Gene expression during chicken myogenesis
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA622816 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR11472371_1.fastq.gz | Fastqsanger.gz | |||
| SRR11472371_2.fastq.gz | Fastqsanger.gz | |||
| SRR11472372_1.fastq.gz | Fastqsanger.gz | |||
| SRR11472372_2.fastq.gz | Fastqsanger.gz | |||
| SRR11472373_1.fastq.gz | Fastqsanger.gz |
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Project description:Chick is an ideal model system for myogenesis study. Lots of genes would change their expression during myogenesis, however, is there any difference about gene expression between chick and mice? Our study represents the detailed analysis of the transcriptomes of chicken primary myoblasts, growing myoblasts, and myotubes, with biologic replicates, generated by RNA-seq technology. The data reported here may provide an important understanding of the genes involved in the regulation of chicken myogenesis.
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Project description:Chick is an ideal model system for myogenesis study. Lots of genes would change their expression during myogenesis, however, is there any difference about gene expression between chick and mice? Our study represents the first detailed analysis of the transcriptomes of chicken primary myoblasts and myotubes, with biologic replicates, generated by RNA-seq technology. The data reported here may provide an important understanding of the genes involved in the regulation of chicken myogenesis.
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Project description:This study profiled the expression of miRNA during myogenesis of the C2C12 mouse myoblast cell line. Cells were harvest at different stages during myogenesis including proliferating, confluence, 1 day post-differentiation induction, 2 day post-differentiation induction and 4 days post-differentiation induction. Keywords: time course This experiment was a reference design miRNA microarray where all time points were compared to a pooled proliferating C2C12 sample, made up of 4 proliferating biological replicates. Each time point had four bioloigcal replicates of which two were labelled with Cy3 and two were labelled with Cy5.
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Project description:Endoplasmic reticulum (ER) plasticity and ER-phagy are intertwined processes essential for maintaining ER dynamics. We investigated the interplay between two isoforms of the ER-phagy receptor FAM134B in regulating ER remodeling in differentiating myoblasts. During myogenesis, the canonical FAM134B1 is degraded, while its isoform FAM134B2 is transcriptionally upregulated. The switch, favoring FAM134B2, indicates its significance as a regulator of ER morphology during myogenesis. FAM134B2 partial reticulon homology domain, with its rigid conformational characteristics, enables an efficient ER reshaping. FAM134B2 action increases in the active phase of differentiation leading to ER restructuring via ER-phagy, which then reverts to physiological levels when myotubes are mature and the ER reorganized. Knocking out both FAM134B isoforms in myotubes results in aberrant proteome landscape and the formation of dilated ER structures, both of which are rescued by FAM134B2 re-expression. Our results underscore how the fine tuning of FAM134B isoforms and ER-phagy orchestrate the ER dynamics during myogenesis providing insights into the molecular mechanisms governing ER homeostasis in muscle cells.
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Project description:Endoplasmic reticulum (ER) plasticity and ER-phagy are intertwined processes essential for maintaining ER dynamics. We investigated the interplay between two isoforms of the ER-phagy receptor FAM134B in regulating ER remodeling in differentiating myoblasts. During myogenesis, the canonical FAM134B1 is degraded, while its isoform FAM134B2 is transcriptionally upregulated. The switch, favoring FAM134B2, indicates its significance as a regulator of ER morphology during myogenesis. FAM134B2 partial reticulon homology domain, with its rigid conformational characteristics, enables an efficient ER reshaping. FAM134B2 action increases in the active phase of differentiation leading to ER restructuring via ER-phagy, which then reverts to physiological levels when myotubes are mature and the ER reorganized. Knocking out both FAM134B isoforms in myotubes results in aberrant proteome landscape and the formation of dilated ER structures, both of which are rescued by FAM134B2 re-expression. Our results underscore how the fine tuning of FAM134B isoforms and ER-phagy orchestrate the ER dynamics during myogenesis providing insights into the molecular mechanisms governing ER homeostasis in muscle cells.
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Project description:Tamoxifen, a selective estrogen receptor modulator (SERM), is commonly used in the treatment of hormone-responsive cancers. The effects of tamoxifen in anabolic tissues harboring estrogen-receptors, such as skeletal muscle, are poorly understood. As estrogen and estrogen receptors play an important role in skeletal muscle development and repair, we hypothesize that tamoxifen may have specific effects on myogenesis, the developmental process underlying muscle cells differentiation and repair. Myogenesis is characterized by fine-tuned changes in protein expression as embryonic myoblasts and adult satellite cells transition from pluripotent stem cells to multinucleated, contractile muscle fibers: we undertake a quantitative proteomic analysis of tamoxifen-induced changes in developing skeletal muscle cells which we expect may also shed light on the effect of tamoxifen on muscle repair.
We report a tandem mass-tag (TMT) approach to tamoxifen-treated myogenesis in C2C12 cells, a well-characterized model of in vitro murine skeletal muscle differentiation. A longitudinal analysis of >10,000 proteins identified in C2C12 myogenesis revealed a novel subset of 1,239 myogenically-regulated proteins. This set of regulatory proteins clustered into five distinct longitudinal expression trends which significantly overlap those obtained in similar analyses performed in human myocytes. A longitudinal analysis of myogenesis in the presence of tamoxifen, when contrasted with a similar analysis in untreated myogenesis finds that while the vast majority of myogenically-regulated proteins were unaffected by tamoxifen treatment, specific pathways and networks are affected. We document a specific functional enrichment for adiponectin-signaling, whereby a set of 198 proteins were differentially expressed relative to controls at one or more stages of myogenesis, the majority of which were involved in steroid biosynthesis, lipid storage and/or metal ion homeostasis. Interestingly, the only protein that was differentially expressed in the tamoxifen-treated cells at every stage of myogenesis was metallothionein-1 (MT1). Elevated levels of MT1 have been correlated with tamoxifen resistance and increased patient mortality and relapse in breast cancer, as well as with cachexia and muscle atrophy in rodent models. Increased MT1 expression levels may contribute to the musculoskeletal effects reported by patients undergoing tamoxifen treatment. Finally, we present a powerful, self-validating pipeline for analyzing the total proteomic response to in vitro treatment across every stage of muscle cells development which can be easily adapted to study the effects of other drugs on myogenesis.
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