Multiple intracellular proteins and pathways

Multiple intracellular proteins and pathways refers to a non-specific classification used to describe the collective action of a drug on various cellular components rather than a single molecular entity. This concept is central to polypharmacology, where a single therapeutic agent is designed or discovered to interact with multiple receptors, enzymes, or signaling cascades simultaneously (Hopkins, A. L., Nature Chemical Biology, 2008). Such multi-target approaches are frequently employed in the treatment of complex, multifactorial diseases like cancer and metabolic disorders to overcome drug resistance and enhance efficacy (Anighoro, A., et al., Journal of Medicinal Chemistry, 2014). However, because this designation lacks molecular specificity, it often encompasses a wide range of biological functions including signal transduction, gene regulation, and metabolic flux (Ramsay, R. R., et al., Frontiers in Pharmacology, 2018). While potentially more effective than highly selective ligands in certain contexts, drugs hitting multiple pathways carry a higher risk of off-target effects and systemic toxicity due to the broad nature of their biological impact (Jalencas, X., & Mestres, J., MedChemComm, 2013). In clinical development, this classification is often a placeholder for agents whose precise molecular interactome is either unknown or intentionally broad, requiring sophisticated systems biology approaches for characterization (Peters, J. U., Journal of Medicinal Chemistry, 2013).

Other names

Multi-targetPolypharmacological targetsIntracellular signaling networksPleiotropic targets

Simultaneous modulation of multiple molecular targets or signaling pathways to achieve a synergistic therapeutic effect (Hopkins, A. L., Nature Chemical Biology, 2008).