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Comparison of NAT1, NAT2 and GSTT2-2 activities in normal and neoplastic human breast tissues.

Authors
  • Geylan-Su, Y S
  • Isgör, B
  • Coban, T
  • Kapucuoglu, N
  • Aydintug, S
  • Iscan, M
  • Iscan, M
  • Güray, T
Type
Published Article
Journal
Neoplasma
Publication Date
Jan 01, 2006
Volume
53
Issue
1
Pages
73–78
Identifiers
PMID: 16416017
Source
Medline
License
Unknown

Abstract

In this study, arylamine N-acetyltransferases, NATs (E.C.2.3.1.5) and glutathione-S-transferase-T2-2, GSTT2-2 (E.C.2.5.1.18) enzyme activities in the breast tumor and surrounding tumor-free tissues of 22 female breast cancer patients with infiltrating ductal carcinoma were measured. The possible impacts of grade of malignancy, chemotherapy treatment, estrogen receptor status and menopausal status on all enzyme activities were evaluated. The results showed that, both NAT2 and GSTT2-2 display significant differences between tumor and tumor-free breast tissues, while no difference was observed in NAT1. Grade of malignancy seems to be positively associated with NAT1 and negatively associated with GSTT2-2. Though, both NAT2 and GSTT2-2 have increased mean tumor activities, the grade of malignancy, chemotherapy status, menopausal status or estrogen receptor status are not correlated statistically.

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