Editorial: Hormone Receptors and Breast Cancer

Breast cancer (BC) is the most commonly diagnosed cancer among women worldwide and one of the leading cause of cancer-related deaths. The majority of BCs arise from epithelial cells, either in the ducts or lobules, as the result of genetic and epigenetic alterations, which lead to aberrant growth control and disruption of intracellular signaling. Because of this, BC is considered a heterogeneous disease with multiple sub-types, with cells of distinct origin and function. In summary, these articles contribute to understanding the topic and gathering information about the molecular mechanisms that are involved in BC development and progression. A better knowledge of the mechanisms involved in the pathogenesis of BC could enable us to discovery new biomarkers for patient stratification and identify novel therapeutic targets.