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Volume 41 Issue 7, July 2023

Seeing cells with sound

Artistic impression of cells generating sound waves as a result of producing gas vesicles. Hurt et al. identify acoustic reporter genes that produce gas vesicles with strong non-linear ultrasound contrast.

See Hurt et al.

Image: Maayan Harel and Rob Soto. Cover Design: Erin Dewalt.

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  • By screening natural prokaryotic gas vesicle gene clusters, we found and engineered new acoustic reporter genes (ARGs) that give bacteria and mammalian cells brighter ultrasound contrast for real-time noninvasive imaging. Expressing these ARGs in engineered cells enabled us to image tumor-homing bacteria and perform genetically guided tumor biopsies in vivo.

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