Estrogen Receptors

Estrogen receptors are proteins found inside or on the surface of certain cells, primarily in reproductive tissues, that specifically bind to the hormone estrogen. When estrogen attaches to these receptors, it triggers changes in gene activity, affecting cell growth, development, and function. These receptors play a key role in regulating menstrual cycles, bone density, and other bodily processes. They are also important in some breast cancers, where their presence can influence treatment options. Overall, estrogen receptors act as biological switches, translating estrogen signals into specific cellular responses.