Time-Dependent Changes in Drug Sensitivity Expressed by Mammalian Cells After Exposure to Trypsin2
- 1 April 1980
- journal article
- research article
- Published by Oxford University Press (OUP) in JNCI Journal of the National Cancer Institute
- Vol. 64 (4) , 913-916
- https://doi.org/10.1093/jnci/64.4.913
Abstract
Immediately after a 5-minute exposure to 0.025% trypsin, Chinese hamster ovary cells treated with anticancer drugs exhibited changes in drug sensitivity. Depending on the drug, cells immediately became more sensitive, less sensitive, or showed no change in sensitivity at all. The deviation from normally expected survival values ranged from fourfold to fifty-fold and varied with time (of drug treatment) after trypsinizatlon. By the 12th hour post trypsinization, the drug survival responses had returned to values obtained with untrypsinized cells.Keywords
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