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Luca Giorgetti lab @FMI

@lucagiorgetti.bsky.social
1K followers 331 following 84 posts

We study transcriptional regulation and chromosome folding using an interdisciplinary approach combining wet- and dry-lab methods. giorgettilab.org @fmiscience.bsky.social

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Reposted by Luca Giorgetti lab @FMI
Rob Klose @robklose.bsky.social · 30/09/2026
Come join us April 2027 for the next instalment of the EMBL Chromatin and Epigenetics meeting. Great invited speakers and lots of talks selected from abstracts! It will be a fantastic meeting (despite the egregious nucleosome images...)
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Reposted by Luca Giorgetti lab @FMI
Joy Jeongyoon Choi @joyjoychoi.bsky.social · 14/09/2026
Excited to share our new preprint on in situ chromatin structure of the inactive X chromosome in differentiated female mouse embryonic stem cells. www.biorxiv.org/content/10.6... 🧵1/8
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Reposted by Luca Giorgetti lab @FMI
Caitie McCafferty @computingcaitie.bsky.social · 09/09/2026
I am looking for a lab manager for my group that I will be starting at the @fmiscience.bsky.social in February! We will use in situ structural biology to investigate dynamic ciliary processes. More info here —> bsky.app/profile/comp... #cilia #teamtomo #proteomics #protistsky
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Hannah Long @hannahlong.bsky.social · 08/09/2026
📣 Interested in non-coding disease-causing variants? Check out our review "Mechanisms underlying disease-causing variants in promoters and enhancers". Interesting mechanisms, challenges and future perspectives. Great to work with @wbickmor.bsky.social, Kun and Ryan! www.nature.com/articles/s41...
nature.com
Mechanisms underlying disease-causing variants in promoters and enhancers - Nature Genetics
This Review discusses how rare-disease-causing variants in the noncoding genome impact gene regulation, why these examples are so few and how new approaches could accelerate discovery of noncoding var...
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Reposted by Luca Giorgetti lab @FMI
Arnaud Krebs @arnaudkr.bsky.social · 12/08/2026
How many TFs to you need to open chromatin at enhancers? Very excited to see this one out! Check out the augmented version with combinatorial motif mutant libraries in Figure 5! Very proud of @guidobarzaghi.bsky.social @valentinabaderna.bsky.social @embl.org
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Luca Giorgetti lab @FMI @lucagiorgetti.bsky.social · 28/07/2026
Thank you @natgenet.nature.com for this nice Research Briefing www.nature.com/articles/s41... on our recent paper reporting live-cell measurements of Sox2 promoter bursting kinetics when varying its genomic distance from the SCR enhancer 👉 www.nature.com/articles/s41...
nature.com
The genomic position of an enhancer modulates bursting dynamics of the cognate promoter - Nature Genetics
We show that, in a genomic locus with minimal complexity, the distance between promoter and enhancer modulates the frequency of clustered transcriptional bursts. Thus, besides the nucleotide sequence,...
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Luca Giorgetti lab @FMI @lucagiorgetti.bsky.social · 15/07/2026
Our preprint is now out in @natgenet.nature.com ! doi.org/10.1038/s415... We measured Sox2 promoter bursting dynamics with the SCR enhancer positioned at different distances within a genomic locus devoid of confounding effects in mESC: Main findings in the 🧵 below:
doi.org
Enhancer control of promoter activity and variability via frequency modulation of clustered transcriptional bursts - Nature Genetics
Tünnermann et al. use live-cell imaging to study promoter activity under the control of an enhancer inserted at different genomic distances. RNA production from the promoter occurs in clusters of tran...
