T lymphocytes and cancer cells, SEM

T lymphocytes and cancer cells, SEM

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Caption: T lymphocytes and cancer cells. Coloured scanning electron micrograph (SEM) of T lymphocyte cells (red) attached to cancer cells. T lymphocytes are a type of white blood cell and one of the components of the body's immune system. They recognise a specific site (antigen) on the surface of cancer cells or pathogens and bind to it. Some T lymphocytes then signal for other immune system cells to eliminate the cell. Cytotoxic T lymphocytes eliminate the cell themselves by releasing a protein that forms pores in the cell's membrane. The genetic changes that cause a cell to become cancerous lead to the presentation of tumour antigens on the cell's surface. Magnification: x1600 at 10 centimetres wide.

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Keywords: antigen, antigenic, attacking, binding, cancer, cancerous, cell, cells, coloured, cytotoxic, disease, false-coloured, immune system, immunity, immunology, killer, lymphocytes, malignancy, malignant, medical, medicine, oncology, recognising, scanning electron micrograph, scanning electron microscope, sem, t cell, t lymphocyte, tumour, white blood cell

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