An Optimized Calcium-Phosphate Transfection Method for Characterizing Genetically Encoded Tools in Primary Neurons

Area of Science:

• Neuroscience
• Molecular Biology
• Biotechnology

Background:

• Characterizing genetically encoded tools requires expression in target cell types.
• Gene transfer to neuronal cells is challenging, hindering optogenetic tool development.
• Optimizing transfection efficiency is crucial, but maintaining cell health is equally important.

Purpose of the Study:

• To develop an optimized transfection protocol for neuronal cells.
• To ensure transfected neuronal cell health is maintained during the process.
• To establish electrophysiological parameters as a metric for optimizing transfection.

Main Methods:

• Monitoring transfected neuronal cell health using electrophysiological parameters.
• Utilizing electrophysiology to guide the optimization of transfection protocols.
• Evaluating transfection efficiency and cell viability post-protocol.

Main Results:

• An optimized transfection protocol was established for neuronal cells.
• The protocol achieved a transfection efficiency of 10-20%.
• Electrophysiological characterization confirmed no discernible impact on neuronal cell health.

Conclusions:

• Optimized transfection protocols are essential for reliable optogenetic tool characterization.
• Electrophysiology provides a robust method for assessing neuronal health post-transfection.
• This protocol offers a balance of transfection efficiency and cell viability for neuronal research.