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Ewout Groen

@ewout.bsky.social
689 followers 465 following 16 posts

Biomarkers and mRNA translation | Long-read sequencing | ASOs and gene therapy | SMA & MND research lab at UMC Utrecht | Previously University of Edinburgh | Also cycling, cats, father of 2

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Ewout Groen @ewout.bsky.social · 12/06/2026
Thanks Mark, appreciate it!
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Trends in Genetics @cp-trendsgenetics.bsky.social · 12/06/2026
"The SMN locus in the T2T era: structure, gene conversion, and clinical implications" by Ewout Groen, Gijs van Haaften, & colleagues "[T]hese advances point toward a future in which structurally complex regions are no longer ‘dark’ areas of the genome..." authors.elsevier.com/sd/article/S...
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Ewout Groen @ewout.bsky.social · 12/06/2026
Very excited to share our new review on the complexity of SMA genetics, now online @cp-trendsgenetics.bsky.social! General interest in complex genetics? Want to know more about long-read sequencing? Segmental duplications? ✅✅✅ Have a look! www.cell.com/trends/genet...
cell.com
The SMN locus in the T2T era: Structure, gene conversion, and clinical implications
Long-read sequencing, paralog-aware variant calling, and telomere-to-telomere (T2T) human genome assemblies now enable the resolution of copy-, haplotype-, and nucleotide-level complexities in segment...
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Tom Gillingwater @tomgillingwater.bsky.social · 09/09/2025
🚨 New #SMA paper from the lab just published in @jci-insight.bsky.social: Prenatal SMN-dependent defects in translation uncover reversible primary cilia phenotypes in spinal muscular atrophy insight.jci.org/articles/vie...
insight.jci.org
JCI Insight - Prenatal SMN-dependent defects in translation uncover reversible primary cilia phenotypes in spinal muscular atrophy
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Dan Jagger @auditorynerves.bsky.social · 21/06/2025
Every newborn baby in England will have their DNA mapped to assess their risk of hundreds of diseases. Genomic screening of newborns for rare diseases will involve sequencing their complete DNA using umbilical cord blood samples. 🧪👶🏽🧬🩸 #medsky www.bbc.com/news/article...
bbc.com
NHS plans to DNA test all babies in England to assess disease risk
Scheme is part of the government's 10-year plan for the NHS in England aimed at easing pressure on services.
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Tom Gillingwater @tomgillingwater.bsky.social · 16/06/2025
New paper from the lab 🚨: Expansion microscopy reveals nano-scale insights into the human neuromuscular junction: Cell Reports Methods www.cell.com/cell-reports...
cell.com
Expansion microscopy reveals nano-scale insights into the human neuromuscular junction
Ramadan et al. employ expansion microscopy to visualize neuromuscular junctions in human and mouse muscles. Their findings demonstrate expansion microscopy as an accessible and cost-effective approach...
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SMA Europe @sma-europe.bsky.social · 18/06/2025
📣 5th International Scientific Congress on SMA: registration opens today! 🔬 The event will take place from 11th to 14th March 2026 in Budapest, Hungary. Visit congress.sma-europe.eu to learn more #spinalmuscularatrophy #research #raredisease
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James N. Sleigh @jamessleigh.bsky.social · 21/05/2025
If you're struggling to visualise mouse NMJs, we've got a protocol just for you! bio-protocol.org/en/bpdetail?... Dissection and whole-mount immunofluorescent staining of mouse hind paw muscles for #NMJ analysis Lovely work from Rebecca Simkin @uclqsion.bsky.social @nicolbirsa.bsky.social‬
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Tom Gillingwater @tomgillingwater.bsky.social · 14/04/2025
Our new open access review published in @cp-trendsmolecmed.bsky.social provides an update on the exciting potential of targeting PGK1 as a therapeutic option for neurological diseases, including Parkinson’s disease and motor neuron diseases such as ALS: authors.elsevier.com/sd/article/S...
authors.elsevier.com
ScienceDirect.com | Science, health and medical journals, full text articles and books.
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Ewout Groen @ewout.bsky.social · 21/04/2025
The last part of our SMA genetics trilogy is now online at iScience @cellpress.bsky.social! Here we use ONT technology to determine SMN2-specific methylation profiles. We find how methylation may regulate SMN with aging but it may not be a great biomarker. Have a look: www.cell.com/iscience/ful...
cell.com
Comprehensive analysis across SMN2 excludes DNA methylation as an epigenetic biomarker for spinal muscular atrophy
Spinal muscular atrophy (SMA) is a severe neurodegenerative disease caused by defects in the survival motor neuron 1 (SMN1) gene. Although disease severity partially correlates with SMN2 copy number, ...
