Transcriptomics

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Translation State Array Analysis of LPS Stimulated Human Endothelial Cells


ABSTRACT: Confluent human umbilical vein endothelial cells (HUVECs) were exposed to LPS (1 micg/mL) for 2 hours. Ribosomal profiling via gradient centrifugation and fractionation was used to separate monosome, or under-translated, and polysome, or actively-translated, mRNA species that were then used to probe cDNA arrays, a process known as Translation State Array Analysis (TSAA). Four samples were obtained from these experiments: control monosome, control polysome, LPS monosome and LPS polysome. using the normalized signal intensities from the GeneFilters, we calculated a translation index, or measure of movement of an mRNA molecule from the monosome to the polysome fraction upon stimulation. This calculation was made as follows: (LPS polysome/LPS monosome)/(control polysome/control monosome). Translational indices greater than 2.5 (upregulated) or lower than 0.4 (downregulated) were chosen for further study. Keywords: Translation State Array Analysis

ORGANISM(S): Homo sapiens

PROVIDER: GSE5352 | GEO | 2006/07/27

SECONDARY ACCESSION(S): PRJNA104313

REPOSITORIES: GEO

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