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Lucas Waltzer

@lucaswaltzer.bsky.social
1.9K followers 786 following 191 posts

Group leader at iGReD Clermont-Ferrand, drosophila & epigenetics, food & mushrooms www.igred.fr/en/team/ero-epigenetic…

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Reposted by Lucas Waltzer
Nacho Molina @molinalab.bsky.social · 24/09/2026
Hey! You can have a look at our new preprint on #CellCycle regulation and #Pluripotency! A little thread 100% human 0% AI slop is coming (bear with me the mistakes). Let's thank first @maulik_nariya, the fantastic postdoc that led this project: www.biorxiv.org/content/10.6...
biorxiv.org
Comparison of cell-cycle gene expression dynamics and mRNA kinetics across mouse and human pluripotent systems
Cell-cycle remodeling is fundamental to pluripotency and lineage commitment, yet whether its transcriptional and post-transcriptional architecture is conserved across species and developmental states ...
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bioRxivpreprint @biorxivpreprint.bsky.social · 23/09/2026
Transcription factors read a second regulatory code in chromatin www.biorxiv.org/content/10.64898/20…
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Lucas Waltzer @lucaswaltzer.bsky.social · 18/09/2026
Thanks @colindascheele.bsky.social for her exciting talk @igred.fr on breast cancer and estrus! Very interesting !!
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Nicolas Hénin @nicolashenin.net · 17/09/2026
Nice campaign by the Norwegian Consumer Council about the declining lifespan of products. Enjoy!
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André Marques @amarques.bsky.social · 16/09/2026
Out today in Nature: sex without crossovers. Rhynchospora tenuis makes pollen, fertilises and sets seed, yet 0 crossovers in 10,997 pollen nuclei. Chromosome drive and ~87% seed abortion rebuild the mother's genotype, so the offspring are clones. doi.org/10.1038/s415...
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CNRS @cnrs.fr · 17/09/2026
#PressRelease 🗞️ This year’s CNRS Gold Medal has been awarded to the physicist Jacqueline Bloch for her discoveries relating to polaritons, hybrid particles that form when light interacts with matter. 👏 👉 www.cnrs.fr/en/press/cnr... #CNRStalents 🏅
The CNRS has awarded its 2026 Gold Medal to the physicist Jacqueline Bloch
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Marco MILAN LAB @milanlab.bsky.social · 16/09/2026
Milan Lab is recruiting a new PhD student. Deadline: October 30th. Please, spread the news. www.irbbarcelona.org/en/careers/y...
irbbarcelona.org
IRB Barcelona International PhD Fellowships - Extraordinary call 2026
The following will be offered in this call:Up to 8 FPI positions associated with the “Proyectos de Generación de Conocimiento 2025” Call (funded by the Agencia Estatal de Investigación AEI- MICINN).Ch...
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flymuscles @flymuscles.bsky.social · 15/09/2026
I am very happy to share our new preprint on #Drosophila muscles. @tiaramuld.bsky.social discovered flies have a tremendous ability to remodel their muscles after massive damage. www.biorxiv.org/content/10.6...
biorxiv.org
Evidence of complete myofibril remodeling after severe damage in adult Drosophila.
Muscle function depends on the ability of myofibrils to withstand and repair mechanical damage, yet how adult muscles remodel damaged myofibrils remains poorly understood. Here, we establish a Drosoph...
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Thomas Dietterich @tdietterich.bsky.social · 13/09/2026
We are seeing a new trend in submissions to @arxiv.bsky.social (and presumably to conferences and journals): Authors submitting papers whose contents they likely do not understand. 1/
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Rohan Khadilkar @rohankhadilkar.bsky.social · 13/09/2026
Our work uncovering how progenitor aging early during development can impact long term organ homeostasis is now online in @febsletters.bsky.social @febspress.bsky.social #stemcells #aging #longevity #development #Drosophila #science #research #devbio febs.onlinelibrary.wiley.com/doi/epub/10....
