期刊
FRONTIERS IN IMMUNOLOGY
卷 14, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fimmu.2023.1194262
关键词
ELANE gene mutation; severe neutropenia; novel mutation; cyclic neutropenia (CyN); Mexican; c.416C>G; c.607G>C; case report
类别
The most common causes of congenital neutropenia are mutations in the ELANE gene. This study reports two pathogenic mutations in ELANE found in Mexican families, and highlights the positive response to granulocyte colony-stimulating factor treatment in patients with these mutations.
The most common causes of congenital neutropenia are mutations in the ELANE (Elastase, Neutrophil Expressed) gene (19p13.3), mostly in exon 5 and the distal portion of exon 4, which result in different clinical phenotypes of neutropenia. Here, we report two pathogenic mutations in ELANE, namely, c.607G>C (p.Gly203Arg) and a novel variant c.416C>G (p.Pro139Arg), found in two Mexican families ascertained via patients with congenital neutropenia who responded positively to the granulocyte colony-stimulating factor (G-CSF) treatment. These findings highlight the usefulness of identifying variants in patients with inborn errors of immunity for early clinical management and the need to rule out mosaicism in noncarrier parents with more than one case in the family.
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