Effects of tunicamycin on the retention of vincristine in drug-resistant UWOV2 human ovarian carcinoma cells at different time intervals after a 1-hr pre-loading period with the drug and subsequent exposure to drug-free medium. Values are means ± SEM (n = 4). Student's two-tailed p values for the difference between control and TM-treated cells are presented within bars.
Hiss et al. Cancer Cell International 2007 7:5 doi:10.1186/1475-2867-7-5