Over the past two decades, scientific and technological advancements have revealed messenger ribonucleic acid (mRNA)-based vaccines as a well-tolerated and effective platform to combat infectious disease. The potential of mRNA-based vaccines was epitomized during the severe acute respiratory syndrome coronavirus 2 pandemic, wherein mRNA-based vaccines were rapidly developed and found highly efficacious with an acceptable safety profile. These properties together with the capability to quickly address pathogens of pandemic potential, pathogens with complex antigens, and multiple pathogens within a single vaccine have revitalized the field, and multiple mRNA-based vaccines have now entered clinical development. This review summarizes current mRNA-based vaccine technology, perspectives on ongoing clinical studies, and future prospects for the field.
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http://dx.doi.org/10.1016/j.coi.2022.102214 | DOI Listing |
EBioMedicine
January 2025
Univ. Grenoble Alpes, Institute for Advanced Biosciences, Inserm U 1209, CNRS UMR, Grenoble, 5309, France.
Background: mRNA-based cancer vaccines show promise in triggering antitumour immune responses. To combine them with existing immunotherapies, the intratumoral immune microenvironment needs to be deeply characterised. Here, we test nanostructured lipid carriers (NLCs), the so-called Lipidots®, for delivering unmodified mRNA encoding Ovalbumin (OVA) antigen to elicit specific antitumour responses.
View Article and Find Full Text PDFCurr Top Med Chem
January 2025
Australasian Nanoscience and Nanotechnology Initiative (ANNI), Monash University LPO, Clayton, VIC 3168, Australia.
Ongoing research and development efforts are currently focused on creating COVID-19 vaccines using a variety of platforms. Among these, mRNA technology stands out as a cuttingedge method for vaccine development. There is a growing public awareness of mRNA and its potential in vaccine development.
View Article and Find Full Text PDFNucleic Acids Res
January 2025
Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, The College of Life Sciences, Sichuan University, 24 South Section 1, 1st Ring Road, Chengdu, Sichuan 610064, P.R. China.
Region-specific RNA modifications are crucial for advancing RNA research and therapeutics, including messenger RNA (mRNA)-based vaccines and immunotherapy. However, the predominant method, synthesizing regionally modified mRNAs with short single-stranded DNA (ssDNA) splints, encounters challenges in ligating long mRNA fragments due to the formation of RNA self-folded complex structures. To address this issue, we developed an efficient strategy using an easily obtained long double-stranded DNA (dsDNA) as a ligation splint after in situ denaturing, while parts of this dsDNA are the templates for transcribing mRNA fragments.
View Article and Find Full Text PDFVaccines (Basel)
December 2024
Department of Microbiology, Clínica Universidad de Navarra, 31008 Pamplona, Spain.
Background/objectives: The emergence of the Omicron variant has complicated COVID-19 control and prompted vaccine updates. Recent studies have shown that a fourth dose significantly protects against infection and severe disease, though long-term immunity data remain limited. This study aimed to assess Anti-S-RBD antibodies and interferon-γ levels in healthcare workers 12 months after receiving bivalent Original/Omicron BA.
View Article and Find Full Text PDFVaccines (Basel)
December 2024
BRIC-Translational Health Science and Technology Institute, Faridabad 21001, India.
: The COVID-19 pandemic prompted unprecedented vaccine development efforts against SARS-CoV-2. India, which was one of the countries most impacted by COVID-19, developed its indigenous vaccine in addition to utilizing the ones developed by other countries. While antibody levels and neutralizing antibody titres are considered initial correlates of immune protection, long-term protection from the pathogen relies on memory B and T cells and their recall responses.
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