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  • Title: Medium conditioned by spleen cells of Nematospiroides dubius-infected mice does not support development of cultured mast cells.
    Author: Reed ND, Dehlawi MS, Wakelin D.
    Journal: Int Arch Allergy Appl Immunol; 1988; 85(1):113-5. PubMed ID: 3338850.
    Abstract:
    The ability of different conditioned media to support mast cell development from precursors in normal bone marrow was evaluated. Many mast cells developed in bone marrow cultures containing medium conditioned by concanavalin-A-stimulated spleen cells of normal mice, Trichinella spiralis-infected mice, or mice infected for 6 days by Nematospiroides dubius. By contrast, medium conditioned by concanavalin-A-stimulated spleen cells of mice having 18-day infections of the nematode N. dubius failed to support mast cell development. The difference between medium conditioned by spleen cells of mice having 6-day versus 18-day infections of N. dubius may be due to the life cycle stage of the parasite, larval or adult, present at those times. These results from cultures are consistent with those from in vivo studies in which mice given primary infections of N. dubius failed to develop the intestinal mastocytosis characteristic of nematode infections.
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