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Monday December 12, 2005
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Embryonic Stem Cell Therapies to Cure Disease is “Pure Folly”, Says MIT Prof
Reveals Some Scientists Don’t Oppose Embryonic Research Out of Fear of Reprisals
By Terry Vanderheyden
CAMBRIDGE, Massachusetts, December 12, 2005 (LifeSiteNews.com) – A Massachusetts Institute of Technology associate professor has revealed in an interview that many scientists are afraid to criticize embryonic stem-cell research out of fear of reprisals.
“Many scientists who do not support human embryo research are afraid to speak out because of possible reprisals from powerful scientists who can affect grant success, publication acceptances, tenure promotion, and employment,” said Dr. James Sherley, an associate professor of biological engineering at MIT, in an exclusive interview with the web magazine, MercatorNet.
A researcher and proponent of adult stem cells, Professor Sherley said placing hope in embryonic stem cell research for disease cure is “pure folly.” “Embryonic stem cells cannot be used directly [because] they form tumours when transplanted into mature tissues,” he explained.
“It is pure scientific folly to place such emphasis on embryonic stem cells research to the exclusion of support for adult stem cell research. No matter what the hurdles are for success with adult stem cell-based therapy development, embryonic stem cell research faces the same hurdles and more.”
Beyond this enormous hurdle, Sherley says, is “The most profound drawback, which has not been adequately disclosed . . . that [embryonic cells] cannot be used directly to treat mature tissues and organs.”
He explains, “The tissues and organs of the body undergo constant cell turnover. Cells are born by cell division, they turn into functional cells (ie, ‘differentiate’), they function, they get old, they die, and finally they are lost or removed from their tissue or organ. So, to treat mature tissues and organs by giving mature cells produced from embryonic stem cells is not enough. The cells that normally sustain cell turnover are adult stem cells that reside in every tissue and organ which has this cell turnover process, and that is nearly all tissues. This means that, in order to use embryonic stem cells for diseases in mature tissues, they must be turned into adult stem cells.”
Professor Sherley also explained that an embryo, from its first moment of having “diploid DNA” is a human being and therefore must be protected. “Despite the confusion that some like to create on the questions of ‘are embryos human beings?’ and ‘when does a human life begin?’, both scientists and physicians know very well that human embryos are alive and human,” he emphasized. “A human life begins when a diploid complement of human DNA is initiated to begin human development. Therefore, a life can be initiated by the fusion of sperm and egg or by the introduction of a diploid nucleus into an enucleated egg (ie, ‘cloning’).”
“Given that embryos are human beings, they have a right to self and a right to life,” he added. “Exploiting their parts (ie, cells) or killing them for research is moral trespass that society should not allow. Even if the research might, and let’s be clear, might benefit others, this trespass is not justified.”
See the full interview at:
http://www.mercatornet.com/index.php?option=com_content&...
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