The Research Progress of Phytoestrogen and Estrogen Receptorβin Breast Cancer

Phytoestrogens (PEs) and estrogen receptorβ(ERβ) have close relationship with breast cancer. PEs preferentially binds to ERβ rather than ERa. Although there are still some arguments, it provides a new though for researching the mechanism of Phytoestrogen-containing herbs on breast cancer and exploring the essence of TCM theory. Key words: Phytoestrogen-containing Herbs;  Estrogen receptor beta;  Breast cancer