Cellular Membranes and Nucleic Acids

Cellular membranes and nucleic acids represent fundamental structural and functional components of all living cells that serve as critical targets for various therapeutic agents. Cellular membranes, primarily composed of lipid bilayers, maintain cellular integrity and regulate the transport of molecules, while nucleic acids (DNA and RNA) store and transmit genetic information necessary for life. Drugs targeting membranes, such as certain polyene antifungals, work by altering membrane permeability or causing physical disruption [1][2]. Conversely, drugs targeting nucleic acids, including many chemotherapeutic agents and modern antisense oligonucleotides, function by binding to, modifying, or inhibiting the replication and transcription of genetic material [3][4]. Because these structures are ubiquitous, therapeutic strategies often face challenges regarding selectivity and off-target toxicity [5]. These targets are central to the treatment of infectious diseases, cancers, and genetic disorders.

Other names

Biological membranesDeoxyribonucleic acidRibonucleic acidLipid bilayerGenomic DNACellular RNA

Drugs targeting these structures act through diverse mechanisms including physical disruption of the lipid bilayer, formation of trans-membrane pores, covalent DNA cross-linking, intercalation between base pairs, and sequence-specific binding to RNA to modulate splicing or translation [1][3][4].