Cellular membranes and macromolecules

Cellular membranes and macromolecules refers to the fundamental structural and functional components of a cell, including the lipid bilayer and large biopolymers such as DNA, RNA, and proteins (StatPearls, 2023). This term is generally considered too broad to be a single therapeutic target, as drug discovery typically focuses on specific molecular entities like receptors or enzymes (IUPHAR/BPS Guide to Pharmacology). However, several classes of drugs exert their effects by interacting with these broad structures; for example, polyene antifungals like Amphotericin B disrupt fungal cell membranes by binding to ergosterol, while alkylating agents like cyclophosphamide covalently modify DNA macromolecules to inhibit cancer cell division (NIH National Cancer Institute). Because these components are ubiquitous across various cell types, therapeutic strategies targeting them often encounter significant safety concerns related to a lack of specificity and potential systemic toxicity. Consequently, this entry is classified as incorrect for structured target databases due to its lack of molecular specificity.

Other names

Biological membranesCellular biopolymersPlasma membrane and intracellular macromoleculesCellular structural components

Drugs targeting these structures typically act through physical disruption of lipid bilayers, covalent modification of nucleic acids, or non-specific binding to large polymers to alter their physiological function.