A 3D biophysical model for cancer spheroid cell-enhanced invasion in collagen-oriented fiber microenvironment

• 作者: Gao Wang Guo Chen Guoqiang Li Hongfei Zhang Jianwei Shuai Ling Xiong Liyu Liu Miaomiao Hai Yanping Liu
• 来源期刊: 中国物理B（英文版）
• 年，卷（期）: 2020,（9）
• 所属期刊栏目: INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY
• 页码范围: 656-664
• 页数: 9页
• 语种: 英文
• DOI: 10.1088/1674-1056/ab9c02

摘要

The process of in situ tumors developing into malignant tumors and exhibiting invasive behavior is extremely complicated.From a biophysical point of view,it is a phase change process affected by many factors,including cell-to-cell,cell-to-chemical material,cell-to-environment interaction,etc.In this study,we constructed spheroids based on green fluorescence metastatic breast cancer cells MDA-MB-231 to simulate malignant tumors in vitro,while constructed a threedimensional (3D) biochip to simulate a micro-environment for the growth and invasion of spheroids.In the experiment,the 3D spheroid was implanted into the chip,and the oriented collagen fibers controlled by collagen concentration and injection rate could guide the MDA-MB-231 cells in the spheroid to undergo directional invasion.The experiment showed that the oriented fibers greatly accelerated the invasion speed of MDA-MB-231 cells compared with the traditional uniform tumor micro-environment,namely obvious invasive branches appeared on the spheroids within 24 hours.In order to analyze this interesting phenomenon,we have developed a quantitative analyzing approach to explore strong angle correlation between the orientation of collagen fibers and invasive direction of cancer cell.The results showed that the oriented collagen fibers produced by the chip can greatly stimulate the invasion potential of cancer cells.This biochip is not only conducive to modeling cancer cell metastasis and studying cell invasion mechanisms,but also has the potential to build a quantitative evaluation platform that can be used in future chemical drug treatments.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	Miaomiao Hai		1	0	0.0	0.0
2	Yanping Liu		1	0	0.0	0.0
3	Ling Xiong		1	0	0.0	0.0
4	Guoqiang Li		1	0	0.0	0.0
5	Gao Wang		1	0	0.0	0.0
6	Hongfei Zhang		1	0	0.0	0.0
7	Jianwei Shuai		1	0	0.0	0.0
8	Guo Chen		1	0	0.0	0.0
9	Liyu Liu		1	0	0.0	0.0