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Jacob Corn

@jcornlab.bsky.social
519 followers 112 following 52 posts

Genome editing, functional genomics, and cells figuring out how to eat themselves without dying. Professor of Genome Biology at ETH Zürich.

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Jacob Corn @jcornlab.bsky.social · 14/07/2026
Do you work in #cancer and feel behind-the-curve in #CRISPR state of the art? Get up to speed fast with this review! Huge kudos to Joshua Casan, Samuel Grigg, and Carolyn Shembrey for heavy lifting to pull this together. www.nature.com/articles/s41...
nature.com
CRISPR in clinical oncology: translational advances from molecular diagnostics to therapeutics - Nature Reviews Clinical Oncology
CRISPR–Cas technologies provide a modular, programmable platform for sequence-specific targeting of DNA or RNA and have advanced from experimental molecular biology tools to clinical translation. This...
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Jacob Corn @jcornlab.bsky.social · 30/06/2026
Do you need a super active #CRISPR Cas for in vivo editing? I have not one, but two options for you. Activities rival SpyCas9, but they fit into an scAAV. Check out our latest paper, co-led by Fedor Gorbenko and Irene Sala. Just out in Genome Research. link.springer.com/article/10.1...
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Jacob Corn @jcornlab.bsky.social · 03/06/2026
I'm very excited to be part of the new #NCCR Children & Cancer. This amazing group spans all of #Switzerland to unite researchers & clinical practitioners to tackle deadly childhood cancers. Website is live today - stay tuned for #hiring and research updates childrenandcancer.ch
childrenandcancer.ch
NCCR Children & Cancer
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Pedro Beltrao @pedrobeltrao.bsky.social · 29/01/2026
New lab preprint - Common and rare variant studies for the same trait identify different genes and here Diederik Laman Trip developed a protein network AI enconding to investigate if traits studied by different approaches converge on the same molecular pathways www.biorxiv.org/content/10.6...
biorxiv.org
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Jacob Corn @jcornlab.bsky.social · 28/05/2026
The preliminary program and registration is open for SwissPR 2026, happening in Basel at the Biozentrum on 30th June. Hear from @jpkbravo.bsky.social , Jonathan Schmid-Burgk, Julian Grünewald, @martinpacesa.bsky.social, and more. Register now at www.swisspr-symposium.uzh.ch/en.html
swisspr-symposium.uzh.ch
SWISSPR Symposium on Genome and Transcriptome Engineering | SWISSPR Symposium on Genome and Transcriptome Engineering | UZH
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Kenneth Loi @kenjmloi.bsky.social · 27/04/2026
Excited to share our discovery of a new programmable RNA-guided DNA-targeting system hiding inside bacteriophages that predates CRISPR. We call it VIPR (Viral Interference Programmable Repeat), and it uses an entirely new logic to find its targets. Thread + link below.
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Jacob Corn @jcornlab.bsky.social · 18/03/2026
This story is from the same Eric Aird who just published on the role of ERCC6L2 at staggered DSBs. The guy is on fire! And starting to plan his next steps afer his postdoc (hint hint to anyone looking to hire an amazing scientist and mentor).
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Jacob Corn @jcornlab.bsky.social · 18/03/2026
We saw the same SP100-dependent toxicity in cells from VODI patients who lack SP110. Regulated condensate disassembly may be a general requirement for maintaining cellular health!
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Jacob Corn @jcornlab.bsky.social · 18/03/2026
This phenomenon is relevant to any situation where the balance of SP110 versus SP100 expression is perturbed. Not just via interferon upregulation. SUMOylation is also a key regulator of toxicity.
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Jacob Corn @jcornlab.bsky.social · 18/03/2026
Using cryo-EM and AlphaFold, we found that SP110 physically binds SP100 via their CARD domains. In healthy cells, this interaction sequesters SP100 and dissolves PML bodies in mitosis. Without SP110, SP100 oligomerizes and wreaks havoc on the genome.
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Jacob Corn @jcornlab.bsky.social · 18/03/2026
What happens when SP110 is missing? SP100 becomes a "toxin." When upregulated, it forms large oligomers that fail to disassemble and persist into mitosis. These persistent SP100-PML bodies coat segregating chromosomes, causing massive DNA damage and genomic instability.
