Journal
IMMUNOBIOLOGY
Volume 220, Issue 6, Pages 711-713Publisher
ELSEVIER GMBH, URBAN & FISCHER VERLAG
DOI: 10.1016/j.imbio.2015.01.003
Keywords
Ficolin-3; FCN3; Immunodeficiency; Complement; Infection
Categories
Funding
- Polish National Science Centre [N N402 353438, UMO-2011/03/B/NZ6/00052]
- European Union within European Social Fund, through Human Capital Programme (6.1.3.)
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Ficolin-3 (also called H-ficolin or Hakata antigen) is the most potent activator of the lectin pathway of complement in vitro. Its genetically determined deficiency in Caucasians is associated with a frame-shift mutation +1637delC (rs28357092) of the FCN3 gene. When it was described for the first time, it was postulated to be strictly associated with enhanced susceptibility to infections. At present, with our knowledge extended by several other patients that issue seems to be more complicated and less clear-cut. Two new cases of primary Ficolin-3 deficiency are reported here: a 50-year old male, suffering from membranous nephropathy and an 11-month old male infant who was operated on to repair congenital heart disease. Based on those cases and a literature review, we conclude that the clinical consequences of congenital Ficolin-3 deficiency are still unclear and such questions as whether it may be life-threatening or acts as a disease modifier remain to be elucidated. (C) 2015 Elsevier GmbH. All rights reserved.
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