- P-ISSN 1010-0695
- E-ISSN 2288-3339
Objectives : To evaluate experimentally the clinical effect of Bojeongjeongcheon- tang, we observed the cytokines (IL-1β, IL-4, IL-5, IL-6, IL-10, TNF-α, TGF-β, IFN-γ) and how they have effect on IgE in B cells of a rat. Methods : First of all, we picked the spleen of healthy Balb/c mice and separated B cells from it. And the B cells were cultured with anti-CD40 mAb(500 ng/ml), rmIL-4(500 U/ml), Bojeongjeongcheon-tang (100 ㎍/㎖, 10 ㎍/㎖, 1 ㎍/㎖). We used rmIL-10 (50 ng/ml) as a control group. Furthermore, we analyzed the expression of IgE, CD23, CD69 and the coherence of HRF in B cells using flow cytometer. We also analyzed the cytokine gene expression in B cells by reverse transcriptase-PCR. And we also measured B cells proliferation using the Liquid Scintillation Counter. Results : In this study, Bojeongjeongcheon-tang treated group showed a tendency to decrease depending on the density compared with the control group in the expression of IgE+, CD23+, CD69, HRF. All of the Bojeongjeongcheon-tang treated group showed inhibitory effects with IL-1β, IL-4, IL-5 and proliferous effects with IL-6, IL-10, IFN-γ on Cytokines Transcript Expression depending on the density. Meanwhile, TNF-α increased in all density. In IgE production, there was inhibitory effect on Bojeongjeongcheon-tang (both 100㎍/㎖ and 10㎍/㎖) with significancy (p<0.01, p<0.05). Also in B cell proliferation, the result revealed inhibitory effect on Bojeongjeongcheon-tang(both 100㎍/㎖ and 10㎍/㎖) with significancy (p<0.001, p<0.01). Conclusions : This study shows that Bojeongjeongcheon-tang has an inhibitory effect on the production and activity of B cells. Also it inhibited CD23, IL-4 activity and IgE production and activation. It is obvious that Bojeongjeongcheon-tang cure asthma by inhibiting the production of histamine and HRF, IL-5 and proliferating IL-10. Also Bojeongjeongcheon-tang has some preventive effects on bronchial change by inhibiting TGF-β, which stimulates the bronchial transformation.
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