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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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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.
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
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Combined Effects of Drugs: Synergism01:27

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Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
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Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors01:20

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Antiplatelet drugs emerge as frontline defenders against the insidious threat of thromboembolic diseases, where abnormal clots obstruct vital blood vessels. These drugs stand as bulwarks, inhibiting platelet aggregation and clot formation, thereby mitigating the risk of life-threatening conditions like myocardial infarction, coronary artery disease, and thrombotic strokes.
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
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Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants01:18

Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants

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Oral anticoagulants are vital tools in preventing and treating blood clotting disorders. This diverse class of medications can be categorized as vitamin K antagonists, exemplified by warfarin, and direct thrombin inhibitors (DTIs), such as dabigatran, as well as factor Xa inhibitors, including rivaroxaban.
Warfarin, a prominent vitamin K antagonist family member, exerts its effect by inhibiting the enzyme VKORC1 (vitamin K epoxide reductase complex 1). By hindering this enzyme, warfarin...
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Anticoagulant Drugs: Low-Molecular-Weight Heparins01:30

Anticoagulant Drugs: Low-Molecular-Weight Heparins

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Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
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In Vitro Methods for Comparing Target Binding and CDC Induction Between Therapeutic Antibodies: Applications in Biosimilarity Analysis
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[Complement inhibitors: A global point of view].

A Pogossian1, C de Moreuil1, C Lemarié2

  • 1UMR 1304, GETBO, université de Bretagne Occidentale, Brest, France; Département de médecine interne, médecine vasculaire et pneumologie, CHU Brest, Brest, France.

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Innovative complement inhibitors are revolutionizing treatment for various diseases. This review covers the complement system, its role in disease, and promising new therapeutic strategies.

Keywords:
ComplementComplement inhibitorComplémentInhibiteur du complémentInnovantInnovating

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Area of Science:

  • Immunology
  • Complement System Biology
  • Drug Development

Context:

  • The complement system, a key part of innate immunity, is gaining significant attention in medicine.
  • Numerous complement-inhibiting drugs targeting different cascade levels have emerged.
  • These advancements offer hope for diseases with previously poor prognoses.

Purpose:

  • To review the fundamental role of the complement system in human health.
  • To discuss pathophysiological roles of complement in various diseases.
  • To detail classes of complement inhibitors and their promising clinical applications.

Summary:

  • This article explores the complement system's crucial functions and its involvement in disease pathogenesis.
  • It categorizes novel complement inhibitors and outlines their therapeutic potential.
  • The review addresses current clinical trials and future directions for these transformative treatments.

Impact:

  • Complement inhibitors are improving outcomes for patients with severe conditions.
  • This field is rapidly evolving, with ongoing research into optimal drug use and new indications.
  • Understanding complement pathways is vital for developing next-generation therapies.