PROBLEM TO BE SOLVED: To provide a method for detecting cancer cells, which is capable of easily detecting cancer cells in the peripheral blood in a short time.SOLUTION: The present invention provides a method for detecting cancer cells. The method comprises: contacting a peripheral blood-containing sample including test cells with a labeling substance in vitro； labeling the test cells by allowing the test cells to incorporate the labeling substance； and detecting cells having a higher degree of labeling with the labeling substance than the degree of labeling in the normal cells in the peripheral blood-containing sample as cancer cells.SELECTED DRAWING: None【課題】末梢血中の癌細胞を、短時間且つ簡便に検出可能な癌細胞検出方法を提供する。【解決手段】被検細胞を含む末梢血含有試料と標識用物質とをｉｎ ｖｉｔｒｏにおいて接触させること、前記被検細胞に前記標識用物質を取り込ませて、前記被検細胞を標識させること、及び、前記被検細胞から、末梢血含有試料中の正常細胞の標識度合いよりも、前記標識用物質による標識度合いが強い細胞を、癌細胞として検出すること、を含む癌細胞の検出方法。【選択図】なし
