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False-colour TEM of killer T-lymphocyte

False-colour TEM of killer T-lymphocyte

P248/0030

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49.9 MB (4.2 MB compressed)

4831 x 3609 pixels

40.9 x 30.5 cm ⏐ 16.1 x 12.0 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 class of white blood cell) after delivering the "kiss of death" to its target cell. T-lymphocytes are involved in cell-mediated 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 & bind to the surface membrane. Dark vesicles between 2 cells represent T-cell enzymes involved in the destruction of the target cell membrane.

Release details

Model release not required. Property release not required.

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