2-Chloro-1,4-naphthoquinone derivative of quercetin as an inhibitor of aldose reductase and anti-inflammatory agent

Date

2015-02-01

Author

Milackova, Ivana
Prnova, Marta Soltesova
Majekova, Magdalena
Sotnikova, Ruzena
Stasko, Michal
Kovacikova, Lucia
Banerjee, Sreeparna
Veverka, Miroslav
Stefek, Milan

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The ability of flavonoids to affect multiple key pathways of glucose toxicity, as well as to attenuate inflammation has been well documented. In this study, the inhibition of rat lens aldose reductase by 3,7-di-hydroxy-2-[4-(2-chloro-1,4-naphthoquinone-3-yloxy)-3-hydroxyphenyl]-5-hydroxy-chromen-4-one (compound 1), was studied in greater detail in comparison with the parent quercetin (compound 2). The inhibition activity of 1, characterized by IC50 in low micromolar range, surpassed that of 2. Selectivity in relation to the closely related rat kidney aldehyde reductase was evaluated. At organ level in isolated rat lenses incubated in the presence of high glucose, compound 1 significantly inhibited accumulation of sorbitol in a concentration-dependent manner, which indicated that 1 was readily taken up by the eye lens cells and interfered with cytosolic aldose reductase. In addition, compound 1 provided macroscopic protection of colonic mucosa in experimental colitis in rats. At pharmacologically active concentrations, compound 1 and one of its potential metabolite 2-chloro-3-hydroxy[1,4]-naphthoquinone (compound 3) did not affect osmotic fragility of red blood cells.

Subject Keywords

Pharmacology, Drug Discovery, General Medicine

URI

https://hdl.handle.net/11511/38918

Journal

JOURNAL OF ENZYME INHIBITION AND MEDICINAL CHEMISTRY

DOI

https://doi.org/10.3109/14756366.2014.892935

Collections

Department of Biology, Article

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Citation Formats

I. Milackova et al., “2-Chloro-1,4-naphthoquinone derivative of quercetin as an inhibitor of aldose reductase and anti-inflammatory agent,” JOURNAL OF ENZYME INHIBITION AND MEDICINAL CHEMISTRY, pp. 107–113, 2015, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/38918.