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Roel Verhaak

@roelverhaak

Yale Dpt of Neurosurgery, cancer research, brain tumors, ecDNA, likes football, drums and karaoke.

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24.09.2023
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Latest posts by Roel Verhaak @roelverhaak

Same. Squirrels here have learned to shake the birdfeeder so the contents spill, meaning to only have to leap jump once every time we fill it up. They are smart creatures.

16.02.2026 02:37 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Plot of modeling new NIH grants after a switch to 100% MYF. There is a large drop in grants in the first year with a gradual recovery over 5 years.

Plot of modeling new NIH grants after a switch to 100% MYF. There is a large drop in grants in the first year with a gradual recovery over 5 years.

There is a lot of talk lately about multi-year funding (MYF) at NIH. This is mostly a paperwork issue, but it can have a dramatic impact on the number of grants that get funded. I was curious how this would impact grant numbers over time, so I did some simple modeling. 1/n

22.01.2026 19:19 πŸ‘ 20 πŸ” 14 πŸ’¬ 2 πŸ“Œ 2

Raise your hand if you think that the new biosketch formatting will improve the ways NIH distributes extramural funding or funding transparency.

22.01.2026 18:01 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Having too much with the new wired birdfeeder and its AI powered bird recognition feature. Its a dark-eyed junco!

20.01.2026 02:55 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I can't believe this still needs to be said (and more loudly):

Trans rights are human rights.

18.12.2025 00:54 πŸ‘ 187 πŸ” 46 πŸ’¬ 4 πŸ“Œ 1

And here is your accompanying editorial: Leveraging Single-Cell Profiling in Early-Phase Trials to Guide Rational Therapy Development url: academic.oup.com/neuro-oncolo...

06.12.2025 19:17 πŸ‘ 5 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Happy to share a new #NORLUX study on how humanized patient-derived xenografts of #glioblastoma can be useful in investigating immunosuppression and clinically-relevant immunotherapy testing. See for more: www.biorxiv.org/content/10.1...
#immunotherapy, #preclinicalmodeling,

23.11.2025 17:03 πŸ‘ 14 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0

It was a great pleasure to learn about a recent discovery in ecDNA biology that answers the most critical question on ecDNA maintenance! @nature.com Are you a non-scientist? No worries! My team wrote a lay-audience-friendly summary about this exciting research finding! Check it out! rdcu.be/eQMvM

20.11.2025 17:57 πŸ‘ 9 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0

Very excited to have this collaborative work on evaluating PK/PD and single-cell responses for Ribociclib+Everolimus in #rGBM published. It was such a great experience working with @kevin-johnson.bsky.social and @roelverhaak.bsky.social. @ivycenter.bsky.social @anchitien.bsky.social

08.11.2025 18:04 πŸ‘ 6 πŸ” 1 πŸ’¬ 0 πŸ“Œ 1
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Single nucleus transcriptomics, pharmacokinetics, and pharmacodynamics of CDK4/6 and mTOR inhibition in a phase 0/1 trial of recurrent high-grade glioma AbstractBackground. Outcomes for adult patients with high-grade glioma (HGG) remain poor, necessitating new treatment strategies. Key challenges include po

Delighted to share this new collaborative paper with the Ivy BTC where we performed deep characterization of glioma patients enrolled on a CDK4/6i Phase 0 trial academic.oup.com/neuro-oncolo... with @kevin-johnson.bsky.social @shwetalm.bsky.social @nadersanai.bsky.social

08.11.2025 17:55 πŸ‘ 8 πŸ” 1 πŸ’¬ 0 πŸ“Œ 1
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Sharks absolutely get cancer, and people claiming otherwise are pseudoscientific grifters preying on the desperate.

Even if sharks did not get cancer, eating shark would not cure your cancer any more than eating LeBron James would make you better at basketball.

30.10.2025 09:27 πŸ‘ 1223 πŸ” 299 πŸ’¬ 62 πŸ“Œ 32
RESEARCH TECHNICIAN III RESEARCH TECHNICIAN III

Senior Research Tech (Duke) – tumor immunobiology lab. Work with tumor/blood/CSF samples, culture patient-derived cell lines, assist single-cell assays, and support & lead research. Bio degree + research exp required. No visa sponsorship. Title may vary.
Apply β†’ careers.duke.edu/job-invite/2...

29.10.2025 21:41 πŸ‘ 1 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Broad-Bayer collaboration leads to drug candidate for a hard-to-treat type of lung cancer The compound, now under priority review at FDA, targets HER2 mutations in lung cancer and shrinks tumors in mice and humans.

A new drug candidate for a difficult-to-treat type of lung cancer, developed by scientists in the Broad-Bayer oncology research alliance, targets HER2 mutations in lung cancer and shrinks tumors in mice and humans.

16.10.2025 20:43 πŸ‘ 7 πŸ” 2 πŸ’¬ 0 πŸ“Œ 1
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The immunology of brain tumors The cellular and molecular determinants of the antigenicity of brain tumors and the immunosuppressive brain tumor microenvironment are reviewed.

The immunology of brain tumors | Science Immunology www.science.org/doi/10.1126/...

Happy to share this review article by @lukasbunse.bsky.social, Theresa Bunse and I @platten-lab.bsky.social, Michael Kilian, Fran Quintana @quintanalabhms.bsky.social.

