Difference between revisions of "Stem cell"
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Revision as of 14:24, April 12, 2008
Stem cells have the remarkable potential to develop into many different cell types in the body. When a stem cell divides, each new cell has the potential to either remain a stem cell or to become another type of cell with a more specialized function, such as a muscle cell, a red blood cell, or a brain cell. Serving as a sort of repair system for the body, they can theoretically divide without limit to replenish other cells as long as the organism is still alive.
- Broadly speaking, a stem cell is one that – in the course of cell division and increase in the numbers of cells – is able to reproduce itself and also mature into various specialized types of cells. The stem cell with the greatest potential (totipotential) is the fertilized egg cell, which is capable of developing into a complete organism. [1]
Controversy over human embryonic stem cell research
Wolfgang Lillge, M.D. wrote:
- The question of stem cells is currently the dominant subject in the debate over biotechnology and human genetics: Should we use embryonic stem cells or adult stem cells for future medical therapies? [2]
