CHICKEN HEMATOPOIETIC-CELLS TRANSFORMED BY 7 STRAINS OF DEFECTIVE AVIAN LEUKEMIA VIRUSES DISPLAY 3 DISTINCT PHENOTYPES OF DIFFERENTIATION

被引:711
作者
BEUG, H [1 ]
VONKIRCHBACH, A [1 ]
DODERLEIN, G [1 ]
CONSCIENCE, JF [1 ]
GRAF, T [1 ]
机构
[1] FRIEDRICH MIESCHER INST,CH-4002 BASEL,SWITZERLAND
关键词
D O I
10.1016/0092-8674(79)90057-6
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Chicken hematopoietic cells transformed in vitro and in vivo by seven strains of replication-defective avian leukemia viruses were assayed for the expression of six erythroid and five myeloid differentiation parameters, including differentiation-specific surface antigens as detected by newly developed antisera. The transformed cells were found to display three distinct phenotypes of differentiation. First, cells transformed by AEV resemble erythroblasts. They express heme, globin, carbonic anhydrase and erythrocyte cell surface antigen at low levels, and histone H5 and erythroblast cell surface antigen at high levels. Second, cells transformed by MC29, CMII, OK10 and MH2 viruses have macrophage-like properties. They strongly express Fc receptors, phagocytic capacity and macrophage cell surface antigen, but only weakly express myeloblast cell surface antigen and are negative for ATPase activity. Third, cells transformed by AMV and E26 viruses resemble myeloblasts in that they weakly express Fc receptors, phagocytic capacity and macrophage cell surface antigen but strongly express myeloblast cell surface antigen and ATPase activity. No difference was found between in vitro- and in vivo-transformed cells in the parameters tested. In light of recent genetic and biochemical evidence, we believe that these phenotypes reflect the action of three new types of viral-transforming genes, designated erb (erythroblast), mac (macrophage) and myb (myeloblast). © 1979.
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页码:375 / 390
页数:16
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