Immunity to D-penicillamine: genetic, cellular, and chemical requirements for induction of popliteal lymph node enlargement in the mouse.

Abstract

To elucidate the pathogenesis of immunological diseases induced by the drug D-Penicillamine (D-Pen) the requirements for sensitization to this drug were investigated. Mice were subcutaneously (s.c.) injected into one hind footpad with a solution of D-Pen without adjuvant, and reactivity to D-Pen was determined in the popliteal lymph node assay (PLNA) by weight increase of the draining PLN, the incorporation of 3H-thymidine, and trapping of 51Cr-labeled syngeneic lymphocytes in the draining PLN. The peak of the primary PLN response was obtained between day 7 and 10 after injecting 1 mg of D-Pen per mouse. Likewise, PLN enlargement could be induced by injecting 18 hr nonadherent spleen cells s.c. that had been pretreated overnight with D-Pen in vitro. D-Pen-induced PLN enlargement was primarily caused by cell proliferation within the lymph node, and only a minor portion was due to trapping of circulating lymphocytes. The majority of the cells in the enlarged PLN were B cells; T cells, however, were required for generation of PLN enlargement. For induction of PLN reactivity to D-Pen, the stereoisomer L-Pen, and the dimer D-Pen disulfide, it was mandatory that the respective molecules were administered in ionized form. PLN reactivity to D-Pen is controlled by at least two loci, one mapping to the I region, possibly A beta A alpha, the other(s) to the non-H-2 background. As far as studied, high responsiveness was inherited dominantly. The PLN reaction proved to be antigen-specific, since D-Pen-primed mice exhibited an enhanced reaction when challenged with a suboptimal dose of D-Pen, but not when challenged with an unrelated drug, diphenylhydantoin (DPH). The possible relationship between immunity to D-Pen and autoimmunity induced by this drug is discussed.

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@article{Hurtenbach1987ImmunityTD, title={Immunity to D-penicillamine: genetic, cellular, and chemical requirements for induction of popliteal lymph node enlargement in the mouse.}, author={Ursula Hurtenbach and Helga Gleichmann and Naokazu Nagata and Ernst Gleichmann}, journal={Journal of immunology}, year={1987}, volume={139 2}, pages={411-6} }