Effects and possible mechanism of a picosecond pulsed electric field on angiogenesis in cervical cancer in vitro

Wu,Limei; Wu,Yutong; Xiong,Zhengai; Yao,Chenguo; Zeng,Manman; Zhang,Ruizhe; Hua,Yuanyuan

doi:10.3892/ol.2018.9782

Effects and possible mechanism of a picosecond pulsed electric field on angiogenesis in cervical cancer in vitro

Authors:
- Limei Wu
- Yutong Wu
- Zhengai Xiong
- Chenguo Yao
- Manman Zeng
- Ruizhe Zhang
- Yuanyuan Hua
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Affiliations: Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China, State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University, Chongqing 400044, P.R. China, Department of Gynecology, Women and Children's Hospital of Guangdong, Guangzhou, Guangdong 511442, P.R. China, Equipment Status Evaluation Center, Beijing Electric Power Research Institute, Beijing 100075, P.R. China
Published online on: November 30, 2018 https://doi.org/10.3892/ol.2018.9782
Pages: 1517-1522
Copyright: © Wu et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Picosecond pulsed electric field (psPEF) is an athermal, minimally invasive and local ablative biomedical engineering technique used in cancer therapy. However, to the best of our knowledge, the effect of psPEF on angiogenesis in cervical cancer is unknown. Therefore, the aim of the current study was to investigate the effects and possible mechanism of psPEF on angiogenesis in cervical cancer in vitro. HeLa cell and human umbilical vein endothelial cell (HUVEC) suspensions were exposed to psPEF with an increasing gradient of electric field intensity (0, 200, 400 and 600 kV/cm). A Cell Counting kit‑8 assay and flow cytometry were used to investigate the effect of psPEF on the proliferation and apoptosis of HUVECs. The invasion, migration and tube formation capabilities of HUVECs following psPEF treatment were investigated by Transwell invasion assay, scratch test and lumen formation assay, respectively. Changes in the protein and mRNA levels of angiogenesis‑associated factors in HeLa cells were detected by western blot analysis and reverse transcription‑quantitative polymerase chain reaction. psPEF was identified to inhibit proliferation and tube formation, and induce apoptosis and necrosis of HUVECs in a dose‑dependent manner. psPEF was revealed to decrease the protein and mRNA expression levels of vascular endothelial growth factor and hypoxia‑inducible factor 1α in HeLa cells. In summary, psPEF exhibited anti‑angiogenic effects in cervical cancer in vitro by exerting direct effects on HUVECs and indirect effects on angiogenesis‑associated factors in HeLa cells.

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