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Christos Karampelias

@ckarampelias.bsky.social
1.1K followers 1.8K following 253 posts

Incoming Principal Investigator at Pan(c)gnosis laboratory, Lund University and as WCMM fellow. Check our work here: www.pancgnosislab.com Interests: developmental biology, diabetes research, teaching and learning in higher education

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Reposted by Christos Karampelias
Emma R Andersson @anderssonlab.bsky.social · 23/09/2026
🧬 Preprint! 🧵 Our goal is to genetically manipulate every embryonic germ layer to enable high throughput in vivo studies. We previously showed mouse ectoderm can be targeted by amniotic injection, enabling cell-specific manipulation, lineage tracing, and knockouts. But how to reach mesoderm?
Schematic of method developed and application. At embryonic day 7.5, a lentiviral library carrying unique 30-nucleotide barcodes and a fluorescent reporter is injected into the mouse exocoelomic cavity. An E8 embryo cross-section shows that this cavity is continuous with the intraembryonic coelomic cavity, allowing the virus to reach and barcode mesodermal progenitors, including lateral plate and paraxial mesoderm.
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Development @dev-journal.bsky.social · 21/09/2026
Issue 17 is now complete! Cover: A female Paryhale stained with phalloidin & DAPI, imaged by Natália Heloísa de Oliveira, Fernanda Salce & @federicasalatiello.bsky.social, at the 2025 @devbioquintay.bsky.social, winning the Node image competition. thenode.biologists.com/winners-from...
Cover: A wild, female Paryhale specimen stained with phalloidin and DAPI and then imaged by light-sheet microscopy and processed using Zen software at the 2025 Quintay International Course on Developmental Biology. Students from the course collected the specimen in Quintay Bay, Chile. Natália Heloísa de Oliveira, Fernanda Salce and Federica Salatiello captured the image, which won an image competition on the Node.
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Vaughn Cooper @vscooper.micropopbio.org · 16/09/2026
Authors!🚨 While you scramble for scarce $ 🤔 “Springer Nature reports revenue growth of 6.2%..and adjusted operating profit growth of 7.7%. They reported even more stunning submission growth of 30% and published article growth of 13%.” Publishing in society journals helps YOU not them👇🏻. Pass it on.
static.klipy.com
Man Lying on a Pile of Money
ALT: Man Lying on a Pile of Money
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Reposted by Christos Karampelias
Vicente Pérez-García @vpglab.bsky.social · 09/09/2026
🚨 New paper out! 🧬IRS2 helps build the placental maternal–fetal interface and supports fetal growth 👶🔬 A fantastic team effort using trophoblast stem cells, organoids, mouse models & more! Congrats to everyone involved! 🎉🥦 www.cell.com/stem-cell-re... #Placenta #stemcells @cbm-csic-uam.bsky.social
cell.com
Insulin receptor substrate 2 regulates placental syncytiotrophoblast differentiation at the maternal-fetal interface
Grinat et al. identify IRS2 as a central regulator of placental syncytiotrophoblast differentiation. Using mouse genetics, CRISPR-engineered trophoblast stem cells, and human trophoblast stem cells an...
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Christos Karampelias @ckarampelias.bsky.social · 07/09/2026
Dear reviewers of scientific manuscripts using AI to spit a 5 page long comment focused on tiny details and suggestions to rephrase sentences: I know you used, it is not constructive for me. To editors: please check the reviews are not AI generated before a decision
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Christos Karampelias @ckarampelias.bsky.social · 26/08/2026
So how does this work, we ask for a refund? In my mind when you pay to buy something it should work as sold? Biology, a research field where you have to validate yourself everytime what you pay with tax payers money and it is normal.
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Reposted by Christos Karampelias
8 Matts in a Duffel Bag @scratchbomb.bsky.social · 03/08/2026
i’m never gonna be able to fire a cruise missile yet the question of using my tax dollars for them has never been up for debate
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𝕯𝖆𝖓🍂🎃🕸️ @arepublic86.bsky.social · 03/08/2026
The next time a climate change denier comes at you with that excuse:
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Christos Karampelias @ckarampelias.bsky.social · 24/07/2026
Please read this if you do one thing today. Makes the blood boil. www.science.org/content/arti...
