Journal
NATURE PROTOCOLS
Volume 9, Issue 10, Pages 2438-2449Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/nprot.2014.168
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Funding
- US National Institutes of Health (NIH) [DC005965, DC007704]
- Dorris Neuroscience Center
- Deutsche Forschungsgemeinschaft
- Bundy foundation
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Mechanosensation, the transduction of mechanical force into electrochemical signals, allows organisms to detect touch and sound, to register movement and gravity, and to sense changes in cell volume and shape. The hair cells of the mammalian inner ear are the mechanosensors for the detection of sound and head movement. The analysis of gene function in hair cells has been hampered by the lack of an efficient gene transfer method. Here we describe a method termed injectoporation that combines tissue microinjection with electroporation to express cDNANAs and shRNARNARNAs in mouse cochlear hair cells. Injectoporation allows for gene transfer into dozens of hair cells, and it is compatible with the analysis of hair cell function using imaging approaches and electrophysiology. Tissue dissection and injectoporation can be carried out within a few hours, and the tissue can be cultured for days for subsequent functional analyses.
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