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??TCR regulates production of interleukin-27 by neutrophils and attenuates inflammatory arthritis.


ABSTRACT: ?? T cells have been implicated in inflammatory diseases as an important link between the innate and adaptive immune responses, however, their role in inflammatory arthritis remain unclear. To define the contribution of ?? T cells in the pathogenesis of inflammatory arthritis, we performed gene transfer of IL-23 in B10.RIII mice to establish joint inflammation in the presence or absence of ?? T cells. We demonstrated that ?? T cell blockade has a protective effect on arthritis incidence and severity by preventing neutrophil accumulation in the blood, spleen and bone marrow as well as by reducing neutrophil infiltration into the joints. Furthermore, our data demonstrate that absence of ?? T cells was associated with an increase of IL-27 levels produced by neutrophils and dendritic cells, and systemic IL-27 expression also prevents IL-23-induced inflammatory arthritis and limits neutrophil expansion. Collectively our findings reveal an immunomodulatory effect of ?? T cells on neutrophils associated with IL-27 synthesis and secretion and indicate a novel link between IL-27 and the modulation of ?? T cells and neutrophils that can be targeted in the treatment of inflammatory arthritis.

SUBMITTER: Bouchareychas L 

PROVIDER: S-EPMC5954154 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature

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γδTCR regulates production of interleukin-27 by neutrophils and attenuates inflammatory arthritis.

Bouchareychas Laura L   Grössinger Eva M EM   Kang Mincheol M   Adamopoulos Iannis E IE  

Scientific reports 20180515 1


γδ T cells have been implicated in inflammatory diseases as an important link between the innate and adaptive immune responses, however, their role in inflammatory arthritis remain unclear. To define the contribution of γδ T cells in the pathogenesis of inflammatory arthritis, we performed gene transfer of IL-23 in B10.RIII mice to establish joint inflammation in the presence or absence of γδ T cells. We demonstrated that γδ T cell blockade has a protective effect on arthritis incidence and seve  ...[more]

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