transsellulaarinen

Transsellulaarinen refers to a process or pathway that occurs across or through cells. This term is commonly used in biology and medicine to describe the movement of substances from one side of a cellular layer to the other. For example, in the context of drug absorption, transcellular absorption describes how a drug moves directly through the lipid bilayer of a cell's membrane. This contrasts with paracellular transport, which occurs in the spaces between cells. Many biological barriers, such as the intestinal lining or the blood-brain barrier, utilize transcellular transport mechanisms to regulate the passage of essential nutrients, waste products, and therapeutic agents. The efficiency and mechanism of transcellular transport can be influenced by various factors, including the chemical properties of the substance being transported, the specific cell types involved, and the presence of specialized transport proteins. Understanding transcellular pathways is crucial for developing effective drug delivery systems and for comprehending physiological processes within the body.