Specific biomarkers in cancer

An object of the present invention is to provide a useful means for the development of diagnostic reagents and pharmaceutical etc., and the like such reagents and medicaments against certain diseases. The present invention may be used as a specific biomarker for cancer, novel polypeptide and its specific partial peptide, as well as novel polynucleotides and their specific partial nucleotide; such polynucleotides and their specific partial expression vectors of the peptide; such transformants expression vector has been introduced; antisense molecules against specific biomarkers in cancer, RNAi-inducing nucleic acid (e.g., siRNA), a composition comprising aptamers, antibodies, and their ; expression or function of specific biomarkers in cancer has been adjusted, mammalian cell or non-human mammal; measuring means specific biomarkers in cancer (e.g., a primer set, nucleic acid probes, antibodies, aptamers) , and provides such a reagent containing them.