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Interleukin 27: a double-edged sword for offense and defense
Hiroki Yoshida1, Mako Nakaya, Yoshiyuki Miyazaki
1Division of Molecular and Cellular Immunoscience, Department of Biomolecular Sciences, Faculty of Medicine, Saga University, Nabeshima, Saga, Japan. yoshidah@med.saga-u.ac.jp
Journal of Leukocyte Biology
|October 6, 2009
Summary
Interleukin-27 (IL-27) is a unique cytokine that can both promote and suppress immune responses. Its immunosuppressive functions are vital for preventing severe inflammation in autoimmune and infectious diseases.
Area of Science:
- Immunology
- Molecular Biology
- Cell Biology
Background:
- Cytokine-mediated immunity is central to infection and autoimmune disease pathogenesis.
- Interleukin-27 (IL-27) is part of the IL-12 cytokine family, regulating T helper (Th) cell differentiation.
- IL-27 exhibits dual roles, inducing Th1 differentiation while also suppressing immune responses.
Purpose of the Study:
- To review recent studies on the role of IL-27 in immune regulation.
- To explore the dual pro- and anti-inflammatory properties of IL-27.
- To discuss the therapeutic potential of IL-27 in inflammatory diseases.
Main Methods:
- Literature review of recent studies on IL-27.
- Analysis of IL-27's mechanisms in immune suppression (IL-2 suppression, Th17 inhibition, IL-10 induction).
- Evaluation of IL-27's effects in autoimmune and allergic disease models.
Main Results:
- Absence of IL-27 leads to hyperproduction of pro-inflammatory cytokines and severe inflammation.
- IL-27 suppresses immune responses through IL-2 suppression, inhibition of Th17 development, and IL-10 induction.
- Administration of IL-27 has shown efficacy in suppressing autoimmune and allergic diseases.
Conclusions:
- IL-27 possesses critical immunosuppressive functions essential for controlling inflammation.
- The dual role of IL-27 highlights its complex involvement in immune regulation.
- IL-27 demonstrates significant therapeutic potential for treating inflammatory and autoimmune conditions.
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