Saving
life by Funding Death
As a
gardener of very limited ability, I have always been fascinated by the
reproduction of Geraniums. You can cut one stem off an adult plant, shove it into
potting compound, add a drop of water, and it grows. The theory behind the use
of human stem-cells is much the same.
The Scientific Issue
Stem-cells
are highly versatile cells in the human organism, which are capable both of
reproducing themselves, and of developing to produce the more specialised cells
out of which human tissue and organs are formed. People sometimes talk in terms
of growing replacement organs but, at the present state of scientific research,
the more realistic possibility is the injection of stem-cells to repair damaged
tissue, muscle, nerves, or even bone. Among the conditions which are
potentially treatable in this way are heart disease, alzheimer’s, and stroke.
For many years leukaemia has been successfully treated by the replacement of
bone-marrow which is an excellent source of stem-cells.
Human stem-cells
can be harvested from a variety of sources. They are classified into two
categories. Embryonic stem-cells are harvested from human embryos. All stem-cells
other than those taken from embryos are referred to as adult stem-cells, and
these can be harvested from a variety of sources including bone marrow, cord
blood, placenta, liver etc.
Some
researchers argue that, because embryonic stem-cells are more versatile, they
have greater potential for medical use than adult stem-cells which, although
they are still quite versatile have already begun to develop. It would be true
to say that a particular embryonic stem-cell is far more versatile than any one
adult stem-cell. But in recent years researchers have come to realise that
there are far more sources of adult stem-cells in the human organism than had
previously been recognised. As a result, the potential for obtaining an adult
stem-cell which is suited to a particular need is far greater than had
previously been thought.
Another
issue which must be faced is that the extreme versatility of embryonic
stem-cells brings its own risks with it. Their versatility also makes them less
predictable. It is not clear that they can always be relied upon to develop as
intended, and there is the risk of bone developing where muscle is required or
vice versa. The careful selection of adult stem-cells, which are further along
the developmental chain, would seem to reduce that risk.
The Ethical Issue
Adult
stem-cells can be harvested without causing harm or loss of life. Provided
proper consent is obtained, and the stem-cells are used for the purpose of
developing treatments, there is no ethical problem about the use of adult
stem-cells. It is to this area of research that the funding should be directed.
But the
harvesting of stem-cells from embryos always results in the destruction of the
embryo. If it were only a haphazard cluster of cells, that would be no problem.
But an embryo, although it is small and can’t smile yet, is a distinct
individual human being in the process of rapid organised development. Modern
research in genetics and in reproductive technology actually helps to
demonstrate that this is true. We now know that a human embryo can live and
develop apart from its mother. We know too that a human embryo is genetically distinct
from its parents, and that all the genetic information that is required for its
development is already present at the single-cell stage. There is no way to
avoid the fact that the destruction of an embryo is the destruction of a human
being.
Researchers
argue that it is acceptable to destroy embryos as long as it is done in a good
cause, and as long as the parents give consent. But the deliberate destruction
of innocent human life is fundamentally evil, and even the prospect of wonderful
new cures does nothing to change that. “The end doesn’t justify the means.”
It has been
suggested that there would be no ethical problem if the research were limited
to so-called “spare” embryos, the by-product of IVF, which are being kept in frozen
storage. The argument is put forward that these embryos are going to be
disposed of anyway, once they reach the end of their “shelf-life,” and we might
as well “give some meaning” to their lives. To be used as raw material for the
pharmaceutical industry is not what gives meaning to the existence of a human
embryo. That meaning is inherent in the act of creation, and we choose either
to respect it or not to respect it. All human beings eventually die, and
embryos are no different. The moral evil is associated not with the fact that
embryos die, but with the fact that somebody decides to kill them.
If there is
a problem about what to do with “surplus” embryos, that problem has its roots
in the assumption that, with IVF, there will always have to be surplus embryos.
But that is not the case. The solution to that particular problem is to avoid generating
“surplus” embryos in the first place.
The Political Issue
On October
29th a delegation from the Irish Catholic Bishops’ Conference met
with the Taoiseach and the Minister for Foreign Affairs. The bishops expressed
their grave concern at the inclusion of a proposal in the Sixth Framework
Programme for Research that the EU should jointly fund destructive research
involving human embryos. The Council of Ministers will vote on the Sixth
Framework Programme at the end of November 2003, and the bishops asked the
Taoiseach to ensure that the Irish delegation votes against the funding of research
on embryos and on embryonic stem-cells.
It speaks
volumes that this issue is being discussed at the EU under the headings of
“trade” and “competitiveness.” Whether
by accident or by design, this carries the implication that human embryos are
commodities or consumer goods. Two years ago,
The
Government now seems to take the view that, as long as destructive embryonic
research is not happening here, then
Successive
Irish governments have told us that we have a significant voice in
As this
matter comes under the heading of trade, the immediate political responsibility
for the vote at the Council of Ministers rests with the Tánaiste, Mary Harney.
But the Tánaiste is only one member of a government which operates by the
principle of collective responsibility. Her vote at the Council of Ministers
must, therefore, be subject to the approval of the cabinet, each member of
which shares with her both the moral and the political responsibility for
whatever position will be taken by the Irish delegation at the Council of
Ministers.