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Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Cell+Biochem+Biophys 2014 ; 70 (2): 785-94 Nephropedia Template TP
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Laurdan monitors different lipids content in eukaryotic membrane during embryonic neural development #MMPMID24839062
Cell Biochem Biophys 2014[Nov]; 70 (2): 785-94 PMID24839062show ga
We describe a method based on fluorescence lifetime imaging microscopy (FLIM) to assess the fluidity of various membranes in neuronal cells at different stage of development (day 12 (E12) and day 16 (E16) of gestation). For the FLIM measurements, we use the Laurdan probe which is commonly used to asses membrane water penetration in model and in biological membranes using spectral information. Using the FLIM approach we build a fluidity scale based on calibration with model systems of different lipid composition. In neuronal cells we found a marked difference in fluidity between the internal membranes and the plasma membrane, being the plasma membrane the less fluid. However, we found no significant differences between the two cells groups, E12 and E16. Comparison with NIH3T3 cells show that the plasma membranes of E12 and E16 cells are significantly more fluid than the plasma membrane of the cancer cells.