, we performed 3’-UTR-seq on pituitary gland from both sexes of C57BL/6J mice at 5 ages spanning pubertal transition (postnatal days 12, 22, 27, 32, 37) (6 replicates per sex at each age) to examine genome-wide sex-biased trends in gene expression and potential regulatory mechanisms of these sex differences. QuantSeq 3’mRNA-seq libraries were constructed from total RNA using an automated method with Agilent NGS Workstation. Resulting single-end libraries were sequenced at SickKids TCAG core on the Illumina v4 flow cell with SR50 bp cycles extended to 68 bp. A customized pipeline was developed and used for analysis of reads obtained (see paper for details). Processed reads were mapped to mouse genome (mm10).
Project description:Herein we identified 301 (176 up- and 125 downregulated) differentially abundant proteins (DAPs) in the ovaries of pubertal and prepubertal Anhui white goats (P < 0.05) using quantitative proteomics techniques based on LC–MS/MS and iTRAQ. Gene ontology functional enrichment analysis revealed that several DAPs enriched in biological processes were related to cellular process, biological regulation, metabolic process, and response to stimulus. Further, Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis indicated that DAPs were enriched in olfactory translation, glutathione metabolism, and calcium signaling pathways.
Project description:There is a lack of systematic investigations of large-scale transcriptome patterns associated with normal breast development. Herein, we profiled whole-transcriptome (by microarrays) of normal mammary glands in female Sprague-Dawley rats, an animal model widely used in breast cancer research, across six distinctive developmental stages – pre-pubertal, peri-pubertal, pubertal, lactation, and adult parous and age-matched nulliparous.
Project description:The hypothalamus is a functionally and cellularly complex tissue controlling many developmental processes, including puberty. While key hormonal aspects of puberty regulation in the hypothalamus are well established, understanding the genes, cell-types, and epigenetic mechanisms underlying and regulating puberty is limited. Here, we performed 3’-UTR-seq on the hypothalamus from both sexes of C57BL/6J mice at 5 ages spanning pubertal transition (postnatal days 12, 22, 27, 32, 37) (4-5 replicates per sex at each age) to examine genome-wide age- and sex-biased trends in gene expression in a cell-type aware manner. Sample collection, RNA extraction, and sequencing was completed using the same protocols and on the same mice as PMID: 3622112 (E-MTAB-9459). QuantSeq 3’mRNA-seq libraries were constructed from total RNA using an automated method with Agilent NGS Workstation. The resulting single-end libraries were sequenced at SickKids TCAG core on the Illumina v4 flow cell with SR50 bp cycles extended to 68 bp. A customized pipeline was developed and used for the analysis of reads obtained (PMID: 36221127 for details). Processed reads were mapped to mouse genome (mm10).