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    Chapter

    Transforming Growth Factors Produced by Viral-Transformed and Human Tumor Cells

    The isolation of retroviruses with acute transforming function has occurred with increasing frequency over the past few years. Such viruses represent genetic recombinants between host cellular sequences (oncog...

    George J. Todaro, Hans Marquardt, Daniel R. Twardzik in Biological Responses in Cancer (1984)

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    Homology between phosphotyrosine acceptor site of human c-abl and viral oncogene products

    The human homologues of several independent viral oncogenes, each of which encodes tyrosine-specific protein kinases, have been identified1,2. Of these, three (v-src, v-yes and v-fes/fps) are known to exhibit con...

    John Groffen, Nora Heisterkamp, Fred H. Reynolds Jr, John R. Stephenson in Nature (1983)

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    Human transforming growth factors induce tyrosine phosphorylation of EGF receptors

    Cultured cell lines of human tumour origin as well as cells transformed by various RNA tumour viruses secrete low molecular weight polypeptide transforming growth factors (TGFs)1,2. In addition to competing with ...

    Fred H. Reynolds Jr, George J. Todaro, Charlotte Fryling, John R. Stephenson in Nature (1981)

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    Feline sarcoma virus polyprotein P115 binds a host phosphoprotein in transformed cells

    Several independent isolates of feline sarcoma virus (FeSV) have been described1–3. Such viruses are apparently derived by genetic recombination between feline leukaemia virus (FeLV) genomic RNA and host cellular...

    Fred. H. Reynolds Jr, Wim J. M. Van de Ven, John R. Stephenson in Nature (1980)

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    Abelson murine leukaemia virus transformation involves loss of epidermal growth factor-binding sites

    Malignant transformation by mammalian RNA sarcoma viruses has previously been shown to involve a reduction in receptor sites for a well characterized 6,000-molecular weight (MW) growth-promoting substance, des...

    Jonas Blomberg, Fred H. Reynolds Jr, Wim J. M. Van de Ven, John R. Stephenson in Nature (1980)