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Inherited Arpc5 Mutations Cause an Actinopathy Impairing Cell Motility and Disrupting Cytokine Signaling Publisher Pubmed



Nunessantos CJ1 ; Kuehn HS1 ; Boast B1 ; Hwang SJ1 ; Kuhns DB2 ; Stoddard J1 ; Niemela JE1 ; Fink DL2 ; Pittaluga S3 ; Abuasab M4 ; Davies JS5 ; Barr VA6 ; Kawai T7 ; Delmonte OM7 Show All Authors
Authors
  1. Nunessantos CJ1
  2. Kuehn HS1
  3. Boast B1
  4. Hwang SJ1
  5. Kuhns DB2
  6. Stoddard J1
  7. Niemela JE1
  8. Fink DL2
  9. Pittaluga S3
  10. Abuasab M4
  11. Davies JS5
  12. Barr VA6
  13. Kawai T7
  14. Delmonte OM7
  15. Bosticardo M7
  16. Garofalo M8
  17. Carneirosampaio M9
  18. Somech R10, 11, 12
  19. Gharagozlou M13
  20. Parvaneh N13
  21. Samelson LE6
  22. Fleisher TA1
  23. Puel A14, 15, 16
  24. Notarangelo LD7
  25. Boisson B14, 15, 16
  26. Casanova JL14, 15, 16, 17, 18
  27. Derfalvi B19
  28. Rosenzweig SD1
Show Affiliations
Authors Affiliations
  1. 1. Immunology Service, Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, MD, United States
  2. 2. Neutrophil Monitoring Laboratory, Applied/Developmental Research Directorate, Frederick National Laboratory for Cancer Research, Frederick, MD, United States
  3. 3. Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
  4. 4. Electron Microscopy Laboratory, Biological Imaging Core, National Eye Institute, National Institutes of Health, Bethesda, MD, United States
  5. 5. Predictive Toxicology Department of Safety Assessment, Genentech, South San Francisco, CA, United States
  6. 6. Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
  7. 7. Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
  8. 8. Laboratory of Host Defenses, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
  9. 9. Children’s Hospital, Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo (HC-FMUSP), Sao Paulo, Brazil
  10. 10. Pediatric Department A and Immunology Service, Edmond and Lily Safra Children’s Hospital, Tel Hashomer, Israel
  11. 11. The Jeffrey Modell Foundation Israeli Network for Primary Immunodeficiency, New York, NY, United States
  12. 12. Sheba Medical Center, Affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
  13. 13. Division of Allergy and Clinical Immunology, Department of Pediatrics, Children’s Medical Centre, University of Medical Sciences, Tehran, Iran
  14. 14. St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, United States
  15. 15. Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
  16. 16. Universite Paris Cite, Imagine Institute, Paris, France
  17. 17. Department of Pediatrics, Necker Hospital for Sick Children, AP-HP, Paris, France
  18. 18. Howard Hughes Medical Institute, New York, NY, United States
  19. 19. Department of Pediatrics, Division of Immunology, Dalhousie University and IWK Health Center, Halifax, NS, Canada

Source: Nature Communications Published:2023


Abstract

We describe the first cases of germline biallelic null mutations in ARPC5, part of the Arp2/3 actin nucleator complex, in two unrelated patients presenting with recurrent and severe infections, early-onset autoimmunity, inflammation, and dysmorphisms. This defect compromises multiple cell lineages and functions, and when protein expression is reestablished in-vitro, the Arp2/3 complex conformation and functions are rescued. As part of the pathophysiological evaluation, we also show that interleukin (IL)−6 signaling is distinctively impacted in this syndrome. Disruption of IL-6 classical but not trans-signaling highlights their differential roles in the disease and offers perspectives for therapeutic molecular targets. © 2023, This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply.
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