NANCY KEDERSHA / SCIENCE PHOTO LIBRARY NANCY KEDERSHA / SCIENCE PHOTO LIBRARY
HeLa cancer cells. Immunofluorescent light micrograph of cultured HeLa cancer cells. The nucleus of each cell is pink, cytoplasm is stained red and green fibres of the protein tubulin are seen around each nucleus. Tubulin is used during cell division to divide chromosomes. HeLa cells are the first human cell line, established in 1952 to research cancer. They were obtained from the cervix of Henrietta Lacks, who died of cervical cancer. HeLa cancer cells are used in research worldwide. Immunofluorescence is a staining technique which uses antibodies to attach fluorescent dyes to specific molecules within cells. Magnification: x125 at 6x4.5cm size.
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