Katja Petzold

@katjapetzold.bsky.social

RNA moving faster than the blink of an eye! (By NMR) Professor @Uppsala University
More @ PetzoldLab.com

@nobelprize.orgReposted by @katjapetzold.bsky.social

BREAKING NEWS The Norwegian Nobel Committee has decided to award the 2026 Nobel Peace Prize to Navanethem “Navi” Pillay for her efforts to promote peace and international law.

@katjapetzold.bsky.social

We’re looking for postdocs to explore RNA dynamics in biologically relevant conditions in an international and genuinely curious research team. If you’re interested in RNA changing its shape to perform its function (even inside a living cell), we'd love to hear from you. Details: petzoldlab.com

@anderssonlab.bsky.socialReposted by @katjapetzold.bsky.social

🧬 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.