TY - JOUR
T1 - Campylobacter jejuni genotypes are associated with post-infection irritable bowel syndrome in humans
AU - Peters, Stephanie
AU - Pascoe, Ben
AU - Wu, Zuowei
AU - Bayliss, Sion C.
AU - Zeng, Ximin
AU - Edwinson, Adam
AU - Veerabadhran-Gurunathan, Sakteesh
AU - Jawahir, Selina
AU - Calland, Jessica K.
AU - Mourkas, Evangelos
AU - Patel, Robin
AU - Wiens, Terra
AU - Decuir, Marijke
AU - Boxrud, David
AU - Smith, Kirk
AU - Parker, Craig T.
AU - Farrugia, Gianrico
AU - Zhang, Qijing
AU - Sheppard, Samuel K.
AU - Grover, Madhusudan
N1 - Funding Information:
The study was funded by NIDDK K23 DK103911, R03 120745, and Department of Medicine K2R Program Award to M.G. Authors B.P., S.C.B. and S.K.S. are supported by the Medical Research Council (MRC) grant MR/L015080/1. C.T.P is supported by USDA CRIS Project 2030-42000-055-00D. Authors acknowledge Ms. Lori Anderson for administrative support.
Publisher Copyright:
© 2021, The Author(s).
PY - 2021/8/30
Y1 - 2021/8/30
N2 - Campylobacter enterocolitis may lead to post-infection irritable bowel syndrome (PI-IBS) and while some C. jejuni strains are more likely than others to cause human disease, genomic and virulence characteristics promoting PI-IBS development remain uncharacterized. We combined pangenome-wide association studies and phenotypic assays to compare C. jejuni isolates from patients who developed PI-IBS with those who did not. We show that variation in bacterial stress response (Cj0145_phoX), adhesion protein (Cj0628_CapA), and core biosynthetic pathway genes (biotin: Cj0308_bioD; purine: Cj0514_purQ; isoprenoid: Cj0894c_ispH) were associated with PI-IBS development. In vitro assays demonstrated greater adhesion, invasion, IL-8 and TNFα secretion on colonocytes with PI-IBS compared to PI-no-IBS strains. A risk-score for PI-IBS development was generated using 22 genomic markers, four of which were from Cj1631c, a putative heme oxidase gene linked to virulence. Our finding that specific Campylobacter genotypes confer greater in vitro virulence and increased risk of PI-IBS has potential to improve understanding of the complex host-pathogen interactions underlying this condition.
AB - Campylobacter enterocolitis may lead to post-infection irritable bowel syndrome (PI-IBS) and while some C. jejuni strains are more likely than others to cause human disease, genomic and virulence characteristics promoting PI-IBS development remain uncharacterized. We combined pangenome-wide association studies and phenotypic assays to compare C. jejuni isolates from patients who developed PI-IBS with those who did not. We show that variation in bacterial stress response (Cj0145_phoX), adhesion protein (Cj0628_CapA), and core biosynthetic pathway genes (biotin: Cj0308_bioD; purine: Cj0514_purQ; isoprenoid: Cj0894c_ispH) were associated with PI-IBS development. In vitro assays demonstrated greater adhesion, invasion, IL-8 and TNFα secretion on colonocytes with PI-IBS compared to PI-no-IBS strains. A risk-score for PI-IBS development was generated using 22 genomic markers, four of which were from Cj1631c, a putative heme oxidase gene linked to virulence. Our finding that specific Campylobacter genotypes confer greater in vitro virulence and increased risk of PI-IBS has potential to improve understanding of the complex host-pathogen interactions underlying this condition.
UR - http://www.scopus.com/inward/record.url?scp=85113861352&partnerID=8YFLogxK
U2 - 10.1038/s42003-021-02554-8
DO - 10.1038/s42003-021-02554-8
M3 - Article (Academic Journal)
C2 - 34462533
AN - SCOPUS:85113861352
SN - 2399-3642
VL - 4
JO - Communications Biology
JF - Communications Biology
IS - 1
M1 - 1015
ER -