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Marcel Werner

@marcelwerner.bsky.social
312 followers 419 following 29 posts

Postdoc at @grothlab.bsky.social and Danish Cancer Institute. PhD at @hamperllab.bsky.social. Interested in DNA replication, epigenetics, and chromatin.

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Reposted by Marcel Werner
Akis (Argyris) Papantonis @akispapantonis.bsky.social · 25/08/2026
Newest from the lab - and the only of our manuscripts since the introduction of bioRxiv that we did not preprint (it will become obvious why). "Targeting addiction to HMGB2-driven transcriptional programs in pancreatic cancer" A thread...
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The Groth lab @grothlab.bsky.social · 21/08/2026
‼️🚨Out now in Molecular Cell - Our latest study 𝐫𝐞𝐯𝐞𝐚𝐥𝐢𝐧𝐠 𝐧𝐞𝐰 𝐢𝐧𝐬𝐢𝐠𝐡𝐭𝐬 𝐢𝐧𝐭𝐨 𝐅𝐀𝐂𝐓 𝐟𝐮𝐧𝐜𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐭𝐡𝐞 𝐢𝐦𝐩𝐨𝐫𝐭𝐚𝐧𝐜𝐞 𝐨𝐟 𝐧𝐮𝐜𝐥𝐞𝐨𝐬𝐨𝐦𝐞 𝐨𝐫𝐠𝐚𝐧𝐢𝐬𝐚𝐭𝐢𝐨𝐧 𝐟𝐨𝐫 𝟑𝐝 𝐠𝐞𝐧𝐨𝐦𝐞 𝐦𝐚𝐢𝐧𝐭𝐞𝐧𝐚𝐧𝐜𝐞: tinyurl.com/2xctvx38. It was a pleasure to lead this collaborative effort alongside @nilskrietenstein.bsky.social More in🧵below 🪡
tinyurl.com
Maintenance of nucleosome organization through replication and transcription counteracts aberrant coalescence of active chromatin
Nucleosomes with their associated modifications organize and regulate the genome. It is unclear how this is integrated with the requirement of replica…
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Molecular Cell @cp-molcell.bsky.social · 18/08/2026
Online Now: Maintenance of nucleosome organization through replication and transcription counteracts aberrant coalescence of active chromatin Online now:
dlvr.it
Maintenance of nucleosome organization through replication and transcription counteracts aberrant coalescence of active chromatin
Frater et al. show an essential role of mammalian FACT in coordinating replisome and RNA polymerase progression through chromatin with histone recycling to maintain histone modifications. They further demonstrate that losing nucleosome organization can dynamically regulate chromatin compartmentalization.
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Stirling Churchman @stirlingchurchman.bsky.social · 28/07/2026
RNA-seq tells us how much RNA is present in the cell. But to understand gene regulation, we need to easily measure the synthesis and decay rates driving this abundance. We introduce AIR-seq: analog intrinsic recoding sequencing. (1/6) www.biorxiv.org/content/10.6...
biorxiv.org
Analog intrinsic recoding measures RNA dynamics without chemical conversion
Steady-state RNA abundance measurements mask the synthesis and decay rates that shape gene expression. Analog intrinsic recoding sequencing (AIR-seq) repurposes the base-pairing properties of N4-hydro...
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Marcel Werner @marcelwerner.bsky.social · 30/06/2026
I am delighted to share that I have been awarded a Walter Benjamin Postdoctoral Fellowship from the @dfg.de to support my work in @grothlab.bsky.social at the Danish Cancer Institute. #DFG #cancerresearch #epigenetics
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Sophie Polo Lab @polosophie.bsky.social · 11/06/2026
Here is our article published in Nature Comm, on new players in chromatin dynamics after UV repair. This work highlights the histone chaperones DNAJC9 and MCM2 as central players in chromatin repair. Our proteomic dataset opens up new perspectives for dissecting epigenome maintenance mechanisms.
nature.com
Proteomic profiling of UV damage repair patches uncovers histone chaperones with central functions in chromatin repair - Nature Communications
Chromatin states need to be maintained during DNA damage repair. Here, the authors expand the histone chaperone network involved in repair-coupled chromatin restoration and highlight a mechanistic coo...
