Getting cells off plates

John Fox at
Thu Mar 28 03:23:03 EST 1996

In article <4jd2q6$he9 at>, ez022056 at (Edward Wang) says:
>Pearse Ward (ward0101 at wrote:
>You could try using a cell scraper or by using moderate force bang 
the culture vessel against the palm of your hand, after temporarily 
transferring the majority of the medium into a sterile container. 
I find these methods work for the myeloma cells that I am culturing.

>: I'm having a problem getting COS-7 cells to dissociate from plastic 
>: tissue culture plates.
>: I am doing expression cloning and selecting transfectants by FACS. The 
>: antigen I am detecting is very sensitive to trypsin, so that is not an 
>: option.
>: I have tried Versene, and PIPES/NaCl/EDTA, and both work to a degree 
>: with incubation times of 15-30 minutes, but neither one removes all of 
>: the cells from the plastic.
>: I'd be interested in other people's favourite recipies for non-enzymatic 
>: dissociation of cells.
>: Many thanks,
>: Pearse
>Couldn't you just scrape it with a cell scraper?  Fisher sells them for 
>dirt cheap, and that's what I've always used to take cells off plates 
>(trypsin usually makes a mess...
>Edward H. Wang                 *
>Staff Resch. Assc.             *
>Dept. Internal Med. -Nephrology*
>UC Davis                       *

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