ER is the estrogen receptor and PR is the progesterone receptor, and they are the two hormone receptors that are closely associated with breast cancer.
ER and PR are proteins with specific functions that have significance: 1. Estimating the prognosis of breast cancer. ER-positive individuals have a low recurrence rate and a high survival rate. PR-positive breast cancers have a 3.6-fold lower recurrence rate than negative individuals.
2. It helps to rationalize the comprehensive treatment plan. The treatment of breast cancer is better than that of other cancers, and the 5-year survival rate for patients detected by screening can be about 80%.