Upto what passage number do BNL 1ME A.7R.1 cells show normal behavior and normal characteristics to be used for cell viability assay?

I am trying to run MTT assays on a passage number 70 for the cell line and I do not see the same results as I used to see at a lower passage number for the same cell line? some insights would be...

12 December 2015 5,710 2 View