Abstract
Glucose transporters (Gluts) facilitate glucose uptake and tumors frequently over express the Gluts, especially Glut-1. Breast cancer and lung cancer (NSCLC) cell lines were incubated with anti-Glut-1 antibodies alone or with cisplatin, paclitaxel or gefitinib. Inhibition of proliferation and apoptosis was assessed. Antibodies to Glut-1 inhibited proliferation by 50% and 75% in the tested NSCLC and breast cancer cell lines, respectively. They also potentiate the anti-proliferative effects of cisplatin, paclitaxel and gefitinib. Our results indicate that anti-Glut-1 antibodies inhibit proliferation and induce apoptosis in the evaluated cell lines and provide preliminary evidence of their anti-tumor activity.
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