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Abstract Title:

Naringenin causes ASK1-induced apoptosis via reactive oxygen species in human pancreatic cancer cells.

Abstract Source:

Food Chem Toxicol. 2016 Nov 9. Epub 2016 Aug 9. PMID: 27838343

Abstract Author(s):

Hyun Jin Park, Jeong Hyun Lee, Myeong Jin Nam

Article Affiliation:

Hyun Jin Park

Abstract:

Naringenin, one of the most abundant flavonoids in natural citrus fruits, has been investigated for its ability to inhibit growth of breast, colon, gastric and prostate cancer cells. However, naringenin-induced cell death in pancreatic cancer is not well understood. Therefore, we analyzed the naringenin-induced apoptosis mechanism using human pancreatic cancer SNU-213 cells. Annexin V+/PI + marked cells increased from 5.10% to 8.29%, 25.06% and 35.31% in response to treatment with 200, 400, and 600 μM naringenin, respectively. Two-dimensional electrophoresis to identify possible target-related proteins of naringenin-induced apoptosis revealed seven proteins. Among these, the expression of peroxiredoxin-1 (Prdx-1), which modulates redox homeostasis of cells, was decreased. To obtain a broad understanding of the interactive mechanism of naringenin and Prdx-1, we observed changes in reactive oxygen species (ROS) in naringenin-treated SNU-213 cells. TheROS levels were 130.02 ± 20.21%, 182.04 ± 5.39%, and 237.21 ± 12.71% in response to 200, 400, and 600 μM naringenin treatment, respectively. Increases in ROS were followed by up-regulation of apoptosis signal-regulation kinase 1 (ASK1). Moreover, the JNK, p38 and p53 proteins were upregulated. Overall, the results of this study suggest that naringenin causes ASK1-induced apoptosis mediated by ROS.

Study Type : Human In Vitro

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Sayer Ji
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