OBJECTIVE: To examine the hypothesis that the subset of rheumatoid arthritis (RA) characterized by antibodies to citrullinated α-enolase is mediated by Porphyromonas gingivalis enolase in the context of DR4 alleles. METHODS: Recombinant human α-enolase and P gingivalis enolase, either citrullinated or uncitrullinated, were used to immunize DR4-IE-transgenic mice and control mice (class II major histocompatibility complex-deficient [class II MHC(-/-)] and C57BL/6 wild-type mice). Arthritis wa...Expand abstract
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Immunization with Porphyromonas gingivalis enolase induces autoimmunity to mammalian α-enolase and arthritis in DR4-IE-transgenic mice.
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