293 (kidney; transformed with adenovirus 5 DNA)
Human 293 cells were cultured in Minimum Essential Medium (Eagle) with 2 mM L-glutamine and harvested at the log phase of growth. The 293 cells were fixed in 4% paraformaldehyde and arrayed on a 12-well (5 mm) adhesive coated slide, with each wellis surface specifically treated to enhance cellular attachment and to minimize background staining. Each well was loaded with approximately 7.5 x 103 293 cells. A follow-up heat dehydration process was done to ensure the attachment of 293 cells and the stability of cellular proteins.