Local optogenetic control of genome editing and tumorigenesis in vivo using wireless implantable optoelectronics
Bansal, T.; Lee, M.-K.; Coleman, C.; Kim, Y.-M.; Chen, Y.; Haney, C. R.; David, O.; Sreekanth, V.; Avila, R.; Matsche, J.; Vijeth, S.; Hintermueller, D.; Yamagishi, K.; Kang, J.; Mowry, K.; Kim, M.; Liu, Y.; Toth, P. T.; Lee, S. S.-Y.; Loh, S.; Clark, S.; Huynh, H.; Kim, Y.; Banks, A. R.; Huang, Y.; Good, C. H.; Rehman, J.; Rogers, J. A.; Karginov, A. V.
Show abstract
Precise spatial regulation of site-specific DNA recombination (SSR) in vivo remains a challenge due to limited tunability of current platforms. Here, we present an optogenetic approach that overcome these limitations by employing engineered light-regulated recombinase E-LightR-Cre and tunable wireless implantable optoelectronic devices. E-LightR-Cre meets the key criteria for spatial regulation of SSR in vivo, showing no detectable activity in the dark, while demonstrating robust activation upon blue-light illumination. To achieve local E-LightR-Cre activation in murine lungs, we developed wireless, fully-implantable optoelectronic devices enabling focal illumination with no discernible organ damage. By modulating illumination intensity and duration, we can control the size of the activated area. Local expression of oncogenic KRas-G12D in a photoactivated subpopulation of cells in vitro revealed rapid reprogramming of the mutant expressing cells and their non-activated neighbors. Light-guided activation of E-LightR-Cre in mouse lungs resulted in focal expression of a reporter gene and allowed us to induce local formation of oncogenic lesions in vivo.
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