Sign in

Martin Stortz

@mdstor.bsky.social
135 followers 231 following 608 posts

PhD, Molecular and Cell Biologist 🔬Transcription factors, genome organization, nuclear architecture, biomolecular condensates, optogenetics, fluorescence microscopy 🗣️Views are my own

PostsRepliesMedia
Reposted by Martin Stortz
Journal of Cell Science @jcellsci.bsky.social · 01/07/2026
In their Tools and Resources article, Martin Stortz @mdstor.bsky.social, Tom Misteli and colleagues present OptoLoop, an optogenetic tool to probe the functional role of genome organisation. journals.biologists.com/jcs/article/... #CellBio #nucleus
Figure showing optogenetic manipulation of proximity between repetitive genomic loci.
111
Reposted by Martin Stortz
Addgene @addgene.bsky.social · 09/03/2026
🧬💡 OptoLoop: An optogenetic tool to probe the functional role of genome organization - thanks for sharing, @mdstor.bsky.social! www.addgene.org/browse/artic...
addgene.org
Addgene: OptoLoop: An optogenetic tool to probe the functional role of genome organization.
031
Martin Stortz @mdstor.bsky.social · 05/03/2026
Want to try our new OptoLoop constructs for optogenetic control of chromatin looping? Check out our plasmids now available at @addgene.bsky.social www.addgene.org/browse/artic... And don't forget to read our new article published in @jcellsci.bsky.social journals.biologists.com/jcs/article/...
journals.biologists.com
OptoLoop – an optogenetic tool to probe the functional role of genome organization
Summary: The development of OptoLoop – an optogenetic tool to induce chromatin looping in a controlled fashion using light and how this tool can be applied to study genome structure–function relations...
072
Martin Stortz @mdstor.bsky.social · 10/11/2025
📣📣We are glad to have our new preprint out! 1) This work has been made as part of my postdoc at the Tom Misteli's lab at NCI/NIH. Here we introduce OptoLoop, an optogenetic tool to interrogate the not fully understood relationship between 3D genome organization and gene regulation.
120
Reposted by Martin Stortz
bioRxivpreprint @biorxivpreprint.bsky.social · 08/11/2025
OptoLoop: An optogenetic tool to probe the functional role of genome organization www.biorxiv.org/content/10.1101/202…
043
Reposted by Martin Stortz
bioRxiv Molecular Biology @biorxiv-molbio.bsky.social · 08/11/2025
OptoLoop: An optogenetic tool to probe the functional role of genome organization www.biorxiv.org/content/10.1101/202…
001
Reposted by Martin Stortz
Judd Legum @juddlegum.bsky.social · 29/09/2025
1. The $20 billion taxpayer-funded rescue package for Argentina, announced last week by the Treasury Secretary Scott Bessent, delivers an enormous windfall to hedge fund billionaire Rob Citrone. Citrone has a longstanding personal and professional relationship with Bessent.
popular.info
Trump’s Argentina bailout enriches one well-connected billionaire
A $20 billion taxpayer-funded rescue package for Argentina is a gift for a hedge fund manager with personal and professional ties to the Treasury Secretary
15124781475
Reposted by Martin Stortz
John Ngo @johntngo.bsky.social · 22/09/2025
🚀 Our new paper is out @natmethods.nature.com! Kuffer & Marzilli engineered conditionally stable MS2 & PP7 coat proteins (dMCP & dPCP) that degrade unless bound to RNA, enabling ultra–low-background, single-mRNA imaging in live cells. 🔗 www.nature.com/articles/s41... 🧬 www.addgene.org/John_Ngo/
622497
Reposted by Martin Stortz
Michael Booth @drmikebooth.bsky.social · 02/09/2025
We’ve developed the first-ever method to control nucleic acid activity and gene-expressing synthetic cells with a deeply tissue penetrating alternating magnetic field 🧬 🧪 🧲!!! Published in *Nature Chemistry* Led by Ellen Parkes @syncelleu.bsky.social #chemsky www.nature.com/articles/s41...
nature.com
Magnetic activation of spherical nucleic acids enables the remote control of synthetic cells - Nature Chemistry
The programmability of synthetic cells, comprising lipid vesicles that are capable of imitating the structure and function of living cells, facilitates their application as drug delivery devices. Now,...
66115
Reposted by Martin Stortz
Tanner Fadero @tanner-fadero.bsky.social · 19/08/2025
How many photons are in a GFP? — more than last year, and more than you thought. Here's a simple, cheap, and practical method to break a fundamental limit in fluorescence microscopy. But it only works in light sheet!
