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International Journal of Medicinal Mushrooms
Facteur d'impact: 1.423 Facteur d'impact sur 5 ans: 1.525 SJR: 0.431 SNIP: 0.661 CiteScore™: 1.38

ISSN Imprimer: 1521-9437
ISSN En ligne: 1940-4344

Volumes:
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International Journal of Medicinal Mushrooms

DOI: 10.1615/IntJMedMushrooms.2018026983
pages 727-738

Compound of Stout Camphor Medicinal Mushroom, Taiwanofungus camphoratus (Agaricomycetes), Induces Protective Autophagy in SPCA-1 Cells through AMPK Inhibition-Independent Blockade of the Akt/mTOR Pathway

Hairui Yang
National Engineering Research Center of Edible Fungi, Key Laboratory of Applied Mycological Resources and Utilization of Ministry of Agriculture, Shanghai Key Laboratory of Agricultural Genetics and Breeding; Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, China; WuXi AppTec Co. Ltd., Shanghai, China
Jinsong Zhang
National Engineering Research Center of Edible Fungi, Key Laboratory of Applied Mycological Resources and Utilization of Ministry of Agriculture, Shanghai Key Laboratory of Agricultural Genetics and Breeding; Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, China
Henan Zhang
National Engineering Research Center of Edible Fungi, Key Laboratory of Applied Mycological Resources and Utilization of Ministry of Agriculture, Shanghai Key Laboratory of Agricultural Genetics and Breeding; Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai 201403, P.R. China
Yan Yang
National Engineering Research Center of Edible Fungi, Key Laboratory of Applied Mycological Resources and Utilization of Ministry of Agriculture, Shanghai Key Laboratory of Agricultural Genetics and Breeding, Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
Yanfang Liu
National Engineering Research Centre of Edible Fungi, Key Laboratory of Applied Mycological Resources and Utilisation, Ministry of Agriculture, Institute of Edible Fungi, Shanghai Academy of Agriculture Sciences, Shanghai, People's Republic of China
Wenbo Sun
Shandong Provincial Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
Wenhan Wang
National Engineering Research Center of Edible Fungi, Key Laboratory of Applied Mycological Resources and Utilization of Ministry of Agriculture, Shanghai Key Laboratory of Agricultural Genetics and Breeding; Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, China
Wei Jia
National Engineering Research Center of Edible Fungi, Key Laboratory of Applied Mycological Resources and Utilization of Ministry of Agriculture, Shanghai Key Laboratory of Agricultural Genetics and Breeding; Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, China

RÉSUMÉ

Our previous study showed that By-1, a maleimide derivative isolated from Taiwanofungus camphoratus, could induce reactive oxygen species-triggered apoptosis and G2 cell cycle arrest through a caspase-dependent pathway and also induced protective autophagy in human lung cancer SPCA-1 cells. Here, we further examined the autophagy flux and detected related proteins by Western blot analysis and fluorescence activated cell sorting, and we sought to find the exact role and underlying pathway of autophagy in SPCA-1 cells. Our results showed that By-1 treatment activated autophagy flux in SPCA-1 cells, which further confirmed that autophagy was induced by By-1 treatment in our previous study. Autophagy activator rapamycin restored cell death from By-1 treatment (21.32%) and verified that autophagy played a protective role in By-l-treated cells. Meanwhile, By-1 treatment suppressed the Akt-mammalian target of rapamycin (mTOR) pathway and the AMP-activated protein kinase (AMPK) pathway. Taken together, these findings indicate that By-1 induced protective autophagy in SPCA-1 cells through AMPK inhibition-independent blockade of the Akt/mTOR pathway.


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