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  • Title: Mechanisms of leukemogenesis. I. Generation of autoreactive lymphocytes in response to a murine leukemia virus.
    Author: Schenk PJ, Howe ML.
    Journal: J Immunol; 1979 May; 122(5):1874-80. PubMed ID: 221580.
    Abstract:
    Examined in this paper is the capacity of 334C murine leukemia virus (MuLV) to stimulate the generation of virus-specific cytotoxic effector cells in mice of the C57BL/6 strain that are relatively resistant to Friend, Moloney, and Rauscher (FMR) MuLV-induced leukemia, and in BALB/c mice that are relatively susceptible to leukemia induced by FMR MuLV. Generation of cytotoxicity requires in vivo administration of the virus followed by in vitro culture of lymphoid cells from virus-injected animals. Lymphoid cells from MuLV-resistant C57BL/6 donors develop high levels of specific cytotoxicity after secondary in vitro stimulation with syngeneic MuLV-induced tumor cells. Cells derived from these same donors, cultured in the absence of MuLV-induced tumor cells, fail to exhibit cytotoxicity. Secondary in vitro stimulation of lymphocytes from MuLV-susceptible BALB/c animals results not only in generation of cytotoxic reactivity against syngeneic MuLV-induced tumor cells but also induces apparently autoreactive effector cells capable of lysing other H-2d tumor cells as well as normal peritoneal cells bearing H-2d antigens. Moreover, generation of cytotoxicity by BALB/c lymphocytes occurs whether or not MuLV-induced tumor cells are included in the secondary culture system.
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