Word: retro
(lookup in dictionary)
(lookup stats)
Dates: during 1990-1990
Sort By: most recent first
(reverse)
Extracting viable T cells from their young patient, Anderson and Blaese exposed them to mouse leukemia retro-viruses into which human ADA genes had been spliced. The retroviruses, rendered harmless by genetic engineering, were the vectors, the vehicles that would deliver the genes to their target. They invaded the T cells and, as retroviruses are wont to do, burrowed into the T- cell DNA, carrying the ADA gene with them. Finally, a billion or so T cells, now equipped with ADA genes and floating in the gray solution suspended above the little girl's bed in Bethesda, were dripped into...