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Profiling of 18 - 45 nt small RNAs in the caput epididymal sperm of mice and rats

ABSTRACT: Profiling of 18 - 45 nt small RNAs in the caput epididymal sperm of mice and rats

PROVIDER: PRJNA503183 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR8140606.fastq.gz	Fastqsanger.gz
	SRR8140607.fastq.gz	Fastqsanger.gz

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Profiling of 18 - 45 nt small RNAs in the caput epididymal sperm of mice and rats

Project description:Total RNAs were extracted from the purified caput epididymal spermatozoa of mouse (C57BL/6, 2 months old) and rats (Sprague Dawley, 450g young adult), and the 18 - 45 nt fraction small RNAs were subjected to library construction and deep sequencing, using Illumina HiSeq 2000.

2018-10-31 | GSE122025 | GEO

Profiling of 18 - 45 nt small RNAs in the cauda epididymal sperm of mice and rats.

Project description:Total RNAs were extracted from the purified cauda epididymal spermatozoa of mouse (C57BL/6, 2 months old) and rats (Sprague Dawley, 450g young adult), and the 18 - 45 nt fraction small RNAs were subjected to library construction and deep sequencing, using Illumina GAIIx.

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Profiling of 18 - 45 nt small RNAs in the cauda epididymal sperm of mice and rats.

Project description:Profiling of 18 - 45 nt small RNAs in the cauda epididymal sperm of mice and rats.

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RNA Sequencing Analysis of Wild-type and Adgrg2-KO Caput Epididymal Transcriptomes

Project description:Purpose: The goal of this study is to detect differentially expressed genes, between wild-type (WT) and Adgrg2-/Y (Adgrg2-KO) caput epididymis by RNA sequencing Methods: Caput epididymal mRNA profiles of 8-week-old WT and Adgrg2-KO mice were generated by deep sequencing, in triplicate, using Illumina NovaSeq6000. Results: RNA-seq data identified differentially expressed transcripts. Conclusions: Our results show that the expression of many genes was slightly downregulated in Adgrg2-KO caput epididymis compared with WT one.

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Profiling of 18 - 40 nt small RNAs and transcriptomes in the testis and epididymis of WT and Gpx5 KO mice.

Project description:Total RNAs were extracted from the Testis and Epididymal Caput, Corpus and Cauda tissues of 2-month and 13-month-old WT and Gpx5 KO mice (C57BL/6). The 18 - 40 nt fraction small RNAs and transcriptomes were subjected to library construction and deep sequencing, using Illumina GAIIx or Hiseq 2000.

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Immortalized mouse caput epididymal (mECap18) cell line recapitulates in vivo environment

Project description:Between the testes and the vas deferens lies the epididymis, a highly convoluted tubule whose unique environmental characteristics are crucial for the functional maturation of spermatozoa. Within the epididymal epithelium, the secretory system releases small non-coding RNA molecules (sncRNAs) and proteins housed within extracellular vesicles (epididymosomes) that are destined for delivery to recipient sperm cells which play key roles in fertility success and act as major conduits of epigenetic information delivered to the oocyte. The epithelial cells of the epididymis have proven to be highly sensitive to environmental stressors which can influence the sperm epigenome. Utilizing a label-free mass spectrometry proteomic approach we sought to characterize an immortalized mouse caput epididymal epithelial cell line (mECap18) and sequenced >5,100 proteins. When compared to a previous in-vivo mouse caput epithelial proteomic profile, a significant overlap (>75%) and proportionally similar patterns of protein classification were observed. Furthermore, key pathways associated with protein synthesis (e.g. EIF2 signaling) and cellular protection in the male reproductive tract (e.g. sirtuin signaling) were enriched in both proteomes. Leveraging this comparison supports mECap18 cells as a promising in-vitro model for recapitulating the in-vivo environment, providing a platform for testing therapeutic invention.

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Project description:While assisted reproductive technologies (ARTs) are widely used in domestic animals, successful implementation of ARTs to conserve wildlife species remains challenging. In macropods, crucial aspects of fundamental reproductive biology, including changes induced by epididymal maturation, remain unknown, limiting the development of ARTs. In this context we performed a proteomic analysis of spermatozoa from the caput, corpus, and cauda epididymis of Eastern Grey Kangaroos (n = 6) to profile changes over epididymal maturation. Samples prepared by FASP digestion were analysed by LC-MS/MS with SWATH acquisition. A total of 4,304 proteins were identified, with significant overlap across epididymal regions. Highly abundant proteins in common across caput, corpus and cauda spermatozoa had strong enrichment for tubulins and included 4 histone proteins. The most significant proteomic remodelling was observed in the corpus to cauda transition, late in epididymal transit (728 differentially abundant proteins). Overall proteomic changes across epididymal maturation (1,131 differentially abundant proteins) suggested a loss of sperm glycosidases and an increase in flagellar proteins, including tubulins and dyneins. These findings serve to highlight both consistencies with eutherian sperm epididymal maturation (e.g. bias towards protein loss over transit, transfer of proteins via extracellular vesicles) and elements which are likely unique to marsupials (e.g. reduced chromatin stability, potential use of β-oxidation as a major metabolic pathway). This critical information can now be leveraged to further develop ARTs in marsupials.

2025-09-29 | PXD064577 | Pride

Transcription profiling of of human epididymal gene expression in the caput epididymides of infertile and fertile patients

Project description:Caput epididymides biopsies from 4 patients suffering from non-obstructive azoospermia and from 4 patients with active spermatogenesis were compared. 414 genes in the caput epididymides were differentially regulated in infertile men by at least a 2-fold change as compared to the fertile men. Experiment Overall Design: Comparative caput epididymal gene expression from 4 patients with either active spermatogenesis (reference samples) or non-obstructive azoospermia. On each array, infertile tissue were compared to fertile tissue. Whenever the fertile tissues were labeled with cyanine 5 (see samples entitled "Patients 1 and 2" and "Patients 7 and 8"), the fluorescence ratios were swapped. Data was normalized using a locally weighted regression Lowess method and genes were considered differentially expressed in infertile sample versus fertile sample if there was at least a 2-fold change in 3 patients out of 4.

2008-06-16 | E-GEOD-9194 | biostudies-arrayexpress

Comparison of gene expression between a human epididymal cell line derived from the caput epididymidis of a fertile patient and another one derived from the caput epididymidis of an obstructive azoospermic patient

Project description:Transcriptional profiling of human epididymal cell lines FHCE1 and IHCE1 respectively derived from the caput epididymidis of a fertile and an obstructive azoospermic patient. These two cell lines are comprised of homogenous populations of principal cells immortalized with the SV40 Large T antigen. Goal was to determine if cell junctions are impaired in this type of male infertility.

2010-06-01 | GSE21391 | GEO

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