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Nutrients 2014, 6(2), 697-710; doi:10.3390/nu6020697

An Ethyl Acetate Fraction of Moringa oleifera Lam. Inhibits Human Macrophage Cytokine Production Induced by Cigarette Smoke

1
Faculty of Allied Health Sciences, Naresuan University, Phitsanulok 65000, Thailand
2
Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand
3
Department of Radiology, Oncology and Radiation Science, Faculty of Medicine, Uppsala University, Uppsala 75105, Sweden
*
Author to whom correspondence should be addressed.
Received: 27 December 2013 / Revised: 26 January 2014 / Accepted: 29 January 2014 / Published: 18 February 2014
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Abstract

Moringa oleifera Lam. (MO) has been reported to harbor anti-oxidation and anti-inflammatory activity and useful in the treatment of inflammatory diseases. However, despite these findings there has been little work done on the effects of MO on immune cellular function. Since macrophages, TNF and related cytokines play an important pathophysiologic role in lung damage induced by cigarette smoke, we examined the effects of MO on cigarette smoke extract (CSE)—induced cytokine production by human macrophages. An ethyl acetate fraction of MO (MOEF) was prepared from fresh leaves extract of Moringa and shown to consist of high levels of phenolic and antioxidant activities. Human monocyte derived macrophages (MDM) pre-treated with varying concentrations of MOEF showed decreased production of TNF, IL-6 and IL-8 in response to both LPS and CSE. The decrease was evident at both cytokine protein and mRNA levels. Furthermore, the extract inhibited the expression of RelA, a gene implicated in the NF-κB p65 signaling in inflammation. The findings highlight the ability of MOEF to inhibit cytokines (IL-8) which promote the infiltration of neutrophils into the lungs and others (TNF, IL-6) which mediate tissue disease and damage. View Full-Text
Keywords: Moringa oleifera Lam.; cigarette smoke extract; ethyl acetate fraction of Moringa oleifera Lam.; bacterial lipopolysaccharide; cytokine; human macrophages Moringa oleifera Lam.; cigarette smoke extract; ethyl acetate fraction of Moringa oleifera Lam.; bacterial lipopolysaccharide; cytokine; human macrophages
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Kooltheat, N.; Sranujit, R.P.; Chumark, P.; Potup, P.; Laytragoon-Lewin, N.; Usuwanthim, K. An Ethyl Acetate Fraction of Moringa oleifera Lam. Inhibits Human Macrophage Cytokine Production Induced by Cigarette Smoke. Nutrients 2014, 6, 697-710.

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