Triptolide induces apoptosis through extrinsic and intrinsic pathways in human osteosarcoma U2OS cells
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Title |
Triptolide induces apoptosis through extrinsic and intrinsic pathways in human osteosarcoma U2OS cells
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Creator |
Kwon, Haw-Young
Kim, Kyoung-Sook An, Hyun-Kyu Moon, Hyung-In Kim, Hyun-Jun Lee, Young-Choon |
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Subject |
Triptolide
U2OS cell Apoptosis |
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Description |
485-491
Triptolide, a diterpene derived from Tripterygium wilfordii Hook f., a Chinese medicinal herb, has been reported to inhibit cell proliferation and induce apoptosis in various human cancer cells, but its anticancer effects on human osteosarcoma cells have not yet been elucidated. In this study, we investigated whether triptolide induces apoptosis in human osteosarcoma cells and the underlying molecular mechanisms. We firstly demonstrated that triptolide inhibited cell growth and induced apoptosis in U2OS cells. Western blot analysis showed that the levels of procaspase-8, -9, Bcl-2, Bid and mitochondrial cytochrome c were downregulated in triptolide-treated U2OS cells, whereas the levels of Fas, FasL, Bax, cytosolic cytochrome c, cleaved caspase-3 and cleaved PARP were upregulated. These results suggest that triptolide induces apoptosis in U2OS cells by activating both death receptor and mitochondrial apoptotic pathways. |
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Date |
2013-12-27T11:26:05Z
2013-12-27T11:26:05Z 2013-12 |
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Type |
Article
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Identifier |
0975-0959 (Online); 0301-1208 (Print)
http://hdl.handle.net/123456789/25163 |
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Language |
en_US
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Rights |
CC Attribution-Noncommercial-No Derivative Works 2.5 India
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Publisher |
NISCAIR-CSIR, India
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Source |
IJBB Vol.50(6) [December 2013]
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