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EGR4-S expression is regulated by HER- pathway targeted drug treatment. (A) Western blot analysis of HER2+ cell lysates treated for 24 h with increasing concentrations of TKI drugs (lapatinib, erlotinib) and (B) performed on indicated cell lysates treated over 24–48 h. (C) Western blot analysis of MDA-MB-468 breast cancer cell lysates treated with increasing concentrations of TKI drugs for 24 h (lapatinib, gefitinib, erlotinib).
