SCIENCE IN THE NEWS DAILY
Researchers Produce Blood in Lab from Stem Cells
from the Los Angeles Times (Registration Required)
Scientists said [yesterday] that they have devised a way to grow large quantities of blood in the lab using human embryonic stem cells, potentially making blood drives a relic of the past.
But experts cautioned that although it represented a significant technical advance, the new approach required several key improvements before it could be considered a realistic alternative to donor blood.
The research team outlined a four-step process for turning embryonic stem cells into red blood cells capable of carrying as much oxygen as normal blood. The procedure was published online in the journal Blood. The ability to make blood in the lab would guarantee that hospitals and blood banks have access to an ample supply of all types of blood, including the rare AB-negative and O-negative, the universal donor.
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