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  • Title: Mycoplasma neurolyticum: a potent mitogen for rat B lymphocytes.
    Author: Naot Y, Merchav S, Ginsburg H.
    Journal: Eur J Immunol; 1979 Mar; 9(3):185-9. PubMed ID: 312732.
    Abstract:
    A mitogen prepared from Mycoplasma neurolyticum has been demonstrated to induce extensive transformation of in vitro cultured rat B lymphocytes. The data summarized in this report show that rat thymus cells as well as hydrocortisone-resistant thymocytes were not activated by this mitogenic agent. On the other hand, spleen cells obtained from thymectomized, lethally irradiated and bone marrow-reconstituted rats were extensively activated by M. neurolyticum. Furthermore, M. neurolyticum was shown to induce the development of antibody-producing cells, as attested by the appearance of direct plaque-forming cells against sheep red blood cells and trinitrophenylated sheep red blood cells in spleen cell cultures exposed to this mitogen. It was also demonstrated that stimulation of rat lymphocytes by this mitogen was inhibited by anti-rat immunoglobulin antibodies. In view of these data, it was suggested that M. neurolyticum, which activates mouse B lymphocytes, is a potent mitogen for rat B lymphocytes as well. This mitogen is a significantly more powerful mitogen for rat B lymphocytes then any other known mitogens. The availability of such mitogenic material in the rat system will enable studies on control mechanisms of action and differentiation of rat B lymphocytes.
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