https://joliot.cea.fr/drf/joliot/en/Pages/news/Science.aspx Website of the Frédéric-Joliot Institute of Life Sciences which includes 4 departments: I2BC, DMTS, NeuroSpin and Service hospitalier Frédéric Joliot (SHFJ). The teams are mainly located at the CEA Paris-Saclay center and at the Orsay hospital. en-US https://www.cea.fr/Style%20Library/Themes/drf/instituts/images/logo-cea-joliot-2023.png https://joliot.cea.fr/drf/joliot/en https://www.cea.fr/drf/joliot/en/Pages/news/Science/2026/Auditory-environment-superior-temporal-sulcus-depth-neonatal.aspx A team from NeuroSpin investigated the impact of contrasting auditory environments on the morphology of the superior temporal sulcus (STS) in preterm newborns. By showing that exposure to music is associated with a deeper STS, the authors suggest that early auditory experience influences the structural development of temporal brain regions. Brain ; MRI ; Cognition Neurospin Scientific result ; Article Mon, 23 Feb 2026 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2026/Analysis-global-metabolism-carbon-13-isotopic-labeling.aspx A collaborative study between the BIAM and Joliot (SPI/DMTS) institutes demonstrates the feasibility of near-complete whole-body carbon-13 isotopic labeling in mice and lays the foundation for a global, quantitative, and unbiased metabolomics approach. This unprecedented strategy could also enable the investigation of certain metabolic troubles. Mass spectrometry ; Metabolomics BIAM Scientific result Mon, 09 Feb 2026 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2026/Identification-new-anti-ricin-monoclonal-antibodies.aspx DMTS teams have characterised 17 monoclonal antibody-candidates targeting ricin using two original biophysical approaches. The identification of ricin residues involved in functional antibody recognition paves the way for the development of powerful monoclonal therapeutic antibodies against this natural toxin, which is a bioterrorism agent. Biodetection ; CBRN-E threats SIMOPRO Scientific result Wed, 21 Jan 2026 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2026/Regulation-Fe–S-cluster-biosynthesis-elucidated.aspx A team from I2BC has uncovered the key steps governing the assembly and regulation of iron–sulfur cluster biosynthesis, essential metallic cofactors involved in numerous biological functions. Defects in this process lead to pathologies such as Friedreich’s ataxia. These studies represent major advances toward the development of future therapies. Cellular mechanisms ; Molecular mechanisms ; Diseases SBIGEM Scientific result Fri, 16 Jan 2026 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2026/BBB-FUS-suppress-noise.aspx Des équipes du SHFJ, de NeuroSpin et du CEA-Jacob optimisent leur stratégie d'ouverture de la barrière hémato-encéphalique par ultrasons focalisés (FUS). Leur nouveauté : un algorithme masquant la cavitation extracrânienne induite par les muscles temporaux épais, particulièrement chez les grands mâles primates, qui vient masquer le signal dans la région d'intérêt. Diagnosis and innovative treatment ; Brain Researchers MIRcen Scientific result ; Industrial partnerships animal model;preclinical research; Wed, 14 Jan 2026 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2026/Respiratory-dynamics-3Dspirometry-pulmonary-MRI.aspx A team from SHFJ has developed an original method of 3D spirometry using pulmonary magnetic resonance imaging in a cohort of volunteers breathing freely. This approach has revealed the existence of common patterns among individuals that depend mainly on gravity. This is a step towards a regional pathophysiological characterisation of respiratory diseases. Medical imaging ; MRI SHFJ Scientific result Mon, 12 Jan 2026 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Ketamine-TEP-synaptogenese.aspx Des chercheurs de BioMaps (SHFJ) et de MOODS ont validé une approche innovante de neuroimagerie moléculaire permettant de suivre, de manière non-invasive, les effets de la kétamine sur la densité synaptique dans un modèle préclinique de dépression. Positron Emission Tomography ; Diagnosis and innovative treatment Researchers SHFJ Scientific result préclinique;modèle animal; Mon, 22 Dec 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Reconstruction-TEP-regularisation-Plug-and-Play-convergente.aspx A team of researchers from BioMaps (SHFJ) is proposing a new reconstruction method for PET imaging that combines optimization algorithms with deep neural networks. Their “plug-and-play” regularization approach ensures improved image quality thanks to PET-specific reconstruction learning, while guaranteeing stability and robustness—two critical aspects in the use of AI-based medical techniques. Positron Emission Tomography ; Artificial intelligence Researchers SHFJ Scientific result Tue, 16 Dec 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/lux-eteindre-signal-IRM-sondes-micellaires--PERFECTA.aspx Researchers at the SCBM and BAOBAB have developed a new version of their nanometric micellar vector designed for fluorine-19 magnetic resonance tumor imaging. This version is intended to enhance MRI contrast by switching off the signal on demand in certain areas, while preserving it in pathological regions to be imaged. MRI ; Chemistry ; Diagnosis Researchers Neurospin Scientific result Fri, 05 Dec 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Cerebral-tumour-diagnosis-passive-elastography.aspx Researchers at SHFJ and NeuroSpin applied a passive MRI elastography sequence to patients with brain tumors. This non-invasive approach provided information on tumor stiffness and nature, and could support early detection, surgical planning, and treatment monitoring. Medical imaging ; MRI ; Cancer ; Brain Neurospin Scientific result Wed, 26 Nov 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Protection-telomeres-fusions-chromosomiques.aspx Researchers from CEA-Jacob and the Genome Integrity team at I2BC, in collaboration with Gustave Roussy and the Institut Pasteur, demonstrate that the Rap1 protein prevents the translocation of the Ku protein— a major factor in double-strand break repair — thereby avoiding deleterious fusions between chromosomes. Structural