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Complement and complement deficiencies

K Whaley1, W Schwaeble

  • 1Department of Microbiology and Immunology, University of Leicester, England.

Seminars in Liver Disease
|January 1, 1997
PubMed
Summary
This summary is machine-generated.

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The complement system, a crucial immune defense, involves complex cascades and over 30 components. Liver disease can disrupt complement levels, leading to secondary immune diseases.

Area of Science:

  • Immunology
  • Biochemistry

Background:

  • The complement system is a vital part of innate immunity, mediating key immune responses like phagocytosis and inflammation.
  • It comprises over 30 serum proteins and cell surface regulators, activated via enzymatic cascades.
  • Three distinct pathways initiate complement activation: classical, alternative, and lectin.

Purpose of the Study:

  • To review the structure and function of the complement system.
  • To highlight the role of the liver in complement biosynthesis.
  • To discuss the consequences of complement dysregulation, particularly in liver disease.

Main Methods:

  • Literature review of complement system components and activation pathways.
  • Analysis of the liver's role in producing complement factors.

Related Experiment Videos

  • Examination of the link between liver diseases and complement abnormalities.

    • Main Results:

    • The complement system comprises over 30 components acting through complex enzymatic cascades.
    • The liver is the primary site for synthesizing most complement proteins.
    • Liver diseases can alter plasma complement levels, potentially causing immune deficiencies.

    Conclusions:

    • The complement system is essential for immune defense, with intricate activation mechanisms.
    • Maintaining stable complement levels is critical, with the liver playing a central role in biosynthesis.
    • Disruptions in complement, often linked to liver dysfunction, can result in significant secondary immune disorders.