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  • Title: [Clinical analysis of HLA-DR-negative non-M3 AML].
    Author: Mori H, Sakai H, Sanada M, Shimamoto K, Sasaki S, Azuma R, Higuchi T, Harada H, Niikura H, Omine M, Fujita K, Takahashi N.
    Journal: Rinsho Ketsueki; 2007 Jul; 48(7):547-53. PubMed ID: 17695303.
    Abstract:
    The type of leukemia was defined as HLA-DR(-) non-M3-AML, when HLA antigens were detected by flow cytometry at an incidence of < 20% of the blast population excluding M3-AML. Out of 109 patients with de novo acute myeloid leukemia, 8 patients had HLA-DR(-) non-AML-M3. According to the French-American-British criteria, 7 patients could be subdivided into 3 patients with M1, 4 patients with M2 and 1 patient with M4. The morphological features of bone marrow aspiration demonstrated no dysplasia and peroxidase stain positivity was noted in over 86% of the blast cells in all patients, the blast cells with fine granularity in 7 patients. The cytogenetic analysis revealed a normal karyotype. There was no expression marker of the blast antigens except CD13, CD14, CD33, CD34 and CD56. All of 7 patients who underwent induction therapy attained complete remission. Overall survival and disease-free survival showed no significant differences between the HLA-DR(-) non- M3-AML group and the HLA-DR(+) AML group.
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