Journal
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A
Volume 107, Issue 2, Pages 383-391Publisher
WILEY
DOI: 10.1002/jbm.a.36549
Keywords
3D bioprinting; cancer stem cell; enrichment; glioma
Funding
- Guangdong Innovative Research Team Program, China [2011S055]
- National Natural Science Foundation of China [81702457]
- Shenzhen Special Fund for Global Experts Team, China [KQTD201209]
- China National Nuclear Corporation Youth Innovation Team Project
- Suzhou Science and Technology Project [SYS201723]
- Postgraduate Research & Practice Innovation Program of Jiangsu Province [KYCX17_ 1993]
- Clinical Cutting-edge Technology, Social Development Projects in Jiangsu Province [BE2016668]
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Glioma stem cells (GSCs) are thought to be the root cause of tumor recurrence and drug resistance in glioma patients. In-depth study of GSCs is of great significance for developing the treatment strategies of glioma. Unfortunately, it is difficult and takes complicated process to obtain GSCs. Therefore, establishing an ideal in vitro model for enriching GSCs will greatly promote the study of GSCs. In this study, the stemness properties of glioma cells were enhanced in three-dimensional (3D) bioprinted tumor model. Furthermore, the possible molecular mechanism of GSCs enrichment: epithelial-mesenchymal transition (EMT) was explored. Compared with two-dimensional cultured cells, the proportion of GSCs and EMT-related genes in 3D cultured cells were significantly increased. Moreover, the 3D cultured glioma cells with improved stemness properties resulted in higher drug resistance in vitro and tumorigenicity in vivo. Taken together, 3D bioprinted glioma cell-laden scaffold provides a proper platform for the enrichment of GSCs and it is expected to further promote the research on glioma drug resistance. (c) 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 107A: 383-391, 2019.
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