26018
Reposted by Martin Stortz
Rada-Iglesias Lab @radaiglesiaslab.bsky.social · 11/08/2025
Excited to share the latest work from the lab led by @eharo84.bsky.social, in which we have used synthetic biology to explore the mechanisms by which different types of long-range enhancers ensure robust and precise developmental gene expression www.biorxiv.org/content/10.1...
biorxiv.org
Synthetic engineering demonstrates that synergy among enhancers involves an increase in transcriptionally productive enhancer-gene contacts
Enhancers are non-coding cis-regulatory elements that control the expression of distally located genes in a tissue- and time-specific manner. Recent studies indicate that enhancers can differ in their...
56637
Reposted by Martin Stortz
Christophe Chapard @christophechapard.bsky.social · 09/08/2025
Pleased to see this study out, combining experimental work from our lab at the @cbitoulouse.bsky.social, in particular by @nathaliebastie.bsky.social and @beckof.bsky.social, and from Laura Chaptal and @alengronne.bsky.social at IGH Montpellier @cnrs.fr @cnrsbiologie.bsky.social Congrats to all!
cell.com
RNA Pol II-based regulations of chromosome folding
How transcription and cohesin complexes interact to regulate 3D genome organization remains unclear. Chapard et al. dissect their respective contributions and their interplay in shaping the genome arc...
12013
Reposted by Martin Stortz
Lennart Hilbert @lennarthilbert.bsky.social · 26/07/2025
How do enhancer-gene contacts relate to transcription activation? In mouse embryonic stem cells, a combo of STED, oligoFISH & RNA FISH shows that 3% of Dppa3 alleles transcribe. For these, enhancers and promoters come closer (panel E). Stumberger ... Leonhardt & Harz www.biorxiv.org/content/10.1...
16631
Reposted by Martin Stortz
Axel Delamarre @axeldelamarre.bsky.social · 17/07/2025
Our paper is now out in Molecular Cell! Check the thread in this former post: www.cell.com/molecular-ce...
cell.com
Chromatin architecture mapping by multiplex proximity tagging
Delamarre et al. develop a technology named PCP that can simultaneously map complex spatial relationships between millions of molecules. Using PCP, they investigate chromatin structure and describe si...
55628
Reposted by Martin Stortz
Anders Sejr Hansen @andersshansen.bsky.social · 20/07/2025
This seems like a really important paper comparing chromosome tracing methods, demonstrating that classical denaturing DNA-FISH and chromosome tracing leads to substantial distortion of 3D genome structure, likely due to the high-temperatures involved (70-90C): www.nature.com/articles/s41...
17317
Reposted by Martin Stortz
Waggoner Lab @labwaggoner.bsky.social · 17/07/2025
Designed protein pockets recognize intrinsically disordered protein regions @science.org www.science.org/doi/10.1126/... www.science.org/doi/10.1126/... www.statnews.com/2025/07/17/n...
science.org
Disorder meets its match
Designed protein pockets recognize intrinsically disordered protein regions
09441
Reposted by Martin Stortz
Joachim Goedhart @joachimgoedhart.bsky.social · 16/07/2025
What's the best software for making and styling a protein sequence alignment? Please tell me there's something better than MS Word?
Screenshot of protein sequences in MS Word
18289
Reposted by Martin Stortz
Kazuhiro Maeshima @kazu-maeshima.bsky.social · 10/07/2025
Our new preprint 🧬🔗 www.biorxiv.org/content/10.1... BRD4-NUT forms liquid-like condensates that locally constrain nucleosomes via BRD4-mediated crosslinking— physical control of #chromatin by #LLPS transcription condensates. @semeigazin.bsky.social @katsuminami.bsky.social @masaashimazoe.bsky.social
15025
Reposted by Martin Stortz
Evelina Tutucci @anilevetu.bsky.social · 08/07/2025
Optogenetic storage and release of protein and mRNA in live cells and animals | Nature Communications share.google/gz8nYXZ3hUVh... #spatialbiology #imagingtools #fluorescencemicroscopy
share.google
Optogenetic storage and release of protein and mRNA in live cells and animals - Nature Communications
Spatiotemporal control of biomolecules is a key challenge in cell biology. Here, authors introduce RELISR, an optogenetic condensate system enabling reversible, light-dependent sequestration and relea...
