Researchers Identified Direct DNA Transfer Between Human Cells
The mechanism reveals how damaged DNA moves between cells, potentially altering tumor resistance.
Updated on Oct. 8, 2026 in Life Sciences
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Researchers have identified a process where damaged genomic DNA travels directly between human cells through tunneling nanotube-like structures. This research-stage finding demonstrates that these transferred DNA fragments can persist within recipient cells and confer functional traits like antibiotic resistance.
Why it matters
This mechanism of genome instability transfer could fundamentally change the understanding of how tumor resistance evolves across cell populations. Identifying this pathway suggests that intercellular communication plays a greater role in disease progression than previously recognized.
Researchers tracked the transfer of damaged DNA between epithelial cells using a dual-color chromatin system labeled with H2B-GFP and H2B-mCherry. The DNA was maintained as extrachromosomal elements, effectively conferring G418 antibiotic resistance to recipient cells.
The players
Maurais and colleagues
A research team investigating mechanisms of genome instability and intercellular communication.
The details
DNA travels between human cells through specialized, thin protrusions known as tunneling nanotubes—microscopic bridges that facilitate direct communication between distant cells. By employing live-cell imaging, the study confirmed that damaged genomic material moves through these channels rather than being absorbed from the extracellular environment. Once inside the recipient cell, these DNA fragments function independently of the host genome, allowing cells to acquire new survival advantages.
Timeline
October 8, 2026: The research findings were published on nature.com.
The Tech Race
This discovery shifts the understanding of tumor plasticity away from solely internal mutations toward active, cell-to-cell genetic exchange. It follows a research trajectory focused on how intercellular communication models, such as tunneling nanotubes, drive acquired drug resistance in cancer.
This research is in the exploratory phase and does not currently impact clinical diagnostics or medical treatments. Future developments will focus on determining if specific therapies inadvertently trigger these nanotubes to facilitate tumor resistance.
The takeaway
The ability of cells to trade damaged DNA via nanotubes presents a new variable in how drug resistance develops. Readers should watch for future studies determining which clinical environments or treatments accelerate this transfer process.
Further reading
For broader context on current cellular research, explore Life Sciences.
More information
View the scientific research study article published in Nature for complete data.
Source note: This article includes information reported by Nature.
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