Reading the Labels on Mutant Mice
A recent Science paper genotyped 611 tissue samples from 341 mutant mouse strains at the MMRRC and found that nearly half of the strains were mislabeled, failing to meet users’ expectations for congenic consistency. The study highlights that current naming conventions often mask complex genetic backgrounds, leading to reproducibility concerns. To address this, the authors propose a standardized “MMRRC Strain GQC Report” that clearly documents strain type, allele, genetic background, and genome replicability. Adoption of this format could improve transparency across animal repositories and reduce wasted resources.
What Success Can Look Like, Darn It
Vepdegestrant, marketed as Veppanu, became the first FDA‑approved bifunctional degrader, a new PROTAC‑type therapy that eliminates target proteins. A Phase III trial showed it works but delivered no clear efficacy advantage over the existing degrader fulvestrant. Pfizer and Arvinas have now...
The Latest News in Vaccine Obstruction
Large-scale safety studies of COVID‑19 and shingles vaccines, analyzing millions of records, found rare serious side effects, but the FDA blocked their publication citing unsupported conclusions. The agency also refused to file Moderna’s mRNA flu‑COVID combo vaccine, despite European approval...
Ubiquitin Rides Again
A new Nature paper introduces a high‑throughput assay that reveals ubiquitination of non‑protein substrates, most notably glycogen. The study shows that ubiquitinated glycogen is routed to lysosomes for degradation, a pathway that intensifies during fasting and is disrupted in glycogen...
Progress Against Pancreatic Cancer, Part One
Revolution Medicines reported that its RAS‑targeting small molecule daraxonrasib more than doubled overall survival for patients with metastatic pancreatic ductal adenocarcinoma, extending median survival to 13.2 months versus 6.7 months on standard chemotherapy. The drug works by stabilizing a novel...
Consider the Selfish Ribosome
A new preprint argues that ribosomes, not cells, are the primary drivers of life, proposing a ribosome‑centric view of evolution. It suggests early ribosome‑like structures partnered with replicases, later acquiring metabolic functions to sustain themselves. The authors note that no...
New Bond Formations Just Keep On Coming
A new Nature paper introduces a streamlined iterative sp³‑sp³ coupling using t‑BuLi‑activated pinacol boronates (B(pin)) and copper(I) catalysis. The protocol retains stereochemistry at the boron‑derived carbon and tolerates a broad range of functional groups, from silyl ethers to pyridines. The...
Right Through the Skull
Researchers have unveiled a novel calvarial delivery platform that injects drug‑laden nanoparticles into the skull’s bone marrow. Immune cells within the diploic space capture the particles and migrate across skull‑meninges channels, ferrying the therapeutic cargo into the brain. In mouse...