Researchers explain how viral protein promotes deadly infection by Nipah and Hendra viruses

(Georgia State University) Researchers have identified how a viral protein, which plays a major role in causing deadly Nipah and Hendra virus infections, targets a critical function in human cells to suppress immune responses and promote fatal disease.
Source: EurekAlert! - Medicine and Health - Category: International Medicine & Public Health Source Type: news

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ord M Abstract The anti-malarial drug Chloroquine (CQ) and its derivative hydroxychloroquine have shown antiviral activities in vitro against many viruses, including coronaviruses, dengue virus and the biosafety level 4 Nipah and Hendra paramyxoviruses. The in vivo efficacy of CQ in the treatment of COVID-19 is currently a matter of debate. CQ is a lysosomotrophic compound that accumulates in lysosomes, as well as in food vacuoles of Plasmodium falciparum. In the treatment of malaria, CQ impairs the digestion and growth of the parasite by increasing the pH of the food vacuole. Similarly, it is assumed that the ant...
Source: Biochimie - Category: Biochemistry Authors: Tags: Biochimie Source Type: research
From the Nipah Virus International Conference in Singapore, Vincent speaks with meeting participants about the history of the first Nipah virus outbreak, lessons learned from Hendra virus, surveillance of bats for viruses, and the development of a vaccine. Hosts: Vincent Racaniello Guests: John Mackenzie, Jon Epstein, Eun-Chung Park, and Linfa Wang Subscribe (free): iTunes, Google Podcasts, RSS, email Become a patron of TWiV! Intro music is by Ronald Jenkees. Send your virology questions and comments to twiv@microbe.tv
Source: This Week in Virology - MP3 Edition - Category: Virology Authors: Source Type: podcasts
From the Nipah Virus International Conference in Singapore, Vincent speaks with Richard Hatchett, CEO of CEPI, about its mission to stimulate and accelerate the development of vaccines against emerging infectious diseases. Click arrow to play Download TWiV 612 (87 MB .mp3, 143 min) Subscribe (free): iTunes, Google Podcasts, RSS, email Become a patron of TWiV! Show notes at microbe.tv/twiv  
Source: virology blog - Category: Virology Authors: Tags: This Week in Virology CEPI ebolavirus Hendra virus Nipah virus pandemic SARS-CoV vaccine vaccine platform viral viruses Source Type: blogs
unjie Xu Wei Chen The genus Henipavirus (HNVs) includes two fatal viruses, namely Nipah virus (NiV) and Hendra virus (HeV). Since 1994, NiV and HeV have been endemic to the Asia–Pacific region and responsible for more than 600 cases of infections. Two emerging HNVs, Ghana virus (GhV) and Mojiang virus (MojV), are speculated to be associated with unrecognized human diseases in Africa and China, respectively. Despite many efforts to develop vaccines against henipaviral diseases, there is presently no licensed human vaccine. As HNVs are highly pathogenic and diverse, it is necessary to develop universal vaccin...
Source: Viruses - Category: Virology Authors: Tags: Article Source Type: research
Research in the last decade has uncovered many new paramyxoviruses, airborne agents that cause epidemic diseases in animals including humans. Most paramyxoviruses enter epithelial cells of the airway using sialic acid as a receptor and cause only mild disease. However, others cross the epithelial barrier and cause more severe disease. For some of these viruses, the host receptors have been identified, and the mechanisms of cell entry have been elucidated. The tetrameric attachment proteins of paramyxoviruses have vastly different binding affinities for their cognate receptors, which they contact through different binding s...
Source: Journal of Biological Chemistry - Category: Chemistry Authors: Tags: JBC Reviews Source Type: research
The monoclonal antibody m102.4, being developed to prevent and treat Hendra and Nipah virus infection, was well tolerated and safe in a first-in-human study.Reuters Health Information
Source: Medscape Allergy Headlines - Category: Allergy & Immunology Tags: Infectious Diseases News Source Type: news
They are considered the probable source of the coronavirus outbreak spreading from China. It turns out that they may have an immune system that lets them coexist with many disease-causing viruses.
Source: NYT Health - Category: Consumer Health News Authors: Tags: Bats Viruses Epidemics Coronavirus (2019-nCoV) Marburg Virus Nipah Virus Hendra Virus SARS (Severe Acute Respiratory Syndrome) MERS (Middle East Respiratory Syndrome) Immune System Cell Host and Microbe (Journal) EcoHealth Alliance Source Type: news
This week I attended the Nipah Virus International Conference in Singapore, marking the discovery of the virus 20 years ago. It’s an opportune time to recall the events around the emergence of this deadly pathogen. An outbreak of respiratory disease and encephalitis in pigs during 1998 took place in Ipoh City of Perak state in […]
Source: virology blog - Category: Virology Authors: Tags: Basic virology Information encephalitis fruit bat Hendra virus henipavirus Nipah virus pandemic Pteropus respiratory disease spillover viral viruses Source Type: blogs
Cedar virus (CedV) is a bat-borne henipavirus related to Nipah virus (NiV) and Hendra virus (HeV), zoonotic agents of fatal human disease. CedV receptor-binding protein (G) shares only ∼30% sequence identity with those of NiV and HeV, although they can all use ephrin-B2 as an entry receptor. We demonstrate that...
Source: Proceedings of the National Academy of Sciences - Category: Science Authors: Tags: Biological Sciences Source Type: research
Abstract Maintenance of Hendra virus (HeV) in pteropid bat populations has been associated with spillover events in horses, humans and dogs. Experimental studies have demonstrated infections for several other species including guinea pigs, cats and ferrets. The criteria of a sensitive and specific serological test that is effective for a range of species, but which does not require use of live virus, has not been satisfactorily addressed by currently available tests. We have evaluated the use of two HeV neutralizing monoclonal antibodies (mAbs) in a blocking format enzyme-linked immunosorbent assay (bELISA) to det...
Source: Journal of Virological Methods - Category: Virology Authors: Tags: J Virol Methods Source Type: research
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