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Pancreatic ductal adenocarcinoma (PDAC) harbors complex molecular alterations and remains a lethal disease. Aberrant TGF-β/Smads signaling is a well-known mechanism involved in the progression of PDACs. However, loss of Smad4 expression is reported in only ~50% of PDACs and is generally associated with worse prognosis. Investigating additional prognostic markers is warranted. PPM1A is a phosphatase...
B-lymphoid tumor cells are often less sensitive than their normal counterparts or insensitive to transforming growth factor beta1 (TGFb) effects. We studied the apoptotic effect of exogenous TGFb in B-lymphoma cells, focusing on the activity and the role of Smad and protein phosphatase/kinase signals. Recombinant TGFb treatment and Smad4 siRNA transfection were used in HT58 B-NHL lymphoma cells in...
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