The pioneering stem-cell trial is the first to explore whether cells known as induced pluripotent stem (iPS) cells can be used to treat disease. It has been halted after researchers discovered genetic mutations in the cells of a participant, New Scientist reports. One of the mutations may carry a remote risk of cancer.
The trial used skin cells that were turned into retinal cells in an attempt to reverse the damage to eyes caused by age-related macular degeneration.
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