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Florence Pojer

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Publications associées (48)

A Nanoscaffolded Spike-RBD Vaccine Provides Protection against SARS-CoV-2 with Minimal Anti-Scaffold Response

David Hacker, Bruno Emanuel Ferreira De Sousa Correia, Florence Pojer, Kelvin Ka Ching Lau

The response of the adaptive immune system is augmented by multimeric presentation of a specific antigen, resembling viral particles. Several vaccines have been designed based on natural or designed protein scaffolds, which exhibited a potent adaptive immu ...

2021

Palmitoylated acyl protein thioesterase APT2 deforms membranes to extract substrate acyl chains

Françoise Gisou van der Goot Grunberg, Matteo Dal Peraro, Laurence Gouzi Abrami, Florence Pojer, Maria Josefina Marcaida Lopez, Sylvia Ho, Francisco De Magalhães Sarmento R De Mesquita, Muhammad Umair Anwar, Patrick Alain Sandoz, Martina Audagnotto

Acyl protein thioesterase APT2 interacts with membranes via its charged beta-tongue, becomes palmitoylated by ZDHHC3/7 and deforms the bilayer to extract substrate acyl chains. APT2 deacylation leads to its membrane release and degradation. ...

NATURE RESEARCH2021

Changes in SARS-CoV-2 Spike versus Nucleoprotein Antibody Responses Impact the Estimates of Infections in Population-Based Seroprevalence Studies

Didier Trono, David Hacker, Florence Pojer, Kelvin Ka Ching Lau

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-specific antibody responses to the spike (S) protein monomer, S protein native trimeric form, or the nucleocapsid (N) proteins were evaluated in cohorts of individuals with acute infection (n = 9 ...

American Society for Microbiology2021

Azole-Based Indoleamine 2,3-Dioxygenase 1 (IDO1) Inhibitors

Pierre Vogel, Florence Pojer, Somi Reddy Majjigapu, George Coukos, Olivier Michielin

The heme enzyme indoleamine 2,3-dioxygenase 1 (IDO1) plays an essential role in immunity, neuronal function, and aging through catalysis of the rate-limiting step in the kynurenine pathway of tryptophan metabolism. Many IDO1 inhibitors with different chemo ...

AMER CHEMICAL SOC2021

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

A highly potent antibody effective against SARS-CoV-2 variants of concern

Didier Trono, Priscilla Turelli, Florence Pojer, Davide Demurtas, Charlène Mireille Raymonde Raclot, Kelvin Ka Ching Lau, Jérémy Campos

Control of the ongoing SARS-CoV-2 pandemic is endangered by the emergence of viral variants with increased transmission efficiency, resistance to marketed therapeutic antibodies, and reduced sensitivity to vaccine-induced immunity. Here, we screen B cells ...

2021

Btk SH2-kinase interface is critical for allosteric kinase activation and its targeting inhibits B-cell neoplasms

Matteo Dal Peraro, Florence Pojer, Sandrine Madeleine Suzanne Georgeon, Maria Josefina Marcaida Lopez, Oliver Hantschel, Allan Joaquim Lamontanara, Tim Kükenshöner, Daniel Pereira Duarte, Grégory La Sala

Bruton's tyrosine kinase (Btk) is critical for B-cell maturation and activation. Btk loss-of-function mutations cause human X-linked agammaglobulinemia (XLA). In contrast, Btk signaling sustains growth of several B-cell neoplasms which may be treated with ...

Nature Publishing Group2020

Selective inhibition of STAT3 signaling using monobodies targeting the coiled-coil and N-terminal domains

Florence Pojer, Kelvin Ka Ching Lau, Oliver Hantschel, Tim Kükenshöner, Grégory La Sala

The transcription factor STAT3 is frequently activated in human solid and hematological malignancies and remains a challenging therapeutic target with no approved drugs to date. Here, we develop synthetic antibody mimetics, termed monobodies, to interfere ...

Nature Research2020

De novo development of proteolytically resistant therapeutic peptides for oral administration

Christian Heinis, Luciano Andres Abriata, Florence Pojer, Xudong Kong, Vanessa Carle, Kaycie Marie Butler, Jun Moriya

The oral administration of peptide drugs is hampered by their metabolic instability and limited intestinal uptake. Here, we describe a method for the generation of small target-specific peptides (less than 1,600 Da in size) that resist gastrointestinal pro ...

2020

High resolution CryoEM structure of the ring-shaped virulence factor EspB from Mycobacterium tuberculosis

Stewart Cole, Florence Pojer, Jérémie Piton

The EspB protein of Mycobacterium tuberculosis is a 60 kDa virulence factor, implicated in conjugation and exported by the ESX-1 system of which it may also be a component. Previous attempts to obtain high-resolution maps of EspB by cryo-electron microscop ...

2020

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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

AMER ASSOC ADVANCEMENT SCIENCE2021

Changes in SARS-CoV-2 Spike versus Nucleoprotein Antibody Responses Impact the Estimates of Infections in Population-Based Seroprevalence Studies

Didier Trono, David Hacker, Florence Pojer, Kelvin Ka Ching Lau

American Society for Microbiology2021

Selective inhibition of STAT3 signaling using monobodies targeting the coiled-coil and N-terminal domains

Florence Pojer, Kelvin Ka Ching Lau, Oliver Hantschel, Tim Kükenshöner, Grégory La Sala

Nature Research2020

A Nanoscaffolded Spike-RBD Vaccine Provides Protection against SARS-CoV-2 with Minimal Anti-Scaffold Response

David Hacker, Bruno Emanuel Ferreira De Sousa Correia, Florence Pojer, Kelvin Ka Ching Lau

2021