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Euan MacDonald Centre for Motor Neuron Disease Research @euanscentre.bsky.social · 16/04/2025
Congrats to Prof Tom Gillingwater's lab at the University of Edinburgh on the publication & awesome front cover in Science Signaling. Read about the insights into how nerve-muscle connections develop 📘 edin.ac/42egXNC @tomgillingwater.bsky.social, @edinunineuro.bsky.social @drchayts.bsky.social
edin.ac
New research publication: insights into how nerve-muscle connections develop
Apr 2025: A team of researchers led by Prof Tom Gillingwater's laboratory at the University of Edinburgh, have uncovered the complex series of molecular changes that occur in motor neurons around the ...
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Edinburgh Neuroscience @edinunineuro.bsky.social · 16/04/2025
@tomgillingwater.bsky.social lab have been collaborating with colleagues from @umcutrecht.bsky.social and CNR Trento to uncover the complex series of molecular changes that occur in motor neurons around the time of birth, when they undergo a process known as synapse elimination...
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Tom Gillingwater @tomgillingwater.bsky.social · 15/04/2025
In getting too excited about the front cover, I forgot to link to the actual paper 🤦‍♂️ Here it is: Dynamic modulation of the motor neuron translatome during developmental synapse elimination | Science Signaling www.science.org/doi/10.1126/...
science.org
Dynamic modulation of the motor neuron translatome during developmental synapse elimination
Superfluous axons are removed from muscle fibers through temporal changes in mRNA translation.
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Tom Gillingwater @tomgillingwater.bsky.social · 15/04/2025
There are still few better feelings as an academic than when your paper’s image is chosen for the front cover of a journal #ProudPI #NMJ Confocal micrograph taken by the amazing @drchayts.bsky.social
Front cover of Science Signaling journal with a micrograph of fluorescently labelled neuromuscular junctions (NMJs)
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Ewout Groen @ewout.bsky.social · 23/03/2025
🔑 Why this matters: copy-specific variation in SMN2 could help explain: Genotype-phenotype discordance Variable treatment response Disease mechanisms TL;DR it's complicated, there's more to be done - and more to come! #SpinalMuscularAtrophy #RareDisease @nanoporetech.com #bioinformatics [3/3]
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Ewout Groen @ewout.bsky.social · 23/03/2025
🧪 Using Nanopore sequencing + polyploid phasing, we analyzed individual SMN1/2 copies and their genomic environment, revealing copy-specific sequence and structural variants. HapSMA is available via github.com/UMCUGenetics... [2/3]
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Ewout Groen @ewout.bsky.social · 23/03/2025
🧬 New in Genome Medicine: rdcu.be/eezPN We developed HapSMA, a method for copy-specific analysis of the SMN locus in SMA using long-read sequencing. 🔍 Key findings: Novel markers of SMN1→SMN2 gene conversion 42% of SMN2 copies show gene conversion Higher complexity in patients vs controls [1/3]
rdcu.be
Long-read sequencing identifies copy-specific markers of SMN gene conversion in spinal muscular atrophy
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Ewout Groen @ewout.bsky.social · 18/03/2025
Thanks for flagging it up!
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Ewout Groen @ewout.bsky.social · 17/03/2025
Excited to share our new paper in which we used both @nanoporetech.com and @pacbio.bsky.social long-read sequencing to solve a complex case of SMA carriers carriership: academic.oup.com/hmg/advance-...
academic.oup.com
A de novo deletion underlying spinal muscular atrophy: implications for carrier testing and genetic counseling
Abstract. Spinal muscular atrophy (SMA) is an autosomal recessive disease most commonly caused by homozygous deletion of the SMN1 gene. Parents of affected
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Liam Faller @liamfaller.bsky.social · 07/03/2025
Incredible stuff (as always) from the Barna lab: A subcellular map of translational machinery composition and regulation at the single-molecule level | Science www.science.org/doi/10.1126/...
science.org
A subcellular map of translational machinery composition and regulation at the single-molecule level
Millions of ribosomes are packed within mammalian cells, yet we lack tools to visualize them in toto and characterize their subcellular composition. In this study, we present ribosome expansion micros...
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Tom Gillingwater @tomgillingwater.bsky.social · 02/01/2025
Delighted to see a lot of hard work by my fantastic colleagues Kiterie and Helena being repaid with the publication of their new paper detailing our thoughts on potential #ALS therapies, in @natrevneurol.bsky.social Free to access version here: rdcu.be/d5odi
eur02.safelinks.protection.outlook.com
Targeting common disease pathomechanisms to treat amyotrophic lateral sclerosis
Nature Reviews Neurology - This Review explores several key dysregulated pathways in ALS (RNA processing, proteostasis, metabolism and inflammation) as well as evolving efforts to develop effective...
