Table 1.

Primary markers of GI CSCs

GI cancer	Markers	References
Gastric cancer	CD44, CD133, EpCAM	[27, 31]
Pancreatic cancer	CD133, CD44, CD24, CXCR4, c‐Met, ALDH, ABCG2, EpCAM	[30]
Liver cancer	CD133, CD49, CD90, CD44, CD24	[26]
Colorectal cancer	CD133, CD44, CD24, CD166, EpCAM	[28]