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  • Title: Hairy cell leukemia in Japanese patients: a study with monoclonal antibodies.
    Author: Katayama I, Hirashima K, Maruyama K, Hoshino S, Abe T, Furusawa S, Iguchi Y.
    Journal: Leukemia; 1987 Apr; 1(4):301-5. PubMed ID: 3118108.
    Abstract:
    Using a panel of monoclonal antibodies and three anti-hairy cell sera (alpha HC1 and alpha HC2 of Posnett and 4B122 prepared by the authors), hairy cells were phenotyped on frozen sections of cell pellets from blood and spleen of 11 Japanese patients with hairy cell leukemia (HCL). The results were quite similar to those reported for HCL of non-Japanese patients inasmuch as hairy cells in the majority of these patients were B1+, B2-, FMC7+, and IL-2R1+. However, they were more often than not J5+, Leu-1+, alpha HC1-, alpha HC2-, and 4B122+ in contrast to the pattern reported for non-Japanese patients. In conclusion, HCL in the Japanese constitutes a special variant of HCL because of its rareness, unusual immunophenotype, and atypical clinicohematologic features.
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