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Ruben van Eijk @rpavaneijk.bsky.social · 10/12/2024
New paper to reflect on the main challenges in phase 2 #ALS #MND trials. Key issues relate too short study durations, reliance on the wrong outcome measures, absence of biomarkers, statistical issues, over-interpretation of 'clinical trends' and miscommunication. academic.oup.com/brain/articl...
academic.oup.com
Rethinking phase 2 trials in amyotrophic lateral sclerosis
There is a long history of ALS therapies being promoted on the basis of Phase 2 data, which then fail to translate into meaningful benefits in Phase 3 tria
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medRxivpreprint @medrxivpreprint.bsky.social · 23/11/2024
Comprehensive analysis across SMN2 excludes DNA methylation as an epigenetic biomarker for spinal muscular atrophy www.medrxiv.org/content/10.1101/202…
medrxiv.org
Comprehensive analysis across SMN2 excludes DNA methylation as an epigenetic biomarker for spinal muscular atrophy https://www.medrxiv.org/content/10.1101/2024.11.21.24317551v1
Spinal muscular atrophy (SMA) is a severe neurodegenerative disease caused by defects in the surviva
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Ewout Groen @ewout.bsky.social · 20/11/2024
🧬🧠Turns out @medrxivpreprint.bsky.social automatically shared our preprint on SMA genetics before everyone joined here - which should be a good excuse to post this again! We're working hard on revising it for definitive peer-reviewed publication, hoping to share it (+a short thread) soon(ish)
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Cathy Abbott @cathyabbott.bsky.social · 20/11/2024
The SIDB PhD programme with projects on neurodevelopmental disorders (including one from our lab) is now open for applications. Good stipend, excellent environment and a beautiful city sidb.org.uk/phds/
Edinburgh skyline showing castle and Arthur's seat with blue sky
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Mark A. Hanson @hansonmark.bsky.social · 19/11/2024
The strain on scientific publishing: we set out to characterise the remarkable growth of the scientific literature in the last few years, in spite of declining growth in total scientists. What is going on? direct.mit.edu/qss/article/... A 🧵 1/n #AcademicSky #PhDchat #ScientificPublishing #SciPub
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Ewout Groen @ewout.bsky.social · 18/11/2024
Not a bad view today from the home office
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Ewout Groen @ewout.bsky.social · 17/11/2024
Fred approves. Or not. One never really with cats
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Andre Rendeiro @andre-rendeiro.com · 16/11/2024
What if we could look at a human tissue image🔬and quantify its biological age?🧬 And how could we get the same insights without collecting the tissue sample? In our new @biorxivpreprint, we create "tissue clocks" ⏳to do just that! www.biorxiv.org/content/10.1... 📝 #aging #tissue thread below⬇️
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Ulrike Boehm @ulrikeboehm.bsky.social · 16/11/2024
🔬 Are you eager to dive into the world of light microscopy & learn from top-notch microscopists about its essential techniques for life science applications? If that sounds exciting, don’t miss out on this free, in-depth iBiology series! 👉 www.ibiology.org/online-biolo...
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Agathe Chaigne @agathechaigne.bsky.social · 14/11/2024
Science in the Netherlands. The new government is planning very strong cuts in the research and higher education budget. There was a national protest planned for today in Utrecht, which got cancelled yesterday by the organisers after advice from the mayor/police because of security threats. 1/3
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Ewout Groen @ewout.bsky.social · 14/11/2024
Can you add me too? Thanks!
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Ewout Groen @ewout.bsky.social · 13/11/2024
Our findings highlight that despite understanding genetic causes and having treatments available, optimal treatment of genetic diseases remains challenging. Exciting to see all the insights the modest fibroblast could give us 🔬🧫
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Ewout Groen @ewout.bsky.social · 13/11/2024
We found that in 57% of cases, cells showed a significantly better response to either nusinersen or risdiplam, despite similar mechanisms. This suggests treatment effectiveness varies between patients more than previously thought. 2/3
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Ewout Groen @ewout.bsky.social · 13/11/2024
👨‍🔬🧠 Excited to share the lab latest paper on SMA out today! www.cell.com/molecular-th... In it, we used 45 patient-derived cell lines to understand why spinal muscular atrophy (SMA) patients respond differently to available treatments. 1/3
cell.com
Patient-specific responses to SMN2 splice-modifying treatments in spinal muscular atrophy fibroblasts
Groen and colleagues investigate personalized treatment strategies for spinal muscular atrophy (SMA) using patient-derived fibroblasts. They reveal that response to splicing-modifying therapies varies...
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Pradeep Natarajan @pnatarajanmd.bsky.social · 12/11/2024
Framework for maintaining scientific rigor in N-of-1 trials www.nature.com/articles/s41...
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Mubashar “Mubs” Iqbal @mubashariqbal.com · 11/11/2024
Starter packs are genius, but I was surprised there wasn't a list of them for people to find. So I built it: blueskydirectory.com/starter-pack... The website monitors the packs being shared and adds the ones it finds to the database. Missed your stater pack? Message me and I'll get it added.
blueskydirectory.com
All - Bluesky Directory
A curated collection of all things relating to the Blue Sky social media platform.
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Ewout Groen @ewout.bsky.social · 12/11/2024
🙋‍♂️🙂
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