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Terence Tao @teorth.bsky.social · 11/09/2026
A group of 25 Fields Medalists, including myself, have made a joint declaration on Math and AI: mathandai.org . We welcome additional signatories. See also this article in the Economist announcing the declaration: www.economist.com/science-and-...
mathandai.org
Declaration — Math and AI
Read the declaration and add your name.
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Professor James Hodge @docfly.bsky.social · 10/09/2026
Please apply/advertise our fully funded MRC DTP PhD at Bristol University on Alzheimer genes, AI and sleep gw4biomed.ac.uk/using-human-... with Qiang Liu, @mnweedon.bsky.social, Rosie Bamford (Exeter University) Deadline 21/10
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The Company of Biologists @biologists.bsky.social · 07/09/2026
Save the date - @dev-journal.bsky.social, @jcellsci.bsky.social and @dmmjournal.bsky.social are holding a meeting on #Metabolism 📅21 – 23 June 2027 📍St Mary’s Marylebone, London, UK Register your interest for #BiologistsMetabolism now www.biologists.com/meetings/met...
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Genetics Society of America @genetics-gsa.bsky.social · 09/09/2026
The final three #Dros27 plenary speakers are here! 🧬 @shimlab.bsky.social 🪰 @rachelsmithbolton.bsky.social 🔬 Paul Schmidt From stem cells and tissue homeostasis to injury response, evolution, and adaptation, they complete an exciting lineup. 🔗 buff.ly/VviXmNk
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Dr. Hab Sophie Sacquin-Mora @sacquin-mo.eurosky.social · 08/09/2026
This is your yearly reminder that if you're interested in applying to a CNRS researcher permanent position in France, NOW is the right time to contact labs and build a research project. (not in December when the applications will officially open)
static.klipy.com
ALF It's time
Alt: ALF It's time
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Harmit Singh Malik @harmitmalik.bsky.social · 08/09/2026
So (if I understand this correctly), the way AI (companies) will "solve" all the major problems in maths, biology, and medicine in the next 5 years will be by stealing and building on the ideas of researchers naive enough to think their chats with AI companies would be private.
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Shicheng Guo @shihcheng.bsky.social · 06/09/2026
D&D-seq enables single-cell profiling of weak/transient DNA-protein interactions, enhancing understanding of TF binding dynamics and gene regulation. #ScienceInsights PMID:42242226, Cell 2026, @Cell www.cell.com/cell/fulltext/S0092-86… #Medsky #Pharmsky #RNA #ASHG #ESHG 🧪
cell.com
https://www.cell.com/cell/fulltext/S0092-8674(26)00573-8
No description available
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Reposted by Lucas Waltzer
Nozomu Yachie @nzmyachie.bsky.social · 04/09/2026
Maybe it’s time to say goodbye to UMAP and other low-dimensional embeddings (at least in many single-cell analyses). We developed MILK to encode single-cell populations into tree representations at unprecedented scales. www.biorxiv.org/content/10.6... Here’s what MILK is: 🧵
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Lucas Waltzer @lucaswaltzer.bsky.social · 04/09/2026
Really nice to start @igred.fr external seminar series with an inspiring talk from Geneviève Almouzni from @institutcurie.bsky.social #chromatin #epigenetics
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MRC Laboratory of Molecular Biology @mrclmb.ac.uk · 03/09/2026
The complete #connectome of the adult Drosophila male CNS has allowed researchers, inc @jefferis.bsky.social’s group, to compare male & female brains at synaptic-resolution for the first time. Read more here: mrclmb.ac.uk/news-events/... #LMBResearch 1/2
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Peter Andersen @germline.bsky.social · 02/09/2026
Finally - the 🧵! So, the piRNA pathway defends the animal germline from transposons. But most of what we know comes from narrow developmental windows like late oogenesis, where it's easiest to study. We asked if the pathway is the same across development. It is not! /+
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Christophe 🔬 Leterrier @christlet.bsky.social · 02/09/2026
Really cool! Smaller than GFP and reversibly binding last-generation rhodamine dyes. De novo pan-rhodamine binders for fluorescence microscopy from mammalian cells to extremophiles www.cell.com/cell/fulltex... Congrats @bohuang.bsky.social @rhodamine110.bsky.social @mullinslab.bsky.social et al
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Michaël Zemmour @michaelzemmour.cpesr.fr · 01/09/2026
Drame en 2 actes 1/ Vous êtes sur un escalier roulant. Comme il peut pleuvoir,  vous avez un parapluie. L'escalier se bloque. Un type arrive et dit, " forcément,  vous êtes trop lourd, j'ai la solution, donnez moi votre parapluie, vous serez plus léger" Vous donnez le parapluie.
