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Bellos, E; van, Leeuwen, K; Duret, A; Hodeib, S; Mashbat, M; Kohlfuerst, DS; Boeddha, NP; Schlapbach, LJ; Wright, VJ; Fink, CG; van, der, Flier, M; van, Deuren, M; Sprong, T; López-Trascasa, M; López-Lera, A; Martinón-Torres, F; Salas, A; Santillo, D; Zenz, W; Driessen, GJ; Anderson, ST; Secka, F; Paulus, S; de, Groot, R; Emonts, M; Carrol, ED; Herberg, J; Levin, M; Sancho-Shimizu, V; Kuijpers, T, , EUCLIDS, Consortium.
Genetic determinants of the complement and coagulation pathways in invasive meningococcal disease.
J Allergy Clin Immunol. 2025; Doi: 10.1016/j.jaci.2025.09.011
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Co-Autor*innen der Med Uni Graz
Kohlfürst Daniela
Zenz Werner
Study Group Mitglieder der Med Uni Graz:
Binder Alexander
Eber Ernst
Kohlmaier Benno
Pfurtscheller Klaus
Roedl Siegfried
Sagmeister Manfred Gerald
Schweintzger Nina
Sellner Andrea
Sonnleitner Astrid
Sperl Matthias
Till Holger
Trobisch Andreas
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Abstract:
BACKGROUND: The complement and coagulation pathways are implicated in the systemic manifestations of invasive meningococcal disease (MD). However, the genetic landscape of these 2 interconnected plasma proteolytic pathways has not been systematically explored. OBJECTIVE: We sought to investigate how genetic variation in the complement and coagulation pathways contributes to invasive MD. METHODS: Whole-exome sequencing (WES) and high-coverage amplicon-based sequencing were performed in a large series of 229 patients with MD. A group of 275 patients with other invasive bacterial infections was used as a control cohort. RESULTS: WES data showed an enrichment of rare variants in the complement and coagulation genes in MD, namely, CFP and FCGR2A. In a subcohort of severe MD, CFP and SERPINE1 were enriched for rare variants compared with the control cohort. Combining the amplicon panel and the WES data sets, 1 mild hemophilia A case, 5 properdin mutated individuals, and 4 digenic complement deficiencies were identified. In addition, a significant copy number variant association in the CFH/CFHR1-5 gene cluster was reported. This provides strong support for the role of complement regulation in MD. Furthermore, there are pathogenic variants in VWF, PROS1, and SERPINC1, relevant to coagulation and fibrinolysis. CONCLUSIONS: The study demonstrates the value of a mechanistic pathway approach to describe the genetic landscape of infectious disease, particularly in understanding its course and outcome. Notably, we identify complement-mediated thrombotic microangiopathy as a key pathophysiologic mechanism involved, particularly in MD.

Find related publications in this database (Keywords)
Complement pathway
coagulation
Neisseria meningitidis
sepsis
human genetics
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