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  • Title: Local adoptive transfer of skin delayed-type hypersensitivity initiated by a single T lymphocyte.
    Author: Marchal G, Seman M, Milon G, Truffa-Bachi P, Zilberfarb V.
    Journal: J Immunol; 1982 Sep; 129(3):954-8. PubMed ID: 6980927.
    Abstract:
    In vivo primed T cells injected in the footpad of naive recipients elicit a typical delayed-type hypersensitivity (DTH) reaction in the presence of their specific antigen. The values of the footpad swelling obtained after these transfers show a clear distinction between negative and positive responses. Serial dilutions of primed T cell populations allow the establishment of titration curves by limiting dilution analysis according to Poisson distribution. The single hit titration curve indicates that a unique cell type underlies the DTH reaction. Furthermore, by using cloned T cells it can be demonstrated that the transfer of a single cell is able to initiate a DTH reaction. The revelation of T cell activity at unit level needs an optimal dose of antigen mixed with the sampled cells.
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