Identification of a Distinct Class of Cytoskeleton-Associated mRNAs Using Microarray Technology
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CitationBrock, Amy, Sui Huang, and Donald E Ingber. 2003. Identification of a distinct class of cytoskeleton-associated mRNAs using microarray technology. BMC Cell Biology 4:6.
AbstractBackground: Interactions between mRNA and the cytoskeleton are critical for the localization of a number of transcripts in eukaryotic somatic cells. To characterize additional transcripts that may be subject to this form of regulation, we developed a two-step approach that utilizes biochemical fractionation of cells to isolate transcripts from different subcellular compartments followed by microarray analysis to examine and compare these subpopulations of transcripts in a massively-parallel manner. Results: Using this approach, mRNA was extracted from the cytoskeleton-rich and the cytosolic fractions of the promyelocytic HL-60 cell line. We identify a subset of 22 transcripts that are significantly enriched in the cytoskeleton-associated population. The majority of these encode structural proteins and/or proteins known to interact with elements of the cytoskeleton. Localization required an intact actin cytoskeleton and was largely conserved upon differentiation of precursor HL-60 cells to a macrophage-like phenotype. Conclusions: We conclude that the association of transcripts with the actin cytoskeleton in somatic cells may be a critical post-transcriptional regulatory event that controls a larger class of genes than has previously been recognized.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:4460825
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