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  • Title: In vivo cisplatin resistance of rat ascites hepatoma AH66.
    Author: Minamino T, Nomura M, Tamai M, Moritani S, Ohshima T, Miyamoto K.
    Journal: Cancer Lett; 1996 Nov 29; 108(2):153-6. PubMed ID: 8973588.
    Abstract:
    The rat ascites hepatoma AH66 cell line had higher resistance to cisplatin than a variant AH66F cell line in in vivo experiments, though in vitro sensitivities to cisplatin of both cell lines were similar in a medium containing 5% fetal calf serum (FCS). When AH cells were cultured in the medium containing 5% ascites fluid (ASF), the sensitivity of AH66 cells to cisplatin was significantly lower than that in the medium containing 5% FCS, but the sensitivity of AH66F cells was almost same in the case of 5% FCS. The metallothionein (MT) contents in AH66 cells, but not in AH66F cells, increased with the incubation time in the medium containing ASF. MT in AH66 cells was also induced by treatment with zinc ion, but the induction in AH66F cells was very low. These results indicate that AH66 cells have a high ability to induce MT and thereby may acquire in vivo resistance to cisplatin.
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