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- _6 label "Selventa" provenance.
- large_corpus.bel rights "Copyright (c) 2011-2012, Selventa. All rights reserved." provenance.
- _5 value "We found that Dickkopf (Dkk)-3, a member of Dkk family of Wnt antagonists, is frequently inactivated in lung cancer and plays a role in suppressing lung cancer cell growth through inhibition of beta-catenin/T-cell factor (TCF)-4 signaling. Dkk3 is the only Dkk family member abundantly expressed in normal lung, but silenced by promoter hypermethylation in a large fraction of lung cancer cell lines and lung tumors. Downregulation of Dkk3 was correlated with tumor progression and expression of nuclear beta-catenin in lung tumors. Ectopic expression of Dkk3 in lung cancer cells with Dkk3 hypermethylation induced apoptosis and inhibited TCF-4 activity as well as nuclear accumulation of beta-catenin and expression of TCF-4 targets c-Myc and cyclin D1. Furthermore, small interference RNA knock down of Dkk3 in cells lacking Dkk3 hypermethylation was sufficient to promote cell proliferation, beta-catenin nuclear translocation and expression of c-Myc. These observations suggested that epigenetic inactivation of Dkk3 activates the Wnt/beta-catenin pathway, thereby promoting the growth of lung cancer cells." provenance.
- _5 wasQuotedFrom 18048388 provenance.
- assertion hadPrimarySource 18048388 provenance.
- large_corpus.bel title "BEL Framework Large Corpus Document" provenance.
- large_corpus.bel description "Approximately 61,000 statements." provenance.
- assertion wasDerivedFrom large_corpus.bel provenance.
- assertion wasDerivedFrom _5 provenance.
- large_corpus.bel authoredBy _6 provenance.
- large_corpus.bel version "20131211" provenance.