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Full-Text Articles in Medicine and Health Sciences
Phosphorylation Of Vasodilator-Stimulated Phosphoprotein Ser239 Suppresses Filopodia And Invadopodia In Colon Cancer., David S Zuzga, Joshua Pelta-Heller, Peng Li, Alessandro Bombonati, Scott A Waldman, Giovanni Mario Pitari
Phosphorylation Of Vasodilator-Stimulated Phosphoprotein Ser239 Suppresses Filopodia And Invadopodia In Colon Cancer., David S Zuzga, Joshua Pelta-Heller, Peng Li, Alessandro Bombonati, Scott A Waldman, Giovanni Mario Pitari
Department of Pharmacology and Experimental Therapeutics Faculty Papers
In colorectal cancer, the antitumorigenic guanylyl cyclase C (GCC) signalome is defective reflecting ligand deprivation from downregulation of endogenous hormone expression. Although the proximal intracellular mediators of that signal transduction system, including cyclic guanosine monophosphate (cGMP) and cGMP-dependent protein kinase (PKG), are well characterized, the functional significance of its distal effectors remain vague. Dysregulation of ligand-dependent GCC signaling through vasodilator-stimulated phosphoprotein (VASP), an actin-binding protein implicated in membrane protrusion dynamics, drastically reduced cGMP-dependent VASP phosphorylation levels in colorectal tumors from patients. Restoration of cGMP-dependent VASP phosphorylation by GCC agonists suppressed the number and length of locomotory (filopodia) and invasive (invadopodia) …
Molecular Staging Individualizing Cancer Management, Alex Mejia, Stephanie Schulz, Terry Hyslop, David S. Weinberg, Scott A. Waldman
Molecular Staging Individualizing Cancer Management, Alex Mejia, Stephanie Schulz, Terry Hyslop, David S. Weinberg, Scott A. Waldman
Department of Pharmacology and Experimental Therapeutics Faculty Papers
Although the most important prognostic and predictive marker in colorectal cancer is tumor cells in lymph nodes, ∼30% of patients who are node-negative die from occult metastases. Molecular staging employing specific markers and sensitive detection technologies has emerged as a powerful platform to assess prognosis in node-negative colon cancer. Integrating molecular staging into algorithms that individualize patient management will require validation and the definition of relationships between occult tumor cells, prognosis, and responses to chemotherapy. J. Surg. Oncol. 2012; 105:468-474. © 2012 Wiley Periodicals, Inc.
Copyright © 2012 Wiley Periodicals, Inc.