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Peter Ly @peterlylab.bsky.social · 19/05/2026
Excited to share our latest paper! We found that large pieces of the human genome can transfer between cells upon direct contact, endowing recipient cells with heritable phenotypic changes. @cp-cell.bsky.social (1/7) www.cell.com/cell/fulltex...
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Sidrit Uruci (Sid) @sidrituruci.bsky.social · 17/05/2026
Small contribution to the eternal match happening inside every cell: in the red corner, replication. In the blue corner, transcription. Both convinced they own the genome. Another amazing collaboration with @hamperllab.bsky.social and @luijsterburglab.bsky.social lnkd.in/ey9tH7YF
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Joshua Saldivar @saldivar-lab.bsky.social · 11/05/2026
Excited to share a new preprint from the lab by @melissamcevoy.bsky.social The S/G2 checkpoint prevents the premature shutdown of the DNA replication program. Without it, cells fail to finish replicating their chromosomes and have severe mitotic errors. www.biorxiv.org/content/10.6...
biorxiv.org
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Francesca Mattiroli @fmattiroli.bsky.social · 30/04/2026
We are looking for a PhD student to study chromatin changes related to heart regeneration, in collaboration with @bakkerslab.bsky.social . Please share and apply! www.hubrecht.eu/nl/vacature/...
hubrecht.eu
PhD student - 38 hours p/w - Hubrecht Institute
We are looking for PhD student in the group of Dr. Francesca Mattiroli at the Hubrecht Institute. The successful candidate will work in a collaborative project between the Mattiroli lab and the lab of...
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Reposted by Marcel Werner
Genome Function Lab @genomefun.bsky.social · 24/04/2026
Our new paper is finally out! 📢 Great team effort from Sara M, @joanasgrmrtnz.bsky.social and @agalleg.bsky.social with the support from everyone in the lab. Many thanks to our collaborators, @andreichabes.bsky.social , @mmaslon.bsky.social and @lschermelleh.bsky.social
science.org
Slow RNAPII elongation enhances naive pluripotency rewiring while maintaining high replication fork speed
Slowing RNAPII velocity boosts naive pluripotency, uncovering an unexpected link to cell plasticity.
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Reposted by Marcel Werner
ME Torres-Padilla @metorrespadilla.bsky.social · 09/02/2026
We go live!!! Join us Munich July5-7th to hear exciting research on #Replication by leaders in the field AND !! registration is FREE 🥳 (but mandatory) - we hope to see many in Munich 🍺 @helmholtzmunich.bsky.social @replifate.bsky.social @epicrossborders.bsky.social replifate.eu/event/meetin...
replifate.eu
Events for February 2026
06-07 July 2026 | Munich, GermanyDNA Replication and Its Impact on Genome and Chromatin MaintenanceWe are RepliFate, a European Training Doctoral Network dedicated to understanding how DNA replication...
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Marcel Werner @marcelwerner.bsky.social · 04/02/2026
Glad to have been part of this great story and a fun collaboration between @saldivar-lab.bsky.social and @hamperllab.bsky.social! We discover an exciting new function of ATR in dissolving transcriptional condensates at the HLB to fine-tune linker histone expression and prevent genome instability.
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Kumar Somyajit & Lab @ksomyajit.bsky.social · 29/01/2026
Dear Colleagues, Delighted to share that our first lab paper is now published in Nature.!!! 😊😊😊 We identify a previously concealed “safety limit” in DNA replication program: cells intrinsically rate-limit PCNA via PAF15, shaping strand-specific and global replication dynamics. 👉 rdcu.be/e1bBt
rdcu.be
PAF15–PCNA exhaustion governs the strand-specific control of DNA replication
Nature - PCNA–PAF15 has a key role in determining replisome dynamics during genome replication and protecting against genome instability.
