Abstract

There are three main cascades - WNT, Hedgehog and NOTCH, occur in cancer stem cells during the cancerogenesis. However, the conducted studies indicate the existence of other signaling mechanisms of regulation - NF-kB and PI3K signaling pathways. In our work, we investigated the expression of NF-kB, PI3K, PTEN molecules, as well as WNT, Hedgehog, NOTCH in cells of triple negative and HER-2 overexpressed breast cancer with high and low content of cancer stem cells (positive and negative ALDH1A1 expression).

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