05) calculated by Fisher’s exact test and also by a ratio of the number of molecules from the experimental data set that Torin 2 maps to the pathway, divided by the total number of molecules that exists in that canonical pathway. Immunofluorescence microscopy Non-adherent THP-1 cells (CAM and mock treated) were analyzed by indirect immunofluorescent antibody (IFA) microscopy. Briefly, 1 × 105 cells were cytocentrifuged onto poly-L-lysine coated slides for 2 minutes at 1000 rpm using a Shandon Cytospin® 4 Cytocentrifuge (Thermo Scientific) [31]. The cytospun THP-1 cells were air dried and immediately fixed using ice cold acetone for 30 seconds. The fixed preparations were then washed with PBS and
stained with a rabbit antibody against whole killed C. burnetii NMII (primary antibody) followed by a goat anti-rabbit IgG Alexa Fluor-488 (Molecular Probes, Eugene, OR) secondary selleck antibody. Host and bacterial DNA were also stained using 4′,6-diamidino-2-phenylindole (DAPI). Microscopy was conducted using a Nikon Eclipse TE 2000-S microscope
with a Nikon DS FI1 camera and NIS-ELEMENTS F 3.00 software. IMAGEJ version 1.42n (Wayne Rasband, NIH) was also used for image processing [20]. RT-qPCR analysis RT-qPCR was performed using gene-specific primers (shown in Additional file 1-Table S1.I), and the SYBR Green Master Mix Kit (Applied Biosystems) on an Eppendorf Mastercycler ® ep realplex (Eppendorf, Hamberg, Germany) following the manufacturer’s recommendations.
Briefly, first strand cDNA was synthesized using Eltanexor random hexamers, 1 μg of total RNA, and the SuperScript III First-Strand Synthesis System for RT-PCR (Invitrogen) as suggested by the manufacturer. Oligonucleotide primers were designed using Primer3Plus [32, 33]. The primer efficiency of each primer set was determined to be within the efficiency window for the 2-ΔΔCT relative fold calculation method [34]. The human β-actin gene was used as the reference gene. Paired T-Test was performed to identify statistical differences between any Ergoloid two conditions. Differences were considered significant at a P < 0.05. Results SPV morphology within CAM treated C. burnetii infected THP-1 cells As the transient inhibition of C. burnetii protein synthesis within infected THP-1 cells using CAM is pivotal to testing our hypothesis, we sought to confirm that morphological changes occur to the PV of infected THP-1 cells after transient CAM treatment in a manner consistent with that observed in other cell types [35]. Using phase contrast and IFA microscopy analysis, we assessed the effect of bacteriostatic levels of CAM (10 μg/ml) on infected THP-1 cells during the log growth phase of the C. burnetii infectious cycle in order to coincide with subsequent microarray analysis. Robust infections (≥90% infected cells) were produced using C. burnetii NMII at a genome equivalent MOI of 15. Infections were either mock or CAM treated at 48 hours post infection (hpi), and then compared at 72 hpi.