Glucose transporter-1 (GLUT-1): a potential marker of prognosis in rectal carcinoma?

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Cooper R., SARIOĞLU S., SÖKMEN S., Fuzun M., Kupelioglu A., Valentine H., ...Daha Fazla

BRITISH JOURNAL OF CANCER, cilt.89, sa.5, ss.870-876, 2003 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 89 Sayı: 5
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1038/sj.bjc.6601202
  • Dergi Adı: BRITISH JOURNAL OF CANCER
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.870-876
  • Anahtar Kelimeler: GLUT-1, rectal cancer, hypoxia
  • Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

The aim of the study is to evaluate the pattern and level of expression of glucose transporter-1 (GLUT-1) in rectal carcinoma in relation to outcome as a potential surrogate marker of tumour hypoxia. Formalin-fixed tumour sections from 43 patients with rectal carcinoma, who had undergone radical resection with curative intent, were immunohistochemically stained for GLUT-1. A mean of three sections per tumour ( range 1 - 12) were examined. Each section was semiquantitatively scored; 0, no staining; 1, <10%; 2, 10 - 50%; 3, >50% and a score given for the whole section, the superficial ( luminal) and deep ( mural) part of the tumour. Staining was seen in 70% of tumours. Increased staining was noted adjacent to necrosis and ulceration. A diffuse and patchy pattern of staining, with and without colocalisation to necrosis was seen. Patients with high GLUT-1-expressing tumours ( score 3 vs 0 - 2) had a significantly poorer overall survival ( P = 0.041), which was associated with poorer metastasis-free survival with no difference in local control. No significant correlation was seen with other prognostic factors. There was a strong correlation between the score for the superficial and deep parts of the tumour (r = 0.81), but a significant relationship with outcome was only found in the deep part ( P = 0.003 vs P = 0.46). In conclusion, increased GLUT-1 expression in rectal tumours was an adverse prognostic factor and is worth further evaluation as a predictive marker of response to therapy.