Journal
ONCOTARGET
Volume 8, Issue 40, Pages 69185-69197Publisher
IMPACT JOURNALS LLC
DOI: 10.18632/oncotarget.20193
Keywords
culture conditions; culture media; glioblastoma; heterogeneity; drug discovery
Categories
Funding
- National Institutes of Health/National Cancer Institute [R01-CA136495]
- CNPq
- FAPERJ
- [CAPES/PROBITEC004/2012]
- [FAPERGS/PPSUS 1210-2551/13-1]
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In cancer research, the use of established cell lines has gradually been replaced by primary cell cultures due to their better representation of in vivo cancer cell behaviors. However, a major challenge with primary culture involves the finding of growth conditions that minimize alterations in the biological state of the cells. To ensure reproducibility and translational potentials for research findings, culture conditions need to be chosen so that the cell population in culture best mimics tumor cells in vivo. Glioblastoma (GBM) is one of the most aggressive and heterogeneous tumor types and the GBM research field would certainly benefit from culture conditions that could maintain the original plethora of phenotype of the cells. Here, we review culture media and supplementation options for GBM cultures, the rationale behind their use, and how much those choices affect drug-screening outcomes. We provide an overview of 120 papers that use primary GBM cultures and discuss the current predominant conditions. We also show important primary research data indicating that mis-cultured glioma cells can acquire unnatural drug sensitivity, which would have devastating effects for clinical translations. Finally, we propose the concurrent test of four culture conditions to minimize the loss of cell coverage in culture.
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