04415
Reposted by Martin Stortz
Evelina Tutucci @anilevetu.bsky.social · 06/07/2025
www.nature.com/articles/s41... #spatialbiology #imagingtools #fluorescencemicroscopy
nature.com
Genetically encoded affinity reagents are a toolkit for visualizing and manipulating endogenous protein function in vivo - Nature Communications
Probing endogenous protein localization and function in vivo remains challenging due to laborious gene targeting and monofunctional alleles. Here, using a toolkit consisting of genetically-encoded epi...
02912
Reposted by Martin Stortz
Evgeny Kvon @evgenykvon.bsky.social · 02/07/2025
Our paper describing the Range Extender element which is required and sufficient for long-range enhancer activation at the Shh locus is now available at @nature.com. Congrats to @gracebower.bsky.social who led the study. Below is a brief summary of the main findings www.nature.com/articles/s41... 1/
nature.com
Range extender mediates long-distance enhancer activity - Nature
The REX element is associated with long-range enhancer–promoter interactions.
1018791
Reposted by Martin Stortz
Elzo de Wit lab @ NKI @dewitlab.bsky.social · 01/07/2025
(1/n) Excited to present the latest work from the de Wit lab, where we identify and characterise loop extrusion-mediated fountains in mammalian genomes using acute depletion of 3D genome regulators: doi.org/10.1093/nar/.... A Bluetorial🧵:
doi.org
Extrusion fountains are restricted by WAPL-dependent cohesin release and CTCF barriers
Abstract. Interphase chromosomes are mainly shaped by loop extrusion and compartmentalisation mechanisms. However, their temporal component and cause-effec
36425
Martin Stortz @mdstor.bsky.social · 26/06/2025
Project 'Pierre Menard'
020
Reposted by Martin Stortz
Karsten Rippe @karsten-rippe.bsky.social · 19/06/2025
How do transcription compartments form — and does phase separation drive gene expression? I enjoyed discussing these questions with @akispapantonis.bsky.social a lot, and we put our thoughts together for @naturerevgenet.bsky.social, now out at rdcu.be/erP1u
15314
Reposted by Martin Stortz
Kalli Kappel @kallikappel.bsky.social · 17/06/2025
In the nucleus, many intrinsically disordered proteins (IDPs) form condensates. What IDP sequence features drive this behavior? We developed CondenSeq, a high-throughput approach to measure nuclear condensate formation, and applied it to ~14,000 IDPs to find out! rdcu.be/eq975
rdcu.be
Characterizing protein sequence determinants of nuclear condensates by high-throughput pooled imaging with CondenSeq
Nature Methods - CondenSeq is an imaging-based, high-throughput platform for characterizing condensate formation within the nuclear environment, uncovering the protein sequence features that...
37232
Reposted by Martin Stortz
Amy Strom @dnamystrom.bsky.social · 16/06/2025
If heterochromatin is really a liquid-like condensate, why is it not spherical? We investigated whether mechanical interactions between a condensate and a fiber network can explain the variety of morphologies seen in phase-separated nuclear compartments www.biorxiv.org/content/10.1...
59025
Reposted by Martin Stortz
Paolo Crosetto @paolocrosetto.bsky.social · 15/06/2025
Springer-Nature launched a series of "Discover" journals that closely mimic MDPI titles -- sharing *identical* journal names, and likely similar business model. What is going on, and why researcher will - as always - fall for it? A 🧵 the-strain-on-scientific-publishing.github.io/website/post...
the-strain-on-scientific-publishing.github.io
Springer Nature Discovers MDPI – The Strain on Scientific Publishing
Home page for the paper ‘The Strain on Scientific Publishing’ by Mark A Hanson, Dan Brockington, Paolo Crosetto and Pablo Gomez Barreiro
11251183
Reposted by Martin Stortz
Christian Schlieker @schliekerlab.bsky.social · 09/06/2025
We’ve pioneered a disease-agnostic screening platform for aberrant biomolecular condensates—cellular structures linked to incurable neurological diseases. We screened genes and FDA-approved drugs that modulate disease-relevant nuclear condensates: www.biorxiv.org/cgi/content/...
