Prion spread at cellular level

Prion spread at cellular level

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This image is part of the feature Science Photo Library - September Monthly Focus

Credit: RUSSELL KIGHTLEY/SCIENCE PHOTO LIBRARY

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Caption: Prion spread. Artwork of a theoretical basis for the spread of prions at a cellular level. Prions are abnormal proteins that are the cause of transmissible spongiform encephalopathies (TSEs), such as BSE in cows, scrapie in sheep and CJD (Creutzfeldt-Jakob disease) in humans. They cause fatal brain and nerve degeneration. A normal form of prion protein (tiny green balls, lower centre) is made with instructions from cell nuclei (brown, one at bottom right). The prions (pink balls, upper right) are a different shape of this normal prion protein, and cause the normal ones to flip to the abnormal shape. Spread may be by nerve cells (top left) & white blood cells (lower left).

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Keywords: artwork, biological, biology, blood vessel, bovine, bse, cell, cells, cellular, cjd, condition, cow, creutzfeldt-jakob, disease, disorder, endoplasmic reticulum, erythrocyte, erythrocytes, genetic, golgi, healthcare, illustration, leucocyte, leucocytes, leukocyte, mad, medical, medicine, microbiology, molecular, nerve cell, neurology, neuron, neurone, nucleus, pathogen, pathological, pathology, prion, prions, protein, proteins, red, rough, scrapie, spongiform encephalopathy, synthesis, transmissible, tse, vesicle, vesicles, white

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