FOOD SCIENCE ›› 2013, Vol. 34 ›› Issue (23): 313-316.doi: 10.7506/spkx1002-6630-201323063

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Effect of Fumonisin B1 on the mRNA Expressions of Cell Cycle-related Genes in Human Normal Esophageal Epithelial Cells

WANG Shao-kang,WANG Ting-ting,HUANG Gui-ling,SHI Ruo-fu,YANG Li-gang,DONG Shu-nan,SUN Gui-ju*   

  1. Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Nutrition and Food Hygiene,
    School of Public Health, Southeast University, Nanjing 210009, China
  • Received:2013-10-23 Revised:2013-11-07 Online:2013-12-15 Published:2014-01-03
  • Contact: SUN Gui-ju E-mail:shaokangwang@gmail.com

Abstract:

Epidemiological studies have shown that fumonisin B1 (FB1), a fungal toxin, may be associated with esophageal
cancer, but the laboratory evidence is still limited. In this study, human normal esophageal epithelial cells were isolated and
identified in vitro. The influence of FB1 on the mRNA expression of cell cycle-related genes including Cyclin D1, Cyclin E, P16,
P21, and P27 was determined by reverse transcription-polymerase chain reaction (RT-PCR). The results showed that FB1
played an important role in regulating the expression of Cyclin D1, Cyclin E, P16, P21, and P27 genes in normal human
esophageal epithelial cells at the transcriptional level, leading to high mRNA expression of Cyclin D1 but low mRNA
expression of Cyclin E, P16, P21, and P27 genes. The abnormal expression of cell cycle-related genes is closely related with
cancer. This in vitro study has further confirmed that FB1 is related with the occurrence of human esophageal cancer.

Key words: fumonisin B1, human normal esophageal epithelial cells, cell cycle, gene expression

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