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논문 기본 정보

자료유형
학술저널
저자정보
Wang, Dingfa (College of Animal Science and Technology, Huazhong Agricultural University) Ma, Qingshan (College of Animal Science and Technology, Huazhong Agricultural University) Zhang, Niya (College of Animal Science and Technology, Huazhong Agricultural University) Qi, Desheng (College of Animal Science and Technology, Huazhong Agricultural University)
저널정보
대한독성유전단백체학회 Molecular & cellular toxicology Molecular & cellular toxicology 제6권 제1호
발행연도
2010.1
수록면
25 - 31 (7page)

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Zearalenone (ZEA) is a nonsteroidal estrogenic mycotoxin and exists widely in the moldy feeds and food. Genistein (GEN) is a natural isoflavone phytoestrogen. ZEA has adverse effects on animal's reproduction performance and immunologic function, also can induce the proliferation of MCF-7 cells. However, the interactive effect of ZEA and GEN on proliferation and cell cycle in MCF-7 cells is remain poorly understood. Here, the interactive effect of ZEA and GEN on proliferation and cell cycle in MCF-7 cells were determined through MTT assay and flow cytometry, respectively. Results demonstrated that ZEA(10 and 20 nM) could stimulate the proliferation of MCF-7 cells and significantly increase S phase distribution (P< 0.05). RT-PCR analysis revealed that ZEA could significantly increase estrogen receptor (ER) $\alpha$ mRNA expression (P < 0.05), while GEN (16 and $32\;{\mu}M$) could inhibit proliferation and lessen S phase distribution of MCF-7 cells (P < 0.05) which were induced by ZEA. In the co-administration treatments of GEN and ZEA, $ER\alpha$ mRNA expression decreased, bcl-2 decreased and bax increased at both mRNA and protein levels compared to those with ZEA alone. These results showed that the proliferative activity of ZEA could be repressed by GEN through regulating the expression of ER, bax and bcl-2 in MCF-7 cells.

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