6533b82afe1ef96bd128b961
RESEARCH PRODUCT
Double-exponential kinetics of binding and redistribution of the fluorescent dyes in cell membranes witness for the existence of lipid microdomains.
Alexander P. DemchenkoSemen O. YesylevskyySemen O. YesylevskyyKyrylo Pyrshevsubject
0301 basic medicineKineticsBiophysicsBiochemistryFlow cytometry03 medical and health sciencesJurkat Cells0302 clinical medicineMembrane MicrodomainsmedicineHumansSpectroscopyMolecular BiologyDynamic equilibriumFluorescent Dyesmedicine.diagnostic_testChemistryLipid microdomainFluorescence recovery after photobleachingCell BiologyFluorescenceLipidsKinetics030104 developmental biologyMembraneSpectrometry Fluorescence030220 oncology & carcinogenesisBiophysicsFluorescence Recovery After PhotobleachingHeLa Cellsdescription
Abstract New technique of detecting lateral heterogeneity of the plasma membrane of living cells by means of membrane-binding fluorescent dyes is proposed. The kinetics of dye incorporation into the membrane or its lateral diffusion inside the membrane is measured and decomposed into exponential components by means of the Maximum Entropy Method. Two distinct exponential components are obtained consistently in all cases for several fluorescent dyes, two different cell lines and in different types of experiments including spectroscopy, flow cytometry and fluorescence recovery after photobleaching. These components are attributed to the liquid-ordered and disordered phases in the plasma membrane of studied cells in their dynamic equilibrium.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-11-17 | Biochemical and biophysical research communications |