The Niche

The day that President Bush vetoed legislation to expand federal funding for embryonic stem cell research, he also issued an executive order calling for a plan to promote alternate sources of pluripotent stem cells, the details of which were announced today. Like the original executive order, it calls for the NIH Human Embryonic Stem Cell Registry to be renamed the NIH Pluripotent Stem Cell Registry.

The implication is that existing pluripotent stem cell lines are equivalent to embryonic stem cell lines. That’s not true. Many scientists think it could be true someday if current techniques advance, but many believe advancing pluripotent stem cells cannot be done without continuing to study embryonic stem cells.

The plan released today includes a soon-to-be-formalized program announcement to fund grants for research on alternative sources of human pluripotent stem cells including dead embryos, altered nuclear transfer (putting genetic material into an oocyte that will cause it to divide without forming a viable embryo), single cell embryo biopsy, and reprogramming somatic cells. These areas could all prove extremely valuable in understanding disease and testing therapies. Nonetheless, opponents of embryonic stem cell research must acknowledge that if this work is performed instead of rather than alongside work on embryonic stem cells, science will suffer and its fruits could be delayed.

Continue reading "Renaming the Embyronic Stem Cell Registry recasts debate" »

Posted by Monya Baker on September 18, 2007
Categories: Community, Ethics, Policy | Permalink | Comments (1) | TrackBacks (0)

Just a day after the publication of my article wondering whether the California Institute of Regenerative Medicine (CIRM) could capture a big fish as its leader, CIRM announced that it had hooked a big fish.

News reports (links below) hailed the appointment as a coup. Alan Trounson founded the Australian Stem Cell Centre and helped produce the world’s third test-tube baby. He’s also started companies, including the Singapore-based ES Cell International.

One strength that has not been highlighted is Trounson’s potential to link US scientists with those in the Asia-Pacific region. He has been very active in efforts to found an Asian-Pacific Stem Cell Network, and quite vocal about the advantages that that region has for stem cell research. When meeting with leading stem-cell scientists from around the region in June, Trounson was emphatic in discussing the need for political champions.
See our article here.

Continue reading "Australian head of California’s stem-cell institute could help globalize stem-cell research" »

Posted by Monya Baker on September 17, 2007
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Today, the Human Fertilisation and Embryology Authority (HFEA) in the UK said that scientists could combine human chromosomes with animal eggs and try to make embryonic stem cells. It’s easier to collect unfertilized eggs from, say, cows than it is to collect them from women.

Interested scientists will learn in November if they’ll be licensed to make the attempts, which must be carried out under certain guidelines, but an article this month in Nature Cell Biology reminds us that even if the government says `yes’, some laws of science might say ‘no’.

In chimera-embryos (properly called `cybrid-embryos’ in this context), the chromosomes will be human, but at least some of the mitochondria will not.

Continue reading "Britain gives go-ahead on chimeras. Will science now block the way?" »

Posted by Monya Baker on September 06, 2007
Categories: Cloning, Policy, Reprogramming/Pluripotency | Permalink | Comments (1) | TrackBacks (0)