Effect of photodynamic therapy in combination with mitomycin C on a mitomycin-resistant bladder cancer cell line

被引:31
作者
Datta, SN [1 ]
Allman, R [1 ]
Loh, C [1 ]
Mason, M [1 ]
Matthews, PN [1 ]
机构
[1] VELINDRE HOSP, CTR CANC RES, CARDIFF CF4 7XL, S GLAM, WALES
关键词
photochemotherapy; 5-aminolaevulinic acid; neoplasm; bladder; mitomycin C; drug resistance;
D O I
10.1038/bjc.1997.384
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Photodynamic therapy is a method for treating cancer using drugs activated by light. A new compound, 5-aminolaevulinic acid (ALA), is a precursor of the active photosensitizer protoporphyrin IX (PpIX) and has fewer side-effects and much more transient phototoxicity than previous photosensitizers. Cell survival of ALA-mediated photodynamic therapy was measured in the J82 bladder cancer cell line, along with its mitomycin C-resistant counterpart J82/MMC. This demonstrated that mitomycin resistance is not cross-resistant to photodynamic therapy. There was also a suggestion that the mitomycin-resistant cells were more susceptible to photodynamic therapy than the parent cell line. Photodynamic therapy appeared to enhance the effect of mitomycin C, when mitomycin C was given first. This phenomenon was apparent for both drug-resistant and drug-sensitive cell lines. This suggests a possible role for combined mitomycin C and photodynamic therapy in superficial bladder tumours that have recurred despite intravesical cytotoxic drug treatment.
引用
收藏
页码:312 / 317
页数:6
相关论文
共 34 条
[31]  
SOMMERVILLE JJF, 1985, BR J UROL, V57, P586
[32]  
STAR WM, 1986, CANCER RES, V46, P2532
[33]   EFFECT OF INTRAVESICAL MITOMYCIN-C ON RECURRENCE OF NEWLY DIAGNOSED SUPERFICIAL BLADDER-CANCER - INTERIM-REPORT FROM THE MEDICAL-RESEARCH COUNCIL SUBGROUP ON SUPERFICIAL BLADDER-CANCER (UROLOGICAL CANCER WORKING PARTY) [J].
TOLLEY, DA ;
HARGREAVE, TB ;
SMITH, PH ;
WILLIAMS, JL ;
GRIGOR, KM ;
PARMAR, MKB ;
FREEDMAN, LS ;
USCINSKA, BM .
BRITISH MEDICAL JOURNAL, 1988, 296 (6639) :1759-1761
[34]   CHARACTERIZATION OF A HUMAN BLADDER-CANCER CELL-LINE SELECTED FOR RESISTANCE TO MITOMYCIN-C [J].
XU, BH ;
GUPTA, V ;
SINGH, SV .
INTERNATIONAL JOURNAL OF CANCER, 1994, 58 (05) :686-692