Transcription profiling of human MCF7 cells treated with ErbB receptor ligands EGF and heregulin at multiple doses and sampled at multiple time points reveals signal transduction pathways devotedly convey quantitative properties of the dose-dependent activation of ErbB receptor to early transcription

ABSTRACT: ErbB receptor ligands, epidermal growth factor (EGF) and heregulin (HRG), induce dose-dependent transient and sustained intracellular signaling, proliferation and differentiation of MCF-7 breast cancer cells, respectively. In an effort to delineate the ligand-specific cell determination mechanism, we investigated time-course gene expressions induced by EGF and HRG that induce distinct cellular phenotypes in MCF-7 cells. To analyze the effects of ligand dosage and time for the gene expression independently, we developed a statistical method for decomposing the expression profiles into the two effects. Our results indicated that signal transduction pathways devotedly convey quantitative properties of the dose-dependent activation of ErbB receptor to early transcription. The results also impl

ORGANISM(S): Homo sapiens

SUBMITTER: Mariko Hatakeyama 

PROVIDER: E-GEOD-6462 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress