Galectin-3 is a type of protein found in various cells throughout the body. It plays a crucial role in many biological processes, including cell growth, inflammation, and immune response. This protein can bind to specific carbohydrates, which helps it interact with other molecules and cells. Research has shown that Galectin-3 is involved in several diseases, including cancer and heart disease. Elevated levels of this protein can indicate certain health issues, making it a potential biomarker for diagnosis and treatment monitoring. Understanding Galectin-3 may lead to new therapeutic strategies in managing these conditions.