Gain-of-function variants in SYK cause immune dysregulation and systemic inflammation in humans and mice
- Nat Genet. 2021 Apr;53(4):500-510. doi: 10.1038/s41588-021-00803-4.
- 1. Department of Gastroenterology, Pediatric Inflammatory Bowel Disease Research Center, Children's Hospital of Fudan University, Shanghai, China.
- 2. SickKids Inflammatory Bowel Disease Center, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada.
- 3. Translational Gastroenterology Unit and Biomedical Research Centre, Nuffield Department of Clinical Medicine, Experimental Medicine Division, University of Oxford, Oxford, UK.
- 4. Department of Pediatrics, John Radcliffe Hospital, Oxford, UK.
- 5. Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China.
- 6. Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases, Vienna, Austria.
- 7. CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria.
- 8. St. Anna Children's Cancer Research Institute (CCRI), Vienna, Austria.
- 9. Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada.
- 10. Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences, East China Normal University, Shanghai, China.
- 11. School of Life Sciences, East China Normal University, Shanghai, China.
- 12. Center for Gut Microbiota Research, The Chinese University of Hong Kong, Hong Kong, China.
- 13. Institute of Digestive Disease, Li Ka Shing Institute of Health Science, The Chinese University of Hong Kong, Hong Kong, China.
- 14. Felsenstein Medical Research Center, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
- 15. Division of Gastroenterology, Rabin Medical Center, Petah Tikva, Israel.
- 16. Division of Rheumatology, Department of Pediatrics, Hospital for Sick Children, Toronto, Ontario, Canada.
- 17. Department of Gastroenterology, Zhengzhou Children's Hospital, Zhengzhou, China.
- 18. Neonate Department, Sanmenxia Central Hospital, Sanmenxia, China.
- 19. Department of Pediatrics, Lushi County Renmin Hospital, Sanmenxia, China.
- 20. Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK.
- 21. Department of Rheumatology and Clinical Immunology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
- 22. Center for Chronic Immunodeficiency (CCI), Medical Center, University of Freiburg, Freiburg, Germany.
- 23. Department of Clinical Pathology, Medical University Vienna, Vienna, Austria.
- 24. National Institute of Hematology and Infectious Diseases, Department for Pediatric Hematology and Hemopoietic Stem Cell Transplantation, Central Hospital of Southern Pest, Budapest, Hungary.
- 25. Division of Haematology/Oncology, Department of Pediatrics, Hospital for Sick Children, Toronto, Ontario, Canada.
- 26. Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada.
- 27. Division of Nephrology, Department of Pediatrics, Hospital for Sick Children, Toronto, Ontario, Canada.
- 28. Division of Pathology, Department of Pediatric Laboratory Medicine, University of Toronto, Toronto, Ontario, Canada.
- 29. Department of Medicine, Farncombe Family Digestion Health Institute, McMaster University, Hamilton, Ontario, Canada.
- 30. Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, Ludwig Maximilian University Munich, Munich, Germany.
- 31. Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK.
- 32. Princess Margaret Cancer Centre, University Health Network, Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.
- 33. Department of Immunology, University of Toronto, Toronto, Ontario, Canada.
- 34. Division of Rheumatology, St. Michael's Hospital, Toronto, Ontario, Canada.
- 35. Division of Immunology and Rheumatology, Department of Pediatrics, Sainte-Justine University Hospital, Montreal, Quebec, Canada.
- 36. Cytokine and Adaptive Immunity Laboratory, Sainte-Justine University Hospital Research Center, Université de Montréal, Montreal, Quebec, Canada.
- 37. Department of Medicine, University of Toronto, Toronto, Ontario, Canada.
- 38. Institute for Immunodeficiency, Center for Chronic Immunodeficiency (CCI), Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany.
- 39. Faculty of Medical Sciences, 100KGP England, Newcastle University, Newcastle upon Tyne, UK.
- 40. Department of Immunology, Royal Victoria Infirmary, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK.
- 41. DZIF - German Center for Infection Research, Satellite Center Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany.
- 42. CIBSS - Centre for Integrative Biological Signalling Studies, Albert-Ludwigs-University of Freiburg, Freiburg, Germany.
- 43. RESIST - Cluster of Excellence 2155 to Hanover Medical School, Satellite Center Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany.
- 44. Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
- 45. Division of Gastroenterology, Hepatology and Nutrition, Boston Children's Hospital, Boston, MA, USA.
- 46. Harvard Medical School, Boston, MA, USA.
- 47. Division of Gastroenterology, Brigham and Women's Hospital, Boston, MA, USA.
- 48. St. Anna Children's Hospital, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Vienna, Austria.
- 49. Department of Gastroenterology, Pediatric Inflammatory Bowel Disease Research Center, Children's Hospital of Fudan University, Shanghai, China. [email protected].
- 50. Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China. [email protected].
- 51. SickKids Inflammatory Bowel Disease Center, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada. [email protected].
- 52. Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada. [email protected].
- 53. Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada. [email protected].
- 54. Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada. [email protected].
- 55. Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada. [email protected].
- # Contributed equally.
Spleen tyrosine kinase (Syk) is a critical immune signaling molecule and therapeutic target. We identified damaging monoallelic Syk variants in six patients with immune deficiency, multi-organ inflammatory disease such as colitis, arthritis and dermatitis, and diffuse large B cell lymphomas. The Syk variants increased phosphorylation and enhanced downstream signaling, indicating gain of function. A knock-in (SYK-Ser544Tyr) mouse model of a patient variant (p.Ser550Tyr) recapitulated aspects of the human disease that could be partially treated with a Syk Inhibitor or transplantation of bone marrow from wild-type mice. Our studies demonstrate that Syk gain-of-function variants result in a potentially treatable form of inflammatory disease.