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KMID : 1189420130260010019
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Journal of Korean Oriental Medical Ophthalmology & Otolaryngology & Dermatology
2013 Volume.26 No. 1 p.19 ~ p.34
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Effects of Whitmania pigra on the expressions of cytokine genes in human THP-1 cells
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Kim Hyun-Ji
Kim Kyung-Jun
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Abstract
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Objective : This study was performed to evaluate the effect of immune reaction inductive substances such as PMA, LPS, DPE, DNCB and WP, the whitman pigra extracting substance at simultaneously on the translocation of NFkB towards to the nucleus and the mRNA expression patterns of various cytokine genes in THP-1 cells, monocytes of human.
Methods : To analyze the cytokine genes expressions, the RT-PCR method was used, and measuring TNF-a that had been secreted during cell culture by the ELISA method. The morphological changes were observed during THP-1 cell by a scanning electron microscope and the quantitative distribution of NFkB in the cell that was analyzed through immunocytochemistry and a confocal microscopy.
Results : WP showed different influences onto the mRNA expression patterns of cytokine genes with PMA, LPS. DPE and DNCB according to the types of immune inductive substances in the THP-1 cells. Upon treating PMA and DPE on the THP-1 cells at the same time or either additionally treating WP thereon, the movement of NFkB increase towards the nucleus from cell cytoplasm was able to be observed. The expressions of IL-1a and IFN-r induced by PMA and PMA+DNCB were suppressed by WP while the expression of TGF-B was promoted. Regarding the secretion pattern of TNF-a according to the treatment of PMA, its secretion amount was incredibly increased by concurrent treatment of WP, however, in case of co-treatment of WP with PMA and DNCB, it was found that the secretion amount of TNF-a decreased.
Conclusions : In this study, the WP extracting substance was confirmed that it had an influence on expression patterns of cytokine genes according to the actions of a variety kinds of immune reaction inductive substances treated on the THP-1 cells. Especially, WP co-treatment with PMA and DNCB was suppressed the expression of inflammatory cytokines, such as IL-1a, IFN-r and TNF-a.
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KEYWORD
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cytokines, Whitmania pigra, immune respones, THP-1, TNF-a
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