Abstract Title:

Isolation of (S)-(+)-naproxene from Musa acuminata. Inhibitory effect of naproxene and its 7-methoxy isomer on constitutive COX-1 and inducible COX-2.

Abstract Source:

J Pharmacol Sci. 2007 Sep;105(1):82-93. PMID: 10909271

Abstract Author(s):

T Abad, G McNaughton-Smith, W Q Fletcher, F Echeverri, R Diaz-Peñate, C Tabraue, C M Ruiz de Galarreta, F López-Blanco, J G Luis

Abstract:

The isolation and characterisation of (S)-(+)-6-methoxy-alpha-methyl-2-naphthaleneacetic acid, a well known synthetic non-steroidal anti-inflammatory drug (naproxene), from a natural source is described for the first time. We evaluated the ability of naproxene and its 7-methoxy isomer to abrogate constitutive COX-1 and inducible COX-2 activity in human A549 cells. Naproxene inhibited COX-1 (IC50 = 3.42 microM) and COX-2 (IC50 = 1.53 microM), whereas the 7-methoxy isomer had no appreciable effect on COX-1 (IC50 >> 100 microM) but also abrogated the activity of COX-2 enzyme (IC50 = 14.42 microM).

Study Type : In Vitro Study
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