Research uncovers cancer cell survival tactic

A recent study has shown that some forms of aggressive cancers, such as neuroblastoma tumors in children, challenge the traditional sequence of chromosome ends by inserting telomeric DNA sequences into the centromeres, an act previously considered impossible. This phenomenon, known as Alternative Lengthening of Telomeres (ALT), allows cancer cells to extend their telomeres and survive after they shorten, thereby contributing to their progression. The researchers found that this structural change enables tumors to bypass the cellular senescence mechanism, making treatment more difficult and increasing genomic stability. Additionally, this discovery offers a new method for diagnosing these types of cancer.

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