Novel Anti-Glycan Antibodies Related to Inflammatory Bowel Disease Diagnosis and Phenotype

Autor: Anne M. Griffiths, Mark S. Silverberg, A. Hillary Steinhart, Cynthia H. Seow, Nir Dotan, Gordon R. Greenberg, Joanne M. Stempak, Hui Lan, Wei Xu
Rok vydání: 2009
Předmět:
Zdroj: The American Journal of Gastroenterology. 104:1426-1434
ISSN: 1572-0241
0002-9270
DOI: 10.1038/ajg.2009.79
Popis: OBJECTIVES We sought to evaluate whether two novel immunoglobulin A (IgA) cell wall polysaccharide antibodies, anti-laminarin (anti-L) and anti-chitin (anti-C), aid in the diagnosis and phenotype differentiation of Crohn's disease (CD) and ulcerative colitis (UC). METHODS A cohort of 818 individuals with inflammatory bowel disease (IBD; 517 CD and 301 UC) from two IBD tertiary referral centers, with median ages of 33 and 39 years, respectively, and disease duration of 8.9 years, were phenotyped using the Montreal classification, and analyzed for seven anti-glycan antibodies (gASCA (anti-Saccharomyces cerevisiae) IgG, gASCA IgA, anti-chitobioside (GlcNAc(beta1,4)GlcNAc(beta)), anti-laminaribioside (Glc(beta1,3)Glb(beta)), anti-mannobioside (Man(alpha1,3)Man(alpha)), anti-L, and anti-C) and perinuclear atypical neutrophil cytoplasmic antibodies (pANCA). RESULTS In the CD patient population, 73% were positive for >/=1 anti-glycan antibody. All glycan markers were specific for CD (85.4-97.7%) and more prevalent in CD vs. UC (P
Databáze: OpenAIRE