National Center for Biotechnology Information NCBI NLM MEDLINE gene expression regulation humans pubmed abstract nih national institutes of health national library of medicine research support non-u.s. gov't Genes neoplastic* proteins / genetics* gene expression profiling* signal transduction homeostasis down-regulation transcription factor 7-like 2 protein Tumor Suppressor wnt proteins beta catenin helix-loop-helix motifs tcf transcription factors pmid:15592505 doi:10.1038/sj.onc.1208303 josé manuel gonzález-sancho oscar aguilera alberto muñoz colonic neoplasms / genetics* colonic neoplasms / pathology* cytoskeletal proteins / pharmacology* dna-binding proteins / pharmacology* intercellular signaling peptides and proteins / pharmacology trans-activators / pharmacology* transcription factors / pharmacology* wnt1 protein