Nucleotide oligomerization domain-2 (NOD2)-induced uveitis: dependence on IFN-gamma.
Nucleotide oligomerization domain-2 (NOD2)-induced uveitis: dependence on IFN-gamma.
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DOI:
10.1167/iovs.08-2756
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发表时间:
2009-04
影响因子:
4.4
通讯作者:
Rosenbaum JT
中科院分区:
文献类型:
--
作者:
Rosenzweig HL;Kawaguchi T;Martin TM;Planck SR;Davey MP;Rosenbaum JT
Nucleotide oligomerization domain-2 (NOD2) plays an important role in innate immunity to sense muramyl dipeptide (MDP), a component of bacterial cell walls. Notably, NOD2 is linked to eye inflammation because mutations in NOD2 cause a granulomatous type of uveitis called Blau syndrome. A mouse model of NOD2-dependent ocular inflammation was employed to test the role of a cytokine strongly implicated in granuloma formation, IFN-γ, in order to gain insight into downstream functional consequences of NOD2 activation within the eye triggering uveitis. Mice deficient in IFN-γ, NOD2, or CD11b and their wild-type controls were treated with intravitreal injection of MDP in the presence or absence of IFN-γ. IFN-γ production in the eye was measured by ELISA. The intravascular inflammatory response within the iris was quantified by intravital microscopy. NOD2 activation resulted in the production of IFN-γ within the eye. Deficiency in IFN-γ diminished the development of MDP-induced uveitis, indicating its crucial role in downstream inflammatory events triggered by NOD2. Moreover, exogenous IFN-γ markedly exacerbated MDP-induced ocular inflammation in a NOD2-dependent mechanism. The potential of IFN-γ to enhance inflammation required the adhesion molecule CD11b because CD11b-deficient mice failed to show the synergistic effects of IFN-γ and MDP cotreatment on adhering and infiltrating cells. IFN-γ was identified as a downstream mediator of NOD2-driven inflammation and the capacity of IFN-γ in vivo to enhance the inflammatory potential of NOD2 was demonstrated. Extrapolation of these findings in mice suggests that the dysregulation of IFN-γ may occur in patients with Blau syndrome, thereby contributing to the granulomatous nature of the disease.
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影响因子:
4.4
作者:
Finnegan, A;Grusby, MJ;Zhang, J
通讯作者:
Zhang, J
影响因子:
4.4
作者:
Doodes, Paul D.;Cao, Yanxia;Hamel, Keith M.;Wang, Yumei;Farkas, Balint;Iwakura, Yoichiro;Finnegan, Alison
通讯作者:
Finnegan, Alison
DOI:
10.1084/jem.188.2.305
发表时间:
1998-07-20
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Kengatharan KM;De Kimpe S;Robson C;Foster SJ;Thiemermann C
通讯作者:
Thiemermann C
DOI:
10.1073/pnas.261567999
发表时间:
2002-01-08
影响因子:
11.1
作者:
Hampe, J;Frenzel, H;Schreiber, S
通讯作者:
Schreiber, S
影响因子:
5.9
作者:
JABS, DA;HOUK, JL;ARNETT, FC
通讯作者:
ARNETT, FC