| abstract |
Methods of inhibiting tumor growth, methods of treating cancer, and methods of reducing the frequency of cancer stem cells in a tumor are described. Particularly, the methods are directed to tumors or cancers that comprise a K-ras mutation. The methods described comprise administering a DLL4 antagonist (e.g., an antibody that specifically binds the extracellular domain of human DLL4) to a subject. Related polypeptides and polynucleotides, compositions comprising the DLL4 antagonists, and methods of making the DLL4 antagonists are also described. |