Multiple intracellular targets

The term "Multiple intracellular targets" refers to a pharmacological profile where a therapeutic agent modulates several distinct molecular entities within the cell simultaneously. This concept is a cornerstone of polypharmacology, which suggests that hitting multiple nodes in a biological network can be more effective than targeting a single protein (Hopkins, A. L., 2008, Nature Chemical Biology). It is frequently associated with multi-kinase inhibitors used in oncology, which block various signaling pathways to prevent tumor growth and overcome resistance mechanisms. Additionally, many natural products and broad-spectrum cytotoxic drugs are classified this way because they interact with various enzymes, structural proteins, or nucleic acids (Gupta, S. C., et al., 2013, Cell Cycle). From a drug development perspective, targeting multiple intracellular components can improve efficacy in complex, multifactorial diseases like cancer or metabolic syndrome (Zheng, H., et al., 2014, Current Topics in Medicinal Chemistry). However, this lack of specificity often increases the risk of off-target effects and systemic toxicity, presenting a significant challenge for safety profiles. Because it does not represent a single, well-defined receptor or enzyme, it is not considered a valid canonical target name in structured biological databases. Instead, it serves as a placeholder or a broad category for drugs with diverse or poorly defined intracellular mechanisms.

Other names

Multi-targetPolypharmacological targetsIntracellular multi-targets

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