Method for estimating Gleason score of prostate cancer, method for estimating pathological staging, and method for obtaining auxiliary information based on content of specific PSA in specimen

摘要

The present invention provides a method for obtaining various types of auxiliary information for diagnosis or treatment of prostate cancer, which can be performed with low invasiveness and low cost. By measuring the content of PSA (Prostate Specific Antigen) having a β-N-acetylgalactosamine residue at the non-reducing end of the sugar chain in the sample, and comparing the measured value with a threshold value, (1) A method for estimating that the Gleason score (primary pattern and secondary pattern) is greater than or less than a predetermined value, (2) a method for estimating that the pathological stage classification (pT) is greater than or less than a predetermined value, And (3) This is a method for obtaining judgment information that diagnosis or treatment should be actively performed because GS at the time of total excision is expected to be higher than GS at the time of biopsy.