研究目的
To prolong the release of a heparan sulfate binding peptide, G2-C, using a commercially available contact lens as a delivery vehicle and to demonstrate the ability of the released peptide to block herpes simplex virus-1 (HSV-1) infection using in vitro, ex vivo, and in vivo models of corneal HSV-1 infection.
研究成果
Extended release of an anti–HS peptide through a commercially available contact lens can generate significant anti–HSV-1 activity and provides a new and effective way to control corneal herpes. The study describes a novel way to suppress ocular herpes without the need for multiple rounds of daily or weekly treatments.
研究不足
The study demonstrated the release and antiviral activity of the G2-C peptide from contact lenses in vitro, ex vivo, and in vivo. However, the in vitro release rate variation and the need for further in vitro–in vivo correlation to estimate the most appropriate method for in vivo activity of this type of device were noted as limitations.
1:Experimental Design and Method Selection:
The study involved loading commercially available contact lenses with the G2-C peptide solution to determine its release profile and antiviral efficacy.
2:Sample Selection and Data Sources:
Human corneal epithelial cells (HCE), African green monkey kidney (Vero) cell lines, and HSV-1 viruses were used. Human and pig corneas were used for ex vivo models, and BALB/C mice were used for in vivo models.
3:List of Experimental Equipment and Materials:
Contact lenses (Cooper Vision Biomedic 55), spectrophotometer (DU 800; Beckman Coulter), microplate reader (TECAN), FACS (LSR Fortessa; BD Biosciences), confocal microscope (Zeiss 710; Carl Zeiss Microscopy GmbH).
4:Experimental Procedures and Operational Workflow:
Contact lenses were loaded with G2-C peptide, and release studies were conducted. Cytotoxicity assays, viral entry and spread assays, and ex vivo and in vivo infection models were performed.
5:Data Analysis Methods:
Statistical analysis was performed using GraphPad Prism 6. Data represents the means of three independent experiments unless otherwise specified, and the error bars represent SEM.
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