Cell signaling is the complex process by which cells perceive and respond to their environment. It is essential for homeostasis, growth, and immune responses.
The signal finally triggers a specific cellular activity, such as gene expression or enzyme activation. Types of Signaling: Autocrine: A cell targets itself. signaling
Long-distance signaling via the bloodstream (e.g., hormones). Cell signaling is the complex process by which
A signaling molecule (ligand) binds to a specific receptor on the cell surface or inside the cell. signaling
Common transducers include G-protein coupled receptors (GPCRs) , which use secondary messengers like cyclic AMP (cAMP) to amplify signals. 2. Signaling Theory (Economics & Management) Signaling Theory: A Review and Assessment - Sage Journals
Signaling between cells in physical contact.
Nearby cells are targeted (e.g., neurotransmitters).