A Preclinical Immunogenicity Study of the Recombinant Human Papillomavirus Nine-Valent Virus-like Particle Vaccine

Bibliographic Details
Title: A Preclinical Immunogenicity Study of the Recombinant Human Papillomavirus Nine-Valent Virus-like Particle Vaccine
Authors: Dan Xu, Jia-Dai Li, Jiao An, Xin-Xing Ma, Xiao-Liang Wang, Zheng Zhou, Hai-Ping Liu, Mei-Jun Diao, Yuan-Xiang Jiang, Ling-Yun Zhou, Xin Tong, Chen-Liang Zhou
Source: Vaccines, Vol 12, Iss 12, p 1356 (2024)
Publisher Information: MDPI AG, 2024.
Publication Year: 2024
Collection: LCC:Medicine
Subject Terms: human papillomavirus (HPV), virus-like particles (VLPs), vaccines, immunogenicity, protective efficacy, Medicine
More Details: Background: Cervical cancer is associated with persistent infection of high-risk human papillomaviruses (HPVs). Prophylactic HPV vaccines have been recommended and have significant efficacy in preventing cervical cancer. Multivalent HPV vaccines have a better preventative effect on HPV-related diseases. However, there is currently only one nine-valent HPV vaccine on the market: Gardasil® 9. The development of new HPV vaccines is still urgent in order to achieve the goal of eliminating cervical cancer as proposed by the WHO. Methods: In this study, we developed a nine-valent recombinant HPV virus-like particle (VLP) vaccine (HPV-9 vaccine) containing HPV type 6, 11, 16, 18, 31, 33, 45, 52, and 58 antigens, with an adjuvant of aluminum phosphate (AlPO4). The type-specific L1 proteins were recombinantly expressed using Pichia pastoris, followed by self-assembly into VLPs. Immunogenicity studies of the HPV-9 vaccine were performed using rodents (mice and rats) and non-human primates (macaques) as animal models. Results: Immunogenicity studies showed that the HPV-9 vaccine is able to elicit a robust and long-lasting neutralizing antibody response in rodents (mice and rats) and non-human primates (cynomolgus macaque) models. The HPV-9 vaccine shows immunogenicity comparable to that of Walrinvax® and Gardasil® 9. Conclusions: In summary, this study provides a comprehensive investigation of the immunogenicity of the HPV-9 vaccine, including its immune persistence. These findings, derived from using models of diverse animal species, contribute valuable insights into the potential efficacy of the vaccine candidate in clinical settings.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2076-393X
Relation: https://www.mdpi.com/2076-393X/12/12/1356; https://doaj.org/toc/2076-393X
DOI: 10.3390/vaccines12121356
Access URL: https://doaj.org/article/ae7419693a7c4afab93167371bf1a15c
Accession Number: edsdoj.7419693a7c4afab93167371bf1a15c
Database: Directory of Open Access Journals
More Details
ISSN:2076393X
DOI:10.3390/vaccines12121356
Published in:Vaccines
Language:English