Alternative Stem Cell Bill Added to Debate
By Rick Weiss
Washington Post Staff Writer
Tuesday, May 24, 2005; Page A03
With a closely divided House poised to vote today on whether to expand federal funding of human embryonic stem cell research, opponents are offering fence-sitters what they say is an embryo-friendly alternative: a bill that would foster the use of stem cells from umbilical cords discarded after birth.
The Stem Cell Therapeutic and Research Act -- introduced by Rep. Christopher H. Smith (R-N.J.), chairman of the House Pro-Life Caucus -- would establish a network of blood banks to help make cord blood cells readily available for patients and research. The bill is set for a House vote this morning in advance of a vote on the hotly contested Stem Cell Research Enhancement Act. That bill would boost federal research spending on cells taken from live human embryos slated for disposal at fertility clinics.
The pairing of the votes raises a scientific question: Are stem cells from umbilical cords reasonable substitutes for embryonic stem cells, which can give rise to all of the body's 200 or so cell types, including nerve, liver, skin, bone, heart muscle and the pancreas, the organ that goes awry in diabetes?...
***
"Published studies have shown that cord blood stem cells have the capacity to change into other cell types, which give them the potential to treat . . . debilitating conditions such as spinal cord injury, Parkinson's, diabetes and heart disease," Smith said in a recent statement.
But several researchers said that statement stretches the truth of what is known about umbilical cord cells. Although scientists do dream of coaxing umbilical cells to produce a wide array of other cells, the only thing they can reliably give rise to today are the components of blood -- red cells, white cells and platelets....
http://www.washingtonpost.com/wp-dyn/content/article/2005/05/23/AR2005052301361.html