Skip to main content

Cellular Signaling Molecules

Meaning

Cellular Signaling Molecules are endogenous substances that facilitate communication between cells or between a cell and its external environment, relaying specific instructions or modulating cellular responses. These molecules encompass a broad spectrum including hormones, neurotransmitters, cytokines, and growth factors, acting as crucial messengers in physiological regulation. Their precise interaction with target cell receptors dictates subsequent intracellular events.