SUSCEPTIBILITY OF AUTOLOGOUS TARGET-CELLS TO LYSIS BY LYMPHOKINE-ACTIVATED EFFECTORS FROM INTERFERON-ALPHA-TREATED CHRONIC MYELOGENOUS LEUKEMIA PATIENTS

被引:11
作者
PAWELEC, G [1 ]
EHNINGER, G [1 ]
SCHMIDT, H [1 ]
MULLER, C [1 ]
BUHRING, HJ [1 ]
REUTTER, M [1 ]
BUSCH, FW [1 ]
机构
[1] UNIV TUBINGEN,MED CLIN,DEPT INTERNAL MED 2,W-7400 TUBINGEN 1,GERMANY
关键词
D O I
10.1007/BF01771452
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Chronic myelogenous leukemia (CML) patients in chronic phase display compromised lymphokine-activated killer (LAK) cell induction, which is partly restored after therapy with interferon α. However, the relative resistance of the leukemic cells from these patients to autologous or allogeneic LAK lysis is not affected by this treatment. In an attempt to render CML cells more susceptible to lysis or cytostasis, they were precultured in serum-free medium with or without recombinant growth factors. In eight patients studied, interleukin-3 (IL-3) significantly enhanced the spontaneous short-term (6-day) proliferation of CML cells, with retention of ability to form colonies in methylcellulose. Culture in either medium alone or IL-3 led to a significant enrichment of CD14+ and CD33+ cells but to a reduction in CD34+ cells. In contrast, culture of the same cells in IL-2 (to generate autologous LAK activity) resulted in a loss of CD14+ and CD33+ as well as CD34+ cells but in a significant increase in CD3+ and CD56+ cells. Despite similarities in their phenotypes, IL-3 cultured cells but not those cultured in medium alone acquired susceptibility to lysis by the IL-2-cultured autologous LAK cells. These results may have significance for the design of novel combination immunotherapy in CML. © 1990 Springer-Verlag.
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页码:167 / 172
页数:6
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