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Antibodies to Crohn's Disease Peptide 353 As a Diagnostic Marker for Pediatric Crohn's Disease: a Prospective Multicenter Study in Japan

Abstract

Background: Various serologic markers such as anti-glycoprotein 2 antibodies and anti-Saccharomyces cerevisiae antibodies have been reported to be diagnostically useful in Crohn's disease. Mitsuyama et al. reported that antibodies to Crohn's disease peptide 353, a newly proposed serologic marker, were more useful in Japanese adults than anti-Saccharomyces. We addressed the same issue in Japanese children and adolescents.

Methods: Prospectively enrolled subjects under 17 years old assessed and treated at 12 pediatric centers in Japan included groups with Crohn's disease, ulcerative colitis, other intestinal diseases, or good health. The 3 serum markers were analyzed by enzyme-linked immunosorbent assays.

Results: Enrolled subjects, numbering 367, included 120 with Crohn's disease, 148 with ulcerative colitis, 56 with other intestinal diseases, and 43 healthy subjects. In Crohn's disease, anti-Crohn's disease peptide 353, anti-glycoprotein 2, and anti-Saccharomyces concentrations (median, 2.25, 3.0, and 8.9 U/mL) were significantly greater than in ulcerative colitis (1.1, 1.9, and 3.4; all P < 0.001), other intestinal diseases (1.1, 1.85, and 2.95; all P < 0.001), and healthy controls (1.1, 1.7, and 2.8; all P < 0.001), respectively. At 95% specificity, sensitivity of anti-Crohn's disease peptide (45.0%) was significantly higher than for anti-glycoprotein 2 (30.8%; P < 0.05) or anti-Saccharomyces (26.7%; P < 0.01).

Conclusions: Anti-Crohn's disease peptide 353 proved more useful for diagnosis of Crohn's disease in Japanese children than the other 2 markers. To our knowledge, this is the first pediatric report to that effect.

Citing Articles

Diagnostic utility, disease activity, and disease phenotype correlation of serum ASCA, pANCA, and PR3-ANCA in pediatric inflammatory bowel disease.

Kim J, Choi Y, Jung S, Yang H J Pediatr (Rio J). 2023; 100(2):204-211.

PMID: 38012956 PMC: 10943302. DOI: 10.1016/j.jped.2023.10.005.

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