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Reposted by Luca Giorgetti lab @FMI
Takashi Fukaya @fukayalab.bsky.social · 06/07/2026
We have an open professor position at my institute, the Institute for Quantitative Biosciences, The University of Tokyo! www.iqb.u-tokyo.ac.jp/recruiting/2...
iqb.u-tokyo.ac.jp
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Reposted by Luca Giorgetti lab @FMI
Anders Sejr Hansen @andersshansen.bsky.social · 30/06/2026
Excited to see James' Genome-wide Absolute Quantification of Looping paper out in @natsmb.nature.com : www.nature.com/articles/s41... This has been in collaboration with @lucagiorgetti.bsky.social @leonidmirny.bsky.social @zechnerlab.bsky.social labs. Brief thread below on some key updates
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Luca Giorgetti lab @FMI @lucagiorgetti.bsky.social · 23/06/2026
Impressive and exciting new work by @andersshansen.bsky.social @leonidmirny.bsky.social @zechnerlab.bsky.social labs Live imaging of a synthetic enhancer-promoter system leads estimates of physical range of E-P communication + evidence for time-gated productive E-P encounters on the >1s timescale.
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Reposted by Luca Giorgetti lab @FMI
Cees Dekker @ceesdekker.bsky.social · 16/06/2026
WORK: our Bionanoscience department at TU Delft is looking to hire an Assistant Professor in Biophysics of Living Systems. Apply! Deadline 30 July careers.tudelft.nl/job/Delft-As... RT=nice
careers.tudelft.nl
Assistant Professor in Biophysics of Living Systems
Assistant Professor in Biophysics of Living Systems
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Reposted by Luca Giorgetti lab @FMI
Maxim Greenberg @maxvcg.bsky.social · 15/06/2026
🚨Preprint Drop🚨 We are very pleased to release our study on DNA methylation dynamics at enhancers during ESC differentiation! This work was led by Marlet Morales-Franco and Priscillia Lhoumaud 🧵(1/13) www.biorxiv.org/content/10.6...
biorxiv.org
Dual profiling of DNA modifications with enhancer features during the exit of naive pluripotency
Cis-regulatory elements, such as enhancers, play an essential role in coordinating gene expression programs during cellular transitions. As such, substantial efforts have been made to characterize enh...
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Reposted by Luca Giorgetti lab @FMI
Anton Goloborodko @golobor.bsky.social · 13/05/2026
our field may finally be cracking the puzzle of cohesin loop extrusion's role in enhancer! Careful biophysical measurements, engineered loci, and first-principle biophysical thinking are a powerful combo. An overview of Nora/Mirny lab's preprint+important context by @lucagiorgetti.bsky.social
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Reposted by Luca Giorgetti lab @FMI
Elphege Nora Lab at UCSF @elphegenoralab.bsky.social · 13/05/2026
21/ In very exciting exciting new work using live imaging, @lucagiorgetti.bsky.social measured the duration of cohesin bridges ~ 10s - 2min This can climb up to ~ 10-30min with CTCF seen by @andersshansen.bsky.social here, @lucagiorgetti.bsky.social here & Christophe Zimmer/Edouard Bertrand here
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Luca Giorgetti lab @FMI @lucagiorgetti.bsky.social · 13/05/2026
Beautiful new study from @elphegenoralab.bsky.social and Leonid Mirny's lab: Cohesin-bridged encounters mediate enhancer-promoter communication, predicting how enhancer effect scales with genomic distance and - for the first time - how CTCF sites modulate enhancer-promoter communciation! 🧵 below
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Reposted by Luca Giorgetti lab @FMI
Elias Friman @eliasfriman.bsky.social · 11/05/2026
Is distal gene activation by enhancers inherently different from promoter-proximal activation? We propose not. But both cohesin and cooperativity are important aspects of how transcription is affected. Happy to share our recent preprint (thread below) 1/ www.biorxiv.org/content/10.6...
