HLA-DR Adenocarcinoma 2 Antigens, Neoplasm 2 Colorectal Neoplasms 2 Colorectal cancer 2 Fluorescent Antibody Technique, Indirect 2 Gene Expression Regulation, Neoplastic 2 HLA DR antigen 2 HLA-DR Antigens 2 Humans 2 Interferon-gamma, Recombinant 2 Interferon-γ 2 Leukocytes, Mononuclear 2 Monocytes 2 article 2 cellular immunity 2 clinical article 2 colorectal cancer 2 controlled study 2 cytokine 2 cytokine production 2 human 2 human cell 2 immune response 2 immunofluorescence 2 leukocyte culture 2 major histocompatibility antigen class 2 2 monocyte 2 mononuclear phagocyte 2 recombinant gamma interferon 2