Researchers Identify DNA Polymerase Theta’s Role in Cancer Cell Survival During DNA Damage

Researchers at Scripps Research have identified a previously unrecognized mechanism that cancer cells use to endure DNA damage during replication. The study highlights the role of the enzyme DNA polymerase theta (Polθ), which facilitates an alternative repair pathway, allowing cancer cells to survive and proliferate despite extensive genetic damage. Polθ, already under investigation as a target for cancer treatments, has now been found to play a more significant role in cellular repair processes than previously understood.

The findings shed light on how Polθ operates within this alternative repair pathway, enabling cancer cells to bypass conventional mechanisms that would typically halt cell division due to DNA damage. This discovery provides new insights into the resilience of cancer cells and their ability to thrive under conditions that would normally be detrimental to healthy cells. Researchers suggest that understanding this mechanism could inform future therapeutic strategies aimed at targeting Polθ and disrupting its role in supporting cancer cell survival.

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Date: April 7, 2026

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GOAI