biology Researchers SB2SM Scientific result microscopie électronique; Mon, 17 Nov 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Nitriles-marques-nouvelle-agent-cyanation.aspx ​Des chercheurs du SCBM en collaboration avec le SHFJ décrivent un nouveau paradigme pour le marquage isotopique au carbone de composés nitriles : plus simple, plus propre et universel, ouvrant la voie à une production élargie de molécules marquées d’intérêt en santé et en agrochimie. Chemistry ; Medical imaging Researchers SCBM Scientific result ; Europe Fri, 14 Nov 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Transport-trastuzumab-nanoparticles-nasal-epithelium.aspx ​Researchers from SPI (DMTS) developed a formulation of PLGA nanoparticles loaded with the anticancer trastuzumab (NP-TZB) and measured their ability to cross a cellular model of the nasal epithelial barrier. This first validated step supports a potential nose-to-brain (N2B) delivery route. Nanomedicine ; Cancer ; Pharmacology SPI Scientific result Wed, 12 Nov 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Cyanine-5-huwentoxin-IV-imaging-agent-lung-cancer.aspx A team from SIMoS (DMTS) has demonstrated the ability of a peptide derived from a spider venom toxin to detect overexpressed sodium channels in a metastatic non-small cell lung cancer (NSCLC) cell line. Biotechnology ; Biomarkers ; Cell and molecular imaging ; Cancer SIMOPRO Scientific result Mon, 10 Nov 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/mineMS2.aspx A LI-MS team presents an innovative strategy and software for structural elucidation in metabolomics using tandem mass spectrometry. Mass spectrometry ; Metabolomics Researchers SPI Article ; Scientific result Fri, 07 Nov 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Encapsulation-Astate-Bambusuril.aspx Des chercheurs du SCBM (DMTS) rapportent pour la première fois qu'un bambusuril, un macrocycle synthétisé dans leur laboratoire, est capable d'encapsuler un anion astate-211, un radionucléide émetteur de rayonnements , très prometteur pour des applications en radiothérapie interne vectorisée. Chemistry ; Radiotherapy Researchers SCBM Scientific result ; Europe Wed, 29 Oct 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/alpha-synucleine-formes-tronquees-MS.aspx Une équipe du LI-MS (SPI/DMTS) combine un protocole robuste d’immunoprécipitation de l’alpha-synucléine à de la spectrométrie de masse haute résolution et caractérise des formes tronquées inédites de la protéine. ​ Proteomics ; Biomarkers Researchers SPI Scientific result ; Article Mon, 20 Oct 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/PET-imaging-OATP-function-impacts-sex-age.aspx Researchers from BioMaps (SHFJ) investigated the hepatic activity of organic anion-transporting polypeptides (OATPs), key players in the elimination of certain drugs, using a PET imaging approach with 11C-glyburide, which revealed differences in tracer pharmacokinetics between men and women. Pharmacology ; Positron Emission Tomography ; Medical imaging SHFJ Scientific result Wed, 15 Oct 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Conscience-IRM-fonctionnelle-IA.aspx Deux études récentes menées par des équipes de NeuroSpin proposent d’appliquer des méthodes combinant des modèles mathématiques d’analyse de données à l’IRM fonctionnelle pour mieux modéliser les connectivités fonctionnelles du cerveau. MRI ; Brain Researchers Neurospin Scientific result modèle animal; Thu, 09 Oct 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Radioligands-TEP-neuroinflammation.aspx Des chercheurs du SHFJ, en collaboration avec le CEA-Jacob, le CRN à Lyon et le PharmaCenter à Bonn ont imaginé, synthétisé et caractérisé deux radiotraceurs TEP ciblant P2Y12, une protéine impliquée dans l’activation de la microglie durant la neuroinflammation.​ Positron Emission Tomography ; Pharmacology Researchers MIRcen Scientific result préclinique;modèle animal; Fri, 03 Oct 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/GMR-sensor-biochip-for-point-of-care-diagnostics.aspx Researchers from IRAMIS and SPI (DMTS) evaluated their GMR-sensor biochip prototype for its ability to detect cancer cells in a complex medium. This approach, which combines sensor physics with medical biology, aims to develop simpler and portable diagnostic tools that meet the WHO criteria for point-of-care testing. Physics ; Biodetection SPI Scientific result ; Article Tue, 30 Sep 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Effet-qualite-lumiere-sur-photosynthese.aspx Une étude menée par une équipe de l'I2BC montre que la surexcitation du photosystème II est responsable de la faible valeur de qL, un paramètre de fluorescence, chez des mutants d’Arabidopsis thaliana incapables de réaliser des « transitions d’état ». Photosynthesis ; Molecular mechanisms ; Cell and molecular imaging Researchers SB2SM Scientific result ; Article Fri, 26 Sep 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/PET-KinetiX.aspx A team from BioMaps, in collaboration with the Orsay mathematics laboratory, has developed PET KinetiX, software that generates parametric maps of advanced biological functions from dynamic PET images. This type of software could help accelerate the clinical transfer of these advanced PET biomarkers into clinical practice. Medical imaging Researchers SHFJ Scientific result Mon, 22 Sep 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Llama-antibodies-therapeutic-avenues-against-schizophrenia.aspx Researchers from SIMoS (DMTS) contributed to the characterization of a nanobody (VHH) designed by scientists at the Institut de Génomique Fonctionnelle in Montpellier. They performed tritium labeling and biodistribution tracking of this VHH, which can specifically activate a glutamate receptor involved in schizophrenia. This work was published in Nature. Biotechnology SIMOPRO Scientific result ; Article preclinical model;animal models; Wed, 10 Sep 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Mitose-KIF2C.aspx A study led by the I2BC shows that the formation of condensates of the enzyme KIF2C enables the concentration of two other proteins, PLK1 and phosphorylated BRCA2, on kinetochore microtubules