Insights & Discussion
The pectin-free fraction from Lycium barbarum fruit exhibits significant antioxidant activity and inhibits the growth of breast cancer cells.
In this study, researchers took three portions from Lycium barbarum fruit – total water, pectin-free, and polysaccharide, and analyzed their antioxidant potential using Oxygen Radical Absorbance Capacity and Hydroxyl Radical Averting Capacity assays. The team also examined the pectin-free and the polysaccharide fraction's antiproliferative effects on non-tumorigenic and tumorigenic breast cell lines through the MTT dye reduction assay.
The results revealed that the pectin-free fraction from Lycium barbarum fruit demonstrated growth inhibition in a concentration-dependent manner on the three cell lines. This effect was highly pronounced on the breast cancer cells. The polysaccharide fraction showed limited activity, only reducing the proliferation of one type of breast cancer cell at maximum concentration. Surprisingly, pairing the pectin-free and polysaccharide fraction did not produce a synergistic effect. A relationship was observed between the polyphenolic content in the extracts and the resulting effects, with the pectin-free extract containing the most polyphenols and demonstrating the most potent antioxidant and antineoplastic impact against breast cancer cells.
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In this study, the researchers isolated three fractions of Lycium barbarum, also known as goji berry, and tested their antioxidant activity using Oxygen Radical Absorbance Capacity and Hydroxyl Radical Averting Capacity assays. After this, the antiproliferative effects of these extracts were evaluated on three separate breast cancer cell lines. To see the influence of different components of the berry, a distinct pectin-free fraction was used and its effects were studied in conjunction with those of added polysaccharides.
The results indicate that the pectin-free fraction produced the most significant growth inhibitory effect on the breast cancer cells. This inhibitory effect was found to be enhanced when polysaccharides were added to the pectin-free fraction. A determining factor for the observed effects seemed to be the polyphenolic content of the extracts, with higher content correlating to stronger effects.
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