Cellular and tissue structures

The term Cellular and tissue structures refers to the physical and organizational components of biological systems, including organelles, the cytoskeleton, and the extracellular matrix (Alberts et al., Molecular Biology of the Cell, 2014). While these structures provide the framework for life and are often the site of drug action, the term itself is a broad morphological classification rather than a specific molecular target. In pharmacology, a therapeutic target is typically defined as a discrete molecular entity, such as a protein or nucleic acid, that can be selectively modulated by a drug to produce a therapeutic effect (Overington et al., Nature Reviews Drug Discovery, 2006). Because this term encompasses thousands of different proteins and complexes, it lacks the specificity required for drug-target interaction modeling or clinical annotation. It is generally used in pathology and histology to describe the macroscopic or microscopic appearance of biological samples rather than to identify a specific point of therapeutic intervention (StatPearls, Histology, Cytology, 2023). Consequently, this entry is considered incorrect as a canonical therapeutic target.

Other names

Cellular componentsTissue architectureSubcellular organellesBiological structures

Not applicable as this is a broad morphological category rather than a specific molecular target.