TIGRa: An ultra-compact programmable activator enabling multiplexed and efficient gene regulation.

TIGRa, a compact and multiplexable gene activator, achieves efficient activation of up to 12 genes and reprograms human cells with less than half the size of traditional systems.

• Why it matters: Effective gene regulation tools are limited by their large size and difficulty in delivering multiple targets simultaneously, hindering therapeutic applications and in vivo use.
• What they did: The team developed TIGRa, a small transcriptional activator derived from the TIGR-TasR system, capable of activating multiple genes at once and demonstrated its effectiveness in cell reprogramming and in vivo models.
• The result: TIGRa enables efficient multi-gene activation and therapeutic gene regulation in human cells and animal models, paving the way for advanced genetic therapies with improved delivery and multiplexing capabilities.