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Bevacizumab followed by chemotherapy is potential therapy for gastric cancer.

Lv, Yalei; Song, Lina; Chang, Liang; Liu, Yan; Zhang, Xiaolin; Wang, Yudong; Wang, Long; Liu, Wei.
J BUON; 21(6): 1466-1470, 2016 Nov-Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28039709

PURPOSE:

To investigate the antitumor effects of the angiogenesis inhibitor bevacizumab combined with chemotherapy, and the application of in vivo imaging technology of growth of fluorescence-labelled gastric cancer (GC) in nude mice.

METHODS:

Twenty-five nude mice were randomly divided into 5 groups (A-E). Subcutaneous xenograft of human MGC803 cells was transplanted to nude mice, followed by different treatments for the groups, including A (bevacizumab combined with chemotherapy), B (24-h chemotherapy with FP followed by bevacizumab), C (bevacizumab 24-h followed by FP chemotherapy), D (bevacizumab only) and E (normal saline). Then, dynamic variation of tumor growth during 4 weeks was evaluated by calculating the tumor inhibition rate and fluorescence signal strength by in vivo imaging system.

RESULTS:

After 28-day treatment, fluorescence signal strength in the groups A-D changed significantly compared with the E (control) group, while tumor inhibition rate in C group was highest (68.42%). Furthermore, on the 4th week, the fluorescence signal value in C group was lowest.

CONCLUSIONS:

Administration of bevacizumab followed by chemotherapy was more effective therapeutic method for GC. The in vivo imaging could show off dynamic variation of tumors and was a sensitive and objective detection method.
Selo DaSilva