期刊
JOURNAL OF CLINICAL MEDICINE
卷 10, 期 9, 页码 -出版社
MDPI
DOI: 10.3390/jcm10092023
关键词
HAE; C1-INH-HAE; nC1-INH-HAE; SERPING1; F12; PLG; ANGPT1; KNG1; MYOF; HS3ST6
Hereditary angioedema is a rare genetic disorder caused by mutations in the SERPING1 gene, with a new type of HAE without SERPING1 gene mutations also identified. Six different genes have been associated with nC1-INH-HAE. Future research focuses on genetic characterization and diagnostic applications using NGS technologies.
Hereditary angioedema is a rare inherited disorder characterized by recurrent episodes of the accumulation of fluids outside of the blood vessels, causing rapid swelling of tissues in the hands, feet, limbs, face, intestinal tract, or airway. Mutations in SERPING1, the gene that encodes C1-INH (C1 esterase inhibitor), are responsible for the majority of cases of hereditary angioedema. C1 esterase inhibitor (C1-INH) is a major regulator of critical enzymes that are implicated in the cascades of bradykinin generation, which increases the vascular permeability and allows the flow of fluids into the extracellular space and results in angioedema. Moreover, a dominantly inherited disease has been described that has a similar clinical picture to C1-INH-HAE (Hereditary angioedema due to C1 inhibitor deficiency), but with normal C1-INH level and activity. This new type of HAE has no mutation in the SERPING1 gene and it is classified as nC1-INH-HAE (HAE with normal C1-INH). Currently mutations in six different genes have been identified as causing nC1-INH-HAE: factor XII (F12), plasminogen (PLG), angiopoietin 1 (ANGPT1), Kininogen 1 (KNG1), Myoferlin (MYOF), and heparan sulfate (HS)-glucosamine 3-O-sulfotransferase 6 (HS3ST6). In this review we aim to summarize the recent advances in genetic characterization of angioedema and possible future prospects in the identification of new genetic defects in HAE. We also provide an overview of diagnostic applications of genetic biomarkers using NGS technologies (Next Generation Sequencing).
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