Table 2. Expressions of HLA class I in CRC patients, benign colorectal diseases patients and healthy controls.

Groups	HLA class I mRNA	HLA class I protein
Healthy controls	0.99±0.27	145.58±38.14
Benign diseases	0.76±0.19	102.05±35.98*
CRC	0.48±0.21*#	87.44±34.01**#

^*P<0.05, ^**P<0.01, compared with health controls; ^#P<0.05, compared with benign diseases patients.