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Flt3l Governs the Development of Partially Overlapping Hematopoietic Lineages in Humans and Mice Publisher Pubmed



Momenilandi M1, 2 ; Levy R1, 2, 3 ; Sobrino S4, 5 ; Li J6, 7 ; Lagreslepeyrou C2, 8 ; Esmaeilzadeh H9, 10 ; Fayand A1, 2, 11 ; Le Floch C1, 2 ; Guerin A12, 13 ; Mina ED12, 13 ; Shearer D6, 7 ; Delmonte OM14 ; Yatim A15 ; Mulder K16, 17 Show All Authors
Authors
  1. Momenilandi M1, 2
  2. Levy R1, 2, 3
  3. Sobrino S4, 5
  4. Li J6, 7
  5. Lagreslepeyrou C2, 8
  6. Esmaeilzadeh H9, 10
  7. Fayand A1, 2, 11
  8. Le Floch C1, 2
  9. Guerin A12, 13
  10. Mina ED12, 13
  11. Shearer D6, 7
  12. Delmonte OM14
  13. Yatim A15
  14. Mulder K16, 17
  15. Mancini M18, 19
  16. Rinchai D15
  17. Denis A5
  18. Neehus AL1, 2
  19. Balogh K6, 7
  20. Brendle S6, 7, 20
  21. Roknizadeh H21
  22. Changiashtiani M22
  23. Seeleuthner Y1, 2
  24. Deswarte C1, 2
  25. Bessot B2, 8
  26. Cremades C1
  27. Materna M1, 2
  28. Cederholm A23
  29. Ogishi M15
  30. Philippot Q1, 2
  31. Beganovic O24
  32. Ackermann M25, 26, 27
  33. Wuyts M28
  34. Khan T29
  35. Fouere S30
  36. Herms F31
  37. Chanal J32
  38. Palterer B14
  39. Bruneau J33
  40. Molina TJ33
  41. Leclercmercier S33
  42. Pretet JL34
  43. Youssefian L35
  44. Vahidnezhad H36, 37, 38
  45. Parvaneh N39
  46. Claeys KG40, 41
  47. Schrijvers R42
  48. Luka M43
  49. Perot P44
  50. Fourgeaud J45, 46
  51. Nourrisson C47, 48
  52. Poirier P47, 48
  53. Jouanguy E1, 2, 15
  54. Boissondupuis S1, 2, 15
  55. Bustamante J1, 2, 15, 49
  56. Notarangelo LD14
  57. Christensen N6, 7
  58. Landegren N23, 50
  59. Abel L1, 2, 15
  60. Marr N29, 51
  61. Six E8
  62. Langlais D18, 19, 52
  63. Waterboer T53
  64. Ginhoux F16, 17
  65. Ma CS12, 13
  66. Tangye SG12, 13
  67. Meyts I54, 55
  68. Lachmann N25, 26, 27
  69. Hu J6, 7
  70. Shahrooei M28, 56
  71. Bossuyt X28, 57
  72. Casanova JL1, 2, 3, 15, 58
  73. Beziat V1, 2, 15

Source: Cell Published:2024


Abstract

FMS-related tyrosine kinase 3 ligand (FLT3L), encoded by FLT3LG, is a hematopoietic factor essential for the development of natural killer (NK) cells, B cells, and dendritic cells (DCs) in mice. We describe three humans homozygous for a loss-of-function FLT3LG variant with a history of various recurrent infections, including severe cutaneous warts. The patients’ bone marrow (BM) was hypoplastic, with low levels of hematopoietic progenitors, particularly myeloid and B cell precursors. Counts of B cells, monocytes, and DCs were low in the patients’ blood, whereas the other blood subsets, including NK cells, were affected only moderately, if at all. The patients had normal counts of Langerhans cells (LCs) and dermal macrophages in the skin but lacked dermal DCs. Thus, FLT3L is required for B cell and DC development in mice and humans. However, unlike its murine counterpart, human FLT3L is required for the development of monocytes but not NK cells. © 2024 The Authors
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