Growing source of evidence suggests that exposure to estrogen mimicking agents is a risk factor for breast cancer onset and progression. Long chain alkylphenols are man-made compounds still present in household products, industrial and agricultural processes, leading to a global environmental and human contamination. These molecules are known to exert estrogen-like activities through binding to classical estrogen receptors. Recently, we have demonstrated that a realistic mixture of 4-tert-octylphenol and 4-nonylphenol can stimulate proliferation and modulate epigenetic status of testicular cancer germ cells through a rapid, Estrogen Receptor alpha 36 (ER)- dependent non genomic pathway. Since high ERα36 expression enhances expression of migration/invasion markers in breast tumors, we addressed the question of its involvement in response to alkylphenol exposure in MCF10A mammary epithelial cell lineand MCF7 estrogen-sensitive cancer cells. ERα36 overexpression or gene-silencing strategies combined to microarray analyses of the mixture target genes were used in MCF10A and MCF7 cells in order to characterize the molecular phenotype of exposed cells. A customized database was designed to analyze comprehensive gene expression results, nonlinear correlation analyses, and mutual information computations helpful for the modeling of alkylphenol/ERα36-dependent pathways. Our results highlight a key role for ER in alkylphenol non genomic src protein kinase /PI3-kinase/serine-threonine kinase Akt/ nuclear factor-kappa B signaling in non cancerous epithelial breast cells. Hence, alkylphenol and/or ER-dependent control of the proliferation, adhesion and survival pathway opens the way for understanding the link between endocrine disruptor exposure and the burden of hormone sensitive cancers.