The recent advances in vaccine adjuvants

Vaccine adjuvants, as key components in enhancing vaccine immunogenicity, play a vital role in modern vaccinology. This review systematically examines the historical evolution and mechanisms of vaccine adjuvants, with particular emphasis on innovative advancements in aluminum-based adjuvants, emulsi...

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Main Authors: Jiayin Xing, Xiangxiang Zhao, Xiaotian Li, Ren Fang, Mingrui Sun, Yang Zhang, Ningning Song
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-05-01
Series:Frontiers in Immunology
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Online Access:https://www.frontiersin.org/articles/10.3389/fimmu.2025.1557415/full
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author Jiayin Xing
Xiangxiang Zhao
Xiaotian Li
Ren Fang
Mingrui Sun
Yang Zhang
Ningning Song
author_facet Jiayin Xing
Xiangxiang Zhao
Xiaotian Li
Ren Fang
Mingrui Sun
Yang Zhang
Ningning Song
author_sort Jiayin Xing
collection DOAJ
description Vaccine adjuvants, as key components in enhancing vaccine immunogenicity, play a vital role in modern vaccinology. This review systematically examines the historical evolution and mechanisms of vaccine adjuvants, with particular emphasis on innovative advancements in aluminum-based adjuvants, emulsion-based adjuvants, and nucleic acid adjuvants (e.g., CpG oligonucleotides). Specifically, aluminum adjuvants enhance immune responses through particle formation/antigen adsorption, inflammatory cascade activation, and T-cell stimulation. Emulsion adjuvants amplify immunogenicity via antigen depot effects and localized inflammation, while nucleic acid adjuvants like CpG oligonucleotides directly activate B cells and dendritic cells to promote Th1-type immune responses and memory T-cell generation. The article further explores the prospective applications of these novel adjuvants in combating emerging pathogens (including influenza and SARS-CoV-2), particularly highlighting their significance in improving vaccine potency and durability. Moreover, this review underscores the critical importance of adjuvant development in next-generation vaccine design and provides theoretical foundations for creating safer, effective adjuvant.
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publishDate 2025-05-01
publisher Frontiers Media S.A.
record_format Article
series Frontiers in Immunology
spelling doaj-art-5ef2f73648734c7581a835dff84e948c2025-08-20T02:15:24ZengFrontiers Media S.A.Frontiers in Immunology1664-32242025-05-011610.3389/fimmu.2025.15574151557415The recent advances in vaccine adjuvantsJiayin XingXiangxiang ZhaoXiaotian LiRen FangMingrui SunYang ZhangNingning SongVaccine adjuvants, as key components in enhancing vaccine immunogenicity, play a vital role in modern vaccinology. This review systematically examines the historical evolution and mechanisms of vaccine adjuvants, with particular emphasis on innovative advancements in aluminum-based adjuvants, emulsion-based adjuvants, and nucleic acid adjuvants (e.g., CpG oligonucleotides). Specifically, aluminum adjuvants enhance immune responses through particle formation/antigen adsorption, inflammatory cascade activation, and T-cell stimulation. Emulsion adjuvants amplify immunogenicity via antigen depot effects and localized inflammation, while nucleic acid adjuvants like CpG oligonucleotides directly activate B cells and dendritic cells to promote Th1-type immune responses and memory T-cell generation. The article further explores the prospective applications of these novel adjuvants in combating emerging pathogens (including influenza and SARS-CoV-2), particularly highlighting their significance in improving vaccine potency and durability. Moreover, this review underscores the critical importance of adjuvant development in next-generation vaccine design and provides theoretical foundations for creating safer, effective adjuvant.https://www.frontiersin.org/articles/10.3389/fimmu.2025.1557415/fulladjuvantsdelivery systemsimmunostimulantsvaccinecombinatorial adjuvant strategies
spellingShingle Jiayin Xing
Xiangxiang Zhao
Xiaotian Li
Ren Fang
Mingrui Sun
Yang Zhang
Ningning Song
The recent advances in vaccine adjuvants
Frontiers in Immunology
adjuvants
delivery systems
immunostimulants
vaccine
combinatorial adjuvant strategies
title The recent advances in vaccine adjuvants
title_full The recent advances in vaccine adjuvants
title_fullStr The recent advances in vaccine adjuvants
title_full_unstemmed The recent advances in vaccine adjuvants
title_short The recent advances in vaccine adjuvants
title_sort recent advances in vaccine adjuvants
topic adjuvants
delivery systems
immunostimulants
vaccine
combinatorial adjuvant strategies
url https://www.frontiersin.org/articles/10.3389/fimmu.2025.1557415/full
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