Schematic Representation of Potential PELP1/MNAR Autocrine Signaling Loop in Breast Cancer Cells
Growth factor signaling and/or activation of nongenomic signaling pathways promote ER coactivator PELP1 to form a complex with ERRα and PNRC2, leading to activation of aromatase expression promoting formation of a positive feedback loop locally synthesizing E2, resulting in the activation of E2-ER-PELP1 signaling in breast cancer cells.