The present invention provides biomarkers for identifying tumors likely to respond to treatment with Wnt pathway inhibitors. Also provided are methods for identifying tumors and/or patients that are likely to be responsive or non-responsive to treatment with a Wnt pathway inhibitor. Methods for treating a patient with cancer are provided, wherein the cancer is predicted to respond to a Wnt pathway inhibitor.本發明提供用於鑑別可能對Wnt途徑抑制劑之治療有反應的腫瘤之生物標記。本發明亦提供用於鑑別可能對Wnt途徑抑制劑之治療有反應或無反應的腫瘤及/或病患之方法。本發明提供用於治療癌症病患之方法,其中該癌症係經預測為對Wnt途徑抑制劑有反應。