Journal of Cancer Research and Therapeutics Close
 

Figure 1: Representative immunohistochemical staining patterns of formalin-fixed paraffin-embedded primary colorectal cancer with human leukocyte antigen Class I antigen. (a) Tumor epithelial cells showing total absence for human leukocyte antigen Class I and only stromal and infiltrative cells show positive staining for human leukocyte antigen Class I. (b) Expression of human leukocyte antigen Class I in <50% tumor cells. (c) Expression of human leukocyte antigen Class I in >50% tumor cells (×20)

Figure 1: Representative immunohistochemical staining patterns of formalin-fixed paraffin-embedded primary colorectal cancer with human  leukocyte antigen Class I antigen. (a) Tumor epithelial cells showing total absence for human leukocyte antigen Class I and only stromal and infiltrative cells show positive staining for human leukocyte antigen Class I. (b) Expression of human leukocyte antigen Class I in <50% tumor cells. (c) Expression of human leukocyte antigen Class I in >50%  tumor cells (×20)