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Jacob Corn @jcornlab.bsky.social · 18/03/2026
The story started with a genome-wide CRISPRi screen for regulators of the innate immune response. We found that SP110 is a potent inhibitor of interferon-driven cell death. It specifically counteracts the toxic activity of another speckled protein, SP100.
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Jacob Corn @jcornlab.bsky.social · 18/03/2026
Proper organelle regulation during mitosis is a must, but how do membrane-less condensates like PML bodies behave during cell division? In work led by Eric Aird, we found the balance of speckled proteins SP110 & SP100 to be the key. doi.org/10.1038/s415...
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Jakob Farnung @jakobfarnung.bsky.social · 18/03/2026
The E3 ubiquitin ligase mechanism specifying target-directed microRNA degradation (TDMD) is now published! 🎉🍾 We, @bartellab.bsky.social and Schulman lab, describe how 2-RNA factors control protein degradation by recruiting an E3 ligase. @mpibiochem.bsky.social www.nature.com/articles/s41...
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Jacob Corn @jcornlab.bsky.social · 12/03/2026
ERCC6L2 acts as a guardian during repair of staggered DSBs. This sheds light on ERCC6L2 mutations linked with BMF and leukemia and highlights caution for genome-editing approaches that generate DNA overhangs.
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Jacob Corn @jcornlab.bsky.social · 12/03/2026
What does ERCC6L2 actually do? It counteracts the activity of the MRN complex (MRE11–RAD50–NBS1), limiting excessive DNA end resection and promoting accurate end joining.
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Jacob Corn @jcornlab.bsky.social · 12/03/2026
This work was led by Eric Aird, almuseben.bsky.social and sebasiegner.bsky.social in an amazing collaboration w/ spjacksongroup.bsky.social, cejkalab.bsky.social, Toni Cathomen and IBSAL.
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Jacob Corn @jcornlab.bsky.social · 12/03/2026
Many genome-editing tools work by cutting DNA - but the shape of the cut matters. Using genome-wide screening, we show ERCC6L2 is specifically required to maintain repair fidelity at staggered DNA breaks, but not at blunt ends. www.nature.com/articles/s41...
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Jacob Corn @jcornlab.bsky.social · 12/02/2026
It’s been a fun first few week of my sabbatical. Many exciting meetings w/ @peterfineran.bsky.social lab, learning new stuff and brainstorming ideas. And my own lab has been off to a crazy great start to the year. The early/late zoom meetings have me burning the candle at both ends…
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Jacob Corn @jcornlab.bsky.social · 19/01/2026
Dunedin welcomed me to my sabbatical at @universityofotago.bsky.social with @peterfineran.bsky.social with style.
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Jacob Corn @jcornlab.bsky.social · 04/12/2025
I’m an @univpugetsound.bsky.social alum. Super cool to see UPS STEM highlighted. 10/10 would recommend. Liberal arts education FTW.
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Jacob Corn @jcornlab.bsky.social · 03/12/2025
www.nature.com/articles/d41...
nature.com
AI reviewers are here — we are not ready
Artificial intelligence promises rapid and polite feedback on papers — but we must first review the reviewer.
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Jacob Corn @jcornlab.bsky.social · 02/12/2025
Sometimes I'm excited to read a paper and every paragraph blows me away. And sometimes I'm just as excited and every paragraph leaves me wondering if the referees were sleeping on the job. Today it was one of the latter.
media.tenor.com
a bald man in a plaid shirt and vest
ALT: a bald man in a plaid shirt and vest
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Pedro Beltrao @pedrobeltrao.bsky.social · 28/11/2025
ERC Plus Grants • No career limit, current ERCs are not eligible • Major challenge, transformative research • Up to 7 million euros, up to 7 years • 30 grants per year, 2 years, only once per lifetime • Same application format, plus vision statement • Deadline in September 2026, 2 stage evaluation
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Jacob Corn @jcornlab.bsky.social · 26/11/2025
What controls expansion & contraction of DNA repeats (e.g. Huntington's)? We were thrilled to collaborate w/ the lab of Marta Olejniczak to find out. Check out the cool screen from @sebasiegner.bsky.social and @matthiasmuhar.bsky.social that reads out repeat sequence. www.biorxiv.org/content/10.1...
biorxiv.org
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Jacob Corn @jcornlab.bsky.social · 22/11/2025
I’m very grateful to @ethz.ch @vseth.ethz.ch.web.brid.gy for a Golden Owl award. People who know me know that I respectfully decline science awards. But recognition directly by students hits different!