during mitosis. This would serve to control chromosome alignment on the spindle and contribute to their stability. DNA ; Structural biology ; Cancer Researchers SB2SM Scientific result Mon, 08 Sep 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Monoclonal-antibodies-production-targeted-cell-fusion.aspx Researchers at SPI (DMTS) have developed a high-yield strategy for producing monoclonal antibodies by preselecting the antibody-producing cells most likely to form viable hybridomas. This represents a step towards a wider use of this technology which should help to further reduce the number of animals to be immunised. Biotechnology SPI Scientific result ; Article animal models; Fri, 05 Sep 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/New-technique-for-analyzing-CPL-emitting-molecules.aspx Scientists at the EPFL, in collaboration with a team from SCBM (DMTS), have developed a new technique that enables, with unprecedented sensitivity, the measurement of circularly polarized light emitted by luminescent materials over time. This work has been published in Nature. Chemistry ; Materials SCBM Scientific result ; Article Wed, 03 Sep 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Ultrasound-counter-exposure-neurotoxic-agent.aspx Researchers from BioMaps (SHFJ), NeuroSpin, and the french IRBA developed an innovative approach using focused ultrasound to improve brain delivery of an antidote, oxime, following exposure to an organophosphorus neurotoxic agent in a murine model. Pharmacology ; Toxicology ; Brain ; CBRN-E threats Neurospin Scientific result preclinic;animal models; Thu, 28 Aug 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Tolerance-opioid-PET.aspx A study combining PET imaging and pharmacology, conducted by researchers at BioMaps (SHFJ), suggests that decreased availability of opioid receptors and altered neuronal energy metabolism constitute molecular signatures of opioid tolerance. These observations, made in an animal model, could help improve understanding and treatment of opioid dependence. Positron Emission Tomography ; Molecular mechanisms Researchers SHFJ Scientific result ; Article opiate;preclinical model; Wed, 06 Aug 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Monitoring-microstructural-functional-brain-development-in-infants.aspx A team from NeuroSpin studied the microstructural and functional connectivity profiles of infants’ brains to understand how these characteristics evolve and relate to each other during early neurodevelopment. The results indicate that connectivity, which is altered by prematurity, strengthens with maturation, and that the associated networks become increasingly similar. Brain ; MRI ; Medical imaging Neurospin Scientific result Mon, 04 Aug 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Sequence-desordonnee-Rad52-assemblage-Rad51.aspx En utilisant Saccharomyces cerevisiae comme modèle, des chercheurs des instituts CEA-Jacob et CEA-Joliot, et de l’Institut Curie, avec leurs partenaires du synchrotron SOLEIL, ont révélé comment la protéine Rad52 agit comme un chaperon pour guider et stabiliser l’assemblage de Rad51, une étape clé de la recombinaison homologue.​ Structural biology ; Cellular mechanisms ; Molecular mechanisms Researchers SB2SM Scientific result Mon, 28 Jul 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Statistical-learning-beyond-words-human-neonates.aspx Ghislaine Dehaene's team (NeuroSpin) carried out EEG experiments on neonates to find out whether statistical learning was a mechanism dedicated solely to language acquisition. By exploiting the speaker identity and phonemes, the researchers conclude that statistical learning mechanisms are universal and not limited to linguistic characteristics. Cognition ; Learning ; Brain Neurospin Scientific result Tue, 22 Jul 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Correlation-neuroinflammation-epileptogenic-zone-TSPO-PET.aspx A study by SHFJ researchers has established a strong correlation between biomarkers of neuroinflammation, revealed by original PET imaging, and intracranial electroencephalographic recordings of epileptogenic activity. This offers hope for drug-resistant patients who are candidates for surgery. Positron Emission Tomography ; Medical imaging ; Brain SHFJ Scientific result ; Article Tue, 15 Jul 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Cancer-mertansine-prodrogue.aspx Une équipe du laboratoire BioMaps, en collaboration avec l’Institut Galien Paris-Saclay a mis au point une stratégie innovante associant une prodrogue polymère et l'imagerie par tomographie par émission de positons (TEP) pour améliorer l'efficacité de la mertansine, un agent antitumoral puissant mais toxique. Medical imaging ; Diagnosis and innovative treatment ; Cancer Researchers SHFJ Scientific result ; Article préclinique;modèle animal; Tue, 01 Jul 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Drug-candidate-for-treatment-neonatal-encephalopathy.aspx Researchers from the SPI (DMTS) and the Women & Infants Hospital in Providence have laid the molecular basis for the neuroprotection of a purine derivative in a preclinical model of neonatal hypoxic-ischemic encephalopathy (HIE). The promising results support the development of this drug candidate to treat HIE in neonates. Pharmacology ; Brain ; Molecular mechanisms ; Diseases SPI Scientific result animal models;preclinic; Thu, 26 Jun 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/IRM-diffusion-substance-blanche-LATE-vs-ALZHEIMER.aspx Des chercheurs du SHFJ, de NeuroSpin et du GHU Paris Psychiatrie & Neurosciences mettent en évidence des différences dans les altérations des faisceaux de substance blanche entre des patients diagnostiqués Alzheimer et d’autres vraisemblablement atteints de la pathologie LATE. Neurodegenerative diseases ; Alzheimer's disease Researchers Neurospin Scientific result Wed, 11 Jun 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Interactions-of-alpha-synuclein-with-polyethylene-nanoplastics.aspx A team from I2BC, in collaboration with the NIMBE (CEA-Iramis), is unveiling the nature of the interactions of human alpha-synuclein (hαSn) with polyethylene nanoplastics, using