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Expression of cell adhesion molecules in human melanoma cell lines and their role in cytotoxicity mediated by tumor-infiltrating lymphocytes. 1992

F Pandolfi, and L Trentin, and L A Boyle, and I Stamenkovic, and H R Byers, and R B Colvin, and J T Kurnick
Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston.

The role of cell adhesion molecules (CAM) LFA1, ICAM-1, LFA3, VLA1, VLA4, CD29, CD44, and CD56 in tumor-infiltrating lymphocyte (TIL) and natural killer cell (NK)-mediated killing of target cells was studied. Melanoma cell lines and autologous TIL were derived from seven patients with metastatic melanoma, and cytotoxicity assays were done in the presence and absence of monoclonal antibodies (MoAb) to CAM expressed on melanoma cells or TIL. The melanoma cell lines analyzed were all positive for CD29 and LFA3 expression, negative for LFA1 expression, but showed variable expression of ICAM-1, VLA1, VLA4, CD44, and CD56. The effects of anti-CAM antibodies on TIL-mediated melanoma killing fell into three categories: (1) consistent inhibition of TIL-mediated killing was observed when melanoma cells were pretreated with anti-ICAM1 and anti-LFA-3 MoAb or when TIL were pretreated with anti-LFA1; (2) no effect was observed when melanoma cells were pretreated with anti-CD56; or (3) a discreet, but significant, inhibition was observed when target cells were pretreated with anti-CD29, anti-VLA1, anti-VLA4, and anti-CD44. Cytotoxicity was significantly enhanced by pretreatment of target cells with gamma-interferon (gamma-IFN), although gamma-IFN did not augment surface expression of the CAM studied. The NK-mediated killing of K562 cells was blocked by anti-LFA1, anti-CD18, and anti-ICAM, and partially inhibited by anti-CD44 MoAb. Together, these results suggest that several accessory CAM may play a role in regulating cellular cytotoxicity. Because cytotoxicity generally correlated with the level of expression of CAM in melanoma cells, weak CAM surface expression may provide a means for melanomas to escape immune surveillance.

UI MeSH Term Description Entries
D007371 Interferon-gamma The major interferon produced by mitogenically or antigenically stimulated LYMPHOCYTES. It is structurally different from TYPE I INTERFERON and its major activity is immunoregulation. It has been implicated in the expression of CLASS II HISTOCOMPATIBILITY ANTIGENS in cells that do not normally produce them, leading to AUTOIMMUNE DISEASES. Interferon Type II,Interferon, Immune,gamma-Interferon,Interferon, gamma,Type II Interferon,Immune Interferon,Interferon, Type II
D008545 Melanoma A malignant neoplasm derived from cells that are capable of forming melanin, which may occur in the skin of any part of the body, in the eye, or, rarely, in the mucous membranes of the genitalia, anus, oral cavity, or other sites. It occurs mostly in adults and may originate de novo or from a pigmented nevus or malignant lentigo. Melanomas frequently metastasize widely, and the regional lymph nodes, liver, lungs, and brain are likely to be involved. The incidence of malignant skin melanomas is rising rapidly in all parts of the world. (Stedman, 25th ed; from Rook et al., Textbook of Dermatology, 4th ed, p2445) Malignant Melanoma,Malignant Melanomas,Melanoma, Malignant,Melanomas,Melanomas, Malignant
D003602 Cytotoxicity, Immunologic The phenomenon of target cell destruction by immunologically active effector cells. It may be brought about directly by sensitized T-lymphocytes or by lymphoid or myeloid "killer" cells, or it may be mediated by cytotoxic antibody, cytotoxic factor released by lymphoid cells, or complement. Tumoricidal Activity, Immunologic,Immunologic Cytotoxicity,Immunologic Tumoricidal Activities,Immunologic Tumoricidal Activity,Tumoricidal Activities, Immunologic
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000911 Antibodies, Monoclonal Antibodies produced by a single clone of cells. Monoclonal Antibodies,Monoclonal Antibody,Antibody, Monoclonal
D014407 Tumor Cells, Cultured Cells grown in vitro from neoplastic tissue. If they can be established as a TUMOR CELL LINE, they can be propagated in cell culture indefinitely. Cultured Tumor Cells,Neoplastic Cells, Cultured,Cultured Neoplastic Cells,Cell, Cultured Neoplastic,Cell, Cultured Tumor,Cells, Cultured Neoplastic,Cells, Cultured Tumor,Cultured Neoplastic Cell,Cultured Tumor Cell,Neoplastic Cell, Cultured,Tumor Cell, Cultured
D015536 Down-Regulation A negative regulatory effect on physiological processes at the molecular, cellular, or systemic level. At the molecular level, the major regulatory sites include membrane receptors, genes (GENE EXPRESSION REGULATION), mRNAs (RNA, MESSENGER), and proteins. Receptor Down-Regulation,Down-Regulation (Physiology),Downregulation,Down Regulation,Down-Regulation, Receptor
D015815 Cell Adhesion Molecules Surface ligands, usually glycoproteins, that mediate cell-to-cell adhesion. Their functions include the assembly and interconnection of various vertebrate systems, as well as maintenance of tissue integration, wound healing, morphogenic movements, cellular migrations, and metastasis. Cell Adhesion Molecule,Intercellular Adhesion Molecule,Intercellular Adhesion Molecules,Leukocyte Adhesion Molecule,Leukocyte Adhesion Molecules,Saccharide-Mediated Cell Adhesion Molecules,Saccharide Mediated Cell Adhesion Molecules,Adhesion Molecule, Cell,Adhesion Molecule, Intercellular,Adhesion Molecule, Leukocyte,Adhesion Molecules, Cell,Adhesion Molecules, Intercellular,Adhesion Molecules, Leukocyte,Molecule, Cell Adhesion,Molecule, Intercellular Adhesion,Molecule, Leukocyte Adhesion,Molecules, Cell Adhesion,Molecules, Intercellular Adhesion,Molecules, Leukocyte Adhesion
D016246 Lymphocytes, Tumor-Infiltrating Lymphocytes that show specificity for autologous tumor cells. Ex vivo isolation and culturing of TIL with interleukin-2, followed by reinfusion into the patient, is one form of adoptive immunotherapy of cancer. Tumor Infiltrating Lymphocyte,Tumor-Derived Activated Cell,Tumor-Derived Activated Cells,Tumor-Infiltrating Lymphocyte,Tumor-Infiltrating Lymphocytes,Activated Cell, Tumor-Derived,Activated Cells, Tumor-Derived,Infiltrating Lymphocyte, Tumor,Infiltrating Lymphocytes, Tumor,Lymphocyte, Tumor Infiltrating,Lymphocyte, Tumor-Infiltrating,Lymphocytes, Tumor Infiltrating,Tumor Derived Activated Cell,Tumor Derived Activated Cells,Tumor Infiltrating Lymphocytes

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