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Updated: May 31, 2026

Porcine Corneal Tissue Explant to Study the Efficacy of Herpes Simplex Virus-1 Antivirals
Published on: September 20, 2021
[Antiviral activity of 3-hydroxyphthalic anhydride-modified ovalbumin against herpes simplex virus 2 in vitro]
Li-li He1, Jiang-man Duan, Jia-yin Qiu
1School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China. helili-1@yahoo.com
Objective:
To investigate the antiviral activity of 3-hydroxyphthalic anhydride-modified ovalbumin (HP-OVA) against herpes simplex virus 2 (HSV-2) in vitro.
Methods:
By chemical modification, ovalbumin (OVA) was treated with 3-hydroxyphthalic anhydride (HP) to prepare HP-OVA. The anti-HSV-2 activity against HSV-2 333 virus in vitro and the cytotoxicity of HP-OVA in African green monkey kidney cells (Vero cells) were detected by MTT colorimetric assay. The inhibitory effects of HP-OVA on 17 strains of vaginal lactobacilli were observed by microscopy.
Results:
Anhydride-modified ovalbumin significantly inhibited the infection by HSV-2 with an IC(50) of 23.56±8.33 µg/ml. HP-OVA showed only low cytotoxicity to the host cells with a CC(50) over 1 mg/ml. HP-OVA did not produce significant inhibitory effect on the 17 strains of vaginal lactobacilli (MIC>1 mg/ml).
Conclusion:
Anhydride-modified protein HP-OVA exhibits potent anti-HSV-2 activity in vitro and can be a good microbicide candidate for prevention of sexually transmitted diseases.
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