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Mussel adhesive Protein-conjugated Vitronectin (fp-151-VT) Induces Anti-inflammatory Activity on LPS-stimulated
Jung-Mo Ahn1, Jun Sik Lee2, Seul-Gee Um1
1a Biotechnology & Business Center , Incheon Business Information Technopark , Incheon , Republic of Korea.
Background:
Skin inflammation and dermal injuries are a major clinical problem because current therapies are limited to treating established scars, and there is a poor understanding of healing mechanisms. Mussel adhesive proteins (MAPs) have great potential in many tissue engineering and biomedical applications. It has been successfully demonstrated that the redesigned hybrid type MAP (fp-151) can be utilized as a promising adhesive biomaterial. The aim of this study was to develop a novel recombinant protein using fp-151 and vitronectin (VT) and to elucidate the anti-inflammatory effects of this recombinant protein on macrophages and keratinocytes.
Methods:
Lipopolysaccharide (LPS) was used to stimulate macrophages and UVB was used to stimulate keratinocytes. Inducible nitric oxide synthase (iNOS) and cyclooxygenase (COX)-2 were analyzed by Western Blot. Inflammatory cytokines and NO and ROS production were analyzed.
Result:
In macrophages stimulated by LPS, expression of the inflammatory factors iNOS, COX-2, and NO production increased, while the r-fp-151-VT-treated groups had suppressed expression of iNOS, COX-2, and NO production in a dose-dependent manner. In addition, keratinocytes stimulated by UVB and treated with r-fp-151-VT had reduced expression of iNOS and COX-2. Interestingly, in UVB-irradiated keratinocytes, inflammatory cytokines, such as interleukin (IL)-1b, IL-6, and tumor necrosis factor (TNF)-a, were significantly reduced by r-fp-151-VT treatment.
Conclusions:
These results suggest that the anti-inflammatory activity of r-fp-151-VT was more effective in keratinocytes, suggesting that it can be used as a therapeutic agent to treat skin inflammation.
Insights
A new recombinant protein, r-fp-151-VT, effectively reduces inflammation in skin cells. This biomaterial shows promise for treating skin inflammation and healing dermal injuries.
Area of Science:
- Biomaterials Science
- Dermatology
- Immunology
Background:
- Skin inflammation and dermal injuries present significant clinical challenges with limited therapeutic options.
- Mussel adhesive proteins (MAPs), particularly redesigned fp-151, show potential as biomaterials.
- Vitronectin (VT) is a key protein in cell adhesion and extracellular matrix interactions.
Purpose of the Study:
- To develop a novel recombinant protein combining fp-151 and vitronectin (r-fp-151-VT).
- To investigate the anti-inflammatory effects of r-fp-151-VT on macrophages and keratinocytes.
Main Methods:
- Macrophages were stimulated with lipopolysaccharide (LPS); keratinocytes were stimulated with UVB.
- Western Blot was used to analyze inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) expression.
- Nitric oxide (NO), reactive oxygen species (ROS), and inflammatory cytokine production were quantified.
Main Results:
- r-fp-151-VT suppressed iNOS, COX-2, and NO production in LPS-stimulated macrophages in a dose-dependent manner.
- UVB-stimulated keratinocytes treated with r-fp-151-VT showed reduced iNOS and COX-2 expression.
- r-fp-151-VT significantly decreased inflammatory cytokines (IL-1β, IL-6, TNF-α) in UVB-irradiated keratinocytes.
Conclusions:
- The recombinant protein r-fp-151-VT exhibits potent anti-inflammatory activity, particularly in keratinocytes.
- r-fp-151-VT demonstrates potential as a therapeutic agent for managing skin inflammation.
- Further research into MAP-based biomaterials could advance treatments for skin injuries.
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