Therapeutic effect of IL-12/23 and their signaling pathway blockade on brain ischemia model.

Abstract:

:Recently, T cell cytokines such as IL-17 and IFN-γ have been shown to play important roles in the progression of brain injury induced by ischemia. We have shown that IL-23 from infiltrated macrophages activates γδT cells, thereby inducing IL-17 from these cells. However, deletion of the IL-23 gene in mice showed a more dramatic protective effect against brain ischemia reperfusion (I/R) model than γδT cell depletion did, suggesting that IL-23 plays some other pivotal role in brain injury in addition to its role in IL-17 induction. To develop therapeutic methods based on these findings, we examined the effect of the JAK kinase inhibitor CP-690550 and an anti-IL12/23 monoclonal antibody on an I/R model. CP-690550 efficiently inhibited IL-17 production from memory T cells in vitro and partly suppressed infarct volume increase after I/R. Anti-p40 antibody, which blocks both IL-12 and IL-23, efficiently suppressed I/R injury and improved recovery of neurological deficits. The number of IL-17-producing cells was decreased by anti-p40 antibody treatment. Thus the JAK inhibitor and anti-p40 antibody, both of which have already been under trial for the treatment of several human inflammatory diseases, appear to be promising therapeutic agents for the amelioration of stroke.

authors

Konoeda F,Shichita T,Yoshida H,Sugiyama Y,Muto G,Hasegawa E,Morita R,Suzuki N,Yoshimura A

doi

10.1016/j.bbrc.2010.10.058

subject

Has Abstract

pub_date

2010-11-19 00:00:00

pages

500-6

issue

3

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(10)01936-4

journal_volume

402

pub_type

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