biorxiv.org
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Reposted by Luca Giorgetti lab @FMI
Schubeler Lab @schubelerlab.bsky.social · 07/05/2026
Excited to share our new study on CpG islands (CGIs) regulation by transcription factors (TFs)! CGIs drive most transcription initiation with unclear regulation. We find that chromatin-opening TFs are key players—following a surprisingly simple rule. 🧵 www.biorxiv.org/content/10.6... 1/9
biorxiv.org
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Reposted by Luca Giorgetti lab @FMI
Grand Lab @grandlab.bsky.social · 07/05/2026
Excited to share our first story led by @martinacapriati.bsky.social! How do cells control the expression of viability genes? We find that single transcription factors can drive both chromatin opening and gene activation from densely co-bound CpG island promoters, including at essential genes
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Reposted by Luca Giorgetti lab @FMI
Grand Lab @grandlab.bsky.social · 07/05/2026
Also take a look at the nice complementary work from the Schübeler lab (@schubelerlab.bsky.social) demonstrating that chromatin-opening TFs are key in defining the TSS in CGIs. www.biorxiv.org/content/10.6...
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Reposted by Luca Giorgetti lab @FMI
Maxim Greenberg @maxvcg.bsky.social · 01/05/2026
This a very important, and extremely well-executed study from Ralph Grand’s group @uniheidelberg.bsky.social. Congrats to all the authors! www.biorxiv.org/content/10.6...
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Luca Giorgetti lab @FMI @lucagiorgetti.bsky.social · 24/04/2026
Happy to see this paper in press @elphegenoralab.bsky.social together with the highly complementary study from Jan-Michael Peter's lab, and very much in line with Gerd Blobel's+@andersshansen.bsky.social recent results! Cohesin cofactor dosage controls rates of cohesin extrusion
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Reposted by Luca Giorgetti lab @FMI
Arnaud Krebs @arnaudkr.bsky.social · 24/03/2026
Want to know how histone marks regulate your favorite gene? Go single molecule with ChromSMF: integrated measure of chromatin accessibility and histone marks + DNA methylation, TF footprints and genotype for free! Very proud of @mpalamin.bsky.social ! @embl.org
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Reposted by Luca Giorgetti lab @FMI
EMBL Events @events.embl.org · 19/03/2026
@embl.org @eileen-furlong.bsky.social @lucagiorgetti.bsky.social
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Reposted by Luca Giorgetti lab @FMI
Elzo de Wit lab @ NKI @dewitlab.bsky.social · 18/03/2026
🧵 CTCF is essential for embryonic development, but why has remained unclear. By combining gastruloids with a temporal degron system, we uncovered a surprising dual function — and it changes how we think about CTCF's role in development. 1/8 www.biorxiv.org/content/10.6...
biorxiv.org
A dual role for CTCF in development
CTCF is an essential DNA binding protein whose absence leads to embryonic lethality. CTCF is primarily known for its role in 3D genome organization where its N-terminal domain interacts with cohesin to anchor chromatin loops. How CTCF facilitates proper embryonic development remains unclear, necessitating temporal control to resolve its stage-specific functions. By combining gastruloids, an in vitro model of embryonic development, with a degron system to rapidly deplete CTCF at defined timepoints, we show that early CTCF depletion impairs early gastruloid morphogenesis. Surprisingly, ATAC-seq and time-resolved RNA-seq revealed that differentiation was unaffected. CTCF binding is strongly enriched at promoters of downregulated genes. Re-expression of a CTCF variant with an N-terminal truncation, incapable of looping, was sufficient to rescue the expression of CTCF-promoter bound genes and the defects in morphogenesis. However, extended culture (up to 168 hours) of gastruloids reconstituted with N-terminal truncated CTCF led to their collapse. Our work shows that CTCF has a dual function in early mammalian development: at early stages CTCF regulates developmentally important genes through promoter binding, while at later stages its looping function is required for correct development. ### Competing Interest Statement The authors have declared no competing interest. European Research Council, https://ror.org/0472cxd90, 637587, 865459 Dutch Research Council, https://ror.org/04jsz6e67, 016.161.316, VI.C.222.049 Dutch Cancer Society, https://ror.org/0368jnd28, N/A
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Reposted by Luca Giorgetti lab @FMI
Bas van Steensel lab (NKI) @basvansteensellab.bsky.social · 19/03/2026
New preprint from our lab... We applied our hopping technology to relocate CTCF binding sites to thousands of alternative positions in the Sox2 locus: www.biorxiv.org/content/10.6...
biorxiv.org
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Reposted by Luca Giorgetti lab @FMI
David Brückner @davidbrueckner.bsky.social · 14/03/2026
How do pairs of DNA loci - such as enhancers and promoters - find each other inside the nucleus? 🤔 Most models assume the random forces driving locus motion are independent in space New preprint by @janniharju.bsky.social: this assumption fails in living cells 🧵 www.biorxiv.org/content/10.6...