molecular dynamics simulations and experimental methods. Nanotoxicology ; Simulation ＆ modelling ; Structural biology Iramis Scientific result Tue, 27 May 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Theranostic-antibodies-endothelin-receptors-models-glioblastoma-melanoma.aspx Researchers from SPI (DMTS) propose immunodiagnostic and immunotherapeutic approaches based on the use of innovative antibodies targeting two subtypes of endothelin receptors (ETA and ETB), recognised as relevant therapeutic targets in oncology. Health ＆ life sciences ; Cancer ; Medical imaging ; Positron Emission Tomography Neurospin Scientific result preclinical research;animal models; Thu, 22 May 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/interfaces-proteine-ARN.aspx Une équipe de l’I2BC a mené une étude prédictive de la structure des interfaces d’interaction dans les complexes protéine - ARN : bien que de nombreux aspects de ces interfaces soient largement conservés au cours de l’évolution, une grande versatilité existe dans les contacts polaires entre les molécules. Structural biology Researchers SB2SM Scientific result Tue, 20 May 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/How-does-brain-remember-duration-of-events.aspx A behavioural study conducted by a NeuroSpin team assessed the brain's processing of duration in working memory by having participants memorise a sequence of time intervals and then reproduce the duration of each interval. The results suggest that the brain processes the duration of each event as separate information. Brain ; Cognition Neurospin Scientific result ; Article Mon, 05 May 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Devenir-cerveau-adolescent-AVC-neonatal.aspx Une étude dirigée par une équipe de NeuroSpin confirme la vulnérabilité spécifique du cerveau du bébé masculin après un AVC autour de la naissance.​ Brain Researchers Neurospin Scientific result Fri, 18 Apr 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Synthesis-anti-cancer-drug-cells-using-nanomicelles.aspx A team at SCBM (DMTS) has designed nanomicelles that can be activated by a bioorthogonal reaction releasing a first chemical species, which then reacts with a second compound encapsulated in the micelles. Application to the synthesis of an anti-cancer drug, sorafenib, inside living cells. Chemistry ; Methodologies for life sciences ; Cancer SCBM Scientific result Fri, 11 Apr 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/thylakoid-3D-organisation-high-resolution-fluorescence-microscopy.aspx A team from I2BC has applied a novel fluorescence microscopy method to reconstruct 3D chloroplast volumes from 2D images. A promising approach for monitoring variations in the volume of the photosynthetic membrane network in response to environmental fluctuations in plants. Photosynthesis ; Microscope SB2SM Scientific result ; Article Tue, 08 Apr 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Progression-SARS-Cov-2-echelle-corps-entier.aspx Le laboratoire BioMaps (SHFJ) a collaboré à une étude dirigée par IDMIT (CEA-Jacob) montrant en imagerie TEP sur le modèle animal primate la progression de SARS –Cov-2 en phase aigüe et trois mois après l’infection, notamment dans les poumons et le cerveau. Virus ; Cell and molecular imaging Scientific result ; Article préclinique;modèle animal; Wed, 02 Apr 2025 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Ricin-passive-immunotherapy-Antibodies.aspx ​The LERI (SPI/DMTS) has developed a new generation of anti-ricin antibodies with a high affinity for the D and E isoforms of the protein, providing effective protection for model mice intoxicated with ricin. CBRN-E threats Researchers SPI Scientific result ; Article toxin;Preclinical;animal models; Fri, 28 Mar 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/perylene-fission-singulet.aspx Une étude internationale menée par un laboratoire de l’I2BC montre qu’un phénomène quantique appelé fission du singulet peut se produire lorsqu’une molécule modèle est mise en solution aqueuse et qu’elle se dimérise. L’étude spectroscopique exhaustive ouvre de nouvelles voies de recherche pour le développement de systèmes photocatalytiques efficients en milieu aqueux. Photosynthesis ; Bio-inspired catalysis Researchers SB2SM Scientific result Mon, 24 Mar 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Optimized-toxin-MQ232-snake-venom-renal-diseases.aspx Researchers at SIMoS, SPI (DMTS) and BioMaps (SHFJ) report the development of a new molecule, MQ232, derived from mambaquaretin. As a specific antagonist of the vasopressin V2 receptor, MQ232 is a promising drug candidate for the treatment of renal pathologies. Health ＆ life sciences ; Diseases ; Biotechnology SHFJ Scientific result ; Article animal models;preclinic; Thu, 20 Mar 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Troubles-psychiatriques-quelle-IA-pour-analyser-IRM.aspx ​​Une étude comparative menée par des chercheurs de l’UMR BAOBAB/NeuroSpin en collaboration avec le LTCI (Télécom Paris) explique pourquoi l’apprentissage profond est plus performant que l’apprentissage automatique standard en neuroimagerie et souligne le potentiel de l’apprentissage par transfert.​ MRI ; Artificial intelligence Scientific result ; Article Thu, 27 Feb 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/detection-ricine.aspx Une équipe du LI-MS (SPI/DMTS) a mis au point une méthode de détection de la ricine combinant l’enrichissement des échantillons grâce à l’affinité de la ricine pour une glycoprotéine et la spectrométrie de masse à haute résolution. CBRN-E threats Researchers SPI Scientific result ; Article Wed, 19 Feb 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Next-generation-sequencing-chess-game.aspx A team from I2BC has proposed a thought experiment -the Next Generation Sequencing chess problem-, which treats sequencing data as a superimposed image of several independent chess games. A more realistic approach to the dynamics of cellular processes within each cell, revealing the limits of NGS approaches to temporal analysis. Bioinformatic ; DNA ; Molecular mechanisms ; Simulation ＆ modelling SBIGEM Scientific result Mon, 17 Feb 