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Related Concept Videos

Phases of Wound Repair01:28

Phases of Wound Repair

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Following injury, the integrity of the injured tissues must be reestablished. For example, in skin tissue, wound repair involves coordination among resident skin cells, blood mononuclear cells, extracellular matrix, growth factors, and cytokines to complete the healing cascade.
Formation of Blood Clot
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Collagens are the Major Structural Proteins of ECM01:13

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Three main types of fibers are secreted by fibroblasts: collagen fibers, elastic fibers, and reticular fibers. Collagen fiber is made from fibrous protein subunits linked together to form a long, straight fiber. Collagen fibers, while flexible, have great tensile strength, resist stretching, and give ligaments and tendons their characteristic resilience and strength. These fibers hold connective tissues together, even during the body's movement.
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Overview of Regeneration and Repair01:19

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Regeneration and repair processes are critical in healing damages caused by injury, disease, and aging. In regeneration, the damaged tissue is entirely replaced with new growth that restores the original architecture and function. In contrast, tissue repair usually results in a fixed tissue architecture involving scar formation. Scars generally do not reestablish tissue function and may also exhibit structural abnormalities at the injury site.
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Fibril-associated Collagen01:11

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Fibril-associated collagens are a type of collagens present in the extracellular matrix with interrupted triple helices or FACIT (Fibril-associated collagens interrupted triple-helices). FACIT help connect and attach the collagen fibrils with each other as well as with other proteins of the extracellular matrix.
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The immune system's inflammatory response destroys the invading pathogen, permitting the tissue to heal. The changes during the cellular and vascular stages allow exudate formation at the site of inflammation. The inflammatory exudate released from the wound has high protein content and a specific gravity above 1.020.
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Matrix metalloproteases (MMPs) are enzymes involved in the hydrolysis of proteins and glycoproteins of the extracellular matrix. MMPs are essential for the migration and proliferation of cells through the dense matrix network, throughout embryonic development, and throughout morphogenesis. The first MMP activity discovered was a collagenase in a tadpole's tail undergoing metamorphosis. The active collagen deposition and modifications lead to the morphogenesis of tadpoles into the adult...
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Related Experiment Video

Updated: Nov 3, 2025

Doxycycline Loaded Collagen-Chitosan Composite Scaffold for the Accelerated Healing of Diabetic Wounds
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Collagen in Wound Healing.

Shomita S Mathew-Steiner1, Sashwati Roy1, Chandan K Sen1

  • 1Indiana Center for Regenerative Medicine and Engineering, School of Medicine, Indiana University, Indianapolis, IN 46202, USA.

Bioengineering (Basel, Switzerland)
|June 2, 2021
PubMed
Summary
This summary is machine-generated.

Collagen is vital for normal wound healing. This review explores collagen

Keywords:
collagencollagen dressingsengineered collagenextracellular matrixinflammationsignalingwound healing

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Area of Science:

  • Biomedical Engineering
  • Tissue Engineering
  • Wound Healing Research

Background:

  • Normal wound healing involves inflammatory, proliferative, and remodeling phases.
  • Collagen, an extracellular matrix component, regulates these phases.
  • Chronic wounds exhibit persistent inflammation and extracellular matrix degradation.

Purpose of the Study:

  • To review collagen's role in wound healing biological processes.
  • To summarize current literature on collagen-based wound therapies.

Main Methods:

  • Literature review of collagen's function in wound healing.
  • Analysis of collagen-based products in wound care.

Main Results:

  • Collagen is central to regulating key wound healing processes.
  • Collagen's role extends to modulating inflammation and matrix degradation.
  • Collagen-based products are utilized as adjunct therapies.

Conclusions:

  • Collagen is a critical regulator in all phases of wound healing.
  • Understanding collagen's biological significance supports its therapeutic use.
  • Collagen-based therapies show promise for promoting wound healing completion.