are there IL4 responsive lines that can be frozen?

Tue May 25 13:18:55 EST 1993

I have bee using the CT4S cell line to assay IL4.  I understand
that the line will not freeze down, and recently we lost the line
to contamination.  Are there any new lines that can be frozen
down or has anyone come up with a protocol to freeze down
the CT4S line?

Steve Holland

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