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Deuteration.aspx ​Une étude menée par le SCBM présente une approche innovante permettant de relever les défis actuels des méthodes d'échange isotopique hydrogène - deutérium en offrant un processus efficace, reproductible et évolutif. Ave à la clef, de possibles développements industriels dans les domaines des médicaments et des technologies OLED. Chemistry ; Diagnosis and innovative treatment ; Innovation for industry Researchers SCBM Scientific result Thu, 13 Feb 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/antenne-lobes-temporaux.aspx Une équipe de NeuroSpin en collaboration avec Multiwave Technologies a conçu et développé une antenne de réception pour l’IRM Iseult 11,7 T ciblant uniquement les lobes temporaux, une région d’intérêt pour les neuroscientifiques. MRI Researchers Neurospin Scientific result ; Europe ; Article Thu, 30 Jan 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Universal-identification-pathogenic-viruses-proteotyping.aspx Researchers at Li2D (SPI/DMTS, Marcoule) have proposed an innovative tandem mass spectrometry proteotyping method for the universal identification of pathogenic viruses, requiring no prior knowledge of sample composition. A step towards improved diagnosis of viral infections Virus ; Mass spectrometry ; Biodetection ; CBRN-E threats SPI Scientific result ; Article Wed, 29 Jan 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Marquage-NIE-azote-pyridine.aspx Des chercheurs du SCBM présentent une solution innovante de marquage par échange isotopique de l’azote des dérivés de la pyridine, un hétérocycle aromatique très représenté dans l’agro-industrie et l’industrie pharmaceutique. ​ Chemistry Researchers SCBM Scientific result Fri, 24 Jan 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Test-bandelette-detection-infections-Candida-auris.aspx Des chercheurs du LERI (SPI/DMTS), en collaboration avec NG Biotech, ont développé un test-bandelette de détection de Candida auris, un champignon à l’origine d’infections nosocomiales de plus en plus fréquentes. Leurs premiers résultats sur des souches isolées indiquent d’excellentes performances du dispositif. Diagnosis ; Infectious diseases Scientific result ; Article Mon, 20 Jan 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/New-molecular-target-analgesic-action-crotalphine.aspx A team from SIMoS (DMTS) identifies a subtype of sodium channels, expressed in spinal ganglion sensory neurons, as a target involved in the action of crotalphine, an analgesic peptide derived from rattlesnake venom. Health ＆ life sciences SIMOPRO Scientific result ; Article animal models; Thu, 16 Jan 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/Cancer-immunoprofiling-click-chemistry-mass-spectrometry.aspx Researchers at DMTS and SHFJ have carried out a multiplexed analysis of tumor cells and tissues, based on the use of cleavable therapeutic antibodies carrying mass tags, for the identification and quantification of cancer biomarkers. A proof-of-concept demonstrating the high potential of this tumor immunoprofiling approach Cancer ; Chemistry ; Mass spectrometry ; Diagnosis SIMOPRO Scientific result preclinical research;animal models; Mon, 13 Jan 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/QSM4SENIOR-cartographie-charge-en-fer-vieillissement-cerveau.aspx Les premières données du projet QSM4SENIOR, porté par des équipes de NeuroSpin et de la société VENTIO, ont été publiées dans Frontiers in Neuroimaging. Elles permettent de dresser une cartographie très précise de l’évolution de la charge en fer au cours du vieillissement cérébral normal, une aide précieuse pour les scientifiques spécialistes des maladies neurodégénératives. ​ Brain ; MRI Researchers Neurospin Scientific result ; Europe ; Industrial partnerships Tue, 26 Nov 2024 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/QSM4SENIOR-Iron-mapping.aspx The first data from the QSM4SENIOR project, led by teams from NeuroSpin and VENTIO, have been published in Frontiers in Neuroimaging. They provide a highly accurate map of changes in iron levels during normal brain ageing, a valuable aid for scientists specialising in neurodegenerative diseases. Brain ; MRI Researchers Neurospin Scientific result ; Europe ; Industrial partnerships Tue, 26 Nov 2024 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Chimpanzee-and-human-brain-superficial-structural-connectivities.aspx A team from NeuroSpin has proposed a classification of the morphology of short white matter bundles (SWMBs) in human and chimpanzee brains. A wide variety of shapes was observed, as well as differences. This study provides valuable information on SWMB morphology and its potential implications for human cognitive development Brain ; Evolution ; MRI Neurospin Scientific result animal sciences; Fri, 22 Nov 2024 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Immunotherapie-structure-HER2-trastuzumab-pertuzumab.aspx Des chercheurs de l’I2BC, en collaboration avec Sanofi, l’IMPMC et l’Institut Pasteur, ont modélisé la structure du complexe associant le récepteur membranaire HER2 avec deux fragments de liaison (Fab) de deux anticorps thérapeutiques dirigés contre cette cible, le trastuzumab et le pertuzumab. Structural biology ; Microscope Researchers SB2SM Scientific result Fri, 08 Nov 2024 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/New-model-redox-regulation-photosystem-I.aspx A team from I2BC has studied the regulation of oxygen reduction to superoxide at photosystem I (PSI) in several redox mutants of the plant A.thaliana, grown during different photoperiods. The results enable to propose a new model of PSI-specific redox regulation, capable of rapid adaptation according to light conditions Photosynthesis SB2SM Scientific result Tue, 05 Nov 2024 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/IBC3-mapping-cognitive-functions-naturalistic-stimuli.aspx Several NeuroSpin researchers have taken part in the Individual Brain Charting (IBC) project, aimed at creating a precise map of the cognitive functions of the human brain. In this third phase, they are using the Fast Shared Response Model to analyze large-scale fMRI data and model