Dataset Information

Assessment of microRNA expression in mouse epididymal epithelial cells and spermatozoa by next generation sequencing.

ABSTRACT: The mammalian epididymis is a highly specialized region of the male reproductive tract that is lined with a continuous layer of epithelial cells that display a remarkable level of regionalized secretory and absorptive activity. The luminal environment created by this combined secretory and absorptive activity is directly responsible for promoting the functional maturation of spermatozoa and their maintenance in a quiescent and viable state prior to ejaculation. This study was designed to identify the complement of microRNAs (miRNAs) that are expressed within the mouse epididymal epithelial cells and the maturing populations of spermatozoa. Through the use of Next Generation Sequencing technology we have demonstrated that both epididymal epithelial cells and spermatozoa harbour a complex repertoire of miRNAs that have substantially different expression profiles along the length of the tract. These data, deposited in the Gene Expression Omnibus (GEO) with the accession numbers GSE70197 and GSE70198, afford valuable insight into the post-transcriptional control of gene expression within the epididymis and provide the first evidence for the dynamic transformation of the miRNA content of maturing sperm cells. Ultimately such information promises to inform our understanding of the aetiology of male infertility. Herein we provide a detailed description of the methodology used to generate these important data.

SUBMITTER: Anderson AL

PROVIDER: S-EPMC4664737 | biostudies-literature | 2015 Dec

REPOSITORIES: biostudies-literature

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Assessment of microRNA expression in mouse epididymal epithelial cells and spermatozoa by next generation sequencing.

Anderson Amanda L AL Stanger Simone J SJ Mihalas Bettina P BP Tyagi Sonika S Holt Janet E JE McLaughlin Eileen A EA Nixon Brett B

Genomics data 20150918

The mammalian epididymis is a highly specialized region of the male reproductive tract that is lined with a continuous layer of epithelial cells that display a remarkable level of regionalized secretory and absorptive activity. The luminal environment created by this combined secretory and absorptive activity is directly responsible for promoting the functional maturation of spermatozoa and their maintenance in a quiescent and viable state prior to ejaculation. This study was designed to identif ...[more]

PMID: 26697376

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Project description:MicroRNAs (miRNAs) are considered to be involved in the pathogenic initiation and progression of chronic nonbacterial prostatitis (CNP); however, the comprehensive expression profile of dysregulated miRNAs, relevant signaling pathways, and core machineries in CNP have not been fully elucidated. In the current research, CNP rat models were established through the intraprostatic injection of carrageenan into the prostate. Then, next-generation sequencing was performed to explore the miRNA expression profile in CNP. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) bioinformatical analyses were conducted to reveal the enriched biological processes, molecular functions, and cellular components and signaling pathways. As a result, 1224, 1039, and 1029 known miRNAs were annotated in prostate tissues from the blank control (BC), normal saline injection (NS), and carrageenan injection (CAR) groups (n = 3 for each group), respectively. Among them, 84 miRNAs (CAR vs BC) and 70 miRNAs (CAR vs NS) with significantly different expression levels were identified. Compared with previously reported miRNAs with altered expression in various inflammatory diseases, the majority of deregulated miRNAs in CNP, such as miR-146b-5p, miR-155-5p, miR-150-5p, and miR-139-5p, showed similar expression patterns. Moreover, bioinformatics analyses have enriched mitogen-activated protein kinase (MAPK), cyclic adenosine monophosphate (cAMP), endocytosis, mammalian target of rapamycin (mTOR), and forkhead box O (FoxO) signaling pathways. These pathways were all involved in immune response, which indicates the critical regulatory role of the immune system in CNP initiation and progression. Our investigation has presented a global view of the differentially expressed miRNAs and potential regulatory networks containing their target genes, which may be helpful for identifying the novel mechanisms of miRNAs in immune regulation and effective target-specific theragnosis for CNP.

Dataset Information

Assessment of microRNA expression in mouse epididymal epithelial cells and spermatozoa by next generation sequencing.

Publications

Assessment of microRNA expression in mouse epididymal epithelial cells and spermatozoa by next generation sequencing.

Similar Datasets

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