Brian DeFelice
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briancdefelice.bsky.social
Brian DeFelice
@briancdefelice.bsky.social
Father, scientist (#TeamMassSpec), metabolomics/lipidomics, snowboarder, dog lover, CZ Biohub, Fiehn Lab alum
Reposted by Brian DeFelice
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 Brian DeFelice
Interested in a co-authorship?
We’re building a tool for repository-scale untargeted #metabolomics and #exposomics of #environmental data. To make it the best it can be, we’re looking for people willing to share high-resolution LC-MS/MS (DDA) data from #water, #soil, #sediment, and related samples.
August 26, 2025 at 7:51 PM
Reposted by Brian DeFelice
Join us at Metabolomics 2025 for our workshop -> W10: EMN – MetaboMentors!

Grow as a mentor or mentee through insights, tools & global perspectives.

📅 Monday, June 23rd, 8:15 - 10:15 in South Hall 2
🔗 www.metabolomics2025.org/workshops
🎤 #EMN #MetaboMentors #Mentorship #Metabolomics2025
June 10, 2025 at 2:40 PM
Awesome technology and application! Viral infection mediates astounding protein relocalization. I wonder, what else might be moving around when cells are infected?
Our approach resolves proteomics dynamics. Check out how the proteome is remodeled upon infection with HCoV-OC43.
Turns out that protein relocalization is largely orthogonal to regulation at the protein abundance level.
2/3
January 14, 2025 at 4:47 PM
Great way for early career folks to contribute to the field and make connections with editors
December 12, 2024 at 4:35 PM
If your lab is using a Thermo LCMS consider trying our tool Rapid QC-MS for automated QC of internal and external standards. Check out our recent publication in Analytical Chemistry: doi.org/10.1021/acs....
Git: github.com/czbiohub-sf/...
User guide: czbiohub-sf.github.io/Rapid-QC-MS/ #OpenScience
Rapid QC-MS: Interactive Dashboard for Synchronous Mass Spectrometry Data Acquisition Quality Control
Consistently collecting high-quality liquid chromatography-coupled tandem mass spectrometry (LC-MS/MS) data is a time-consuming hurdle for untargeted workflows. Analytical controls such as internal an...
doi.org
December 4, 2024 at 12:18 AM