期刊
JOURNAL OF FUNCTIONAL FOODS
卷 94, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jff.2022.105145
关键词
Phycocyanin; Autophagy; Cell viability; NSCLC; AMPK signaling
资金
- National Natural Science Foundation of China [32072231]
The study found that phycocyanin can inhibit the viability of non-small cell lung cancer cells by activating autophagy and AMPK signaling pathway. Therefore, targeting autophagy could be a promising approach to improve the treatment of NSCLC.
Non-small cell lung cancer (NSCLC) remains a leading cause of cancer mortality worldwide. Phycocyanin, a type of marine food additives, has been reported to exert antineoplastic effects in NSCLC. The aim of this study was to investigate roles of autophagy in the anticancer process of phycocyanin in NSCLC. Results showed that phycocyanin increased LC3-II/LC3-I ratio and decreased p62 level of NSCLC cells in a dose-and time-dependent manner. Laser scanning confocal observation of autophagic LC3 puncta showed phycocyanin promotes autophagy flux of NSCLC cells. In addition, AMPK signaling was activated upon phycocyanin treatment. Strikingly, phycocyanin was shown to synergistically affect the autophagy of cells with rapamycin and chloroquine, thus concertedly inhibiting the viabilities of NSCLC cells. These results indicated that the antineoplastic effect of phycocyanin could be attributed to the activated autophagy and AMPK signaling pathway. Thus, targeting autophagy could be a promising way to improve NSCLC though phycocyanin.
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