SILVIA RICCARDI / SCIENCE PHOTO LIBRARY SILVIA RICCARDI / SCIENCE PHOTO LIBRARY
Induced nerve stem cells. Fluorescence light micrograph of neural (nerve) stem cells that have been created (induced) from human adult skin fibroblast cells by gene manipulation. Tuj1 protein is green, and nestin is blue. Stem cells 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 them a potential source of cells to repair damaged tissue in diseases such as Parkinson's and insulin-dependent diabetes.
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