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Abstract Title:

Orbitides isolated from flaxseed induce apoptosis against SGC-7901 adenocarcinoma cells.

Abstract Source:

Int J Food Sci Nutr. 2020 Apr 12:1-11. Epub 2020 Apr 12. PMID: 32281434

Abstract Author(s):

Xian-Guo Zou, Jing Li, Pei-Long Sun, Ya-Wei Fan, Jian-Yuan Yang, Ze-Yuan Deng

Article Affiliation:

Xian-Guo Zou

Abstract:

Unique plant-derived cyclic peptides family exhibiting various key biological activities has great possibility for anticancer therapy. In this study, we investigated the effects of orbitides isolated from flax (L.) on the growth of SGC-7901 cancer cells and the potential mechanism. Results showed that flaxseed orbitides killed off cancer cells by inducing apoptosis in a dose-dependent manner, which was confirmed by the appearance of nuclear shrinkage and DNA fragmentation, and the inhibitory effect was stronger than that of pure orbitide [1-9-NαC]-linusorb B2 or [1-9-NαC]-linusorb B3. Besides, the mitochondrial apoptosis pathway-related protein cytochrome C (Cyt C) was released from mitochondria to cytosol, associated with the activation of caspases 9 and 3, and the cleavage of PARP. Taken together, these results indicated that flaxseedorbitides induced apoptosis via the mitochondrial pathway, releasing Cyt C, increasing Bax/Bcl-2 ratio and elevating the expression of cleaved caspase 9 and 3 in SGC-7901 cells.

Study Type : In Vitro Study

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