Severe congenital neutropenia (SCN) Nonimmune chronic idiopathic neutropenia of adults (NI-CINA)
Description
Neutropenias represents a series of potentially life-threatening disorders characterised by a reduction in circulating neutrophils. Since neutrophils play a major role in host defense against bacteria, neutropenia patients suffer from frequent episodes of opportunistic bacterial infections. Severe congenital neutropenia (SCN) is a rare neutropenia with a bone marrow maturation arrest of granulocytic differentiation. Kostmann syndrome is an autosomal recessive SCN. The characteristic maturation arrest and the lack of mature neutrophils in peripheral blood of patients with Kostmann syndrome can be explained by the deletion of an anti-apoptotic factor (HAX-1) in myeloid cells of these patients. Heterozygous mutations in the protooncogene growth factor-independent 1 (GFI1) gene are also associated with SCN. In patients with autosomal dominant cyclic neutropenia (CyN), a condition with oscillating neutrophil counts but less severe clinical symptoms, heterozygous mutations in ELA-2/ELANE were discovered. Patients with X-linked severe congenital neutropenia (SCN) have been reported with activating mutations in Wiskott-Aldrich syndrome protein (WASp) leading to a constitutively-active form of the protein, and unregulated actin polymerization.
Category
Primary immunodeficiency
Brite
Human diseases in ICD-11 classification [BR:br08403]
04 Diseases of the immune system
Immune system disorders involving white cell lineages
4B00 Disorders of neutrophil number
H00100 Neutropenic disorders
Pathway-based classification of diseases [BR:br08402]
Signal transduction
nt06518 JAK-STAT signaling
H00100 Neutropenic disorders
Vilboux T, Lev A, Malicdan MC, Simon AJ, Jarvinen P, Racek T, Puchalka J, Sood R, Carrington B, Bishop K, Mullikin J, Huizing M, Garty BZ, Eyal E, Wolach B, Gavrieli R, Toren A, Soudack M, Atawneh OM, Babushkin T, Schiby G, Cullinane A, Avivi C, Polak-Charcon S, Barshack I, Amariglio N, Rechavi G, van der Werff ten Bosch J, Anikster Y, Klein C, Gahl WA, Somech R
Title
A congenital neutrophil defect syndrome associated with mutations in VPS45.
Carapito R, Konantz M, Paillard C, Miao Z, Pichot A, Leduc MS, Yang Y, Bergstrom KL, Mahoney DH, Shardy DL, Alsaleh G, Naegely L, Kolmer A, Paul N, Hanauer A, Rolli V, Muller JS, Alghisi E, Sauteur L, Macquin C, Morlon A, Sancho CS, Amati-Bonneau P, Procaccio V, Mosca-Boidron AL, Marle N, Osmani N, Lefebvre O, Goetz JG, Unal S, Akarsu NA, Radosavljevic M, Chenard MP, Rialland F, Grain A, Bene MC, Eveillard M, Vincent M, Guy J, Faivre L, Thauvin-Robinet C, Thevenon J, Myers K, Fleming MD, Shimamura A, Bottollier-Lemallaz E, Westhof E, Lengerke C, Isidor B, Bahram S
Title
Mutations in signal recognition particle SRP54 cause syndromic neutropenia with Shwachman-Diamond-like features.
Van Nieuwenhove E, Barber JS, Neumann J, Smeets E, Willemsen M, Pasciuto E, Prezzemolo T, Lagou V, Seldeslachts L, Malengier-Devlies B, Metzemaekers M, Hassdenteufel S, Kerstens A, van der Kant R, Rousseau F, Schymkowitz J, Di Marino D, Lang S, Zimmermann R, Schlenner S, Munck S, Proost P, Matthys P, Devalck C, Boeckx N, Claessens F, Wouters C, Humblet-Baron S, Meyts I, Liston A
Title
Defective Sec61alpha1 underlies a novel cause of autosomal dominant severe congenital neutropenia.
