Re-188 Enhances the Inhibitory Effect of Bevacizumab in Non-Small-Cell Lung Cancer

Xiao, Jie; Xu, GX; Li,; Li, Y; Liu, KG; Tan, JD; Shen, Hua; Shi, H; Cheng, D

HERO ID

4850101

Reference Type

Journal Article

Year

2016

HERO ID 4850101
In Press No
Year 2016
Title Re-188 Enhances the Inhibitory Effect of Bevacizumab in Non-Small-Cell Lung Cancer
Authors Xiao, Jie; Xu, GX; Li,; Li, Y; Liu, KG; Tan, JD; Shen, Hua; Shi, H; Cheng, D
Journal Molecules
Volume 21
Issue 10 (2016)
Page Numbers 1308
Abstract   The malignant behaviors of solid tumors such as growth, infiltration and metastasis are mainly nourished by tumor neovascularization. Thus, anti-angiogenic therapy is key to controlling tumor progression. Bevacizumab, a humanized anti-vascular endothelial growth factor (VEGF) antibody, plus chemotherapy or biological therapy can prolong survival for cancer patients, but treatment-related mortality is a concern. To improve inhibitory effect and decrease side-effects on non-small-cell lung cancer (NSCLC), we used Re-188, which is a β emitting radionuclide, directly labeled with bevacizumab for radioimmunotherapy in a human A549 tumor model. Cytotoxic assay data showed that, after 188ReO4- or 188Re-bevacizumab at different concentration for 4 and 24 h, a time- and radioactivity does-dependent reduction in cell viability occurred. Also, an apoptosis assay conformed great apoptosis in the 188Re-bevacizumab group compared with controls and other treatment groups. In vivo, tumor volumes in the 188Re-bevacizumab (11.1 MBq/mice) group were not reduced but growth was delayed compared with other groups. Thus, 188Re-bevacizumab enhanced the therapeutic effect of bevacizumab, suggesting a potential therapeutic strategy for NSCLC treatment.
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