A Novel Series of (S)-2,7-Substituted-1,2,3,4-tetrahydroisoquinoline-3-carboxylic Acids: Peroxisome Proliferator-Activated Receptor α/γ Dual Agonists with Protein-Tyrosine Phosphatase 1B Inhibitory Activity
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概要
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Novel 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid derivatives were synthesized and (S)-7-(2-{2-[(E)-2-cyclopentylvinyl]-5-methyloxazol-4-yl}ethoxy)-2-[(2E,4E)-hexadienoyl]-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (14c) was identified as a peroxisome proliferator-activated receptor (PPAR) α/γ dual agonist. The transactivation activity of 14c was comparable to that of rosiglitazone in human PPARγ (EC50=0.14 μM) and was much higher than in human PPARα (EC50=0.20 μM). In addition, 14c, but not rosiglitazone, showed human protein-tyrosine phosphatase 1B (PTP-1B) inhibitory activity (IC50=1.85 μM). 14c showed about 10-fold stronger hypoglycemic and hypotriglyceridemic effects than rosiglitazone by repeated application for 14 d in male KK-Ay mice. Furthermore, 14c, but not rosiglitazone, increased hepatic peroxisome acyl CoA oxidase activity at 30 mg/kg/d for 7 d in male Syrian hamsters, probably due to its PPARα agonist activity. 14c did not affect plasma volume at 100 mg/kg/d for 14 d in male ICR mice, while rosiglitazone significantly increased it. In conclusion, 14c is a promising candidate for an efficacious and safe anti-diabetic drug with triple actions as a PPARα/γ dual agonist with PTP-1B inhibitory activity.
著者
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Miike Tomohiro
Research Laboratories Kyoto Pharmaceutical Industries Ltd.
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Shirahase Hiroaki
Research Laboratories Kyoto Pharmaceutical Company Ltd.
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Kunishiro Kazuyoshi
Research Laboratories Kyoto Pharmaceutical Industries Ltd.
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AZUKIZAWA Satoru
Research Laboratories, Kyoto Pharmaceutical Industries, Ltd.
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Otake Kazuya
Research Laboratories, Kyoto Pharmaceutical Industries, Ltd.
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Fukui Masaki
Research Laboratories, Kyoto Pharmaceutical Industries, Ltd.
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Shibabayashi Michiko
Research Laboratories, Kyoto Pharmaceutical Industries, Ltd.
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Kamemoto Hikaru
Research Laboratories, Kyoto Pharmaceutical Industries, Ltd.
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Kasai Masayasu
Research Laboratories, Kyoto Pharmaceutical Industries
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