Reprogrammed stem cells to mend hearts
Japanese scientists have received approval for the second ever clinical application of induced pluripotent stem (iPS) cells. Wafer-thin sheets of tissue derived from iPS cells will be grafted onto people's’ hearts to help regenerate damaged muscle. iPS cells are created by nudging human cells to revert to an embryonic-like state, from which they can develop into other cell types. But some regenerative medicine specialists worry that Japan’s fast-track system for regenerative medicine could lead to the treatment being sold to patients before it has been proven to work.
Nature | 4 min read
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