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Gael Cristofari

@retrogenomics.bsky.social
647 followers 308 following 21 posts

Group leader at the Institute for Research on Cancer and Aging of Nice (IRCAN) CNRS, Inserm, University Cote d'Azur, Nice, France ircan.org/en/research/gael-cristofa… Repetitive DNA, Reverse transcriptases, Retrotransposons, Genomics #transposon

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Gael Cristofari @retrogenomics.bsky.social · 30/07/2026
That’s a beautiful story that shows again how powerful long reads are for studying transposable elements. Exciting times! For accessing the Perspective piece without a paywall: www.science.org/eprint/NIKHD...
science.org
Why the X chromosome is rich in L1 mobile elements
Preferential insertion into the late-replicating inactive X explains L1 accumulation in this chromosome
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Reposted by Gael Cristofari
Geoff Faulkner @faulknerlab.bsky.social · 30/07/2026
Our study published today @science.org shows that X-chromosome inactivation (XCI) attracts L1 mutations to the human X chromosome: doi.org/10.1126/scie... With outstanding Perspective from @aurelien-doucet.bsky.social & @retrogenomics.bsky.social: doi.org/10.1126/scie...
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Clément Goubert @clementgoubert.bsky.social · 25/06/2026
Major development in the #Transposon world! Repbase is joining the Dfam project and becomes open-access! link.springer.com/article/10.1...
link.springer.com
Unifying Repbase and Dfam: a new open foundation for transposable element research - Mobile DNA
Repbase and Dfam, the two foundational resources for transposable element annotation, are being unified into a single, fully open access framework, with Repbase released under CC-0 and its core curati...
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Alexis Verger 🧬🧫🧪 @alexis-verger.cpesr.fr · 07/05/2026
www.lalsace.fr/science-et-t...
lalsace.fr
Disparition. Le Mulhousien Pierre Chambon, sommité de la recherche scientifique, est décédé à 95 ans
Professeur honoraire au Collège de France, professeur émérite à la faculté de médecine de l’université de Strasbourg, ce natif de Mulhouse, âgé de ...
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Mathieu Lupien @matlupien.bsky.social · 08/05/2026
Excited to share our Nature Genetics Research Briefing on how the repetitive genome helps shape leukemia stemness. We found that transposable elements sustain stem-like states in AML and predict patient outcomes. www.nature.com/articles/s41...
nature.com
Alterations of chromatin state at transposable elements rewire stemness in acute myeloid leukemia - Nature Genetics
By mapping chromatin accessibility over transposable elements (TEs) across normal hematopoietic cells and the various cell types of primary acute myeloid leukemia (AML), we identified TE subfamilies w...
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Gael Cristofari @retrogenomics.bsky.social · 13/03/2026
Graduation ceremony at @univcotedazur.bsky.social 👩‍🎓Queen of the day: Dr. @larisaokorokova.bsky.social Congratulations ! #TEsky #MobileDNA
Gael Cristofari (left) and newly graduated Dr. Larisa Okorokova (right)
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Hervé (rv) Técher @rvtecher.bsky.social · 09/03/2026
Happy to share the first research article of our team. We report that foreign DNA, such as ISD, activates DNA damage signaling mainly through DNA-PK. @ircan.bsky.social @univcotedazur.bsky.social @cnrsbiologie.bsky.social @canceropolesud.bsky.social www.jbc.org/article/S002...
jbc.org
Interferon Stimulatory DNA activates the DNA damage signaling through ATM and DNA-PK sensing
In eukaryotic cells, DNA is normally confined in the nucleus and mitochondria and the presence of DNA in the cytoplasm is a danger signal that activates innate immune responses. Upon detection of cyto...
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Gael Cristofari @retrogenomics.bsky.social · 08/03/2026
Definitely ecdysone. But what are the kind of cracked lines and square overlapping with the molecule structure ?
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Joanna W Jachowicz @jjachowicz.bsky.social · 02/03/2026
If you want to explore ncRNA dynamics during mammalian development, love microscopy, and are not afaraid of transposons biology, apply‼️ We are looking for a postdoc to join our team at @imbavienna.bsky.social More details 👇🏻
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ASAP Team Jakobsson @jakobssonasap.bsky.social · 02/03/2026
Are you interested in achieving efficient silencing of transposable elements using CRISPRi? 🧬 🧫 Go ahead and have a look at this STAR protocols where Adami et al. share all the tips & tricks they use in the Jakobsson lab. @anitaada.bsky.social @raquelgarza.bsky.social @jakobssonlab.bsky.social
cell.com
Protocol for efficient CRISPRi-mediated silencing of retrotransposons in human pluripotent stem cells
Here, we present a workflow for transcriptional silencing of transposable elements (TEs) in human induced pluripotent stem cells (hiPSCs). We describe steps for designing guide RNAs (gRNAs) to target ...
