AI Insight
Researchers have identified a previously unknown function of the MYC protein, which is commonly associated with driving uncontrolled tumor growth. In addition to promoting cell proliferation, MYC appears to actively participate in DNA damage repair by localizing to sites of DNA breaks and recruiting repair machinery. This mechanism may allow cancer cells to recover from the DNA damage inflicted by chemotherapy and radiation therapy.
Why it matters
Understanding how cancer cells exploit MYC to survive treatment could open new avenues for therapeutic strategies that block this repair function, potentially improving the efficacy of existing chemotherapy and radiation protocols.
Scientists have uncovered a surprising new trick used by one of cancer’s most notorious proteins. MYC, already infamous for fueling runaway tumor growth, also appears to help cancer cells survive by repairing their damaged DNA — including damage caused by chemotherapy and radiation. Researchers found that MYC can rush directly to broken DNA and recruit repair machinery, effectively helping tumors recover from treatments meant to destroy them.
Source: Scientists discover why some cancers survive chemotherapy