Benjamin Ostendorf

@ostendorflab.org

Physician scientist @ChariteBerlin. Interested in tumor immunology, systems biology, and cancer biology. Lab website: www.ostendorflab.org

I have been thinking since yesterday about why I find the 1% thing so, so disturbing. It's a visceral reaction of 'just no', which goes beyond the general yuck towards the enshittification of/via AI. I have finally put my finger on it: it is the feeling you get when

Among patients with previously treated metastatic pancreatic ductal adenocarcinoma, the RAS(ON) inhibitor daraxonrasib led to significantly longer overall survival and progression-free survival than chemotherapy. Full phase 3 RASolute 302 trial results: https://nej.md/4nWaxvM #ASCO26

Graph from a study published in the New England Journal of Medicine on daraxonrasib versus chemotherapy for metastatic pancreatic cancer. The x-axis represents months, and the y-axis shows the percentage of patients alive. Two lines indicate survival rates: daraxonrasib (blue) and chemotherapy (gray). The bottom section lists patients at risk over time. Title and journal logo are included.

Regarding ELNs, after all these years I still wish Findingsapp by @cparnot.bsky.social got resurrected. Benchling is fine, but Findings was such a joy to work with. Maybe in the age of LLMs it would be feasible to do that, add an optional web interface and collaboration features

Findings has been discontinued and will no longer be developed 😥

Dear Findings user, We have some sad news to share with you today. More than 10 years ago we set out to make the lab notebook app we would have loved to have when we were still in the lab. The result ...

community.findingsapp.com

The number of cancer deaths worldwide has more than doubled since the 1980s. Does that mean we're losing the fight against cancer? Not necessarily, because it depends on how you measure it. On this chart, you can see three ways to look at the same data. 🧵

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Delighted to share our new paper on LXR agonism pre-conditioning T cells to more readily adopt effector states, out in @jem.org today. This was a long project started in @sohailtavazoie.bsky.social's lab and completed across the atlantic here in Berlin at Charité.

Liver-X-receptor agonism enhances T cell priming and activation to promote anti-tumor immunity

Ostendorf et al. show that activation of liver-X-receptors preconditions T cells to render them more receptive to adopting effector states upon activation.

doi.org

📣 We’re hiring! Pls share! Join my lab to study human antigen-specific B cells across vaccination & infection backgrounds & explore their plasticity. Passionate about B cells, cutting-edge immunology, molecular biology & bioinformatics? 📄Details & apply: karriere.charite.de/stellenangeb... ⏳ Feb 28

Wissenschaftliche Mitarbeiterin/ Wissenschaftlicher Mitarbeiter (d/w/m) /DoktorandIn

Teilzeit | 28.02.2026 | Campus Virchow-Klinikum, Wedding

karriere.charite.de

Friday Papers Club! 🍿In light of Pubmed going down, the collapse of social media, and my recent success at getting recommendations for interesting papers from those still around, I am starting a new tradition! - Recommend a good scientific manuscript! 👇

Doomscrolling pause to chat CRISPR libraries! Preprint describes our new, data-driven approach to combine on-target and off-target predictions much more intelligently for *selecting* guides, which we use to develop our newest Cas9 knockout library, Jacquere. Thread: www.biorxiv.org/content/10.1...

Balancing off-target and on-target considerations for optimized Cas9 CRISPR knockout library design

The continued development of high-dimensional CRISPR screen readouts, such as single-cell RNA sequencing and high-content imaging, necessitates compact libraries to enable functional interrogation at ...

biorxiv.org

🧨Exciting new pre-print 🧨 Introducing ppmSeq - cost effective, scalable dual-strand 🧬🧬 sequencing. Scalability & ultra-low error in one! A game changer for somatic genome discovery science and cfDNA clinical apps. Check out thread for deets!

Alex@alexpellancheng.bsky.social · 12mo ago

Highly accurate sequencing OR high throughput? We refuse to choose. Introducing ppmSeq, a method built to deliver both. Our latest from the @landau.bsky.social lab with Ultima Genomics 👀👀👀 See ⬇️ for a primer on the next frontier of genomics www.biorxiv.org/content/10.1...

We're very happy to invite you to the 𝟑𝐫𝐝 𝐘𝐨𝐮𝐧𝐠 𝐒𝐜𝐢𝐞𝐧𝐭𝐢𝐬𝐭 𝐂𝐚𝐧𝐜𝐞𝐫 𝐂𝐨𝐧𝐠𝐫𝐞𝐬𝐬 𝐚𝐭 𝐭𝐡𝐞 𝐅𝐫𝐞𝐧𝐜𝐡 𝐄𝐦𝐛𝐚𝐬𝐬𝐲 𝐢𝐧 𝐁𝐞𝐫𝐥𝐢𝐧 𝐨𝐧 𝐎𝐜𝐭𝐨𝐛𝐞𝐫 𝟗 &𝟏𝟎. Visit our website ys2c.org for further information.

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Presented at #ASCO25: The addition of encorafenib and cetuximab to mFOLFOX6 chemotherapy improved outcomes in the primary treatment of metastatic BRAF V600E–mutated colorectal cancer. Full BREAKWATER phase 3 trial results:

nej.md

Hello, Bluesky! ☀️ We fund frontier research in Europe—bold ideas, unexpected discoveries and science that shapes the future. So it’s only fitting we’ve landed here. Sorry for being late. Follow us for updates on ERC funding, research policy, and our grantees' discoveries.

End-of-the-year preprint & first 🧵 where the sky is blue! Ever wondered how a cancer driven by a single mutant oncogene becomes molecularly & cellularly heterogeneous? Why metastases share drivers w/primary tumors but are more aggressive?