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© Research
Publication : Clinical biochemistry

Proteomics for prediction and characterization of response to infliximab in Crohn’s disease: a pilot study

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Clinical biochemistry - 06 May 2008

Meuwis MA, Fillet M, Lutteri L, Marée R, Geurts P, de Seny D, Malaise M, Chapelle JP, Wehenkel L, Belaiche J, Merville MP, Louis E

Link to Pubmed [PMID] – 18489908

Clin. Biochem. 2008 Aug;41(12):960-7

OBJECTIVES: Infliximab is the first anti-TNFalpha accepted by the Food and Drug Administration for use in inflammatory bowel disease treatment. Few clinical, biological and genetic factors tend to predict response in Crohn’s disease (CD) patient subcategories, none widely predicting response to infliximab.

DESIGN AND METHODS: Twenty CD patients showing clinical response or non response to infliximab were used for serum proteomic profiling on Surface Enhanced Lazer Desorption Ionisation-Time of Flight-Mass Spectrometry (SELDI-TOF-MS), each before and after treatment. Univariate and multivariate data analysis were performed for prediction and characterization of response to infliximab.

RESULTS: We obtained a model of classification predicting response to treatment and selected relevant potential biomarkers, among which platelet aggregation factor 4 (PF4). We quantified PF4, sCD40L and IL-6 by ELISA for correlation studies.

CONCLUSIONS: This first proteomic pilot study on response to infliximab in CD suggests association between platelet metabolism and response to infliximab and requires validation studies on a larger cohort of patients.

http://www.ncbi.nlm.nih.gov/pubmed/18489908