022
Reposted by Martin Stortz
Ariel Waisman @waisman-ar.bsky.social · 07/06/2025
Thrilled to share that my first #micropublication is out! 🧬🔬 I created a user-friendly ImageJ/FIJI plugin for nuclear segmentation and multi-channel fluorescence analysis that doesn't require programming skills. www.micropublication.org/journals/bio...
micropublication.org
Multi-Channel Nuclear Analysis: An ImageJ/FIJI Plugin for Automated Nuclear Segmentation and Multi-Channel Fluorescence Analysis | microPublication
2338
Reposted by Martin Stortz
Bede Portz @ysptsps.bsky.social · 04/06/2025
www.nature.com/articles/s41... From Denis Hnisz lab
nature.com
Probing condensate microenvironments with a micropeptide killswitch - Nature
Targeting a non-natural micropeptide ‘killswitch’ to several biomolecular condensates altered condensate compositions and revealed condensate functions in human cells
1134
Reposted by Martin Stortz
Diego Presman @presmanlab.bsky.social · 01/06/2025
Dear colleagues, Science in Argentina is under siege. Government funding has stopped and the system is about to collapse. Please help us spread the word to stop the exodus of our best human resources. youtu.be/76tYd-QRIfI?... www.nature.com/articles/d41...
youtu.be
Eternautas (EN)
YouTube video by RAICYT
043
Reposted by Martin Stortz
Wendy Bickmore @wbickmor.bsky.social · 30/05/2025
Great to see this published @genesdev.bsky.social. Evidence that enhancers can activate a bystander gene in an adjacent TAD, and that cohesin facilitates this. @uoe-igc.bsky.social. pubmed.ncbi.nlm.nih.gov/40436628/
15320
Reposted by Martin Stortz
Di Jiang @dijiang319.bsky.social · 29/05/2025
@science.org Expansion in situ genome sequencing links nuclear abnormalities to aberrant chromatin regulation | Science www.science.org/doi/10.1126/... @jbuenrostro.bsky.social @eboyden3.bsky.social + al @broadinstitute.org @harvard.edu #ExIGS #Chromatin #Lamin #Progeria #Aging #ExpansionMicroscopy
science.org
Expansion in situ genome sequencing links nuclear abnormalities to aberrant chromatin regulation
Microscopy and genomics are used to characterize cell function, but approaches to connect the two types of information are lacking, particularly at subnuclear resolution. Here, we describe expansion i...
04113
Reposted by Martin Stortz
Evelina Tutucci @anilevetu.bsky.social · 25/05/2025
#spatialbiology #RNAbiology www.nature.com/articles/s41...
nature.com
Programmable control of spatial transcriptome in live cells and neurons - Nature
CRISPR-TO, a system for programmable control of spatial localization of cellular RNAs, is presented and enables functional investigation of endogenous RNA localization in diverse living cells.
0368
Reposted by Martin Stortz
Jakob Trendel @jtrend.bsky.social · 23/05/2025
Excited our paper is out in Cell @cp-cell.bsky.social! 🧬⚡ DNA photo-crosslinking proteomics in living cells 🎯 Pinpoints protein-DNA interactions to single amino acids 🌎 Globally quantifies DNA binding for >1800 proteins at a timescale of minutes 🔗 www.cell.com/cell/fulltex... 🧵
cell.com
The human proteome with direct physical access to DNA
Zero-distance photo-crosslinking reveals direct protein-DNA interactions in living cells, enabling quantitative analysis of the DNA-interacting proteome on a timescale of minutes with single-amino-aci...
46724
Martin Stortz @mdstor.bsky.social · 19/05/2025
Our new paper is out in iScience. Congratulations for Belen! We have found new evidence that supports the involvement of glucocorticoid receptor condensates in transcription control.
011
Reposted by Martin Stortz
Molecular Systems Biology @molsystbiol.org · 15/05/2025
Extensive differences observed in 3D genome structure between homologous heterozygous chromosomes revealed by Genome Architecture Mapping #GAM in the @apombo1.bsky.social lab ➡️ www.embopress.org/doi/full/10....
12111
Reposted by Martin Stortz
Darío Lupiáñez @dariloops.bsky.social · 13/05/2025
🚨The formation of 3D chromatin hubs is a poorly understood phenomenon. I wrote a N&V about the excellent work Karpinska, Zhu and colleagues, from @mariekeoudelaar.bsky.social lab, who shed new light on the formation and function of these structures. rdcu.be/elPt3
nature.com
Decoupling chromatin hubs from gene control
Nature Structural & Molecular Biology - Chromatin hubs, which are formed during cell differentiation, are characterized by simultaneous interactions between multiple regulatory elements and...
35018
Reposted by Martin Stortz
Ben Sabari @bsabari.bsky.social · 25/04/2025
I am excited to share the latest paper from my lab where we leverage the selection bias of condensate-promoting oncofusions to uncover molecular rules governing condensate specificity and function. www.cell.com/cell/fulltex....