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Gael Cristofari @retrogenomics.bsky.social · 27/02/2026
Key findings: 
1️⃣ L1s drive large-scale rearrangements including translocations (not just insertions)
 2️⃣ Frequency of these events was largely underestimated by short-reads 
3️⃣ They occur EARLY, thus potentially acting as drivers #Genomics #CancerResearch #MobileDNA @nanoporetech.com
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Gael Cristofari @retrogenomics.bsky.social · 27/02/2026
Huge congrats to Sonia Zumalave @bernardo-rodriguez.bsky.social @mobilegenomes.bsky.social es.bsky.social Jose Tubio & team! Happy to have (modestly) contributed! @inserm.fr @insermpacacorse.bsky.social @cnrsbiologie.bsky.social @univcotedazur.bsky.social @ircan.bsky.social
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Jose Tubio’s lab - Mobile Genomes @mobilegenomes.bsky.social · 26/02/2026
Today in @science.org: We are pleased to present our last work entitled: "Concurrent L1 retrotransposition events promote reciprocal translocations in human tumorigenesis" by Zumalave et al. www.science.org/doi/10.1126/...
science.org
Concurrent L1 retrotransposition events promote reciprocal translocations in human tumorigenesis
LINE-1 (L1) retrotransposition generates somatic genomic variation in human cancer, but short-read sequencing has limited our understanding of its structural consequences and dynamics. Using long-read...
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Gael Cristofari @retrogenomics.bsky.social · 27/02/2026
😅
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David W. Sanders! @davidwsanders.bsky.social · 25/02/2026
The function of nuclear speckles is revealed! This is an incredibly important paper with absolutely beautiful data! Wow! www.cell.com/cell/fulltex...
cell.com
Nuclear speckles enable processing of RNA from GC-rich isochores
Nuclear speckles are key subnuclear structures that regulate gene expression in GC-rich regions. This work shows that the evolution and expansion of core speckle proteins were crucial for the increase...
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Gael Cristofari @retrogenomics.bsky.social · 25/02/2026
Define ‘mid-career PI’. Asking for a friend.
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Johann Confais @johannconfais.bsky.social · 16/02/2026
🚨📢📄 Article in press in Genome Biology doi.org/10.1186/s130... We introduce panREPET, a reference-free pipeline to detect shared transposable element (TE) insertions across pangenomes and retrace their evolutionary dynamics #TEsky 🧵👇
doi.org
A reference-free pipeline for detecting shared transposable elements from pan-genomes to retrace their dynamics in a species - Genome Biology
Background The role of transposable elements (TEs) in host adaptation has gained interest in recent years. Individuals of the same species undergo independent TE insertions, providing genetic variabil...
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Gael Cristofari @retrogenomics.bsky.social · 06/02/2026
Thanks Josefa !
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Gael Cristofari @retrogenomics.bsky.social · 06/02/2026
Thank you and welcome to France !
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Gael Cristofari @retrogenomics.bsky.social · 06/02/2026
Thanks !
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CNRS Côte d'Azur @cnrscotedazur.bsky.social · 19/01/2026
Plongez dans les projets de recherche azuréens lauréats de l'@agencerecherche.bsky.social au travers de vidéos vulgarisées au format "tableau blanc" à retrouver ici 👇 🎥 www.cote-azur.cnrs.fr/fr/cnrsinfo/... @univcotedazur.bsky.social @insermpacacorse.bsky.social @cnrsbiologie.bsky.social
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Manvendra Singh @manusingh.bsky.social · 02/01/2026
Happy new year and 3 more days to apply for Computational biology post doc position in my lab #Paris #transpoosns @inem-necker.bsky.social @institutimagine.bsky.social
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Guillaume Bourque @guilbourque.bsky.social · 09/10/2025
🚨 New paper alert on telomeres! 🚨 Something different from the group! Thanks to Yuxin, a talented student in the lab, we used long-reads in 75 human trios to study telomeres and their inheritance.
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Gael Cristofari @retrogenomics.bsky.social · 11/10/2025
It was fun to write this preview with Larisa Okorokova. Congrats to @jakobssonlab.bsky.social and all coauthors for this nice piece of work !
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Guillermo Peris 🧬💻 @waltzingpiglet.bsky.social · 10/10/2025
Hominoid-specific retrotransposons fuel regulatory novelty in early brain development , by @retrogenomics.bsky.social. ➡️ www.cell.com/cell-genomic...
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Gael Cristofari @retrogenomics.bsky.social · 05/08/2025
open.substack.com/pub/clauswil...
open.substack.com
From the archives: When should you stop doing science and start writing a paper?
Start writing as soon as you have at least one result.