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Luijsterburglab @luijsterburglab.bsky.social · 15/01/2026
Excited to share our new Nature study! 🧬 We (sidrituruci.bsky.social et al) discovered that CFAP20 helps clear stalled RNAPII, preventing harmful clashes with DNA replication machinery. This protects cells from R-loops and genome instability. Full paper: www.nature.com/articles/s41...
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Susi Bantele @sbantele.bsky.social · 06/11/2025
𝗖𝗮𝗻 𝗰𝗲𝗹𝗹𝘀 𝗲𝘃𝗲𝗿 𝘁𝗿𝘂𝗹𝘆 𝗿𝗲𝗰𝗼𝘃𝗲𝗿 𝗳𝗿𝗼𝗺 𝗗𝗡𝗔 𝗱𝗮𝗺𝗮𝗴𝗲?Excited to share our new study “Repair of DNA double-strand breaks leaves heritable impairment to genome function”, revealing DNA repair’s hidden cost, out now @science.org tinyurl.com/5n6zw3ye. Led by @sbantele.bsky.social and Jiri Lukas.🧵👇1/n
tinyurl.com
Repair of DNA double-strand breaks leaves heritable impairment to genome function
Upon DNA breakage, a genomic locus undergoes alterations in three-dimensional chromatin architecture to facilitate signaling and repair. Although cells possess mechanisms to repair damaged DNA, it is ...
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Scaffidi Lab @scaffidilab.bsky.social · 30/09/2025
Histone acetylation - not always about transcriptional activation: H4K16ac safeguards the genome replication program by repressing premature replication of heterochromatin. Well done Marta Milan! tinyurl.com/yuy9m8t3
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The Groth lab @grothlab.bsky.social · 28/08/2025
We have lift off!! 🚀 Yesterday was the official opening of EpiC! The DNRF Center for Epigenetic Cell Memory at the Danish Cancer Institute! Our EpiC team with director Anja Groth @groth-anja.bsky.social, were joined by Jesper Fisker, CEO @cancer.dk & Niels Mejlgaar, CEO @dg.dk to celebrate 🎉
Image of Niels Mejlgaar (CEO of DNRF), Anja Groth (EpiC director) & Jesper Fisker (CEO of DCS).
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Marcel Werner @marcelwerner.bsky.social · 17/08/2025
PhDone! Last week, an incredible journey of 4.5 years came to an end when I defended my PhD at the LMU in Munich. I am tremendously grateful for all the fun moments throughout this chapter, full of learning and doing cool science.
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Marcel Werner @marcelwerner.bsky.social · 04/08/2025
Great work from @ioannistsirkas.bsky.social and the @hamperllab.bsky.social!
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Marcel Werner @marcelwerner.bsky.social · 29/07/2025
Great overview on some of the recent work from my PhD lab! @hamperllab.bsky.social
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Andreas Ingham @andreasingham.bsky.social · 19/06/2025
Linker histone expression is uniquely controlled by a specific pathway, which can be manipulated to increase TOP2i sensitivity! Proud to share first authorship on our story now out in @cp-molcell.bsky.social. www.cell.com/molecular-ce...
cell.com
CRAMP1-dependent histone H1 biogenesis is essential for topoisomerase II inhibitor tolerance
Ingham et al. identify a dedicated H1 linker histone biogenesis pathway in human cells, driven by the protein CRAMP1 that functions as an H1 transcription factor. They demonstrate that defective CRAMP...
