--- title: 'Research Daily Summary: What Happened on October 26, 2026' headline: ETH Zurich researchers create an archive of cellular RNA description: The method preserves RNA for days, letting researchers examine past gene activity alongside a cell’s current state. url: https://thebench.bio/news/research/2026-10-26 topic: research date: '2026-10-26' covers: - '2026-10-26' date_published: '2026-10-26T12:05:00Z' date_modified: '2026-10-26T12:05:00Z' tags: - Industry - Research sources: 6 publisher: TheBench.Bio --- # Research Daily Summary: What Happened on October 26, 2026 **ETH Zurich researchers create an archive of cellular RNA** The method preserves RNA for days, letting researchers examine past gene activity alongside a cell’s current state. ## Today in brief An ETH Zurich team developed a method to preserve thousands of RNA molecules in each cell for several days, offering a record of earlier gene activity as well as the cell’s current state. [1] Other research updates covered lipid nanoparticles for large RNA cargos, adenosine receptor blockade in cardiac fibrosis, an IL-21 mimic with KRAS inhibitors, senescent-cell nanotherapy and in-body engineering of CAR natural killer cells. [2] [3] [4] [5] [6] ## Also worth knowing - Dong and colleagues reported that lipid nanoparticles optimized for large RNA cargos and tissue targeting enhanced genome editing in vivo. Delivery efficiency often falls as cargo size increases. [2] - Blocking adenosine receptors alleviated cardiac fibrosis, which can stiffen heart tissue and impair heart function. No approved therapy directly targets the condition. [3] - An IL-21 mimic worked synergistically with KRAS inhibitors in pancreatic ductal adenocarcinoma. Responses to KRAS inhibitors can be short-lived, and acquired resistance is common. [4] - Hinterleitner and colleagues reported that a nanotherapy targeting senescent cells reduced fibrosis and overcame immune exclusion in cancer. The work is preclinical, and toxicity has hindered the translation of treatments targeting senescent cells. [5] - Chen and colleagues described using ligand-directed lipid nanoparticles to engineer CAR natural killer cells in the body. Producing large quantities of these cells outside the body creates time and cost challenges. [6] ## The day in numbers - **Thousands of RNA molecules per cell**: Approximate number the ETH Zurich archive can preserve for several days. [1] ## Also published - [Restoring antibiotic efficacy](), Nature Reviews Drug Discovery - [Giving AI a seat at the peer review table](), Nature Biotechnology ## Sources 1. [Retracing RNA’s steps with a novel method](), BioTechniques, 2026-10-26 2. [LNPs deliver large RNA cargos](), Nature Reviews Drug Discovery, 2026-10-26 3. [Antagonizing adenosine receptors alleviates cardiac fibrosis](), Nature Reviews Drug Discovery, 2026-10-26 4. [IL-21 mimic synergizes with KRAS inhibitors](), Nature Reviews Drug Discovery, 2026-10-26 5. [Nanotherapy targets senescent cells](), Nature Reviews Drug Discovery, 2026-10-26 6. [In vivo engineered CAR NK cells](), Nature Reviews Drug Discovery, 2026-10-26 --- TheBench.Bio wrote this from the reporting cited above, with a language model drafting and editing. [1]: [2]: [3]: [4]: [5]: [6]: