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Effects on adult testis of Sertoli cell-specific ablation of miR-17-92 in mouse embryos

ABSTRACT: Effects on adult testis of Sertoli cell-specific ablation of miR-17-92 in mouse embryos

PROVIDER: PRJEB21967 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	ERR2045080_1.fastq.gz	Fastqsanger.gz
	ERR2045080_2.fastq.gz	Fastqsanger.gz
	ERR2045081_1.fastq.gz	Fastqsanger.gz
	ERR2045081_2.fastq.gz	Fastqsanger.gz
	ERR2045082_1.fastq.gz	Fastqsanger.gz

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Effects on adult testis of Sertoli cell-specific ablation of miR-17-92 in mouse embryos

Project description:We induced specific deletion of miR-17-92 in Sertoli cells at the time of Amh expression in mouse embryos. We analyzed the effect of this deletion in the long term in adult testis. The transcriptome of mutant testis was consistently altered but do not produce a phenotype due to the testis homeostasis.

2018-05-10 | E-MTAB-5914 | biostudies-arrayexpress

Complete male-to-female sex reversal in mice lacking the miR-17~92 cluster [scRNA-seq]

Project description:The deletion of a single miRNA cluster, miR-17~92, is sufficient to induce primary sex reversal in XY mice. The expression of the testis determining gene, Sry, is delayed in embryonic XY miR-17~92 knockout gonads, which immediately activate the ovarian genetic program. Single cell RNA-seq analysis shows that Sertoli cell differentiation is highly reduced, delayed and unable to trigger testis differentiation. Consistent with the well-known role of miRNAs in gene regulation, the expression of target genes of miR-17~92 is not stabilized in XY mutant gonads at E11.5, affecting, in turn, the fine regulation of large gene networks involved in mammalian sex determination. Our results reveal that the miR-17~92 cluster is a novel sex-determining factor that modulates several gene networks required for accurate timing of Sry expression and Sertoli cell differentiation during testis determination and early differentiation.

2023-07-09 | GSE225676 | GEO

Complete male-to-female sex reversal in mice lacking the miR-17~92 cluster [RNA-seq]

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Testis-to-ovary reprogramming and testis regression after ablation of Sox9 in Sox8-/- mice

Project description:We used two Sertoli-cell-specific Cre lines: Wt1-CreERT2 and Sox9-CreERT2, to induce Sox9 ablation on a Sox8 -/- background in the adult testis. Sox9/8 double KO testes undergo testis-to-ovary genetic reprogramming and Sertoli-to-granulosa cell transdifferentiation.

2016-06-08 | E-MTAB-4572 | biostudies-arrayexpress

Oncogenic biogenesis of pri-miR-17~92

Project description:The microRNAs encoded by the miR-17~92 polycistron are commonly overexpressed in cancer and orchestrate a wide range of oncogenic functions. Here, we identify a novel mechanism for miR-17~92 oncogenic function through the disruption of endogenous miRNA processing. We show that upon oncogenic overexpression of the miR-17~92 primary transcript (pri-miR-17~92), the Microprocessor complex remains associated with partially processed intermediates that aberrantly accumulate. These intermediates reflect a series of hierarchical and conserved steps in the early processing of the pri-miR-17~92 transcript. Encumbrance of the Microprocessor by miR-17~92 intermediates leads to the broad, but selective, downregulation of co-expressed polycistronic miRNAs, including miRNAs derived from tumour suppressive miR-34b/c, and from the Dlk1-Dio3 polycistrons. We propose that the newly identified steps of polycistronic miR-17~92 biogenesis contribute to the oncogenic re-wiring of gene regulation networks. Our results reveal new functional paradigms for polycistronic miRNAs in cancer.

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Transcription profiling of testis from wild type mice and mice with a Sertoli-specific ablation of Dicer

Project description:Assess the transcriptomic effects of Sertoli-specific ablation of Dicer in mice

2009-01-06 | E-TABM-426 | biostudies-arrayexpress

Analysis of mir-17~92 targets in motor neurons

Project description:To identify mir-17~92 targets in MNs, a set of target candidate genes from the intersection of upregulated genes found only in the mir-17~92 KO MNs that were predicted to be direct targets of mir-17~92 by TargetScan.

2015-04-14 | GSE67795 | GEO

Sertoli cell-specific ablation of miR-17-92 cluster significantly alters whole testis transcriptome without apparent phenotypic effects.

Project description:MicroRNAs are frequently organized into polycistronic clusters whose transcription is controlled by a single promoter. The miR-17-92 cluster is expressed in most embryonic and postnatal organs. It is a potent oncogene associated to several types of cancer and it is involved in several important developmental processes. In the testis, expression of the miR-17-92 cluster in the germ cells is necessary to maintain normal spermatogenesis. This cluster is also expressed in Sertoli cells (the somatic cells of the seminiferous tubules), which require miRNAs for correct cell development and survival. To study the possible role of miR-17-92 in Sertoli cell development and function and, in order to overcome the postnatal lethality of miR-17-92-/ mice, we conditionally deleted it in embryonic Sertoli cells shortly after the sex determination stage using an Amh-Cre allele. Mutant mice developed apparently normal testes and were fertile, but their testis transcriptomes contained hundreds of moderately deregulated genes, indicating that testis homeostasis is tightly controlled in mammals and that miR-17-92 expression in Sertoli cells contribute to maintain normal gene expression levels, but is unnecessary for testis development and function. Our results show that significant deregulation of hundreds of genes might have no functional consequences.

| S-EPMC5967698 | biostudies-literature

The role of microRNA miR-17-92 in MYC oncogene addiction

Project description:miR-17-92 mediates the MYC oncogene addiction in a conditional mouse lymphoma model. To identify targets of miR-17-92 in this model, miR-17-92 was expressed in the conditional lymphoma cell lines using MSCV-puro.

2014-05-29 | GSE57507 | GEO

Ribosome Profiling analysis of Follicular B (FoB) cells purified from WT, miR-17~92 transgenic and miR-17-92 tKO mice

Project description:We have generated a miR-17~92 transgene and fl/fl allele whose expression can be turned on and off conditionally by Cre recombinase. The mice were crossed to CD19-Cre mice to turn on and off the expression of miR-17~92 specifically in B cells and stimulated LPS/IL-4 for 25.5hr. tKO mice were generated in the miR-106a-363-/-;miR-106b-25-/- background, so that all three homologous cluster of miR-17~92 family miRNAs are deleted in B cells.

2017-03-08 | GSE83684 | GEO

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