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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Involvement of CCL18 in Allergic Asthma.

Allergic asthma is associated with a pulmonary recruitment of Th type 2 cells, basophils, and eosinophils, mainly linked to chemokine production. CCL18 is a chemokine preferentially expressed in the lung, secreted by APCs, induced by Th2-type cytokines, and only present in humans. Therefore, CCL18 may be involved in allergic asthma. PBMC from asthmatics allergic to house dust mite cultured in the presence of Dermatophagoides pteronyssinus 1 (Der p 1) allergen secreted CCL18, 48 and 72 h after stimulation, whereas those from healthy donors did not. Part of CCL18 was directly derived from Der p 1-stimulated plasmacytoid dendritic cells, whereas the other part was linked to monocyte activation by IL-4 and IL-13 produced by Der p 1-stimulated T cells. In bronchoalveolar lavages from untreated asthmatic allergic patients, CCL18 was highly increased compared with controls. Functionally, CCL18 preferentially attracted in vitro-polarized Th2 cells and basophils, but not eosinophils and Th1 cells, and induced basophil histamine and intracellular calcium release. These data show a new function for CCL18, i.e., the recruitment of Th2 cells and basophils, and suggest that CCL18 may play a predominant role in allergic asthma.[1]

References

  1. Involvement of CCL18 in Allergic Asthma. Nadaï, P., Charbonnier, A.S., Chenivesse, C., Sénéchal, S., Fournier, C., Gilet, J., Vorng, H., Chang, Y., Gosset, P., Wallaert, B., Tonnel, A.B., Lassalle, P., Tsicopoulos, A. J. Immunol. (2006) [Pubmed]
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