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Group leader @crg.eu | blood, single cell, synthetic genomics | Dad | 🇩🇪🇪🇸🇹🇿 | 🚵🧗🏃
Lars Velten








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Insightful seminar by Roderic Guigó: Figure 1 of the Craig Venter human genome paper (Science, 2001) was made by a Spanish PhD student who had no salary and earned his living serving tables in a Pizzeria.
3mo
Early bird registration is closing Feb 28! We will have an AMAZING party!
Proud of @juruehle.bsky.social for getting her PhD paper on biorxiv! In it, we take synthetic enhancer screens to the single cell level, offering new insight into how transcription factors and enhancers interact 👀
Now, synthetic enhancers with single cells - great work by @juruehle.bsky.social : www.biorxiv.org/content/10.6...
Expansion cultures of mouse AML stem cells! Enabling large scale genetic screens in a system that's very close to "the real thing", with deep implications for drug discovery. Great work @alejofraticelli.bsky.social and @indrasingh.bsky.social
Happy to see this out now in Cell Genomics: A genome-scale single-cell CRISPRi map of trans gene regulation across human pluripotent stem cell lines: www.cell.com/cell-genomic...
INTERESTED IN SINGLE-CELL LINEAGE TRACING? Check our new review @naturerevgenet.bsky.social from the @alejofraticelli.bsky.social lab 🎉🎉 nature.com/articles/s41... With Victoria Parreno, we tried to update the modern manual for genetic tracing and clonal analysis. Read link: rdcu.be/e50gy
3mo
3mo
3mo
🧬 How do immune disease-relevant variants affect gene regulatory networks in CD4+ T cells? 🧪🖥️ We coupled two large-scale CRISPRi screens (>4M cells) to map the downstream cascades of thousands of SNPs More details in the thread below 👇 or in the article 📖 on biorxiv tinyurl.com/CD4screens
3mo
6mo
Delighted to have our work on 🧬 resilience to 🩸cancer led by @g-agarwal.bsky.social & amazing collaborators, including @kharaslab.bsky.social, published in @science.org: www.science.org/doi/10.1126/... 🧵
Lars Velten
3mo
3mo
5mo
Exactly 25 years ago, @rodericguigo.bsky.social and his PhD student published the first draft of the human genome in Science. The Catalan researchers were the only two from all Spain that took part. Here they are reflecting on the huge scientific feat: www.crg.eu/en/news/25-y...
Feng et al. present the first genome-scale CRISPR interference perturbation map with scRNA-seq readout across many genetic backgrounds in human pluripotent cells, pioneering population-scale CRISPR pe...
www.cell.com
A genome-scale single-cell CRISPRi map of trans gene regulation across human pluripotent stem cell lines
In this Review, Rodriguez-Fraticelli and Parreno discuss advances in single-cell lineage-tracing methods and how their application to diverse biological processes, such as development, ageing and canc...
Charting single-cell lineages with synthetic and natural barcodes - Nature Reviews Genetics
nature.com
Lars Velten
Lars Velten
Lars Velten
Lars Velten
3mo
Britta Velten
ISCO (Innovations in Single-Cell OMICS) will be back in beautiful Barcelona! 🗓️ 28th/29th of May 2026 📍Barcelona Biomedical Research Park @prbb.org (beachfront!) Keynotes: @bartdeplancke.bsky.social and @bocklab.bsky.social Submit your abstract and present your research! www.isco-conference.eu
Alejo Rodriguez-Fraticelli
🚨 NEW @FraticelliLab PREPRINT JUST WENT LIVE biorxiv.org/content/10.6... Here, we describe PLSTCs, Soluplus-based expansion cultures of primary mouse *Acute Myeloid Leukemia* Stem Cells. And then we use LARRY barcoding to identify drivers of leukemogenicity and drug resistance!
Annique Claringbould
6mo
Out in Cell @cp-cell.bsky.social: Design principles of cell-state-specific enhancers in hematopoiesis 🧬🩸 screen of fully synthetic enhancers in blood progenitors 🤖 AI that creates new cell state specific enhancers 🔍 negative synergies between TFs lead to specificity! www.cell.com/cell/fulltex... 🧵
Vijay G. Sankaran
3mo
Centre de Regulació Genòmica (CRG)
The main project of my PhD 🧬🔬 is out: we developed single-cell lentiMPRA, a lentivirus-based method to measure enhancer activity and transcriptomes at single-cell resolution. We then applied sc-lentiMPRA to fully synthetic enhancers 🧩... 🔗 doi.org/10.64898/202...
May 8, 2025
3mo
Lars Velten
Lars Velten
Alejo Rodriguez-Fraticelli
Screen of minimalistic enhancers in blood progenitor cells demonstrates widespread dual activator-repressor function of transcription factors (TFs) and enables the model-guided design of cell-state-sp...
www.cell.com
doi.org
Design principles of cell-state-specific enhancers in hematopoiesis
Julia Rühle