Hypertrophic scar is a common complication of burns, skin trauma, and postoperative trauma, which involves excessive proliferation of fibroblasts and accumulation of a large amount of disorganized collagen fibers and extracellular matrix. KGF-2 plays important roles in the regulation of cellular homeostasis and wound healing. In this study, we investigated the effect and underlying mechanism of KGF-2 on scar formation after wound healing both in vitro and in vivo.
View Article and Find Full Text PDFRecombinant human keratinocyte growth factor-2 (rhKGF-2), an effective agent for the regeneration of epithelial tissue, was found to have great potential for use in treatments of corneal diseases that involve corneal epithelial defects. Furthermore, the safety of long-term and high-dose external use of KGF-2 eye drops in rabbits has been well established previously. The aim of this study is to determine the safe dose range and target organs for toxicity of rhKGF-2 eye drops in ().
View Article and Find Full Text PDFKeratinocyte growth factor-2 (KGF-2) can regulate the proliferation and differentiation of keratinocyte, which plays a remarkable role in maintaining normal tissue structure and promoting wound healing. As an effective strategy, KGF-2 solution is widely used in the treatment of wounds in clinical applications. However, KGF-2 in solution cannot achieve sustained release, which results in drug loss and unnecessary waste.
View Article and Find Full Text PDFFront Cell Dev Biol
February 2021
Acidic fibroblast growth factor (aFGF) is a promising regulator of glucose with no adverse effects of hypoglycemia. Previous researches revealed that aFGF mediated adipose tissue remodeling and insulin sensitivity. These findings supported rh-aFGF would be used as a new candidate for the treatment of insulin resistance and type 2 diabetes.
View Article and Find Full Text PDFMater Sci Eng C Mater Biol Appl
February 2021
Thermosensitive chitosan hydrogels have been widely used in drug delivery and tissue repair, but further applications of these hydrogels have been limited by their weak mechanical strength and poor bioactivity. A thermoresponsive hydrogel formed by conjugating recombinant human collagen-peptide (RHC) with chitosan might be better suited for cell encapsulation and wound repair. RHC-chitosan hydrogels were prepared and tested, and the results showed that moderate RHC conjugation led to hydrogels with lower gelation temperature.
View Article and Find Full Text PDFObjective: The present study focused on the development of a poloxamer 407 thermosensitive hydrogel loaded with keratinocyte growth factor-2 (KGF-2) and fibroblast growth factor-21 (FGF-21) as a therapeutic biomaterial in a scald-wound model of type-2 diabetes in Goto-Kakizaki (GK) rats.
Research Design And Methods: In this study, a poloxamer 407 thermosensitive hydrogel loaded with KGF-2 and/or FGF-21 was prepared and its physical and biological properties were characterized. The repairing effects of this hydrogel were investigated in a scald-wound model of type-2 diabetes in GK rats.
Purpose: Basic fibroblast growth factor (bFGF) is an effective drug for corneal injury. However, the explicit role of bFGF in corneal scar formation still remains unclear. Keratinocyte growth factor-2 (KGF-2) is associated with the treatment of wound healing.
View Article and Find Full Text PDFFibroblast growth factor-21 (FGF-21) is a potential cytokine for type II diabetes mellitus. This study aimed to optimize recombinant human FGF-21 (rhFGF-21) production in Escherichia coli BL21 (DE3) employing high cell density fermentation at a 200-L scale and pilot-scale purification. FGF-21 was eventually expressed in E.
View Article and Find Full Text PDFHydrogels are excellent drug delivery carriers with excellent ductility. Here, we report the design of a higher biostability of a recombinant human acidic fibroblast growth factor (rh-aFGF) carbomer hydrogel formulation. To verify the optimality of this formula, we prepared various prescriptions and tested the resulting physical properties including micromorphology, long-term stability, accelerated stability, and destructive test.
View Article and Find Full Text PDFThis study investigated the effect of the excipients, including glycine, mannitol, arginine, trehalose, sorbitol, and poloxamer188, on the stability of recombinant human fibroblast growth factor 21(FGF21) during the process of lyophilization and storage. The glass transition temperature (T), protein secondary structure, aggregation ratio, and the bioactivity of lyophilized FGF21 were measured. We furthermore investigated the effect of FGF21 against ischemia cerebral injury using the middle cerebral artery occlusion (MCAO) model in rats.
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