Research Article

Loss of RASSF1A Expression in Colorectal Cancer and Its Association with K-ras Status

Figure 1

Immunohistochemical staining of RASSF1A in the normal tissue, adenoma, and tumor tissue. (a) Positive expression of RASSF1A in colonic epithelium (MaxVision, ×200). (b) Typical mixed nuclear/cytoplasmic immunostaining of RASSF1A in adenoma (MaxVision, ×200). (c) Negative expression of RASSF1A in colonic (or rectal) carcinoma (MaxVision, ×200).
976765.fig.001a
(a)
976765.fig.001b
(b)
976765.fig.001c
(c)