Colonic biopsy mRNA and serum samples were analysed of patients with a history of biological therapy failure (BF) and those without (BN). Samples from healthy subjects were analysed as controls. Biopsies from UC patients had a gene expression disease profile of 4,095 probe sets, including genes involved in inflammatory response, tissue remodelling and wound healing, host-microbe interaction, intestinal permeability, and solute transport. BF and BN patients shared almost identical disease profiles.
At baseline, BF and BN patients had similar serum profiles with significantly elevated levels of IFNγ, IL-17A, IL-22, SAA, NGAL, MMPs, and TNF compared with the healthy controls. Normalisation of IFNγ, SAA, IL-17A, and IL-22 was first detected in responders to ustekinumab at week 4, and continued to improve through week 8. A trend of normalisation of MMPs, IL-10, and NGAL was observed in ustekinumab responders; this trend was weaker or absent in ustekinumab non-responders and placebo-treated patients. TNF was elevated in UC prior to treatment and was not normalised by ustekinumab induction therapy.
- Li K, et al. ECCO 2019, OP13.
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Table of Contents: ECCO 2019
Featured articles
Interview with Prof. Janneke van der Woude
New Compounds: Study Results
Short-term and Long-term Treatment Results
The right drug for the right patient
Vedolizumab superior to adalimumab in ulcerative colitis
Complementary and Alternative Medicine
Crohn’s disease exclusion diet + partial enteral nutrition in paediatric Crohn’s disease
Microbial composition and psychological wellbeing
Remission
Early remission of Crohn’s disease prevents progression
Proactive adalimumab trough measurements
Observational Studies
IBD risk of treatment with IL-17 antagonists
Basic and Preclinical Research
Immune cells and microbes: a happy marriage?
Genetics
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