Author

Catherine Postic

Centre National de la Recherche ScientifiqueORCID 0000-0002-1875-6960Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Physiology· 3 Cell Biology· 1 Pathology· 1

Signature Assays, Organisms & Methods

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Approach:experimental assay· 5 Organism:mouse· 5 Research Focus:differential expression· 4 Assay:bulk RNA-seq· 3 Research Focus:cell type annotation· 3 Research Focus:gene regulatory network inference· 2 Research Focus:metabolism & bioenergetics· 2 Research Focus:cell signaling & trafficking· 1

Frequent Co-Authors

Alexandra MontagneriD· 4 shared Anne FougeratiD· 4 shared Arnaud PolizziiD· 4 shared Claire Naylies· 4 shared Frédéric Lasserre· 4 shared Hervé GuillouiD· 4 shared Marion RégnieriD· 4 shared Nicolas LoiseauiD· 4 shared

Activity by Year

2019-2025 · peak 4/yr

Co-Author Collaboration Network

10 top collaborators · 45 mutual co-author links

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4 shared papersPhysiology

Alexandra MontagnerORCID

Mutual co-authors in cluster

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5 papers

Recent·Most cited

PhysiologybioRxivPreprintDec 9, 2025

Hepatocyte ERα orchestrates sex-specific liver adaptation to fasting and feeding states

Blandine Tramunt, Marie-Lou Calmy, Arnaud Polizzi…·Alexandra Montagner

This study shows hepatocyte ERα regulates sex-specific liver responses to fasting and feeding, affecting gene expression and metabolic pathways differently in males and females.

DOI 10.64898/2025.12.05.692559

mousebulk RNA-seq

𝕏 PostBluesky

PhysiologybioRxivPreprintOct 22, 2025

Hepatocyte FGF21 is not required for fasting-induced metabolic responses but guides protein appetite after energy depletion

Justine Bruse, Clothilde Marbach, Arnaud Polizzi…·Anne Fougerat

DOI 10.1101/2025.10.22.683899

mousebulk RNA-seq

𝕏 PostBluesky

PhysiologybioRxivPreprintSep 29, 2025

The gut insulin receptor acts as gatekeeper of intestinal barrier integrity

Florian Sicherre, Dalale Gueddouri, Michèle Caüzac…·Sandra Guilmeau

This study shows that gut insulin receptor loss increases intestinal permeability and susceptibility to infections by impairing Paneth cell function and intestinal stem cell homeostasis.

1 citation

mouseproteomics

𝕏 PostBluesky

Cell BiologyPLoS BiologyPeer-reviewedApr 14, 2025

p110alpha-dependent hepatocyte signaling is critical for liver gene expression and its rewiring in MASLD

Marion Régnier, Arnaud Polizzi, Tiffany Fougeray…·Hervé Guillou

This study investigates the role of p110alpha in hepatocyte signaling, showing its critical impact on liver gene expression and its rewiring in MASLD.

4 citations

mousebulk RNA-seq

𝕏 PostBluesky

PathologybioRxivPreprintJan 18, 2019

Hepatocyte-specific deletion of Pparα promotes NASH in the context of obesity

Marion Régnier, Arnaud Polizzi, Sarra Smati…·Alexandra Montagner

This study shows that deleting Ppar in hepatocytes promotes NASH in obese mice without glucose intolerance, highlighting the role of extra-hepatocyte PPAR in metabolic responses to HFD.

DOI 10.1101/488031

mouseexperimental assay

𝕏 PostBluesky