Methods of treating a tumor in a subject include identifying a subject having, at risk for, or suspected of having a tumor, and administering to the subject an effective amount of an IGFBP7 agent if the tumor has increased Ras-BRAF-MEK-Erk signaling, is dependent for growth and/or survival upon the Ras-BRAF-MEK-Erk signaling pathway, and/or expresses an activated or oncogenic BRAF or RAS.
