Journal
ANAEROBE
Volume 27, Issue -, Pages 56-63Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.anaerobe.2014.03.006
Keywords
Antibacterial; Anti-inflammatory; Nostocionone; Nostocionone derivatives; Propionibacterium acnes
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Propionibacterium acnes is the primary pathogenic agent responsible for acne vulgaris on the skin and hair follicles. Overgrowth of this bacterium inhibits growth and promotes follicular inflammation, with an associated increase in pro-inflammatory cytokine production. P. acnes has therefore been considered the main target for the prevention and medical treatment of acne vulgaris. The aim of this study was to evaluate the in vitro anti-P. acnes and anti-inflammatory properties of 6 compounds isolated from Nostoc commune. One of these compounds, nostocionone (Nost), and one of its derivatives, NostD3 [(1E,4E)-1-(3,4-dihydroxyphenyl)-5-(2,6,6-trimethylcyclohex-1-enyepenta-1,4-dien-3-one], significantly inhibited P. acnes growth. Furthermore, we investigated the effects of Nost and NostD3 on heat-killed (hk) P. acnes-induced inflammation in macrophages. Both Nost and NostD3 suppressed hk P. acnes-induced nitric oxide (NO) production through the suppression of inducible NO synthase expression, following inactivation of nuclear factor kappa B. Taken together, our findings suggested that both Nost and NostD3 were promising agents for the treatment of acne vulgaris, and that NostD3 showed higher efficacy than Nost. (C) 2014 Elsevier Ltd. All rights reserved.
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