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Posts by Benjamin Ostendorf

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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. ๐Ÿงต

1 month ago 117 41 3 13
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A new tool from Rockefeller's @danmucida.bsky.social and @czbiohub.bsky.social allows scientists to closely follow newly activated T cells as they travel and change during an infectionโ€”it may inform future therapies for infection, cancer, and autoimmunity.

๐Ÿ”—: https://bit.ly/3NjZEWD

1 month ago 6 4 1 1

Thank you, Ariรซn!

2 months ago 1 0 0 0
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@ostendorflab.org, @immushuang.bsky.social, @sohailtavazoie.bsky.social et al. show that activation of LXRs elicits a T cell "pre-effector" state that enhances priming and promotes anti-tumor immunity. rupress.org/jem/article/...

#TumorImmunology

2 months ago 4 2 0 0

thank you christian!

2 months ago 1 0 0 0

Huge thank you to all who contributed to this, particularly @sohailtavazoie.bsky.social , @immushuang.bsky.social, Bsky-less Jonathan Goldstein and all other co-authors. Also thank you to our funders, including @bihatcharite.bsky.social, Deutsche Krebshilfe, @dfg.de, DGIM and others.

2 months ago 2 0 0 0

Interestingly, we found that LXR activation induces a state in T cells that renders them more receptive to adopting effector states upon activation; this pre-conditioned state is quite fascinating and may be relevant beyond cancer.

2 months ago 0 0 1 0

Given their highly variable abundance, we now asked whether LXR agonism also works in tumors with low levels of g-MDSCs. This was indeed the case - and the effect was immune-mediated despite only very scarce g-MDSCs.

2 months ago 0 0 1 0
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LXR/ApoE Activation Restricts Innate Immune Suppression in Cancer Therapeutic harnessing of adaptive immunity via checkpoint inhibition has transformed the treatment of many cancers. Despite unprecedented long-term rโ€ฆ

In Sohail's lab, we had previously found that LXR agonism enhances anti-tumor immunity by depleting granulocytic MDSCs.

2 months ago 0 0 1 0
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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.

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 Charitรฉ.

2 months ago 10 4 4 0
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Wissenschaftliche Mitarbeiterin/ Wissenschaftlicher Mitarbeiter (d/w/m) /DoktorandIn Teilzeit | 28.02.2026 | Campus Virchow-Klinikum, Wedding

๐Ÿ“ฃ Weโ€™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?
๐Ÿ“„Details & apply: karriere.charite.de/stellenangeb...
โณ Feb 28

2 months ago 5 1 0 0
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How AI assistance impacts the formation of coding skills Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems.

โ€œWe found that using AI assistance led to a statistically significant decrease in mastery.โ€

Props to Anthropic for studying the effects of their creation and reporting results that are not probably what they wished for
www.anthropic.com/research/AI-...

2 months ago 509 183 14 37

A fascinating finding on the therapeutic potential of targeting non-coding regions of MYC!

2 months ago 5 1 0 0
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Medical breakthroughs in 2025 ... and a happy new year.

New post!

There was a lot of innovation in medicine and biomedical research this year, and I've tried to summarize the biggest ones in this blogpost.

Medical breakthroughs in 2025. Plus a serious note at the end.
www.scientificdiscovery.dev/p/medical-br...

3 months ago 262 113 14 25

Completely agree! Now I mainly wish for Prism and Flowjo replacements...

4 months ago 2 0 0 0

Friday Papers Club! ๐ŸฟIn 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! ๐Ÿ‘‡

6 months ago 77 22 15 3
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For our #flowcytometry peeps, would you like to have a single fix/perm protocol that is optimised for everything? One that preserves fluorophores while allowing simultaneous TF and cytokine staining? How about 100-fold cheaper?

You got it:
currentprotocols.onlinelibrary.wiley.com/doi/10.1002/...

6 months ago 159 70 10 11
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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 ...

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...

7 months ago 74 24 2 0
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Neoadjuvant FOLFIRINOX versus neoadjuvant gemcitabine-based chemoradiotherapy in resectable and borderline resectable pancreatic cancer (PREOPANC-2): a multicentre, open-label, phase 3 randomised tria... This randomised trial did not show a difference in overall survival between neoadjuvant FOLFIRINOX and neoadjuvant gemcitabine-based chemoradiotherapy in patients with resectable or borderline resecta...

