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WASHINGTON -- Researchers at a U.S. company trying to push the margins of stem cell research said on Friday they had grown human embryonic stem cells using a non-controversial method that did not harm the embryos.
They said they had grown several lines, or batches, of the cells using a single cell taken from an embryo, which they then froze unharmed.
"We generated three new lines," Dr. Robert Lanza of Advanced Cell Technology Inc. told Reuters.
"These are first human embryonic cell lines in existence that didn't result from the destruction of an embryo."
Lanza gave a brief summary of the work to a meeting of the International Society for Stem Cell Research in Cairns, Australia this week. He plans to publish details in a medical journal.
ACT hopes the approach might bypass objections to human embryonic stem cell research. U.S. President George W. Bush vetoed a bill this week that would have broadened federal funding of such work.
Researchers say these cells, taken from days-old embryos, might provide a way to regenerate all sorts of tissues, blood and perhaps...