Hello,
I just started working with human aortic smooth muscle cells (HASMC) for the first time and experienced contamination problems. I purchased Lonza's human smooth muscle cell systems with their media and the cells arrived to be in P3, from a 21 year old donor, and packaged in August, 2014. Is it normal for such cells to be well in its passages when they arrive? I received cells in P0/1 most of the time so this was new for me. Also, is this cell line usually tricky/sensitive to work with? Any tips on culturing these cells would be great!