Human Keratin Matrices Suppress Matrix Metalloproteinase Activity to Support Wound Healing
These videos have been matched automatically. Contact us if they are not relevant.
These videos have been matched automatically. Contact us if they are not relevant.
View abstract on PubMed
Summary
This summary is machine-generated.Human keratin matrix (HKM) effectively treats chronic wounds by suppressing harmful protease activity, specifically matrix metalloproteinase-9 (MMP-9). This durable biomaterial modulates the wound
Area Of Science
- Biomaterials Science
- Wound Healing
- Enzymology
Background
- Chronic wounds exhibit elevated protease activity, hindering healing.
- Existing biomaterials' roles in modulating wound enzymatic environments are under investigation.
- Keratin is known for its resistance to enzymatic degradation.
Purpose Of The Study
- To investigate the effect of a human keratin matrix (HKM) on key chronic wound proteases.
- To determine HKM's mechanism of action in modulating the enzymatic milieu.
- To assess HKM's durability and efficacy in a chronic wound model.
Main Methods
- Tested HKM's effect on neutrophil-derived elastase (NE), matrix metalloproteinase-1 (MMP-1), and MMP-9.
- Assessed HKM's metal ion binding capacity, specifically Zn<sup>2+</sup>.
- Evaluated HKM's durability and wound healing efficacy in a diabetic mouse model over one and two weeks.
Main Results
- HKM suppressed MMP-9 activity without reducing enzyme protein levels.
- HKM demonstrated an ability to bind metal ions, reducing Zn<sup>2+</sup> concentration.
- HKM remained durable in the wound environment and maintained efficacy over two weeks.
Conclusions
- HKM is a unique biomaterial for chronic wound treatment.
- HKM modulates wound matrix metalloproteinase (MMP) activity.
- HKM's efficacy is sustained due to its inherent stability and enzymatic modulation.
These videos have been matched automatically. Contact us if they are not relevant.
These videos have been matched automatically. Contact us if they are not relevant.
Related Concept Videos
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...
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
In case of deep injuries, trauma to blood vessels results in blood loss. In the meantime, phospholipids released from the ruptured endothelial cellular membrane are converted into arachidonic...
Overview
In order to maintain tissue organization, many animal cells are surrounded by structural molecules that make up the extracellular matrix (ECM). Together, the molecules in the ECM maintain the structural integrity of tissue as well as the remarkable specific properties of certain tissues.
Composition of the Extracellular Matrix
The extracellular matrix (ECM) is commonly composed of ground substance, a gel-like fluid, fibrous components, and many structurally and functionally diverse...