Table 1: Putative CSC makers in solid tumors.

CSC markersTumor types% CSC markersMinimal cell no.Refs
in tumor cellsfor tumor formation

CD4 /CD2 Breast11–35200[18]
CD4 Head and neck0.1–425000[57]
Prostate0.3–38100[26]
CD4 /EpCA Colon0.03–38200[31]
CD4 /CD2 /ES Pancreas0.2–0.8100[27]
ALDH Breast3–10500[71]
CD13 Brain6–29100[21]
Brain2-3500[39]
Colon1.8–25200[40]
Colon0.7–63000[27]
Head and neck0.8–4.21000[60]
Pancreas1–3500[32]
Lung0.32–22 [19]
Side populationProstate0.05–0.2100[33]
ABCG Melanoma1.6–20 [30]