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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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Coagulation01:09

Coagulation

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The coagulation phase is a critical part of the body's process to prevent blood loss following injury to blood vessels. It involves chemical reactions that form a clot to seal the injured area. The clotting process begins shortly after injury, within 15-20 seconds for severe damage and 1-2 minutes for minor injuries.
During the coagulation phase, clotting factors, or procoagulants, play a vital role in initiating and progressing the coagulation cascade. This cascade is a series of reactions...
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Coagulation01:06

Coagulation

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Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...
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Extrinsic and Intrinsic Pathways of Hemostasis01:20

Extrinsic and Intrinsic Pathways of Hemostasis

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Blood clotting or coagulation involves extrinsic and intrinsic pathways, which ultimately merge into the common pathway, forming a fibrin clot.
The Extrinsic Pathway
The extrinsic pathway of coagulation is typically initiated by tissue damage that exposes blood to tissue factor (TF), a protein released by the damaged tissue cells outside the blood vessels—this interaction with TF triggers biochemical reactions involving specific clotting factors. The key player here is Factor VII, which...
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Surface Membrane Barriers01:18

Surface Membrane Barriers

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The skin and mucous membranes serve as the primary line of defense against pathogens by providing both physical and chemical protection. These barriers are essential in preventing the entry and establishment of microbes, thereby maintaining the integrity of the host.
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
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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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Related Experiment Video

Updated: Mar 18, 2026

Assessment of the Anticoagulant and Anti-inflammatory Properties of Endothelial Cells Using 3D Cell Culture and Non-anticoagulated Whole Blood
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Complement-coagulation crosstalk on cellular and artificial surfaces.

Rebecca Wiegner1, Shinjini Chakraborty1, Markus Huber-Lang1

  • 1Department of Orthopedic Trauma, Hand-, Plastic- and Reconstructive Surgery, University Hospital of Ulm, Germany.

Immunobiology
|July 4, 2016
PubMed
Summary
This summary is machine-generated.

The complement and coagulation systems, crucial for inflammation, interact on surfaces like cells and pathogens. This review explores these surface-based interactions to provide a complete understanding.

Keywords:
Artificial surfacesCellular surfacesCoagulationComplementCrosstalk

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Area of Science:

  • Biochemistry
  • Immunology
  • Physiology

Background:

  • Complement and coagulation systems are serine proteases vital in inflammation.
  • Complement confers immune functions; coagulation ensures hemostasis.
  • Interactions between these systems occur in fluid and on surfaces.

Purpose of the Study:

  • To review the interactions between complement and coagulation systems.
  • To focus on interactions occurring on surfaces.

Main Methods:

  • Literature review of studies on complement-coagulation crosstalk.
  • Analysis of interactions on various biological and artificial surfaces.

Main Results:

  • Evidence shows complement and coagulation proteins interact on endothelium, platelets, leukocytes, microparticles, pathogens, and artificial surfaces.
  • These interactions are significant during inflammatory responses.

Conclusions:

  • Complement and coagulation systems extensively interact on surfaces.
  • Understanding these surface-based interactions is key to comprehending inflammation and hemostasis.