04.10.2025 10:49 πŸ‘ 24 πŸ” 11 πŸ’¬ 0 πŸ“Œ 0
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Today’s lab meeting is a debate of recent Nature/Science retraction decisions: fair or not? Important lesson that not all retractions are the same, authors not always to blame.

16.09.2025 17:18 πŸ‘ 6 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Phenomenal work, Dan! Read it with pleasure.

08.09.2025 08:05 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Almost half way to our fundraising target - and only two weeks to go!

I'll be riding the 100 mile #CloserToFreeRide to raise money to support cancer research and patient care. Please consider donating - every penny counts!

➑️ www.rideclosertofree.org/participants...

#CTFRide @ctfride.bsky.social

22.08.2025 16:52 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Devastating news. The Pediatric Brain Tumor Consortium has lost its ability to apply for federal funding upon which it is structured. Without this, it cant exist. This threatens access to clinical trials for children.
These children need MORE funding and MORE trials, not less.
They deserve better

19.08.2025 22:41 πŸ‘ 18 πŸ” 15 πŸ’¬ 2 πŸ“Œ 3
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Glioblastoma in Adults: A Society for Neuro-Oncology (SNO) and European Society of Neuro-Oncology (EANO) Consensus Review on Current Management and Future Directions Abstract. Glioblastoma is the most common type of malignant primary brain tumor and a major cause of morbidity and mortality. In 2021 the World Health Orga

πŸ”₯ Hot of the press in Neuro-Oncology! 🧠 #Glioblastoma in Adults: A Society for Neuro-Oncology (SNO) and European Society of Neuro-Oncology (EANO) Consensus Review on Current Management and Future Directions.
academic.oup.com/neuro-oncolo...

@eanoassociation.bsky.social @neuroonc.bsky.social

19.08.2025 07:33 πŸ‘ 3 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
Selective depletion of cancer cells with extrachromosomal DNA via lentiviral infection Abstract. Extrachromosomal DNA (ecDNA), a major focal oncogene amplification mode found across cancer, has recently regained attention as an emerging cancer hallmark, with a pervasive presence across ...

Findings from @roelverhaak.bsky.social et al. reveal lentiviral transduction + antibiotic selection dramatically ⬇️ ecDNA+ #cancer cells, revealing both a challenge for research and a potential therapeutic clue. #ecdna
aacrjournals.org/cancerrescom...
@aacrjournals.bsky.social

12.08.2025 17:02 πŸ‘ 2 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

Happy to provide a comment on recent work by the Maciejowski lab on ecDNA inheritance www.cell.com/molecular-ce... and authors.elsevier.com/a/1lZPK3vVUP... - with Xue Jin

11.08.2025 23:26 πŸ‘ 6 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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A diverse landscape of FGFR alterations and co-mutations suggests potential therapeutic strategies in pediatric low-grade gliomas Nature Communications - A subset of pediatric gliomas harbour alterations in fibroblast growth factor receptor (FGFR)-family proteins. Here, the authors characterise the genomic landscape of 11,635...

Excited to share our paper reporting significance of FGFR-alterations across pediatric gliomas. Congratulations April Apfelbaum and Eric Morin and to everyone across our labs and collaborators. Thank you to the foundations and patients/ families who made this happen. www.bandolab.org
rdcu.be/eyHcG

31.07.2025 13:34 πŸ‘ 4 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0

I took it for a small tortoiseshell (or its California version tortoiseshell) :) in that case, lady it is.

25.07.2025 15:32 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Could be male

25.07.2025 14:58 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

You might want to check the grant status in Commons.

24.07.2025 20:36 πŸ‘ 1 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

As individual PI, that may just set you up for further targeting.

24.07.2025 18:01 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Apparently payline was adjusted to 4th percentile for the May council. Unrelated to the budget of the grant.

23.07.2025 20:02 πŸ‘ 4 πŸ” 1 πŸ’¬ 2 πŸ“Œ 0

PO just confirmed that our 5th percentile R01 is not getting funded. Past NCI Payline at 4 percent. Cant believe it.

23.07.2025 19:35 πŸ‘ 183 πŸ” 91 πŸ’¬ 20 πŸ“Œ 17
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Ongoing genome doubling shapes evolvability and immunity in ovarian cancer - Nature A single-cell sequencing study using more than 30,000 tumour genomes from human ovarian cancers shows that whole-genome doubling is an ongoing mutational process that drives tumour evolution and disru...

Goldschmidt's hopeful monsters in cancer: single cell DNAseq shows whole genome doubling (WGD) is an ongoing and frequent mutational process in ovarian cancer. www.nature.com/articles/s41... beautiful work from @sohrabshah.bsky.social and team

17.07.2025 08:24 πŸ‘ 31 πŸ” 12 πŸ’¬ 0 πŸ“Œ 0
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Tumor-initiating genetics and therapy drive divergent molecular evolution in IDH-mutant gliomas Astrocytomas and oligodendrogliomas are slow-growing and treatment-sensitive IDH-mutant gliomas diagnosed at ages 30-50. Local tumor regrowth and treatment resistance is inevitable resulting in 3-10 y...

New preprint on longitudinal treatment response signatures in IDH-mutant glioma from the GLASS Consortium www.biorxiv.org/content/10.1...

16.07.2025 18:36 πŸ‘ 20 πŸ” 4 πŸ’¬ 2 πŸ“Œ 0