Journal: International Journal of Molecular Sciences
Article Title: Cadmium Disrupted ER Ca 2+ Homeostasis by Inhibiting SERCA2 Expression and Activity to Induce Apoptosis in Renal Proximal Tubular Cells
doi: 10.3390/ijms24065979
Figure Lengend Snippet: Effects of Cd 2+ on SERCA2 stability in mRTEC cells. ( A , B ) After being treated with Cd 2+ (0–10 μM) for 24 h or treated with Cd 2+ (5 μM) or Cd (5 μM) + R-467 (1 μM) for 24 h, mRTEC cells were collected for RNA extraction, and the SERCA2 mRNA levels detected by RT-PCR. ( C ) Effects of MG132 and CQ on Cd 2+ -induced degradation of SERCA2. The mRTEC cells were pretreated with CQ (20 μM) for 1 h, followed by treatment with Cd 2+ (5 μM) for 24 h, or Cd 2+ (5 μM) for 18 h + MG132 (10 μM) for 6 h, and then the proteins were extracted for Western blotting analysis. ( E ) Effects of Cd 2+ on half-life of SERCA2 protein. Cells were treated with Cycloheximide (CHX) (10 μg/mL) for 3 and 6 h or pretreated with Cd 2+ (5 μM) for 24 h, and the protein was extracted for Western blotting analysis. ( D , F ) Quantification of the relative protein levels of SERCA2 was performed using the software Image J 1.54c. * indicates statistical significance between control and Cd 2+ treatment or between treatments. NS: no significant difference. ( n = 4 well cells/group) p < 0.05, using one-way ANOVA followed by Duncan’s multiple range test ( A , B , D ) and Student’s t -test ( F ).
Article Snippet: The staining procedure involved incubation of the cells or tissue sections with 3% normal goat serum in PBST to reduce non-specific staining, followed by overnight incubation at 4 °C with rabbit polyclonal antibodies against SERCA2 (1:50, Cell Signaling Technology, Shanghai, China), p-PLB (1:50, Abcam, Shanghai, China) KIM-1 (1:200, Thermo Fisher Scientific, Shanghai, China) antibodies.
Techniques: RNA Extraction, Reverse Transcription Polymerase Chain Reaction, Western Blot, Software, Control