56924
Reposted by Martin Stortz
Evelina Tutucci @anilevetu.bsky.social · 23/04/2025
High-resolution dynamic imaging of chromatin DNA communication using Oligo-LiveFISH www.cell.com/cell/abstrac... #spatialbiology
cell.com
High-resolution dynamic imaging of chromatin DNA communication using Oligo-LiveFISH
Oligo-LiveFISH is an approach that can track diverse genomic loci at high spatial (20 nm) and temporal (50 ms) resolution and can work in diverse cell types, including primary cells. Combined with sup...
085
Reposted by Martin Stortz
Karsten Rippe @karsten-rippe.bsky.social · 12/04/2025
From enhancer hijacking to ecDNA and onco-condensates – we review how changes in nuclear architecture drive oncogenic gene expression by disrupting enhancer–promoter communication. doi.org/10.1002/ijc..... Kudos to Isabelle Seufert, @claire-vrgs.bsky.social and Sina Wille 👏
1238
Reposted by Martin Stortz
Mir Lab @mirlab.bsky.social · 09/04/2025
1/n: Excited to share our new preprint. We find that Dorsal transcription factor hubs exhibit gene-specific biophysical properties that tune transcriptional output. Read here: www.biorxiv.org/content/10.1.... Project was led by amazing graduate student Samantha Fallacaro (not on bsky)
biorxiv.org
Transcription factor hubs exhibit gene-specific properties that tune expression
The spatial and temporal control of gene expression relies on transcription factors binding to and occupying their target sites. Transcription factor hubs - localized, high-concentration microenvironm...
1129
Reposted by Martin Stortz
Rohit Singh @rohitsingh8080.bsky.social · 05/04/2025
Bio foundation models are great design and engg tools. But can they help decode the fundamental principles of life? We harnessed a single-cell FM for decoding the long-debated relationship between genome arch. and gene coregulation. 1/ Preprint here: www.biorxiv.org/content/10.1...
biorxiv.org
Tracing the Shared Foundations of Gene Expression and Chromatin Structure
The three-dimensional organization of chromatin into topologically associating domains (TADs) may impact gene regulation by bringing distant genes into contact. However, many questions about TADs' fun...
23111
Reposted by Martin Stortz
Luca Giorgetti lab @FMI @lucagiorgetti.bsky.social · 29/03/2025
Celebrating 10 years of our lab with a new preprint: www.biorxiv.org/content/10.1... How does enhancer location within a TAD control transcriptional bursts from a cognate promoter? Experiments by Jana Tünnermann and modelling by Gregory Roth
615059
Reposted by Martin Stortz
Anders Sejr Hansen @andersshansen.bsky.social · 14/03/2025
Check out Masahiro Nagano's preview www.sciencedirect.com/science/arti... for a very interesting paper from Tjalsma...Wouter de Laat www.cell.com/cell-genomic...
0153
Martin Stortz @mdstor.bsky.social · 13/03/2025
Glad to see that our review on the functional role of transcriptional condensates was one of the Top20 most downloaded articles from Communications Biology in 2024!
140
Reposted by Martin Stortz
Masa A. Shimazoe @masaashimazoe.bsky.social · 10/03/2025
My first, first author paper is now on bioRxiv! 🤩 Linker histone H1 is a liquid-like "glue" condensing chromatin, which revises textbooks! 📖✨ biorxiv.org/content/10.1... Huge thanks to my PI, @kazu-maeshima.bsky.social, for supervision. Amazing collab with @rcollepardo.bsky.social’s group!" (1/n)
1176
Reposted by Martin Stortz
Daan Noordermeer lab @daannoordermeerlab.bsky.social · 10/03/2025
Our study on how TAD boundaries actively influence the neighboring domains published today in @pnas.org: www.pnas.org/doi/10.1073/... Exciting outcomes from this interdisciplinary genomics/biophysical modeling strategy. See the thread for the BioRxiv preprint for a summary of highlights.
03413
Reposted by Martin Stortz
Kazuhiro Maeshima @kazu-maeshima.bsky.social · 07/03/2025
Our new preprint is out@bioRxiv: www.biorxiv.org/content/10.1... @masaashimazoe.bsky.social et al. reveal that linker histone H1 acts as a liquid-like glue to organize chromatin in living cells. 🎉 Fantastic collab with @rcollepardo.bsky.social @janhuemar.bsky.social and others—huge thanks! 🙌 1/
311439
Reposted by Martin Stortz
Jonny Coates @jacoates.bsky.social · 05/03/2025
Looking for folks from Argentina &/or Hungary who'd be willing to come on the podcast. Hoping to do an episode about the impact of what's currently happening in the US by focussing on places where similar attacks have already happened.
113