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Abstract
In reactive arthritis (ReA), including Reiter's syndrome, a close relationship between chronic enteric and genitourinary infections and the clinical features of enthesitis has been described. In contrast, in Lyme arthritis, a distinct clinical entity, chronic infection with the tick-transmitted spirochete Borrelia burgdorferi has been associated with the disease. In a prospective study, 51 patients with ReA were tested for evidence of chlamydial and spirochetal infection. The presence of Chlamydia was determined by culture in 8 patients, and 7 additional patients had markedly elevated antibody titers. In 9 patients, antibodies specific to B burgdorferi were found. Purified peripheral blood T lymphocytes of all 9 patients proliferated specifically to stimulation with macrophages pre-pulsed with B burgdorferi antigens. Compared with other protein antigens, higher numbers of antigen-pulsed macrophages were necessary to activate B burgdorferi-specific T cells. Although antibody titers decreased in response to antibiotic treatment in 8 of 9 patients, second-line therapy with sulfasalazine or methotrexate was required to obtain clinical remission. These data suggest that chronic infection with B burgdorferi can cause ReA. In predisposed individuals, the arthritogenic immune response might be triggered by persisting infectious agents independent of their antigenic specificities.
View details for Web of Science ID A1989AQ32400001
View details for PubMedID 2476133