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Complement System01:27

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The complement system is a group of approximately 20 plasma proteins that strengthen the body's defenses against infections through opsonization, inflammation, and cell lysis. Opsonization involves coating pathogens with complement proteins, making them more recognizable and facilitating phagocyte engulfment. Certain complement proteins induce inflammation that attracts immune cells to the site of infection. Cell lysis involves the destruction of pathogens through the formation of a...
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Methods for Quantitative Detection of Antibody-induced Complement Activation on Red Blood Cells
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Protection of host cells by complement regulators.

Christoph Q Schmidt1, John D Lambris2, Daniel Ricklin2

  • 1Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Ulm, Germany. christoph.schmidt@uni-ulm.de.

Immunological Reviews
|October 27, 2016
PubMed
Summary
This summary is machine-generated.

Complement regulators are crucial for protecting the body from self-damage by the immune system's complement cascade. This review highlights their functions, associated diseases, and therapeutic potential.

Keywords:
complement receptorsfactor Hhost recognitionsoluble regulators

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Area of Science:

  • Immunology
  • Biochemistry

Background:

  • The complement cascade is an ancient immune system essential for pathogen defense and maintaining tissue homeostasis.
  • The alternative pathway (AP) is the oldest complement activation route, continuously probing various structures, necessitating self-protection mechanisms.
  • Complement regulators are vital for preventing self-damage from uncontrolled complement activation.

Purpose of the Study:

  • To review the role of complement regulators in immune defense.
  • To explain the functions of complement regulators and their involvement in disease.
  • To highlight therapeutic strategies involving complement inhibitors.

Main Methods:

  • Literature review of complement cascade and regulator functions.
  • Analysis of diseases linked to complement regulator dysfunction.
  • Exploration of therapeutic applications of complement inhibitors.

Main Results:

  • Complement regulators act as preformed mediators, protecting self-cells from indiscriminate AP activation.
  • Dysregulation of complement regulators is implicated in various diseases.
  • Natural complement inhibitors show promise as therapeutic agents.

Conclusions:

  • Complement regulators are indispensable for immune homeostasis and preventing self-attack.
  • Understanding complement regulator function is key to treating related diseases.
  • Targeting complement pathways with inhibitors offers a promising therapeutic avenue.