Figure 4From: Effects of curcumin on stem-like cells in human esophageal squamous carcinoma cell lines ALDH1A1 immunocytochemistry. After immunostaining for ALDH1A1, all six ESCC lines and curcumin-surviving lines showed distinct high and low-staining cells. Cells were stained 48 hrs after plating and then staining intensity of individual cells was quantified. “S” indicates curcumin-surviving cell lines. Scale bar = 100 μm.Back to article page