Tilmicosin and tylosin have anti-inflammatory properties via modulation of COX-2 and iNOS gene expression and production of cytokines in LPS-induced macrophages and monocytes.

Abstract:

:Macrolides have been reported to modify the host immune and inflammatory responses both in vivo and in vitro. We examined the in vitro effect of the macrolides tilmicosin and tylosin, which are only used in the veterinary clinic, on the production of nitric oxide (NO), prostaglandin E(2) (PGE(2)) and cytokines by lipopolysaccharide (LPS)-stimulated RAW264.7 macrophages and mouse peripheral blood mononuclear cells (PBMCs). Compared with 5 microg/mL, tilmicosin and tylosin concentrations of 10 microg/mL and 20 microg/mL significantly decreased the production of 6-keto-prostaglandin F(1alpha) (6-keto-PGF(1alpha)), PGE(2), NO, tumour necrosis factor-alpha (TNF-alpha), interleukin (IL)-1beta and IL-6, and increased IL-10 production. Cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) gene expression were also significantly reduced. These results support the opinion that macrolides may exert an anti-inflammatory effect through modulating the synthesis of several mediators and cytokines involved in the inflammatory process.

authors

Cao XY,Dong M,Shen JZ,Wu BB,Wu CM,Du XD,Wang Z,Qi YT,Li BY

doi

10.1016/j.ijantimicag.2005.12.010

subject

Has Abstract

pub_date

2006-05-01 00:00:00

pages

431-8

issue

5

eissn

0924-8579

issn

1872-7913

pii

S0924-8579(06)00062-8

journal_volume

27

pub_type

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