To anyone who can help me:
I am a graduate student at the Ohio State University in the Molecular Genetics
department. I have had this problem before and have just come up against it
again today. If anyone could help me it would be greatly appreciated.
When I grow my U937 cells in RPMI with 10% FBS in flasks the grow exceptionally
well and expand quickly. They all look healthy and the culture is uniform.
However, when I then transfer them to spinner flasks, their growth slows almost
to a stand-still and the culture does not look as uniform as it had.
I gas the flasks when I transfer the cells. The cultures are not contaminated.
I don't know what causes this. If anyone could help, please either e-mail me
at lritter at magnus.ohio-state.edu or post a reply to this usernet.
Thank you for your help.