In a cancerous breast, researchers have seen the problems with the various components of breast tissue and could not fully explain why they happened. The tissue, called the stroma, includes fat cells that provide padding; fibroblasts, which make the framework for tissue; pericytes in blood vessels, which are contractile cells that help regulate blood pressure; as well as myoepithelial cells comprising the outer layer of … Continue reading Human study identifies new gene as cause and early indicator of breast cancer.