Gene expression profiling of NUAK kinase overexpression in Drosophila larval muscle development
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ABSTRACT:
PROVIDER: PRJNA842684 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR19416933_1.fastq.gz | Fastqsanger.gz | |||
| SRR19416933_2.fastq.gz | Fastqsanger.gz | |||
| SRR19416934_1.fastq.gz | Fastqsanger.gz | |||
| SRR19416934_2.fastq.gz | Fastqsanger.gz | |||
| SRR19416935_1.fastq.gz | Fastqsanger.gz |
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Project description:Signal transduction pathways mediated by kinases control diverse biological outputs at the level of cells and tissues to regulate a diverse array of biological and developmental events. To gain insight into how muscle expression of the evolutionarily conserved NUAK kinase regulates the transcriptional landscape during Drosophila melanogaster development, we performed high-throughput sequencing of RNA from either whole larvae or dissected muscle fillets at the end of larval development. Raw data was generated using the Illumina HiSeq platform. After trimming and mapping to the Drosophila reference genome, differential gene expression and GO enrichment analysis were completed.
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Project description:Pyruvate kinase (Pyk) is a rate-limiting enzyme that catalyzes the final metabolic reaction in glycolysis. The importance of this enzyme, however, extends far beyond ATP production, as Pyk is also known to regulate tissue growth, cell proliferation, and development. Studies of this enzyme in Drosophila melanogaster, however, are complicated by the fact the fly genome encodes six Pyk paralogs and the function of these individual genes remain poorly defined. To address this issue, we used a phylogenetic approach to demonstrate that the gene Pyk encodes the enzyme most similar to the mammalian Pyk orthologs while the other five Drosophila Pyk have significantly diverged from the canonical enzyme. Consistent with this observation, metabolomic studies of two different Pyk mutant backgrounds revealed that larvae lacking Pyk exhibit a severe block in glycolysis, with a buildup of glycolytic intermediates upstream of pyruvate. However, our analysis also unexpectantly reveals that steady state pyruvate levels are unchanged in Pyk mutants, indicating that larval metabolism maintains pyruvate pool size despite severe metabolic limitations. Consistent with our metabolomics findings, a complementary RNAseq analysis revealed that genes involved in lipid metabolism and peptidase activity are elevated in Pyk mutants, again indicating that loss of this glycolytic enzyme induces compensatory changes in other aspects of metabolism. Overall, our study provides both insight towards understanding how Drosophila larval metabolism adapts to disruption of glycolytic metabolism and immediate clinical relevance considering that Pyk deficiency is the most common congenital enzymatic defect in humans.
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2020-12-08 | GSE162810 | GEO
Project description:Signal transduction pathways mediated by kinases control diverse biological outputs at the level of cells and tissues to regulate a diverse array of biological and developmental events. To gain insight into how muscle expression of the evolutionarily conserved NUAK kinase regulates the transcriptional landscape during Drosophila melanogaster development, we performed high-throughput sequencing of RNA from either whole larvae or dissected muscle fillets at the end of larval development. Raw data was generated using the Illumina HiSeq 4000 platform. After trimming and mapping to the Drosophila reference genome, differential gene expression and GO enrichment analysis were completed. Raw data are deposited in the NCBI Gene Expression Ominbus (GEO) repository under GEO accession GSE204894.
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Project description:Muscle development and diversity require a large number of spatially and temporally regulated events controlled by transcription factors (TFs). Drosophila has long stood as a model organism to study myogenesis due to the highly conserved key TFs involved at all stages of muscle development, from specification to differentiation. While many studies focused on the diversification of Drosophila larval musculature, how distinct adult muscle types are generated is much less characterised. Here, we identify a novel essential regulator of Drosophila thoracic flight muscle development, the Hox TF Antennapedia (Antp). Correcting a long standing misconception that flight muscle development occurs without the input of Hox TFs, we show that Antp intervenes at several stages of adult flight muscle development, from the establishment of the progenitor pool in the embryo to myoblast differentiation in the early pupa. Furthermore, the precisely regulated clearance of Hox at the pupal stage in the developing indirect flight muscle fibers is required to allow for stretch-activated fibrillar muscle fate diversification that sets these flight muscles apart from all other adult tubular muscle types.
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Project description:Muscle development and diversity require a large number of spatially and temporally regulated events controlled by transcription factors (TFs). Drosophila has long stood as a model organism to study myogenesis due to the highly conserved key TFs involved at all stages of muscle development, from specification to differentiation. While many studies focused on the diversification of Drosophila larval musculature, how distinct adult muscle types are generated is much less characterised. Here, we identify a novel essential regulator of Drosophila thoracic flight muscle development, the Hox TF Antennapedia (Antp). Correcting a long standing misconception that flight muscle development occurs without the input of Hox TFs, we show that Antp intervenes at several stages of adult flight muscle development, from the establishment of the progenitor pool in the embryo to myoblast differentiation in the early pupa. Furthermore, the precisely regulated clearance of Hox at the pupal stage in the developing indirect flight muscle fibers is required to allow for stretch-activated fibrillar muscle fate diversification that sets these flight muscles apart from all other adult tubular muscle types. This SuperSeries is composed of the SubSeries listed below.
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Project description:RNA-sequencing analysis of Drosophila Hpo overexpression and knockdown in larval fat tissue
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Project description:Single-cell RNA-sequencing (scRNA-seq) was applied to identify and characterise macrophage subsets that responded to larval zebrafish muscle injury. The Tg(mpeg1:mCherry) transgenic zebrafish line was utilised to isolate mCherry-expressing macrophages by FACS. Following needle-stab muscle injury of a 4 days post fertilisation (dpf) larvae, the wound site was dissected out at 1, 2, and 3 days post injury (dpi) for macrophage isolation. Macrophages isolated from 4 dpf-uninjured larvae were also included. This analysis led to the identification of 8 discrete clusters of macrophages, one of which corresponded to uninjured macrophages. The 7 wound-present macrophage subsets highlighted greater macrophage heterogeneity than previously described in an in vivo skeletal muscle injury context.
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