ErbB2

ErbB2, also known as HER2, is a gene that makes a protein involved in cell growth and division. In some cancers, especially breast cancer, this gene is overly active or amplified, leading to excessive, uncontrolled cell growth. This overexpression can contribute to more aggressive tumors. Understanding ErbB2's role helps in diagnosing certain cancers and developing targeted therapies that block its activity, thereby slowing or stopping cancer progression. It’s a key marker and target in personalized cancer treatment strategies.