Author

Isabelle Caldelari

Centre National de la Recherche ScientifiqueORCID 0000-0002-1427-4569Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Microbiology· 3

Signature Assays, Organisms & Methods

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Approach:experimental assay· 3 Research Focus:cell signaling & trafficking· 2 Organism:bacteria (other)· 1 Assay:bulk RNA-seq· 1 Organism:C. elegans· 1 Research Focus:chromatin & epigenetic regulation· 1 Research Focus:development & morphogenesis· 1 Assay:DNA methylation· 1

Frequent Co-Authors

Marion Blum· 2 shared Pascale RombyiD· 2 shared Adeline Humbert· 1 shared Arianna Tisba· 1 shared Blum Marion· 1 shared Claire Toffano‐NiocheiD· 1 shared Daniel GautheretiD· 1 shared David LalaounaiD· 1 shared

Activity by Year

2025-2026 · peak 2/yr

Co-Author Collaboration Network

10 top collaborators · 19 mutual co-author links

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2 shared papersMicrobiology

Marion Blum

Mutual co-authors in cluster

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3 papers

Recent·Most cited

MicrobiologyNucleic Acids ResearchPeer-reviewedSep 7, 2026

A Zur-dependent regulatory RNA involved in maintaining zinc homeostasis in Staphylococcus aureus

Mathilde Charbonnier, Hugo Racine, Samuel Probst-Lotze…·David Lalaouna

This study identifies two sRNAs in Staphylococcus aureus that regulate zinc homeostasis, showing their role in Zn-sparing responses and adaptation to metal limitation.

1 citation

bacteria (other)DNA methylation

𝕏 PostBluesky

MicrobiologybioRxivPreprintJul 24, 2025

Quorum sensing dependent repression of the Staphylococcus aureus transcription termination factor Rho is necessary for pathogenicity

Laura Barrientos, Marion Blum, Florence Couzon…·Isabelle Caldelari

The paper shows that quorum sensing-dependent repression of Rho in S. aureus during stationary phase activates exotoxins and affects virulence-related processes.

DOI 10.1101/2025.07.24.666493

humanbulk RNA-seq

𝕏 PostBluesky

MicrobiologybioRxivPreprintApr 15, 2025

Deciphering the RNA-based regulation mechanism of the phage-encoded AbiF system in Clostridioides difficile

Marion Saunier, Adeline Humbert, Victor Kreis…·Olga A. Soutourina

The paper identifies a new AbiF-like system in C. difficile and shows its regulation by a non-coding RNA through RNA-protein interactions.

2 citations

C. elegansproteomics

𝕏 PostBluesky