Abstract
Background
Our aim was to clarify the significance of widely accepted irinotecan (CPT-11)/5-fluorouracil (5-FU) combinations in colon cancer by investigating their sequential effect.
Methods
The sequential effect of CPT-11/5-FU in two colon cancer cell lines, LoVo and SW480, was evaluated by WST-8 colorimetric assay. The cell cycle distributions of each drug were analyzed by flow cytometry, and then the chemoresistant mechanisms and expression of a drug transporter (MDR1), the bcl-2 apoptotic pathway, metabolizing enzymes [carboxylesterase (CE), dihydropyrimidine dehydrogenase], and target enzymes (topoisomerase I, thymidine synthase) associated with sequence-dependent cytotoxicity were examined.
Results
The cytotoxicity of 5-FU (10, 100, 1000 µM) followed by CPT-11 (1 µM) was significantly greater than that of CPT-11 (1 µM) followed by 5-FU (10, 100, 1000 µM) (P < 0.05). Reverse transcription-polymerase chain reaction analysis revealed that exposure to 5-FU downregulated both MDR1 and bcl-2 mRNA and simultaneously upregulated CE2 mRNA expression, suggesting enhancement of subsequent CPT-11 cytotoxicity.
Conclusions
The cytotoxic effects of the CPT-11/5-FU combinations were shown to be schedule-dependent in human colon cancer cells. The findings suggest that 5-FU followed by CPT-11 administration might be the optimal sequence for CPT-11/5-FU treatment of advanced colon cancer.
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References
Y Pommier A Tanizawa KW Kohn (1994) ArticleTitleMechanisms of topoisomerase I inhibition by anticancer drugs Adv Pharmacol 29 73–92 Occurrence Handle10.1016/S1054-3589(08)61132-1
YH Hsiang MG Lihou LF Liu (1989) ArticleTitleArrest of replication forks by drug-stabilized topoisomerase I-DNA cleavable complexes as a mechanism of cell killing by camptothecin Cancer Res 15 5077–82
C Holm JM Covey D Kerrigan Y Pommier (1989) ArticleTitleDifferential requirement of DNA replication for the cytotoxicity of DNA topoisomerase I and II inhibitors in Chinese hamster DC3F cells Cancer Res 15 6365–8
CG Shin RM Snapka (1990) ArticleTitleExposure to camptothecin breaks leading and lagging strand simian virus 40 DNA replication forks Biochem Biophys Res Commun 16 135–40 Occurrence Handle10.1016/0006-291X(90)91684-K
SH Kaufmann (1998) ArticleTitleCell death induced by topoisomerase-targeted drugs: more questions than answers Biochim Biophys Acta 1 195–211
ML Rothenberg JR Eckardt JG Kuhn HA Burris Suffix3rd J Nelson SG Hilsenbeck et al. (1996) ArticleTitlePhase II trial of irinotecan in patients with progressive or rapidly recurrent colorectal cancer J Clin Oncol 14 1128–35 Occurrence Handle8648367 Occurrence Handle1:CAS:528:DyaK28XisFyksbY%3D
HC Pitot DB Wender MJ O'Connell G Schroeder RM Goldberg J Rubin et al. (1997) ArticleTitlePhase II trial of irinotecan in patients with metastatic colorectal carcinoma J Clin Oncol 15 2910–9 Occurrence Handle9256135 Occurrence Handle1:CAS:528:DyaK2sXls1Smurg%3D
M Fukuoka H Niitani A Suzuki M Motomiya K Hasegawa Y Nishiwaki et al. (1992) ArticleTitleA phase II study of CPT-11, a new derivative of camptothecin, for previously untreated non-small-cell lung cancer J Clin Oncol 10 16–20 Occurrence Handle1309380 Occurrence Handle1:STN:280:By2D1M3gsFw%3D
H Bleiberg (1999) ArticleTitleCPT-11 in gastrointestinal cancer Eur J Cancer 35 371–9 Occurrence Handle10448285 Occurrence Handle10.1016/S0959-8049(98)00423-7 Occurrence Handle1:CAS:528:DyaK1MXisVGqsrc%3D
LB Saltz JV Cox C Blanke LS Rosen L Fehrenbacher MJ Moore et al. (2000) ArticleTitleIrinotecan plus fluorouracil and leucovorin for metastatic colorectal cancer. Irinotecan Study Group N Engl J Med 28 905–14 Occurrence Handle10.1056/NEJM200009283431302