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ME Torres-Padilla @metorrespadilla.bsky.social · 12/06/2025
Are you @ the late stages of your postdoc ? Want to pursue a PI career ? Then this 👇👇 is for you ! Apply for a spot @ our Talent Forum www.helmholtz-munich.de/en/stem-cell... Peer-networking / Career orientation and more !!! Please distribute :) 🙂
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Andreas Panagopoulos @apanagopoulos.bsky.social · 21/05/2025
Delighted to share that the results of my main postdoc project are now published in @nature.com 🔗 doi.org/10.1038/s415...
doi.org
Multigenerational cell tracking of DNA replication and heritable DNA damage - Nature
A multigenerational single-cell tracking approach provides a framework to dissect phenotypic plasticity at the single-cell level, offering insights into cellular processes that may resemble early even...
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The Groth lab @grothlab.bsky.social · 20/05/2025
🚨 Postdoc wanted (🇳🇱NL based) for our exciting collaboration with the lab of Alexander van Oudenaarden @hubrechtinstitute.bsky.social in Utrecht, with collaborative visits to our lab Copenhagen 🇩🇰. We seek a computational scientist to model epigenetic inheritance, see more below 👇!
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Jeroen van den Berg @jervdberg.bsky.social · 16/05/2025
🧬Postdoc position alert! 🚨 We're hiring a postoc in Computational Modeling of Epigenetic Inheritance at the Hubrecht Institute (Alexander van Oudenaarden, Utrecht 🇳🇱) & Danish Cancer Institute (Anja Groth, Copenhagen 🇩🇰). Come work in our collaberative team of top scientists shorturl.at/avBBy
shorturl.at
Postdoctoral Researcher - Computational modeling of Epigenetic Inheritance - 38 hours p/w - Hubrecht Institute
About the Project Faithful inheritance of the epigenome in proliferating cells critically underpins human development and health. While DNA replication fidelity and DNA mutation rates are well underst...
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Marcel Werner @marcelwerner.bsky.social · 01/05/2025
Delighted to share that I am joining @grothlab.bsky.social and @groth-anja.bsky.social at Danish Cancer Institute for my postdoc. 🇩🇰 I am looking forward to working on advancing our understanding of epigenome replication and maintenance. 🧬🧫
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Apoorva Baluapuri @baluapuri.bsky.social · 14/04/2025
Thrilled to see my postdoc work at Adelman Lab @hms-bcmp.bsky.social on Integrator(INT) now out @cp-cell.bsky.social. We found that INT deficiency allows immature+unlicensed RNAPII to precociously enter genes. This immature RNAPII can transcribe short genes but terminates prematurely in long genes:
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Lucas Farnung @lucas.farnunglab.com · 06/04/2025
🔬 New from the Farnung Lab: We established a fully in vitro reconstituted chromatin replication system and report the first cryo-EM snapshots of the human replisome engaging nucleosomes. Brilliant work by @felixsteinruecke.bsky.social with support from @jonmarkert.bsky.social! tinyurl.com/replisome
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Epigenetics at Helmholtz Munich @epihmgu.bsky.social · 25/03/2025
🌟 SAVE THE DATE: Talent Forum 2025! 🗓️ November 18–19 📍 @www.helmholtz-munich.de‬, Germany Showcase your research and network with global talents in #Epigenetics & Nucleic Acids Research! Apply by July 31 for a speaker spot —travel & accommodation covered. 🔜 Website coming soon!
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Marcel Werner @marcelwerner.bsky.social · 03/04/2025
Goodbye @hamperllab.bsky.social and thank you for incredible 4.5 years! It has been a pleasure to work with all of you and I will miss you a lot. Thank you also to @epihmgu.bsky.social and the Munich chromatin community. I could not have picked a better place to do my PhD! To new adventures! 🇩🇰
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Anja Groth @groth-anja.bsky.social · 28/03/2025
A few days left to apply for exciting PhD and Postdoc opportunities in wonderful Copenhagen and join our efforts in understanding Epigenetic Cell Memory.
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Hamperl Lab @hamperllab.bsky.social · 24/03/2025
Two days of science, international cooking, and breathtaking hikes in the Bavarian Alps—our lab retreat in Mittenwald had it all! Great discussions, great food, and even better company.
