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Article

AAV2-mediated gene transfer of VEGF-Trap with potent suppression of primary breast tumor growth and spontaneous pulmonary metastases by long-term expression

  • Authors:
    • Lian Lu
    • Shun-Tao Luo
    • Hua Shan Shi
    • Meng Li
    • Hai Long Zhang
    • Sha Sha He
    • Yan Liu
    • Ying Pan
    • Li Yang
  • View Affiliations / Copyright

    Affiliations: State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Sichuan 610041, P.R. China
  • Pages: 1332-1338
    |
    Published online on: July 16, 2012
       https://doi.org/10.3892/or.2012.1915
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Abstract

Vascular endothelial growth factor (VEGF) is an important signaling protein and a predominant mediator of angiogenesis in tumor growth and metastasis. Therefore, antagonism of the VEGF pathway results in inhibition of abnormal angiogenesis, then suppression of tumor growth and metastasis. VEGF-Trap, a high-affinity soluble decoy receptor, is currently in phase II clinical trails, and has demonstrated more efficacy in different types of solid tumors by intravenous injection every two weeks. In our study, we used recombinant AAV2 as a delivery vehicle to achieve long-lasting expression of VEGF Trap protein in a mouse model for the first time. We report that AAV2-VEGF-Trap can be safely administered and sustained expression in vivo via a single intravenously administration, simultaneously suppressing primary tumor growth and preventing the pulmonary metastases of 4T1 tumors. Decreased microvessel density and increased tumor cell apoptosis were observed in the treatment group. AAV2-VEGF-Trap can obviously decrease not only the concentration of VEGF in sera, but also the concentration of other angiogenic factors, such as aFGF, bFGF, angiopoietin-1 and others. These studies suggest that AAV-mediated long-term expression of VEGF-Trap is a useful and safe tool to block tumor progression and inhibit spontaneous pulmonary metastases.
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Copy and paste a formatted citation
Spandidos Publications style
Lu L, Luo S, Shi HS, Li M, Zhang HL, He SS, Liu Y, Pan Y and Yang L: AAV2-mediated gene transfer of VEGF-Trap with potent suppression of primary breast tumor growth and spontaneous pulmonary metastases by long-term expression. Oncol Rep 28: 1332-1338, 2012.
APA
Lu, L., Luo, S., Shi, H.S., Li, M., Zhang, H.L., He, S.S. ... Yang, L. (2012). AAV2-mediated gene transfer of VEGF-Trap with potent suppression of primary breast tumor growth and spontaneous pulmonary metastases by long-term expression. Oncology Reports, 28, 1332-1338. https://doi.org/10.3892/or.2012.1915
MLA
Lu, L., Luo, S., Shi, H. S., Li, M., Zhang, H. L., He, S. S., Liu, Y., Pan, Y., Yang, L."AAV2-mediated gene transfer of VEGF-Trap with potent suppression of primary breast tumor growth and spontaneous pulmonary metastases by long-term expression". Oncology Reports 28.4 (2012): 1332-1338.
Chicago
Lu, L., Luo, S., Shi, H. S., Li, M., Zhang, H. L., He, S. S., Liu, Y., Pan, Y., Yang, L."AAV2-mediated gene transfer of VEGF-Trap with potent suppression of primary breast tumor growth and spontaneous pulmonary metastases by long-term expression". Oncology Reports 28, no. 4 (2012): 1332-1338. https://doi.org/10.3892/or.2012.1915
Copy and paste a formatted citation
x
Spandidos Publications style
Lu L, Luo S, Shi HS, Li M, Zhang HL, He SS, Liu Y, Pan Y and Yang L: AAV2-mediated gene transfer of VEGF-Trap with potent suppression of primary breast tumor growth and spontaneous pulmonary metastases by long-term expression. Oncol Rep 28: 1332-1338, 2012.
APA
Lu, L., Luo, S., Shi, H.S., Li, M., Zhang, H.L., He, S.S. ... Yang, L. (2012). AAV2-mediated gene transfer of VEGF-Trap with potent suppression of primary breast tumor growth and spontaneous pulmonary metastases by long-term expression. Oncology Reports, 28, 1332-1338. https://doi.org/10.3892/or.2012.1915
MLA
Lu, L., Luo, S., Shi, H. S., Li, M., Zhang, H. L., He, S. S., Liu, Y., Pan, Y., Yang, L."AAV2-mediated gene transfer of VEGF-Trap with potent suppression of primary breast tumor growth and spontaneous pulmonary metastases by long-term expression". Oncology Reports 28.4 (2012): 1332-1338.
Chicago
Lu, L., Luo, S., Shi, H. S., Li, M., Zhang, H. L., He, S. S., Liu, Y., Pan, Y., Yang, L."AAV2-mediated gene transfer of VEGF-Trap with potent suppression of primary breast tumor growth and spontaneous pulmonary metastases by long-term expression". Oncology Reports 28, no. 4 (2012): 1332-1338. https://doi.org/10.3892/or.2012.1915
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