An oncolytic adenovirus expressing interleukin-24 enhances antitumor activities in combination with paclitaxel in breast cancer cells

  • Authors:
    • Lin Fang
    • Qian Cheng
    • Jin Bai
    • Ying-Dong Qi
    • Jun-Jie Liu
    • Lian-Tao Li
    • Jun-Nian Zheng
  • View Affiliations

  • Published online on: September 13, 2013     https://doi.org/10.3892/mmr.2013.1680
  • Pages: 1416-1424
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Abstract

Oncolytic adenoviruses are a novel class of anticancer treatment, based upon their ability to replicate selectively within malignant cells resulting in cell lysis. The replication‑selective adenovirus, ZD55‑IL‑24, was constructed by harboring an E1B‑55 kDa deletion and arming with interleukin-24 (IL-24). The microtubule‑stabilizing drug paclitaxel (PTX) exhibits activity in relapsed cancer. In the present study, the synergistic antitumor effects of the combination of PTX and ZD55‑IL‑24 on breast cancer cells was investigated. The results demonstrated that there were different roles for PTX in the expression of transgenic mRNA and protein. ZD55‑IL‑24 combined with PTX induced marked growth inhibition of MDA‑MB‑231 and Bcap‑37 cells. PTX increased viral uptake and appeared not to alter the replication of ZD55‑IL‑24 in breast cancer cells. Annexin V‑fluorescein isothiocyanate/propidium iodide staining and the Hoechst 33258 assay indicated that ZD55‑IL‑24 induced an increase in the number of apoptotic cells when administered in combination with PTX. It was demonstrated that ZD55‑IL‑24 conjugated with PTX was highly concomitant, and increased proapoptotic proteins levels, activated caspase‑3, -7 and -9 and downregulated anti‑apoptotic proteins. These results suggested that ZD55‑IL‑24 in combination with PTX exhibited a markedly increased cytotoxic and apoptosis‑inducing effect in breast cancer cells. Thus, this chemo‑gene‑viro therapeutic strategy was demonstrated to be superior to conventional chemotherapy or gene‑viro therapy alone.
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November 2013
Volume 8 Issue 5

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Fang L, Cheng Q, Bai J, Qi Y, Liu J, Li L and Zheng J: An oncolytic adenovirus expressing interleukin-24 enhances antitumor activities in combination with paclitaxel in breast cancer cells. Mol Med Rep 8: 1416-1424, 2013
APA
Fang, L., Cheng, Q., Bai, J., Qi, Y., Liu, J., Li, L., & Zheng, J. (2013). An oncolytic adenovirus expressing interleukin-24 enhances antitumor activities in combination with paclitaxel in breast cancer cells. Molecular Medicine Reports, 8, 1416-1424. https://doi.org/10.3892/mmr.2013.1680
MLA
Fang, L., Cheng, Q., Bai, J., Qi, Y., Liu, J., Li, L., Zheng, J."An oncolytic adenovirus expressing interleukin-24 enhances antitumor activities in combination with paclitaxel in breast cancer cells". Molecular Medicine Reports 8.5 (2013): 1416-1424.
Chicago
Fang, L., Cheng, Q., Bai, J., Qi, Y., Liu, J., Li, L., Zheng, J."An oncolytic adenovirus expressing interleukin-24 enhances antitumor activities in combination with paclitaxel in breast cancer cells". Molecular Medicine Reports 8, no. 5 (2013): 1416-1424. https://doi.org/10.3892/mmr.2013.1680