Cellular structure

Cellular structure is a broad, non-specific term that encompasses the various organized components within a cell, including organelles like the nucleus and mitochondria, the cytoskeleton, and the plasma membrane (Alberts et al., 2002). In the context of drug discovery, this term is considered incorrect as a specific therapeutic target because it represents a category of components rather than a single molecular entity (Nature Reviews Drug Discovery, 2018). While many drugs exert their effects by interacting with specific molecules within these structures—such as taxanes binding to tubulin in microtubules or polyene antifungals targeting the fungal cell membrane—the structures themselves are too diverse to be classified as a single target (Jordan & Wilson, 2004; NIH PubChem). Because these structures are fundamental to the survival of all eukaryotic cells, therapeutic agents that target them must achieve high selectivity for diseased cells or pathogens to avoid significant systemic toxicity (StatPearls, 2023). Consequently, for biotech analysis, it is necessary to identify the specific protein, enzyme, or receptor within a cellular structure that is being modulated. This broad classification often leads to challenges in defining a clear mechanism of action or identifying specific biomarkers for patient stratification.

Other names

Cellular structuresOrganellesSubcellular structuresCytoskeletal componentsCellular compartments

Disruption of structural assembly (e.g., microtubule polymerization), alteration of membrane permeability, or interference with organelle-specific functions.