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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/79499


    Title: Toona sinensis Inhibits LPS-Induced Inflammation and Migration in Vascular Smooth Muscle Cells via Suppression of Reactive Oxygen Species and NF-kB Signaling Pathway
    Authors: Ya, Hsin-Ling;Yang, Hsin-Ling;黃佩珍;Huang, Pei-Jane;Liu, Yi-Ru;Liu, Yi-Ru;K.J.Senthi;Kumar, K.J.Senthil;Hsu, Li-Sung;Hsu, Li-Sung;Lu, Te-Ling;Lu, Te-Ling;Chia, Yi-Chen;Chia, Yi-Chen;Takaj, Tokuko;Takajo, Tokuko;Kazuno, Anzai;Kazunori, Anzai;許游章;*, Hseu You-Cheng
    Contributors: 保健營養生技學系
    Date: 2014-03
    Issue Date: 2014-06-03 19:22:49 (UTC+8)
    Abstract: Toona sinensis is one of the most popular vegetarian cuisines in Taiwan and it has been shown to possess antioxidant, antiangiogenic, and anticancer properties. In this study, we investigated the antiatherosclerotic potential of aqueous leaf extracts from Toona sinensis (TS; 25–100 g/mL) and its major bioactive compound, gallic acid (GA; 5 g/mL), in LPS-treated rat aortic smooth muscle (A7r5) cells. We found that pretreatment with noncytotoxic concentrations of TS and GA significantly inhibited inflammatory NO and production by downregulating their precursors, iNOS and COX-2, respectively, in LPS-treated A7r5 cells. Furthermore, TS and GA inhibited LPS-induced intracellular ROS and their corresponding mediator, p4. Notably, TS and GA pretreatment significantly inhibited LPS-induced migration in transwell assays. Gelatin zymography and western blotting demonstrated that treatment with TS and GA suppressed the activity or expression of MMP-9, MMP-2, and t-PA. Additionally, TS and GA significantly inhibited LPS-induced VEGF, PDGF, and VCAM-1 expression. Further investigation revealed that the inhibition of iNOS/COX-2, MMPs, growth factors, and adhesion molecules was associated with the suppression of NF-κB activation and MAPK (ERK1/2, JNK1/2, and p38) phosphorylation. Thus, Toona sinensis may be useful for the prevention of atherosclerosis.
    Relation: Oxidative Medicine and Cellular Longevity
    Appears in Collections:[食品營養與保健生技學系] 期刊論文

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