Cellular membranes and tumor vasculature

Cellular membranes and tumor vasculature represent broad physiological compartments rather than specific molecular targets. The tumor vasculature consists of the irregular, leaky blood vessels that supply oxygen and nutrients to a growing tumor, while cellular membranes are the lipid bilayers that define the boundaries of all cells. In oncology, these structures are targeted by various therapeutic strategies, including vascular disrupting agents (VDAs) that collapse existing tumor vessels and photodynamic therapies that generate reactive oxygen species to damage membranes and endothelial linings. Because this term encompasses a wide array of proteins, lipids, and cell types, it is generally considered a therapeutic site or microenvironmental component rather than a single druggable receptor or enzyme.

Other names

Tumor microenvironmentTumor blood vesselsCellular lipid bilayer

Drugs targeting these structures typically act via vascular disruption, induction of oxidative stress through photodynamic therapy, or physical disruption of membrane integrity.