Jason Liebowitz, MD | Issue: March 2020 |
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….
A voyage to (our inner) Lilliput
First Appearances I watched the old man, his back painfully bent, shuffle toward the scale. A blocky rigidity draped over him. His feet seemed stuck to the floor. His head hung heavily over his chest. Observing him from the end of the hallway, instead of a face, I saw only a mound of shaggy, matted…