Figure 1
From: Upregulated hypoxia inducible factor-1α and -2α pathway in rheumatoid arthritis and osteoarthritis
(a) Mixed nuclear and cytoplasmic expression of synovial lining and stromal cells in a case of RA. Note a similar reactivity in the lymphoid and plasma cell component. (b) Mixed nuclear and cytoplasmic expression of synovial lining cells, stromal cells, and endothelial cells in a case of osteoarthritis (OA). (c) Mixed nuclear and cytoplasmic expression of endothelial cells in a case of RA.