Transfection into Mouse/Rat Brain by Electroporation

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Tweezer Electrodes

Needle/Other Electrodes

Petridish/Microscope Slide Electrodes

Cables, Foot Switch & Others

Transfection into Mouse/Rat Brain by Electroporation

APPLICATIONS

Electroporation-mediated gene transfer in the adult rat brain

Figure A: EGFP expression in the medial preoptic nuclei of a female rat examined 4 days after bilateral electroporation at 10 weeks of age. (An asterisk indicates the trace of the positioning of the electrode)

Figure B: EGFP-positive cells (high magnification of Fig. A using a 60x objective lens). EGFP fluorescent signals are observed in the perikarya.

Figure C: Estrogen receptor αimmunoreactivity in the medial preoptic nuclei and the periventricular nuclei of an adult female rat.3V: third ventricle.

Figure D: Estrogen receptor α-positive cells (high magnification of Fig. C using a 60x objective lens). Estrogen receptor  immunoreactivity is prominent in the nuclei.

Tetsuo Shirakawa, Center for Advanced Oral Medicine, Hokkaido University Hospital

Electroporation-mediated gene transfer system applied to cultured CNS neurons

Schematic representation of an electroporation set-up.

A fragment of the mouse embryonic hippocampus was placed on a Millipore membrane filter and 5μl EP buffer containing 1mg/ml of plasmid DNA was applied onto the tissue.
A tungsten needle was attached to the surface of a droplet.
After application of square pulses the tissue fragment was returned to a petri dish containing ice-cold HBSS solution.

Electroporation-mediated expression of fluorescent proteins in hippocampal neurons.

(a-c) Organ culture of hippocampal tissue fragments three days after electroporation with CAG-eGFP
(a) Ta1X4 -eGFP, (b) and b-actin-eGFP, (c) expression constructs.

(d,e) A mature hippocampal neuron maintained 14 days in dissociated culture after electroporation of a -actin-eGFP expression construct. Higher magnification view of the region marked by a rectangle in (d) reveals dendritic spines on the surface of dendritic shafts (arrows in e).

(f,g) A hippocampal neuron 7 days after electroporation of 1:1 mixture of Ta1X4-eGFP and Ta1X4-mRFP1. Both eGFP fluorescence (f) and mRFP1 fluorescence (g) can be observed in a single cell.

(h) Relative fluorescence intensity of hippocampal tissue fragments after electroporation of eGFP-expression plasmids with four different promoter sequences. The tissue fragments were maintained in culture for 4 days, fixed and observed under a confocal microscope. Fluorescence intensities per unit area of the tissue fragments were determined.

(i) 2Relative fluorescence intensity of hippocampal tissue fragments isolated at two different developmental stages and electroporated with b-actin-eGFP. Tissue fragments were maintained for 4 days in culture and subsequently fixed. Fluorescence intensities were measured using a confocal microscope.

 

 

Shigeo Okabe, Department of Cellular Neurobiology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo
*Neuroreport, Volume 15, Issue 6, Pages 971-975, April 29, 2004

PUBLICATIONS

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  • Adult_Mouse_brains

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  • Embryo
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Electroporation-mediated gene transfer system applied to cultured CNS neurons

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Neuroreport . 2004 Apr 29;15(6):971-5.

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Electroporation

Drug Delivery and Transfection

Electro Cell Fusion

Fluorescent Staining

Single-Cell/Micro-Particle Transfer

Cell Freezing

Mechanical Vibration