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Figure 1 | Breast Cancer Research

Figure 1

From: Phosphorylation of estrogen receptor α serine 167 is predictive of response to endocrine therapy and increases postrelapse survival in metastatic breast cancer

Figure 1

Immunoblot analysis of phosphorylated estrogen receptor (ER)-α Ser118 and ER-α Ser167. (a) Transfected COS-7 cells were grown in serum- and estrogen-deprived conditions and treated with vehicle (medium) (lane 1), 17β-estradiol (E2) (lane 2), epidermal growth factor (EGF) (lane 3), or E2 and EGF (lane 4) for 30 min. Equal amounts of total protein from whole cell lysates were blotted for either anti-ER-α-phosphoserine (α-pS118 and α-pS167) and anti-ER-α (α-ER-α) antibodies. (b) T47D cells were grown in serum- and estrogen-deprived conditions and treated with vehicle (medium) (lane 1), 17β-estradiol (E2) for 10 min (lane 2) and 30 min (lane 3), EGF for 10 min (lane 4) and 30 min (lane 5), or E2 and EGF for 10 min (lane 6) and 30 min (lane 7). Equal amounts of total protein from whole cell lysates were blotted for either anti-ER-α-phosphoserine (α-pS118 and α-pS167) and anti-ER-α (α-ER-α) antibodies.

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