Cell signalling

Cell signalling, also known as cellular signaling or signal transduction, refers to the process by which cells communicate and coordinate their activities in response to internal or external cues. It involves the transmission of signals from the cell surface or the extracellular environment to the interior of the cell, leading to specific cellular responses.

Cell signaling is crucial for the regulation of various cellular processes, including growth, development, metabolism, differentiation, and immune responses. It ensures that cells can respond appropriately to changes in their environment and maintain homeostasis.

see Signaling pathway.