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Reposted by Gael Cristofari
Julius Brennecke @juliusbrennecke.bsky.social · 16/07/2025
Pls. share widely Calling all transposon fans & lovers of genetic innovation MOBILE GENOME welcomes you in Heidelberg, Nov. 4–7 2025 → Vibrant & friendly community → Cutting-edge talks from mechanisms to physiology → Plenty of surprises (TEs never stop innovating) submit abstract by July 29
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Université Côte d'Azur @univcotedazur.bsky.social · 09/07/2025
Connaissez-vous l'histoire des gènes sauteurs ?🧬 Dans cette vidéo, Gaël Cristofari, chercheur ( #UniCA, @cnrs.fr, @inserm.fr) explique de manière claire et illustrée comment ces gènes se déplacent et quel rôle essentiel ils jouent dans notre génétique. ➡️https://youtu.be/twtOhB-TPJk?feature=shared
youtu.be
White Board #1 : L'histoire des gènes sauteurs
YouTube video by Université Côte d'Azur
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Gael Cristofari @retrogenomics.bsky.social · 11/07/2025
🦟 Bioinformatics Research Scientist position open in my lab in Nice (FR) to study Aedes mosquito retrotransposons & their interactions with arboviruses collab w/ @salehlabparis.bsky.social & @lambrechtslab.bsky.social Apply: euraxess.ec.europa.eu/jobs/359830 Please boost! #ArboRetro #Bioinformatics
Aedes albopictus (asian tiger mosquito)
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Juliane Glaser @julianeg.bsky.social · 09/07/2025
Finally out! 🥳 Our paper showing how a transposable element (TE) insertion can cause developmental phenotypes is now published @natgenet.nature.com 🧬🦠🐁 Below is a brief description of the major findings. Check the full version of the paper for more details: www.nature.com/articles/s41588-025-02248-5
nature.com
Enhancer adoption by an LTR retrotransposon generates viral-like particles, causing developmental limb phenotypes - Nature Genetics
Activation of an LTR retrotransposon inserted upstream of the Fgf8 gene produces viral-like particles in the mouse developing limb, triggering apoptosis and causing limb malformation. This phenotype c...
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Reposted by Gael Cristofari
SalehLab @salehlabparis.bsky.social · 10/04/2025
Thrilled to receive @anrs-mie.bsky.social grant with @lambrechtslab.bsky.social & @retrogenomics.bsky.social! Making mosquitoes intolerant to arboviruses. Thanks @pasteur.fr, @inserm.fr & @cnrs.fr for support. Exciting times for #ARBORETRO project! Stay tunned.
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Gael Cristofari @retrogenomics.bsky.social · 07/02/2025
Please repost @cedricfeschotte.bsky.social @aktast.bsky.social @brancolab.bsky.social @emiliebrasset.bsky.social @jakobssonlab.bsky.social @macromomo.bsky.social
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Gael Cristofari @retrogenomics.bsky.social · 07/02/2025
Don't miss the first edition of the CSH-Asia meeting on "The Repetitive and Mobile Genome" taking place in Suzhou, China. 📅 Abstract submission deadline extended: Feb 21, 2025 👉 www.csh-asia.org?content/2544 #transposon #mobileDNA #TEsky
CSH-Asia "The Repetitive and Mobile Genome" meeting announcement poster
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EMBL Events @events.embl.org · 27/01/2025
📣 #EMBOMobileGenome is open for registrations! Assembling experts in genomics, epigenetics, structural biology, evolutionary biology, and developmental biology to discuss the broad impact of TEs on organismal biology. 🧬🔍 📜 Submit abstract by 29 July! 👉🏼 s.embl.org/mge25-01-bl
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Gael Cristofari @retrogenomics.bsky.social · 06/02/2024
Very proud of this work led by @sophielanciano.bsky.social 🖥️🧬🧪 #TEsky
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Sophie Lanciano @sophielanciano.bsky.social · 05/02/2024
I'm so excited to announce that our story on LINE-1 DNA methylation has been published in @CellGenomics 🥳🥳 With @retrogenomics.bsky.social @aurelien-doucet.bsky.social and all other authors. Enjoy the reading! www.cell.com/cell-genomic... See original thread below.
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Gael Cristofari @retrogenomics.bsky.social · 01/02/2024
@natureportfolio.bsky.social
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Rita Rebollo @ritarebollo.bsky.social · 01/02/2024
Forgot to say we already have at least 230 registered! A record! And if we are more than 200 at the gala diner, we can have our own dance floor 🕺 #TEworldwide
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Gael Cristofari @retrogenomics.bsky.social · 01/02/2024
Second paper: www.nature.com/articles/s41586-023-… (3/3)
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Gael Cristofari @retrogenomics.bsky.social · 01/02/2024
First paper: nature.com/articles/s41586-023-0694… 👇
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Gael Cristofari @retrogenomics.bsky.social · 01/02/2024
For a recap of the many new insights, I wrote this N&V: Snapshots of genetic copy-and-paste machinery in action www.nature.com/articles/d41586-024-… 👇
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Gael Cristofari @retrogenomics.bsky.social · 01/02/2024
Did you ever wondered how "jumping genes" actually jump? 2 papers now published in Nature show the 3D structure of the enzyme responsible for this process for human LINE-1 retrotransposon (links 👇). Congrats to the authors! #TEsky #TEworldwide #transposon 🧪🧬🔬"Genome Stability" 👇
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