Home > Publications database > Refined culture conditions with increased physiological relevance uncover oncogene-dependent metabolic signatures in Ewing sarcoma spheroids. |
Journal Article | DKFZ-2025-00311 |
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2025
Cell Press
Cambridge, MA
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Please use a persistent id in citations: doi:10.1016/j.crmeth.2025.100966
Abstract: Ewing sarcoma (EwS) cell line culture largely relies on standard techniques, which do not recapitulate physiological conditions. Here, we report on a feasible and cost-efficient EwS cell culture technique with increased physiological relevance employing an advanced medium composition, reduced fetal calf serum, and spheroidal growth. Improved reflection of the transcriptional activity related to proliferation, hypoxia, and differentiation in EwS patient tumors was detected in EwS cells grown in this refined in vitro condition. Moreover, transcriptional signatures associated with the oncogenic activity of the EwS-specific FET::ETS fusion transcription factors in the refined culture condition were shifted from proliferative toward metabolic gene signatures. The herein-presented EwS cell culture technique with increased physiological relevance provides a broadly applicable approach for enhanced in vitro modeling relevant to advancing EwS research and the validity of experimental results.
Keyword(s): CP: Cancer biology ; CP: Metabolism ; Ewing sarcoma ; fetal calf serum ; modeling adequacy ; physiological media ; refined cell culture ; spherioidal growth ; transcriptome
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