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Effects of Osthol Isolated from Cnidium monnieri Fruit on Urate Transporter 1.


ABSTRACT: (1) Background: Crude drugs used in traditional Japanese Kampo medicine or folk medicine are major sources of new chemical entities for drug discovery. We screened the inhibitory potential of these crude drugs against urate transporter 1 (URAT1) to discover new drugs for hyperuricemia. (2) Methods: We prepared the MeOH extracts of 107 different crude drugs, and screened their inhibitory effects on URAT1 by measuring the uptake of uric acid by HEK293/PDZK1 cells transiently transfected with URAT1. (3) Results: We found that the extract of the dried mature fruit of Cnidium monnieri inhibited urate uptake via URAT1. We isolated and identified osthol as the active ingredient from this extract. Osthol noncompetitively inhibited URAT1 with an IC50 of 78.8 µM. We evaluated the effects of other coumarins and found that the prenyl group, which binds at the 8-position of coumarins, plays an important role in the inhibition of URAT1. (4) Conclusions: Cnidium monnieri fruit may be useful for the treatment of hyperuricemia or gout in traditional medicine, and its active ingredient, osthol, is expected to be a leading compound for the development of new drugs for hyperuricemia.

SUBMITTER: Tashiro Y 

PROVIDER: S-EPMC6278453 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature

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Effects of Osthol Isolated from <i>Cnidium monnieri</i> Fruit on Urate Transporter 1.

Tashiro Yuusuke Y   Sakai Ryo R   Hirose-Sugiura Tomoko T   Kato Yukio Y   Matsuo Hirotaka H   Takada Tappei T   Suzuki Hiroshi H   Makino Toshiaki T  

Molecules (Basel, Switzerland) 20181101 11


(1) Background: Crude drugs used in traditional Japanese Kampo medicine or folk medicine are major sources of new chemical entities for drug discovery. We screened the inhibitory potential of these crude drugs against urate transporter 1 (URAT1) to discover new drugs for hyperuricemia. (2) Methods: We prepared the MeOH extracts of 107 different crude drugs, and screened their inhibitory effects on URAT1 by measuring the uptake of uric acid by HEK293/PDZK1 cells transiently transfected with URAT1  ...[more]

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