JY Douillard D Cunningham AD Roth M Navarro RD James P Karasek et al. (2000) ArticleTitleIrinotecan combined with fluorouracil compared with fluorouracil alone as first-line treatment for metastatic colorectal cancer: a multicentre randomised trial Lancet 25 1041–7 Occurrence Handle10.1016/S0140-6736(00)02034-1
S Mullany PA Svingen SH Kaufmann C Erlichman (1998) ArticleTitleEffect of adding the topoisomerase I poison 7-ethyl-10-hydroxycamptothecin (SN-38) to 5-fluorouracil and folinic acid in HCT-8 cells: elevated dTTP pools and enhanced cytotoxicity Cancer Chemother Pharmacol 42 391–9 Occurrence Handle9771954 Occurrence Handle10.1007/s002800050835 Occurrence Handle1:CAS:528:DyaK1cXmt1Ols7s%3D
YP Tsao P D'Arpa LF Liu (1992) ArticleTitleThe involvement of active DNA synthesis in camptothecin-induced G2 arrest: altered regulation of p34cdc2/cyclin B Cancer Res 1 1823–9
DR Mans I Grivicich GJ Peters G Schwartsmann (1999) ArticleTitleSequence-dependent growth inhibition and DNA damage formation by the irinotecan-5-fluorouracil combination in human colon carcinoma cell lines Eur J Cancer 35 1851–61 Occurrence Handle10674003 Occurrence Handle10.1016/S0959-8049(99)00222-1 Occurrence Handle1:CAS:528:DyaK1MXntVeqsrw%3D
V Pavillard P Formento P Rostagno JL Formento JL Fischel M Francoual et al. (1998) ArticleTitleCombination of irinotecan (CPT11) and 5-fluorouracil with an analysis of cellular determinants of drug activity Biochem Pharmacol 15 1315–22 Occurrence Handle10.1016/S0006-2952(98)00205-6
S Cao YM Rustum (2000) ArticleTitleSynergistic antitumor activity of irinotecan in combination with 5-fluorouracil in rats bearing advanced colorectal cancer: role of drug sequence and dose Cancer Res 15 3717–21
RG Azrak S Cao HK Slocum K Toth FA Durrani MB Yin et al. (2004) ArticleTitleTherapeutic synergy between irinotecan and 5-fluorouracil against human tumor xenografts Clin Cancer Res 1 1121–9 Occurrence Handle10.1158/1078-0432.CCR-0913-3
S Guichard D Cussac I Hennebelle R Bugat P Canal (1997) ArticleTitleSequence-dependent activity of the irinotecan–5FU combination in human colon-cancer model HT-29 in vitro and in vivo Int J Cancer 73 729–34 Occurrence Handle9398054 Occurrence Handle10.1002/(SICI)1097-0215(19971127)73:5<729::AID-IJC20>3.0.CO;2-# Occurrence Handle1:CAS:528:DyaK2sXns1Kkuro%3D
S Guichard I Hennebelle R Bugat P Canal (1998) ArticleTitleCellular interactions of 5-fluorouracil and the camptothecin analogue CPT-11 (irinotecan) in a human colorectal carcinoma cell line Biochem Pharmacol 1 667–76 Occurrence Handle10.1016/S0006-2952(97)00541-8
M Kusunoki H Yanagi H Kotera M Noda T Yamamura (1998) ArticleTitleEffects of pharmacokinetic modulating chemotherapy using oral UFT and continuous venous 5FU infusion on the prognosis of irradiated rectal carcinomas with p53 overexpression Int J Oncol 13 653–7 Occurrence Handle9735391 Occurrence Handle1:CAS:528:DyaK1cXmsVCltbk%3D
M Kusunoki H Yanagi M Noda T Yamamura (1998) ArticleTitleThe usefulness of pharmacokinetic modulating chemotherapy (UFT plus 5FU) in the treatment of unresectable colorectal carcinomas Oncol Rep 6 547–52
M Kusunoki H Yanagi M Noda R Yoshikawa T Yamamura (2000) ArticleTitleResults of pharmacokinetic modulating chemotherapy in combination with hepatic arterial 5-fluorouracil infusion and oral UFT after resection of hepatic colorectal metastases Cancer 15 1228–35 Occurrence Handle10.1002/1097-0142(20000915)89:6<1228::AID-CNCR6>3.0.CO;2-O
