autacoid

noun

Meaning

A substance produced by cells that acts locally to regulate the function of nearby cells, often referred to as a local hormone.

Examples

  • Histamine is a classic example of an autacoid that mediates inflammatory responses.
  • Prostaglandins function as autacoids to modulate pain and blood flow in specific tissues.

Synonyms: local hormone, paracrine agent, signaling molecule, autacoid substance