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Tuta @tuta.com · 31/08/2026
If you have a Gmail account, you need to read this. Google's AI now scans your emails and attachments, bank statements, tax files, medical letters, all of it. It turned on by default, and there's a class-action lawsuit over how. Here are 5 moves to shut it off, the switch is hidden in two places:
Image of Sundar Pichai and the Gmail logo
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Peter Andersen @germline.bsky.social · 29/08/2026
We watched piRNAs and transposons across development, saw them dance tightly and wrote a paper about it. It's so cool to see it online and we will make a thread about it all very soon. Stay tuned :-)
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Barbara Moran @moranwriter.bsky.social · 27/08/2026
Yikes: “I cannot do my best work in America,” said Zamore. “I can’t recruit the best people to help me do that, and I can’t promise them an environment where they’ll be safe.” www.wbur.org/news/2026/08...
wbur.org
Why a UMass researcher is among the dozens leaving the U.S. for Canada
A renowned scientist at UMass Chan Medical School is moving his lab to Canada. The Canadian government named RNA researcher Phillip Zamore among the first recipients of awards that will total more tha...
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Andrea Musacchio @andrea-musacchio.bsky.social · 26/08/2026
Several mice, rabbits, sheeps, and donkeys indicted after the companies involved rejected all allegations of wrongdoing… reeserichardson.blog/2026/08/25/a...
reeserichardson.blog
At least 15 companies are selling antibodies using faked validation data
Popular vendors’ catalogs feature more than 18,000 manipulated images
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Lucas Waltzer @lucaswaltzer.bsky.social · 24/08/2026
"Our findings conservatively indicate that Smart-Seq may not be good at analyzing molecular diversity and that the results need to be interpreted with caution"... #drosophila #scRNAseq
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Lucas Waltzer @lucaswaltzer.bsky.social · 23/08/2026
My first Laetiporus sulphureus "chicken of the woods" #mushroom #fungi - not commonly eaten here in France but let's try !
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Life Science Network @lifesciencenet.bsky.social · 22/08/2026
Scientists unveil more than 600 new tissue models of human cancer. #science #cancer #news www.lifescience.net/news/7663/sc...
lifescience.net
Scientists unveil more than 600 new tissue models of human cancer
Derived from patient tumor samples and available to researchers around the world, the cells will aid the development of new cancer treatments.
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Reposted by Lucas Waltzer
Eva Maria Novoa @evamarianovoa.bsky.social · 20/08/2026
Need to #multiplex your #nanopore direct RNA runs? We are happy to announce an upgraded version of #SeqTagger #version2 with demuxing models for #mRNA (compatible with polyadenylated #rRNA) and #tRNA. Code and models publicly available in GitHub! github.com/novoalab/Seq...
github.com
GitHub - novoalab/SeqTagger: Super-fast and accurate demultiplexing of direct RNA-seq runs (Pryszcz*, Diensthuber*, et al., Genome Res 2025)
Super-fast and accurate demultiplexing of direct RNA-seq runs (Pryszcz*, Diensthuber*, et al., Genome Res 2025) - novoalab/SeqTagger
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Reposted by Lucas Waltzer
The Company of Biologists @biologists.bsky.social · 11/08/2026
We are gathering feedback from our readers, authors and reviewers about the use of AI tools in scholarly publishing. Have your say at: www.surveymonkey.com/r/ZBFC663
Community survey: The role of AI tools in scholarly publishing — announcement from The Company of Biologists, showing five stylized people and three speech bubbles to represent community discussion.
