Protein extraction and Western blotting were performed as previously described (31 (link)). Primary antibodies were diluted to 1:100 for CAV1 (Santa Cruz Biotechnology), 1:500 for COL1A2 (Novus Biologicals), 1:200 for THBS2 (Santa Cruz Biotechnology), and 1:5000 for beta actin (Sigma Aldrich). Anti-mouse (beta actin), anti-goat (THBS2), and anti-rabbit (CAV1, COL1A2) secondary antibodies were used at a concentration of 1:300 (Santa Cruz Biotechnology). Proteins were visualized by xerography on XOMAT™ AR film using an enhanced chemiluminescence system. Xerograms were digitized with an Epson flat-bed scanner and ImageJ software was used to quantify expression. A Student’s T-test was used to compare protein expression between treatment groups.