OBJECTIVES: Our study aims to find the relationship between metabolic enzyme thiopurine S-methyltransferase (TPMT) gene polymorphisms and clinical output of the therapy with azathioprine. We focused on patients who experienced leucopenia caused by high blood levels of active azathioprine metabolites.
DESIGN: Our group consists of 87 patients who have been treated by azathioprine. 21 individuals experienced leucopenia during treatment with standard dose of azathioprine. We have used PCR-REA and "real-time" PCR methods for genotype detection G238C, G460G and A719G substitutions in TPMT gene.
RESULTS: We have found statistical association between the presence of non-standard TPMT alleles and adverse event associated with azathioprine treatment - leucopenia (p=0.0033).
CONCLUSION: Our results confirm that TPMT genotyping prior to the treatment with azathioprine could predict patients with genetic predisposition for serious leucopenia and seems to be a useful genetic marker for individualisation of the therapy.
ISSN: 0172-780X |
ISSN-L: 0172-780X |
eISSN 2354-4716
www.nel.edu Editor-in-Chief: Peter G. Fedor-Freybergh
www.nel.edu Editor-in-Chief: Peter G. Fedor-Freybergh