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The Dallas Morning News
Sunday | February 4, 2001

UK leads stem cell research
Abortion, cloning foes oppose efforts
02/05/2001
By Gregory Katz / The Dallas Morning News
LONDON – British scientists looking to cure a wide range of diseases
including Alzheimer's and Parkinson's have moved ahead of competitors
in the United States and Europe after receiving government backing for
the cloning of stem cells from human embryos.
Medical researchers believe that the use of embryonic stem cells –
versatile cells in a developing embryo that can give rise to any type of
body tissue – may also prove effective in the treatment of heart disease,
cancer, diabetes and other deadly diseases.
Scientists believe that stem cells from human embryos may be injected
into patients and used to "grow" healthy tissue and organs that can
replace body parts malfunctioning because of disease.
The British government is in favor of the controversial new research,
despite expressed fears that it may lead to human cloning. In the United
States, officials are taking a more cautious approach, in part because of
staunch opposition from the influential anti-abortion lobby, which
regards research on embryos as unacceptable. President Bush plans a
review of government policy on embryonic stem cell research with an
eye toward slowing it down.
In Britain, leaders of the Christian, Muslim and Jewish communities have
urged a go-slow approach to the research involving human embryos,
but their concerns have failed to derail the new legislation, which is
much more permissive than current rules on government research both
in the United States and elsewhere in Europe.
"Our government is driving stem cell research in a way that the U.S.
government is not," said Lord Cary, who backed the proposal in the
House of Lords last month. "We don't have the organized anti-abortion
lobby that exists in the United States, and the Church of England is
much weaker than it used to be as we have become a more secular
society."

Swayed by potential
He said the scientific lobby is simply more influential than the religious
lobby in today's Britain. And expert testimony suggesting that
embryonic stem cell research could provide important breakthroughs
within the next 25 years swayed lawmakers, he said.
"We see this offering many positive possibilities," he said. "There may
be treatment for muscular dystrophy, and congenital defects may be
corrected. Diabetes may be eliminated."
In the case of diabetes, for example, it is believed that stem cells could
be developed into cells that can produce insulin. Researchers expect
tests of this technique to begin within the next few years.
While opposition in the United States has focused on the use of human
embryos for research, opposition in Britain has come instead from
people who worry that this is the first step toward human cloning and
the eventual stockpiling of human organs for use by wealthy individuals.
"There are fears of Frankenstein babies," Lord Cary said. "Human
cloning is abhorrent. That would lead to spare parts. But the legislation
against it is very strong, although there will be unscrupulous people
who are tempted to try it."
Only three companies in Britain are conducting embryonic stem cell
research, along with a handful of academics, but this number is expected
to increase sharply with the new rules endorsed by Parliament.
"Most of the work is being done with mice, but my prediction is that
human work will start now and new companies will move in because of
the change in the British regulatory environment," said Simon Best,
chairman of the Ethics Committee at Bio, a U.S. trade association of
companies involved in bio-technology research.
Britain's rapid embrace of embryonic stem cell research has angered
some European leaders who feel the medical advantages offered by stem
cells have been exaggerated while the ethical implications of the
research have not been adequately studied.
German Health Minister Andrea Fischer complained publicly that Britain
had failed to address the possible dangers of the research. She also said
there was no proof that stem cell therapy would be effective.
And Noelle Lenior, chairman of the European Union's Ethical Committee,
said Britain's action "raises the problem of the use of embryos to an
almost industrial level."

Safeguards touted
Researchers in Britain and the United States who are anxious to avoid
antagonizing the powerful anti-abortion community stress that the
human embryos used for the isolation of stem cells do not come from
pregnancies that were aborted for research purposes.
They maintain that the only embryos used for the research come from
two sources: women who aborted their pregnancies very early for
unrelated reasons and agreed to have the embryos used for medical
purposes, and from fertility clinics where successful treatment led to the
creation of too many embryos for a woman to safely carry.
But these caveats have failed to win over skeptics in the United States,
and senior specialists in Britain believe they still may face organized
opposition from the emerging right-to-life lobby.
Britain's Pro-Life Alliance is already preparing a court challenge to the
new legislation, and the charitable group Life – with 35,000 members – is
considering various ways to try to prevent research on embryos.

'Very disturbing'
Rachel Heath, a spokeswoman for Life, said the potential benefits of
stem cells could be realized by using stem cells from adults, making it
unnecessary to extract the cells from embryos. She said the group
vehemently objects to withdrawing cells from embryos and developing
those cells into human tissue.
"Creating embryos in a petri dish is completely opposite to what we
believe," she said. "This technology, if it works, would make it legal to
extract cells from embryos and program the cells to create tissues and
organs, which is basically creating life. We're surprised at how quickly
this passed. Obviously for scientists in the United Kingdom to be ahead
of everyone else in this is very exciting, but we find it very disturbing."
She also said it was naοve for the government to maintain that strict
regulation of the industry would prevent the cloning of human beings.
Keith Campbell, a University of Nottingham professor who played a key
role in the cloning of Dolly the sheep at the Roslin Institute in Scotland,
said he believes the views of the pro-life lobby are not widely endorsed
in Britain because many people have been convinced that stem cells
offer important health-care advances.

'The same arguments'
"We are getting the same arguments that are made in the United States
against this research," he said. "There are groups that believe that life
begins at conception and that you should not do any research involving
embryos at all. But we have also been able to inform people of the
potential benefits, and once they learn about it they are much more likely
to be in favor of it."
He said that stem cells from embryos are unique because they have the
potential to be developed into virtually any type of human cell,
including blood, muscle and nerve cells.
"They have the ability to become any of the specialized cells within the
body," he said. "Broadly, I would say they may be a major breakthrough
in human medicine that will improve the quality of life for a large number
of the population, particularly those with age-related disorders. We may
be able to improve the immune system and treat HIV."
The stem cell research has also been endorsed by Britain's chief medical
officer and by the respected British Medical Journal.
Associate editor Tessa Richards, who wrote the journal's editorial in
support of the research, said she has some misgivings about using stem
cells from embryos and is also concerned that the researchers touting
the proposed new technology may have overstated the potential
medical benefits.

Regulation favored
She also said recent advances have suggested that it may indeed be
possible to make great advances using adult stem cells without resorting
to the use of cells from embryos.
But she said she was convinced by arguments that the research will
continue regardless of whether it is approved – particularly in privately
funded projects in the United States – and that it is preferable to have
stem cell inquiries conducted in an open environment with government
regulation to prevent abuses.
"It's unquestionably very exciting research," she said. "Coming at it with
evidence, logic suggests it should go forward. But I fully understand the
people who are opposed."

(c) 2001 The Dallas Morning News
http://www.dallasnews.com/world/279553_stemcells_05in.html

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