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  • Title: Endogenous retroviral gp70 genes of the murine lymphoma L5178Y: analysis of restriction fragment polymorphism upon induction of drug-mediated immunogenicity.
    Author: Grohmann U, Belladonna ML, Allegrucci M, Silla S, Schiaffella E, Fioretti MC, Puccetti P.
    Journal: Viral Immunol; 1994; 7(4):155-67. PubMed ID: 7576030.
    Abstract:
    Highly immunogenic ("xenogenized") tumor variants appear after treatment of murine lymphoma L5178Y with the triazene derivative DTIC, this phenomenon being associated with the appearance of structurally abnormal gp70 env proteins in the cell variants. In the present study, we have isolated and sequenced several PCR-amplified gp70 cDNA genes from L5178Y cells. One of the resulting clones was used as a probe in Southern and Northern analysis of parental and xenogenized cells. The results indicated that xenogenization of tumor cells is associated with changes in retroviral env sequences detectable at the genomic level.
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