Is mPGES-1 a promising target for pain therapy?

Cyclooxygenase (COX) inhibitors are widely used analgesic and anti-inflammatory drugs. Owing to undesirable effects caused by unselective COX inhibitors and selective COX-2 inhibitors, microsomal prostaglandin E(2) synthase-1 has been considered as an alternative target for the development of analgesic drugs. However, recent findings question the usefulness of this terminal synthase as a promising drug target for pain therapy.