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Synergistic anti-tumor effect of paclitaxel and miR-34a combined with ultrasound microbubbles on cervical cancer in vivo and in vitro

  • J. Yu
  • Y. ZhaoEmail author
  • C. Liu
  • B. Hu
  • M. Zhao
  • Y. Ma
  • J. Jiang
Research Article
  • 10 Downloads

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.

Keywords

Microbubble Ultrasound Paclitaxel MicroRNA-34a Uterine cervical 

Notes

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].

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

All procedures performed in studies involving animals were in accordance with the ethical standards of the animal experimental committee of China Three Gorges University.

Informed consent

For this type of study, no formal consent is required.

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Copyright information

© Federación de Sociedades Españolas de Oncología (FESEO) 2019

Authors and Affiliations

  1. 1.Medical College of China, Hubei Key Laboratory of Tumor Microenvironment and ImmunotherapyThree Gorges UniversityYichangChina
  2. 2.Department of UltrasonographyHubei Cancer HospitalWuhanChina
  3. 3.Department of Ultrasonography, The Second Clinical Medical College of ChinaThree Gorges UniversityYichangChina

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