science.org
Exclusive: Death of girl in Chinese gene-editing trial was never made public
Parents want accountability after study went disastrously wrong, Science and Retraction Watch investigation reveals
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Reposted by Christos Karampelias
Christophe 🔬 Leterrier @christlet.bsky.social · 17/07/2026
🚨 Want to start your lab in Marseille on a broad neuronal/brain development theme? There's an exciting tenure track opportunity at @inp-marseille.bsky.social and others Marseille institutes! Check more details here: neuro-marseille.org/en/blog/juni... or contact me if you have any question
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Shayan Shamipour @shamipourshayan.bsky.social · 03/07/2026
🚀Excited to share our latest efforts in bringing highly multiplexed whole-mount imaging to intact multicellular systems! Shield-4i: an integrated platform to study multi-scale information flow in 3D embryos and embryo-like systems. Kudos to @rhornb.bsky.social for this major milestone in the lab!🚀
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Cornelia Schwayer @cschwayer.bsky.social · 01/07/2026
Excited to share that our work on ‘How the gut gets patterned during regeneration’ is out now cell.com/cell/fulltext/S0092-8674(26)00696-3 Thanks a lot to @priscaliberali.bsky.social @silviabarbiero.bsky.social @davidbrueckner.bsky.social @ehannezo.bsky.social and all co-authors! 🧵
cell.com
Multiscale integration of tissue and chromatin context converts cell heterogeneity into stable intestinal patterning
During regeneration, tissues must translate transient cellular variability into stable spatial organization. Tissue architecture generates a density-dependent window of heterogeneity in the mechanosen...
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Prisca Liberali @priscaliberali.bsky.social · 30/06/2026
It is out 😍 check it out!! Multiscale integration of tissue and chromatin context converts cell heterogeneity into stable intestinal patterning. @cschwayer.bsky.social @silviabarbiero.bsky.social @davidbrueckner.bsky.social @ehannezo.bsky.social www.cell.com/cell/fulltex...
cell.com
Multiscale integration of tissue and chromatin context converts cell heterogeneity into stable intestinal patterning
During regeneration, tissues must translate transient cellular variability into stable spatial organization. Tissue architecture generates a density-dependent window of heterogeneity in the mechanosen...
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Reposted by Christos Karampelias
Kris Willis @kawillis.bsky.social · 26/06/2026
As you might imagine, as someone who studies science and works on metrics, I have some thoughts on qed myself. I fully agree that the messaging can be described as tone-deaf and problematic. I don’t think it had to be. ripplingideas.org/2026/06/26/t...
ripplingideas.org
The 1% club and the rocky road ahead for bioRxiv
The recent launch of qed’s “top 1%” preprint ranking has sparked controversy, with concerns about its arbitrary nature, potential harm to authors, and low-quality inclusions. Whil…
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MwahahahahahadScientist @mads100tist.bsky.social · 26/06/2026
Don't use slop. Someone's trying to make money out of you and your colleagues and your friends. Do yourself a favor and read 100% human-crated content in @prelights.bsky.social Upload preprints. Read preprints. Cite preprints. Fuck AI 🧪
prelights.biologists.com
Homepage - preLights
Welcome to preLights, the preprint highlights service run by the biological community and supported by The Company of Biologists. Here, a team of scientists regularly review, highlight and comment on ...
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Alex Eve @amjeve.uk · 24/06/2026
Noticeable underrepresentation of women as corresponding authors in the 1%. Almost as if AI has been trained on years of discriminatory behaviours and is perpetuating that bias.
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Alex Eve @amjeve.uk · 19/06/2026
Please do chat to Dominique and Saanjbati about submitting to Development and our upcoming Special Issue – Plant and Algae Development #DevSIPlantAlgae journals.biologists.com/dev/pages/pl...
Call for papers - special issue
Plant and Algae Development
Editors: Dominique Bergmann and Susana Coelho
Submission deadline: 2 November 2025
Development logo. Colour image of plant leaves.
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Christos Karampelias @ckarampelias.bsky.social · 18/06/2026
Really enjoyed reading this well grounded piece by @amjeve.uk and @jamesbriscoe.bsky.social on the dreaded metric.It has many good recommendations, the only thing I would add is also the nice pre-print boom and what does this mean for citations of articles. journals.biologists.com/dev/article/...
journals.biologists.com
The elephant in the room: impact factor
Summary: This Editorial offers an honest look at impact factor trends in developmental biology, explains how Development serves its community, and makes the case that sustaining developmental biology ...
