ISSN:
1432-8798
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Summary A somatic cell hybrid (Cl. 6d) was originated from the fusion of mouse (3T3-4E) and spontaneous yielder SV 40-transformed Chinese hamster (CHK/SVLP AG) cells. During the early stages of its history, the Cl. 6d hybrid underwent a rapid chromosome loss, preferentially loosing hamster chromosomes. This was not a constant tendency of the hybrid cells. As the parental CHK/SVLP AG cells, the hybrid cells were always found 100 per cent SV 40 T-antigen positive. While in CHK/SVLP AG cells infectious SV 40 DNA, V-antigen and virus were regularly detected, in the hybrid cells only infectious DNA was occasionally detected. This was not due either to the loss of an essential Chinese hamster gene(s) or to the presence of an inhibiting mouse cell component(s); it was apparently the consequence of inability of the cells to properly activate the resident SV 40 genome(s). After superinfection with SV 40 DNA, the hybrid cells—though capable of synthesizing SV 40 V-antigen—were unable to ensure virus assembly. Experimental evidence was obtained suggesting that SV 40 maturation is dependent on a cellular function(s).
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01317287
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