Bioprinted HepG2 cells for studying sonodynamic anticancer activity of chlorine e6
10.16438/j.0513-4870.2020-0755
- VernacularTitle:生物打印HepG2细胞用于二氢卟酚e6的声动力抗癌活性研究
- Author:
Xiao-rui LI
1
;
Quan-feng DENG
2
;
Yong LUO
1
;
Bing-cheng LIN
3
;
Wei-jie ZHAO
1
;
Xiu-li ZHANG
2
Author Information
1. Dalian University of Technology, Dalian 116024, China
2. Soochow University, Suzhou 215123, China
3. Dalian Institute of Chemical Physics, Chinese Academy of Science, Dalian 116023, China
- Publication Type:Research Article
- Keywords:
bioprinting;
biocompatible material;
liver neoplasm;
antineoplastic agent;
ultrasound therapy
- From:
Acta Pharmaceutica Sinica
2020;55(12):2976-2981
- CountryChina
- Language:Chinese
-
Abstract:
This paper showed bioprinted HepG2 tumor tissues used for studying the sonodynamic anticancer activity of chlorine e6 (Ce6). HepG2 cells were printed by using alginate/gelatin/hydroxyethyl cellulose composite biomaterial as bio ink and cell viability was detected with Live-Dead assay and MTT proliferation. The ultrasonic intensities of self-built micro ultrasonic device under different powers were estimated by using the temperature change caused by the conversion of acoustic energy to heat energy. Ce6 of 14.3 and 28.6 μg·mL-1 were acted on two-dimensional cultured and three-dimensional printed HepG2 cells, and the antitumor activity of Ce6 was detected by MTT method with ultrasound intensity of 0.15 W·cm2 for 60 s. The results showed that the activities of bioprinted HepG2 cells were as high as 95%, and tumor microspheres were formed after 7 days of culture. The ultrasound intensity was lower than 3 W·cm2, which belonged to low ultrasound intensity and had no damage to normal hepatocyte LO2 cells. By comparing the antitumor activity of Ce6 on 2D cultured and printed HepG2 cells, it was found that the anticancer activity of Ce6 on bioprinted HepG2 cells was 63.4% lower than that on 2D culture cells, indicating the acoustic drug resistance of three-dimensional tumor model. Bioprinted tumor tissues show the potential in the application of in vitro activity evaluation models for sonodynamic therapy.