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Mark Peifer (He, him) @peiferlabunc.bsky.social · 18/06/2026
The array of organs in the animal body differ dramatically in their architecture, but cell-cell adhesion mediated by cadherins is a common principle. Our lab usually focuses on epithelia but cadherins are also active in migrating mesenchymal cells like these migrating testis myoblasts 1/n 🧪
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Bgee database @bgee.org · 16/06/2026
New preprint, where we present scFAIR, a consortium of single-cell data resources that has developed a unified metadata schema and common curation framework to improve the FAIRness of scRNA-seq data. www.biorxiv.org/content/10.6...
biorxiv.org
scFAIR Consortium: a decentralized hub for single-cell RNA-Seq data standardization and unification
The rapid accumulation of single-cell RNA-Seq (scRNA-seq) data across multiple repositories presents major challenges for data accessibility, integration, and reproducibility. While primary…
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Reposted by Christos Karampelias
James Gagnon @james-gagnon.bsky.social · 15/06/2026
Our new paper on interferon signaling during the response to heart injury is out today. doi.org/10.1242/bio....
doi.org
Interferon signaling is required for early neutrophil recruitment after zebrafish heart injury
Summary: Interferon-Φ1 signaling is required for early neutrophil recruitment after zebrafish heart injury, revealing a key immune trigger that shapes inflammation and may influence efficient cardiac ...
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Christos Karampelias @ckarampelias.bsky.social · 06/06/2026
I guess here we are with censorship? Diabetes experts removed from conference
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Development @dev-journal.bsky.social · 01/06/2026
Call for Papers Submit your latest plant and multicellular algae #DevBio research to our upcoming special issue – Plant and Algae Development #DevSIPlantAlgae Editors: @stanfordstomata.bsky.social & Susana Coelho Deadline: 2 November 2026 journals.biologists.com/dev/pages/pl...
Call for papers Special Issue
Plant amd Algae Development

Academic Editor Dominique Bergmann (Stanford University, USA) and Guest Editor Susana Coelho (Max Planck Institute for Biology, Tübingen, Germany).

Submission deadline: 2 November 2026

Development logo to the left
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bioRxiv Physiology @biorxiv-physio.bsky.social · 05/06/2026
Fixed-dose streptozotocin combined with high-fat diet induces a stable type 2 diabetes-like phenotype in C57BL/6J mice www.biorxiv.org/content/10.64898/20…
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Stem Cell Podcast @stemcellpodcast.com · 29/05/2026
Scientists have developed a human #CardiacAssembloid model that recreates neural control of #pacemaker activity and atrial conduction. Check out the paper: bit.ly/4wOuFEb Tune into the discussion: bit.ly/4tWDOI3
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Christos Karampelias @ckarampelias.bsky.social · 29/05/2026
Awesome Thermo and great reply from company -.- 400 per tube for these
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Ali Maximilian Erturk @erturklab.bsky.social · 28/05/2026
Our recent work in @Nature, MouseMapper uses foundation-model AI, mapping perturbations in mouse body cell-by-cell, revealed unexpected facial nerve damage. Proud to see >75K accesses & >60 news stories in the first week. Paper->> www.nature.com/articles/s41... Next www.biorxiv.org/content/10.6...
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Alicia Oshlack @aliciao.bsky.social · 27/05/2026
New paper from the lab! Spoiler: data driven methods performed better for normalisation than spike in CUT&RUN (again). Congratulations especially to Krutika Ambani for most of the work here now embarking on a PhD.
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Marieke Oudelaar @mariekeoudelaar.bsky.social · 26/05/2026
📣 Preprint alert! We developed a method to analyze concurrent interactions between multiple chromatin regions at single alleles at sub-nucleosome resolution (multi-way Micro-Capture-C, mwMCC) & used this to study structural synergy within super-enhancers. 1/14 www.biorxiv.org/content/10.6...
