Tumor Microenvironment-Mediated Resistance in HER2-Positive Breast Cancer: Recent Advances and Therapeutic Challenges
: Human epidermal growth factor receptor 2 (HER2)-positive breast cancer is associated with aggressive disease and poor prognosis. Despite advances in HER2-targeted therapies, resistance remains a major clinical challenge. This review focuses on the mechanisms of resistance to HER2-targeted therapies, with particular e...