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A Role for Leukocyte-derived IL-1RA in DC Homeostasis Revealed by Increased Susceptibility of IL-1RA-deficient Mice to Cutaneous Leishmaniasis

Overview
Publisher Elsevier
Specialty Dermatology
Date 2011 Apr 29
PMID 21525884
Citations 10
Authors
Affiliations
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Abstract

Dendritic cell (DC)-derived IL-1α/β plays a critical role in the induction of T helper type 1 (Th1)-dependent immunity against Leishmania. DCs from susceptible BALB/c mice produce less IL-1α/β when compared with resistant C57BL/6 mice, contributing to aberrant Th2 development and ultimate death of infected mice. We have extended our studies of the role of IL-1 in leishmaniasis using IL-1RA(-/-) BALB/c mice that are characterized by upregulated IL-1 receptor signaling. Unexpectedly, infection of IL-1RA(-/-) mice led to significantly worsened disease outcome with larger lesions, dramatically higher parasite burdens, and decreased IFN-γ production by antigen-specific T cells. We determined that IL-1RA(-/-) DCs were more mature already in the steady state, exhibited less phagocytotic capacity, and IL-12 production in response to various stimuli was impaired. Our data suggest that in addition to effects on Th education, IL-1α/β signaling also modulates DC homeostasis with increased signaling, leading to downmodulation of IL-12 synthesis and worsened disease outcome after infection with Leishmania major. Thus, the complex regulation of various members of the IL-1 cytokine family mediated through effects on both DCs and T cells critically contributes to disease outcome against this important human pathogen.

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References
1.
von Stebut E, Udey M . Requirements for Th1-dependent immunity against infection with Leishmania major. Microbes Infect. 2004; 6(12):1102-9. DOI: 10.1016/j.micinf.2004.05.024. View

2.
Lichtman A, Chin J, Schmidt J, Abbas A . Role of interleukin 1 in the activation of T lymphocytes. Proc Natl Acad Sci U S A. 1988; 85(24):9699-703. PMC: 282842. DOI: 10.1073/pnas.85.24.9699. View

3.
Fitzgerald A, LeClercq S, Yan A, Homik J, Dinarello C . Rapid responses to anakinra in patients with refractory adult-onset Still's disease. Arthritis Rheum. 2005; 52(6):1794-803. DOI: 10.1002/art.21061. View

4.
Jacobs T, Andra J, Gaworski I, Graefe S, Mellenthin K, Kromer M . Complement C3 is required for the progression of cutaneous lesions and neutrophil attraction in Leishmania major infection. Med Microbiol Immunol. 2004; 194(3):143-9. DOI: 10.1007/s00430-004-0229-y. View

5.
Shortman K, Liu Y . Mouse and human dendritic cell subtypes. Nat Rev Immunol. 2002; 2(3):151-61. DOI: 10.1038/nri746. View