[Expression of major histocompatibility complex antigens and intercellular adhesion molecule-1 (ICAM-1) on renal cell cancer. De novo expression and modulation by cytokines on renal cell cancer cell lines].
Major histocompatibility complex (MHC) antigens and intercellular adhesion molecule-1 (ICAM-1) play important roles in immune response. In order to investigate the association between renal cell cancer (RCC) and host's immune system, expression of MHC antigens and ICAM-1 was examined on RCC. Immunohistochemical analysis revealed a positive correlation between the expression of MHC antigens and ICAM-1. In general, tumor with higher degree of mononuclear cell infiltration expressed MHC antigens and ICAM-1 more frequently and intensely. Among cytokines which were reported to be potent inducers of ICAM-1 on malignant melanoma cell lines, interferon (IFN)-gamma and tumor necrosis factor (TNF)-alpha augmented the expression of ICAM-1 on ACHN cells whereas ICAM-1 and class I antigens on KRC/Y cells. IFN-alpha enhanced MHC class I antigens but not ICAM-1. Class II antigen expression of both cell lines was augmented by only IFN-gamma. These results suggest that cytokines which could be produced by tumor-infiltrating mononuclear cells, especially IFN-gamma and TNF-alpha, might modulate expression of MHC antigens and ICAM-1, and influence host immune response against RCC.
Department of Urology, Niigata University School of Medicine, Japan.
Y
Y
Tomita
T
T
Nishiyama
S
S
Sato
M
M
Fujiwara
D000328:Adult; D000368:Aged; D002292:Carcinoma, Renal Cell / Q000276:immunology*; D015815:Cell Adhesion Molecules / Q000032:analysis*; D005260:Female; D015395:Histocompatibility Antigens Class I / Q000032:analysis*; D000949:Histocompatibility Antigens Class II / Q000032:analysis*; D006801:Humans; D007124:Immunoenzyme Techniques; D018799:Intercellular Adhesion Molecule-1; D007371:Interferon-gamma / Q000096:biosynthesis / Q000502:physiology*; D007680:Kidney Neoplasms / Q000276:immunology*; D007963:Leukocytes, Mononuclear / Q000276:immunology / Q000378:metabolism; D008297:Male; D008875:Middle Aged; D014407:Tumor Cells, Cultured; D014409:Tumor Necrosis Factor-alpha / Q000096:biosynthesis / Q000502:physiology*
D015815:Cell Adhesion Molecules; D015395:Histocompatibility Antigens Class I; D000949:Histocompatibility Antigens Class II; D014409:Tumor Necrosis Factor-alpha; D018799:Intercellular Adhesion Molecule-1; D007371:Interferon-gamma