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. 2019 Nov;43(11):e12999.
doi: 10.1111/jfbc.12999. Epub 2019 Jul 31.

Chlorogenic acid-rich Solanum melongena extract has protective potential against rotenone-induced neurotoxicity in PC-12 cells

Young Youn  1 , Sung-Hee Jeon  1 , Hee-Yeon Jin  1 , Denis Nchang Che  2 , Seon-Il Jang  3 , Young-Soo Kim  2
Affiliations

Chlorogenic acid-rich Solanum melongena extract has protective potential against rotenone-induced neurotoxicity in PC-12 cells

Young Youn et al. J Food Biochem. 2019 Nov.

Abstract

Neurodegenerative diseases are major threats to human health. Here, through fluorescence, colorimetric, immunoblotting, spectroscopy, and laser scanning confocal microscopic techniques, we investigated the neuroprotective properties of chlorogenic acid-rich Solanum melongena extracts (SM extract) in rotenone-induced PC-12 cell death. The results showed that rotenone caused apoptosis to PC-12 cells by elevating Bax/Bcl-2 ratio and increasing caspase-3 activity. Rotenone also increased ROS in cells while suppressing SOD and catalase activities. This resulted in the depletion of ATP in cells by blocking mitochondria complex I activity. Pretreatment of the cells with SM extract at concentrations of 100, 250, and 500 μg/ml before incubation for 24 hr with rotenone significantly prevented apoptosis, decreased ROS, and increased ATP production in the cells. SM extract upregulated SOD and catalase activities in the cells. These results unveil evidence that SM extract content neuroprotective properties that can be exploited to prevent and treat neurodegenerative diseases. PRACTICAL APPLICATIONS: Solanum melongena eggplant is a popular ingredient in many traditional recipes and is well known in Asia for its medicinal benefits. Despite numerous scientific reports of the potential health benefits of this plant, reports on its effects in neurodegenerative diseases is still lacking. This pilot study demonstrates that S. melongena eggplant can protect against neurotoxicity in neurodegenerative diseases. The results of this research serves as a base for further research on eggplant that will result in its usage on a larger scale as functional food materials.

Keywords: Solanum melongena; PC-12 cell; apoptosis; chlorogenic acid; neuroprotection; oxidative stress; rotenone.

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References

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