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Leuk Res. 2003 Sep;27(9):865-7.

2-deoxycoformycin in the treatment of T-large granular lymphocyte leukemia.

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Third Department of Internal Medicine, First Hospital of Athens, Social Insurance Foundation, Zaimi Street-Melissia, 15127 Athens, Greece.


A 52-year-old woman presented to our clinic for investigation of agranulocytosis and mild lymphocytosis. A diagnosis of T-large granular lymphocyte leukemia was made, based on immunophenotyping findings of the peripheral blood lymphocytes (CD3, CD8, CD16, CD57). Flow cytometric analysis of TCR-Vbeta repertoire showed single Vbeta9 expression on peripheral T-cells. Clonality was also demonstrated with PCR analysis which revealed clonal rearrangement of TCRgamma-chain gene. Granulocyte-macrophage colony-stimulating factor (G-CSF) (G-CSF), cyclosporine, methylprednisolone and oral methotrexate failed to correct the neutropenia. Finally, treatment with 2-deoxycoformycin (DCF) was successful and resulted in complete correction of the neutrophil count. Flow cytometric analysis of TCR-Vbeta repertoire proved to be an effective method to assess the therapeutic response to various treatments and to evaluate residual disease.

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