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KMID : 1007520200290030419
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Food Science and Biotechnology
2020 Volume.29 No. 3 p.419 ~ p.429
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Additive anti-inflammation by a combination of conjugated linoleic acid and α-lipoic acid through molecular interaction between both compounds
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Lee Ki-June
Ko Yoon-Joo
Kang Sang-Kee
Kim Whee-Soo
Cho Chong-Su
Choi Yun-Jaie
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Abstract
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Alpha lipoic acid (LA) and conjugated linoleic acid (CLA) have been well-documented on a variety of functional effects in health foods. The main purpose of this study was focused on the additive anti-inflammatory activity of the combination of LA and CLA in vitro. Raw 264.7 cells induced by lipopolysaccharide were treated with LA and CLA individually or in combination at a variety of concentration ranges. Co-treating 25 μM of LA and 25 μM of CLA significantly inhibited pro-inflammatory cytokines compared to the same concentration of single LA- or CLA-treated group. The molecular mechanism of anti-inflammation by a combination of these compounds was attributed to extracellular signal-regulated kinase-1 (ERK1) and peroxisome proliferator-activated receptor gamma (PPARγ). Also, the molecular interaction between both compounds was confirmed by NMR. Our findings suggested that the combination of CLA and LA showed potential additive effect on anti-inflammation through the molecular interaction of both compounds.
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KEYWORD
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Anti-inflammation, Alpha lipoic acid (LA), Conjugated linoleic acid (CLA), Extracellular signal-regulated kinase-1 (ERK1), Peroxisome proliferator-activated receptor gamma (PPARγ)
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