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Leuk Res. 2005 Nov;29(11):1353-6.

GATA1 as a new target to detect minimal residual disease in both transient leukemia and megakaryoblastic leukemia of Down syndrome.

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Department of Pediatrics, New York Medical College, Valhalla, NY 10595, USA.


Acquired mutations in exon 2 of the GATA1 gene are detected in most Down syndrome (DS) patients with transient leukemia (TL) and acute megakaryoblastic leukemia (AMKL). We sought to determine if GATA1 mutations can be utilized as markers for minimal residual disease (MRD). GATA1 mutations were screened by SSCP analysis and sequenced. Using GATA1 mutation-specific primers, follow-up bone marrow samples from four patients were assayed by quantitative PCR. We show that molecular monitoring of GATA1 mutations is possible in Down syndrome patients with TL and AMKL, and GATA1 could be a stable marker for MRD monitoring.

[Indexed for MEDLINE]

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