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Extracellular vesicles are involved in the paracrine communication between epithelial cells in different regions of the domestic cat epididymis

ABSTRACT: Extracellular vesicles are involved in the paracrine communication between epithelial cells in different regions of the domestic cat epididymis

PROVIDER: PRJNA1121928 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR29339341_1.fastq.gz	Fastqsanger.gz
	SRR29339341_2.fastq.gz	Fastqsanger.gz
	SRR29339342_1.fastq.gz	Fastqsanger.gz
	SRR29339342_2.fastq.gz	Fastqsanger.gz
	SRR29339343_1.fastq.gz	Fastqsanger.gz

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Extracellular vesicles are involved in the paracrine communication between epithelial cells in different regions of the domestic cat epididymis

Project description:Sperm maturation depends on exposure to specific microenvironments within the different segments of the epididymis, but mechanisms underlying how these microenvironments are produced or maintained are not well understood. We hypothesize that epididymal extracellular vesicles (EVs) could play a role in this process, and therefore set out to test whether the EVs from different regions of the epididymis can serve as a form of paracrine communication between epithelial cells. Domestic cat tissues were used to develop a reproducible in vitro culture system for corpus epididymis explants that were then exposed to EVs collected from upstream (i.e., caput) segments. The impacts of different culture or exposure conditions were compared by analyzing the morphology, apoptosis, transcriptional activity, and gene expression in the explants. Here, we report the development of the first in vitro culture system for epididymal tissue explants in the domestic cat model. Using this system, we found that EVs from the caput segment have a significant effect on the transcriptional profile of tissue from the corpus segment (1,233 differentially expressed genes due to EV supplementation). Of note, expression of genes associated with regulation of epithelial cell differentiation and cytokine signaling in the epididymis were regulated by the presence of EVs. Together, our findings comprise the first report of paracrine control of segmental gene regulation by epididymal EVs in any species. These results contribute to a better understanding of epididymis biology and could lead to techniques to enhance or suppress male fertility.

2024-09-01 | GSE269443 | GEO

Domestic cat variant discovery

Project description:Domestic cat variant discovery

| PRJEB34077 | ENA

Novel proteomic profiling of epididymal extracellular vesicles in the domestic cat reveals proteins related to sequential sperm maturation with differences observed between normospermic and teratospermic individuals

Project description:Extracellular vesicles (EVs) secreted by the epididymal epithelium transfer to spermatozoa key proteins that are essential in promoting motility and subsequent fertilization success. Using the domestic cat model, the objectives were to (1) characterize and compare protein content of EVs between segments of the epididymis, and (2) compare EV protein compositions between normo- and teratospermic individuals (producing >60% of abnormal spermatozoa).

2020-07-27 | MSV000085833 | MassIVE

Genome-wide mapping of regulatory regions in seven domestic cat tissues [ChIP-seq]

Project description:Histone modifications and CTCF mark the locations of genomic regulatory regions -- including promoters, enhancers, and insulators -- and have not been previously annotated for the domestic cat genome. Understanding where non-coding sequence variants fall in relation to regulatory regions is vital for determining their impact on gene function and their ability to cause disease. The addition of replicated feline ChIP-seq data from multiple tissues will aid in interpretation of non-coding variants, furthering characterization of genetic diseases and genetic test development.

2021-08-29 | GSE182952 | GEO

Proteomic analysis of germinal vesicles from preantral vs antral follicles in the domestic cat model

Project description:The domestic cat germinal vesicle (GV), which is physiologically similar to the human GV, gains the intrinsic ability to resume meiosis and support early embryo development during the pre-antral-to-antral follicle transition. However, little is known about nuclear proteins that contribute to this developmental process. We performed proteomic analysis of GVs identified candidate proteins for oocyte competence acquisition.

