Media gallery
Human embryonic stem cell lines
Caption: Microscopic view of a colony of original human embryonic stem cell lines from the James Thomson lab at the University of Wisconsin-Madison. These cells, which arise at the earliest stages of development, are blank slate cells capable of differentiating into any of the 220 types of cells in the human body. They can provide access to cells for basic research and potential therapies for many types of disease. Thomson, a developmental biologist and professor of anatomy, directed the research group that reported the first isolation of embryonic stem cell lines from a nonhuman primate in 1995, work that led his group to the first successful isolation of human embryonic stem cell lines in 1998. In 2007, Thomson and his colleagues, and a group in Japan, successfully reprogrammed adult skin cells to create the world's first induced pluripotent stem cells, cells that have all the qualities of embryonic stem cells.
Date: 2005
Photo credit: Jeff Miller/University of Wisconsin-Madison/University of Wisconsin-Madison
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