This new review article highlights the pivotal and paradoxical role of R-loops in maintaining genomic stability while simultaneously posing risks to it. These three-stranded nucleic acid structures, composed of an RNA:DNA hybrid and a displaced DNA strand, are now recognized not merely as byproducts of transcription but as essential regulatory elements in gene expression, DNA replication, and repair mechanisms.

A recent review published in Genes & Diseases sheds light on the complex and multifaceted role of RNA-binding proteins (RBPs) in cancer progression, with a particular focus on the fragile X mental retardation protein (FMRP). Traditionally recognized for its critical functions in neural development, FMRP is now emerging as a key regulator in cancer biology, influencing tumor growth, metastasis, and therapy resistance. This growing body of knowledge presents a shift in understanding how RNA metabolism can drive oncogenic processes and potentially offer novel diagnostic and therapeutic strategies.

A deeper understanding of osteosarcoma, the most common primary malignant bone tumor affecting children and adolescents, is reshaping strategies for overcoming treatment resistance.