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Cellular Communication Signaling

Meaning

Cellular Communication Signaling encompasses the complex network of molecular processes through which cells perceive and respond to external stimuli and internal cues, coordinating physiological functions across tissues and organs. This fundamental biological process involves the transmission of signals via chemical messengers, including hormones, neurotransmitters, and cytokines, which bind to specific cellular receptors. Proper signaling fidelity is essential for maintaining tissue homeostasis, regulating growth, mediating immune responses, and ensuring metabolic coordination. Dysfunction in these pathways, often termed “signaling noise,” is a hallmark of chronic disease and age-related decline, including hormonal resistance states.