New Research Explains Link Between Type 2 Diabetes and Breast Cancer Scientists at Boston University have uncovered why individuals with type 2 diabetes often experience more aggressive forms of breast cancer. The study revealed that particles in the blood called exosomes, which are altered by diabetes, can weaken immune cells inside breast tumors. This immune suppression allows cancer to grow and spread more easily, shedding light on why treatments such as immunotherapy are often less effective for diabetic patients . Using advanced tumor models known as patient-derived organoids, researchers demonstrated how diabetes-related changes in the blood influence tumor behavior. This breakthrough not only strengthens the evidence linking type 2 diabetes to breast cancer but also highlights the urgent need for personalized treatment approaches. With millions living with diabetes worldwide, the findings could pave the way for improved therapies and better outcomes for cancer patients with metabolic conditions