Figure 3

Immunohistochemical staining of GGH in CRC tissues. γ-Glutamyl hydrolase protein was not detectable in tumour cells in case Nos. 5209 and 2426, in which the GGH mRNA levels were 0.01 and 0.06, respectively. Expression of GGH was observed in tumour cells in case Nos. 4040 and 616, in which the GGH mRNA levels were 3.73 and 8.29, respectively.