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False-colour TEM of killer T-lymphocyte

False-colour TEM of killer T-lymphocyte

P248/0031

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50.3 MB (3.7 MB compressed)

5079 x 3464 pixels

42.9 x 29.2 cm ⏐ 16.9 x 11.5 in (300dpi)

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Credit

EDELMANN / SCIENCE PHOTO LIBRARY EDELMANN / SCIENCE PHOTO LIBRARY

Caption

False-colour transmission electron micrograph (TEM) of a single, activated cytotoxic ("killer") T-lymphocyte (left, a type of white blood cell) after delivering the "kiss of death" to its target cell (right). T-lymphocytes are part of the cell- mediated immune response to invasion of body by foreign microorganisms, notably viruses and some bacteria, which are protected from antibodies (secreted by B-lymphocytes) by their host cells. T-cells recognize antigens on their target cell, releasing enzymes that disrupt the target cells membrane and cause the cell's ultimate destruction.

Release details

Model release not required. Property release not required.

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