Caveolin-1 is a protein that plays a crucial role in the formation of small invaginations in the cell membrane known as caveolae. These structures are involved in various cellular processes, including endocytosis, signal transduction, and lipid regulation. Caveolin-1 is primarily found in adipocytes (fat cells) and endothelial cells, where it helps maintain cellular structure and function. Additionally, Caveolin-1 is important for cellular communication and can influence the behavior of various signaling pathways. Abnormal levels of Caveolin-1 have been linked to several diseases, including cancer and cardiovascular disorders, highlighting its significance in maintaining cellular health and homeostasis.