Activation of the Mammalian Cells by Using Light-Sensitive Ion Channels
Australian School of Advanced Medicine, Macquarie University, North Ryde, NSW, Australia.Methods in molecular biology (Clifton, N.J.) (Impact Factor: 1.29). 01/2012; 875:241-51. DOI: 10.1007/978-1-61779-806-1_12
With advances in molecular biology and gene cloning techniques, it is now possible to selectively stimulate living cells of interest by using an external light source. This is done by transfecting the cells of interest with a plasmid carrying the channelrhodopsin (ChR2) gene. By stimulating these transfected cells with laser, the light-sensitive ion channels ChR2 are opened, followed by an influx of cation resulting in cell activation. This combination of optical and genetic technique is known in the literature as optogenetics. It is particularly useful in the functional studies of excitable cells, such as neurons, muscle and endocrine cells, to mimic the stimulation from action potentials to trigger the release neurotransmitters and hormones. Here, we describe the methods needed to make selected mammalian cells (PC12) respond to light excitation.
Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.