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Abdou Rachid Thiam

@abdourachidthiam.bsky.social
173 followers 150 following 46 posts

@CNRS Research Director @ENS_ULM. Interested in Droplets, Metabolism, Organelles, Lipids, BioPhysics, Microfluidics & Co, 🇸🇳

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Abdou Rachid Thiam @abdourachidthiam.bsky.social · 05/08/2026
For decades, the field has known that when ER cholesterol increases, SCAP binds INSIG and SREBP2 is silenced. In our new work, we propose that cholesterol esterification provides the missing physical mechanism.
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Abdou Rachid Thiam @abdourachidthiam.bsky.social · 28/09/2025
The second manuscript shows that lateral steric repulsion is a key factor controlling protein movement from the ER to lipid droplets. This mechanism can prevent some monotopic ER proteins from reaching LDs, or fine-tune their concentration there.
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Abdou Rachid Thiam @abdourachidthiam.bsky.social · 28/09/2025
Seipin beyond LDs: We’re only beginning to uncover what the vital ER protein seipin does beyond shaping lipid droplets. Our work also shows that it tunes the balance between sphingolipids and glycerolipids in the ER, an equilibrium crucial for protein secretion, notably of Cav1.
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