Lipid nanoparticle (LNP)-formulated nucleoside-modified mRNA vaccines have proven to be very successful in the fight against the coronavirus disease 2019 (COVID-19) pandemic. They are effective, safe, and can be produced in large quantities. However, the long-term storage of mRNA-LNP vaccines without freezing is still a challenge. Here, we demonstrate that nucleoside-modified mRNA-LNPs can be lyophilized, and the physicochemical properties of the lyophilized material do not significantly change for 12 weeks after storage at room temperature and for at least 24 weeks after storage at 4°C. Importantly, we show in comparative mouse studies that lyophilized firefly luciferase-encoding mRNA-LNPs maintain their high expression, and no decrease in the immunogenicity of a lyophilized influenza virus hemagglutinin-encoding mRNA-LNP vaccine was observed after 12 weeks of storage at room temperature or for at least 24 weeks after storage at 4°C. Our studies offer a potential solution to overcome the long-term storage-related limitations of nucleoside-modified mRNA-LNP vaccines.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8815268 | PMC |
| http://dx.doi.org/10.1016/j.ymthe.2022.02.001 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Expression and purification of E140 protein antigen fragments of Plasmodium vivax and Plasmodium berghei for serological assays.
FEBS Open Bio
January 2025
Synthetic and Systems Biology Unit, Institute of Biochemistry, HUN-REN Biological Research Centre, Szeged, Hungary.
Malaria, a life-threatening disease caused by Plasmodium parasites, continues to pose a significant global health threat, with nearly 250 million infections and over 600 000 deaths reported annually by the WHO. Fighting malaria is particularly challenging partly due to the complex life cycle of the parasite. However, technological breakthroughs such as the development of the nucleoside-modified mRNA lipid nanoparticle (mRNA-LNP) vaccine platform, along with the discovery of novel conserved Plasmodium antigens such as the E140 protein, present new opportunities in malaria prevention.
View Article and Find Full Text PDFA nucleoside-modified rabies mRNA vaccine induces long-lasting and comprehensive immune responses in mice and non-human primates.
Mol Ther
December 2024
School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211112, China; Institute of Translational Medicine, China Pharmaceutical University, Nanjing 211112, China. Electronic address:
Rabies is a lethal zoonotic infectious disease. Vaccines against the rabies virus have significantly reduced the number of deaths from the disease. However, all licensed rabies vaccines are inactivated vaccines, which have limited immunogenicity and complicated immunization procedures.
View Article and Find Full Text PDFSTING-Activating Polymers Boost Lymphatic Delivery of mRNA Vaccine to Potentiate Cancer Immunotherapy.
Adv Mater
December 2024
Department of Diagnostic Radiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 119074, Singapore.
The unprecedented success of mRNA vaccines against COVID-19 has inspired scientists to develop mRNA vaccines for cancer immunotherapy. However, using nucleoside modified mRNA as vaccine, though evading innate immune toxicity, diminishes its therapeutic efficacy for cancers. Here, we report a polyvalent stimulator of interferon genes (STING) activating polymer (termed as PD) to bolster the immunogenicity of mRNA vaccine.
View Article and Find Full Text PDFThe COVID-19 mRNA vaccines demonstrated the power of mRNA medicines. Despite advancements in sequence design, evidence regarding the preferential use of synonymous codons on cellular stress and innate immune responses is lacking. To this end, we developed a proprietary codon optimality matrix to re-engineer the coding sequences of three luciferase reporters.
View Article and Find Full Text PDFInflammatory Pseudotumor of the Spleen in a Patient With Psoriatic Arthritis: A Diagnostic Challenge in the COVID-19 Era.
Cureus
November 2024
Department of Pathology (Laboratory of General Pathology & Pathological Anatomy), Aristotle University of Thessaloniki, Thessaloniki, GRC.
The baseline inflammatory microenvironment in various organs of patients, which is shaped by pre-existing conditions and circulating drugs at the time before viral antigen exposure, may affect the severity of coronavirus disease-19 (COVID-19) infection and the nature of its complications. Inflammatory pseudotumor (IPT) of the spleen may represent one such complication that merits further investigation. We describe the case of a patient, who was under long-term treatment with a tumor necrosis factor inhibitor (TNFi), for psoriatic arthritis (PsA) and developed an inflammatory mass in the spleen, accompanied by systemic manifestations.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!