Prostaglandin EP4 receptor

Prostaglandin EP4 receptor (also known as EP4) is a protein that in humans is encoded by the PTGER4 gene. It is one of the four receptors for prostaglandins, specifically for prostaglandin E2 (PGE2). This receptor belongs to the family of G-protein coupled receptors, which are characterized by seven transmembrane domains.

Function

The Prostaglandin EP4 receptor is involved in a variety of physiological and pathological processes. It plays a crucial role in inflammation and pain perception. Activation of EP4 by PGE2 results in an increase in intracellular cAMP levels via the activation of adenylyl cyclase. This leads to a series of intracellular events that result in the modulation of immune and inflammatory responses.

Clinical significance

The Prostaglandin EP4 receptor has been implicated in a variety of diseases including rheumatoid arthritis, cancer, and cardiovascular disease. In rheumatoid arthritis, EP4 antagonists have been shown to reduce inflammation and pain. In cancer, EP4 has been found to promote tumor growth and metastasis. In cardiovascular disease, EP4 activation has been associated with platelet aggregation and vasoconstriction.

Pharmacology

Several drugs that target the Prostaglandin EP4 receptor are currently in development. These include both agonists, which activate the receptor, and antagonists, which block its activity. These drugs have the potential to treat a variety of conditions, from inflammation and pain to cancer and cardiovascular disease.

See also

• Prostaglandin receptors
• G protein-coupled receptor
• Prostaglandin E2

References

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