Publications by authors named "S Mamputha"

Article Synopsis
  • A revolutionary multivalent vaccine for African horse sickness virus (AHSV) has been developed, designed to protect against all nine serotypes using plant-produced virus-like particles (VLPs) and viral protein 2 (VP2).
  • In trials with interferon α/β receptor knock-out mice, the nonavalent vaccine outperformed the current commercial vaccine, demonstrating high neutralizing antibody levels and a strong immune response.
  • This research marks the first significant evidence of a nonavalent VP2-based vaccine's effectiveness, showcasing its potential safety and efficacy for future use in combating AHSV outbreaks.
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Next generation vaccines have the capability to contribute to and revolutionise the veterinary vaccine industry. African horse sickness (AHS) is caused by an arbovirus infection and is characterised by respiratory distress and/or cardiovascular failure and is lethal to horses. Mandatory annual vaccination in endemic areas curtails disease occurrence and severity.

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RNA binding proteins (RBPs) interact with cellular mRNAs, controlling various steps throughout the lifetime of these transcripts, including transcription, cellular transport, subcellular localization, translation and degradation. In addition to binding mRNA transcripts, a growing number of RBPs are shown to bind long noncoding RNAs (lncRNAs), controlling key cellular processes, including gene expression and translation of proteins. Current methodologies aimed at identifying and characterizing protein binding partners of specific RNAs of interest typically rely on tagging of the RNA with affinity aptamers, using transcribed RNA or immobilized oligonucleotides to capture RNA-protein complexes under native conditions.

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Bluetongue (BT) is a hemorrhagic non-contagious, biting midge-transmitted disease of wild and domestic ruminants that is caused by bluetongue virus (BTV). Annual vaccination plays a pivotal role in BT disease control in endemic regions. Due to safety concerns of the current BTV multivalent live attenuated vaccine (LAV), a safe efficacious new generation subunit vaccine such as a plant-produced BT virus-like particle (VLP) vaccine is imperative.

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Aims: To investigate the production of soluble cross-reacting material 197 (CRM ) in Escherichia coli, a safe and effective T-cell-dependent protein carrier for polysaccharides used in the manufacture and application of multivalent conjugate vaccines.

Methods And Results: The use of co-expression of a sulphydryl oxidase (SOX) and protein disulphide isomerase for the production of soluble CRM in E. coli is described.

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