Cytoplasmic expression of nucleophosmin accurately predicts mutation in the nucleophosmin gene in patients with acute myeloid leukemia and normal karyotype.

Abstract excerpt

Mutations in the nucleophosmin (NPM1) exon 12 resulting in delocalization of NPM1 into the cytoplasm occur in 50% to 60% of acute myeloid leukemia cases with a normal karyotype (AML-NK). As recent studies suggest such patients have a favorable prognosis and there are discordant reports of the immunohistochemical detection of cytoplasmic NPM1 (NPMc+) for predicting NPM1 gene mutations, we correlated the...

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