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Arctigenin is an extract from A. lappa, a burdock plant traditionally used in Japanese Kampo medicine for its antioxidant, anti-inflammatory, antiproliferative, and antiviral activity. At 0.1 μM, arctigenin can block the activation of Akt induced by glucose starvation in pancreatic cancer PANC-1 cells, which is a key process in the tolerance exhibited by cancer cells to glucose starvation.1 It has potent in vitro antiviral activities against influenza A virus and shows neuroprotective effects against an experimental mouse model of Japanese encephalitis.2,3 Arctigenin also demonstrates a therapeutic effect in ischemic stroke treatment of middle cerebral artery occluded rats by suppressing microglia activation and decreasing IL-1β and TNF-α expression.4
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1. Identification of arctigenin as an antitumor agent having the ability to eliminate the tolerance of cancer cells to nutrient starvation. Cancer Res. 66(3), 1751-1757 (2006).
2. Therapeutic effect of arctiin and arctigenin in immunocompetent and immunocompromised mice infected with influenza A virus. Biol. Pharm. Bull. 33(7), 1199-1205 (2010).
3. Novel strategy for treatment of Japanese encephalitis using arctigenin, a plant lignan. J. Antimicrob. Chemother. 61(3), 679-688 (2008).
4. Arctigenin protects focal cerebral ischemia-