Circulating Tumor Cell Clustering Shapes DNA Methylation to Enable Metastasis Seeding
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View abstract on PubMed
Summary
This summary is machine-generated.Circulating tumor cell (CTC) clusters promote cancer metastasis through specific DNA methylation changes. Researchers identified FDA-approved drugs that break apart CTC clusters, offering a new strategy to suppress cancer spread.
Area Of Science
- Cancer Biology
- Epigenetics
- Metastasis Research
Background
- Circulating tumor cell (CTC) clusters are associated with increased metastatic potential.
- The biological characteristics and vulnerabilities of CTC clusters are not well understood.
Purpose Of The Study
- To investigate the DNA methylation landscape of single CTCs and CTC clusters.
- To identify vulnerabilities and potential therapeutic targets for CTC clusters.
Main Methods
- Genome-wide DNA methylation profiling of single CTCs and CTC clusters from breast cancer patients and mouse models.
- Screening of FDA-approved compounds to identify agents affecting CTC cluster integrity.
Main Results
- CTC clusters exhibit specific hypomethylation at binding sites for stemness and proliferation-associated transcription factors (e.g., OCT4, NANOG, SOX2).
- Na+/K+ ATPase inhibitors were identified as compounds that dissociate CTC clusters into single cells.
- Dissociation of CTC clusters led to DNA methylation remodeling and suppressed metastasis.
Conclusions
- CTC clustering is linked to epigenetic alterations promoting stemness and metastasis.
- Targeting CTC clusters with specific compounds, such as Na+/K+ ATPase inhibitors, can suppress cancer metastasis.
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