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Complement Deficiencies in Systemic Lupus Erythematosus

  • Autoimmunity (TK Tarrant, Section Editor)
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Abstract

The complement system is a major, multifunctional part of innate immunity and serves as a bridge between the innate and adaptive immune systems. It consists of more than 30 distinct proteins that interact with one another in a specific sequence. There are three pathways of complement activation: the classical, the lectin, and the alternative pathways. The three pathways are initiated by distinct mechanisms, but they all generate the same core set of effector molecules. Inherited complete deficiencies in complement components are generally very rare and predispose to infections and autoimmune disease. One of the better described associations is between deficiencies in early classical pathway components and the development of systemic lupus erythematosus. The goal of this review will be to discuss the associations between and the causal mechanisms of complement deficiencies and systemic lupus erythematosus.

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Angela Bryan and Eveline Wu declare that they have no conflicts of interest.

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This article does not contain any studies with human or animal subjects performed by any of the authors.

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Correspondence to Eveline Y. Wu.

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This article is part of the Topical Collection on Autoimmunity

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Bryan, A.R., Wu, E.Y. Complement Deficiencies in Systemic Lupus Erythematosus. Curr Allergy Asthma Rep 14, 448 (2014). https://doi.org/10.1007/s11882-014-0448-2

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