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A novel approach for in vivo DNA footprinting using short double-stranded cell-free DNA from plasma

Here, we present a method for enrichment of double-stranded cfDNA with an average length of ∼40 bp from cfDNA for high-throughput DNA sequencing. This class of cfDNA is enriched at gene promoters and binding sites of transcription factors or structural DNA-binding proteins, so that a genome-wide DNA...

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Main Authors: Müller, Jan (Author) , Hartwig, Christina (Author) , Sonntag, Mirko (Author) , Bitzer, Lisa (Author) , Adelmann, Christopher (Author) , Vainshtein, Yevhen (Author) , Glanz, Karolina (Author) , Decker, Sebastian (Author) , Brenner, Thorsten (Author) , Weber, Georg F. (Author) , Haeseler, Arndt von (Author) , Sohn, Kai (Author)
Format: Article (Journal)
Language:English
Published: August 2024
In: Genome research
Year: 2024, Volume: 34, Issue: 8, Pages: 1185-1195
ISSN:1549-5469
DOI:10.1101/gr.279326.124
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1101/gr.279326.124
Verlag, kostenfrei, Volltext: http://genome.cshlp.org/content/34/8/1185
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Author Notes:Jan Müller, Christina Hartwig, Mirko Sonntag, Lisa Bitzer, Christopher Adelmann, Yevhen Vainshtein, Karolina Glanz, Sebastian O. Decker, Thorsten Brenner, Georg F. Weber, Arndt von Haeseler, and Kai Sohn
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Summary:Here, we present a method for enrichment of double-stranded cfDNA with an average length of ∼40 bp from cfDNA for high-throughput DNA sequencing. This class of cfDNA is enriched at gene promoters and binding sites of transcription factors or structural DNA-binding proteins, so that a genome-wide DNA footprint is directly captured from liquid biopsies. In short double-stranded cfDNA from healthy individuals, we find significant enrichment of 203 transcription factor motifs. Additionally, short double-stranded cfDNA signals at specific genomic regions correlate negatively with DNA methylation, positively with H3K4me3 histone modifications and gene transcription. The diagnostic potential of short double-stranded cell-free DNA (cfDNA) in blood plasma has not yet been recognized. When comparing short double-stranded cfDNA from patient samples of pancreatic ductal adenocarcinoma with colorectal carcinoma or septic with postoperative controls, we identify 136 and 241 differentially enriched loci, respectively. Using these differentially enriched loci, the disease types can be clearly distinguished by principal component analysis, demonstrating the diagnostic potential of short double-stranded cfDNA signals as a new class of biomarkers for liquid biopsies.
Item Description:Online verfügbar: 13. September 2024
Gesehen am 16.04.2025
Physical Description:Online Resource
ISSN:1549-5469
DOI:10.1101/gr.279326.124

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