Combination of Curcumin with an Anti-Transferrin Receptor Antibody Suppressed the Growth of Malignant Gliomas In vitro.

AIM Transferrin receptor (TfR) has been used as a target for the molecular cancer therapy due to its higher expression in a variety of tumors. Anti-TfR antibodies combined with chemotherapeutic drugs has showed great potential as a possible cancer therapeutic strategy. In our study, we investigated the anti-tumor effects of anti-TfR monoclonal antibody (mAb) alone or in combination with curcumin in vitro. MATERIAL AND METHODS We detected the apoptosis, proliferation and cell cycle of glioma cells after treated with anti-TfR mAb and curcumin alone or the combinations by flow cytometer. RESULTS Anti-TfR mAb or curcumin could inhibit proliferation of tumor cells. Anti-TfR mAb marked S phase arrest and curcumin induced G2/M arrest in tumor cells. When anti-TfR mAb and curcumin were used simultaneously, a synergistic effect was detected in relation to tumor growth inhibition and the induction of cells necrosis. CONCLUSION These results provided a potential role of anti-TfR mAb-containing curcumin in the treatment for gliomas.