| First Author | Kin NW | Year | 2006 |
| Journal | J Immunol | Volume | 176 |
| Issue | 11 | Pages | 6727-35 |
| PubMed ID | 16709832 | Mgi Jnum | J:131798 |
| Mgi Id | MGI:3774482 | Doi | 10.4049/jimmunol.176.11.6727 |
| Citation | Kin NW, et al. (2006) CD86 stimulation on a B cell activates the phosphatidylinositol 3-kinase/Akt and phospholipase C gamma 2/protein kinase C alpha beta signaling pathways. J Immunol 176(11):6727-35 |
| abstractText | Stimulation of CD86 on a CD40L/IL-4-activated murine B cell increases the rate of mature IgG1 transcription by increasing the level of NF-kappaB activation, as well as Oct-2 expression and binding to the 3'-IgH enhancer. The signal transduction pathway activated by CD86 proximal to NF-kappaB activation is unknown. In this study, we show that CD86 stimulation on an activated B cell increases the activity of PI3K and the phosphorylation of phosphoinositide-dependent kinase 1, Akt, and IkappaB kinase alphabeta. In addition, CD86 stimulation induces an increase in the phosphorylation of phospholipase Cgamma2 and protein kinase C alphabeta. CD86-mediated activation of these two signaling pathways leads to increased Oct-2 expression, increased gene activity mediated by NF-kappaB and 3'-IgH enhancer increased activity. These results identify a previously unknown signaling pathway induced by CD86 to regulate the level of B cell gene expression and activity. |
