h high invasiveness highly expresses stemness- Р related molecules, such as Sox2, OCT4, CD133 and nestin. Р2. The biological characteristics of glioma cell subset with high invasiveness are different Р form that with low invasiveness that is the cell subset with high invasiveness has higher Р clone-forming ability, clone sphere-forming ability and tumorigenic ability. Р3. The expression of ALDH1 in colorectal carcinoma was independent of the clinical Р pathology characteristic such as the age, gender of carcinogenesis of the colorectal Р carcinoma and the colorectal carcinoma's site, infiltration depth, differention, nvasion, Р metastasis, Dukes' stages and so on. Р Р Key word:glioma,invasive,stemness,Aldehyde Dehydrogenase 1; colorectal carcinoma; Р clinical pathology characteristic Р Р 7