Expression of estrogen receptor β in human colorectal cancer

Figure 1 mRNA expression of ERα and ERβ in paired repre-sentative tissues from cancer and adjacent normal mucosa. C: cancer, N: normal mucosa. RT-PCR result of β-actin was used to show equal loading.

Figure 2 Immunohistochemical staining of ERβ in CRC and nor-mal colonic mucosa. A: shows the ERβ positive epithelium.×200. B: shows the ERβ positive crypt cell. ×200. C: shows the nuclear and cytoplasmic staining in rectal tubular adenocarcinoma.×200. D: shows the ERβ positive smooth muscle cell and stromal cell. ×400. E shows difuse cytoplasmic staining in CRC. ×400.

Figure 3 Extent of nuclear ER-β immunoreactivity in 40 cases of CRC.