Author

Valérie Petit

Université Paris-SudORCID 0000-0003-1645-9396Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Cell Biology· 1 Developmental Biology· 1 Molecular Biology· 1

Signature Assays, Organisms & Methods

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Assay:bulk RNA-seq· 2 Research Focus:cell type annotation· 2 Research Focus:differential expression· 2 Organism:human· 2 Organism:mouse· 2 Approach:statistical model· 2 Research Focus:drug response / drug discovery· 1 Approach:experimental assay· 1

Frequent Co-Authors

Lionel LarueiD· 3 shared Zackie AktaryiD· 3 shared Évelyne SageiD· 2 shared Jérémy H. RaymondiD· 2 shared Alfonso BellacosaiD· 1 shared Colin R. GodingiD· 1 shared Delphine Champeval· 1 shared Franck GesbertiD· 1 shared

Activity by Year

2021-2026 · peak 1/yr

Co-Author Collaboration Network

10 top collaborators · 28 mutual co-author links

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3 shared papersCell Biology

Lionel LarueORCID

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3 papers

Recent·Most cited

Cell BiologybioRxivPreprintOct 4, 2026

BRN2 suppresses stress-induced hair greying

Jérémy H. Raymond, Madeleine Le Coz, Zackie Aktary…·Lionel Larue

This study identifies BRN2 as a regulator of melanocyte stem cell resilience under genotoxic stress, showing its role in preventing irradiation-induced hair greying.

DOI 10.64898/2026.09.28.754993

mousehuman

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Molecular BiologyJournal of Cell SciencePeer-reviewedOct 23, 2024

UVB radiation suppresses Dicer expression through β-catenin

Zackie Aktary, Valérie Petit, Irina Berlin…·Lionel Larue

This study shows UVB radiation reduces Dicer expression via activation of the WNT/β-catenin pathway and direct transcriptional repression.

3 citations

humanbulk RNA-seq

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Developmental BiologyDevelopmentPeer-reviewedDec 8, 2021

Stabilization of β-catenin promotes melanocyte specification at the expense of the Schwann cell lineage

Sophie Colombo, Valérie Petit, Roselyne Y. Wagner…·Lionel Larue

The paper shows that activating β-catenin in Schwann-cell precursors during a specific developmental window promotes melanocyte specification over Schwann cell fate.

19 citations

mouseexperimental assay

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