EFFECTS OF GENISTEIN ON TUMOR-ASSOCIATED GENE EXPRESSION IN MCF-7 CELLS
- VernacularTitle:染料木黄酮对MCF-7细胞肿瘤相关基因表达的影响
- Author:
Zengli YU
;
Lishi ZHANG
;
Deshen WU
- Publication Type:Journal Article
- Keywords:
genistein;
MCF-7 cells;
cDNA microarray
- From:
Acta Nutrimenta Sinica
1956;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To characterize the effects of genistein (GS) on tumor-associated gene expression in MCF-7 cells and to explore the mechanisms. Method: MCF-7 cells were treated with GS (75?10-6 mol/L) or with vehicle (0.1% ethanol, EtOH) for 72 h. The cells were collected and total RNA was extracted, marked by two different fluorescence dyes (Cy3 and Cy5) using reverse transcriptional reaction, respectively. The derived cRNA was hybridized to human tumor-associated microarrays. Data were processed using the Scan Array 3000 and ontological analysis was performed using the Ima Gene 3.0 software. Results: At 72 h, 18 transcripts were downregulated compared to EtOH vehicle control by greater than 2- fold and 4 were upregulated by less than 0.5-fold. The predominant ontological groupings were oncogenes, cell proliferation, apoptosis, and estrogen-regulation genes. Conclusion: GS treatment is associated with significant changes in gene expression in several functional categories in MCF-7 cells, and this might account for the role of genistein in prevention of breast cancer.
