Ono Pharmaceutical Co., Ltd.

Ono Pharmaceuticals Co., Ltd.

Hidehiro Suzuki

Shinji Nakade

Hiromu Habashita

Akio Hayashi

A therapeutic and/or preventing agent for a disease due to vascular constriction or vasodilation comprising a EDG-5 modulator. Since EDG-5 modulator specifically binds EDG-5 and shows antagonistic or agonistic action, EDG-5 antagonist is useful for treating and/or preventing for a disease due to vascular constriction, for example, cerebrovascular spasmodic disorder after subarachnoid hemorrhage or stroke, cardiovasucular spasmodic disorder, hypertension, renal disease, cardiac infarction, cardiac angina, arrhythmia, facilitation of the portal blood pressure involved in liver cirrhosis, varicosity involved in liver cirrhosis and the like, or EDG-5 agonist is useful for treating and/or preventing for a disease due to vasodilation of blood vessels, for example, chronic headache (such as migraine, tension-type headache, mixed-type headache thereof, or migrainous neuralgia), haemorrhoid, congestive disorder and the like.

Pharmaceutical composition for treatment of disease due to vascular constriction or vasodilation

To provide a highly active LPA and a method of screening therewith. There is provided a method of screening a preventive and/or therapeutic substance for diseases in which LPA takes part, characterized in that a compound represented by any of formula (I), (II) and (III): [wherein the meaning of characters are described in the description] is used. The compounds obtained by the screening method or the screening kit of the present invention, their salts, their solvates and prodrugs thereof would modulate the binding of highly active LPA with LPA receptor in human and other mammals, so that they can be used as a preventive and/or therapeutic agent for diseases in which LPA takes part, for example, urinary diseases, central nervous diseases, inflammatory diseases, circulatory diseases, cancer, diabetes, immune system disorders and alimentary diseases.

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Tsukuba, Japan

Hidehiro Suzuki