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Reposted by Luca Giorgetti lab @FMI
Rob Klose @robklose.bsky.social · 13/03/2026
We are excited to be recruiting into 3 Associate Professorship's in @oxfordbiochemistry.bsky.social. Come join us as a colleague and benefit from our vibrant and multidisciplinary environment. Reach out to me if you have any questions. Please repost! (tinyurl.com/48deybuu) (tinyurl.com/4pdvjaft).
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Reposted by Luca Giorgetti lab @FMI
Maxim Greenberg @maxvcg.bsky.social · 09/03/2026
Very excited to announce the FIRST symposium on epigenome editing! These tools are becoming widely used in mol bio, ag & therapy. It's time to bring leaders together to discuss this rapidly growing and exciting field. And why not in Paris! Please register & share! (1/2) ctrlepiedit.sciencesconf.org
Flyer for symposium: https://ctrlepiedit.sciencesconf.org/
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Reposted by Luca Giorgetti lab @FMI
Edda Schulz @eddaschulz.bsky.social · 20/01/2026
⚠️ The final work of two former PhD students Till @tschwammle.bsky.social and Verena @verenamutzel.bsky.social is out! ➡️⬅️ They dissect how memory can arise from antisense transcription using mathematical modelling 💻, genomics 🧬 and synthetic biology ⚒️! link.springer.com/article/10.1...
link.springer.com
Antisense transcription can induce expression memory via stable promoter repression - Genome Biology
Background The capacity of cells to retain a memory of previous signals enables acquisition of unique fates and adaptation to their environment. The underlying gene expression memory can arise from mu...
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Luca Giorgetti lab @FMI @lucagiorgetti.bsky.social · 20/01/2026
Would anyone out there be able to share some Mus Spretus DNA with us? 🐀🧬 Any tissue of origin, for PCR amplification of selected genomic regions. Many thanks in advance!
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FMI science @fmiscience.bsky.social · 04/12/2025
📢 Please help spread the word: We’re hiring a Head of Student & Postdoc Affairs to coordinate our international PhD program, provide guidance & career counseling, lead training programs, collaborate on EDI initiatives, and manage alumni relations. Apply at www.fmi.ch/education-ca...
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Reposted by Luca Giorgetti lab @FMI
Bart Deplancke @bartdeplancke.bsky.social · 02/12/2025
We just released IRIS (7+yrs project), a tech we believe will transform cell biology by pairing high-resolution cell images with matched #scRNAseq, letting us interpret cellular form by its molecular ground truth. Huge tx to @JohannesBues, @JoernPezoldt, @CamilleLambert et al. shorturl.at/zgY8Z
Overview of Integrated Robotic Imaging and Sequencing, IRIS
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Luca Giorgetti lab @FMI @lucagiorgetti.bsky.social · 28/11/2025
And this is a fantastic result too
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Reposted by Luca Giorgetti lab @FMI
Elphege Nora Lab at UCSF @elphegenoralab.bsky.social · 27/11/2025
(23) If you move SRR2 further than ~20kb from the Sox2 promoter, it cannot support cohesin-independent action of the distal enhancer. ~20kb was the cuttof we say at Car2 for cohesin-independent action of enhancers. Makes sense!
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Luca Giorgetti lab @FMI @lucagiorgetti.bsky.social · 28/11/2025
This is a fantastic result!
