1
|
Rao W, Zhao S, Yu J, Lu X, Zynger DL, He X. Enhanced enrichment of prostate cancer stem-like cells with miniaturized 3D culture in liquid core-hydrogel shell microcapsules. Biomaterials 2014; 35:7762-7773. [PMID: 24952981 DOI: 10.1016/j.biomaterials.2014.06.011] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Accepted: 06/03/2014] [Indexed: 02/07/2023]
Abstract
Cancer stem-like cells (CSCs) are rare subpopulations of cancer cells that are reported to be responsible for cancer resistance and metastasis associated with conventional cancer therapies. Therefore, effective enrichment/culture of CSCs is of importance to both the understanding and treatment of cancer. However, it usually takes approximately 10 days for the widely used conventional approach to enrich CSCs through the formation of CSC-containing aggregates. Here we report the time can be shortened to 2 days while obtaining prostate CSC-containing aggregates with better quality based on the expression of surface receptor markers, dye exclusion, gene and protein expression, and in vivo tumorigenicity. This is achieved by encapsulating and culturing human prostate cancer cells in the miniaturized 3D liquid core of microcapsules with an alginate hydrogel shell. The miniaturized 3D culture in core-shell microcapsules is an effective strategy for enriching/culturing CSCs in vitro to facilitate cancer research and therapy development.
Collapse
Affiliation(s)
- Wei Rao
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH 43210, USA.,Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Shuting Zhao
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH 43210, USA.,Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Jianhua Yu
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA.,Division of Hematology, The Ohio State University, Columbus, OH 43210, USA
| | - Xiongbin Lu
- Department of Cancer Biology, University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA
| | - Debra L Zynger
- Division of Genitourinary Pathology, The Ohio State University, Columbus, OH 43210, USA
| | - Xiaoming He
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH 43210, USA.,Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA.,Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
| |
Collapse
|