Clinical immunology (Orlando, Fla.) · 2020
Identification of Prevotella Oralis as a possible target antigen in children with Enthesitis related arthritis.
СтатьяПоддержка NIH: внешняя программаResearch Support, N.I.H., IntramuralПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Stoll Matthew L, Duck L Wayne, Chang Margaret H, Colbert Robert A, Nigrovic Peter A, Thompson Susan D, Elson Charles O
Аннотация
OBJECTIVES: Patients with Crohn's disease often produce antibodies against flagellated intestinal bacteria. There are mixed data as to whether such antibodies are present in patients with spondyloarthritis. Our objectives were to evaluate for the presence of antibodies against intestinal organisms in children with enthesitis related arthritis (ERA).
METHODS: Children with ERA and healthy controls were recruited at three sites. Sera were plated on a nitrocellulose array and incubated with labelled antibodies to human IgA and IgG.
RESULTS: At UAB, patients and controls had similar antibody levels against the majority of the bacteria selected, with the exception of increased IgA antibodies among ERA patients against Prevotella oralis (1231 [IQR 750, 2566] versus 706 [IQR 428, 1106], p = .007.) These findings were partially validated at a second but not at a third site.
CONCLUSIONS: ERA patients may produce increased IgA antibodies against P. oralis. The possible significance of this finding bears further exploration.
METHODS: Children with ERA and healthy controls were recruited at three sites. Sera were plated on a nitrocellulose array and incubated with labelled antibodies to human IgA and IgG.
RESULTS: At UAB, patients and controls had similar antibody levels against the majority of the bacteria selected, with the exception of increased IgA antibodies among ERA patients against Prevotella oralis (1231 [IQR 750, 2566] versus 706 [IQR 428, 1106], p = .007.) These findings were partially validated at a second but not at a third site.
CONCLUSIONS: ERA patients may produce increased IgA antibodies against P. oralis. The possible significance of this finding bears further exploration.