BIO 473
CELL RECEPTORS
4. WEEK
Types of Cell Signaling
• Endocrine Signaling
acts over long distances within the organism, via hormones…
Types of Cell Signaling
• Paracrine Signaling
acts over very short distances,
via neurotransmitters and cytokines
Types of Cell Signaling
• Autocrine Signaling
cells release ligands that bind to their own surface receptors, via growth factors
Types of Cell Signaling
• Synaptic Signaling
cells release ligands that bind to their own surface receptors,
via neurotransmitters
Types of Cell Signaling
• Juxtacrine Signaling
Signal molecule located on surface of signaling cells or on extracellular matrix
Types of Cell Signaling
• Gap Junctions
Open channels through the plasma membrane