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  • Title: Alterations of serum Th1 and Th2 chemokines by combination therapy of interferon-gamma and narrowband UVB in patients with mycosis fungoides.
    Author: Shimauchi T, Sugita K, Nishio D, Isoda H, Abe S, Yamada Y, Hino R, Ogata M, Kabashima K, Tokura Y.
    Journal: J Dermatol Sci; 2008 Jun; 50(3):217-25. PubMed ID: 18243665.
    Abstract:
    BACKGROUND: Mycosis fungoides (MF) is a T cell neoplasm with elevation of serum Th2 chemokines. Although interferon-gamma (IFN-gamma) administration and narrowband-UVB (NB-UVB) phototherapy are used for the treatment of MF, a combination therapy of these two modalities is not fully established. OBJECTIVES: To define whether the combination of IFN-gamma and NB-UVB affects the balance of serum levels of Th1 and Th2 chemokines in patients with MF. METHODS: Twelve patients with MF received intravenous or intramuscular injections of recombinant IFN-gamma (rIFN-gamma) or natural IFN-gamma (nIFN-gamma) in combination with NB-UVB phototherapy. As control, three MF patients were treated with NB-UVB monotherapy. At the beginning and cessation of therapy, the concentrations of serum Th2 chemokines, TARC/CCL17 and MDC/CCL22, and Th1 chemokines, IP-10/CXCL10 and MIG/CXCL9 were measured by ELISA. RESULTS: Before treatment, not only Th2 chemokines but also Th1 chemokines were elevated in the patients. Whereas no significant changes were observed in the levels of TARC and MDC, IP-10 and MIG were further elevated by the combination of IFN-gamma and NB-UVB. On the other hand, NB-UVB monotherapy did not change the level of either Th1 or Th2 chemokine. CONCLUSIONS: The combination of IFN-gamma and NB-UVB elevated serum Th1 chemokines but unaffected Th2 chemokines. Since NB-UVB monotherapy could not affect the chemokine levels, the effect of the combination therapy is attributable to IFN-gamma. Given the role of Th1 chemokines for tumor-attacking T cell recruitment at the early stage of MF, the therapy may exert a beneficial effect for early MF.
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