Effect of losartan and benzbromarone on the level of human urate transporter 1 mRNA

Yora Nindita, Toshihiro Hamada, Udin Bahrudin, Makoto Hosoyamada, Kimiyoshi Ichida, Chisato Iwai, Sunao Urashima, Narimasa Kuwabara, Sulistiyati Bayu Utami, Einosuke Mizuta, Kensaku Yamada, Osamu Igawa, Chiaki Shigemasa, Haruaki Ninomiya, Takuya Tsuchihashi, Ichiro Hisatome

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Both an angiotensin II receptor blocker, losartan (CAS 124750-99-8) and a serum urate lowering agent, benzbromarone (CAS 3562-84-3) exert a uricosuric action by inhibiting urate transporter 1 (URAT1). A recent clinical trial indicated that losartan could reduce the level of serumurate in hypertensive patients treated with urate lowering agents, suggesting the different mode of action of losartan from benzbromarone. In the present study, the effect of losartan and benzbromarone on the level of URAT1 mRNA was determined in transfected HEK293 cells. Losartan caused a significant reduction of its mRNA level, whereas it was not affected by benzbromarone. These results indicate that losartan decreases the level of human URAT1 mRNA, which may underlie the uricosuric action of losartan in hypertensive patients treated with serumurate lowering agents.

Original languageEnglish
Pages (from-to)186-188
Number of pages3
JournalArzneimittel-Forschung/Drug Research
Volume60
Issue number4
DOIs
StatePublished - 2010
Externally publishedYes

Keywords

  • Benzbromarone
  • CAS 124750-99-8
  • CAS 3562-84-3
  • Human urate transporter 1 mRNA
  • Losartan

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