Skip to main content

Molecular Signaling

Meaning

The complex, precise process by which cells detect, interpret, and respond to external stimuli and internal cues through a sequence of biochemical reactions involving specific messenger molecules. This intricate communication network governs virtually all fundamental cellular activities, including growth, differentiation, metabolism, and programmed cell death, ensuring that tissues and organ systems function in a coordinated and homeostatic manner. It is the fundamental molecular language of human physiology and the basis of all hormonal action.