Very interesting! The link leads to the ESPAC5 trial though, correct link here www.thelancet.com/journals/lan...

7 months ago 1 0 0 0

What a great thread on budgeting for an academic lab!!

7 months ago 4 1 0 0

๐ŸงจExciting new pre-print ๐Ÿงจ Introducing ppmSeq - cost effective, scalable dual-strand ๐Ÿงฌ๐Ÿงฌ sequencing. Scalability & ultra-low error in one! A game changer for somatic genome discovery science and cfDNA clinical apps. Check out thread for deets!

7 months ago 22 5 0 0
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Call for 20 Assistant Professor positions Karolinska Institutet is a world-leading medical university with a long and proud history of ground-breaking research. We are now recruiting outstanding early-career researchers with particularly exce...

Karolinska is looking for 20 (!!) assistant professors and offering 6 year appointments with ~1M USD startup packages.

ki.se/en/about-ki/...

9 months ago 278 278 1 14
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It's my first #newPI roll call on BlueSky! Calling all new #cancer PIs who just started or who are about to start their labs! Please say hi and what you work on so I can follow you if I don't already! ๐Ÿ˜ƒ

8 months ago 27 11 0 2
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Reporter-based screening identifies RAS-RAF mutations as drivers of resistance to active-state RAS inhibitors in colorectal cancer A cell-sorting approach reveals distinct modes of cancer resistance to active-state RAS inhibitors.

Different modes of resistance to RAS inhibitors unveiled by dual Erk reporters that monitor erk activity in the nucleus and the cytoplasm. Cool new paper led by Markus Morkel and Oleksandra Aust www.science.org/doi/10.1126/...

8 months ago 7 2 1 0
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We're very happy to invite you to the ๐Ÿ‘๐ซ๐ ๐˜๐จ๐ฎ๐ง๐  ๐’๐œ๐ข๐ž๐ง๐ญ๐ข๐ฌ๐ญ ๐‚๐š๐ง๐œ๐ž๐ซ ๐‚๐จ๐ง๐ ๐ซ๐ž๐ฌ๐ฌ ๐š๐ญ ๐ญ๐ก๐ž ๐…๐ซ๐ž๐ง๐œ๐ก ๐„๐ฆ๐›๐š๐ฌ๐ฌ๐ฒ ๐ข๐ง ๐๐ž๐ซ๐ฅ๐ข๐ง ๐จ๐ง ๐Ž๐œ๐ญ๐จ๐›๐ž๐ซ ๐Ÿ— &๐Ÿ๐ŸŽ.

Visit our website ys2c.org for further information.

10 months ago 16 9 1 0
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junior professorship position (f/m/d) in Single-Cell Systems Biology - Wรผrzburg (Stadt), Bayern (DE) job with Julius-Maximilians-University Wรผrzburg - Faculty of Medicine | 673667 The Julius-Maximilians-University Wรผrzburg, Faculty of Medicine is offering one junior professorship position (f/m/d) in Single-Cell Systems Biology.

We have an attractive opening for a tenure-track professorship in Single-Cell Systems Biology. Excellent package and infrastructure at @uni-wuerzburg.de Institute of Systems Immunology. Great place to live and work in the heart of the franconian wine region!

jobs.sciencecareers.org/job/673667/j...

10 months ago 10 15 0 1

Presented at #ASCO25:

The addition of encorafenib and cetuximab to mFOLFOX6 chemotherapy improved outcomes in the primary treatment of metastatic BRAF V600Eโ€“mutated colorectal cancer.

Full BREAKWATER phase 3 trial results:

10 months ago 23 9 1 0

Thanks so much, Veena ๐Ÿ™๐Ÿ™‚!

10 months ago 0 0 0 0
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CRISPR screens in the context of immune selection identify CHD1 and MAP3K7 as mediators of cancer immunotherapy resistance Cancer immunotherapy is only effective in a subset of patients, highlighting the need for effective biomarkers and combination therapies. Here we systematically identify genetic determinants of cancer...

Excited to announce our preprint today @biorxivpreprint.bsky.social
Using functional genomics, we map the genetic determinants cancer cell sensitivity to tumour-reactive T cells:
www.biorxiv.org/content/10.1...

11 months ago 6 5 1 1

Thank you Yuko! ๐Ÿ™‚

10 months ago 0 0 0 0