cGAS-mediated induction of type I interferon due to inborn errors of histone pre-mRNA processing
- Nat Genet. 2020 Dec;52(12):1364-1372. doi: 10.1038/s41588-020-00737-3.
- 1. Centre for Genomic and Experimental Medicine, Medical Research Council Institute of Genetics and Molecular Medicine, The University of Edinburgh, Edinburgh, UK.
- 2. University of Paris, Imagine Institute, Laboratory of Neurogenetics and Neuroinflammation, Paris, France.
- 3. Division of Evolution and Genomic Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK.
- 4. Medical Research Council Human Genetics Unit, Medical Research Council Institute of Genetics and Molecular Medicine, The University of Edinburgh, Edinburgh, UK.
- 5. Centre for Genomics and Oncological Research (GENyO), Pfizer-University of Granada-Andalusian Regional Government, Parque Tecnico de la Ciencia de Salud, Granada, Spain.
- 6. Cancer Research UK Edinburgh Centre, Medical Research Council Institute of Genetics and Molecular Medicine, The University of Edinburgh, Edinburgh, UK.
- 7. Medical Research Council Human Immunology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK.
- 8. Université Paris-Saclay, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Centre National de Recherche en Génomique Humaine, Évry, France.
- 9. University College London Great Ormond Street Institute of Child Health, London, UK.
- 10. Service de Médecine Interne Néphrologie Pédiatrique, Hôpital des Enfants, Toulouse, France.
- 11. Department of Paediatric Nephrology, University of Cape Town, Red Cross War Memorial Children's Hospital, Cape Town, South Africa.
- 12. Child Neurology and Psychiatry Unit, Istituto di Ricovero e Cura a Carattere Scientifico, Mondino Foundation, Pavia, Italy.
- 13. Genomic and Post-Genomic Center, Istituto di Ricovero e Cura a Carattere Scientifico, Mondino Foundation, Pavia, Italy.
- 14. Department of Paediatric Neurology, University Hospitals Leuven, Leuven, Belgium.
- 15. Yorkshire Clinical Genetics Service, Chapel Allerton Hospital, Leeds, UK.
- 16. Sorbonne Université, Assistance Publique-Hôpitaux de Paris, Département de Neuropédiatrie, Centre de Référence de Neurogénétique et Mouvements Anormaux de l'Enfant, Hôpital Armand Trousseau, Paris, France.
- 17. South West Thames Regional Genetics Service, St George's, University of London, London, UK.
- 18. Department of Paediatric Neurology, Children's Hospital Datteln, Witten/Herdecke University, Datteln, Germany.
- 19. Department of Paediatric Neurology, Alder Hey Children's National Health Service Foundation Trust, Liverpool, UK.
- 20. Department of Paediatrics, Gloucestershire Royal Hospital, Gloucester, UK.
- 21. Department of Paediatric Neurology, Leeds Teaching Hospitals National Health Service Trust, Leeds, UK.
- 22. Department of Paediatric Neurology, Bristol Children's Hospital, Bristol, UK.
- 23. Faculdade de Medicina - Centro Universitário Estácio de Ribeirão Preto, Ribeirão Preto, Brazil.
- 24. Department of Brain and Behavioural Sciences, University of Pavia, Pavia, Italy.
- 25. Centre de Référence des Déficiences Intellectuelles de Causes Rares et Polyhandicap, Centre Hospitalier Régional Universitaire de Brest, Brest, France.
- 26. Department of Paediatrics, Royal Surrey County Hospital, Guildford, UK.
- 27. University of Cape Town, Red Cross War Memorial Children's Hospital, Cape Town, South Africa.
- 28. Center for diagnosis and treatment of Leukodystrophies, Pediatric Neurology Unit, V. Buzzi Children's Hospital, Milano, Italy.
- 29. Reference Center for Inborn Errors of Metabolism-Department of Pediatrics, Hôpital des Enfants-Centre Hospitalier Universitaire de Toulouse, Toulouse, France.
- 30. Department of Paediatric Neurology, Neurological Institute of Goiânia, Goiânia, Brazil.
- 31. Center for Human Genetics, University Hospitals Leuven, Katholieke Universiteit Leuven, Leuven, Belgium.
- 32. Department of Paediatrics, Centre Hospitalier de Dunkerque, Dunkerque, France.
- 33. Centre for Genomic and Experimental Medicine, Medical Research Council Institute of Genetics and Molecular Medicine, The University of Edinburgh, Edinburgh, UK. [email protected].
- 34. University of Paris, Imagine Institute, Laboratory of Neurogenetics and Neuroinflammation, Paris, France. [email protected].
- # Contributed equally.
Inappropriate stimulation or defective negative regulation of the type I interferon response can lead to autoinflammation. In genetically uncharacterized cases of the type I interferonopathy Aicardi-Goutières syndrome, we identified biallelic mutations in LSM11 and RNU7-1, which encode components of the replication-dependent histone pre-mRNA-processing complex. Mutations were associated with the misprocessing of canonical histone transcripts and a disturbance of linker histone stoichiometry. Additionally, we observed an altered distribution of nuclear cyclic guanosine monophosphate-adenosine monophosphate synthase (cGAS) and enhanced interferon signaling mediated by the cGAS-stimulator of interferon genes (STING) pathway in patient-derived fibroblasts. Finally, we established that chromatin without linker histone stimulates cyclic guanosine monophosphate-adenosine monophosphate (cGAMP) production in vitro more efficiently. We conclude that nuclear histones, as key constituents of chromatin, are essential in suppressing the immunogenicity of self-DNA.