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Accession IconE-MEXP-401

Transcription profiling of mouse myoblast samples treated with a panel of compounds known to affect cellular differentiation or its reversal

Organism Icon Mus musculus
Sample Icon 16 Downloadable Samples
Technology Badge Icon Affymetrix Murine Genome U74A Version 2 Array (mgu74av2)

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A Single Cell Analysis of Myogenic Dedifferentiation Induced by Small Molecules An important direction in chemical biology is the derivation of compounds that affect cellular differentiation or its reversal. The fragmentation of multinucleate myofibers into viable mononucleates (called cellularisation) occurs during limb regeneration in urodele amphibians and the isolation of myoseverin, a tri-substituted purine that could apparently activate this pathway of myogenic dedifferentiation in mammalian cells, generated considerable interest. We have explored the mechanism and outcome of cellularisation at a single cell level, and report findings that significantly extend the previous work with myoseverin. Using a panel of compounds, including a novel triazine compound called 109 with structural similarity and comparable activity to myoseverin, we have identified microtubule disruption as critical for activation of the response. Our analysis has included the related control triazine compound 401, and the microtubule disrupting agent nocodazole. Time-lapse microscopy has enabled us to analyse the fate of identified mononucleate progeny, and directly assess the extent of dedifferentiation.
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