PDE

K-Ras-PDEδ-IN-1 is a potent inhibitor of competitive K-Ras-PDEδ that binds to the farnesyl binding pocket of PDEδ (Kd of 8 nM).

Theophylline (1,3-Dimethylxanthine) is a methyl xanthine derivative from tea with diuretic, smooth muscle relaxant, bronchial dilation, cardiac, and central nervous system stimulant activities. It inhibits the 3', 5'-cyclic nucleotide phosphodiesterase that degrades cyclic AMP, thus potentiating the actions of agents that act through adenylyl cyclases and cyclic AMP.

Sulmazole (AR-L 115-BS) is a small molecule Sulmazole is a small molecule cGMP-PDE inhibitor.Sulmazole is a competitive inhibitor of A1 adenosine receptors.Sulmazole has been shown to improve cardiac index, low pulmonary capillary wedge pressure, and can be used in the study of heart failure.Sulmazole is a small molecule cGMP-PDE inhibitor.

Nanterinone (UK 61260), an orally available partial phosphodiesterase inhibitor, is a novel positive inotropic and balanced vasodilator compound.Nanterinone, when administered orally, results in significant improvements in acute haemodynamics, which may depend on pre-existing left ventricular filling pressures.Nanterinone is a novel positive inotropic and balanced vasodilator that has demonstrated acute hemodynamic effects in patients with mild to moderate heart failure.

Vesnarinone (Arkin) (INN) is a mixed phosphodiesterase 3 inhibitor and ion-channel modifier that has modest, dose-dependent, positive inotropic activity, but minimal negative chronotropic activity. It also suppresses cell proliferation and induces apoptosis by inducing the expression of p21, an inhibitor of cyclin-dependent kinase activity in p53-mediated cell cycle arrest.

Tiflucarbine is a potential non-selective 5-HT agonist with antidepressant activity.Tiflucarbine dose-dependently increased the specific activity of soluble calmodulin (CaM)-dependent phosphodiesterase in rat brain.

OPC18750 HCl is a potential phosphodiesterase inhibitor with positive inotropic effects that can be used to study asthma, cancer, diabetes, and psychiatric disorders.

Pentoxifylline (PTX) modulates immunologic activity by stimulating cytokine production. Pentoxifylline is a methylxanthine derivative that inhibits phosphodiesterase and affects blood rheology. It also inhibits platelet aggregation and improves blood flow by increasing erythrocyte and leukocyte flexibility.

Anagrelide (Xagrid) is a Platelet-reducing Agent. The mechanism of action of anagrelide is as a Phosphodiesterase 3 Inhibitor. The physiologic effect of anagrelide is by means of Decreased Platelet Production.

Vinpocetine (RGH-4405) is a selective inhibitor of cyclic GMP phosphodiesterase (PDE).

Doxofylline (Doxophylline) is a methylxanthine derivative with the presence of a dioxolane group in position 7. As a drug used in the treatment of asthma, doxofylline has shown similar efficacy to theophylline but with significantly fewer side effects in animal and human studies.

Theobromine (3,7-Dimethylxanthine), a xanthine alkaloid, is used as a bronchodilator and as a vasodilator.

Triflusal (UR1501) is a 2-acetoxy-4-trifluoromethylbenzoic acid and it is an aspirin chemically-related molecule but not a derivative.

Diphylline (Diprophylline) is a xanthine derivative. Diphylline exerts bronchodilator effects and to a lesser extent vasodilator and diuretic properties. Diphylline probably acts as a competitive inhibitor of phosphodiesterase which leads to an increase in intracellular cAMP. This results in relaxation of bronchial smooth muscle and other smooth muscles. Diphylline may also antagonize adenosinereceptors. Diphylline is used in the treatment of acute bronchial asthma, chronic bronchitis and emphysema.

Ketotifen fumarate (HC 20511 fumarate) is a cycloheptathiophene blocker of histamine H1 receptors and release of inflammatory mediators.

Theophylline monohydrate (Quibron) appears to inhibit phosphodiesterase and prostaglandin production, regulate calcium flux and intracellular calcium distribution, and antagonize adenosine. Theophylline monohydrate is a natural alkaloid derivative of xanthine isolated from the plants Camellia sinensis and Coffea arabica. Physiologically, this agent relaxes the bronchial smooth muscle, produces vasodilation (except in cerebral vessels), stimulates the CNS, stimulates the cardiac muscle, induces diuresis, and increases gastric acid secretion; it may also suppress inflammation and improve contractility of the diaphragm.

2-(Hydroxymethyl)pyridine (Piconol) is used as an organic synthesis and medicinal chemistry intermediate for the synthesis of the stimulant laxative bisacodyl, and as a pyridinol with hypoglycemic activity.

Amrinone (Inocor) is a positive inotropic cardiotonic (cardiotonic agent) with vasodilator properties, phosphodiesterase 3 inhibitory activity.

Dipyridamole (Persantin) is a Platelet Aggregation Inhibitor. The physiologic effect of dipyridamole is by means of Decreased Platelet Aggregation.

Aminophylline (Phyllocontin) is a competitive nonselective phosphodiesterase inhibitor giving a bronchodilatory effect.

Ibudilast (MN-166)(KC-404;AV-411;MN-166) is a relatively nonselective phosphodiesterase inhibitor. It is approved for use as an anti-inflammatory in Japan.

Proxyphylline (7-(2-Hydroxypropyl)theophylline) is a dual of adenosine A1/A2a receptor inhibitor and phosphodiesterase (PDE) inhibitor. Proxyphylline acts as a cardiac stimulant, vasodilator and bronchodilator.

Trapidil (Avantrin) is a coronary vasodilator agent. It was originally developed as a vasodilator and anti-platelet agent and has been used to treat patients with ischemic coronary heart, liver, and kidney disease.

WAY-313170 Inhibits hedgehog signaling and phosphodiesterase.