| First Author | Liu Y | Year | 1995 |
| Journal | Int Immunol | Volume | 7 |
| Issue | 8 | Pages | 1353-62 |
| PubMed ID | 7495742 | Mgi Jnum | J:28210 |
| Mgi Id | MGI:75835 | Doi | 10.1093/intimm/7.8.1353 |
| Citation | Liu Y, et al. (1995) Gene-targeted B-deficient mice reveal a critical role for B cells in the CD4 T cell response. Int Immunol 7(8):1353-62 |
| abstractText | The role of B cells in promoting T cell responses is still controversial. In this study, we use JHD mice which have a targeted mutation in the JH gene and are thus rendered deficient in B cells to address this issue. We show here that immunization of JHD mice with soluble antigen fails to prime CD4 T cells, for either clonal expansion or delivery of immunological help for antibody responses. This lack of CD4 T cell priming in JHD mice corresponds to a 3- to 9-fold lower co-stimulatory activity of antigen-presenting cells (APC) from the JHD mice, as measured by anti-CD3-induced proliferative responses of CD4 T cells. This in turn is due to a defect of APC from JHD mice in response to T cell-mediated induction of co-stimulatory activity. As the development of macrophages and dendritic cells is unaffected in the JHD mice, our results demonstrate that B cells play a critical role in CD4 T cell priming, possibly by delivering a critical co-stimulatory activity for clonal expansion of CD4 T cells. |
