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

A possible role of TARC in antigen-specific Th2-dominant responses in patients with Paragonimiasis westermani.

BACKGROUND: Paragonimiasis westermani (Pw), a common parasitic zoonosis in Asia, is typically associated with eosinophilia. Th2 cytokines seem to have an important role in the clinical manifestations of this disease. Thymus and activation-regulated chemokine (TARC) is a potential key regulator of Th2-mediated inflammation. The purpose of the present study was to evaluate the antigen-specific Th2-dominant responses in patients with Pw. METHODS: The concentrations of cytokines and chemokines in supernatants of peripheral blood mononuclear cell (PBMC) cultures with or without antigen stimulation were measured by enzyme-linked immunosorbent assay (ELISA). TARC levels in serum from Pw patients were also evaluated by ELISA. The number of Th2 cells expressing the CC-chemokine receptor 4 (CCR4) in the peripheral blood was evaluated by flow cytometry. RESULTS: Antigen-stimulation induced production of IL-5 and IL-13, but not IFN-gamma from PBMC cultures in patients with Pw. Pw patients had elevated serum TARC levels and a higher proportion of CCR4-expressing cells among CD4+ T cells in the peripheral blood. There were also higher levels of TARC, but not IP-10, in supernatants of antigen-stimulated PBMC culture compared to unstimulated PBMC culture in patients with Pw. CONCLUSION: Our findings clarify antigen-specific Th2-dominant responses in patients with Pw and suggest a possible role for TARC in Th2-dominant responses.[1]

References

  1. A possible role of TARC in antigen-specific Th2-dominant responses in patients with Paragonimiasis westermani. Katoh, S., Matsumoto, N., Matsumoto, K., Tokojima, M., Ashitani, J., Nakamura-Uchiyama, F., Matsushima, K., Matsukura, S., Nawa, Y. Int. Arch. Allergy Immunol. (2004) [Pubmed]
 
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