A standardized protocol for sample preparation for scanning electron microscopy to visualize extrachromosomal DNA

Extrachromosomal DNA (ecDNA) are circular DNA structures associated with cancer and drug resistance. One specific type, double minute (DM) chromosomes, has been studied since the 1960s using imaging techniques like cytogenetics and fluorescence microscopy. Specialized techniques such as atomic force...

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Veröffentlicht in:BioTechniques. - 1988. - 76(2024), 7 vom: 26., Seite 311-321
1. Verfasser: A Madren, Jillann (VerfasserIn)
Weitere Verfasser: Chen, Jingting, Dennis, William, Ford, Christina, K White, Kristen, Brunk, Elizabeth
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:BioTechniques
Schlagworte:Journal Article correlative light and electron microscopy double minute chromosomes extrachromosomal DNA fluorescence microscopy scanning electron microscopy DNA, Circular DNA 9007-49-2
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520 |a Extrachromosomal DNA (ecDNA) are circular DNA structures associated with cancer and drug resistance. One specific type, double minute (DM) chromosomes, has been studied since the 1960s using imaging techniques like cytogenetics and fluorescence microscopy. Specialized techniques such as atomic force microscopy (AFM) and scanning electron microscopy (SEM) offer micro to nano-scale visualization, but current sample preparation methods may not optimally preserve ecDNA structure. Our study introduces a systematic protocol using SEM for high-resolution ecDNA visualization. We have optimized the end-to-end procedure, providing a standardized approach to explore the circular architecture of ecDNA and address the urgent need for better understanding in cancer research 
650 4 |a Journal Article 
650 4 |a correlative light and electron microscopy 
650 4 |a double minute chromosomes 
650 4 |a extrachromosomal DNA 
650 4 |a fluorescence microscopy 
650 4 |a scanning electron microscopy 
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700 1 |a Chen, Jingting  |e verfasserin  |4 aut 
700 1 |a Dennis, William  |e verfasserin  |4 aut 
700 1 |a Ford, Christina  |e verfasserin  |4 aut 
700 1 |a K White, Kristen  |e verfasserin  |4 aut 
700 1 |a Brunk, Elizabeth  |e verfasserin  |4 aut 
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