R Yoshikawa M Kusunoki H Yanagi M Noda JI Furuyama T Yamamura et al. (2001) ArticleTitleDual antitumor effects of 5-fluorouracil on the cell cycle in colorectal carcinoma cells: a novel target mechanism concept for pharmacokinetic modulating chemotherapy Cancer Res 1 1029–37
Y Inoue C Miki J Hiro E Ojima K Yamakado K Takeda et al. (2005) ArticleTitleImproved survival using multi-modality therapy in patients with lung metastases from colorectal cancer: a preliminary study Oncol Rep 14 1571–6 Occurrence Handle16273258
R Humerickhouse K Lohrbach L Li WF Bosron ME Dolan (2000) ArticleTitleCharacterization of CPT-11 hydrolysis by human liver carboxylesterase isoforms hCE-1 and hCE-2 Cancer Res 1 1189–92
G Xu W Zhang MK Ma HL McLeod (2002) ArticleTitleHuman carboxylesterase 2 is commonly expressed in tumor tissue and is correlated with activation of irinotecan Clin Cancer Res 8 2605–11 Occurrence Handle12171891 Occurrence Handle1:CAS:528:DC%2BD38XmvVahsL0%3D
SB Liggett (2001) ArticleTitlePharmacogenetic applications of the Human Genome Project Nat Med 7 281–3 Occurrence Handle11231618 Occurrence Handle10.1038/85411 Occurrence Handle1:CAS:528:DC%2BD3MXhvVOlu7s%3D
LB Saltz J Kanowitz NE Kemeny L Schaaf D Spriggs BA Staton et al. (1996) ArticleTitlePhase I clinical and pharmacokinetic study of irinotecan, fluorouracil, and leucovorin in patients with advanced solid tumors J Clin Oncol 14 2959–67 Occurrence Handle8918493 Occurrence Handle1:CAS:528:DyaK2sXhtFan
A Falcone A Di Paolo G Masi G Allegrini R Danesi M Lencioni et al. (2001) ArticleTitleSequence effect of irinotecan and fluorouracil treatment on pharmacokinetics and toxicity in chemotherapy-naive metastatic colorectal cancer patients J Clin Oncol 19 3456–62 Occurrence Handle11481350 Occurrence Handle1:CAS:528:DC%2BD3MXmtlGhurs%3D
RH Mathijssen S Marsh MO Karlsson R Xie SD Baker J Verweij et al. (2003) ArticleTitleIrinotecan pathway genotype analysis to predict pharmacokinetics Clin Cancer Res 15 3246–53
ER Fearon B Vogelstein (1990) ArticleTitleA genetic model for colorectal tumorigenesis Cell 1 759–67 Occurrence Handle10.1016/0092-8674(90)90186-I
Y Tsujimoto N Ikegaki CM Croce (1987) ArticleTitleCharacterization of the protein product of bcl-2, the gene involved in human follicular lymphoma Oncogene 2 3–7 Occurrence Handle3325884 Occurrence Handle1:CAS:528:DyaL1cXptVSrsQ%3D%3D
JC Reed (1994) ArticleTitleBcl-2 and the regulation of programmed cell death J Cell Biol 124 1–6 Occurrence Handle8294493 Occurrence Handle10.1083/jcb.124.1.1 Occurrence Handle1:CAS:528:DyaK2cXntl2mtA%3D%3D
T Ohmori ER Podack K Nishio M Takahashi Y Miyahara Y Takeda et al. (1993) ArticleTitleApoptosis of lung cancer cells caused by some anti-cancer agents (MMC, CPT-11, ADM) is inhibited by bcl-2 Biochem Biophys Res Commun 15 30–6 Occurrence Handle10.1006/bbrc.1993.1377
MI Walton D Whysong PM O'Connor D Hockenbery SJ Korsmeyer KW Kohn (1993) ArticleTitleConstitutive expression of human Bcl-2 modulates nitrogen mustard and camptothecin induced apoptosis Cancer Res 15 1853–61
F Di Nicolantonio SJ Mercer LA Knight FG Gabriel PA Whitehouse S Sharma et al. (2005) ArticleTitleCancer cell adaptation to chemotherapy BMC Cancer 18 78 Occurrence Handle10.1186/1471-2407-5-78 Occurrence Handle1:CAS:528:DC%2BD2MXpsFGqsrw%3D
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Inoue, Y., Miki, C., Watanabe, H. et al. Schedule-dependent cytotoxicity of 5-fluorouracil and irinotecan in a colon cancer cell line. J Gastroenterol 41, 1149–1157 (2006). https://doi.org/10.1007/s00535-006-1904-0
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DOI: https://doi.org/10.1007/s00535-006-1904-0