First Author | Brooks DG | Year | 2010 |
Journal | Proc Natl Acad Sci U S A | Volume | 107 |
Issue | 7 | Pages | 3018-23 |
PubMed ID | 20133700 | Mgi Jnum | J:157557 |
Mgi Id | MGI:4431123 | Doi | 10.1073/pnas.0914500107 |
Citation | Brooks DG, et al. (2010) IL-10 directly suppresses CD4 but not CD8 T cell effector and memory responses following acute viral infection. Proc Natl Acad Sci U S A 107(7):3018-23 |
abstractText | Mounting effective T cell responses is critical for eliciting long-lasting immunity following viral infection and vaccination. A multitude of inhibitory and stimulatory factors are induced following infection, and it is the compilation of these signals that quantitatively and qualitatively program the ensuing effector and memory T cell response. In response to lymphocytic choriomeningitis virus (LCMV) infection, the immunosuppressive cytokine IL-10 is rapidly up-regulated; however, how IL-10 is regulating what is often considered an 'optimal' immune response is unclear. We demonstrate that IL-10 directly inhibits effector and memory CD4 T cell responses following an acutely resolved viral infection. Blockade of IL-10 enhanced the magnitude and the functional capacity of effector CD4 T cells that translated into increased and more effective memory responses. On the other hand, lack of IL-10 signaling did not impact memory CD8 T cell development. We propose that blockade of IL-10 may be an effective adjuvant to specifically enhance CD4 T cell immunity and protection following vaccination. |