Dependence of expression of regulatory master genes of embryonic development in pancreatic cancer cells on the intracellular concentration of the master regulator PDX1
Exogenous expression of the gene encoding the pancreatic master regulator PDX1 in cell lines with different degrees of differentiation of pancreatic cancer cells is accompanied by changes in the expression of known master genes involved in cancer progression. In BxPC3PDX+cells, as compared to BxPC3PDX–, we detected an increased expression of the following genes: NKX6.1 (2 times), NR5A2 (2.5 times), KLF5 (1.8 times), ZEB1 (3 times), and ONECUT1 (1.3 times), as well as a decreased expression of MUC1 and SLUG genes (3 and 2 times, respectively). In PANC1PDX+cells, as compared to the control PANC1PDX–cells, we detected a decreased expression of ISL1 (2 times) and an increased expressed of KRT8 (2 times) and MUC1 (by 30%). In the high-grade cell lines (including the BxPC3 line studied), the total content of sites containing the marks of active enhancers was higher than that in the low-grade cell lines (PANC1).
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: 28864896
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