Open AccessReversal of Cisplatin Resistance with Amphotericin B in a Non‐small Cell Lung Cancer Cell Line
Author(s) -
Morikage Toshihiko,
Bungo Masami,
Inomata Motoko,
Yoshida Mitsuji,
Ohmori Tohru,
Fujiwara Yasuhiro,
Nishio Kazuto,
Saijo Nagahiro
Publication year - 1991
Publication title -
japanese journal of cancer research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.035
H-Index - 141
eISSN - 1349-7006
pISSN - 0910-5050
DOI - 10.1111/j.1349-7006.1991.tb01912.x
Subject(s) - cisplatin , cytotoxicity , cell culture , multiple drug resistance , pharmacology , chemotherapy , drug resistance , cell , amphotericin b , chemistry , cancer research , biology , medicine , in vitro , biochemistry , microbiology and biotechnology , antifungal , genetics
The potentiation of anticancer agents by non‐anticancer drugs is one of the possible strategies for overcoming cellular resistance to chemotherapy. In order to overcome cis ‐diamminedichloroplatinum‐(II) (CDDP) resistance, we evaluated the sensitizing effect on CDDP‐induced cytotoxicity of various non‐anticancer agents which might alter membrane transport, by means of a colorimetric [3‐(4,5‐dimethylthiazol‐2‐yl)‐2,5‐diphenyItetrazolium bromide] (MTT) assay. Drugs which have previously been demonstrated to modify multidrug resistance did not show a sensitizing effect to cisplatin. Only amphotericin B (AmB) selectively conquered CDDP resistance in the CDDP‐resistant cell line. A drug accumulation study done by the atomic absorption method demonstrated that the accumulation of CDDP in the resistant cell line recovered to the level of the parental cell line after treatment with AmB. Thus, AmB might overcome CDDP resistance by increasing the accumulation of CDDP.