Nous recrutons un·e chercheur·e postdoctoral·e expérimenté·e (2-3 ans après la thèse) pour étudier les déterminants cellulaires et moléculaires de l’altération de la régénération épithéliale et de la dysfonction de barrière dans les maladies inflammatoires chroniques de l’intestin (MICI : maladie de Crohn, rectocolite hémorragique) et les troubles métaboliques, avec un focus particulier sur l’obésité.
L’objectif central est de développer et de valider un système microphysiologique d’intestin humain-sur-puce (human gut-on-chip), dérivé de matériel de patients et contrôlé sur le plan environnemental, permettant une interrogation fonctionnelle directe de tissus humains. Au-delà de la modélisation d’une physiopathologie pertinente pour la maladie, la plateforme permettra un phénotypage quantitatif et spécifique au patient des altérations épithéliales (p. ex. dynamique des cellules souches/progénitrices, trajectoires de différenciation, intégrité des jonctions, perméabilité, fermeture/réparation des plaies) et soutiendra une stratification fonctionnelle à visée de médecine personnalisée. In fine, l’intestin-sur-puce constituera un cadre ex vivo pour (i) caractériser les altérations fonctionnelles intestinales propres à chaque patient et (ii) évaluer des réponses individuelles à des ‘drug candidates’, afin de prioriser des stratégies thérapeutiques personnalisées visant à restaurer l’intégrité épithéliale et à favoriser la cicatrisation muqueuse.
Le travail intègre des approches humaines complémentaires, incluant des organoïdes intestinaux et colorectaux dérivés de patients, notre plateforme brevetée de microfluidique « intestin-sur-puce », l’édition fonctionnelle du génome, et l’imagerie 3D à haut contenu.
Research project :
| We invite applications for an experienced Postdoctoral Fellow (2–3 years post-PhD) to investigate the cellular and molecular determinants of impaired epithelial regeneration and barrier dysfunction in inflammatory bowel diseases (IBD ; Crohn’s disease, ulcerative colitis) and metabolic disorders, with a specific focus on obesity.The central objective is to engineer and validate an environment-controlled, patient-derived intestine-on-chip (gut-on-chip) microphysiological system enabling direct functional interrogation of human patient material. Beyond modelling disease-relevant physiology, the platform will deliver quantitative, patient-specific phenotyping of epithelial alterations (e.g., stem/progenitor dynamics, differentiation trajectories, junctional integrity, permeability, wound closure/repair) and support functional stratification for personalised medicine. Ultimately, the intestine-on-chip will serve as an ex vivo framework to (i) characterise individual patient alterations and (ii) evaluate patient-specific responses to candidate interventions, enabling prioritisation of personalised therapeutic strategies aimed at restoring epithelial integrity and promoting mucosal healing.The work integrates complementary human-relevant approaches, including patient-derived intestinal and colorectal organoids, our in-house microfluidic intestine-on-chip platform, functional genome editing, and high-content 3D imaging.The successful candidate will combine quantitative phenotyping with mechanistic perturbation to resolve the cellular events and signalling networks underlying defective regeneration and barrier failure in IBD and obesity. Expected outcomes include mechanistically grounded biomarkers and actionable targets, as well as a validated experimental pipeline for patient-centric testing of barrier-restoring and pro-regenerative strategies. |
CDD 12 mois, renouvelable 2 fois, en temps plein 38h30 hebdomadaires
Structure d'accueil : Institut des Maladies Métaboliques et Cardiovasculaires - U1297 - Délégation Régionale Occitanie Pyrénées
1 avenue Jean Poulhès - 31432 Toulouse Cedex 4
Directeur d'unité : Dominique Langin
Css de rattachement : 3
Responsable d'équipe : Anne BOULOUMIE
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Activités principales :
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Savoir-faire :
Aptitudes :
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Spécificités du poste :
Travail sur tissus humains et matériel dérivé de patients : respect strict des exigences de biosécurité, de traçabilité et de conformité éthique (consentement, procédures institutionnelles, protection des données si applicable).
Flexibilité horaire : possibilité d’horaires non standards, y compris le week-end, en fonction de la disponibilité des échantillons patients et des contraintes liées aux cinétiques/points de mesure expérimentaux.
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Main activities :
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Associates activities :
Collaborate within the PEPR MED-OOC/ENVie consortium to integrate imaging, functional, and multi-omics data for patient stratification and mechanistic inference.
Ensure rigorous documentation and reproducibility (SOPs, electronic lab notebooks, metadata, QC reporting, data stewardship).
Present findings at internal meetings and international conferences.
Contribute substantially to manuscript preparation and (where relevant) grant deliverables.
Apply high standards of good scientific practice, biosafety, and compliance with institutional quality procedures for human samples (traceability, consent/ethics constraints, and data protection where applicable).
Mentor and support junior researchers/trainees as appropriate (e.g., PhD/MSc students).
Candidate profile and knowledge :
PhD in Cell Biology, Molecular Biology, Biomedical Sciences, Bioengineering, or a related field.
2–3 years of postdoctoral experience demonstrating autonomy in experimental design, execution, and publication.
Strong expertise in epithelial biology, stem cells, regeneration, and/or gastrointestinal pathophysiology.
Demonstrated experience working with patient-derived material and/or human tissue handling constraints.
Proven expertise in genome editing and genetic perturbation approaches (CRISPR/Cas9; gene delivery).
Proficiency in advanced microscopy and quantitative 3D image analysis.
Documented experience with human intestinal/colorectal organoid culture (strongly preferred).
Background in transcriptomics/single-cell and/or bioinformatics is an asset.
Excellent analytical, organisational, and cross-disciplinary communication skills; ability to work independently and collaboratively.
Technical skills / Methodology :
Advanced human intestinal/colorectal organoid culture and QC (traceability, batch management, reproducibility).
Genome editing and functional genetics (CRISPR/Cas9; CRISPRi/a where relevant; viral/non-viral gene delivery).
High-resolution 3D imaging (confocal, light-sheet) and quantitative image analysis workflows.
Experience with barrier/regeneration functional assays and robust experimental design for nested/hierarchical datasets.
Track record of publications in peer-reviewed journals.
International experience is a plus.
Fluency in English (written and spoken).
Knowledge of hygiene, biosafety, and health-and-safety regulations for work with human samples.
Position-specific requirements / constraints :
Work with human tissues and patient-derived material (biosafety and ethical compliance required).
May require flexible/non-standard working hours, including weekends, depending on patient sample availability and experimental timepoints
Application deadline: March 11, 2026
Contact : audrey.ferrand@inserm.fr
Please submit (i) a CV and (ii) a cover letter, and provide contact details for at least two referees. Reference letters are not requested at the application stage.
Selection process :
Shortlisted candidates will be invited to a video interview during the second half of March. Finalists (2–3 candidates) will be proposed an on-site interview and lab visit during the last week of March, prior to the final decision.
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