Journal: Cell death & disease
Article Title: Oxidized-LDL inhibits testosterone biosynthesis by affecting mitochondrial function and the p38 MAPK/COX-2 signaling pathway in Leydig cells.
doi: 10.1038/s41419-020-02751-z
Figure Lengend Snippet: Fig. 4 oxLDL inhibits mitochondrial function in primary Leydig cells. Cells were treated with various concentrations of oxLDL or 200 μM H2O2 for 24 h, and then the mitochondrial membrane potential (MMP) (a, b) and intracellular ROS (c, d) were assayed by flow cytometry. H2O2 as a positive control. e Activities of mitochondrial complexes I, II, and III (CI, CII, and CIII) were assessed by spectrophotometry. f The expression of respiratory chain proteins, including Ndufs1 (a subunit of CI), SdhB (a subunit of CII), Uqcrfs1 (a subunit of CIII), Fech (a matrix enzyme ferrochelatase), and CytC (an intermembrane space protein cytochrome C), was detected by western blotting. Quantitation of mitochondrial proteins expression was determined by normalization to the internal control GAPDH. g The level of Intracellular ATP were detected. The vehicle with no oxLDL treatment was used as a control. The data are presented as the mean ± standard deviation of at least three independent experiments. *P < 0.05, **P < 0.01, compared with the control.
Article Snippet: Rabbit polyclonal anti-oxidized LDL (cat. no. ab14519), rabbit polyclonal anti-COX-2 (cat. no. ab15191), rabbit monoclonal anti-3β-HSD (cat. no. ab150384), mouse monoclonal anti-phospho-p38 (cat. no. ab45381), rabbit monoclonal anti-p38 (cat. no. ab170099), rabbit monoclonal anti-phospho-JNK (cat. no. ab124956), and rabbit monoclonal anti-JNK (cat. no. ab208035) were purchased from Abcam (Cambridge, MA, USA); rabbit monoclonal anti-phospho-ERK1/2 (cat. no. #4370) and rabbit monoclonal anti-ERK1/2 (cat. no. #4695) were purchased from Cell Signaling Technology (Beverly, MA, USA); rabbit polyclonal anti-STAR (cat. no. 12225-1-AP), rabbit polyclonal anti-p450scc (cat. no. 13363-1-AP), rabbit polyclonal anti-CD36 (cat. no. 18836-1-AP), rabbit polyclonal antiNdufs1 (cat. no. 12444-1-AP), rabbit polyclonal anti-SdhB (cat. no. 10620-1-AP), rabbit polyclonal anti-Uqcrfs1 (cat. no. 18443-1-AP), rabbit polyclonal anti- Fech (cat. no. 14466-1-AP), and rabbit polyclonal anti-CytC(cat. no. 10993-1-AP) were purchased from ProteinTech Group (Chicago, IL, USA); rabbit polyclonal anti-17β-HSD (cat. no. sc-32872) was purchased from Santa Cruz Biotechnology (Eugene, OR, USA); mouse monoclonal GAPDH (cat. no. KC-5G5) was purchased from KangChen Biotech (Shanghai, China); and horseradish peroxidase (HRP)-conjugated goat anti-rabbit IgG (H+ L) secondary antibody and HRP-conjugated goat anti-mouse IgG (H+ L) secondary antibody were purchased from Thermo Fisher Scientific, Inc. (Waltham, MA, USA).
Techniques: Membrane, Cytometry, Positive Control, Spectrophotometry, Expressing, Western Blot, Quantitation Assay, Control, Standard Deviation