Transcriptomic analysis of myogenesis in human myoblasts
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE181258 | GEO | 2022/06/14
REPOSITORIES: GEO
Similar Datasets
Project description:The goals of this study are to compare differentially expressed RNAs during OIP5-AS1:MIR-7 TSB treated myoblasts and control myoblasts during myogenesis and further investigate functional regulatory network of those RNAs in myogenesis in vitro and in vivo.
2022-06-14 | GSE202752 | GEO
Project description:Transcriptomic analysis of myogenesis in human myoblasts
| PRJNA751230 | ENA
Project description:The majority of cell surface and secreted proteins are modified by glycans and this glycosylation process plays an important role in the development of multicellular organisms. These glycan modifications enable communication between cells and the extracellular matrix via interactions with specific glycan-binding lectins and the regulation of receptor-mediated signalling. Glycosylation plays an important role in myogenesis and the development of muscle tissue but our molecular understanding of the precise glycans, catalytic enzymes and lectins involved remain only partially understood. Here, we quantified dynamic remodeling of the membrane-associated proteome during in vitro myogenesis. We observed wide-spread changes in the abundance of several receptors and important enzymes regulating glycosylation. Quantification of released N-linked glycans via glycomic analysis confirmed remodeling of the glycome with a switch in sialic acid linkages, and changes in di-galactosylation and paucimannosylation. Quantitative glycoproteomic analysis with stable isotope labelling, enrichment of glycopeptides and analysis via multiple fragmentation approaches identified precise glycoproteins containing these regulated glycans including integrins and growth factor receptors. Myogenesis was also associated with the regulation of several lectins including the up-regulation of Galectin-1 (LGALS1). CRISPR/Cas9-mediated deletion of Lgals1 inhibited differentiation and myotube formation suggesting an early defect in the myogenic program. We also observed similar changes in N-glycosylation and the up-regulation of LGALS1 during postnatal skeletal muscle development in mice. Finally, treatment of new-born mice with recombinant adeno-associated viruses to express LGALS1 in the musculature resulted in enhanced muscle mass. Our data will be a valuable resource to further understand the role of glycosylation and lectins on myogenesis and may aid in the development of intervention strategies aimed at promoting healthy muscle.
2021-01-29 | PXD021006 | Pride
Project description:We performed total transcriptome analysis by RNA-seq to find novel long non-coding RNAs which are differentiatlly expressed in myogenesis or osteogenesis.
2018-09-18 | GSE120044 | GEO
Project description:Analysis of Early Myogenesis Reveals an Extensive Set of Transcriptional Regulators Whose Knock-down Can Inhibit Differentiation Myogenesis is a tightly controlled process involving the transcriptional activation and repression of thousands of genes. Although many components of the transcriptional network are known for the later phases of myogenesis, relatively little work has described the transcriptional landscape within the first 24 hours, when myoblasts commit to differentiate. Through dense temporal sampling of differentiating C2C12 myoblasts, we identify 266 transcriptional regulators (TRs) whose expression is altered within the first 12 hours of myogenesis. A high-content shRNA screen of 76 TRs involving 427 stable lines identified 48 genes whose knockdown significantly inhibits differentiation of C2C12 myoblasts. These include known regulators of myogenesis (Myod1, Myog and Myf5), as well as 26 regulators not previously associated with the process. Of the TRs differentially expressed within the first 24 hours, two-thirds inhibited differentiation when knocked down. Surprisingly, a similar proportion (67%) of shRNAs targeting TRs whose expression did not change during differentiation also inhibited myogenesis, suggesting that both stably and differentially expressed TRs are essential for this complex differentiation program. This implies that microarray-based approaches that concentrate functional validation studies on differentially-expressed genes will fail to identify many genes that are critically implicated in complex biological processes.
2012-03-21 | GSE16992 | GEO
Project description:Myogenesis is a tightly controlled process involving the transcriptional activation and repression of thousands of genes. Although many components of the transcriptional network are known for the later phases of myogenesis, relatively little work has described the transcriptional landscape within the first 24 hours, when myoblasts commit to differentiate. Through dense temporal sampling of differentiating C2C12 myoblasts, we identify 266 transcriptional regulators (TRs) whose expression is altered within the first 12 hours of myogenesis. A high-content shRNA screen of 76 TRs involving 427 stable lines identified 48 genes whose knockdown significantly inhibits differentiation of C2C12 myoblasts. These include known regulators of myogenesis (Myod1, Myog and Myf5), as well as 26 regulators not previously associated with the process. Of the TRs differentially expressed within the first 24 hours, two-thirds inhibited differentiation when knocked down. Surprisingly, a similar proportion (67%) of shRNAs targeting TRs whose expression did not change during differentiation also inhibited myogenesis, suggesting that both stably and differentially expressed TRs are essential for this complex differentiation program. This implies that microarray-based approaches that concentrate functional validation studies on differentially-expressed genes will fail to identify many genes that are critically implicated in complex biological processes.
