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  • Title: Wells' syndrome: a pathogenic role for circulating CD4+CD7- T cells expressing interleukin-5 mRNA.
    Author: Yagi H, Tokura Y, Matsushita K, Hanaoka K, Furukawa F, Takigawa M.
    Journal: Br J Dermatol; 1997 Jun; 136(6):918-23. PubMed ID: 9217826.
    Abstract:
    Wells' syndrome, or eosinophilic cellulitis, is a rare dermatosis characterized histologically by a dermal infiltrate of eosinophils, lymphocytes and histiocytes between collagen bundles and amorphous or granular eosinophilic deposits on collagen, constituting flame figures. We report a 54-year-old woman with eosinophilic cellulitis whose peripheral blood showed a marked eosinophilia and a high proportion of CD4+CD7- cells before treatment. Reverse transcriptase-polymerase chain reaction revealed that CD4+CD7- cells, but neither CD4+CD7+ nor CD4-CD8+ cells, in the circulating mononuclear cells expressed mRNA for interleukin (IL)-5, the major cytokine involved in eosinophilia. The proportion of CD4+CD7- cells decreased, and expression of mRNA for IL-5 disappeared in the peripheral blood, when the disease was treated by the administration of intravenous recombinant interferon-gamma. These findings suggest that circulating CD4+CD7- T cells play a pivotal role in the pathogenesis of eosinophilic cellulitis by producing IL-5.
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