Michele Wölk
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michelewoelk.bsky.social
Michele Wölk
@michelewoelk.bsky.social
💜 Addicted to Mass Spectrometry
👩🏼‍🔬 lipidomics, ferroptosis, lipid metabolism, lipid droplets, LC-MS, MSI
👩🏻‍💻 PostDoc Fedorova Lab @ TU Dresden
Pinned
Happy to share our latest #Lipidomics results: Together with Patricia Prabutzki & @fedorovalab.bsky.social we looked at lipidome remodeling along development of fibro-calcific aortic valve disease. Turns out, it is quite different in male & female patients!
tinyurl.com/2bpujp8p
Sex-specific lipidomic signatures in aortic valve disease reflect differential fibro-calcific progression - Nature Communications
Fibro-calcific aortic valve disease is closely interlinked with dyslipidemia. Here, the authors used quantitative lipidomics to profile the metabolic trajectories in human aortic valves, and found tha...
tinyurl.com
Reposted by Michele Wölk
Excited to share my postdoc work @olzmannlab.bsky.social! We found lipid droplets, the cell’s lipid storage depots, are subject to oxidative damage and are protected by FSP1. Loss of FSP1 triggers droplet peroxidation and cell death, revealing a new layer of lipid quality control!

shorturl.at/B5XYD
FSP1-mediated lipid droplet quality control prevents neutral lipid peroxidation and ferroptosis - Nature Cell Biology
Lange et al. identify a lipid droplet quality control pathway in which FSP1 safeguards stored neutral lipids from lipid peroxidation, thereby preventing the induction of ferroptosis.
www.nature.com
October 29, 2025 at 8:45 PM
Reposted by Michele Wölk
Excited to share our study out in @natcellbio.nature.com! Led by @mikelangelipid.bsky.social, we identify the first #LipidDroplet lipid quality control pathway: LD-localized FSP1 protects stored lipids from oxidative damage and prevents LD-initiated #ferroptosis.
www.nature.com/articles/s41...
FSP1-mediated lipid droplet quality control prevents neutral lipid peroxidation and ferroptosis - Nature Cell Biology
Lange et al. identify a lipid droplet quality control pathway in which FSP1 safeguards stored neutral lipids from lipid peroxidation, thereby preventing the induction of ferroptosis.
www.nature.com
October 29, 2025 at 5:21 PM
Reposted by Michele Wölk
🚨Preprint alert 🚨

We identify riboflavin (vitamin B₂) as a key modulator of ferroptosis sensitivity via stabilizing FSP1 & recycling lipid-soluble antioxidants.

www.biorxiv.org/content/10.1....

pls check @olzmannlab.bsky.social

www.biorxiv.org/content/10.1...

#ferroptosis #FSP1 #antioxidants
Riboflavin metabolism shapes FSP1-driven ferroptosis resistance
Membrane protection against oxidative insults is achieved by the concerted action of glutathione peroxidase 4 (GPX4) and endogenous lipophilic antioxidants such as ubiquinone and vitamin E. Deficienci...
www.biorxiv.org
August 6, 2025 at 8:38 AM
Reposted by Michele Wölk
Happy to finally share my last contribution of my PhD work on protein carbonylation. These diverse and low abundant non-enzymatic PTMs have strong implications in protein structure. Here we show how we managed to consistently detect them in serum of 68 individuals.

pubs.acs.org/doi/10.1021/...
Screening of Protein Carbonylation Sites in Human Serum by Ion Mobility Mass Spectrometry
Excessive oxidative stress, associated with various diseases, can induce protein carbonylation-nonenzymatic modifications involving aldehyde or keto group formation. These modifications are structural...
pubs.acs.org
June 16, 2025 at 10:59 AM
Happy to share our latest #Lipidomics results: Together with Patricia Prabutzki & @fedorovalab.bsky.social we looked at lipidome remodeling along development of fibro-calcific aortic valve disease. Turns out, it is quite different in male & female patients!
tinyurl.com/2bpujp8p
Sex-specific lipidomic signatures in aortic valve disease reflect differential fibro-calcific progression - Nature Communications
Fibro-calcific aortic valve disease is closely interlinked with dyslipidemia. Here, the authors used quantitative lipidomics to profile the metabolic trajectories in human aortic valves, and found tha...
tinyurl.com
June 4, 2025 at 9:27 AM
Reposted by Michele Wölk
Please repost: Deadline extended until May 1st - join us for discussing cutting-edge cardiometabolic basic and translational research!

Outstanding speaker lineup, highly interactive program, ca. 35 short talks selected from abstracts, and the most beautiful venue at Lake Starnberg: eas-elc.org
🚨 Abstract deadline 🚨 48th European Lipoprotein Club: eas-elc.org 👉 April 24th. If you love metabolism and related disorders this meeting is for you. Speakers: Ana Paula Arruda, Oliver Bruns, Antje Körner, Claudia Monaco, and Keynote Phil Scherer plus 35 talks selected from abstracts!
Please repost
April 25, 2025 at 9:57 AM
Reposted by Michele Wölk
We will be hosting the first @mzmine.bsky.social Community Meeting at @iocbprague.bsky.social. Please register if you wish to learn about the latest developments in mzmine. More info: docs.google.com/document/d/1...
February 17, 2025 at 4:21 PM
Reposted by Michele Wölk
Job alert 🧪 ‼️ Hi #teammassspec: In our #RTG2467 @unihalle.bsky.social we have a job opening for a PhD student in my group! 🎉 If you want to do cool stuff in cross-linking mass spectrometry of the tumor suppressor p53, please take a look:
personal.verwaltung.uni-halle.de/jobs/wissmi/
Please RT!
Externe Stellenausschreibungen- Wissenschaftliche Mitarbeiterinnen und Mitarbeiter, Ärzte und Lehrkräfte für besondere Aufgaben
personal.verwaltung.uni-halle.de
February 7, 2025 at 10:33 AM
Reposted by Michele Wölk
Exciting times indeed! With so many new tools entering the field, we can hope to find the answers to many questions in lipid cell biology! Was happy to contribute to this viewpoint.
February 5, 2025 at 8:33 PM
Reposted by Michele Wölk
It’s incredibly hard to study lipids in biological membranes on the nanoscale. You need near-perfect information on both membrane ultrastructure and lipid density, which usually isn’t attainable. Lipid-CLEM brought to you by @mathilda95.bsky.social changes that.
www.biorxiv.org/content/10.1...
January 31, 2025 at 10:28 AM
Reposted by Michele Wölk
Ever wondered how #mitochondria fragmentation comes about during #ferroptosis ? Read our new paper on Drp1-mediated promotion of ferroptotic #celldeath. Great @cecad.bsky.social collaboration with Ana Garcia Saez!

rdcu.be/d7L66
Ferroptosis triggers mitochondrial fragmentation via Drp1 activation
Cell Death & Disease - Ferroptosis triggers mitochondrial fragmentation via Drp1 activation
rdcu.be
January 28, 2025 at 9:46 AM
Reposted by Michele Wölk
I am excited to report the preprint of my postdoc work in the @olzmannlab.bsky.social! We have discovered the first lipid droplet quality control pathway with broad implications for lipid physiology and diseases associated with LD accumulation and oxidative stress! #lipidtime

shorturl.at/2HqFd
January 8, 2025 at 1:46 PM
Reposted by Michele Wölk
FSP1-mediated lipid droplet quality control prevents neutral lipid peroxidation and ferroptosis https://www.biorxiv.org/content/10.1101/2025.01.06.631537v1
January 7, 2025 at 12:30 PM