2017-11-14 | PXD007211 | Pride

Molecular and genetic characterization of sex-linked orange coat color in the domestic cat [C4F1]

Project description:The Sex-linked orange mutation in domestic cats causes variegated patches of reddish/yellow hair and is a defining signature of random X-inactivation in female tortoiseshell and calico cats. Unlike the situation for most coat color genes, there is no apparent homolog for Sex-linked orange in other mammals. We show that Sex-linked orange is caused by a 5 kb deletion that leads to ectopic and melanocyte-specific expression of the Rho GTPase Activating Protein 36 (Arhgap36) gene. Single cell RNA-seq studies from fetal cat skin reveal that red/yellow hair color is caused by reduced expression of melanogenic genes that are normally activated by the Melanocortin 1 receptor (Mc1r)—cyclic adenosine monophosphate (cAMP)—protein kinase A (PKA) pathway, but Mc1r and its ability to stimulate cAMP accumulation is intact. Instead, we show that expression of Arhgap36 in melanocytes leads to reduced levels of the PKA catalytic subunit (PKAC); thus, Sex-linked orange is genetically and biochemically downstream of Mc1r. Our findings resolve a longstanding comparative genetic puzzle, provide in vivo evidence for the ability of Arhgap36 to inhibit PKA, and reveal a molecular explanation for a charismatic color pattern with a rich genetic history.

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Molecular and genetic characterization of sex-linked orange coat color in the domestic cat [C96]

2025-05-06 | GSE290420 | GEO

Role of Dicer1-dependent microRNAs in the paracrine control of epididymal gene expression

Project description:Dicer1 is an endoribonuclease involved in the biogenesis of functional microRNAs (miRNAs). These small non-coding RNAs are important regulators of the posttranscriptional gene expression and participate to the control of male fertility. Knowing that 1) Dicer1-dependent factors are needed for proper sperm maturation in the epididymis, and that 2) miRNAs are potent mediators of intercellular communication in most biological systems, we investigated the role of Dicer1 dependent-miRNAs produced from the proximal epididymis (initial segment/caput) on the paracrine regulation of epididymal gene expression in the distal epididymis regions (i.e. corpus and cauda). To this aim, we performed comparative microarray and ANOVA analyses on control vs. Defb41iCre/wt;Dicer1fl/fl mice in which functional Dicer1 is absent from the principal cells of the proximal epididymis. We identified 21 and 16 transcripts, including Prostate And Testis Expressed 4 protein and the Zn-alpha 2-glycoprotein, that display significant expression level changes in the corpus and cauda regions, respectively (Fold change >2 or <-2; p<0.001). In addition, 154 miRNAs, including miR- 210, miR-672, miR-191 and miR-204, show a significantly impaired biogenesis in the absence of Dicer1 from the proximal epididymis (Fold change>2 or <-2; p<0.01). These miRNAs are secreted via extracellular vesicles derived from DC2 epididymal principal cell line, and their expression correlates with target transcripts involved in important biological pathways, as evidenced by in silico analysis. These observations suggest that Dicer1-dependent miRNAs could act as potent paracrine regulators of epididymal functions (i.e. control of sperm motility, ciliogenesis) and may contribute to the infertility phenotype observed in the Defb41iCre/wt;Dicer1fl/fl mouse model. These findings open new avenues for the identification of molecular targets important to male fertility control.

2016-09-19 | GSE77139 | GEO

Genome-wide mapping of regulatory regions in seven domestic cat tissues [ChIP-seq]

Project description:Genome-wide mapping of regulatory regions in seven domestic cat tissues [ChIP-seq]

| PRJNA758414 | ENA

Expression data from paracrine senescence

Project description:Senescence can be transmitted in a paracrine way from cells undergoing Oncogene Induced Senescence (OIS) to naM-CM-/ve normal cells. We define this phenomenon as M-bM-^@M-^\paracrine senescenceM-bM-^@M-^] We used microarrays to compare the trancriptome of cells undergoing paracrine senescence to the transcriptome of cells suffering OIS to unveil the common signatures defining both events and the similarities between them IMR90 cells were co-cultured with IMR90 ER:RAS undergoing OIS or IMR90-Vector control cells using 0.2 M-NM-<m pore transwell (anopore) to allow communication of soluble factors but physical separation of the two cell populations. The total mRNA of IMR90, IMR90 ER:RAS or IMR90 cells cultured in Transwells together with IMR90 vector or IMR90 ER:RAS cells during 7 days in the presence of 200 nM 4OHT and 0.5 % FBS was extracted and hybridized on Affymetrix microarrays to compare paracrine senescence to OIS.

2013-06-13 | E-GEOD-41318 | biostudies-arrayexpress

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