|
Today's News & Views
August 10, 2007
Deja Vu All Over Again
My wife and I spent several hours last night
going through my office, cleaning out junk and categorizing
and filing what remained. To my delight I ran across a copy
of a dissent written in 1988 by NRLC General Counsel James
Bopp, Jr. as a member of the NIH
Human Fetal Tissue
Transplantation Research Panel.
Back in the 1980s, the hullabaloo over tissue
scavenged from the brains of aborted babies was so loud you
had to place your hands over your ears. According to
exuberant proponents, harvested fetal brain tissue was a
medical breakthrough so profound that it would provide the
raw material to cure everything from AIDS and Alzheimer's to
the common cold.
In 1987 NIH had received a request to fund a
proposal to transplant fetal brain tissue into the brain of
a Parkinson's patient. A moratorium was placed on any new
NIH-funded fetal transplants pending convening a panel to
address issues relating to science, ethics, and the legal
status of fetal tissue transplants.
Seventeen of the 21 members of the Human
Fetal Tissue
Transplantation Research Panel were easily
recognized as likely proponents. Thus the final 17-4 tally
in favor caught no one off-guard.
Bopp's dissent to the majority proposal was
brilliant in every sense, not to mention prescient. Although
there were periodic attempts to revive the research, within
a few years of the panel's report the media and medical
circus closed its tents.
It turned out that fetal brain tissue cured
nothing and was profoundly dangerous to the patients who
received the tissue. Some of the side effects were described
as
"absolutely
devastating" in a New England Journal of Medicine
article that reviewed the science. (See
www.nrlc.org/news/2001/NRL03/fetal.html.)
As I began to reread Bopp's critique,
naturally I thought of the same pie-in-the-sky,
this-will-cure-everything propaganda for stem cells
extracted from "surplus embryos" or from cloned human
embryos.
Just as was the case with fetal brain tissue,
embryonic stem cells have yet to show any progress in human
beings. There is an important difference, however, between
fetal brain tissue and embryonic stem cells.
With the latter there are proven
alternatives--options that have worked with human beings
around the world. An article in the August 4 issue of
National Journal gives the reader the necessary
background to fully appreciate the radically different
approaches taken by the United States and much of the rest
of the world.
There are two quotes the reader sees before
he or she begins "Two Roads on Stem-Cell Policy," written by
Neil Munro.
The first is, "The U.S. focuses on using
embryonic stem cells to boost the pharmaceutical industry's
development of drugs"; the second is, "Foreign countries are
using adult stem cells for immediate therapies to help
patients with various diseases."
For our purposes here, the most important
single reminder is that the media "template" (the
description is bioethicist Wesley J. Smith's) is completely
wrong. According to Munro,
"Few companies and researchers are working to
develop embryonic stem cells for transplantation into people
partly because these cells tend to proliferate and produce
teratomas--disorganized, cancer-like tumors of many cell
types. Singapore-based ES Cell International announced in
July that it had stopped trying to develop
embryonic-stem-cell transplants for people suffering from
diabetes and heart problems. 'The likelihood of having
products in the clinic in the short term was vanishingly
small,' Alan Colman, who was chief executive of ESI until
recently, told Science magazine. One of the few U.S.
companies pushing ahead with embryonic-stem-cell transplants
is Geron in Menlo Park, Calif., which hopes to test a
treatment in 2008 for spinal injuries."
Remember how in 2004
then Democratic Vice President nominee Sen. John Edwards,
alluding to embryonic stem cells, boasted that "when John
Kerry is president, people like Christopher Reeve are going
to get up out of their wheelchair and walk again." Although
the general public doesn't know this, practically no one's
crazy enough to say that now for two reasons.
As noted above,
there is the ever-present risk of creating tumors, on the
one hand. On the other hand, most research dollars are "boost[ing]"
the "long-term approach of using embryonic stem cells
in the development of novel drugs to help patients in the
future." (Emphasis mine.) It would not be unfair to say we
are talking about the distant future.
Fortunately, there
are some American companies developing adult stem cell
therapies. And "In Japan, scientists are employing a
breakthrough technique to convert mouse skin cells into
multipurpose embryo-like cells," Munro writes. "If the
technique can be made to work on human cells, a patient's
skin might provide the raw material for a variety of
organ-rejuvenation transplants."
Measurable progress
on every front, except from efforts to use stem cells
harvested from human embryos. And that is good news for
anyone who understands (as President Bush has said),
"Destroying human life in the hopes of saving human life is
not ethical--and it is not the only option before us."
If you have any
comments or questions, please write Dave Andrusko at
daveandrusko@hotmail.com.
|
|