Stem cell, SEM

Stem cell, SEM

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Credit: DAVID SCHARF/SCIENCE PHOTO LIBRARY

Caption: Stem cell. Coloured scanning electron micrograph (SEM) of a human embryonic stem cell (HESC). HESCs are pluripotent, they are able to differentiate into any of the 200 cell types in the human body. The type of cell they mature into depends upon the biochemical signals received by the immature cells. This ability makes HESCs a potential source of cells to repair damaged tissue in diseases such as Parkinson's and insulin-dependent diabetes. HESCs could also be used to grow organs for transplant that would not be rejected. However, research using HESCs is controversial as it requires the destruction of an embryo. Magnification: x5200 when printed at 10 centimetres wide.

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Keywords: biological, biology, cell, cells, colony, coloured, culture, cultured, developmental biology, false-coloured, genetics, hesc, human embryonic stem cell, medical, medicine, microbiology, pluripotent, precursor cell, scanning electron micrograph, scanning electron microscope, sem, therapeutic, therapy, treatment

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