Phospholipases

LY315920 (Varespladib) is an inhibitor of the IIa, V, and X isoforms of secretory phospholipase A2 (sPLA2).

SPK-601 (LMV-601) is an inhibitor of the phosphatidylcholine-specific phospholipase C (PC-PLC). SPK-601 also can be used as an antimicrobial agent.

Lp-PLA2 -IN-1 inhibit Lp-PLA2 activity, processes for their preparation, to compositions containing them and to their use in the treatment of diseases associated with the activity of Lp-PLA2, for example atherosclerosis, Alzheimer's disease.

ML349 is a potent and specific acyl protein thioesterase 2 (APT-2) inhibitor with a Ki of 120 nM. ML349 is also an inhibitor of LYPLA2 with an IC50 of 144 nM.

Isoforms of phospholipase D (PLD) cleave the head group from phospholipids, releasing the second messenger phosphatidic acid (PA), which can produce changes in Ras activation, cell spreading, stress fiber formation, chemotaxis, and membrane vesicle trafficking. FIPI is a derivative of halopemide which potently inhibits both PLD1 (IC50 = 25 nM) and PLD2 (IC50 = 20 nM).

Darapladib is a reversible lipoprotein-associated phospholipase A2 (Lp-PLA2) inhibitor .

Difluprednate(Durezol) is a corticosteroid, approved difluprednate for the treatment of post-operative ocular inflammation and pain.

ST271 is a potent inhibitor of protein tyrosine kinase (PTK), inhibits phospholipase D activation stimulated by fMet-Leu-Phe and PAF, with IC50s of 6.7 and 9 μM, respectively.