Publications de Valeria Cagno | EPFL Graph Search

Virus adaptation to heparan sulfate comes with capsid stability tradeoff

Matteo Dal Peraro, Aleksandar Antanasijevic, Valeria Cagno

Because of high mutation rates, viruses constantly adapt to new environments. When propagated in cell lines, certain viruses acquire positively charged amino acids on their surface proteins, enabling them to utilize negatively charged heparan sulfate (HS) ...

eLife Sciences Publications, Ltd2024

Inhibitors of acyl protein thioesterases against microbial infections

Françoise Gisou van der Goot Grunberg, Laurence Gouzi Abrami, Francisco De Magalhães Sarmento R De Mesquita, Valeria Cagno

The present invention relates inhibitors of acyl protein thioesterases and method of preparation thereof. It also relates to the use of inhibitors of acyl protein thioesterases in the treatment and/or prevention of a microbial infection such as viral or ba ...

2023

Polyanionic Amphiphilic Dendritic Polyglycerols as Broad-Spectrum Viral Inhibitors with a Virucidal Mechanism

Francesco Stellacci, Valeria Cagno, Matteo Gasbarri

Heparin has been known to be a broad-spectrum inhibitor of viral infection for almost 70 years, and it has been used as a medication for almost 90 years due to its anticoagulant effect. This nontoxic biocompatible polymer efficiently binds to many types of ...

American Chemical Society2022

A high-throughput cell- and virus-free assay shows reduced neutralization of SARS-CoV-2 variants by COVID-19 convalescent plasma

Didier Trono, Priscilla Turelli, Florence Pojer, Charlène Mireille Raymonde Raclot, Valeria Cagno, Jérémy Campos, Céline Pellaton

The detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-specific antibodies in the serum of an individual indicates previous infection or vaccination. However, it provides limited insight into the protective nature of this immune resp ...

AMER ASSOC ADVANCEMENT SCIENCE2021

Virucidal compositions and use thereof

Francesco Stellacci, Özgün Kocabiyik, Paulo Henrique Jacob Silva, Valeria Cagno

The invention relates to virucidal compositions comprising a sialic acid (SA) moiety, pharmaceutical compositions and disinfection and/or sterilization compositions comprising thereof and uses thereof in disinfection and/or sterilization methods and in tre ...

2021

Sulfonated Nanomaterials with Broad-Spectrum Antiviral Activity Extending beyond Heparan Sulfate-Dependent Viruses

Francesco Stellacci, Valeria Cagno, Matteo Gasbarri, Chiara Medaglia

Viral infections are among the main causes of death worldwide, and we lack antivirals for the majority of viruses. Heparin-like sulfated or sulfonated compounds have been known for decades for their ability to prevent infection by heparan sulfate proteogly ...

AMER SOC MICROBIOLOGY2020

SARS-CoV-2 Inhibition by Sulfonated Compounds

Francesco Stellacci, Valeria Cagno, Matteo Gasbarri

Severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) depends on angiotensin converting enzyme 2 (ACE2) for cellular entry, but it might also rely on attachment receptors such as heparan sulfates. Several groups have recently demonstrated an ...

2020

Virucidal nanoparticles and use thereof against influenza virus

Francesco Stellacci, Özgün Kocabiyik, Valeria Cagno

The invention relates to virucidal nanoparticles comprising a trisaccharide moiety and use thereof against influenza virus. ...

2020

Modified cyclodextrins as broad-spectrum antivirals

Francesco Stellacci, Natalia Gasilova, Daniel Ortiz Trujillo, Valeria Cagno, Matteo Gasbarri, Samuel Thomas Jones, Matej Janecek

Viral infections kill millions of people and new antivirals are needed. Nontoxic drugs that irreversibly inhibit viruses (virucidal) are postulated to be ideal. Unfortunately, all virucidal molecules described to date are cytotoxic. We recently developed n ...

AMER ASSOC ADVANCEMENT SCIENCE2020

Non-Toxic Virucidal Macromolecules Show High Efficacy Against Influenza Virus Ex Vivo and In Vivo

Francesco Stellacci, Özgün Kocabiyik, Paulo Henrique Jacob Silva, Valeria Cagno, Yong Zhu, Chiara Medaglia

Influenza is one of the most widespread viral infections worldwide and represents a major public health problem. The risk that one of the next pandemics is caused by an influenza strain is high. It is important to develop broad-spectrum influenza antiviral ...

2020