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September 5, 2025DNAOpen Access

Cell-Free Mitochondrial DNA in Cell Culture Supernatant: Fragment Size Analysis and FBS Contamination Assessment

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Authors

PCPatrizia CesareSCSabrina ColafarinaABAntonella Bonfigli

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Overview

Analysis demonstrates fragmentation differences in cell-free mitochondrial DNA in cancer and normal cells, suggesting contamination risk from fetal bovine serum.

Key Points

  • Cancer cells show the highest level of fragmentation of cell-free mitochondrial DNA compared to fibroblasts.
  • Fragmentation was quantified using indices Q and λ, indicating variability among different human cell lines.
  • Species-specific primers successfully identified bovine mitochondrial DNA contamination in cell culture media.
  • In vitro cellular models can enhance understanding of cfDNA release mechanisms while reducing potential contamination errors.

Cite This Study

Cesare et al. (2025) studied this question.

synapsesocial.com/papers/68c23887b210217d64778449https://doi.org/10.3390/dna5030041
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Also Consider

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  3. 3Cell-free DNA fragmentomics in cancer2025 · 52 citations
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  5. 5Cell-Free DNA Bisulfite Sequencing Reveals Epithelial–Mesenchymal Transition Signatures for Breast Cancer2025