Project description:Medial vestibular nucleus (MVN) neurons were functionally classified by single-cell gene expression profiling. The transcriptional diversity across MVN neuronal subtypes was further examined by microarray analysis.
Project description:To investigate which miRNAs regulate the vestibular compensation after unilateral vestibular deafferentiation (UVD), we have performed microarray for miRNAs as a discovery platform. UVD induces breakdown of the activity of ipsilesional vestibular nuclei and an unbalance of activity between bilateral vestibular nuclei. Vestibular compensation is a course of rebalancing of activities of bilateral vestibular nuclei. It takes place mainly in medial vestibular nucleus. This study was performed using seven week-old-male Sprague–Dawley rats. Based on our previous experiment about vestibular compensation course, we set two time points for harvesting medial vestibular nuclei: 4hr and 4 days after unilateral vestibular deafferentiation. Twenty four animals were divided into two experimental groups: UVD group undergoing UVD at left side (n = 12); and SO group undergoing sham operation (SO) at left side (n=12). Six animals of each group were anesthetized deeply and euthanized at 4 hr or 4 days after surgery, respectively. Medial vestibular nucleus at left side was harvested. Medial vestibular nucleus from three animals became one sample for microarray. Sequentially two samples were obtained for each time point in one group. Microarray for miRNAs was performed using the Agilent Rat miRNA Microarray 8x15K platforms. Considering the fold change of normalized signal intensities between two time points in UVD group and between UVD and SO groups at the same time, miR-31a-5p, 133a-3p, 133b-3p, 204-5p, 206-3p, 218a-5p, 219a-5p, 221-3p and 497-5p were selected as the candidate miRNAs. This result was validated by quantitative reverse transcription-PCR.
Project description:Single-nucleus RNA sequencing (snRNA-seq) was used to profile the transcriptome of 5,264 nuclei in mouse adult testis. This dataset includes two samples from two different individuals. This dataset is part of a larger evolutionary study of adult testis at the single-nucleus level (97,521 single-nuclei in total) across mammals including 10 representatives of the three main mammalian lineages: human, chimpanzee, bonobo, gorilla, gibbon, rhesus macaque, marmoset, mouse (placental mammals); grey short-tailed opossum (marsupials); and platypus (egg-laying monotremes). Corresponding data were generated for a bird (red junglefowl, the progenitor of domestic chicken), to be used as an evolutionary outgroup.
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
Project description:We collected whole genome testis expression data from hybrid zone mice. We integrated GWAS mapping of testis expression traits and low testis weight to gain insight into the genetic basis of hybrid male sterility.