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Cellular Signaling Networks

Meaning

Cellular Signaling Networks represent the intricate, interconnected systems of molecular communication that govern all cellular activities and responses to external and internal stimuli. These networks involve cascades of protein interactions, enzyme activations, and gene expression changes initiated by signals like hormones, growth factors, or neurotransmitters. They are the operational infrastructure through which the endocrine system exerts its systemic control, translating a single hormonal message into a complex, coordinated cellular behavior. The proper function of these networks is essential for tissue homeostasis and adaptation.