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ENA (extractable nuclear antigen) panel tests, test for autoantibodies to proteins in the cell nucleus. The term "extractable" is derived from the ability to remove the autoantibodies from the nuclei with saline and common proteins. The method of identifying these specimens is why they are also referred to as antibodies to saline-extracted ...
Each antibody is present in approximately 25–30% of PBC. The antigens of both antibodies are constituents of the nuclear membrane. gp210 is a 200kDa protein involved in anchoring components of the nuclear pore to the nuclear membrane. The p62 antigen is a 60kDa nuclear pore complex. [42] [43]
Immunofluorescence pattern of SS-A and SS-B antibodies. Produced using serum from a patient on HEp-20-10 cells with a FITC conjugate. Anti-SSA autoantibodies (anti–Sjögren's-syndrome-related antigen A autoantibodies, also called anti-Ro, or similar names including anti-SSA/Ro, anti-Ro/SSA, anti–SS-A/Ro, and anti-Ro/SS-A) are a type of anti-nuclear autoantibodies that are associated with ...
As more antigen is added, the amount of protein precipitated increases until the antigen/antibody molecules are at an optimal ratio. This is known as the zone of equivalence or equivalence point. When the amount of antigen in solution exceeds the amount of antibody, the amount of precipitation will decrease. This is known as the antigen excess ...
Anti-Scl-70 (also called anti-topoisomerase I after the type I topoisomerase target [1]) is an anti-topoisomerase antibody-type of anti-nuclear autoantibodies, seen mainly in diffuse systemic scleroderma (with a sensitivity of 28–70%), but is also seen in 10–18% of cases of the more limited form of systemic scleroderma called CREST syndrome. [2]
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Isabella Strahan was very open throughout her journey battling medulloblastoma, an aggressive brain cancer.Now, along with her family, she’s offering an even closer look at the health challenges ...
Upon release of nuclear proteins and chromatin, antigen presenting cells, such as dendritic cells and macrophages, display these antigens to T helper cells. Although the details of this process are still controversial, evidence shows that to produce an immune response, DNA must activate an antigen presenting cell to produce type 1 interferons.