TITLE

Polymorphisms of uridine glucuronosyltransferase gene and irinotecan toxicity: low dose does not protect from toxicity

AUTHOR(S)
Tziotou, Marianna; Kalotychou, Vassiliki; Ntokou, Anna; Tzanetea, Revekka; Armenis, Iakovos; Varsou, Marianna; Konstantopoulos, Konstantinos; Tsavaris, Nicolas; Rombos, Yannis
PUB. DATE
June 2014
SOURCE
Ecancermedicalscience;2014, Vol. 8 Issue 413-446, p1
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Uridine glucuronosyltransferase (UGT) gene polymorphisms have been linked to irinotecan toxicity. Our purpose was to study the association between UGT1A1*28, UGT1A7*2, and UGT1A7*3 polymorphisms and irinotecan toxicity in Greek patients receiving low-dose weekly irinotecan. Blood samples were collected for 46 patients. DNA was extracted and UGT1A1 promoter and UGT1A7 exon 1 genotyping was carried out. Laboratory tests and physical examination were performed on regular basis for the assessment of toxicity. UGT1A1*28 was significantly correlated with both haematologic and non-haematologic toxicity. Moreover, patients carrying UGT1A7 polymorphisms had significant incidence of toxicity. To conclude, UGT polymorphisms play a role in the toxicity of irinotecan, even if the drug is administered in low doses. The genotyping test may be a useful tool for the management of patients who are going to receive irinotecan.
ACCESSION #
97255404

 

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