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Neutropenia, severe congenital, 9, autosomal dominant(SCN9)

MedGen UID:
1802793
Concept ID:
C5676954
Disease or Syndrome
Synonyms: NEUTROPENIA, SEVERE CONGENITAL, 9, AUTOSOMAL DOMINANT; SCN9
 
Gene (location): CLPB (11q13.4)
 
Monarch Initiative: MONDO:0030726
OMIM®: 619813

Definition

Autosomal dominant severe congenital neutropenia-9 (SCN9) is characterized by onset of neutropenia in the first years of life. Most patients have recurrent infections; bone marrow examination shows a myeloid maturation arrest. Rare patients may exhibit additional features such as seizures, learning difficulties, or cataracts, which are more commonly observed in patients with MGCA7 (616271). However, patients with SCN9 do not have 3-methylglutaconic aciduria, and most have normal neurologic function (Warren et al., 2022). For a discussion of genetic heterogeneity of severe congenital neutropenia, see SCN1 (202700). [from OMIM]

Clinical features

From HPO
3-Methylglutaconic aciduria
MedGen UID:
777186
Concept ID:
C3696376
Disease or Syndrome
An increased amount of 3-methylglutaconic acid in the urine.
Seizure
MedGen UID:
20693
Concept ID:
C0036572
Sign or Symptom
A seizure is an intermittent abnormality of nervous system physiology characterized by a transient occurrence of signs and/or symptoms due to abnormal excessive or synchronous neuronal activity in the brain.
Global developmental delay
MedGen UID:
107838
Concept ID:
C0557874
Finding
A delay in the achievement of motor or mental milestones in the domains of development of a child, including motor skills, speech and language, cognitive skills, and social and emotional skills. This term should only be used to describe children younger than five years of age.
Myeloid maturation arrest
MedGen UID:
1784075
Concept ID:
C0151787
Cell or Molecular Dysfunction
Chornic neutropenia arising from an impaired proliferation and maturation of myeloid progenitor cells in the bone marrow.
Splenomegaly
MedGen UID:
52469
Concept ID:
C0038002
Finding
Abnormal increased size of the spleen.
Cataract
MedGen UID:
39462
Concept ID:
C0086543
Disease or Syndrome
A cataract is an opacity or clouding that develops in the crystalline lens of the eye or in its capsule.

Recent clinical studies

Etiology

Dobrewa W, Bielska M, Bąbol-Pokora K, Janczar S, Młynarski W
Mutat Res Rev Mutat Res 2024 Jan-Jun;793:108476. Epub 2023 Nov 19 doi: 10.1016/j.mrrev.2023.108476. PMID: 37989463
Dale DC, Welte K
Cancer Treat Res 2011;157:97-108. doi: 10.1007/978-1-4419-7073-2_6. PMID: 21052952
Welte K, Zeidler C
Hematol Oncol Clin North Am 2009 Apr;23(2):307-20. doi: 10.1016/j.hoc.2009.01.013. PMID: 19327585
Welte K, Zeidler C, Dale DC
Semin Hematol 2006 Jul;43(3):189-95. doi: 10.1053/j.seminhematol.2006.04.004. PMID: 16822461
Zeidler C, Schwinzer B, Welte K
Rev Clin Exp Hematol 2003 Mar;7(1):72-83. PMID: 14692235

Diagnosis

Dale DC, Dick E, Kelley M, Makaryan V, Connelly J, Bolyard AA
Curr Opin Hematol 2020 Jan;27(1):11-17. doi: 10.1097/MOH.0000000000000554. PMID: 31652152Free PMC Article
Dale DC, Welte K
Cancer Treat Res 2011;157:97-108. doi: 10.1007/978-1-4419-7073-2_6. PMID: 21052952
Welte K, Zeidler C
Hematol Oncol Clin North Am 2009 Apr;23(2):307-20. doi: 10.1016/j.hoc.2009.01.013. PMID: 19327585
Zeidler C, Schwinzer B, Welte K
Rev Clin Exp Hematol 2003 Mar;7(1):72-83. PMID: 14692235

Therapy

Zeidler C, Germeshausen M, Klein C, Welte K
Br J Haematol 2009 Feb;144(4):459-67. Epub 2008 Dec 10 doi: 10.1111/j.1365-2141.2008.07425.x. PMID: 19120359
Welte K, Zeidler C, Dale DC
Semin Hematol 2006 Jul;43(3):189-95. doi: 10.1053/j.seminhematol.2006.04.004. PMID: 16822461
Zeidler C, Schwinzer B, Welte K
Rev Clin Exp Hematol 2003 Mar;7(1):72-83. PMID: 14692235
Zeidler C, Welte K
Semin Hematol 2002 Apr;39(2):82-8. doi: 10.1053/shem.2002.31913. PMID: 11957189
Briars GL, Parry HF, Ansari BM
J Infect 1996 Sep;33(2):123-6. doi: 10.1016/s0163-4453(96)93081-9. PMID: 8890001

Prognosis

Dobrewa W, Bielska M, Bąbol-Pokora K, Janczar S, Młynarski W
Mutat Res Rev Mutat Res 2024 Jan-Jun;793:108476. Epub 2023 Nov 19 doi: 10.1016/j.mrrev.2023.108476. PMID: 37989463
Welte K, Zeidler C, Dale DC
Semin Hematol 2006 Jul;43(3):189-95. doi: 10.1053/j.seminhematol.2006.04.004. PMID: 16822461
Zeidler C, Schwinzer B, Welte K
Rev Clin Exp Hematol 2003 Mar;7(1):72-83. PMID: 14692235
Zeidler C, Welte K
Semin Hematol 2002 Apr;39(2):82-8. doi: 10.1053/shem.2002.31913. PMID: 11957189

Clinical prediction guides

Dobrewa W, Bielska M, Bąbol-Pokora K, Janczar S, Młynarski W
Mutat Res Rev Mutat Res 2024 Jan-Jun;793:108476. Epub 2023 Nov 19 doi: 10.1016/j.mrrev.2023.108476. PMID: 37989463
Dale DC, Dick E, Kelley M, Makaryan V, Connelly J, Bolyard AA
Curr Opin Hematol 2020 Jan;27(1):11-17. doi: 10.1097/MOH.0000000000000554. PMID: 31652152Free PMC Article
Zeidler C, Germeshausen M, Klein C, Welte K
Br J Haematol 2009 Feb;144(4):459-67. Epub 2008 Dec 10 doi: 10.1111/j.1365-2141.2008.07425.x. PMID: 19120359

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