The Genome-Wide Expression Profile of Saussurea lappa Extract on House Dust Mite-Induced Atopic Dermatitis in Nc/Nga Mice

  • Lim, Hye-Sun (K-herb Research Center, Korea Institute of Oriental Medicine) ;
  • Ha, Hyekyung (K-herb Research Center, Korea Institute of Oriental Medicine) ;
  • Shin, Hyeun-Kyoo (K-herb Research Center, Korea Institute of Oriental Medicine) ;
  • Jeong, Soo-Jin (Korean Medicine Convergence Research Division, Korea Institute of Oriental Medicine)
  • Received : 2015.03.09
  • Accepted : 2015.08.05
  • Published : 2015.09.30


Saussurea lappa has been reported to possess anti-atopic properties. In this study, we have confirmed the S. lappa's anti-atopic properties in Nc/Nga mice and investigated the candidate gene related with its properties using microarray. We determined the target gene using real time PCR in in vitro experiment. S. lappa showed the significant reduction in atoptic dermatitis (AD) score and immunoglobulin E compared with the AD induced Nc/Nga mice. In the results of microarray using back skin obtained from animals, we found that S. lappa's properties are closely associated with cytokine-cytokine receptor interaction and the JAK-STAT signaling pathway. Consistent with the microarray data, real-time RT-PCR confirmed these modulation at the mRNA level in skin tissues from S. lappa-treated mice. Among these genes, PI3Kca and $IL20R{\beta}$ were significantly downregulated by S. lappa treatment in Nc/Nga mouse model. In in vitro experiment using HaCaT cells, we found that the S. lappa components, including alantolactone, caryophyllene, costic acid, costunolide and dehydrocostus lactone significantly decreased the expression of PI3Kca but not $IL20R{\beta}$ in vitro. Therefore, our study suggests that PI3Kca-related signaling is closely related with the protective effects of S. lappa against the development of atopic-dermatitis.


Supported by : Korea Institute of Oriental Medicine


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