First Author | Jones TG | Year | 2010 |
Journal | J Immunol | Volume | 185 |
Issue | 3 | Pages | 1804-11 |
PubMed ID | 20601599 | Mgi Jnum | J:162451 |
Mgi Id | MGI:4819014 | Doi | 10.4049/jimmunol.1001146 |
Citation | Jones TG, et al. (2010) T regulatory cells control antigen-induced recruitment of mast cell progenitors to the lungs of C57BL/6 mice. J Immunol 185(3):1804-11 |
abstractText | In C57BL/6 mice, the recruitment of mast cell progenitors (MCps) to the lung is a feature of Ag-induced pulmonary inflammation that requires sensitization and challenge and is totally inhibited by the administration of anti-CD4 at the time of challenge. When mAb to TGFbeta1 or to IL-10R was administered at the time of challenge, the recruitment of MCp/10(6) mononuclear cells (MNCs) to the lung was inhibited by 56.3 and 69.6%, respectively, whereas mAb to IL-4, IFN-gamma, IL-6, IL-17A, and IL-17F had no effect. In sensitized and challenged C57BL/6 mice lacking TGFbetaRII on CD4(+) cells, the recruitment of MCp/10(6) MNCs was reduced by 67.8%. The requirement for TGFbeta1 and IL-10 suggested a role for CD4(+)CD25(+) T regulatory cells. Mice treated with anti-CD25 at the time of Ag-challenge showed a reduction in the recruitment of MCp/10(6) MNCs by 77.2% without any reduction in MNC influx. These results reveal an unexpected role for T regulatory cells in promoting the recruitment of MCps to the lungs of C57BL/6 mice with Ag-induced pulmonary inflammation. |