Endogenous signaling pathways

Endogenous signaling pathways are the intrinsic biochemical networks that allow cells to receive, process, and respond to internal and environmental stimuli. These pathways involve a complex series of molecular interactions, typically initiated by the binding of ligands to receptors, which then trigger intracellular cascades involving secondary messengers, kinases, and transcription factors (Nature Education, 2014). They are fundamental to maintaining physiological homeostasis and regulating critical cellular activities such as growth, differentiation, and survival. Dysregulation of these pathways is a primary driver of various human diseases, including the uncontrolled cell proliferation seen in cancer and the chronic activation of immune responses in inflammatory disorders (NIH, 2023). While these pathways are the foundation of modern drug discovery, the term itself represents a broad biological concept rather than a discrete, druggable molecular entity. Effective therapeutic intervention requires the identification and targeting of specific nodes within these pathways to ensure efficacy and minimize systemic toxicity.

Other names

Cellular signaling pathwaysSignal transduction pathwaysIntracellular signaling cascadesBiological signaling networks

Not applicable as this refers to a broad biological category of processes rather than a specific molecular target.