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Inhalable Nanobody (PiN-21) prevents and treats SARS-CoV-2 infections in Syrian hamsters at ultra-low doses

Globally, there is an urgency to develop effective, low-cost therapeutic interventions for coronavirus disease 2019 (COVID-19). We previously generated the stable and ultrapotent homotrimeric Pittsburgh inhalable Nanobody 21 (PiN-21). Using Syrian hamsters that model moderate to severe COVID-19 disease, we demonstrate the high efficacy of PiN-21 to prevent and treat SARS-CoV-2 infection. Intranasal delivery of PiN-21 at 0.6 mg/kg protects infected animals from weight loss and substantially reduces viral burdens in both lower and upper airways compared to control. Aerosol delivery of PiN-21 facilitates deposition throughout the respiratory tract and dose minimization to 0.2 mg/kg. Inhalation treatment quickly reverses animals’ weight loss after infection, decreases lung viral titers by 6 logs leading to drastically mitigated lung pathology, and prevents viral pneumonia. Combined with the marked stability and low production cost, this innovative therapy may provide a convenient and cos ....

United States , Sakura Finetek , Akoya Biosciences , Economic Development , Accreditation Of Laboratory Animal Care , Commonwealth Of Pennsylvania Department Community , Henryl Hillman Foundation , University Of Pittsburgh , Richard King Mellon Foundation , Vaccine Research , Association For Assessment , Laboratory Animals , National Institutes Of Health , University Of Pittsburgh Center , University Of Pittsburgh Institutional Animal Care , Public Health Services Policy On Humane Care , Regional Biocontainment Laboratory , Zymo Research , Using Syrian , Laboratory Animal , National Institutes , Animal Welfare Act , Public Health Services Policy , Humane Care , Pittsburgh Institutional Animal Care , Use Committee ,

University of Florida animal research program under scrutiny for alleged mistreatment of cats, lab rats

Frontiers | Quantification of Huntington's Disease Related Markers in the R6/2 Mouse Model


2Department of Health Studies, FH Joanneum University of Applied Sciences, Graz, Austria
Huntington’s disease (HD) is caused by an expansion of CAG triplets in the huntingtin gene, leading to severe neuropathological changes that result in a devasting and lethal phenotype. Neurodegeneration in HD begins in the striatum and spreads to other brain regions such as cortex and hippocampus, causing motor and cognitive dysfunctions. To understand the signaling pathways involved in HD, animal models that mimic the human pathology are used. The R6/2 mouse as model of HD was already shown to present major neuropathological changes in the caudate putamen and other brain regions, but recently established biomarkers in HD patients were yet not analyzed in these mice. We therefore performed an in-depth analysis of R6/2 mice to establish new and highly translational readouts focusing on Ctip2 as biological marker for motor system-related neurons and translocator protein (TSPO) as a promisi ....

United States , Panreac Applichem Gmb , Zeiss Axiocam , Graphpad Software Inc , Vector Laboratories Inc , Accreditation Of Laboratory Animal Care , Association For Assessment , Western European , Jackson Laboratories , Raumordnung Austria , Pan Biotech , Thermo Scientific , Blocking Reagent , Vector Laboratories , Synaptic Systems , Panreac Applichem Gmbh , Sigma Aldrich , Novus Biologicals , Quantitative Image , Image Pro , Media Cybernetics , Supplementary Table , Supplementary Material , Laboratory Animal Care , Med Abstract , Crossref Full Text ,