Peng Y, Bishop KS, Ferguson LR, Quek SY. Phenolic-rich feijoa extracts from flesh, peel and whole fruit activate apoptosis pathways in the LNCaP cell line.
Food Chem 2022;
383:132285. [PMID:
35168051 DOI:
10.1016/j.foodchem.2022.132285]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 01/25/2022] [Accepted: 01/26/2022] [Indexed: 11/22/2022]
Abstract
This study aimed to explore the potential anticancer activity of phenolic-rich feijoa extracts from the flesh, peel, and whole fruit on the human prostate cancer cell line (LNCaP). Results showed that feijoa extracts had cancer-specific anti-proliferative activity on the LNCaP cell line. The anticancer activity of feijoa extracts was shown through activation of the caspase-dependent apoptosis pathway based on the increase of sub-G1 phase in the cell cycle, the decrease of mitochondrial membrane potential, as well as the elevated caspase 3, 8, and 9 activity in the treated LNCaP cells. The anti-cancer activity of feijoa extracts could be attributed to the high total phenolic contents (0.14-0.37 mg GAE/mg dw) and, in particular, the high ellagic acid content (2.662-9.119 μg/mg dw). The successful activation of the caspase-dependent apoptosis pathway indicates that phenolic-rich feijoa extracts have a good potential to be utilized as a functional ingredient in foods and nutraceuticals.
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