Publications by Valeria Cagno | EPFL Graph Search

Virus adaptation to heparan sulfate comes with capsid stability tradeoff

Matteo Dal Peraro, Valeria Cagno, Aleksandar Antanasijevic

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, Valeria Cagno, Francisco De Magalhães Sarmento R De Mesquita

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, Céline Pellaton, Valeria Cagno, Jérémy Campos

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, Paulo Henrique Jacob Silva, Özgün Kocabiyik, 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

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

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, Paulo Henrique Jacob Silva, Özgün Kocabiyik, 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

Broad-spectrum non-toxic antiviral nanoparticles with a virucidal inhibition mechanism

Francesco Stellacci, Paulo Henrique Jacob Silva, Marie Mueller, Ahmet Bekdemir, Samuel Thomas Jones, Emma-Rose Janecek, Valeria Cagno

Viral infections kill millions yearly. Available antiviral drugs are virus-specific and active against a limited panel of human pathogens. There are broad-spectrum substances that prevent the first step of virus–cell interaction by mimicking heparan sulfat ...

2018

Virucidal metallic nanoparticles and uses thereof

Francesco Stellacci, Valeria Cagno

The invention relates to virucidal metallic nanoparticles, virucidal compositions comprising thereof and uses thereof in treatment and/or prevention of viral infections, for sterilizations and for disinfections. ...

2018

Additives for vaccine storage to improve thermal stability of adenoviruses from hours to months

Francesco Stellacci, Randy Patrick Carney, Paulo Henrique Jacob Silva, Valeria Cagno

Up to 80% of the cost of vaccination programmes is due to the cold chain problem (that is, keeping vaccines cold). Inexpensive, biocompatible additives to slow down the degradation of virus particles would address the problem. Here we propose and character ...

Nature Publishing Group2016