Drawer9parade: Створена сторінка: PPHN FPASMC were cotransfected with 4 ��g of plasmid DNA and 0.1 ��g pRL-CMV Vector (Promega) on a 10-cm2 tissue culture plate at 90% confluence, using...

2017-01-03T07:40:54Z

Створена сторінка: PPHN FPASMC were cotransfected with 4 ��g of plasmid DNA and 0.1 ��g pRL-CMV Vector (Promega) on a 10-cm2 tissue culture plate at 90% confluence, using...

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PPHN FPASMC were cotransfected with 4 ��g of plasmid DNA and 0.1 ��g pRL-CMV Vector (Promega) on a 10-cm2 tissue culture plate at 90% confluence, using lipofectamine (Gibco) according to the manufacturer��s instructions. After 24 hours, cells were split onto 6-well plates and allowed to adhere. Luciferase activity in protein extracts was determined 72 hours after transfection using the Dual-Luciferase Reporter Assay System (Promega) and a Femtomaster FB12 [http://en.wikipedia.org/wiki/MCF2L MCF2L] luminometer (Zylux). Activity was normalized to the internal renilla luciferase control to correct for differences in transfection efficiencies. PPHN FPASMCs were treated in incubators with 21% O2�C5% CO2 or 95% O2�C5% CO2 with or without 100 nM hydrocortisone (Sigma) for 24 hours before luciferase assays. Western blot analysis After treatment, PPHN FPASMCs were harvested for total protein (40 ��g). Protein concentration was measured using the Bradford assay. PDE5 and NF��B inhibitory protein (I��B) expression were assessed via Western blot, which was performed as previously described.13 Membranes were blocked for 1 hour at room temperature with 5% nonfat dry milk in Tris-buffered saline containing 0.1% Tween 20 (1X TBST) and incubated overnight at 4��C with primary antibody in 5% milk plus 1X TBST at an appropriate dilution (1:500 for mouse anti-PDE5 [BD Transduction], 1500 for goat anti-I��B [Santa Cruz Biotechnology], 11,000 for rabbit anti-Nox1 [http://www.selleckchem.com/products/Erlotinib-Hydrochloride.html find more] [Santa Cruz Biotechnology], 11000 for rabbit anti-Nox4 [Santa Cruz Biotechnology], 11,000 [http://www.selleckchem.com/products/AP24534.html see more] for rabbit anti-extracellular superoxide dismutase [ecSOD; Enzo Life Sciences], and 12,000 for mouse ��-actin [Sigma]). The membranes were washed and incubated with the appropriate secondary antibody diluted 11,000 in 5% milk plus 1X TBST. Membranes were then washed and exposed via chemiluminescence (Pierce). Bands were analyzed using a Digital Science Image Station (Kodak). Expression was normalized to ��-actin. Data are shown as fold relative to 21% untreated FPASMC. Statistical analysis All data are expressed as the mean �� SEM. Results were analyzed by one-way analysis of variance with Bonferroni multiple comparison test where appropriate, using Prism software (GraphPad). Statistical significance was set at P

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Drawer9parade: Створена сторінка: PPHN FPASMC were cotransfected with 4 ��g of plasmid DNA and 0.1 ��g pRL-CMV Vector (Promega) on a 10-cm2 tissue culture plate at 90% confluence, using...