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John Wallingford @jbwallingford.bsky.social · 26/05/2026
Only FIVE DAYS LEFT to register for the 2026 Santa Cruz Dev Biol meeting! Great speakers! Tons of talks selected from abstracts! Workshop with Scott Fraser! Workshop with Rashmi Priya! Redwoods trees! 🧬🐸🐟🪰🐭🪱🍃🔥🔬. @devbiol.bsky.social @socdevbio.bsky.social scdb2026.sites.ucsc.edu
scdb2026.sites.ucsc.edu
Santa Cruz Developmental Biology Meeting
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Mike Feigin 🥯 @mikefeigin.bsky.social · 22/05/2026
🚨 New preprint from the Feigin Lab! 🚨 www.biorxiv.org/content/10.6... Opioids have profound effects on the pancreatic cancer microenvironment! An FDA-approved opioid antagonist that doesn't cross the blood brain barrier decreases tumor aggressiveness in a mouse model of pancreatic cancer!
biorxiv.org
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Tobias Greisle @tobiasgreisle.bsky.social · 21/05/2026
Excited to see our review out in @cp-trendsendomet.bsky.social! Great team effort and lots of fun to dive into how #islets form and how we can use this knowledge for #diabetes therapy. @mireiamoli.bsky.social @ckarampelias.bsky.social @heikolickert.bsky.social www.sciencedirect.com/science/arti...
sciencedirect.com
From architecture to function: mechanisms shaping pancreatic islet morphogenesis
Islets of Langerhans are highly structured mini-organs containing hormone-producing cells of the pancreas that regulate glucose metabolism. Studies of…
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Reposted by Christos Karampelias
Caroline Bartman @cbartman.bsky.social · 20/05/2026
🚨first Bartman lab preprint! it's an LC-MS method to measure "total Coenzyme A" (sum of all acyl-CoAs). this will let us study coA synthesis flux using heavy-isotope tracing! huge congrats to first author Amelia Taylor and star coauthor @mzspectrum.bsky.social ! www.biorxiv.org/content/10.6...
biorxiv.org
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Christos Karampelias @ckarampelias.bsky.social · 20/05/2026
Happy to share our work on characterizing pancreas adaptations during pregnancy in the pig. Our pig cohort allowed us to stratify between early and late pregnancy samples in a model resembling the human pregnancy in terms of gestation time and metabolism. www.biorxiv.org/content/10.6... #PancSky
biorxiv.org
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Christian Mosimann @chrmosimann.bsky.social · 08/05/2026
*** GRC Developmental Biology 2027 - Jan 17-22 @ Renaissance Tuscany Il Ciocco Resort *** Join us for a fabulous 2027 Gordon Conference on all things #devbio & the trainee-led GRS! More info on registration, abstract submission, et al., here: www.grc.org/developmenta... #GRCDevBio2027 🧬🐭🐟🪰🌱❤️
Flier for the Gordon Research Conference and Gordon Research Seminar 2027 on Developmental Biology, held at the Renaissance Touscany Il Ciocco Resort in Italy, January 17-22 2027. List of speakers, organizers, and tag line of Organizing Principles of Growth, Form, and Regeneration Driving Transformative Applications.
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European Research Council (ERC) @erc.europa.eu · 29/04/2026
NEWS: The ERC Scientific Council has listened to the concerns from members of the research community about changes to the re-submission rules, intended to manage the surge in demand for grants. The Scientific Council will readjust some of the changes: link.europa.eu/TBqRQJ
link.europa.eu
ERC Scientific Council readjusts rules for reapplication
The ERC Scientific Council has listened to the concerns from members of the research community about the recent announcement on changes to the re-submission rules. The changes, intended to manage the ...
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Development @dev-journal.bsky.social · 23/04/2026
We are pleased to welcome 8 new fellows to our Pathway to Independence programme. Welcome Maëlle Bellec, @iamzico.bsky.social, @evhealy.bsky.social, @josepmercadal.bsky.social, @nikhil-mishra.bsky.social, Jessica Perochon, Yamini Ravichandran & Margherita Zamboni. Read more⤵️ tinyurl.com/4bk4wrk7
Maëlle Bellec, Swarnabh Bhattacharya, Evan Healy, Josep Mercadal, Nikhil Mishra, Jessica Perochon, Yamini Ravichandran and Margherita Zamboni.
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Eric Topol @erictopol.bsky.social · 22/04/2026
This is a FRAUDULENT paper, AI-generated. My name was used as an author and I had nothing to do with it, never saw it until today e-pubmed.co.uk/journals/dig... The "Editors" Angelo Rossi Mori, David Mensah, and Zarnie Khadjesari and this "Journal" should be reported.