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Jacob Corn @jcornlab.bsky.social · 17/11/2025
Congratulations to @sebasiegner.bsky.social who defended his PhD on Friday! His name will be on 6-7 papers by the time he leaves the lab, including a co-first Nature paper. What a superstar! Keep an eye out for his postdoc application 😉
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Jacob Corn @jcornlab.bsky.social · 15/11/2025
Reposted in edited form b/c I realized my original post could have been misinterpreted.
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Jacob Corn @jcornlab.bsky.social · 15/11/2025
I recently received an AI-generated referee report. Almost all suggested experiments were already main figures & referee admitted using AI when asked by the editor. But they claimed they only used AI to write. No way. Editors, what do you do in this case? Referees, at least read the paper!
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Jacob Corn @jcornlab.bsky.social · 15/11/2025
For me, it was the referee who used AI. Though AI generated papers and edits are certainly a problem.
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Jacob Corn @jcornlab.bsky.social · 15/11/2025
I just realized my original post could be read the wrong way. Paper was from my lab and out for review in a high profile journal. Four years of work by a dozen people in multiple labs and AI slop seem to have been the judge.
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Pedro Beltrao @pedrobeltrao.bsky.social · 11/11/2025
It has been disappointing to see the general lack of interest and investment into population genetics and genomic medicine in Switzerland. While we can resort to other national cohorts for research the country can only benefit if the know-how can be applied locally www.sfa-phrt.ch/success-stor...
sfa-phrt.ch
Didier Trono Interview “Switzerlands Genetic Diversity is Unique” - PHRT – Personalized Health & Related Technologies
Success Story Didier Trono While other countries are pressing ahead with the Genome of Europe, Switzerland is still hesitating. A huge mistake, says Didier Trono from the Genome Center in Geneva “I do...
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Pedro Beltrao @pedrobeltrao.bsky.social · 11/11/2025
957 proposals were submitted in the latest round of ERC Synergy applications. They expect to fund 50 which means around 5% success rate. This is really not sustainable and a lot of people are likely avoiding doing this knowing how poor the chances are. erc.europa.eu/news-events/...
erc.europa.eu
Applications for ERC Synergy Grants 2026: Facts and figures
The ERC Synergy Grants 2026 call closed for applications on 5 November 2025. These are the preliminary data on the submitted proposals:
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Jacob Corn @jcornlab.bsky.social · 10/11/2025
Congrats to Moritz Schlapansky, who successfully defended his PhD thesis on Friday! You can read his work on "scOUT-seq" profiling of single cell transcriptomes + editing outcomes in millions of cells and living mice at www.biorxiv.org/content/10.1...
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Jacob Corn @jcornlab.bsky.social · 05/11/2025
In 2026 I'm taking a sabbatical in @peterfineran.bsky.social lab @universityofotago.bsky.social. I'm looking forward to learning a lot from Peter's lab and excited to get back to my prokaryotic/viral roots! Also planning to some trips to the rest of the Pacific and Asia. So much to look forward to!
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Jacob Corn @jcornlab.bsky.social · 28/10/2025
This was a great collaboration with the lab of Virginijus Siksnys!
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Jacob Corn @jcornlab.bsky.social · 28/10/2025
Sometimes #Cas9 is too dang big. But mini Cas proteins are bad at both NHEJ & HDR. PhD student Fedor Gorbenko used mammalian cell evolution for *HDR* to make REALLY super #Cas12f1 and #TnpB. As good as or better than Cas9! Base editors included! www.biorxiv.org/cgi/content/short/2025.10.27.684765v1
biorxiv.org
Directed evolution of compact RNA-guided nucleases for homology-directed repair in mammalian cells
RNA-guided nucleases enable DNA editing and offer promise for treating genetic diseases, particularly when used for precise sequence replacement. However, many of the most effective enzymes, such as S...
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ETH Zurich @ethz.ch · 27/10/2025
Thanks to CRISPR/Cas technology, researchers can precisely edit genetic material to treat hereditary diseases. To achieve this, they need to identify undesirable cuts in the genome at an early juncture. Pioneer Fellow Lilly van de Venn is developing such testing methods. ethz.ch/en/news-and-...
ethz.ch
An ETH spin-off aims to bring gene scissors to the clinic
Thanks to CRISPR/Cas technology, researchers can precisely edit genetic material to treat hereditary diseases. To achieve this, they need to identify undesirable cuts in the genome at an early junctur...
