| RRC ID |
70295
|
| 著者 |
Akao Y, Terazawa R, Sugito N, Heishima K, Morikawa K, Ito Y, Narui R, Hamaguchi R, Nobukawa T.
|
| タイトル |
Understanding of cell death induced by the constituents of Taxus yunnanensis wood.
|
| ジャーナル |
Sci Rep
|
| Abstract |
The ethanol extract from the wood of Taxus Yunnanensis (TY) induced apoptosis in all cancer cell lines tested, which was mainly due to activation of an extrinsic pathway in human colon cancer DLD-1 cells. The extrinsic pathway was activated by the upregulation of the expression levels of Fas and TRAIL/DR5, which led to the activation of caspase-8. Of note, the machinery of this increase in expression was promoted by the upregulation of MIR32a expression, which silenced MIR34a-targeting E2F3 transcription factor. Furthermore, ectopic expression of MIR32a or siR-E2F3 silencing E2F3 increased Fas and TRAIL/DR5 expression. Thus, the extract activated the extrinsic pathway through the MIR34a/E2F3 axis, resulting in the autocrine and paracrine release of TRAIL, and upregulated expression of death receptors Fas and DR5 in the treated DLD-1 cells, which were functionally validated by Fas immunocytochemistry, and using anti-Fas and anti-TRAIL antibodies, respectively. In vivo, TY showed significant anti-tumor effects on xenografted and syngeneic model mice. The extract may also aid in chemoprevention by selectively making marked tumor cells susceptible to the tumor immunosurveillance system.
|
| 巻・号 |
12(1)
|
| ページ |
6282
|
| 公開日 |
2022-4-15
|
| DOI |
10.1038/s41598-022-09655-2
|
| PII |
10.1038/s41598-022-09655-2
|
| PMID |
35428370
|
| PMC |
PMC9012736
|
| MeSH |
Animals
Apoptosis
Cell Death
Cell Line, Tumor
Membrane Glycoproteins / metabolism
Mice
Plant Extracts / pharmacology
Receptors, TNF-Related Apoptosis-Inducing Ligand* / metabolism
TNF-Related Apoptosis-Inducing Ligand / pharmacology
Taxus* / metabolism
Wood / metabolism
|
| IF |
3.998
|
| リソース情報 |
| ヒト・動物細胞 |
DU145(RCB2143) |
