| First Author | Xu B | Year | 2007 |
| Journal | Int Immunol | Volume | 19 |
| Issue | 6 | Pages | 775-84 |
| PubMed ID | 17513879 | Mgi Jnum | J:122292 |
| Mgi Id | MGI:3713964 | Doi | 10.1093/intimm/dxm046 |
| Citation | Xu B, et al. (2007) Lack of lymphoid chemokines CCL19 and CCL21 enhances allergic airway inflammation in mice. Int Immunol 19(6):775-84 |
| abstractText | Lymphoid chemokines CCL19 and CCL21 are crucial for the recruitment of circulating naive T cells into lymph nodes. However, it is not completely known how they contribute to the development of allergic diseases. To determine whether the lack of CCL19 and CCL21 affects allergic airway inflammation, CCL19- and CCL21-deficient [paucity of lymph node T cells (plt/plt)] and wild-type (WT) mice were immunized intra-peritoneally and then challenged intra-nasally with chicken ovalbumin (OVA). Plt/plt mice developed more severe allergic airway inflammation characterized by increased eosinophils and lymphocytes in bronchoalveolar lavage (BAL) and profound inflammation in peribronchiolar and perivascular regions than did WT mice. CD4(+) alpha(4) integrin(+) and CD4(+) beta(7) integrin(+) T cells were significantly increased in the BAL of OVA-immunized and OVA-challenged (OVA/OVA) plt/plt mice compared with OVA/OVA WT mice. Moreover, there were higher levels of IL-4 and IL-13 mRNAs and lower levels of IL-2 and IFN-gamma mRNAs in inflamed lungs of OVA/OVA plt/plt mice compared with OVA/OVA WT mice. Plt/plt mice produced higher levels of total and OVA-specific IgE antibody. Thus, our results suggest that lack of lymphoid chemokines CCL19 and CCL21 enhances allergic airway inflammation by modulating the recruitment of CD4(+) T cells into the lung, the balance between T(h)1 and T(h)2 cytokines and the IgE production. |
