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  • Title: Defining cytolytic T lymphocyte recognition of chemically modified self. I. Response to trinitrophenyl-H-2Kk.
    Author: Handa K, Herrmann S.
    Journal: J Immunol; 1985 Sep; 135(3):1564-72. PubMed ID: 2410495.
    Abstract:
    We used purified class I antigen incorporated into liposomes to examine the response of secondary cytolytic T lymphocytes (CTL) to chemically modified self. By generating the secondary response in the presence of T cell helper factor, the level of CTL response was limited by CTL recognition of added antigen rather than by helper cell generation of lymphokines. We found a strong secondary response against chemically modified self when spleen cells from trinitrophenyl (TNP)-primed C3H/HeJ mice were stimulated with a) TNP-modified liposomes containing H-2Kk, b) liposomes containing H-2Kk purified from TNP-modified RDM-4 (H-2k) cells, or c) liposomes containing the limited trypsin proteolysis product of H-2Kk that had been directly modified with TNP. In contrast, we were not able to generate a significant CTL response with unmodified H-2Kk incorporated into vesicles along with TNP-modified membrane components lacking H-2Kk. These results suggest that TNP-modified H-2Kk is a major antigenic site recognized by CTL from C3H/HeJ mice after priming against TNP-modified self.
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