Research Article

Thyroid Hormone Status Interferes with Estrogen Target Gene Expression in Breast Cancer Samples in Menopausal Women

Figure 2

Gene expression of known estrogen-stimulated genes in primary cultures of breast tumors. Samples were treated as follows: ethanol vehicle, triiodothyronine (T3), T3 plus tamoxifen (TAM), TAM, estradiol (E2), and E2 plus TAM. After 48 h of treatment, TGFA, TGFB1, and PGR were quantified by real-time RT-PCR. Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) was used to normalize gene expression. Relative mRNA expression was calculated using the expression level of the treated ethanol sample as the standard set to the dotted line and represented by letter “a.” Different letters indicate .
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