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KMID : 0380620100420030335
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Korean Journal of Food Science and Technology
2010 Volume.42 No. 3 p.335 ~ p.349
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Effect of Korean Red Ginseng on the Stability of the Tight Junction of Intestinal Epithelial Cells
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Shon Dong-Hwa
Kim Mi-Hye
Kim Young-Chan
Kim Sung-Soo
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Abstract
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Bioactive components involved in the tight junction stabilization of intestinal epithelial cells from Korean red ginseng were studied by analyzing transepithelial electrical resistance (TEER) values of the Caco-2 cell monolayer between the apical and basolateral sides for 96 hr. The treatment with less than 20 μg/mL of the Korean red ginseng extract to the apical side of Caco-2 cell monolayer gave higher TEER values than the control. However, the treatment with more than 130 μg/mL of the Korean red ginseng extract drastically decreased the TEER values, and these effects were not due to its cytotoxicity. When fractions of low molecular weight compounds, polysaccharides, proteins, saponins, and polyphenols derived from Korean ginseng were applied to the apical side of the Caco-2 cell monolayer, polyphenols showed high tight junction stabilizing activity and saponins showed low activity, but the others showed no significant activity. These results suggest that Korean red ginseng might be useful for the prevention of food allergy by stabilizing the tight junction of intestinal epithelial cells leading to hindering absorption of food allergens.
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KEYWORD
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Korean red ginseng, Caco-2 cell, tight junction, transepithelial electrical resistance (TEER)
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