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Epigenetics at Helmholtz Munich @epihmgu.bsky.social · 18/03/2025
🚨Paper Alert! 👏 Big congrats to @marcelwerner.bsky.social, ManuelTrauner & rest of @hamperllab.bsky.social team for this brilliant work! 🧬 Check out their amazing research diving into how #TRCs and DOT1L impact genome stability. A must-read 🧵 for #transcription, #replication & #epigenetics fans👇!
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The Groth lab @grothlab.bsky.social · 06/03/2025
𝐍𝐞𝐰 𝐦𝐞𝐜𝐡𝐚𝐧𝐢𝐬𝐭𝐢𝐜 𝐢𝐧𝐬𝐢𝐠𝐡𝐭𝐬 𝐢𝐧𝐭𝐨 𝐭𝐡𝐞 𝐫𝐞𝐠𝐮𝐥𝐚𝐭𝐢𝐨𝐧 𝐨𝐟 𝐡𝐢𝐬𝐭𝐨𝐧𝐞 𝐬𝐮𝐩𝐩𝐥𝐲! Excited to share our latest collaboration led by tkjeong.bsky.social and ciaranfrater.bsky.social! Structural determination of the histone chaperone ASF1 and its regulator CODANIN-1 uncovers how CODANIN-1 counters ASF1 activity. 🧵👇
rdcu.be
CODANIN-1 sequesters ASF1 by using a histone H3 mimic helix to regulate the histone supply
Nature Communications - CODANIN-1 negatively regulates the function of ASF1, the key chaperone for histone H3-H4 supply. Here the authors present the cryo-EM structure of the CODANIN-1_ASF1A...
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Anja Groth @groth-anja.bsky.social · 26/02/2025
SAVE THE DATE! The next EMBO | EMBL Symposium on 'DNA replication and genome maintenance: from basic biology to disease' will be held October 20-23, 2026.   Organized by Helle Ulrich (IMB), Johannes Walter (Harvard) and Anja Groth (Danish Cancer Institute). www.embl.org/about/info/c...
embl.org
DNA replication and genome maintenance: from basic biology to disease
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Marcel Werner @marcelwerner.bsky.social · 20/02/2025
I am delighted to share the main work of my PhD project in the @hamperllab.bsky.social now out in @narjournal.bsky.social. TRCs drive R-loop-dependent nucleosome eviction and require DOT1L activity for transcription recovery. academic.oup.com/nar/article/... #TRC #r-loop #chromatin More below 👇
academic.oup.com
Transcription-replication conflicts drive R-loop-dependent nucleosome eviction and require DOT1L activity for transcription recovery
Abstract. Progressing transcription and replication machineries profoundly impact their underlying chromatin template. Consequently, transcription-replicat
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The Groth lab @grothlab.bsky.social · 19/02/2025
𝐇𝐨𝐰 𝐝𝐨 𝐜𝐞𝐥𝐥𝐬 𝐫𝐞𝐦𝐞𝐦𝐛𝐞𝐫 𝐰𝐡𝐨 𝐭𝐡𝐞𝐲 𝐚𝐫𝐞 𝐚𝐟𝐭𝐞𝐫 𝐃𝐍𝐀 𝐫𝐞𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧? Our new study “Disabling leading and lagging strand histone transmission results in parental histones loss and reduced cell plasticity and viability” is out in 𝘚𝘤𝘪𝘦𝘯𝘤𝘦 𝘈𝘥𝘷𝘢𝘯𝘤𝘦𝘴. Led by @lleonie.bsky.social @biranalva.bsky.social 🧵 More below👇
tinyurl.com
Disabling leading and lagging strand histone transmission results in parental histones loss and reduced cell plasticity and viability
Losing parental histones during DNA replication fork passage challenges differentiation competence and cell viability.