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Reposted by Luca Giorgetti lab @FMI
Stephan Gruber @gruberlab.bsky.social · 25/11/2025
The hinge bypass gate paper is finally out! doi.org/10.1038/s414... We show how loop-extruding SMC complexes can maintain DNA entrapment while bypassing obstacles on DNA — including transcription machinery & potentially other SMCs. A lucky convergence of 3 projects lead to the initial discovery!
doi.org
The SMC Hinge is a Selective Gate for Obstacle Bypass - Nature Communications
SMC complexes are ring-shaped motors that fold DNA by extruding loops, but how they navigate large DNA obstacles is unclear. Here, Liu et al., show that SMC complexes bypass obstacles by threading obs...
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Reposted by Luca Giorgetti lab @FMI
Edda Schulz @eddaschulz.bsky.social · 17/11/2025
📣 SAVE THE DATE Next X-inactivation meeting in Sapporo, Japan, 19-23 October 2026. Visit x-inactivation-meeting.org to join our mailing list. 🧬 speakers @dandergassen.bsky.social @marnieblewitt.bsky.social @heard65.bsky.social @crougeulle.bsky.social @sexchrlab.bsky.social @zhouqi1982.bsky.social
Poster advertising the 6th X-inactivation meeting from Oct 19-23 2026 in Sapporo, Japan. The organizers are Asato Kuriowa, Edda Schulz, Ikuhiro Okamoto, Rafael Galupa, Takashi Sado, Mitinori Saitou.
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Reposted by Luca Giorgetti lab @FMI
Anders Sejr Hansen @andersshansen.bsky.social · 20/10/2025
Our collab w. V Goel, @nicholas-aboreden.bsky.social , J Jusuf, G Blobel, L Mirny, @irate-physicist.bsky.social out in @natsmb.nature.com www.nature.com/articles/s41... Was co-submitted with @allanaschooley.bsky.social @jobdekker.bsky.social whose paper should also come out soon Brief thread 👇
nature.com
Dynamics of microcompartment formation at the mitosis-to-G1 transition - Nature Structural & Molecular Biology
Goel et al. produce high-resolution three-dimensional genome structure mapping from mitosis to G1 phase to show unseen interactions between enhancers and promoters in prometaphase. Polymer modeling in...
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Reposted by Luca Giorgetti lab @FMI
Daniel Ibrahim @danielibrahim.bsky.social · 16/10/2025
What is a promoter? And how does it work? We very happy to share our latest work trying to understand enhancer-promoter compatibility. I am very excited about the results of @blanka-majchrzycka.bsky.social, which changed the way I think about promoters www.biorxiv.org/content/10.1...
biorxiv.org
Enhancer-promoter compatibility is mediated by the promoter-proximal region
Gene promoters induce transcription in response to distal enhancers. How enhancers specifically activate their target promoter while bypassing other promoters remains unclear. Here, we find that the p...
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Reposted by Luca Giorgetti lab @FMI
Elzo de Wit lab @ NKI @dewitlab.bsky.social · 16/10/2025
The TArgeted Cohesin Loader (TACL) paper was just published. Happy that we were able to contribute to this really exciting project! If you want to learn how targeting cohesin to defined loci in the genome affects the local chromatin environment and transcription, look no further! rdcu.be/eLiT5
rdcu.be
Characterization of induced cohesin loop extrusion trajectories in living cells
Nature Genetics - This study introduces a system called TArgeted Cohesin Loader (TACL) that recruits cohesin complexes at defined genomic regions and induces loop extrusion events in living cells,...
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Reposted by Luca Giorgetti lab @FMI
Rob Klose @robklose.bsky.social · 17/10/2025
We are recuiting two new Associate Professors here in Oxford Biochemistry. Come join us! Reach out to me if you have any questions. Please repost! tinyurl.com/mr3m7bd3
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Rob Klose @robklose.bsky.social · 17/10/2025
Come join us in Geneva for everything epigenetics and gene regulation. It will be a great meeting! Please repost! www.keystonesymposia.org/conferences/...
keystonesymposia.org
Epigenetics and Gene Regulation in Health and Disease: Linking Basic Mechanisms with Therapeutic Opportunities | Keystone Symposia
Join us at the Keystone Symposia on Epigenetics and Gene Regulation in Health and Disease: Linking Basic Mechanisms with Therapeutic Opportunities, March 2026, in Geneva, with field leaders!
