Antibodies against citrullinated proteins of IgA isotype are associated with progression to rheumatoid arthritis in individuals at-risk.

Maria V Sokolova,Fabian Hartmann,Daniela Sieghart,Holger Bang,Guenter Steiner,Arnd Kleyer,Georg Schett,Ulrike Steffen

RMD open（2023）

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摘要

Both IgA1 and IgA2 ACPA are present in RA at-risk individuals, but only IgA1 ACPA are associated with the progression to RA. The observed decline in serum IgA1 ACPA levels before the onset of RA might indicate starting barrier leakiness prior to disease outbreak.

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关键词

anti-citrullinated protein antibodies,arthritis, rheumatoid,autoimmunity

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