responses to natural stimuli involving the visual, auditory and language systems. MRI ; Brain ; Cognition Neurospin Scientific result ; Article Wed, 30 Oct 2024 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Iseult-apres-images-la-publication-scientifique.aspx L’équipe de NeuroSpin en charge de l’acquisition des premières images de cerveau de volontaires à 11,7 teslas a publié dans Nature Methods les détails de son protocole d’étude exploratoire menée à ce champ magnétique inégalé. Brain ; MRI Researchers Neurospin Scientific result ; Article Mon, 28 Oct 2024 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/SplineBeam-algorithme-prediction-champs-pression-ultrasons.aspx Les applications thérapeutiques des ultrasons sont nombreuses, notamment en neurologie. Prédire en temps réel le champ de pression acoustique à appliquer est indispensable. C’est ce que permet de faire l’algorithme SplineBeam développé par une équipe du SHFJ en collaboration avec le CEA-List, NeuroSpin et le CHU Grenoble-Alpes. Diagnosis and innovative treatment ; Brain Researchers Neurospin Scientific result ; Article Thu, 24 Oct 2024 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Micelles-efficacite-radiotherapeutique-tumeurs-radioresistantes.aspx ​Des équipes du SCBM et du SHFJ, en collaboration avec le CEA-Jacob et l’ISMO ont développé une micelle perfluorée biocompatible pour améliorer l’efficacité des radiothérapies et qui serait particulièrement intéressante dans des environnements tumoraux radiorésistants. Diagnosis and innovative treatment ; Cancer Researchers SCBM Scientific result ; Article Cancer;préclinique;théranostique;modèle animal; Wed, 23 Oct 2024 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/neuromodulatory-nuclei-Alzheimer-and-related-disorders.aspx A team from GHU Paris and SHFJ has used brain MRI to study the integrity of the locus coeruleus and nucleus basalis of Meynert in patients with early-onset Alzheimer's disease (AD), age-related TDP-43 encephalopathy (LATE) and fronto-temporal dementia (FTD). Both structures are altered in early AD, LATE and probably FTD, making these neuromodulatory areas potential therapeutic targets Diseases ; Brain ; Cognition ; MRI ; Positron Emission Tomography ; Alzheimer's disease Neurospin Scientific result Wed, 16 Oct 2024 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/PET-image-reconstruction-deep-learning-clearmind-detector.aspx Three DES and DRF laboratories have developed an innovative Machine Learning algorithm to improve the reconstruction of PET images acquired as part of the ClearMind project, a technology based on the detection of gamma photons by a monolithic lead tungstate crystal detector. A step towards more accurate PET imaging Positron Emission Tomography ; Methodologies for life sciences ; Artificial intelligence Irfu Scientific result Mon, 07 Oct 2024 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Microfluidique-IA-detection-resistance-colistine.aspx ​Une collaboration dirigée par le LERI (SPI/DMTS) a mis au point un dispositif de microfluidique en gouttes pour tester rapidement et efficacement la susceptibilité à la colistine, un antibiotique pour lequel des phénomènes de résistance bactérienne ont été observés. L’Intelligence artificielle complète la méthode pour faciliter l’étape d’analyse des images et augmenter la sensibilité du test. Diagnosis and innovative treatment ; Antibiotics Researchers SPI Scientific result ; Article Mon, 30 Sep 2024 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Functional-brain-connectivity-emotional-states-bipolar-disorder.aspx A study conducted by NeuroSpin researchers reveals abnormalities in functional brain connectivity in the sub-nucleus region of the amygdala (emotion center), in patients with bipolar disorder. These anomalies, which depend on whether the patient is depressed or manic, are potential biomarkers of interest. Brain ; MRI ; Cognition ; Diseases Neurospin Scientific result Mon, 30 Sep 2024 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Epigenetique-biomarqueur-therapie-déficit-transporteur-creatine-X.aspx Des résultats obtenus par une équipe du SPI, en collaboration avec CERES Brain Therapeutics et l’Université de Sharjah (Emirats arabes unis), indique que le niveau de méthylation de l’ADN pourrait constituer un biomarqueur intéressant de l’efficacité thérapeutique d’un traitement potentiel du déficit en transporteur de la créatine lié à l’X. Diagnosis and innovative treatment ; Genetic diseases Researchers SPI Scientific result ; Article préclinique;épigénétique;épigénome;modèle animal; Tue, 17 Sep 2024 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/PET-monitoring-central-effects-innovative-smoking-cessation-therapy.aspx A BioMaps team has used PET imaging to monitor glucose metabolism as a marker of the cerebral impact of smoking cessation, as well as the effects of a promising drug-candidate for the treatment of such cessation. By revealing the restoration of normal activity in the brain area associated with craving, these results offer hope for smoking cessation in humans Positron Emission Tomography ; Medical imaging ; Pharmacology ; Brain SHFJ Scientific result Preclinical;animal models;murine model; Thu, 29 Aug 2024 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Structure-transmembrane-region-SARS-CoV-2-nsp3-protein.aspx An I2BC team has revealed the structure of the C-terminal transmembrane region of the SARS-CoV-2 protein nsp3, essential for virus replication. This region self-assembles into hexamers that form molecular pores on the surface of double-membrane vesicles, the sites of viral genome replication. Nsp3 therefore appears to be a promising therapeutic target. Structural biology ; Virus SB2SM Scientific result Thu, 08 Aug 2024 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Associative-learning-complex-auditory-sequences.aspx A NeuroSpin team analyzed the MEG response of volunteers exposed to auditory sequences organized in network. Finding that participants' brain activity was sensitive to the structure of the network, it concluded that learning the structure of auditory sequences involves a single cognitive process, associative