RT Journal Article T1 Transcription-mediated replication hindrance: a major driver of genome instability. A1 Gómez-González, Belén A1 Aguilera, Andrés K1 DNA–RNA hybrids K1 chromosome fragility K1 genetic instability K1 replication fork stalling K1 transcription AB Genome replication involves dealing with obstacles that can result from DNA damage but also from chromatin alterations, topological stress, tightly bound proteins or non-B DNA structures such as R loops. Experimental evidence reveals that an engaged transcription machinery at the DNA can either enhance such obstacles or be an obstacle itself. Thus, transcription can become a potentially hazardous process promoting localized replication fork hindrance and stress, which would ultimately cause genome instability, a hallmark of cancer cells. Understanding the causes behind transcription-replication conflicts as well as how the cell resolves them to sustain genome integrity is the aim of this review. YR 2019 FD 2019-05-23 LK http://hdl.handle.net/10668/14011 UL http://hdl.handle.net/10668/14011 LA en DS RISalud RD Apr 10, 2025