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  • 1
    In: Wound Repair and Regeneration, September 2011, Vol.19(5), pp.597-607
    Description: The pathophysiology leading to delayed wound healing is complex and efficient therapeutic approaches for accelerated wound healing currently do not exist. We developed a novel drug‐eluting platform for the potential use in wound dressings. Here, we report on the potential of eluting ascorbic acid‐2‐phosphate (‐2), a highly stable variant of ascorbic acid, to induce angiogenesis and to promote collagen synthesis by fibroblasts. The drug‐eluting platform device () consists of biocompatible polymeric layers comprising polyethylene terephtalate, polyvinyl alcohol (), and polyurethane with as the solvent for ‐2. The angiogenic potential of ‐2 was evaluated in the endothelial cell tube formation assay () and in the chorion allantoic membrane () model. Collagen synthesis by ‐2‐stimulated fibroblasts was determined by irius ed staining. ‐2 significantly induced angiogenesis in five independent and assays and induced collagen synthesis in two different fibroblast cell lines. The eluting kinetics of ‐2 was determined by the ultraviolet anorop method and the functional 2,2′‐Azinobis‐(3‐ethylbenzthiazolin‐6‐sulfonic acid) method. Eluting profiles showed a continuous release in the range of biologically effective concentrations 〉10 days. This is the first report showing the proangiogenic‐ and collagen‐promoting features of ‐2. loaded with ‐2 ought to be further evaluated as wound dressings or as supplementary pads for topical treatment of delayed wound healing in preclinical studies.
    Keywords: Drug Delivery Systems ; Angiogenesis Inducing Agents -- Pharmacology ; Ascorbic Acid -- Analogs & Derivatives ; Neovascularization, Physiologic -- Drug Effects ; Wound Healing -- Drug Effects;
    ISSN: 1067-1927
    E-ISSN: 1524-475X
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  • 2
    Language: English
    In: Molecular Cancer, 2009, Vol.8(1), pp.urn:issn:1476-4598
    Description: Background: Chemoresistance acquisition may influence cancer cell biology. Here, bioinformatics analysis of gene expression data was used to identify chemoresistance-associated changes in neuroblastoma biology. Results: Bioinformatics analysis of gene expression data revealed that expression of angiogenesis-associated...
    Keywords: Endothelial Growth-Factor ; In-Vivo ; Melanoma-Cells ; Tumor-Growth ; N-Myc ; Extracellular-Matrix ; Angiogenic Factors ; Cytokine Network ; Vegf Expression ; Blood-Vessels
    ISSN: 1476-4598
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