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Journal of Cell Biology @jcb.org · 19/08/2026
Using NLS-LARIAT in #Drosophila ovarian cells, Liu, @luisadistefano.bsky.social, Wang et al. reveal how rapid inhibition & clustering of GFP-tagged nuclear factors regulate border cell migration, nuclear mechanics, & the cell-fate consequences of nuclear protein dosage. rupress.org/jcb/article/...
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Trends in Genetics @cp-trendsgenetics.bsky.social · 19/08/2026
"A categorization of spatial transcriptomics methods for cell–cell communication analysis" by Nina Baumgarten & colleagues authors.elsevier.com/sd/article/S...
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aeris @aeris.eu.org · 19/08/2026
C’est qui qui a fuité aujourd’hui ? C’est l’Institut de recherche pour le développement bonjourlafuite.eu.org#Institut%20d...
bonjourlafuite.eu.org
C’est qui qui a fuité aujourd’hui ?
Une sponso avec Pampers peut-être ?
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Jack Bateman @jbateman01.bsky.social · 19/08/2026
Single-cell 3D genome imaging shows super-enhancer hubs are rare, nonspecific, and neither necessary nor sufficient for transcriptional bursting www.cell.com/cell-genomic...?
cell.com
Single-cell 3D genome imaging shows super-enhancer hubs are rare, nonspecific, and neither necessary nor sufficient for transcriptional bursting
Super-enhancers have been proposed to cluster in the nucleus when compared to other genomic elements. Le et al. found that super-enhancer clustering was rare and driven by non-specific interactions. P...
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@bilderlab @bilderlab.bsky.social · 17/08/2026
Now out in Annu Rev Cancer Biol: "Beyond Mice and Men." We think of cancer as a disease of humans, as well as pets 🐈‍⬛ 🐕 & lab mice. But cancer is found across the animal tree of life, including clams and fruit flies. Comparative oncology has a lot to teach us. 🧵 www.annualreviews.org/content/jour...
annualreviews.org
Beyond Mice and Men: Alternative Vertebrate and Invertebrate Models in Cancer Biology
While cancer looms large in the public and scientific minds, this can result in a quite narrow view of its range and manifestations. The centering of human clinical investigations and the popularity o...
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Marc Dionne @marcsdionne.bsky.social · 17/08/2026
Be my colleague! We are seeking Assistant/Associate Professors in these areas: Immunology, including but not limited to cellular immunology Infection, Bacteriology or Microbiology This is a good place to work, with excellent students and colleagues and an interactive, encouraging environment.
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Lucas Waltzer @lucaswaltzer.bsky.social · 17/08/2026
Appalling string of misconducts at Marseille IHU . 64 publications retracted & 270 with expression of concern... What a glorious success Dr Raoult!
link.springer.com
Follow-up investigation of ethics approvals and regulatory compliance in publications from the IHU-Mi - Research Integrity and Peer Review
Background Following our previous investigation of 456 articles published by the IHU-Méditerranée Infection (IHU-Mi) institute in Marseille, France, subsequent editorial actions, institutional reviews...
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Thiago Carvalho @cyrilpedia.bsky.social · 16/08/2026
'The investigation suggests the group embraced a dubious approach to identifying protective mutations, improperly changed patient data to tease provocative findings from Christchurch carriers, and published multiple papers containing suspect or copied images.' www.science.org/content/arti...
science.org
Science investigation casts doubt on genes hailed for warding off Alzheimer’s disease
Mutations found in Colombian families raised hopes for treatments. Altered patient data and suspect images call their benefits into question
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prachi-richa.bsky.social @prachi-richa.bsky.social · 14/08/2026
Excited to share our new publication!🎉 A huge thank you to everyone involved, colleagues and all our collaborators who contributed along the way. #NotchSignaling #DevelopmentalBiology #Neurogenesis #CellBiology #Drosophila #CellFate www.cell.com/current-biol...
cell.com
Notch-mediated lateral inhibition is shaped by morphological differences to reinforce bias toward signal-sending or -receiving roles
Richa et al. show that Notch signaling and cell mechanics work together to ensure the robust selection of a single neural precursor that never initiates Notch-dependent transcription. One cell is bias...
