Mitochondrial lipid peroxides and antioxidant enzymes in colorectal adenocarcinoma tissues

Kanbagli O., Ozdemirler G., Bulut T. , Yamaner S., Aykac-Toker G., Uysal M.

JAPANESE JOURNAL OF CANCER RESEARCH, cilt.91, sa.12, ss.1258-1263, 2000 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 91 Konu: 12
  • Basım Tarihi: 2000
  • Doi Numarası: 10.1111/j.1349-7006.2000.tb00912.x
  • Sayfa Sayıları: ss.1258-1263


Lipid peroxide levels and superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), and glutathione transferase (GST) activities were investigated in mitochondrial fractions obtained from tumorous and nontumorous colorectal tissues of fourteen patients with colon and rectum cancer. Histopathological evaluations, including type, stage, necrosis and lymphocyte infiltration were also performed for each patient. The activities of SOD, GSH-Px and GST were increased significantly, but lipid peroxide levels remained unchanged in mitochondria obtained from tumors compared to adjacent normal tissues of subjects with colorectal cancer. When the patients mere grouped according to their histopathological evaluation, such as type, stage, necrosis and lymphocyte infiltration, no relationship was observed between the histopathological results and the mitochondrial lipid peroxidation or antioxidant enzyme activities.