Abstract
Purpose
Improved therapeutic options for cervical cancer are needed. The purpose of this study was to evaluate the synergetic, inhibitory effects of ultrasound-mediated paclitaxel (PTX)- and miR-34a-loaded microbubbles (MBs) on cervical cancer.
Methods
U14 cervical cancer cells and xenograft mouse tumors were treated with PTX-miR-34a-MBs.
Results
Levels of miR-34a increased in vitro and vivo after treatment with ultrasound-mediated PTX-miR-34a-MBs. Furthermore, this treatment decreased the proliferation of cervical cancer cells, microvessel density, and the expression of Bcl-2 and CDK6, both in vitro and in vivo. Furthermore, Bax expression was increased in the in vivo model. And, tumor volume and weight were significantly reduced by 78.57% and 87.97%, respectively (P < 0.01).
Conclusions
These results indicate that ultrasound-mediated PTX-miR-34a-MBs synergistically inhibit the growth of cervical cancer via the upregulation of miR-34a and downregulation of Bcl-2 and CDK6. Thus, PTX-miR-34a-MBs in combination with ultrasound microbubbles are a promising anticancer delivery strategy for treating cervical cancer.
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Acknowledgements
This work was supported by the Medical College of Three Gorges University, Hubei Key Laboratory of the Tumor Microenvironment and Immunotherapy Foundation of China [Grant numbers 2016KZL09, 2015KZL05, and 2016PY052].
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Yu, J., Zhao, Y., Liu, C. et al. Synergistic anti-tumor effect of paclitaxel and miR-34a combined with ultrasound microbubbles on cervical cancer in vivo and in vitro. Clin Transl Oncol 22, 60–69 (2020). https://doi.org/10.1007/s12094-019-02131-w
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DOI: https://doi.org/10.1007/s12094-019-02131-w