We recently characterized three novel alphaviruses isolated from mosquitoes captured in New South Wales, Australia. Initial cross-neutralization studies revealed antigenic similarity to the Sindbis virus (SINV)-like Whataroa virus (WHAV), heretofore found only in New Zealand. Nucleotide sequence analysis showed that the WHAV-like viruses shared >99% nucleotide sequence similarity with each other, and 96-97% similarity with prototype WHAV. Enzyme-linked immunosorbent assay reactions of a panel of monoclonal antibodies to SINV showed that the novel WHAV-like viruses displayed identical binding patterns and were antigenically distinct from all SINV isolates examined. Although these viruses displayed a similar binding pattern to prototype WHAV, three monoclonal antibodies discriminated them from the New Zealand virus. Our results suggest that these novel alphaviruses are antigenic variants of WHAV and represent the first reported isolations of this virus from outside New Zealand. The monoclonal antibodies used in this study will be useful for typing new SINV and SINV-like isolates.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Unveiling the potential of spirulina algal extract as promising antibacterial and antibiofilm agent against carbapenem-resistant Klebsiella pneumoniae: in vitro and in vivo study.
Microb Cell Fact
January 2025
Pharmaceutical Microbiology Department, Faculty of Pharmacy, Tanta University, Tanta, 31527, Egypt.
Carbapenem-resistant Klebsiella pneumoniae poses a severe risk to global public health, necessitating the immediate development of novel therapeutic strategies. The current study aimed to investigate the effectiveness of the green algae Arthrospira maxima (commercially known as Spirulina) both in vitro and in vivo against carbapenem-resistant K. pneumoniae.
View Article and Find Full Text PDFMalaria monoclonals block brain binding.
Trends Parasitol
January 2025
Department of Infectious Diseases, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne 3000, Australia; Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne 3000, Australia.
In Plasmodium falciparum malaria, infected cells accumulate in blood vessels of organs, including the brain. Recently, Reyes et al. identified monoclonal antibodies that stop infected cells from binding to the endothelial protein C receptor (EPCR) in a model of brain blood vessels.
View Article and Find Full Text PDFProtein concentration and analyzing charge variants in a co-formulation comprising three monoclonal antibodies: A cation-exchange chromatography approach.
Int J Pharm
January 2025
BioDev Drug Product Development Department, WuXi Biologics, 190 Hedan Road, Shanghai 200131, China. Electronic address:
In the realm of therapeutic antibodies, co-formulations comprising two or more monoclonal antibodies (mAbs) have emerged as a promising strategy, offering enhanced treatment efficacy, improved efficiency, and prolonged intellectual property protection. These advantages have sparked significant interest among both patients and pharmaceutical companies. However, the quantification and analysis of individual mAbs within such co-formulations pose a substantial challenge due to their similar physicochemical properties.
View Article and Find Full Text PDFImpact of galectin-1's redox state on its lectin activity and monomer-dimer equilibrium. Focusing on oxidized Gal-1.
Int J Biol Macromol
January 2025
Institute of Biophysics, The Czech Academy of Sciences, v.v.i., Královopolská 135, 61200 Brno, Czech Republic. Electronic address:
Galectin-1 (Gal-1) displays unique sensitivity to oxidative inactivation which appears critical in regulating its spatial and temporal activity. The two physicochemical states, i.e.
View Article and Find Full Text PDFDevelopment and Selection of Candidate Monoclonal Antibodies for the Detection of Clostridium botulinum Neurotoxin Serotype B Light Chain.
Protein Expr Purif
January 2025
Institute of Tropical Medicine, Joint Vietnam-Russia Tropical Science and Technology Research Center.
Botulinum neurotoxin, produced by the bacterium Clostridium botulinum, causes botulism, a severe, rapidly progressing, and potentially fatal condition. Swift detection of the toxin and timely administration of antitoxin antibodies are critical for effective treatment. The current standard for Botulinum toxin testing is the mouse lethality assay, but this method is time-consuming and requires live animals.
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!