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- _4 value "The ability of TGF-beta1 to induce BGN mRNA was critically dependent on Smad signaling, since 1) the up-regulation of BGN mRNA was preceded by a marked increase in Smad2 phosphorylation in TGF-beta1-treated PANC-1 cells, 2) TGF-beta1 was unable to induce BGN mRNA in pancreatic carcinoma cell lines that carry homozygous deletions of the Smad4/DPC4 gene, 3) inhibition of the Smad pathway in PANC-1 cells by transfection with a dominant negative Smad4/DPC4 mutant significantly reduced TGF-beta1-induced BGN mRNA expression, 4) stable reintroduction of wild type Smad4/DPC4 into Smad4-null CFPAC-1 cells restored the TGF-beta1 effect," provenance.
- _4 wasQuotedFrom 12140283 provenance.