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Gene Therapy Progress And Prospects: Ultrasound For Gene Transfer

 
  March, 21 2007 8:14
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Gene Therapy Progress And Prospects: Ultrasound For Gene Transfer

Publication:
Gene Therapy (2007) 14, 465–475.

Authors:
C. M. H. Newman and T. Bettinger

Correspondence:
Dr C. M. H. Newman, Room OU106, O Floor, Royal Hallamshire Hospital, Sheffield S10 2JF, UK.
E-mail: c.newman@sheffield.ac.uk

Abstract:
Ultrasound exposure (USE) in the presence of microbubbles (MCB) (e.g. contrast agents used to enhance ultrasound imaging) increases plasmid transfection efficiency in vitro by several orders of magnitude. Formation of short-lived pores in the plasma membrane ('sonoporation'), up to 100 nm in effective diameter lasting a few seconds, is implicated as the dominant mechanism, associated with acoustic cavitation. Ultrasound enhanced gene transfer (UEGT) has also been successfully achieved in vivo, with reports of spatially restricted and therapeutically relevant levels of transgene expression. Loading MCB with nucleic acids and/or disease-targeting ligands may further improve the efficiency and specificity of UEGT such that clinical testing becomes a realistic prospect.

Article available online.

(C) Gene Therapy.

Posted by: Tressie Dalaya.


Message posted by: Trevor M. D'Souza

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