1165-Centromeric DNA in ALT Cancer Telomeres

Paper Talk · Jun 21, 2026 · 22m

The research investigates a unique genetic phenomenon in Alternative Lengthening of Telomeres (ALT) cancers, where centromeric DNA sequences are abnormally incorporated into telomeric regions. This structural rearrangement, observed in both laboratory cell lines and pediatric neuroblastoma tumors, appears to be triggered by the loss of the ATRX protein and significant DNA hypomethylation. By utilizing advanced long-read sequencing and imaging techniques, the authors identified specific CENP-A chromatin footprints that reside at these modified telomeres. These centromeric signatures are not…