Title: No association between C-reactive protein gene polymorphisms and decrease of C-reactive protein serum concentration after infliximab treatment in Crohn's disease
Authors: Willot, Stéphanie ×
Vermeire, Severine
Ohresser, Marc
Rutgeerts, Paul
Paintaud, Gilles
Belaiche, Jacques
De Vos, Martine
Van Gossum, André
Franchimont, Denis
Colombel, Jean-Fréderic
Watier, Hervé
Louis, Edouard #
Issue Date: Dec-2005
Series Title: Pharmacogenetics and genomics vol:16 issue:1 pages:37-42
Abstract: We recently showed an association between the FCGR3A V/F polymorphism and the biological response [assessed on the basis of a C-reactive protein (CRP) concentration decrease] to infliximab in Crohn's disease. The CRP and FCGR3A genes are located on the same 1q23 locus. The present study aimed: (i) to exclude a linkage disequilibrium (LD) between the two genes and (ii) to study the association between CRP polymorphisms and the response to infliximab, particularly the decrease in CRP after treatment, in Crohn's disease patients. FCGR3A (V/F) polymorphism and three CRP polymorphisms (-717G/A, 1444C/T, CRP 4A/G) were determined in 206 healthy blood donors and 189 Crohn's disease patients who had received infliximab for either refractory luminal or fistulizing Crohn's disease. Clinical response was defined as complete, partial or absent according to the same definition as in controlled trials. The biological response was defined on the basis of CRP decrease. There was no LD between CRP and FCGR3A in healthy donors or Crohn's disease patients. CRP polymorphisms had no impact on CRP decrease after infliximab. The proportions of Crohn's disease having a positive clinical or biological response were not statistically different among the various genotypes of CRP polymorphisms. There was no LD between CRP and FCGR3A polymorphisms. CRP polymorphisms were not associated with the response to infliximab in Crohn's disease.
ISSN: 1744-6872
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Translational Research in GastroIntestinal Disorders
× corresponding author
# (joint) last author

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