Mechanisms linking DNA damage to inflammation and mutagenesis Dr Martin Reijns Senior Lecturer Contact details Email: martin.reijns@ed.ac.uk Research in a NutshellDNA damage not only threatens genome stability and cell survival, but can also lead to inflammation and mutagenesis. This is relevant to autoinflammatory diseases, ageing and cancer. It is therefore important to understand the consequences of how different cells respond to different types of DNA damage. Our aim is to determine the mechanisms by which damage leads to specific types of mutations or causes activation of the innate immune system (inflammation).Deoxyribonucleotides are the canonical building blocks of DNA, but ribonucleotides (the building blocks of RNA) can be incorporated by the enzymes that perform DNA synthesis. A key area of interest is how, when and where ribonucleotides are incorporated into DNA; how, when and where they are removed (or not); and how this affects the genome and the cell. Absence of RNase H2, an enzyme essential for initiating their removal through Ribonucleotide Excision Repair (RER), causes DNA damage, inflammatory signalling and an increase in small deletions characteristic of the cancer mutational signature ID4.We use molecular biology, biochemistry, NGS and bioinformatics applied to budding yeast, mammalian cells and transgenic mouse models to investigate the interplay between DNA damage, repair, mutagenesis and inflammation, with a focus on genome-embedded ribonucleotides. People NameRole Martin ReijnsSenior Lecturer and Principal InvestigatorZicheng Yu (YC)PhD Student (with Professor Martin Taylor and Andrew Jackson)Maarten van den AnckerPhD Student (with Andrew Jackson) Key Publications Signatures of TOP1 transcription-associated mutagenesis in cancer and germline. Reijns MAM, Parry DA, Williams TC, Nadeu F, Hindshaw RL, Rios Szwed DO, Nicholson MD, Carroll P, Boyle S, Royo R, Cornish AJ, Xiang H, Ridout K, Schuh A, Aden K, Palles C, Campo E, Stankovic T, Taylor MS, Jackson AP. Nature. 2022; 1–9. doi:10.1038/s41586-022-04403-yCRISPR screens identify genomic ribonucleotides as a source of PARP-trapping lesions. Zimmermann M, Murina O, Reijns MAM, Agathanggelou A, Challis R, Tarnauskaitė Ž, Muir M, Fluteau A, Aregger M, McEwan A, Yuan W, Clarke M, Lambros MB, Paneesha S, Moss P, Chandrashekhar M, Angers S, Moffat J, Brunton VG, Hart T, de Bono J, Stankovic T, Jackson AP, Durocher D. Nature. 2018;559(7713):285-289. doi:10.1038/s41586-018-0291-zcGAS surveillance of micronuclei links genome instability to innate immunity. Mackenzie KJ, Carroll P, Martin CA, Murina O, Fluteau A, Simpson DJ, Olova N, Sutcliffe H, Rainger JK, Leitch A, Osborn RT, Wheeler AP, Nowotny M, Gilbert N, Chandra T, Reijns MAM, Jackson AP. Nature. 2017; 548(7668):461-465. doi:10.1038/nature23449Lagging-strand replication shapes the mutational landscape of the genome. Reijns MAM, Kemp H, Ding J, de Procé SM, Jackson AP, Taylor MS. Nature. 2015; 518: 502–506. doi:10.1038/nature14183Enzymatic removal of ribonucleotides from DNA is essential for mammalian genome integrity and development. Reijns MAM, Rabe B, Rigby RE, Mill P, Astell KR, Lettice LA, Boyle S, Leitch A, Keighren M, Kilanowski F, Devenney PS, Sexton D, Grimes G, Holt IJ, Hill RE, Taylor MS, Lawson KA, Dorin JR, Jackson AP. Cell. 2012; 149(5):1008-22. doi:10.1016/j.cell.2012.04.011 Full publication list can be found on Research Explorer: Martin Reijns - Research output - University of Edinburgh Research Explorer Collaborations Professor Martin Taylor, MRC HGU, University of EdinburghProfessor Yanick Crow, MRC HGU, University of EdinburghDr Carolina Uggenti, MRC HGU, University of EdinburghProfessor Min Ae Lee-Kirsch, Dresden University, GermanyProfessor Grant Stewart, University of BirminghamProfessor Nick Gilbert, MRC HGU, University of EdinburghProfessor Ian Holt, Biodonostia Health Research Institute, SpainProfessor Antonella Spinazzola, University College LondonDr Konrad Aden, Kiel University, GermanyProfessor Dan Durocher, University of Toronto, CanadaProfessor Tatjana Stankovic, University of BirminghamDr Roger Woodgate, NIHCD, USAProfessor Anna Kajaste-Rudnitski, University of Pavia, ItalyProfessor Eva Petermann, University of BirminghamDr Erik Debler, Thomas Jefferson University, USADr Aline Marnef, CBI, Toulouse, FranceDr Nic Robertson, IGC, University of EdinburghDr Rebekah Tillotson, IGC, University of EdinburghDr Anke Roelofs, IGC, University of EdinburghProfessor Cosimo De Bari, IGC, University of EdinburghMs Manisha Ahuja, Newcastle UniversityProfessor Sophie Hambleton, Newcastle UniversityDr Tom Deegan, MRC HGU, University of EdinburghDr Luke Boulter, IGC, University of EdinburghDr Sylvie Noordermeer, Leiden University, The Netherlands Partners and Funders Medical Research Council Scientific Themes Population genomics, ME/CFS genetics, molecular mechanisms in complex disease Disease Areas Aicardi-Goutières Syndrome, auto-inflammation, cancer Technology Expertise Molecular biology and genetics, budding yeast, protein and nucleic acid biochemistry, cell biology, genome editing, transgenic mouse models This article was published on 2026-01-08