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Related Concept Videos

Complement System01:27

Complement System

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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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Antibody Actions01:26

Antibody Actions

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Antibodies, or immunoglobulins, are critical players in the immune system's arsenal against invading pathogens. Produced by B cells and plasma cells, their primary role is to detect and bind to specific antigens, molecules found on the surface of pathogens like bacteria or viruses. Beyond antigen recognition, antibodies perform several vital functions that contribute to immune defense.
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Hypersensitivity Reactions: Cytolytic Reactions01:01

Hypersensitivity Reactions: Cytolytic Reactions

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Type II hypersensitivity involves IgG and IgM antibodies targeting cell surface antigens, leading to cell destruction. This can occur through complement activation, antibody-dependent cell-mediated cytotoxicity (ADCC), or acting as opsonins for phagocytosis. When excessive, these reactions cause significant tissue damage.Drug-induced hemolytic anemia is a common example, where drugs like penicillin or cephalosporins bind to red blood cells, forming drug-protein complexes. These complexes...
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Antimicrobial Proteins01:23

Antimicrobial Proteins

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Antimicrobial proteins are important components of the immune system. They aid the body in combating pathogens by either killing them directly or hindering their replication processes. Four main types of antimicrobial substances are interferons, the complement system, iron-binding proteins, and antimicrobial proteins.
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Defense Against Bacterial Pathogens01:31

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The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
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Related Experiment Video

Updated: Apr 17, 2026

In Vitro Methods for Comparing Target Binding and CDC Induction Between Therapeutic Antibodies: Applications in Biosimilarity Analysis
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Complement in therapy and disease: Regulating the complement system with antibody-based therapeutics.

Joost P M Melis1, Kristin Strumane1, Sigrid R Ruuls1

  • 1Genmab, Utrecht, The Netherlands.

Molecular Immunology
|February 21, 2015
PubMed
Summary
This summary is machine-generated.

Antibodies can be designed to modulate the complement system, offering new therapeutic strategies. This review explores antibody-based drugs that enhance or inhibit complement activity for various diseases.

Keywords:
AntibodyAntibody engineeringCancerComplementImmunologyTherapy

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Area of Science:

  • Immunology
  • Biochemistry
  • Pharmacology

Background:

  • The complement system is crucial in immune responses, development, and homeostasis.
  • Growing knowledge of complement pathways facilitates novel therapeutic approaches.
  • Antibodies are versatile platforms for targeting complement activity.

Purpose of the Study:

  • To review the design and development of antibody-based therapeutics targeting the complement system.
  • To discuss the future potential of these antibody drugs.

Main Methods:

  • Literature review of antibody-based complement therapeutics.
  • Analysis of complement system interactions and antibody modulation.

Main Results:

  • Antibodies can be engineered to stimulate or inhibit complement.
  • These therapeutics hold promise for treating cancer, autoimmune diseases, and more.
  • Advancements in understanding complement pathways drive therapeutic innovation.

Conclusions:

  • Antibody-based drugs offer a promising avenue for modulating the complement system.
  • Targeting complement with antibodies can address unmet needs in various diseases.
  • Future research will continue to refine antibody design for complement modulation.