DNA topoisomerase II inhibitor，synthetic chemotherapeutic antibiotic
CAS：42835-25-6
分子式：C14H12FNO3
分子量：261.25
纯度：98%
存储：Store at -20°C

Background:

Flumequine (R-802) is a quinolone antibiotic, and acts as a topoisomerase II inhibitor, with an IC50 of 15 μM (3.92 μg/mL).

Flumequine (R-802) is a topoisomerase II inhibitor, with an IC50 of 3.92 μg/mL, and less potently inhibits Gyrase, with an IC50 of 1764 μg/mL. Flumequine (0-625 μg/mL) increases migration of nuclear DNA from CHL cells[1]. Flumequine (R-802) inhibits Spanish field isolates of B. hyodysenteriae with MIC50 and MIC90 of 50 and 100 μg/mL, and MBC50 and MBC90 of 50, 200 μg/mL, respectively[2]. Flumequine (R-802) suppresses A. salmonicida isolates with MIC ranging from 0.06 to 32 μg/mL[3].

Flumequine (R-802) (0-500 mg/kg, p.o.) causes dose-related DNA damage in the stomach, colon, and urinary bladder of mice, 1 and 3 h but not 24 h after its administration[1].

参考文献:
[1]. Kashida Y, et al. Mechanistic study on flumequine hepatocarcinogenicity focusing on DNA damage in mice. Toxicol Sci. 2002 Oct;69(2):317-21.
[2]. Aller-Morán LM, et al. Evaluation of the in vitro activity of flumequine against field isolates of Brachyspira hyodysenteriae. Res Vet Sci. 2015 Dec;103:51-3.
[3]. Giraud E, et al. Mechanisms of quinolone resistance and clonal relationship among Aeromonas salmonicida strains isolated from reared fish with furunculosis. J Med Microbiol. 2004 Sep;53(Pt 9):895-901.