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Hypoxia can induce HIF-1α expression and promote the epithelial-mesenchymal transition (EMT) and invasion of cancer cells. However, their mechanisms remain unclear. The objective of this study was to evaluate the role of Gli-1, an effector of the Hedgehog pathway, in the hypoxia-induced EMT and invasion of breast cancer cells. Human breast cancer MDA-MB-231 cells were transfected with HIF-1α or Gli-1-specific...
Recent advances indicating a key role of microenvironment for tumor progression, we investigated the role of PSCs and hypoxia in pancreatic cancer aggressiveness, and examined the potential protective effect of α-mangostin on hypoxia-driven pancreatic cancer progression. Our data indicate that hypoxic PSCs exploit their oxidative stress due to hypoxia to secrete soluble factors favouring pancreatic...
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