Contact sensitivity in rabbits sensitized with dinitrophenylated Mycobacterium tuberculosis

  • Gibbins B
  • Hinrichs D
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Abstract

The conjugation of Mycobacterium tuberculosis with DNFB results in the formation of a haptenated preparation that induces the formation of contact sensitivity when administered subcutaneously. This contact sensitivity can be measured in vivo by topical application of the free chemical and in vitro by lymphocyte transformation. The antigens suitable for the in vitro detection are those preparations obtained by the haptenation of cell membranes. Haptenation of serum proteins, of homologous and heterologous origin, does not produce antigens suitable for in vitro assay. The antigen requirements for the in vitro transformation assay of contact sensitivity are similar for adjuvant induced sensitivity as well as for free chemical induced sensitivity. © 1976.

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Authors

  • Bruce L. Gibbins

  • David J. Hinrichs

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