HPV-specific antibodies in female genital tract secretions captured via first-void urine retain their neutralizing capacity
| Autor: | Laura Téblick, Marijana Lipovac, Freya Molenberghs, Peter Delputte, Winnok H. De Vos, Alex Vorsters |
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| Jazyk: | angličtina |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Human Vaccines & Immunotherapeutics, Vol 20, Iss 1 (2024) |
| Druh dokumentu: | article |
| ISSN: | 21645515 2164-554X 2164-5515 |
| DOI: | 10.1080/21645515.2024.2330168 |
| Popis: | ABSTRACTHuman papillomavirus (HPV) vaccines, primarily relying on neutralizing antibodies, have proven highly effective. Recently, HPV-specific antibodies have been detected in the female genital tract secretions captured by first-void urine (FVU), offering a minimally invasive diagnostic approach. In this study, we investigated whether HPV16-specific antibodies present in FVU samples retain their neutralizing capacity by using pseudovirion-based neutralization assays. Paired FVU and serum samples (vaccinated n = 25, unvaccinated n = 25, aged 18–25) were analyzed using two orthogonal pseudovirion-based neutralization assays, one using fluorescence microscopy and the other using luminescence-based spectrophotometry. Results were compared with HPV16-specific IgG concentrations and correlations between neutralizing antibodies in FVU and serum were explored. The study demonstrated the presence of neutralizing antibodies in FVU using both pseudovirion-based neutralization assays, with the luminescence-based assay showing higher sensitivity for FVU samples, while the fluorescence microscopy-based assay exhibited better specificity for serum and overall higher reproducibility. High Spearman correlation values were calculated between HPV16-IgG and HPV16-neutralizing antibodies for both protocols (rs: 0.54–0.94, p |
| Databáze: | Directory of Open Access Journals |
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