Method, biomarker and diagnostic agent for detection of high-risk prostate cancer

    公开(公告)号:US11226334B2

    公开(公告)日:2022-01-18

    申请号:US16073217

    申请日:2017-02-03

    IPC分类号: G01N33/493 G01N33/574

    摘要: [Problem] To provide a method for detecting high-risk prostate cancer, for the purpose of providing useful information, such as necessity of biopsy, to a test-positive patient in a PSA test.
    [Solution] The method for detecting high-risk prostate cancer according to the present invention comprises reacting a PSA contained in a sample composed of urine collected from a human body which is suspected to be suffering from prostate cancer with (1) a fucose α1→6 affinitive lectin which has a characteristic property that the lectin has affinity expressed by a binding constant of 1.0×104 M−1 or more (at 25° C.) for an α1→6 fucose sugar chain No. 405. The fucose α1→6 affinitive lectin is preferably (2) a fucose α1→6 specific lectin which has a characteristic property that the lectin has a binding constant of 1.0×104 M−1 or less (at 25° C.) for a sugar chain No. 003 that does not contain α1→6 fucose and a glycolipid-type sugar chain No. 909 that does not contain α1→6 fucose.