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vincentholst.bsky.social @vincentholst.bsky.social · 13/08/2026
In 2023, @nature.com published 'Papers and patents are becoming less disruptive over time', receiving world-wide media attention. Our Matters Arising, published after a 32 month delay (more on that soon), shows that the reported decline can largely be attributed to dataset artefacts. 🧵
The average CD_5 index per year for Web of Science. The original Park et al. decline (top curve) becomes essentially flat (bottom curve) when removing papers with CD_5=1. Those papers largely correspond to dataset artefacts.
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François Leulier @francoisleulier.bsky.social · 12/08/2026
Latest from the lab in its final form. We revisit the #Decretin concept in the light of growth adaptation to protein intake. PhD work of @longweibai.bsky.social at @igflyon.bsky.social #Drosophila
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Irene Miguel-Aliaga @irenemiguel-aliaga.bsky.social · 11/08/2026
Read about our latest work here www.cell.com/cell/fulltex... or let Alessandro tell you all about it (link below)!
cell.com
The sex and reproductive plasticity of intestinal muscles instruct gut size
Adult intestinal size plasticity is driven not only by epithelial stem cells but also by remodeling of the surrounding visceral musculature. Sex- and reproduction-dependent muscle remodeling controls ...
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The Francis Crick Institute @crick.ac.uk · 11/08/2026
“I believe my findings are just the tip of a bigger iceberg.” Read more about the work from Alessandro, a postdoc in our Organ Development and Physiology Lab led by @irenemiguel-aliaga.bsky.social, who studied changes in the female intestine during and after reproduction: bit.ly/4bElX2u
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Lucas Waltzer @lucaswaltzer.bsky.social · 11/08/2026
The only good thing about having suffered the hotest June & July ever in France, is that you don't feel too bad visiting Greece in August !
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eLife @elife.bsky.social · 06/08/2026
By publishing with eLife, you can support reform in research communication, review and assessment. Want to know what the experience is really like? Hear firsthand from authors who have published with eLife. buff.ly/B8XtSQc
buff.ly
Publishing in the eLife Model: An author’s perspective
Hear from some of our authors about their experience of publishing with us.
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Foteini (Faye) Mourkioti @mourkiotilab.bsky.social · 31/07/2026
I’m thrilled to finally share our work published today in Science Advances! Sometimes the most interesting discoveries come from asking old proteins new questions. www.science.org/doi/10.1126/...
science.org
TRF2 couples muscle stem cell identity to regenerative repair
Beyond telomere protection, TRF2 couples stem cell identity to regenerative repair through lineage-specific gene regulation.
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The EMBO Journal @embojournal.org · 03/08/2026
Membrane lipid composition and rapid endocytic retrieval modulate Wingless secretion Ines Alvarez-Rodrigo et al @jpvincentlab.bsky.social link.springer.com/article/10.1...
link.springer.com
Membrane lipid composition and rapid endocytic retrieval modulate Wingless secretion - The EMBO Journal
The Wnt family ligands carry a lipid moiety that must be shielded from the aqueous environment. During secretion, this is achieved by the cargo receptor Wntless. The effect of acute endocytosis inhibi...
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EXO - Beyond the Cell @exo-beyondthecell.bsky.social · 03/08/2026
What if the next breakthrough in #extracellularvesicle biology comes from a fly? 🪰 Evolution has conserved the core machinery of EV biology, making #Drosophila a powerful platform for discovering mechanisms relevant to human health. 🔗: sciexplor.com/exo/articles... #exosomes
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