learning. Cognition ; Brain ; Learning Neurospin Scientific result Wed, 17 Jul 2024 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Marquage-echange-isotopique-soufre.aspx Une équipe du SCBM met au point une méthode d’échange isotopique du soufre pour le marquage de molécules biologiquement actives. Telle une plateforme isotopique multi-échangeable, le procédé permet également un échange isotopique du carbone et d’hydrogène donnant accès à un grand nombre d’isotopologues. L’équipe met en avant le potentiel de la méthode pour vérifier l’authenticité de molécules organiques commerciales. Chemistry ; Diagnosis and innovative treatment ; Medical imaging Researchers SCBM Scientific result Tue, 09 Jul 2024 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Correlation-structure-cerebellum-cognitive-functions.aspx A collaborative study led by NeuroSpin researchers analyzed anatomical MRI images of 662 young subjects from the Healthy Brain Network cohort, to map different features of cognitive function linked to cerebellar structure. It shows that there is a complex association between key cognitive functions and particular lobules of the cerebellum. Brain ; Cognition ; MRI Neurospin Scientific result Fri, 05 Jul 2024 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Nucleosome-positioning-yeast-genome.aspx A team from I2BC has studied the positioning of nucleosomes in the yeast S cerevisiae genome, using an original mathematical method to analyze next-generation sequencing data. This mapping highlights the role of chromatin remodeling complexes in nucleosome organization. DNA ; Large-scale biology SBIGEM Scientific result Fri, 28 Jun 2024 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/DNA-recombination-lock.aspx Teams from I2BC, Institut Curie and IRB shed light on how the human nuclease MRN works. Structural predictions obtained with AlphaFold2 and confirmed by in vitro and in vivo experiments show that the phosphorylated Sae2/CtIP protein forms a network of interactions with MRN that favours the removal of its autoinhibition. Structural biology ; DNA ; Molecular mechanisms ; Artificial intelligence Researchers SB2SM Scientific result Tue, 25 Jun 2024 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Muscle-biomechanics-ultrasound-elastography.aspx A team from BioMaps (SHFJ) measures for the first time the in vivo local mechanical properties at play in a muscle (elasticity, anisotropy, non-linearity) using a non-invasive method, ultrasonic shear wave elastography. The originality of the approach lies in its ability to perform such measurements in a so complex tissue. Medical imaging ; Physics SHFJ Scientific result Fri, 14 Jun 2024 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/CO2-reduction-catalytic-cycle-porphyrin.aspx Using a range of spectroscopic techniques, researchers at I2BC in collaboration with ICMMO have elucidated the catalytic cycle of a bio-inspired iron porphyrin catalyst, which could form the basis of economically viable solutions for the conversion and recovery of CO2. Green Chemistry ; Bio-inspired catalysis Researchers SB2SM Scientific result ; Article Thu, 13 Jun 2024 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/phototherapy-micells.aspx SCBM researchers have designed nanometric micelles that can be activated by light and constructed by self-assembly of amphiphiles derived from ferrocene, which carries a hidden therapeutic activity in the absence of activation. Chemistry ; Diagnosis and innovative treatment ; Nanomedicine Researchers SCBM Scientific result ; Article Wed, 12 Jun 2024 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/T-lymphocytes-specific-facteur8.aspx A SIMoS team has made a significant breakthrough in understanding the cellular immune response to factor VIII, a protein essential for blood coagulation, by demonstrating for the first time the existence of human FVIII-specific regulatory T cells in the blood of healthy donors. Cellular mechanisms ; Methodologies for life sciences SIMOPRO Scientific result ; Article Fri, 07 Jun 2024 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/disulphide-bridge-radiolabeling.aspx Researchers at BioMaps have developed a "re-bridging agent" for the radiolabelling of biomolecules containing disulphide bridges. Their strategy has enabled several molecules of therapeutic interest to be labelled with fluorine-18, copper-64 and zirconium-89. Chemistry ; Diagnosis and innovative treatment ; Medical imaging Researchers SIMOPRO Scientific result ; Article Fri, 24 May 2024 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/HROB-MCM8-MCM9.aspx Researchers from the AMIG team (I2BC department), in collaboration with the IRB (Switzerland), have modeled the interaction between HROB and the helicases MCM8-MCM9, some mutations of which predispose individuals to infertility or cancer. They demonstrate that HROB promotes the catalytic activity of the MCM8-MCM9 complex but does not play a role in its recruitment or stability. Structural biology ; Molecular mechanisms Researchers SB2SM Scientific result ; Article AlphaFold;AlphaFold2; Wed, 22 May 2024 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Response-intra-tumoral-immunotherapy-by-immunoPET.aspx A team from BioMaps (SHFJ), in partnership with the Gustave Roussy Institute, has used immunoPET imaging to assess the influence of tissue distribution on the efficacy of cancer immunotherapy, administered intra-tumor and intravenously in mice. Intratumoral administration is more effective and reduces overall exposure of organs at risk Medical imaging ; Positron Emission Tomography ; Cancer SHFJ Scientific result preclinical research;animal models; Fri, 19 Apr 2024 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Epigenetics-CAF-1.aspx A team from the I2BC, in collaboration with the Institut Curie and Soleil, has shown that the CAF-1 protein combines flexible regions and rigid modules in its spatial organisation to deposit histones on DNA and effectively couple this process to DNA synthesis. Epigenetics ; Structural biology Researchers SB2SM Scientific result ; Article Tue, 26 Mar 2024 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Neurodevelopmental-model-prediction-psychotic-transition.aspx