The Delivery Bottleneck Breaks: Bite-Sized CRISPR and the Tumor-Hunting Variant

This episode explores the long-standing challenge of delivering CRISPR gene-editing tools *in vivo* due to the large size of the Cas9 enzyme, which has historically necessitated cumbersome *ex vivo* treatments. It details a recent breakthrough involving the discovery and engineering of a much smaller, yet highly efficient, CRISPR system called Al3Cas12f RKK. Listeners will learn how this innovation, by combining compact size with high activity, could finally overcome the delivery bottleneck and revolutionize gene therapy by enabling direct, *in vivo* editing.