Yannick Frey
yannickfrey.bsky.social
Yannick Frey
@yannickfrey.bsky.social
PostDoc in @hessofarhan.bsky.social lab @meduniibk.bsky.social | Studying ER protein export, membrane trafficking, signal transduction | space flight enthusiast
Reposted by Yannick Frey
Our paper is now out in Nature Communications! Phosphorylation-coupled autoregulation of TANGO1 and Sec16A maintains functional ER exit sites. rdcu.be/eRNLt
TANGO1 and Sec16 need a Goldilocks level of phosphorylation — not too high, not too low.
November 26, 2025 at 4:53 AM
Reposted by Yannick Frey
Quiescent cells stay alive by eating less. They downregulate amino acid transporters to match reduced demand. When this brake fails -> cell death & disease.
More info in our new paper 👇
October 20, 2025 at 4:03 PM
Reposted by Yannick Frey
ER exit sites are dynamic ER subdomains that integrate signals, reshape membranes and steer secretion. Twelve groups in the field came together to map their diversity, regulation, unanswered questions and future directions.
www.nature.com/articles/s41...
Towards a unified framework for the function of endoplasmic reticulum exit sites - Nature Reviews Molecular Cell Biology
Endoplasmic reticulum exit sites (ERES) are specialized ER subdomains that regulate the export of secreted cargo. This Roadmap explores how ERES integrate biochemical and mechanical signals to coordinate trafficking and proposes a multidisciplinary strategy to investigate their function, including in disease.
www.nature.com
September 30, 2025 at 5:50 AM
Reposted by Yannick Frey
Exciting preprint on organelle mechanoadaptation from Stephanie Miserey and Felix Campelo @felixmendu.bsky.social! Extracellular forces modulate Golgi secretory output by tuning carrier biogenesis via microtubule acetylation, DAG, and PKD. Golgi is a mechanoregulator!
www.biorxiv.org/content/10.1...
September 3, 2025 at 11:52 AM
Reposted by Yannick Frey
Go check out the latest preprint from Giulia Zanetti's lab. @dr-downes.bsky.social used cryo-tomography to directly visualize COPI and COPII coated vesicles in situ at unprecedented resolution in human cells. Amazingly beautiful, rigorous, insightful work.
www.biorxiv.org/content/10.1...
Multi-scale Molecular Imaging of Human Cells reveals COPI and COPII Vesicles at ER Exit Sites
Trafficking from the endoplasmic reticulum to the Golgi apparatus comprises the first steps toward the correct localization of 30% of eukaryotic proteins. Coat protein complexes COPII and COPI are inv...
www.biorxiv.org
August 4, 2025 at 11:35 AM
Reposted by Yannick Frey
Multi-scale Molecular Imaging of Human Cells reveals COPI and COPII Vesicles at ER Exit Sites www.biorxiv.org/content/10.1...
Multi-scale Molecular Imaging of Human Cells reveals COPI and COPII Vesicles at ER Exit Sites
Trafficking from the endoplasmic reticulum to the Golgi apparatus comprises the first steps toward the correct localization of 30% of eukaryotic proteins. Coat protein complexes COPII and COPI are inv...
www.biorxiv.org
July 31, 2025 at 2:58 PM
Reposted by Yannick Frey
Our review on the role of ER proteostasis in bone disease is out today in Trends in Molecular Medicine www.cell.com/trends/molec...
The endoplasmic reticulum proteostasis network and bone disease
Bone homeostasis relies on the coordinated activity of osteoblasts and osteoclasts that balances bone formation and resorption, and of osteocytes for biomechanical sensing and hormone secretion. A key...
www.cell.com
July 11, 2025 at 9:22 AM
Reposted by Yannick Frey
Our new paper is out in Leukemia on Targeting proteostasis in multiple myeloma through inhibition of LTK. Thanks to Ludvig and Thea for this great collaborative work
rdcu.be/evyfX
Targeting proteostasis in multiple myeloma through inhibition of LTK
Leukemia - Targeting proteostasis in multiple myeloma through inhibition of LTK
rdcu.be
July 9, 2025 at 5:55 PM
Reposted by Yannick Frey
Reposted by Yannick Frey
Just stumbled upon a German tongue-twister song by Bodo Wartke… about the sexiest cell organelle. Yes, endoplasmic reticulum - your moment has come.
youtube.com/shorts/EP5pd...
Das endoplasmatische Retikulum
YouTube video by Bodo Wartke
youtube.com
June 7, 2025 at 9:54 AM
Reposted by Yannick Frey
Excited to present our unpublished data tomorrow on how Mechanosesing at the Endoplasmic Reticulum regulates Proteostasis. #Organelles #Mechanobiology
April 23, 2025 at 11:36 AM
Reposted by Yannick Frey
Amazing microscopy from Bewersdorf/Rothman groups shows golgins in a striking four-layered structure at the Golgi rim. Biochemical reconstitution shows long filaments. Does a Golgi stack form due to golgin filament properties rather than dedicated stacking proteins?
www.biorxiv.org/content/10.1...
March 29, 2025 at 9:02 PM
Reposted by Yannick Frey
But wait: Rho and Rac, the ultimate cellular GPS were completely reversed of what is in lamellipodia migration! RhoA dominates the front and Rac was driving the back.
#cellmigration
March 10, 2025 at 3:36 AM
Potential breakthrough in KRAS-targeted drug development: Discovery of BBO-8520, a First-In-Class Direct and Covalent Dual Inhibitor of GTP-Bound (ON) and GDP-Bound (OFF) KRASG12C 🤓

aacrjournals.org/cancerdiscov...
Discovery of BBO-8520, a First-In-Class Direct and Covalent Dual Inhibitor of GTP-Bound (ON) and GDP-Bound (OFF) KRASG12C
BBO-8520, a dual inhibitor of KRASG12C in its GTP- and GDP-bound states, has a novel mechanism of action that enables effector blockade and optimal target coverage, even in growth factor activated sta...
aacrjournals.org
March 4, 2025 at 7:01 PM
Reposted by Yannick Frey