| Abstract: | Paraffin-embedded materials from 104 patients with breast cancer were assayed for the expression of estrogen receptor (ER), progesterone receptor (PR) and androgen receptor (AR) with avidin-biotin complex method. A significant positive correlation was found between SR status and cell differentiation or lymph node status. Tumors with elastosis tend to contain ER, PR and AR more frequently. Patients with positive ER, PR or AR tumors were 1.2 to 2.6 times more likely to survive than those with negative ones. The five-year survival rate increased with the increase of number and amount of positive SR. These results indicate that ER, PR and AR detected by ABC method may be used as biomarkers for tumor differentiation and have prognostic values in breast cancer. |
