News of the WeekGene Therapy

Seeking the Cause of Induced Leukemias in X-SCID Trial

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Science  24 Jan 2003:
Vol. 299, Issue 5606, pp. 495
DOI: 10.1126/science.299.5606.495

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Details of a second case of cancer in a gene-therapy trial in France, revealed last week, raise the odds that both were therapy induced. In both cases, a retrovirus engineered to shuttle corrective genes into cells inserted itself in or near a cancer-causing gene, apparently triggering uncontrolled cell growth.