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Comparison of Three Chimeric Zika Vaccine Prototypes Developed on the Genetic Background of the Clinically Proven Live-Attenuated Japanese Encephalitis Vaccine SA-14-2.
Int J Mol Sci
December 2024
Department of Animal Dairy and Veterinary Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT 84322, USA.
Zika virus (ZIKV) is a medically important mosquito-borne orthoflavivirus, but no vaccines are currently available to prevent ZIKV-associated disease. In this study, we compared three recombinant chimeric viruses developed as candidate vaccine prototypes (rJEV/ZIKV, rJEV/ZIKV, and rJEV/ZIKV), in which the two neutralizing antibody-inducing prM and E genes from each of three genetically distinct ZIKV strains were used to replace the corresponding genes of the clinically proven live-attenuated Japanese encephalitis virus vaccine SA-14-2 (rJEV). In WHO-certified Vero cells (a cell line suitable for vaccine production), rJEV/ZIKV exhibited the slowest viral growth, formed the smallest plaques, and displayed a unique protein expression profile with the highest ratio of prM to cleaved M when compared to the other two chimeric viruses, rJEV/ZIKV and rJEV/ZIKV, as well as their vector, rJEV.
View Article and Find Full Text PDFCo-infection of nervous necrosis virus and Vibrio harveyi increased mortality and worsened the disease severity in the orange-spotted grouper (Epinephelus coioides).
Fish Shellfish Immunol
January 2025
College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute, Guangzhou, 511464, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China. Electronic address:
Co-infections of different pathogenic microorganisms usually cause complex effects, and receive more attention. Red-grouper nervous necrosis virus (RGNNV) and Vibrio are the common viral and bacterial pathogens of fish, and are often detected simultaneously in diseased fish. However, the understanding of co-infection of RGNNV and Vibrio is still unclear.
View Article and Find Full Text PDFRare of Gaucher's Disease Complication of Splenic Multiple Gaucheroma.
Endocr Metab Immune Disord Drug Targets
January 2025
Department of Endocrinology and Metabolic Diseases, Erciyes University Faculty of Medicine, Kayseri, Turkey.
Background: Gaucheromas, pseudotumors composed of Gaucher cells, are rare complications of Gaucher's Disease (GD). They are usually seen in patients receiving enzyme replacement. Surgery is generally not recommended for these benign masses in treatment management.
View Article and Find Full Text PDFCircular mRNA Vaccine against SARS-COV-2 Variants Enabled by Degradable Lipid Nanoparticles.
ACS Appl Mater Interfaces
January 2025
Suzhou CureMed Biopharma Technology Co., Ltd., Suzhou 215125, China.
The emergence of mRNA vaccines offers great promise and a potent platform in combating various diseases, notably COVID-19. Nevertheless, challenges such as inherent instability and potential side effects of current delivery systems underscore the critical need for the advancement of stable, safe, and efficacious mRNA vaccines. In this study, a robust mRNA vaccine (cmRNA-1130) eliciting potent immune activation has been developed from a biodegradable lipid with eight ester bonds in the branched tail (AX4) and synthetic circular mRNA (cmRNA) encoding the trimeric Delta receptor binding domain of the SARS-CoV-2 spike protein.
View Article and Find Full Text PDFEffective Mucosal Adjuvantation of the Intranasal Enterovirus A71 Vaccine With Zymosan.
Immunology
January 2025
Graduate Institute of Immunology, College of Medicine, National Taiwan University, Taipei, Taiwan.
Enterovirus A71 (EV-A71) has caused hand, foot, and mouth disease with an increased prevalence of neurological complications and acute mortality, threatening young children around the globe. By provoking mucosal immunity, intranasal vaccination has been suggested to prevent EV-A71 infection. However, antigens delivered via the nasal route usually fail to induce a protective memory response.
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