Overexpression of insulin-like growth factor binding protein (IGFBP)-4 results in increased proliferation rate and MUC3 expression in HT-29 cells: M.R. Corkins, J.A. Vanderhoof, D.H. Slentz, R.G. MacDonald, M.A. Hollingsworth, D.R. Mack. Depts of Pediatrics, Biomedical Sciences, Biochemistry and Molecular Biology, Eppley Research Institute, Creighton University and University of Nebraska Medical Center, Omaha, NE