Single cell RNA-seq study of wild type and Hox mutant developing uterus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA484769 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR7647932_1.fastq.gz | Fastqsanger.gz | |||
| SRR7647932_2.fastq.gz | Fastqsanger.gz | |||
| SRR7647934_1.fastq.gz | Fastqsanger.gz | |||
| SRR7647934_2.fastq.gz | Fastqsanger.gz | |||
| SRR7647936_1.fastq.gz | Fastqsanger.gz |
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Project description:This study identifies a novel role for the Hoxc9,10,11 genes in uterine gland formation. This function is redundant with the Hoxa9,10,11 and Hoxd9,10,11 genes and is only seen in a sensitized genotype with reduced expression of these paralogs. We further used scRNA-seq to define the gene expression patterns of the multiple cell types of the developing uterus. The results define the gene expression patterns driving lineage specific development. In addition scRNA-seq was used to characterize the perturbed gene expression levels of all developing uterus cell types in the ACD+/- and ACD+/-WTA11 mutants. Particularly striking was the reduced Wnt signaling and the disruption of the Cxcl12/Cxcr4 axis in the mutants.
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Project description:The uterus is a remarkable organ that must guard against infections while maintaining the ability to support growth of a fetus without rejection. The Hoxa10 and Hoxa11 genes have previously been shown to play essential roles in uterus development and function. In this report we show that the Hoxa9,10,11, Hoxc9,10,11, Hoxd9,10,11 genes play a redundant role in the formation of uterine glands. In addition, we use single cell RNA-seq to create a high resolution gene expression atlas of the developing wild type mouse uterus. Cell types and subtypes are defined, for example dividing endothelial cells into arterial, venous, capillary, and lymphatic, while epithelial cells separate into luminal and glandular subtypes. Further, a surprising heterogeneity of stromal and myocyte cell types are identified. Transcription factor codes and ligand/receptor interactions are characterized. We also used single cell RNA-seq to globally define the altered gene expression patterns in all developing uterus cell types for two Hox mutants, with 8 or 9 mutant Hox genes. The mutants show a striking disruption of Wnt signaling as well as the Cxcl12/Cxcr4 ligand/receptor axis.
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Project description:The Hox complex consists of 39 genes arranged in 4 clusters of flanking genes and 13 paralogous groups in mammals. To assess the functional redundancy of Hox abdominal-B genes during renal development, we used a modified recombineering strategy to simultaneous introduce frameshift mutations into the Hox9, Hox10, and Hox11 flanking genes of the HoxA, HoxC, and HoxD paralogous groups. We performed RNA seq on whole kidneys at E18.5 in triplicates for representative genotypes including: wild type; Hoxa9,10,11-/- HoxC9,10,11+/-, Hoxa9,10,11+/- HoxC9,10,11-/-, Hoxa9,10,11-/- HoxC9,10,11-/-. Our results suggest that the loss of Hox function results in a partial metanephric to mesonephric transformation, with tubules co-expressing markers of both proximal tubules and collecting ducts, as well as markers of mesonephric-derived epididymis tubules.
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Project description:Hox genes are key regulators of development. In mammals, the study of these genes is greatly confounded by their large number, overlapping functions, and their interspersed shared enhancers. In this report, we describe a novel recombineering strategy that was used to introduce simultaneous frameshift mutations into the flanking Hoxa9, Hoxa10, and Hoxa11 genes, as well as their paralogs on the HoxD cluster. The resulting mutant mice displayed dramatic homeotic transformations of the reproductive tracts, with uterus anteriorized towards oviduct and the vas deferens anteriorized towards epididymis. The Hoxa9,10,11 mutant mice provided a sensitized genetic background that allowed the discovery of Hoxd9,10,11 reproductive tract patterning function. Both shared and distinct Hox functions were defined. The HoxD genes played a crucial role in the regulation of the uterine immune function. Non-coding nonpolyadenylated RNAs were among the key Hox targets. In addition, we observed a surprising anti-dogmatic posteriorization of the uterine epithelium.
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Project description:In female mammals, the oviduct and uterus play an important role in successful pregnancy by affecting on gamete transport, fertilization, implantation and maintenance of pregnancy. In the mutant Amhr2-cre; Smad4 fx/fx mice, the reproductive functions of both the oviduct and uterus are impaired due to the development of oviductal diverticula and defective uterine vascularization and decidualization, respectively. We used microarrays to decipher the gene expression changes responsible for this phenotype.
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Project description:Hox genes are key regulators of development. In mammals, the study of these genes is greatly confounded by their large number, overlapping functions, and their interspersed shared enhancers. In this report, we describe a novel recombineering strategy that was used to introduce simultaneous frameshift mutations into the flanking Hoxa9, Hoxa10, and Hoxa11 genes, as well as their paralogs on the HoxD cluster. The resulting mutant mice displayed dramatic homeotic transformations of the reproductive tracts, with uterus anteriorized towards oviduct and the vas deferens anteriorized towards epididymis. The Hoxa9,10,11 mutant mice provided a sensitized genetic background that allowed the discovery of Hoxd9,10,11 reproductive tract patterning function. Both shared and distinct Hox functions were defined. The HoxD genes played a crucial role in the regulation of the uterine immune function. Non-coding nonpolyadenylated RNAs were among the key Hox targets. In addition, we observed a surprising anti-dogmatic posteriorization of the uterine epithelium. Reproductive tracts were collected from WT and Hox mutant mice (n=3/genotype) aged 3-7 months in order to characterize the molecular changes caused by mutation of Hoxa9,10,11 and Hoxd9,10,11. Female mice were staged and collected in diestrus.
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