Assemblages thérapeutiques de nanobodies : préparation, caractérisation et activité biologique in vitro et in vivo // Therapeutic Nanobody Assemblies: Preparation, Characterization, and In Vitro and In Vivo Biological Activity
ABG-132297
ADUM-66386 |
Thesis topic | |
2025-05-29 | Other public funding |
Université d'Orléans
ORLEANS - Centre Val de Loire - France
Assemblages thérapeutiques de nanobodies : préparation, caractérisation et activité biologique in vitro et in vivo // Therapeutic Nanobody Assemblies: Preparation, Characterization, and In Vitro and In Vivo Biological Activity
- Biology
Anticorps, innovation thérapeutiques, récepteurs couplés aux protéines G, Neurobiologie
Antibodies, therapeutic innovation, G protein coupled receptors, Neurobiology
Antibodies, therapeutic innovation, G protein coupled receptors, Neurobiology
Topic description
La thèse proposée a pour but d'étudier des nouveaux composés multivalents (polybodies) comme nanothérapies. Les travaux menés par le doctorant recruté seront principalement focalisés sur l'intégration de fragments d'anticorps appelés nanobodies (NB) dans des assemblages moléculaires et sur l'évaluation de leur activité biologique in vitro avec des méthodes biophysiques (FIDA, nanoBRET, BLI), biochimiques (ELISA, WB) in cellulo (cytométrie en flux, RT-IC, vidéomicroscopie) et ex vivo (microscopie de fluorescence et confocale, HTRF). En s'appuyant sur les travaux précédents, le doctorant va produire des NB recombinants (dans E. coli ou dans des cellules expiCHO de mammifères) adaptés à la bioconjugaison avec des linkers pour obtenir des NB bivalents et biparatopiques, outils permettant d'étudier la dimérisation de récepteurs transmembranaires. De plus, bien que certaines études indiquent que certains fragments d'anticorps peuvent traverser spontanément la BHE, cette propriété dépend probablement de leur séquence et de leur structure. Par conséquent, un autre objectif de la thèse sera de produire des PB trans-bispécifiques afin d'améliorer leur pénétration dans le cerveau.
Le projet se situe à l'interface entre biochimie, biophysique et biologie. L'étudiant-(e) développera des compétences multidisciplinaires allant de l'assemblage de polybodies jusqu'à leur caractérisation biophysique et biologique.
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The proposed PhD project aims to study novel multivalent compounds (polybodies) as nanotherapeutics. The candidate will focus on integrating antibody fragments known as nanobodies (NBs) into an anchoring platform and evaluating their biological activity in vitro using biophysical methods (FIDA, nanoBRET, BLI, HTRF), biochemical techniques (ELISA, Western blot), in cellulo approaches (flow cytometry, RT-IC, video microscopy), and ex vivo analyses (fluorescence and confocal microscopy).
Based on previous work, the student will produce recombinant nanobodies (in E. coli or mammalian expiCHO cells) adapted for bioconjugation with linkers to generate bivalent and biparatopic NBs, which are powerful tools to investigate the dimerization of transmembrane receptors. Furthermore, although some studies suggest that certain antibody fragments may spontaneously cross the blood–brain barrier (BBB), this property likely depends on their sequence and structure. Therefore, another objective of the PhD will be to design and produce trans-bispecific PBs to enhance brain penetration.
This project lies at the interface of biochemistry, biophysics, and biology. The student will develop multidisciplinary skills, ranging from polybody assembly to their biophysical and biological characterization.
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Début de la thèse : 01/10/2025
Le projet se situe à l'interface entre biochimie, biophysique et biologie. L'étudiant-(e) développera des compétences multidisciplinaires allant de l'assemblage de polybodies jusqu'à leur caractérisation biophysique et biologique.
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The proposed PhD project aims to study novel multivalent compounds (polybodies) as nanotherapeutics. The candidate will focus on integrating antibody fragments known as nanobodies (NBs) into an anchoring platform and evaluating their biological activity in vitro using biophysical methods (FIDA, nanoBRET, BLI, HTRF), biochemical techniques (ELISA, Western blot), in cellulo approaches (flow cytometry, RT-IC, video microscopy), and ex vivo analyses (fluorescence and confocal microscopy).
Based on previous work, the student will produce recombinant nanobodies (in E. coli or mammalian expiCHO cells) adapted for bioconjugation with linkers to generate bivalent and biparatopic NBs, which are powerful tools to investigate the dimerization of transmembrane receptors. Furthermore, although some studies suggest that certain antibody fragments may spontaneously cross the blood–brain barrier (BBB), this property likely depends on their sequence and structure. Therefore, another objective of the PhD will be to design and produce trans-bispecific PBs to enhance brain penetration.
This project lies at the interface of biochemistry, biophysics, and biology. The student will develop multidisciplinary skills, ranging from polybody assembly to their biophysical and biological characterization.
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Début de la thèse : 01/10/2025
Funding category
Other public funding
Funding further details
ANR Financement d'Agences de financement de la recherche
Presentation of host institution and host laboratory
Université d'Orléans
Institution awarding doctoral degree
Université d'Orléans
Graduate school
549 Santé, Sciences Biologiques et Chimie du Vivant - SSBCV
Candidate's profile
Le/la candidat(-e) devra avoir été formé(-e) en biochimie, biologie moléculaire et cellulaire ainsi qu'avoir des connaissances en biotechnologie
Master's degree in Biochemistry, Molecular and Cell Biology, Biotechnology, or related disciplines Experience in molecular biology, protein expression and purification, or cell culture is highly desirable Skills in biophysical methods (e.g., BLI, FIDA, BRET) will be considered an asset Motivation to work in an interdisciplinary environment bridging chemistry, biochemistry, pharmacology, and neurobiology Good communication skills in English (written and spoken)
Master's degree in Biochemistry, Molecular and Cell Biology, Biotechnology, or related disciplines Experience in molecular biology, protein expression and purification, or cell culture is highly desirable Skills in biophysical methods (e.g., BLI, FIDA, BRET) will be considered an asset Motivation to work in an interdisciplinary environment bridging chemistry, biochemistry, pharmacology, and neurobiology Good communication skills in English (written and spoken)
2025-06-29
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