Stéphane Ravanel

Effects of manganese dioxide on macrophages under different exposure schemes

This study investigates the effects of manganese dioxide on macrophages under repeated exposure, finding mitochondrial dysfunction, oxidative stress, and inflammation.

Integrated cellular and molecular responses to uranium chemotoxicity in the metal-tolerant microalga Coelastrella sp. PCV

This study investigates uranium toxicity in the metal-tolerant microalga Coelastrella sp. PCV using multi-omics and imaging, revealing sequestration mechanisms and gene network rewiring.

Chloroplast-mitochondria synergy modulates responses to iron limitation in two Thalassiosira diatom species

This study compares how two Thalassiosira diatom species respond to iron limitation by examining chloroplast-mitochondrial coupling through proteomics and imaging.

The devil lies in the details: small structural and chemical changes in iron oxide pigments largely alter the biological outcomes in macrophages

This study shows that structural and chemical differences in iron oxide pigments lead to distinct biological effects in macrophages, even when administered in equal amounts.

Identification of uranyl-binding proteins in Arabidopsis thaliana cells exposed to uranium: Insights from a metalloproteomic analysis and characterization of Glycine-Rich RNA-binding Protein 7 (GRP7)

This study identifies 57 uranyl-binding proteins in Arabidopsis thaliana cells, with GRP7 showing specific U(VI) binding and interference with RNA binding, suggesting a role in uranium toxicity.

Beyond the ink: cellular and molecular effects of iron-based pigments on macrophages

The paper investigates the effects of red and black iron oxide pigments on macrophages, finding that red iron oxide causes mitochondrial dysfunction, oxidative stress, and pro-inflammatory cytokine secretion.

Subcellular ToF-SIMS imaging of the snow alga Sanguina nivaloides by combining high mass and high lateral resolution acquisitions

This study combines high lateral and mass resolution ToF-SIMS imaging with multivariate analysis to map subcellular elements and molecules in Sanguina nivaloides, revealing insights into phosphorus homeostasis.

Dynamics of the membrane- and cell wall-associated proteome of Arabidopsis thaliana roots in response to uranium stress

This study identifies 458 differentially accumulated proteins in Arabidopsis roots under uranium stress, revealing changes in cell wall dynamics, metal transport, and stress responses.