Cellular Damage, Repair & Apoptosis - The Rogers Lab at Yale School of Medicine
Why It Matters
By converting amplified oncogenes into lethal triplex structures, this approach offers a novel, broadly applicable way to eliminate cancers resistant to traditional drug targets.
Key Takeaways
- •DNA damage triggers repair or apoptosis pathways in cells
- •Triplex DNA structures act as damage signals activating cell death
- •Synthetic oligonucleotides induce triplexes to target amplified oncogenes
- •Lab combines microscopy, RNA‑seq, and genomics to map repair events
- •Platform could treat 450 amplified genes across 14 cancer subtypes
Summary
The Rogers Lab at Yale explores how cells decide between DNA repair and programmed death when genomic integrity is compromised. Central to their work is the formation of triplex DNA—three‑stranded structures that the cell perceives as damage—and the use of synthetic oligonucleotides to deliberately create these structures in cancer cells.
Their research shows that triplex DNA not only flags lesions for repair proteins but also can overwhelm the repair machinery, prompting apoptosis. By integrating high‑resolution microscopy, bulk RNA sequencing, and other genomic tools, the team maps where damage occurs and which repair factors are recruited across multiple breast and ovarian cancer lines.
A striking example is their strategy to target gene amplifications, a hallmark of aggressive tumors. Over 450 genes are amplified across more than 14 cancer subtypes; the lab designs sequence‑specific oligonucleotides that bind these loci, form triplexes, and trigger cell death without relying on conventional protein‑targeted drugs.
If scalable, this platform could provide a universal genomic‑level therapy for cancers that evade existing treatments, expanding the therapeutic arsenal beyond protein inhibition to direct manipulation of DNA architecture.
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