Figure 1

Immunoblots of ER-α, (a) ER-β, (b) AR, (c) and DAX-1 (d) in human breast. Relative molecular masses are shown at the left. Each blot is representative of its respective group. For all panels: lane 1, benign breast disease; lane 2, in situ carcinoma; lane 3, infiltrative ductal carcinoma; lane 4, infiltrative lobular carcinoma.