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Christos Karampelias @ckarampelias.bsky.social · 19/04/2026
Nah this is too easy of a solution, set up survivor type-games in Brussels. The one with more wins gets ALL the money.
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Reposted by Christos Karampelias
Alexis Verger 🧬🧫🧪 @alexis-verger.cpesr.fr · 17/04/2026
Dear funders, if you want to improve the success rate of your calls for scientific proposals, increase the budget instead of introducing new rules to try to reduce the number of applications.
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Alejandro Montenegro @aemonten.bsky.social · 17/04/2026
I'm looking for #NewPIs (<3 years as lab heads) in the gene regulation/functional genomics space. If you are one or know one, please comment below! 🧪
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Christos Karampelias @ckarampelias.bsky.social · 03/04/2026
Cool early stage model for development #DevBio pubmed.ncbi.nlm.nih.gov/41812656/
pubmed.ncbi.nlm.nih.gov
Totipotency and high plasticity in an embryo with an invariant, fate-specifying cleavage program - PubMed
All animal embryos begin as totipotent zygotes that cleave and produce cells with restricted fate potentials. However, the timing of when totipotency is lost and the processes through which embryonic cells acquire fates vary across species. Embryos with invariant cleavage programs, e.g., of nematode …
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Zebrafish Rock! 🎃 @zebrafishrock.bsky.social · 31/03/2026
Two weeks to submit your abstract ⌛ #ZebrafishMeeting When? June 8-11, 2026 Where? Sacramento, CA, USA Why? @neurofishh.bsky.social will be there!
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Kevin Thiessen, PhD @kevinthiessen.bsky.social · 28/03/2026
Want to make your images/videos more inclusive? Avoid Red-Blind LUTs! 🫷 While single-color red images are accessible, multi-color LUTs with red can be confusing for a small proportion of the population with Protanopia. I'll give a quick example from a paper I covered in journal club. 1/2
Text reads 'Avoiding Red-Blind LUTs: High frequency of Protanopia among general population" On the left a figure using a Red/Grey LUTs as it appears for people with normal vision. On the right a figure as seen by people with Protanopia.
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Christos Karampelias @ckarampelias.bsky.social · 25/03/2026
I read this at one sitting in the bus, it is a great review and very easy to read. Great summary of the genetics field on obesity! www.nature.com/articles/s42...
nature.com
The genetics of obesity: aetiology, prevention and therapy - Nature Metabolism
This Review discusses the genetics of obesity, highlighting its diverse forms and describing technological advancements in genetic studies that may enable precision medicine strategies to combat obesi...
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Zebrafish Rock! 🎃 @zebrafishrock.bsky.social · 20/03/2026
“Using this platform, we screened 2,320 FDA-approved small molecules for compounds capable of opening an intact BBB and identified 11 that reproducibly increased permeability… FishNAP thus enables systematic discovery of BBB modulators with direct translational potential for brain drug delivery.” 🧪
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Katie Mack @astrokatie.com · 17/03/2026
From @meganwachspress.bsky.social’s post (on having been the target of a professor’s advances as a student): “To want someone who wants to learn from you is to want someone for their powerlessness.”
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MwahahahahahadScientist @mads100tist.bsky.social · 16/03/2026
It's out! Happy to present ITEC, a semi supervised algorithm with an extremely low error rate that can track cells in files of any size (think Terabytes!). We used it in many organisms, including zebrafish, to study how organs form and linked it to gene expression www.biorxiv.org/content/10.6... +🧪
biorxiv.org
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Richard Sever @richardsever.bsky.social · 10/03/2026
This account of the eLife saga will provoke much debate. One aspect isn't accurate: eLife wasn't "designed as an experiment in removing gatekeepers". The original intent was to publish "outstanding papers" but have the gatekeepers be academic not professional editors 1/2 nikomc.com/2026/03/05/e...
nikomc.com
eLife Fallout
When a prestigious journal scrapped accept-reject decisions on submitted papers, some scientists rebelled, and the editor-in-chief was fired.
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Max Perutz Labs Vienna @maxperutzlabs.ac.at · 02/03/2026
Fantastic news! 🙌 The Perutz is excited to welcome Danny Nedialkova as a new group leader starting this April! 🎉 She will strengthen the institute's research on the fundamental mechanisms that shape cellular physiology and disease ➡️ www.maxperutzlabs.ac.at/research/res...
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