A NeuroSpin team has built a predictive model for the onset of psychosis using a combination of supervised learning analyses and a model of neuroanatomical age, based on neuroimaging data from healthy subjects and those at risk of psychotic transition. MRI ; Diseases ; Artificial intelligence ; Brain Neurospin Scientific result Thu, 21 Mar 2024 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Nanomicelles-targeted-delivery-prodrug-atherosclerosis.aspx Teams from SCBM and SIMoS (DMTS) have developed nano-micelles for the vectorization of an active principle which regulates cholesterol metabolism towards atherosclerotic lesions. Nanomedicine ; Diseases SIMOPRO Scientific result ; Article preclinic;animal models; Thu, 14 Mar 2024 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Food-allergy.aspx Researchers at the LIAA (SPI/DMTS) have shown that pre- and perinatal exposure of mice to titanium dioxide increases the risk of developing a food allergy, particularly in males. Allergies ; Large-scale biology Researchers SPI Scientific result ; Article omics;Animal;animal models;allergen; Wed, 28 Feb 2024 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Cognitive-neurosciences-perception-of-time.aspx A team from NeuroSpin has recently published 3 papers that address the question of how we perceive time from a cognitive neuroscience perspective, using real-life temporal experiments, laboratory experiments and MEG brainwave measurements indicative of the passage of time, and that shed light on how the brain constructs our experience of lived time. Brain ; Cognition Neurospin Scientific result Tue, 27 Feb 2024 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Diagnosis-acute-hepatic-porphyrias-mass-spectrometry.aspx A collaborative study between SPI and a team from Hôpital Louis Mourier demonstrates the contribution of liquid chromatography coupled with mass spectrometry to the day-to-day analytical needs of a clinical laboratory. Application to the rapid quantification of biomarkers in acute hepatic porphyrias. Diagnosis ; Mass spectrometry ; Biomarkers SPI Scientific result ; Article Fri, 23 Feb 2024 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Methodological-developments-emergence-ultra-high-field-MRI.aspx Researchers at NeuroSpin have recently published 3 articles in Magnetic Resonance in Medicine on their technological and methodological developments that will help meet the challenges of ultra-high field MRI for tomorrow's medical brain imaging. MRI ; Technologies Neurospin Scientific result Mon, 19 Feb 2024 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/First-complete-atlas-chimpanzee-brain-connectivity.aspx NeuroSpin researchers map chimpanzee brain structural connectivity for the first time using diffusion MRI data. New image processing enabled them to create two atlases of deep and superficial white matter connectivity. A step towards a better understanding of the evolution of the hominid brain. Brain ; MRI ; Computing Neurospin Scientific result préclinique; Mon, 12 Feb 2024 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Cryo-EM-ring-BRCA2-HSF2BP.aspx A collaboration involving the I2BC has modelled the structure of the complex between HSF2BP and a fragment of BRCA2, which is essential for DNA repair by homologous recombination. The researchers propose a mechanism for regulating the unexpected ring-like assembly of this complex. Structural biology Researchers SB2SM Scientific result ; Article Thu, 08 Feb 2024 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Quantities-representation-brain-fMRI-UHF.aspx In a study published in Nature Communications, researchers from UNICOG and BAOBAB use high-field functional MRI to reveal the brain areas where the representations of quantities generated by a mental arithmetic operation are encoded. Cognition Researchers Neurospin Scientific result Wed, 31 Jan 2024 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/proteins-proteins-interactions-AlphaFold2.aspx In an article published in Nature Communications, researchers from the I2BC show that applying a fragmentation strategy to the protein partners of assemblies depending on intrinsically disordered regions very significantly improves AlphaFold2's prediction capacity. Structural biology ; Artificial intelligence Researchers SB2SM Scientific result Mon, 29 Jan 2024 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Dyslexia-devices.aspx Devices such as lights and strobe glasses that are supposed to make reading easier for dyslexic people actually have no impact. These are the findings of a study conducted by a team from UNICOG (NeuroSpin) and published in the journal Proceedings Royal Society. Cognition Scientific result ; Article Sun, 28 Jan 2024 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Functionalization-B-subunit-Shigatoxin-vaccine-tool.aspx Researchers at SIMoS (DMTS) describe the synthesis, engineering and evaluation of the properties of the B subunit of bacterial Shiga toxin (STxB), administered mucosally, as a vaccine tool. Their results confirm the value of using a synthetic STxB in an anti-tumor and anti-infectious vaccination strategy. Biotechnology ; Vaccine SIMOPRO Scientific result préclinique; Fri, 26 Jan 2024 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/elasticity-biomarker-biological-tissue-diagnostics.aspx SHFJ researchers have validated the use of a new biomarker, the nonlinear shear modulus, to measure the elasticity of biological tissues, by comparing results obtained using echography with those obtained using MRI imaging and digital simulation. This biomarker is of particular interest for the diagnosis of certain breast cancers. Medical imaging ; MRI ; Diagnosis SHFJ Scientific result Wed, 24 Jan 2024 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/Radiotracor-[18F]DPA-714-epilepsy.aspx A study carried out by the Biomaps laboratory (SHFJ) provides initial evidence to support the use of PET scans using the [18F] DPA-714 radiotracer as an additional tool for the pre-surgical localisation of epileptogenic zones in patients with drug-resistant epilepsy. Researchers SHFJ Mon, 22 Jan 2024 11:00:00 GMT