Biosingularity

T lymphocytes and cancer cell

Posted on: January 31, 2012

T lymphocytes and cancer cell. Coloured scanning electron micrograph (SEM) of T lymphocyte cells (red) attached to a cancer cell. T lymphocytes are a type of white blood cell that 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. The genetic changes that cause a cell to become cancerous lead to the presentation of tumour antigens on the cell’s surface. Magnification: x2300 when printed at 10 centimetres wide.

Source: http://www.sciencephoto.com/media/76117/enlarge

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