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Jacob Corn @jcornlab.bsky.social · 28/10/2025
This was an incredible collaboration with the labs of Randall Platt, Gerald Schwank, Steve Jackson, Helmuth Gehart, and Timm Schroeder. Special thanks also to the NOMIS Foundation who supported some of the very ambitious experiments.
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Jacob Corn @jcornlab.bsky.social · 24/10/2025
Definitely true that epigenetic state can affect repair. We try to control for this by editing in highly expressed housekeeping genes with approx equal epigenetic states in all cells. And HDR is just one change. There are stereotyped differences in categorical and molecular end joining outcomes.
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Jacob Corn @jcornlab.bsky.social · 24/10/2025
Generally true, but I'm pretty sure we're not seeing sampling error. If that were true, then equally populated cell subtypes would have similar differential outcomes. Instead, we can recover cell type solely by clustering on differential outcomes! And "stemmy" cells share outcomes across lineages.
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Jacob Corn @jcornlab.bsky.social · 24/10/2025
There's some crazy stuff in this preprint. For example, did you know that some neuronal subsets actually do HDR with surprising efficiency?
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Jacob Corn @jcornlab.bsky.social · 24/10/2025
Ever noticed that #CRISPR editing results differ between cells? Awesome PhD student Moritz Schlapansky developed "scOUT-seq" to measure single cell transcriptomes + editing. 1.2 million cells, 74 cell types, living 🐭. Cell subtypes differ wildly from bulk average! www.biorxiv.org/content/10.1...
biorxiv.org
Cell-stereotyped DNA repair outcomes are widespread during genome editing
Genome editing outcomes are governed by DNA repair pathways that vary with cell type and state. We developed scOUT-seq (single-cell Outcomes Using Transcript sequencing), a scalable approach that join...
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Jacob Corn @jcornlab.bsky.social · 23/10/2025
Long time no see, everyone! Things have been a bit more busy than ususal, hence the radio silence. But stay tuned for some fun news in the next few days.
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spjacksongroup.bsky.social @spjacksongroup.bsky.social · 18/03/2025
Excited to share our latest preprint. Work led by PhD student @jordancjwilson.bsky.social with @profmarciniak.bsky.social, @villungerlab.bsky.social & our @erc.europa.eu partners @jcornlab.bsky.social & @loizoulab.bsky.social, that sheds light on the action of WEE1 inhibitors. bit.ly/4bDpxZl
biorxiv.org
| bioRxiv
bioRxiv - the preprint server for biology, operated by Cold Spring Harbor Laboratory, a research and educational institution
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Jacob Corn @jcornlab.bsky.social · 13/02/2025
Do you want to know about the invisible secrets of #HDR during #CRISPR genome editing? Check out our preprint at www.biorxiv.org/content/10.1.... New methods, crazy biology, and theft from the genome! From PhD student @charlesyeh.bsky.social
media.tenor.com
a man wearing an orange jacket with the number 22573 on it holds a candy bar
ALT: a man wearing an orange jacket with the number 22573 on it holds a candy bar
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Jacob Corn @jcornlab.bsky.social · 12/02/2025
I’m still learning Bluesky, so now tagging people I mis-tagged. Sorry! @charlesyeh.bsky.social @albertomarin.bsky.social @fedeteloni.bsky.social @gerlichlab.bsky.social
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Jacob Corn @jcornlab.bsky.social · 12/02/2025
If you’re interested in how loop-extruding cohesin drives the homology search during HR, check out also this new preprint from albertomarin.bsky.social in the Taekjip Ha lab (doi.org/10.1101/2025...)
doi.org
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Jacob Corn @jcornlab.bsky.social · 12/02/2025
Curious about how cohesin guides homology search via loops & sister chromatid linkages? Check out this new preprint by fedeteloni.bsky.social & gerlichlab.bsky.social! 👉 tinyurl.com/DSBcohesin
tinyurl.com
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Jacob Corn @jcornlab.bsky.social · 12/02/2025
This project was driven by amazing graduate student charlesyeh.bsky.social, with lots of amazing collaborators over the years.
charlesyeh.bsky.social
Charles Yeh (@charlesyeh.bsky.social)
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