The role of ficolins and MASPs in hereditary angioedema due to C1-inhibitor deficiency

Dorottya Csuka, Lea Munthe-Fog, Mikkel-Ole Skjoedt, Andrea Kocsis, Zsuzsanna Zotter, Péter Gál, Lilian Varga, Henriette Farkas, George Füst, Peter Garred

9 Citations (Scopus)

Abstract

Background and Objective: Hereditary angioedema due to C1-inhibitor deficiency (HAE-C1-INH) causes disturbances in the complement system. However, the influence of HAE-C1-INH on the lectin pathway of complement is unresolved. Thus, we studied the main initiator molecules, enzymes and regulators in the lectin pathway in patients with HAE-C1-INH. Methods: The serum concentrations of ficolin-2, ficolin-3, MBL, MASP-2, MASP-3, and MAP-1 were measured during symptom-free periods in 91 patients with HAE-C1-INH, and in 100 healthy controls using sandwich ELISAs. Results: Compared with controls, the levels of ficolin-2 (p<. 0.0001) and MASP-2 (p= 0.0238) were reduced, while the levels of MBL and MASP-3 were elevated (p= 0.0028 and p<. 0.0001, respectively) in HAE-C1-INH patients. Ficolin-3 and MAP-1 levels did not differ significantly between the two groups. Ficolin-2 correlated with MASP-3 in patients (r= 0.3443, p= 0.0008), while these parameters showed an opposite relationship in controls (r= -0.4625, p<. 0.0001). In the patients, ficolin-3 correlated with MASP-2 (r= 0.3698, p= 0.001). Ficolin-2, -3, and MAP-1 correlated negatively with the annual requirement of plasma derived C1-INH concentrate (r= -0.2863, p= 0.0059; r= -0.2654, p= 0.0110 and r= -0.2501, p= 0.0168, respectively). Ficolin-3 showed a negative correlation with the annual number of attacks (r= -0.2478, p= 0.0179). Conclusions: We found significant differences between patients and controls in the levels of some of the molecules belonging to the lectin complement pathway. Low concentrations of particularly ficolin-2 and -3 were inversely correlated with the severity of HAE-C1-INH, while this was not observed for MBL. This suggests a previously unrecognized involvement of the ficolin-dependent lectin complement pathway in the pathophysiology of HAE-C1-INH.

Original languageEnglish
JournalMolecular Immunology
Volume54
Issue number3-4
Pages (from-to)271-277
Number of pages7
ISSN0161-5890
DOIs
Publication statusPublished - Jul 2013

Fingerprint

Dive into the research topics of 'The role of ficolins and MASPs in hereditary angioedema due to C1-inhibitor deficiency'. Together they form a unique fingerprint.

Cite this