2012-03-21 | GSE17038 | GEO
Project description:Analysis of Early Myogenesis Reveals an Extensive Set of Transcriptional Regulators Whose Knock-down Can Inhibit Differentiation Myogenesis is a tightly controlled process involving the transcriptional activation and repression of thousands of genes. Although many components of the transcriptional network are known for the later phases of myogenesis, relatively little work has described the transcriptional landscape within the first 24 hours, when myoblasts commit to differentiate. Through dense temporal sampling of differentiating C2C12 myoblasts, we identify 266 transcriptional regulators (TRs) whose expression is altered within the first 12 hours of myogenesis. A high-content shRNA screen of 76 TRs involving 427 stable lines identified 48 genes whose knockdown significantly inhibits differentiation of C2C12 myoblasts. These include known regulators of myogenesis (Myod1, Myog and Myf5), as well as 26 regulators not previously associated with the process. Of the TRs differentially expressed within the first 24 hours, two-thirds inhibited differentiation when knocked down. Surprisingly, a similar proportion (67%) of shRNAs targeting TRs whose expression did not change during differentiation also inhibited myogenesis, suggesting that both stably and differentially expressed TRs are essential for this complex differentiation program. This implies that microarray-based approaches that concentrate functional validation studies on differentially-expressed genes will fail to identify many genes that are critically implicated in complex biological processes. C2C12 myoblasts were differentiated into myotubes and sampled at various time points for gene expression measurement on MOE-430v2 chips. Cells grown in separate plates were harvested at 14 different time points: t_-24h, t_0h, t_0.5h, t_1h, t_1.5h, t_2h, t_3h, t_6h, t_9h, t_12h, t_24h, t_48h, t_96h, t_144h. Cells were also pre-treated with 50uM cycloheximide 1 hour prior to inducing differentiation and harvested at two time points: t_chx_1h, t_chx_3h. All harvests were performed in triplicate using growths from successive passages.
2012-03-21 | E-GEOD-16992 | biostudies-arrayexpress
Project description:Myogenesis is a tightly controlled process involving the transcriptional activation and repression of thousands of genes. Although many components of the transcriptional network are known for the later phases of myogenesis, relatively little work has described the transcriptional landscape within the first 24 hours, when myoblasts commit to differentiate. Through dense temporal sampling of differentiating C2C12 myoblasts, we identify 266 transcriptional regulators (TRs) whose expression is altered within the first 12 hours of myogenesis. A high-content shRNA screen of 76 TRs involving 427 stable lines identified 48 genes whose knockdown significantly inhibits differentiation of C2C12 myoblasts. These include known regulators of myogenesis (Myod1, Myog and Myf5), as well as 26 regulators not previously associated with the process. Of the TRs differentially expressed within the first 24 hours, two-thirds inhibited differentiation when knocked down. Surprisingly, a similar proportion (67%) of shRNAs targeting TRs whose expression did not change during differentiation also inhibited myogenesis, suggesting that both stably and differentially expressed TRs are essential for this complex differentiation program. This implies that microarray-based approaches that concentrate functional validation studies on differentially-expressed genes will fail to identify many genes that are critically implicated in complex biological processes. C2C12 myoblasts were differentiated into myotubes and sampled at various timepoints for gene expression measurement on Illumina Mouse WG-6v1.1 arrays. Cells grown in separate plates were harvested at 12 different timepoints: t_0h, t_1h, t_1.5h, t_2h, t_3h, t_6h, t_9h, t_12h, t_24h, t_48h, t_96h, t_144h. All harvests were performed in triplicate using growths from successive passages.
2012-03-21 | E-GEOD-17038 | biostudies-arrayexpress
Project description:During muscle differentiation, myogenesis sepcific genes are differentially regulated, including Lamins that function at least in maintenance of nuclear architecture and regulation of gene expression. We used microarrays to detail the global changes of gene expression in lamins and nuclear envelope assoicated proteins during myogenesis. Keywords: comparative, myogenesis
2006-04-30 | GSE4694 | GEO
Project description:Myogenesis is governed by signalling networks whose regulations are tightly controlled in a time-dependent manner. While different protein kinases have been identified to regulate various aspects of myogenesis, knowledge on the global signalling networks and their downstream substrates during myogenesis remains incomplete. Here, we map the myogenic differentiation of C2C12 cells using mass spectrometry (MS)-based phosphoproteomics and proteomics. From these data, we infer global kinase activity and predict substrates of key kinases that are involved in myogenesis. We found that multiple mitogen-activated protein kinases (MAPKs) mark the initial wave of signalling cascades. Further phosphoproteomic and proteomic profiling with MAPK1/3 and MAPK8/9 specific inhibitions unveil their shared and distinctive roles on myogenesis.
2022-05-31 | PXD028713 | Pride