Word: stemming
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Dates: during 2000-2009
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...perfectly happy to accept the fact that Rome was not built in a day. So why, scientists wonder, do we cling so desperately to the idea that stem cell miracles are just around the corner...
...This is the daunting public relations conundrum of the stem cell researcher: Encourage interest, but manage expectations carefully. The careful balancing act, which has become quite familiar this year, was in evidence again Tuesday when scientists at the University of Wisconsin, Madison announced they had successfully cultivated blood cells from embryonic stem cells...
President Bush's decision to fund work on some 60-odd existing colonies of human stem cells, and only those colonies, hit a serious snag last week with the revelation that virtually all stem cells are cultivated using embryonic mouse tissue. The mouse cells provide the human ones with nutrients and growth factors crucial to their survival and proliferation. The problem: under FDA rules, mouse-fed stem cells given to treat human patients would be considered a "xenotransplant," or tissue from another species. Although hundreds of patients have received liver and fetal cells from pigs without any sign of foreign...
...when it comes to research on the basic stem cells themselves, WARF and WiCell insist that they are planning to get as many independent researchers involved as possible to maximize the chance that something useful will come of stem cells. Those researchers will have to pay WiCell a nominal fee--$5,000--and may have to share royalties with the foundation on any commercially successful therapies...
...negotiations this week will apply only to scientists who work directly for the federal agency. But according to NIH officials, any agreement will serve as a future guideline for all researchers who get government stem-cell funding. And unless the NIH and the folks from Wisconsin are badly overestimating the goodwill on both sides, those guidelines shouldn't be awfully hard to live...