" /> Neutropenia, severe congenital, 3, autosomal recessive - CISMeF





Preferred Label : Neutropenia, severe congenital, 3, autosomal recessive;

Symbol : SCN3;

CISMeF acronym : SCN3;

Type : Phenotype, molecular basis known;

Alternative titles and symbols : Kostmann disease; Agranulocytosis, infantile;

Description : Severe congenital neutropenia-3 is an autosomal recessive bone marrow failure disorder characterized by low numbers of neutrophils, increased susceptibility to bacterial and fungal infections, and increased risk of developing myelodysplastic syndrome or acute myeloid leukemia. In addition, patients with HAX1 mutations affecting both isoform A and B of the gene develop neurologic abnormalities (summary by Boztug et al., 2010). The Swedish physician Rolf Kostmann (1956) described an autosomal recessive hematologic disorder, termed infantile agranulocytosis, with severe neutropenia with an absolute neutrophil count below 0.5 x 10(9)/l and early onset of severe bacterial infections. The disorder was later termed Kostmann syndrome (Skokowa et al., 2007). Lekstrom-Himes and Gallin (2000) discussed severe congenital neutropenia in a review of immunodeficiencies caused by defects in phagocytes. In addition to Kostmann agranulocytosis, recessively inherited neutropenic syndromes include congenital neutropenia with eosinophilia (257100), Chediak-Higashi syndrome (214500), and Fanconi pancytopenic syndrome (see 227650). For a phenotypic description and a discussion of genetic heterogeneity of severe congenital neutropenia, see SCN1 (202700).;

Inheritance : Autosomal recessive;

Molecular basis : Caused by mutation in the HCLS1-associated protein X1 (HAX1, 605998.0001).;

Neoplasia : Increased risk of myelodysplastic syndromes; Increased risk of leukemia;

Prefixed ID : #610738;

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18/05/2024


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