The mechanistic link between human leukocyte antigen B27 (HLA-B27) and ankylosing spondylitis (AS) is one of the great enigmas in rheumatology. The introduction of biological therapies that target tumor necrosis factor (TNF) or the interleukin (IL) 23/IL-17A axis has had a major impact on the quality of life for many patients with AS, and one…
Understanding how human leukocyte antigen (HLA) class I molecule B27 promotes spondyloarthritis has intrigued researchers for four decades. Although the association between the single gene variant HLA-B27—specifically some of its subtypes—with ankylosing spondylitis (AS) is particularly strong, how HLA-B27 directly influences disease development has not yet been clearly explained, although hypotheses continue to be generated….
This EULAR 2022 session emphasized the importance of recognizing the axial manifestations of psoriatic arthritis and treating these symptoms accordingly.
The axial phenotype of psoriatic arthritis (axPsA) is an excellent example of a major controversy in rheumatology that has become the focus of attention because of the emergence of new therapies with different mechanisms of action for alleviating joint inflammation. It was first described in 1961 but, until recently, it has largely remained under the…