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Constitutive expression of activated NOTCH1 in fetal Sertoli cells dysregulates factors required for proper gonocyte maintenance and survival.

ABSTRACT: Genome-wide analysis of whole embryonic day 14.5 mouse testes constitutively expressing the activated intracellular domain of NOTCH1 in Sertoli cells. The goal of the study was to identify Sertoli cell expressed genes regulated by Notch signaling, which are critical to gonocyte maintenance and survival. The mouse model was generated by intercrossing anti-Müllerian hormone (Amh)-cre transgenic mice and RosaNICD transgenic mice. Testes were dissected free from mesonephroi and testis pairs from a single fetus were pooled to generate a single sample. Littermates not expressing Amh-cre were used as controls. Testes from one control and one overexpressor fetus per dam from three separate dams were used for analysis.

ORGANISM(S): Mus musculus

SUBMITTER: Thomas Garcia

PROVIDER: E-GEOD-37073 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Constitutive expression of activated NOTCH1 in fetal Sertoli cells dysregulates factors required for proper gonocyte maintenance and survival.

Project description:Genome-wide analysis of whole embryonic day 14.5 mouse testes constitutively expressing the activated intracellular domain of NOTCH1 in Sertoli cells. The goal of the study was to identify Sertoli cell expressed genes regulated by Notch signaling, which are critical to gonocyte maintenance and survival. The mouse model was generated by intercrossing anti-Müllerian hormone (Amh)-cre transgenic mice and RosaNICD transgenic mice.

2013-02-08 | GSE37073 | GEO

Microarrays analysis of RNA isolated from 7days-Sertoli cell culture of 14 day-old AMH-Cre/WT and WT/WT C57BL/6J mouse testes

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2012-01-01 | E-GEOD-28307 | biostudies-arrayexpress

Microarrays analysis of RNA isolated from 7days-Sertoli cell culture of 14 day-old AMH-Cre/WT and WT/WT C57BL/6J mouse testes

2012-01-01 | GSE28307 | GEO

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

RiboTag analysis of actively translated mRNAs in Sertoli and Leydig cells in vivo

Project description:Analysis of Sertoli and Leydig cell “translatome” utilizing an in vivo ribosome tagging strategy (RiboTag) that allows a detailed and physiologically relevant characterization of the polysome-associated mRNAs in vivo. Although progress has been made in the identification of specific transcripts that are translated in Sertoli and Leydig cells and their response to hormones, efforts to expand these studies have been restricted by technical hurdles. Our analysis identified all previously characterized Leydig and Sertoli cell-specific markers and identified in a comprehensive manner novel markers of Leydig and Sertoli cells; the translational response of these two cell types to gonadotropins or testosterone was also investigated. Leydig cell-specific (Cyp17iCre: RiboTag) and Sertoli cell-specific (AMH-Cre: RiboTag) RiboTag mice were obtained by crossing RiboTag homozygous mice with Cyp17iCre or AMH-Cre mice. For in vivo LH treatment experiments, mice were injected with the GnRH antagonist acyline for 4 days before a single injection of purified human LH. After treatment, testes were homogenized and polysomes were immunoprecipitated by utilizing an anti-HA antibody. RNA was extracted, labelled, and hybridized to Mouse Gene ST 1.0 arrays.

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Somatic Cell Fate Maintenance in Mouse Fetal Testes via Autocrine/Paracrine Regulation of anti-Müllerian hormone and Activin B

Project description:Fate determination and maintenance of fetal testes in most mammals occur cell autonomously as a result of the action of key transcription factors in Sertoli cell. In the mouse testis AMH and Activin B are required for the maintenance of Sertoli cell fate. In the absence of both AMH and Activin B (in the global dKO) Sertoli cells at the testis poles transdifferentiate into granulosa cells by embryonic day 15.5.

2022-05-12 | GSE196973 | GEO

Microarray analysis of embryonic E15 mouse gonads from control male, female and Amh; Inhbb dKO males

Project description:Fate determination and maintenance of fetal testes in most mammals occur cell autonomously as a result of the action of key transcription factors in Sertoli cell. In the mouse testis AMH and Activin B are required for the maintenance of Sertoli cell fate. In the absence of both AMH and Activin B initial testis differentiation (E12.5) occurs normally but, by embryonic day 15.5, Sertoli cells at the testis poles transdifferentiate into granulosa cells.

2022-05-12 | GSE196826 | GEO

Effects of deletion of Arhgef15 gene in mouse sertoli cells on spermatogenesis

Project description:Sertoli cells, which are the only somatic cells in the seminiferous tubules, facilitate the maintenance of testicular immune privilege through the formation of the blood-testis barrier (BTB) and the expression of immunoregulatory factors. Rho guanosine exchange factor 15 (ARHGEF15) is a member of guanosine exchange factors, which are involved in cell migration, cell polarity, and cell cycle progression via activation of Rho GTPases. This study investigated the functions of ARHGEF15 in Sertoli cells during spermatogenesis using Sertoli cell–specific Arhgef15 knockout mice. The results showed that Arhgef15 deficiency in Sertoli cells affected the localization of Sertoli cell nuclei, disrupted BTB integrity, and led to premature shedding of germ cells. In Arhgef15flox/flox/Amh-Cre+ mice, the ultrastructure of the round spermatids was impaired, accompanied by acrosome degeneration, acrosomal vesicle shedding, and atrophic nuclei. Consequently, the percentage of abnormal sperm in the Arhgef15flox/flox/Amh-Cre+ epididymis was markedly elevated. RNA-sequencing analysis revealed that most of the differentially expressed genes in Sertoli cells of Arhgef15flox/flox/Amh-Cre+ mice were related to immunity. Further study revealed that the sera of Arhgef15flox/flox/Amh-Cre+ mice showed immunoreactivity against testicular lysate of wild-type mice, indicating the production of antibodies against testicular autoantigens in Arhgef15flox/flox/Amh-Cre+ mice. In conclusion, the specific deletion of Arhgef15 in Sertoli cells leads to sperm abnormality, probably by disrupting the testicular immune homeostasis, in mice.

2022-06-16 | GSE206018 | GEO

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

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Project description:Fate determination and maintenance of fetal testes in most mammals occur cell autonomously as a result of the action of key transcription factors in Sertoli cell. In the mouse testis AMH and Activin B are required for the maintenance of Sertoli cell fate. By E12.5, the testis of the dKO male are comparable with the conrol testis as Amh and Activin B are not required for the initial testis differentiation. By E15.5 Sertoli cells at the testis poles in the dKO transdifferentiate into granulosa cells.

2022-05-12 | GSE196841 | GEO

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