Phenotypic and Genotypic Analysis of a Hereditary Antithrombin Deficiency Pedigree Due to a Novel SERPINC1 Mutation (p.Met281Thr)

Siqi Liu; Shasha Luo; Lihong Yang; Mingshan Wang; Yanhui Jin; Xiaolong Li; Qiyu Xu

doi:10.1055/a-1145-4224

Hämostaseologie, Inhaltsverzeichnis

Hamostaseologie 2020; 40(05): 687-690
DOI: 10.1055/a-1145-4224

Letter to the Editor

Phenotypic and Genotypic Analysis of a Hereditary Antithrombin Deficiency Pedigree Due to a Novel SERPINC1 Mutation (p.Met281Thr)

Autor*innen

Siqi Liu

¹Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
Shasha Luo

¹Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
Lihong Yang

¹Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
Mingshan Wang

¹Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
Yanhui Jin

¹Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
Xiaolong Li

¹Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
Qiyu Xu

¹Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China

Abstract

Antithrombin (AT) is one of the physiological anticoagulants that are mainly synthesized in the liver. As a protease inhibitor belonging to the serpin superfamily, AT is able to inactivate thrombin and inhibit activated coagulation factors IX, X, XI, and XII (FIXa, FXa, FXIa, and FXIIa).[1] Moreover, it has been found that AT can inhibit activated FVII (FVIIa) by accelerating dissociation of FVIIa–tissue factor complex and preventing it from recombining.[2] The AT gene (SERPINC1), located on chromosome 1 at q23.1–23.9 and spreads 13.5 kb, is composed of seven extrons and six introns.[3] Hereditary AT deficiency is a rare thrombotic disorder caused by defects in SERPINC1 gene.[4] It is inherited in an autosomal-dominant manner with an incidence of roughly 0.02 to 0.25% in the general population and 2 to 5% in patients with a history of venous thromboembolism (VTE).[1] [5] The most common thrombotic manifestations of patients with AT deficiency are VTEs, and their risks of VTE are approximately 20 times higher than those of nondeficient individuals.[6] And the consequences of thrombophilia caused by AT deficiency are more severe than those of protein C and S protein deficiency,[2] so it should be given sufficient attention.

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Referenzen

References
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