What is vesicle trafficking?

Vesicle trafficking is the process by which small membrane-bound sacs, or vesicles, transport molecules within and between cells. This dynamic system involves the budding, movement, and fusion of vesicles to deliver proteins, lipids, and other cargo to specific locations, such as organelles or the cell membrane. It plays a crucial role in cellular functions like secretion, endocytosis, and maintaining cellular organization. Proper vesicle trafficking is essential for cell communication and homeostasis, and its dysregulation can lead to various diseases.