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논문 기본 정보

자료유형
학술저널
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대한한방안이비인후피부과학회 한방안이비인후피부과학회지 한방안이비인후피부과학회지 제19권 제3호
발행연도
2006.1
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22 - 33 (12page)

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Objective : Angiogenesis induced by hypoxia and inflammation are an essential process for the metastasis of solid tumors and psoriasis. We researched the HIF-1α(hypoxia inducible factor 1 alpha), VEGF(Vascular Endothelial Growth Factor), survival related PI3K-Akt, and inflammation related COX-2 protein expressions to get the information of the mechanism and effects of Rehmannia glutinosa in HepG2 and HaCaT cell lines. Method : To investigate the roles of the Rehmannia glutinosa extracts, we performed MTS assay and western blots using HaCaT cells and HepG2 cells. HaCaT cells and HepG2 cells were treated with 50㎍/㎖ and 100㎍/㎖ Rehmannia glutinosa extracts. After 4hrs, HaCaT cells were treated with IGF-II protein for 24hrs and HepG2 cells were treated with CoCl2. Results : 1. We could observe that the reduction of the protein level of HIF-1α induced by IGF-Ⅱ in HaCaT cells. 2. We could observe that the decreased PI3K-Akt and COX-2 expression level by Rehmannia glutinosa extracts treated in HaCaT cells independently with ERK1/2. 3. We could observe that the reduction of the protein level of HIF-1α induced by CoCl2 in HepG2 cells. Conclusion : These results suggest that Rehmannia glutinosa extracts contributes to the anti-survival pathway and anti-inflammatory activities. Also, we could assume that Rehmannia glutinosa act as anti-inflammatory or anti-hypoxia agents via reduction of COX-2 and HIF-1α.

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