First Author | Tanaka Y | Year | 2004 |
Journal | J Immunol | Volume | 172 |
Issue | 12 | Pages | 7848-58 |
PubMed ID | 15187169 | Mgi Jnum | J:90828 |
Mgi Id | MGI:3044844 | Doi | 10.4049/jimmunol.172.12.7848 |
Citation | Tanaka Y, et al. (2004) Development of antigen-specific CD8+ CTL in MHC class I-deficient mice through CD4 to CD8 conversion. J Immunol 172(12):7848-58 |
abstractText | CD8+ CTL are the predominant tumoricidal effector cells. We find, however, that MHC class I-deficient mice depleted of CD8+ T cells are able to mount an effective antitumor immunity after immunization with fused dendritic/tumor cells. Such immunity appears to be mediated by the generation of phenotypic and functional CD8+ CTL through CD4+ to CD8+ conversion, which we have demonstrated at the single cell level. CD4+ to CD8+ conversion depends on effective in vivo activation and is promoted by CD4+ T cell proliferation. The effectiveness of this process is shown by the generation of antitumor immunity through adoptive transfer of primed CD4 T cells to provide protection against tumor cell challenge and to eliminate established pulmonary metastases. |