Markus Gyger, Daniel Rose, Roland Stange, Tobias Kießling, Mareike Zink, Ben Fabry, and Josef A. Käs
The Microfluidic Optical Stretcher (MOS) has previously been shown to be a versatile tool to measure mechanical properties of single suspended cells. In this study we combine optical stretching and fluorescent calcium imaging. A cell line transfected with a heat sensitive cation channel was used as a model system to show the versatility of the setup. The cells were loaded with the Ca2+ dye Fluo-4 and imaged with confocal laser scanning microscopy while being stretched. During optical stretching heat is transferred to the cell causing a pronounced Ca2+ influx through the cation channel. The technique opens new perspectives for investigating the role of Ca2+ in regulating cell mechanical behavior.
DOI
The Microfluidic Optical Stretcher (MOS) has previously been shown to be a versatile tool to measure mechanical properties of single suspended cells. In this study we combine optical stretching and fluorescent calcium imaging. A cell line transfected with a heat sensitive cation channel was used as a model system to show the versatility of the setup. The cells were loaded with the Ca2+ dye Fluo-4 and imaged with confocal laser scanning microscopy while being stretched. During optical stretching heat is transferred to the cell causing a pronounced Ca2+ influx through the cation channel. The technique opens new perspectives for investigating the role of Ca2+ in regulating cell mechanical behavior.
DOI
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