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Citation Information: JCI Insight. 2025;10(19):e182616. https://doi.org/10.1172/jci.insight.182616.
Abstract
Recurrent acute anterior uveitis is a frequent extra-articular manifestation of the axial spondyloarthropathies (AxSpA): chronic inflammatory diseases affecting the spine, enthesis, peripheral joints, skin, and gastrointestinal tract. Pathology in AxSpA has been associated with local tissue-resident populations of IL-23 responsive lymphoid cells. Here we characterize a population of ocular T cell defined by CD3+CD4–CD8–CD69+γδTCR+IL-23R+ that reside within the anterior uvea as an ocular entheseal analogue of the mouse eye. Localized cytokine expression demonstrates that uveal IL-23R+ IL-17A–producing cells are both necessary and sufficient to drive uveitis in response to IL-23. This T cell population is also present in humans, occupying extravascular tissues of the anterior uveal compartment. Consistent with the concept of IL-23 as a unifying mediator in AxSpA, we present evidence that IL-23 can also act locally on tissue resident T cells in the anterior compartment of the eye at sites analogous to the enthesis to drive ocular inflammation.
Authors
Robert Hedley, Amy Ward, Colin J. Chu, Sarah E. Coupland, Serafim Kiriakidis, Peter C. Taylor, Stephanie G. Dakin, ORBIT Research Consortium, Christopher D. Buckley, Jonathan Sherlock, Andrew D. Dick, David A. Copland
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