Use of Golden Syrian Hamster as an Animal Model to Study Leptospirosis-Associated Immune Responses.

Methods Mol Biol

Immunity and Inflammation Group, Institut Pasteur in New Caledonia, Institut Pasteur International Network, Noumea, New Caledonia, France.

Published: March 2021

Experimental infections greatly contribute to further deepen our knowledge of infectious diseases. In the case of leptospirosis, hamsters as well as gerbils and guinea pigs have been used as animal models of acute leptospirosis in studying the pathophysiology of the disease. Here we describe a typical Leptospira infection using golden Syrian hamsters. We will also present techniques we use to study the resulting bacterial burden and gene expression patterns in the host in order to decipher the innate immune response to leptospirosis.

Download full-text PDF

Source
http://dx.doi.org/10.1007/978-1-0716-0459-5_22DOI Listing

Publication Analysis

Top Keywords

golden syrian
8
syrian hamster
4
hamster animal
4
animal model
4
model study
4
study leptospirosis-associated
4
leptospirosis-associated immune
4
immune responses
4
responses experimental
4
experimental infections
4

Similar Publications

Bacteriophage-derived dsRNA (bp-dsRNA), also known as Larifan, is a poly-functional and wide-spectrum antiviral medication with potent interferonogenic activity. In the lungs of golden Syrian hamsters infected with SARS-CoV-2, Larifan substantially reduces viral load and decreases infection-induced pathological lesion severity. Alveolar macrophages (AM) are key sentinel cells in the lung, which play an important role in antiviral innate immune responses and, at the same time, can trigger infection-associated hyper-inflammatory response.

View Article and Find Full Text PDF

Assessment of Favipiravir and Remdesivir in Combination for SARS-CoV-2 Infection in Syrian Golden Hamsters.

Viruses

November 2024

Department of Pharmacology and Therapeutics, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK.

Favipiravir (FVP) and remdesivir (RDV) have demonstrable antiviral activity against SARS-CoV-2. Here, the efficacy of FVP, RDV, and FVP with RDV (FVP + RDV) in combination was assessed in Syrian golden hamsters challenged with SARS-CoV- 2 (B.1.

View Article and Find Full Text PDF

Background/objectives: The ongoing COVID-19 pandemic has underscored the need for alternative prophylactic measures, particularly for populations for whom vaccines may not be effective or accessible. This study aims to evaluate the efficacy of intranasally administered IgY antibodies derived from hen egg yolks as a protective agent against SARS-CoV-2 infection in Syrian golden hamsters, a well-established animal model for COVID-19.

Methods: Hens were immunized with the spike protein of SARS-CoV-2 to generate IgY antibodies.

View Article and Find Full Text PDF

Background/objectives: Influenza viruses and SARS-CoV-2 are currently cocirculating with similar seasonality, and both pathogens are characterized by a high mutational rate which results in reduced vaccine effectiveness and thus requires regular updating of vaccine compositions. Vaccine formulations combining seasonal influenza and SARS-CoV-2 strains can be considered promising and cost-effective tools for protection against both infections.

Methods: We used a licensed seasonal trivalent live attenuated influenza vaccine (3×LAIV) as a basis for the development of a modified 3×LAIV/CoV-2 vaccine, where H1N1 and H3N2 LAIV strains encoded an immunogenic cassette enriched with conserved T-cell epitopes of SARS-CoV-2, whereas a B/Victoria lineage LAIV strain was unmodified.

View Article and Find Full Text PDF

Combination of spatial transcriptomics analysis and retrospective study reveals liver infection of SARS-COV-2 is associated with clinical outcomes of COVID-19.

EBioMedicine

December 2024

Liver Cancer Institute, Zhongshan Hospital, and Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Fudan University, Shanghai, China. Electronic address:

Background: Liver involvement is a common complication of coronavirus disease 2019 (COVID-19), especially in hospitalized patients. However, the underlying mechanisms involved are not fully understood.

Methods: Immunohistochemistry (IHC) staining of SARS-CoV-2 spike (S) and nucleocapsid (N) proteins was conducted on liver tissues from six patients with COVID-19.

View Article and Find Full Text PDF

Want 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!