CD8+ chronic lymphocytic leukemia: an extensive characterization of a bizarre hybrid neoplasia.
EUROPEAN JOURNAL OF HAEMATOLOGY(2003)
摘要
Atypical chronic lymphocytic leukemia (CLL) expressing the CD8 antigen have a frequency of less than 0.5% of all cases, however, they are not yet been fully characterized. Herein a CD8+ CLL case was extensively studied. Besides the classical CLL antigen expression, an unusual presence of surface markers such as CD11c, CD56, and CD154 was observed. Moreover, gene expression of chemokine receptors belonging to the CCR family were clearly evidenced as well as mRNA for both, Th1 and Th2 cytokines. Likewise, granzyme A, B and perforin gene expression, cytotoxic T cell or NK enzymes were found. The intricate pro. le of membrane molecules and gene expression suggest that it could be favorable, rather than deletereous, for the maintainance of the neoplastic process.
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关键词
chronic lymphocytic leukemia,immunophenotype,cytokines,chemokines,cytotoxic enzymes
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