Macrophages – silent enemies in juvenile idiopathic arthritis

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Macrophages – silent enemies in juvenile idiopathic arthritis

Journal Title: Advances in Hygiene and Experimental Medicine - Year 2016, Vol 70, Issue

Abstract

The inflammatory response by secretion of cytokines and other mediators is postulated as one of the most significant factors in the pathophysiology of juvenile idiopathic arthritis (JIA). The effect of macrophage action depends on the type of their activation. Classically activated macrophages (M1) are responsible for release of molecules crucial for joint inflammation. Alternatively activated macrophages (M2) may recognize self antigens by scavenger receptors and induce the immunological reaction leading to autoimmune diseases such as JIA. Molecules essential for JIA pathophysiology include: TNF-α, the production of which precedes synovial inflammation in rheumatoid arthritis; IL-1 as a key mediator of synovial damage; chemotactic factors for macrophages IL-8 and MCP-1; IL6, the level of which correlates with the radiological joint damage; MIF, promoting the secretion of TNF-α and IL-6; CCL20 and HIF, significant for the hypoxic synovial environment in JIA; GM-CSF, stimulating the production of macrophages; and IL-18, crucial for NK cell functions. Recognition of the role of macrophages creates the potential for a new therapeutic approach.

Authors and Affiliations

Joanna Świdrowska-Jaros, Krzysztof Orczyk, Elżbieta Smolewska

Keywords

Przydatność kliniczna oznaczania stężenia wolnych łańcuchów lekkich u pacjentów ze szpiczakiem plazmocytowym: analiza porównawcza dwóch różnych testów

EP ID EP220815
DOI -
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