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One major obstacle, however, stands in the way: the Missouri anti-abortion lobby and its muscular opposition to embryonic stem-cell research. "Right to Life will not sit silent whenever you're killing a human embryo," says Susan Klein, legislative liaison for Missouri Right to Life. "There's no reason for us to sacrifice the protection of human life in order to advance our economy." Using a technique called somatic cell nuclear transfer, scientists have developed the ability to replace the nucleus of embryonic cells with those of mature cells. The technique is alluring to researchers because embryonic stem cells can mature into any type of cell, a quality scientists say could eventually lead to therapies and cures for now-incurable diseases like multiple sclerosis and Alzheimer's. "This holds the greatest promise of any technique that I've come across," says Steven Teitelbaum, Messing professor of pathology and immunology at Washington University. "We should be moving forward on all fronts." ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn