Case Report: Allelic and biallelic variants in coagulation factor XI cause factor XI deficiency

Autor: Chen Liang, Jie-Yuan Jin, Hai-Hong Shi, Hao-Xian Li, Lin-Lin Chen, Yang-Hui Zhang, Qin Wang, Qiu-Li Li, Rui-Man Li
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Frontiers in Cardiovascular Medicine, Vol 11 (2024)
Druh dokumentu: article
ISSN: 2297-055X
DOI: 10.3389/fcvm.2024.1461899
Popis: Factor XI deficiency is a rare inherited coagulation disorder with an estimated prevalence of affecting 1 in 1 million. It is characterized by mild and variable bleeding phenotypes, including bruises, nosebleeds, hematuria, and postpartum hemorrhage. It can be caused by either allelic or biallelic variants in coagulation factor XI (F11). Coagulation factor XI is a glycoprotein that circulates in plasma as a non-covalent complex with high-molecular-weight kininogen. It is converted to an active protease, coagulation factor XIa, which participates in blood coagulation as a catalyst. In this study, we recruited a family with Factor XI deficiency and identified two F11 variants using whole-exome sequencing. One (NM_000128.4: c.841C>T, p.Q281X) was a known variant, and the other (NM_000128.4: c.1832T>G, p.V611G) had not been reported. In addition, we compiled the characteristics of known missense variants in coagulation factor XI. Our findings enriched the variant spectrum of Factor XI deficiency and contributed to the genetic counseling and molecular diagnostics of Factor XI deficiency.
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