Figure 2: Temporal effects of luteinizing hormone (LH) or forskolin on phosphorylation of Dynamin-related protein-1 (DRP1).
Small bovine luteal cells were treated with LH (10 ng/mL) or forskolin (10 μM) for 0, 0.5, 1, 4, 6, or 24 h. Protein was extracted and subject to western blotting. Progesterone in the culture medium was measured by ELISA. Panel A: Representative western blot analysis on phosphorylation of DRP1 in small luteal cells. Panel B: Fold increase in progesterone following treatment with LH. *Significantly different from control, P < 0.05. Panel C: Densitometric analyses of phospho-DRP1 (Ser637). Panel D: Densitometric analyses of phospho-DRP1 (Ser616). Panel E: Densitometric analyses of phospho-DRP1 (Ser637). Panel F: Densitometric analyses of phospho-DRP1 (Ser616). Panels C-F: Bars represent mean fold changes (means ± sem, n = 3). Open bars: Control 0-h. Closed bars: LH or forskolin-treated cells. Bars with different lettersabcd differ significantly within treatment (P < 0.05).