RNA processing: A new player of genomic instability in multiple myeloma

Genomic instability, a hallmark of almost all cancers, originates from the combined effects of a deregulated DNA damage response, DNA repair defects, and a failure of cell-cycle checkpoints before the damaged DNA is propagated to daughter cells [1]. Alterations in this network of genomic integrity-preserving pathways lead to the accumulation of mutations, aneuploidy, and chromosomal alterations, the main causes of cancer. Multiple myeloma (MM) is a clonal malignancy of terminally differentiated plasma cells that reside and expand in the bone marrow. MM cells are characterized by a high aneuploidy incidence and recurrent structural chromosomal alterations, features that reflect these cells' underlying genomic instability [2]