TY - JOUR
T1 - Differential suppression of heat-killed lactobacilli isolated from kimchi, a Korean traditional food, on airway hyper-responsiveness in mice
AU - Hong, Hye Jin
AU - Kim, Eugene
AU - Cho, Daeho
AU - Kim, Tae Sung
N1 - Funding Information:
Acknowledgments This work was supported by a grant of the Science Research Center Program, Ministry of Science & Technology, Republic of Korea (R11-2005-017).
PY - 2010/5
Y1 - 2010/5
N2 - Rationale: Probiotics have been shown to be effective in reducing allergic symptoms. However, there are few studies to evaluate the therapeutic effects of lactobacilli on allergen-induced airway inflammation. Objective: We investigated whether three heat-killed lactobacilli, Lactobacillus plantarum, Lactobacillus curvatus and Lactobacillus sakei subsp. sakei, isolated from kimchi, exerted inhibitory effects on airway hyper-responsiveness in a murine asthma model. Methods: Heat-killed lactic acid bacteria were orally administered into BALB/c mice, followed by challenge with aerosolized ovalbumin, after which allergic symptoms were evaluated. Results: Airway inflammation was suppressed in the L. plantarum- and L. curvatus-treated mice. Interleukin (IL)-4 and IL-5 levels were significantly lower in the L. plantarum- and L. curvatus-treated mice than in those treated with L. sakei subsp. sakei. Importantly, heat-killed L. plantarum administration induced Foxp3 expression in intestinal lamina propria cells, and heat-killed L. curvatus induced IL-10 as a way of inducing tolerance. Conclusion: Specific strains of lactobacilli isolated from kimchi can effectively suppress airway hyper-responsiveness.
AB - Rationale: Probiotics have been shown to be effective in reducing allergic symptoms. However, there are few studies to evaluate the therapeutic effects of lactobacilli on allergen-induced airway inflammation. Objective: We investigated whether three heat-killed lactobacilli, Lactobacillus plantarum, Lactobacillus curvatus and Lactobacillus sakei subsp. sakei, isolated from kimchi, exerted inhibitory effects on airway hyper-responsiveness in a murine asthma model. Methods: Heat-killed lactic acid bacteria were orally administered into BALB/c mice, followed by challenge with aerosolized ovalbumin, after which allergic symptoms were evaluated. Results: Airway inflammation was suppressed in the L. plantarum- and L. curvatus-treated mice. Interleukin (IL)-4 and IL-5 levels were significantly lower in the L. plantarum- and L. curvatus-treated mice than in those treated with L. sakei subsp. sakei. Importantly, heat-killed L. plantarum administration induced Foxp3 expression in intestinal lamina propria cells, and heat-killed L. curvatus induced IL-10 as a way of inducing tolerance. Conclusion: Specific strains of lactobacilli isolated from kimchi can effectively suppress airway hyper-responsiveness.
KW - Asthma
KW - Kimchi
KW - Mice
KW - Tolerance
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U2 - 10.1007/s10875-010-9375-8
DO - 10.1007/s10875-010-9375-8
M3 - Article
C2 - 20204477
AN - SCOPUS:77953287334
VL - 30
SP - 449
EP - 458
JO - Journal of Clinical Immunology
JF - Journal of Clinical Immunology
SN - 0271-9142
IS - 3
ER -