Figure 3. A lack of caveolin-1 promotes bioenergetic defects in ROS-treated fibroblasts.

Wild type and caveolin-1 null mouse embryonic fibroblasts (MEFs) were treated with sublethal doses of hydrogen peroxide (150 μM) for 2 hours. Cells were then recovered in complete medium for 7 days. Untreated cells (−H₂O₂) were used as control. Bioenergetic profile was determined using the Seahorse Metabolic Analyzer, which simultaneously measures oxygen consumption rate (OCR) (A) and extracellular acidification rate (ECAR) (B). Viability was assessed by crystal violet staining. OCR and ECAR were normalized to cell number. Values in (A) and (B) represent mean ± SEM; *P<0.001.