Pattern recognition receptor and autophagy gene variants are associated with development of antimicrobial antibodies in Crohn's disease.
Pattern recognition receptor and autophagy gene variants are associated with development of antimicrobial antibodies in Crohn's disease.
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DOI:
10.1002/ibd.22884
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发表时间:
2012-09
影响因子:
4.9
通讯作者:
Silverberg, Mark S.
中科院分区:
文献类型:
--
作者:
Murdoch, Travis B.;Xu, Wei;Stempak, Joanne M.;Landers, Carol;Targan, Stephan R.;Rotter, Jerome I.;Silverberg, Mark S.
We sought to investigate whether variants in genes involved in bacterial sensing and autophagy (NOD2, TLR5, IRGM, ATG16L1) and the interleukin-23 signalling pathway (IL12B, IL23R, STAT3) were associated with development of antimicrobial antibodies in patients with Crohn’s disease (CD). A cohort of 616 CD patients from a tertiary referral hospital (Mount Sinai Hospital, Toronto) was evaluated. DNA was tested for three CD-associated NOD2 variants (3020insC, G908R, R702W), variants in IRGM, ATG16L1, IL12B, IL23R, STAT3, and a TLR5-stop mutation. Serum was analyzed by ELISA for anti-Saccharomyces cervesiase (ASCA) IgG and IgA, anti-outer membrane protein C (anti-ompC), anti-Cbir1 flagellin, and anti-Pseudomonas fluorescens (anti-I2). NOD2 3020insC was associated with cumulative seroreactivity by quartile sum (p=0.003) and number of positive antibodies (p=0.02). NOD2 G908R was also associated with quartile sum (p=0.05). Increased ASCA seropositivity was associated with NOD2 3020insC (odds ratio (OR)= 1.9, p=0.02) and G908R (OR=1.8, p=0.05), and ATG16L1 T300A (OR=1.4, p=0.01) variants; ASCA positive patients had an increased cumulative number of NOD2 3020insC and ATG16L1 T300A variants (p=0.007). TLR5-stop mutation abrogated development of anti-flagellin in a dominant-negative fashion (OR=0.5, p=0.009). The IRGM CD risk variant was associated with increased anti-flagellin seropositivity (OR=1.5, p=0.03). IL12B, IL23R, and STAT3 variants did not contribute to development of anti-microbial antibodies. Variants in innate immune genes involved in pattern recognition and autophagy but not the IL-23 signaling pathway influence antimicrobial seroreactivity in CD. In particular, the additive effect of NOD2 3020insC and ATG16L1 T300A suggests a role for autophagy in development of ASCA.
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影响因子:
32.4
作者:
Oppmann, B;Lesley, R;Kastelein, RA
通讯作者:
Kastelein, RA
影响因子:
15.3
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Hawn, TR;Verbon, A;Lettinga, KD;Zhao, LP;Li, SS;Laws, RJ;Skerrett, SJ;Beutler, B;Schroeder, L;Nachman, A;Ozinsky, A;Smith, KD;Aderem, A
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Aderem, A
影响因子:
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影响因子:
30.8
作者:
Hampe, Jochen;Franke, Andre;Schreiber, Stefan
通讯作者:
Schreiber, Stefan
影响因子:
29.4
作者:
Landers, CJ;Cohavy, O;Targan, SR
通讯作者:
Targan, SR