Publications de Davide Demurtas

RAIN: machine learning-based identification for HIV-1 bNAbs

Broadly neutralizing antibodies (bNAbs) are promising candidates for the treatment and prevention of HIV-1 infections. Despite their critical importance, automatic detection of HIV-1 bNAbs from immune repertoires is still lacking. Here, we develop a straig ...

Nature Research2024

Cryogenic electron tomography to determine thermodynamic quantities for nanoparticle dispersions

Francesco Stellacci, Davide Demurtas, Quy Ong Khac, Xufeng Xu, Francesca Olgiati, Ting Mao, Paulo Henrique Jacob Silva, Anna Murello

Here we present a method to extract thermodynamic quantities for nanoparticle dispersions in solvents. The method is based on the study of tomograms obtained from cryogenic electron tomography (cryoET). The approach is demonstrated for gold nanoparticles ( ...

2022

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

Rationally designed Human Cytomegalovirus gB nanoparticle vaccine with improved immunogenicity

Davide Demurtas

Author summary Human cytomegalovirus (HCMV) infection is the foremost viral cause of congenital birth defects. Attempts to vaccinate against HCMV brought moderate, though not sufficient, reduction in infection. Moreover, phase II clinical trial with gB for ...

2020

Novel features of centriole polarity and cartwheel stacking revealed by cryo-tomography

Pierre Gönczy, Davide Demurtas, Georgios Hatzopoulos, Sergey Nazarov, Alexandra Bezler, Paul Guichard, Veronika Nemcíková Villímová

Centrioles are polarized microtubule-based organelles that seed the formation of cilia, and which assemble from a cartwheel containing stacked ring oligomers ofSAS-6 proteins. A cryo-tomography map of centrioles from the termite flagellateTrichonymphaspp. ...

2020

KAP1 is an antiparallel dimer with a functional asymmetry

Didier Trono, Matteo Dal Peraro, Beat Fierz, Davide Demurtas, Louise Catherine Bryan, Maria Josefina Marcaida Lopez, Giulia Fonti, Pierre-Yves Joseph Laurent Helleboid, Alexandra Styliani Kalantzi

KAP1 (KRAB domain-associated protein 1) plays a fundamental role in regulating gene expression in mammalian cells by recruiting different transcription factors and altering the chromatin state. In doing so, KAP1 acts both as a platform for macromolecular i ...

Life Science Alliance, LLC2019

Flagellar microtubule doublet assembly in vitro reveals a regulatory role of tubulin C-terminal tails

Davide Demurtas, Paul Guichard, Virginie Hamel

Microtubule doublets (MTDs), consisting of an incomplete B-microtubule at the surface of a complete A-microtubule, provide a structural scaffold mediating intraflagellar transport and ciliary beating. Despite the fundamental role of MTDs, the molecular mec ...

American Association for the Advancement of Science2019

Tumor-associated factors are enriched in lymphatic exudate compared to plasma in metastatic melanoma patients

Davide Demurtas, Melody Swartz, Romain Hamelin, Lambert Charles François Potin, Patricia Corthésy Henrioud, Natacha Anne-Sophie Bordry, Maria Anna Sofia Broggi, Léa Maillat, Alexandre Harari

Liquid biopsies allow monitoring of cancer progression and detection of relapse, but reliable biomarkers in melanoma are lacking. Because secreted factors preferentially drain to lymphatic vessels before dilution in the blood, we hypothesized that lymph sh ...

ROCKEFELLER UNIV PRESS2019

Nanodesign of new self-assembling core-shell gellan-transfersomes loading baicalin and in vivo evaluation of repair response in skin

Davide Demurtas

2018

Structure-Property Relationships of Amphiphilic Nanoparticles That Penetrate or Fuse Lipid Membranes

Francesco Stellacci, Davide Demurtas, Paulo Henrique Jacob Silva, Randy Patrick Carney, Ye Yang, Ahmet Bekdemir, Zekiye Pelin Güven

2018