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The Groth lab @grothlab.bsky.social · 12/02/2025
🚨𝐌𝐚𝐣𝐨𝐫 𝐉𝐨𝐛 𝐀𝐥𝐞𝐫𝐭!🚨The Groth @groth-anja.bsky.social, Mailand, Nilsson @nilssonlab.bsky.social & Krietenstein @nilskrietenstein.bsky.social labs are hiring 𝟔 𝐏𝐡𝐃&𝐩𝐨𝐬𝐭𝐝𝐨𝐜𝐬 to join the new Center for Epigenetic Cell Memory (EpiC) in Copenhagen, Denmark. Apply here: tinyurl.com/yvd93na2 & please share!
tinyurl.com
6 Postdoctoral and PhD positions in Center for Epigenetic Cell Memory (EpiC)
The Center for Epigenetic Cell Memory (EpiC) is a new Center of Excellence that will be established based on funding by the Danish National Research Foundation.
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Ana Janeva @anajaneva.bsky.social · 26/01/2025
I am thrilled to share that our latest pre-print from the @evahoermanseder.bsky.social lab 🐸🧬, is now online! Check it out here: www.biorxiv.org/content/10.1... Highlights and key findings from our study in the thread below 👇
biorxiv.org
Digital Reprogramming Decodes Epigenetic Barriers of Cell Fate Changes
Fates of differentiated cells in our body can be induced to change by nuclear reprogramming. In this way, cells valuable for therapeutic purposes and disease modeling can be produced. However, the eff...
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Meghana Oak @meghana-oak.bsky.social · 22/01/2025
✨ Excited to share my latest preprint on how H3K4 methylation promotes transcriptional memory from gametes to embryos across a transcriptionally silent window — crucial for proper zygotic genome activation and development. 🐸🧬✨ 📄 Check it out here:
doi.org/10.1101/2025... 👇 Highlights below
doi.org
H3K4 methylation-promoted transcriptional memory ensures faithful zygotic genome activation and embryonic development
In the life of a vertebrate embryo, gene expression is initiated for the first time at zygotic genome activation (ZGA). Maternally expressed transcription factors present in the embryo are essential f...
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Marlies Oomen @marliesoomen.bsky.social · 20/01/2025
Very excited to share our paper on Gene and Transposable Element expression in mammalian preimplantation development, online today! www.cell.com/cell/fulltex... A short thread to highlight some of our findings 🧵
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Ioannis Tsirkas @ioannistsirkas.bsky.social · 17/01/2025
Our lab has just joined the bluesky, show us some love! @hamperllab.bsky.social
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ME Torres-Padilla @metorrespadilla.bsky.social · 15/01/2025
Our Summer Internship call is out 👇👇 - we're looking for students excited about science who want to learn and have fun with us at Helmholtz Munich and @epihmgu.bsky.social - please spread the word !
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Francesca Mattiroli @fmattiroli.bsky.social · 12/11/2024
The peer-reviewed version of our paper is out! Thanks to all co-authors, editor and reviewers for the smooth process 🤓🎉 And don’t miss the chromatin haiku! www.cell.com/molecular-ce...
cell.com
Acute multi-level response to defective de novo chromatin assembly in S-phase
Dreyer et al. show the broad and rapid impact that acute inhibition of chromatin formation in S-phase has on DNA replication, chromatin stability, and cell-cycle progression. This study sheds light on...
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Marco Saponaro @m-saponaro.bsky.social · 21/11/2024
What happens when you overexpress one subunit of the RNA Pol II? Well, it depends on the subunit, but all deregulate transcription and induce genome instability @agagambus.bsky.social www.biorxiv.org/content/10.1...
biorxiv.org
RNA Polymerase II subunits overexpressions induce genome instability and deregulate transcription
Independently of the pathways or circuits deregulated in cancer cells, these present altered transcription patterns, often also direct consequence of deregulation of transcription factors. In this sen...
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