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Overexpression of miR-224 in triple-negative breast cancer. (a) qRT-PCR analysis of miR-224 expression in breast cancer cell lines: MDA-MB-231, MDA-MB-468, T47D, and MCF-7, compared with the MCF-10A cell line; ∗ p < 0.05 and ∗∗ p < 0.01. (b) Levels of miR-224 expression were measured in a group of breast cancer patient samples, including 11 luminal and 22 TNBC subtypes using quantitative real-time PCR.
