NANCY KEDERSHA / IMMUNOGEN / SCIENCE PHOTO LIBRARY NANCY KEDERSHA / IMMUNOGEN / SCIENCE PHOTO LIBRARY
Immunofluorescent Light Micrograph of melanoma cancer cells invading the skin epithelium, seen in a culture preparation. At centre is a tumour of cancer (orange) derived from melanin-forming cells of the skin. Normal epithelial skin cells are green. Each cell nucleus stains blue. Melanoma is a highly malignant cancer consisting of large undifferentiated cells with a capacity to divide rapidly and invade surrounding healthy tissue. Immunofluorescence is a staining technique which uses antibodies to attach fluorescent dyes to specific tissues and to molecules within the cell. Magnification: x400 at 35mm size, x750 at 6x4.5cm.
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