Tehran University of Medical Sciences

Science Communicator Platform

Stay connected! Follow us on X network (Twitter):
Share By
Human Genetic Defects in Srp19 and Srpra Cause Severe Congenital Neutropenia With Distinctive Proteome Changes Publisher Pubmed



Linder MI1 ; Mizoguchi Y1, 12 ; Hesse S1 ; Csaba G3 ; Tatematsu M1 ; Lyszkiewicz M1 ; Zietara N1 ; Jeske T1, 4 ; Hastreiter M1 ; Rohlfs M1 ; Liu Y1, 5 ; Grabowski P6 ; Ahomaa K4 ; Maierbegandt D7 Show All Authors
Authors
  1. Linder MI1
  2. Mizoguchi Y1, 12
  3. Hesse S1
  4. Csaba G3
  5. Tatematsu M1
  6. Lyszkiewicz M1
  7. Zietara N1
  8. Jeske T1, 4
  9. Hastreiter M1
  10. Rohlfs M1
  11. Liu Y1, 5
  12. Grabowski P6
  13. Ahomaa K4
  14. Maierbegandt D7
  15. Schwestka M8
  16. Pazhakh V8, 9
  17. Isiaku AI8
  18. Briones Miranda B8
  19. Blombery P9
  20. Saito MK10
  21. Rusha E2
  22. Alizadeh Z11
  23. Pourpak Z11
  24. Kobayashi M12
  25. Rezaei N13
  26. Unal E14
  27. Hauck F1
  28. Drukker M2
  29. Walzog B7
  30. Rappsilber J6
  31. Zimmer R3
  32. Lieschke GJ8
  33. Klein C1

Source: Blood Published:2023


Abstract

The mechanisms of coordinated changes in proteome composition and their relevance for the differentiation of neutrophil granulocytes are not well studied. Here, we discover 2 novel human genetic defects in signal recognition particle receptor alpha (SRPRA) and SRP19, constituents of the mammalian cotranslational targeting machinery, and characterize their roles in neutrophil granulocyte differentiation. We systematically study the proteome of neutrophil granulocytes from patients with variants in the SRP genes, HAX1, and ELANE, and identify global as well as specific proteome aberrations. Using in vitro differentiation of human induced pluripotent stem cells and in vivo zebrafish models, we study the effects of SRP deficiency on neutrophil granulocyte development. In a heterologous cell–based inducible protein expression system, we validate the effects conferred by SRP dysfunction for selected proteins that we identified in our proteome screen. Thus, SRP-dependent protein processing, intracellular trafficking, and homeostasis are critically important for the differentiation of neutrophil granulocytes. © 2023 The American Society of Hematology
3. Primary Immunodeficiencies and Cancers, Cancer Immunology: A Translational Medicine Context (2015)
Experts (# of related papers)
Other Related Docs
4. Congenital Neutropenia and Primary Immunodeficiency Diseases, Critical Reviews in Oncology/Hematology (2019)
6. Inborn Errors of Immunity and Cancers, Cancer Immunology: A Translational Medicine Context# Second Edition (2020)
10. Common Presentations and Diagnostic Approaches, Stiehm's Immune Deficiencies: Inborn Errors of Immunity (2020)