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Edda Schulz @eddaschulz.bsky.social · 06/10/2025
⚠️ Paper alert: Using a novel CRISPR screening approach, we mapped the entire regulatory network controlling Xist—key for X-chromosome inactivation. 👉 We discover how sex and development signals are decoded at a single gene locus. www.nature.com/articles/s41... 👇 Bluetorial
nature.com
Reporter CRISPR screens decipher cis-regulatory and trans-regulatory principles at the Xist locus - Nature Structural & Molecular Biology
Here Schwämmle et al. develop CRISPR reporter screens to map transcription-factor-regulatory element interactions at the Xist locus, revealing a two-step mechanism integrating developmental and X-dosage signals to initiate X-chromosome inactivation.
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Francesca Mattiroli @fmattiroli.bsky.social · 28/09/2025
Join us at the Hubrecht Institute in Utrecht to start your research group! Fantastic scientific environment, strong support, and nice colleagues :) Apply and please share broadly in your network.
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Francesca Mattiroli @fmattiroli.bsky.social · 21/09/2025
The latest work from ours and @vram142.bsky.social lab is out! True teamwork to visualize nascent chromatin with strand resolution, using a fully reconstituted system. Very proud of superstar-PhD student Bruna, and @palindromephd.bsky.social. Learning so much from Vijay’s amazing technologies! RT
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Jop Kind @jopkind.bsky.social · 17/09/2025
1/ 🧵 I am excited to share a new preprint from our group: Single-cell Dam&T-seq during mouse corticogenesis reveals how genome–lamina interactions regulate long neuronal genes. doi.org/10.1101/2025... #Neurodevelopment #Epigenetics @hubrechtinstitute.bsky.social @oncodeinstitute.bsky.social
doi.org
MeCP2 binding and genome–lamina reorganization precede long gene activation during mouse corticogenesis
During corticogenesis, neural gene expression is tightly coordinated by chromatin and epigenetic changes, whose misregulation can lead to neurodevelopmental disorders[1][1]–[4][2]. The role of spatial...
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Luca Giorgetti lab @FMI @lucagiorgetti.bsky.social · 24/09/2025
Really excited to share our latest work led by @mattiaubertini.bsky.social and @nesslfy.bsky.social: we report that cohesin loop extrusion creates rare but long-lived encounters between genomic sequences which underlie efficient enhancer-promoter communication. www.biorxiv.org/content/10.1... A🧵👇
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Job Dekker @jobdekker.bsky.social · 23/09/2025
New work from my lab with the Brown lab on how genome folding changes during motor neuron maturation, and how this process goes awry in ALS motor neurons. Led by Dr. Ozgun Uyan. www.biorxiv.org/content/10.1...
biorxiv.org
Dynamic changes in chromosome and nuclear architecture during maturation of normal and ALS C9orf72 motor neurons
We have investigated changes in chromosome conformation, nuclear organization, and transcription during differentiation and maturation of control and mutant motor neurons harboring hexanucleotide expa...
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Reposted by Luca Giorgetti lab @FMI
FMI science @fmiscience.bsky.social · 17/09/2025
Another FMI Annual Meeting is in the books! After a night of follies and plenty of dancing, today brought the announcement of our internal prize winners, more inspiring talks, and a vibrant poster session. Already looking forward to next year! 🙌
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FMI science @fmiscience.bsky.social · 12/09/2025
📣The Turco group is seeking a computational biologist to analyze large omics datasets. Work on cutting-edge 3D organoid models of the human placenta and be embedded in our Computational Biology Platform (part of @sib.swiss). Apply here: www.fmi.ch/education-ca...
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