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Merck
  • Fimasartan, anti-hypertension drug, suppressed inducible nitric oxide synthase expressions via nuclear factor-kappa B and activator protein-1 inactivation.

Fimasartan, anti-hypertension drug, suppressed inducible nitric oxide synthase expressions via nuclear factor-kappa B and activator protein-1 inactivation.

Biological & pharmaceutical bulletin (2013-03-02)
Suran Ryu, Ji-Sun Shin, Young-Wuk Cho, Hyoung Kook Kim, Soo Heui Paik, Joo Han Lee, Yong Ha Chi, Ji Han Kim, Je Hak Kim, Kyung-Tae Lee
초록

Since inhibition of angiotensin II type 1 (AT1) receptor reduces chronic inflammation associated with hypertension, we evaluated the anti-inflammatory potential and the underlying mechanism of fimasartan, a Korean Food and Drug Administration approved anti-hypertension drug, in lipopolysaccharide (LPS)-stimulated RAW264.7 macrophages. Fimasartan suppressed the expressions of inducible nitric oxide synthase (iNOS) by down-regulating its transcription, and subsequently inhibited the productions of nitric oxide (NO). In addition, fimasartan attenuated LPS-induced transcriptional and DNA-binding activities of nuclear factor-kappa B (NF-κB) and activator protein-1 (AP-1). These reductions were accompanied by parallel reductions in the nuclear translocation of NF-κB and AP-1. Taken together, our data suggest that fimasartan down-regulates the expression of the iNOS in macrophages via NF-κB and AP-1 inactivation.

MATERIALS
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Sigma-Aldrich
Fimasartan, ≥98% (HPLC)