Tag: ACE2

A potent, broadly protective vaccine against SARS-CoV-2 variants of concern

Cells and viruses hACE2 expressing BHK-21 (BHK-21-hACE2) and Vero-E6 cells were provided by State Key Laboratory of Virology, Wuhan University. Vero-E6 cells were cultured in DMEM (Gibco, Cat.11995–040) supplemented with 10% fetal bovine serum (Gibco, Cat.10091–148) and 1% penicillin and streptomycin solution (BasalMedia, Cat.S110JV) at 37°C with 5% CO2. BHK-21-hACE2…

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Breadth of SARS-CoV-2 neutralization and protection induced by a nanoparticle vaccine

Animals and immunizations The study protocol and all veterinarian procedures were approved by the Bioqual IACUC per a memorandum of understanding with the Duke IACUC, and were performed based on standard operating procedures. Macaques studied were housed and maintained in an Association for Assessment and Accreditation of Laboratory Animal Care-accredited…

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Three-dimensional in vitro model to reproduce COVID-19-induced endothelial dysfunction

In a recent study posted to the bioRxiv* preprint server, researchers developed a three-dimensional (3D) in vitro tissue model to assess the effects of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) on the vascular endothelial cells. Study: SARS-CoV-2 spike protein induces endothelial dysfunction in 3D engineered vascular networks. Image Credit:…

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Research Shows That Mucus Is Your Body’s First Line Of Defense Against Viruses

Ill African American girl blowing a nose at home while her mother is consoling her. getty This story on CRISPR is part of an extended series on Regenerative Medicine. For other stories on this topic see williamhaseltine.com and search for Regenerative Medicine. My definition of Regenerative Medicine is any medical…

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Pre-existing anti-SARS-CoV-2 immunity decreases viral spread but increase SARS-CoV-2 Omicron competitiveness in hamsters

In a recent study posted to the bioRxiv* preprint server, researchers assessed the impact of pre-existing immunity against severe acute respiratory coronavirus 2 (SARS-CoV-2) acquired by previous infections (PI) or coronavirus disease 2019 (COVID-19) vaccination on the transmission of SARS-CoV-2 variants of concern (VOCs) such as Delta and Omicron. Study:…

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A Novel COVID-19 Vaccine Using Modified Bacterial DNA

A visualization of the immune engineering process, from structure selection to authentic virus neutralization. Upper left: Analysis of interaction between SARS-CoV-2 and the ACE2 receptor revealed numerous contact residues along the receptor binding motif (RBM) ridgeline. Upper right: Focus was placed on residues comprising the FNCY patch, a conserved site…

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The potential of circular RNA COVID-19 vaccines

A new set of strategies is being investigated to combat coronavirus disease 2019 (COVID-19), as well as other viral pandemics in the future. This includes the use of new antigens, adjuvants, and delivery systems. A new one MedComm The journal study describes the potential use of circular ribonucleic acid (circRNA)…

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New ‘Ramp Atlas’ Aims to Improve Understanding of Gene Expression

CHICAGO – A first-of-its-kind atlas of “ramp sequences” near the 5′ end of highly expressed genes promises to help researchers better understand gene expression and disease development. Bioinformaticians and computational biologists at the University of Kentucky and Brigham Young University recently released the Ramp Atlas, a compendium of 18,388 tissue-…

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SARS-Cov2 and Crispr-Cas Gene Assignment – Cracking the Code for SARS-Cov2 and the Discovery of

Cracking the Code for SARS-Cov2 and the Discovery of CRISPR-Cas Gene Editing Mechanism SARS-Cov2 1.) Describe the morphological structure of SARS-Cov2 virus. – According to studies through the use of Electron microscopy, the structure of SARS-CoV-2 is speculated to be similar to that of SARS-CoV with a virion size ranging…

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Researchers identify cellular serpins as host factors that restrict SARS-CoV-2 infection

The mass vaccination programs against coronavirus disease 2019 (COVID-19) received massive media attention and were widely credited for reducing the threat of the disease. However, many countries struggle to obtain enough doses to immunize their population, and some immunocompromised individuals are less protected by the vaccines. There is still a…

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Mass Vaccination Triggers Spike in Cases, Deaths

Researchers have confirmed that it’s not the SARS-CoV-2 virus itself damaging the body’s cells, it’s the spike protein. And it does this by binding ACE2, which can lead to mitochondrial damage. STORY AT-A-GLANCE Doctors for COVID Ethics have been warning about the potential for gene-based COVID-19 “vaccines” to cause blood…

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Recombinant Human ACE2 Protein, HEK293 Cells, hFc Tag, 10108-H02H-B

ACE2 Protein, Human, Recombinant (hFc Tag), Biotinylated: Product Information Purity > 95 % as determined by SDS-PAGE. Activity Testing in progress Protein Construction A DNA sequence encoding the extracellular domain (Met 1-Ser 740) of human ACE2 precursor (NP_068576.1) was expressed with the fused Fc region of human IgG1…

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Study explores SARS-CoV-2 Omicron variant and infected colon epithelial cells

In a recent study posted to the bioRxiv* preprint server, researchers assessed the impact of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron variant on infected human cells and organs. Study: SARS-CoV-2 Omicron BA.1 variant infection of human colon epithelial cells. Image Credit: PHOTOCREO Michal Bednarek/Shutterstock Various studies have…

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New bioinformatics method to analyze viral sgRNA

Single guide ribonucleic acid (sgRNA) molecules are produced by discontinuous transcription, in which viral RNA-dependant RNA polymerase pauses early negative-sense RNA synthesis and then jumps to the other end of the genome. The specifics of this process are still not fully understood. Since sgRNAs can play an important role in…

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Study finds sarbecoviruses circulating in wildlife outside Asia can infect human cells

The coronavirus disease 2019 (COVID-19) pandemic caused by the severe acute respiratory syndrome-associated coronavirus 2 (SARS-CoV-2) and past SARS-CoV outbreaks were a result of zoonotic spillover of sarbecoviruses from animals to humans. Although most of the animal sarbecoviruses do not infect eukaryotic cells, clade 4 sarbecoviruses recently found in China…

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Exploiting genomic surveillance to map the spatio-temporal dispersal of SARS-CoV-2 spike mutations in Belgium across 2020

1. Dudas, G. et al. Virus genomes reveal factors that spread and sustained the Ebola epidemic. Nature 544, 309–315 (2017). ADS  CAS  Article  Google Scholar  2. Kafetzopoulou, L. E. et al. Metagenomic sequencing at the epicenter of the Nigeria 2018 Lassa fever outbreak. Science 363, 74–77 (2019). ADS  CAS  Article …

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