Mus musculus
Ontology highlight
ABSTRACT:
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| DRR022931.fastq.gz | Fastqsanger.gz | |||
| DRR022932.fastq.gz | Fastqsanger.gz | |||
| DRR022933.fastq.gz | Fastqsanger.gz | |||
| DRR022934.fastq.gz | Fastqsanger.gz | |||
| DRR022935.fastq.gz | Fastqsanger.gz |
Items per page: 5 1 - 5 of 15 |
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Project description:Spermatogonial differentiation is a developmental process that is essential for spermatogenesis, but the molecular and cellular changes that germ cells must undergo to transition from undifferentiated spermatogonia to differentiating spermatogonia remain largely undefined. Retinoic acid (RA) is necessary and sufficient for spermatogonial differentiation. Using the postnatal mouse testis, we examine the transcriptome changes that accompany spermatogonial differentiation. Spermatogenesis was synchronized by administration of potent and selective RA synthesis inhibitor; as a result, testes contained only undifferentiated spermatogonia. Then, the inhibitor was discontinued, and mice were given a single dose of exogenous RA to initiate spermatogonial differentiation. We measured transcriptomes in FACS-enriched germ cells either before RA administration, when the cells correspond to Aal spermatogonia (and a minor contribution of spermatogonial stem cells) or at two points after RA administration, when the cells correspond to A1 or A3 differentiating spermatogonia. The results of this study reveal the full transcriptome changes accompanying spermatogonial differentiation in the mouse.
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Project description:Microarray analysis was performed in order to detail the gene expression profiles in murine b-2M-SPa-6+c-kit-undifferentiated and b-2M-SPa-6+c-kit+ differentiating spermatogonia. These data were used to compare human and mouse transcriptomes of undifferentiated spermatogonia.
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Project description:RNA-seq of sorted undifferentiated spermatogonia from synchronized postnatal testes.
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Project description:Germline-specific RiboTag IP-seq from postnatal testes synchronized for undifferentiated spermatogonia.
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Project description:PURPOSE: To provide a detailed gene expression profile of the normal postnatal mouse cornea. METHODS: Serial analysis of gene expression (SAGE) was performed on postnatal day (PN)9 and adult mouse (6 week) total corneas. The expression of selected genes was analyzed by in situ hybridization. RESULTS: A total of 64,272 PN9 and 62,206 adult tags were sequenced. Mouse corneal transcriptomes are composed of at least 19,544 and 18,509 unique mRNAs, respectively. One third of the unique tags were expressed at both stages, whereas a third was identified exclusively in PN9 or adult corneas. Three hundred thirty-four PN9 and 339 adult tags were enriched more than fivefold over other published nonocular libraries. Abundant transcripts were associated with metabolic functions, redox activities, and barrier integrity. Three members of the Ly-6/uPAR family whose functions are unknown in the cornea constitute more than 1% of the total mRNA. Aquaporin 5, epithelial membrane protein and glutathione-S-transferase (GST) omega-1, and GST alpha-4 mRNAs were preferentially expressed in distinct corneal epithelial layers, providing new markers for stratification. More than 200 tags were differentially expressed, of which 25 mediate transcription. CONCLUSIONS: In addition to providing a detailed profile of expressed genes in the PN9 and mature mouse cornea, the present SAGE data demonstrate dynamic changes in gene expression after eye opening and provide new probes for exploring corneal epithelial cell stratification, development, and function and for exploring the intricate relationship between programmed and environmentally induced gene expression in the cornea. Keywords: other
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