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Koch Institute and Whitehead Institute scientists have developed a new technique for growing human embryonic stem (ES) and induced pluripotent stem (iPS) cells. The research was published online this week in the Proceedings of the National Academy of Sciences. Scientists found that by placing polystyrene cell culture plates under UV radiation for a mere 2.5 minutes, they can generate surface chemistries that promote impressive stem cell growth. This new surface triples growth in culture and eliminates the need for layers of contaminating “feeder cells.” Because ES and iPS cells can regenerate and become almost any cell type, they can help scientists model difficult-to-study diseases like cancer, Parkinson's and Alzheimer's, and could one day be used for therapeutic transplantation.
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