5-Bromo-2-hydroxy-4-methyl-benzaldehyde inhibited LPS-induced production of pro-inflammatory mediators through the inactivation of ERK, p38, and NF-kappa B pathways in RAW 264.7 macrophages
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Title
- 5-Bromo-2-hydroxy-4-methyl-benzaldehyde inhibited LPS-induced production of pro-inflammatory mediators through the inactivation of ERK, p38, and NF-kappa B pathways in RAW 264.7 macrophages
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Author(s)
- Kim, Kil-Nam; Ko, Seok-Chun; Ye, Bo-Ram; Kim, Min-Sun; Kim, Junseong; Ko, Eun-Yi; Cho, Su-Hyeon; Kim, Daekyung; Heo, Soo-Jin; Jung, Won-Kyo
- KIOST Author(s)
- Kim, Jun Seong(김준성); Heo, Soo Jin(허수진)
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Alternative Author(s)
- 예보람; 김민선; 김준성; 허수진
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Publication Year
- 2016-10-25
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Abstract
- The aim of the present study was to investigate the effects of 5-bromo-2-hydroxy-4-methyl-benzaldehyde (BHMB) on inflammatory responses to lipopolysaccharide (LPS) in RAW 264.7 cells and the associated mechanism of action. BHMB concentration-dependently suppressed protein and mRNA expressions of iNOS and COX-2, thereby inhibiting the production of NO and PGE(2) in LPS-stimulated RAW 264.7 cells. BHMB also reduced the mRNA expression of TNF-alpha, IL-6, and IL-1 beta in LPS-stimulated RAW 264.7 cells. To elucidate the mechanism underlying the anti-inflammatory activity of BHMB, we investigated the effects of BHMB on the mitogen-activated protein kinase and nuclear factor-kappa B (NF-kappa B) pathways. BHMB suppressed the phosphorylation and degradation of I kappa B-alpha and markedly inhibited the nuclear translocation of p65 and p50 in LPS-stimulated RAW 264.7 cells. The compound also inhibited the LPS-stimulated phosphorylation of ERK and p38. Taken together, these results illustrated that BHMB suppresses pro-inflammatory mediator and cytokine expression in LPS-stimulated RAW 264.7 cells by inhibiting the phosphorylation of ERK and p38 and the activation of NF-kappa B. (C) 2016 Elsevier Ireland Ltd. All rights reserved.
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ISSN
- 0009-2797
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/2151
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DOI
- 10.1016/j.cbi.2016.08.022
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Bibliographic Citation
- CHEMICO-BIOLOGICAL INTERACTIONS, v.258, pp.108 - 114, 2016
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Publisher
- ELSEVIER IRELAND LTD
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Subject
- NITRIC-OXIDE SYNTHASE; ACTIVATED PROTEIN-KINASE; MAMMALIAN-CELLS; CAFFEIC ACID; BACTERIAL LIPOPOLYSACCHARIDE; PHENOLIC-COMPOUNDS; INTERFERON-GAMMA; GENE-EXPRESSION; IN-VIVO; CYCLOOXYGENASE-2
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Keywords
- 5-Bromo-2-hydroxy-4-methyl-benzaldehyde (BHMB); Proinflammatory; RAW 264.7 cells; MAPKs; NF-kappa B
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Type
- Article
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Language
- English
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Document Type
- Article
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