Mus musculus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA296077 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR2443110_1.fastq.gz | Fastqsanger.gz | |||
| SRR2443110_2.fastq.gz | Fastqsanger.gz | |||
| SRR2443120_1.fastq.gz | Fastqsanger.gz | |||
| SRR2443120_2.fastq.gz | Fastqsanger.gz | |||
| SRR2443130_1.fastq.gz | Fastqsanger.gz |
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Project description:RNA sequencing of primary thymic, bone and skin mesenchymal cells
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Project description:Purpose : Elucidate post-natal role of SCA1+ thymic mesenchymal cells (tMCs) and evaluate the functional overlap between thymic, bone and skin MCs. Method : By high speed cell sorting, we isolated primary MCs (Lin- SCA1+ cells) from mouse thymus, bone and skin. We extracted their respective total RNA and compared their transcriptome by high-throughput RNA-sequencing. Results : We found a total of 2036 differentially expressed genes (FC>5, p-adj<0.1 and RPKM>1) between the 3 MC populations. IPA analyses revealed that each MC population was enriched for genes associated to phagocyte chemotaxis. We also denoted 2850 genes with shared expression across MC populations. IPA analysis of those shared genes also revealed an enrichment for genes influencing phagocyte migration, chemotaxis and function. Finally, MC transcriptomes showed that all 3 MC populations were expressing genes associated with hematopoietic stem and progenitor cell (HSPC) support, strongly suggesting that MCs from thymic, bone and skin all possess the ability to support HSPCs. Conclusion : Overall, our study highlighted 3 potential novel roles for tMCs : 1) Promoting macrophage/monocyte chemotaxis, 2) Enhacing the apoptotic cell clearance process and 3) setting an inviting niche for hematopoietic progenitors. These novel biological roles for tMCs could have substantial effets on thymic biology. Finally, our RNA-seq data offer a valuable resource to the community that can be mined to explore multiple questions related mesenchymal cell biology. Transcriptome comparison between MC populations
2016-02-26 | E-GEOD-73175 | biostudies-arrayexpress
Project description:Purpose : Elucidate post-natal role of SCA1+ thymic mesenchymal cells (tMCs) and evaluate the functional overlap between thymic, bone and skin MCs. Method : By high speed cell sorting, we isolated primary MCs (Lin- SCA1+ cells) from mouse thymus, bone and skin. We extracted their respective total RNA and compared their transcriptome by high-throughput RNA-sequencing. Results : We found a total of 2036 differentially expressed genes (FC>5, p-adj<0.1 and RPKM>1) between the 3 MC populations. IPA analyses revealed that each MC population was enriched for genes associated to phagocyte chemotaxis. We also denoted 2850 genes with shared expression across MC populations. IPA analysis of those shared genes also revealed an enrichment for genes influencing phagocyte migration, chemotaxis and function. Finally, MC transcriptomes showed that all 3 MC populations were expressing genes associated with hematopoietic stem and progenitor cell (HSPC) support, strongly suggesting that MCs from thymic, bone and skin all possess the ability to support HSPCs. Conclusion : Overall, our study highlighted 3 potential novel roles for tMCs : 1) Promoting macrophage/monocyte chemotaxis, 2) Enhacing the apoptotic cell clearance process and 3) setting an inviting niche for hematopoietic progenitors. These novel biological roles for tMCs could have substantial effets on thymic biology. Finally, our RNA-seq data offer a valuable resource to the community that can be mined to explore multiple questions related mesenchymal cell biology.
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Project description:A transcriptome study in mouse hematopoietic stem cells was performed using a sensitive SAGE method, in an attempt to detect medium and low abundant transcripts expressed in these cells. Among a total of 31,380 unique transcript, 17,326 (55%) known genes were detected, 14,054 (45%) low-copy transcripts that have no matches to currently known genes. 3,899 (23%) were alternatively spliced transcripts of the known genes and 3,754 (22%) represent anti-sense transcripts from known genes. Mouse hematopoietic stem cells were purified from bone marrow cells using negative and positive selection with a Magnetic-Activated Cell Sorter (MACS). total RNA and mRNA were purified from the purified cells using Trizol reagent and magnetic oligo dT beads. Double strand cDNAs were synthesized using a cDNA synthesis kit and anchored oligo dT primers. After NlaIII digestion, 3’ cDNAs were isolated and amplified through 16-cycle PCR. SAGE tags were released from the 3’ cDNA after linker ligation. Ditags were formed, concatemerized and cloned into a pZERO vector. Sequencing reactions were performed with the ET sequencing terminator kit. Sequences were collected using a Megabase 1000 sequencer. SAGE tag sequences were extracted using SAGE 2000 software.
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Project description:Background: Comparison of temporal gene expression profiles. The RNA-seq data comprises 3 age groups: 2, 15 and 30 months for mouse skin; 5, 24 and 42 months for zebrafish skin. Illumina 50bp single-stranded single-read RNA sequencing Jena Centre for Systems Biology of Ageing - JenAge (www.jenage.de)
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Project description:Introgressed variants from other species can be an important source of genetic variation because they may arise rapidly, can include multiple mutations on a single haplotype, and have often been pretested by selection in the species of origin. Although introgressed alleles are generally deleterious, several studies have reported introgression as the source of adaptive alleles-including the rodenticide-resistant variant of Vkorc1 that introgressed from Mus spretus into European populations of Mus musculus domesticus. Here, we conducted bidirectional genome scans to characterize introgressed regions into one wild population of M. spretus from Spain and three wild populations of M. m. domesticus from France, Germany, and Iran. Despite the fact that these species show considerable intrinsic postzygotic reproductive isolation, introgression was observed in all individuals, including in the M. musculus reference genome (GRCm38). Mus spretus individuals had a greater proportion of introgression compared with M. m. domesticus, and within M. m. domesticus, the proportion of introgression decreased with geographic distance from the area of sympatry. Introgression was observed on all autosomes for both species, but not on the X-chromosome in M. m. domesticus, consistent with known X-linked hybrid sterility and inviability genes that have been mapped to the M. spretus X-chromosome. Tract lengths were generally short with a few outliers of up to 2.7 Mb. Interestingly, the longest introgressed tracts were in olfactory receptor regions, and introgressed tracts were significantly enriched for olfactory receptor genes in both species, suggesting that introgression may be a source of functional novelty even between species with high barriers to gene flow.
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