Skip to main content
Top
Published in: Cancer Chemotherapy and Pharmacology 5/2004

01-05-2004 | Original Article

Gene expression of 5-fluorouracil metabolic enzymes in primary colorectal cancer and corresponding liver metastasis

Authors: Mikito Inokuchi, Hiroyuki Uetake, Yoshinori Shirota, Hiroyuki Yamada, Masayuki Tajima, Kenichi Sugihara

Published in: Cancer Chemotherapy and Pharmacology | Issue 5/2004

Login to get access

Abstract

Purpose

Expression of thymidylate synthase (TS) and the 5-fluorouracil (5-FU) metabolic enzymes, including dihydropyrimidine dehydrogenase (DPD), orotate phosphoribosyl transferase (OPRT), thymidine phosphorylase (TP), and uridine phosphorylase (UP), has been reported to be associated with the sensitivity to 5-FU-based chemotherapy in colorectal cancer. We evaluated the correlation of the expression of these genes between primary tumors and corresponding liver metastases.

Method

The mRNA levels of TS, DPD, OPRT, TP, and UP were measured by real-time quantitative RT-PCR in samples from 23 consecutive patients with both primary colorectal adenocarcinoma and liver metastasis.

Results

The DPD, OPRT, TP, and UP mRNA levels were significantly higher in liver metastases than in primary tumor (expression in relation to that of β-actin mRNA: 0.42 vs 0.16, P=0.00053; 1.4 vs 0.92, P=0.016; 23 vs 11, P=0.00014; 0.36 vs 0.25, P=0.0026; respectively). However, the TS mRNA level did not differ significantly between liver metastases than primary tumor (0.20 vs 0.16, P=0.28). No correlation was observed for any gene between primary tumor and liver metastases. In both primary tumor and liver metastasis, the TS mRNA levels correlated significantly with the OPRT mRNA level (primary r S=0.83, P=0.00000081; liver metastasis r S=0.49, P=0.017), while the DPD mRNA level correlated significantly with the TP mRNA level r S=0.81, P=0.0000024; r S=0.63, P=0.0014; respectively).

Conclusions

The differential gene expression of 5-FU metabolic enzymes between primary colorectal cancer and corresponding liver metastases should be taken into consideration when estimating the sensitivity to 5-FU-based chemotherapy in colorectal cancer. The gene expression of TS and OPRT, which are involved in de novo pyrimidine synthesis, and that of DPD and TP, may be coregulated.
Literature
1.
go back to reference Allegra CJ, Parr AL, Wold LE, Mahoney MR, Sargent DJ, Johnston P, Klein P, Behan K, O’Connell MJ, Levitt R, Kugler JW, Tirona MT, Goldberg RM (2002) Investigation of the prognostic and predictive value of thymidylate synthase, p53, and Ki-67 in patients with locally advanced colon cancer. J Clin Oncol 20:1735CrossRefPubMed Allegra CJ, Parr AL, Wold LE, Mahoney MR, Sargent DJ, Johnston P, Klein P, Behan K, O’Connell MJ, Levitt R, Kugler JW, Tirona MT, Goldberg RM (2002) Investigation of the prognostic and predictive value of thymidylate synthase, p53, and Ki-67 in patients with locally advanced colon cancer. J Clin Oncol 20:1735CrossRefPubMed
2.
go back to reference Aschele C, Debernardis D, Casazza S, Antonelli G, Tunesi G, Baldo C, Lionetto R, Maley F, Sobrero A (1999) Immunohistochemical quantitation of thymidylate synthase expression in colorectal cancer metastases predicts for clinical outcome to fluorouracil-based chemotherapy. J Clin Oncol 17:1760PubMed Aschele C, Debernardis D, Casazza S, Antonelli G, Tunesi G, Baldo C, Lionetto R, Maley F, Sobrero A (1999) Immunohistochemical quantitation of thymidylate synthase expression in colorectal cancer metastases predicts for clinical outcome to fluorouracil-based chemotherapy. J Clin Oncol 17:1760PubMed
3.
go back to reference Beck A, Etienne MC, Chéradame S, Fischel JL, Formento P, Renée N, Milano G (1994) A role for dihydropyrimidine dehydrogenase and thymidylate synthase in tumor sensitivity to fluorouracil. Eur J Cancer 30A:1517PubMed Beck A, Etienne MC, Chéradame S, Fischel JL, Formento P, Renée N, Milano G (1994) A role for dihydropyrimidine dehydrogenase and thymidylate synthase in tumor sensitivity to fluorouracil. Eur J Cancer 30A:1517PubMed
4.
go back to reference Bièche I, Laurendeau I, Tozlu S, Olivi M, Vidaud D, Lidereau R, Vidaud M (1999) Quantitation of MYC gene expression in sporadic breast tumors with a real-time reverse transcription-PCR assay. Cancer Res 59:2759PubMed Bièche I, Laurendeau I, Tozlu S, Olivi M, Vidaud D, Lidereau R, Vidaud M (1999) Quantitation of MYC gene expression in sporadic breast tumors with a real-time reverse transcription-PCR assay. Cancer Res 59:2759PubMed
5.
go back to reference Cascinu S, Aschele C, Barni S, Dabernardis D, Baldo C, Tunesi G, Catalano V, Staccioli MP, Brenna A, Muretto P, Catalano G (1999) Thymidylate synthase protein expression in advanced colorectal cancer: correlation with the site of metastasis and the clinical response to leucovorin-modulated bolus 5-fluorouracil. Clin Cancer Res 5:1996PubMed Cascinu S, Aschele C, Barni S, Dabernardis D, Baldo C, Tunesi G, Catalano V, Staccioli MP, Brenna A, Muretto P, Catalano G (1999) Thymidylate synthase protein expression in advanced colorectal cancer: correlation with the site of metastasis and the clinical response to leucovorin-modulated bolus 5-fluorouracil. Clin Cancer Res 5:1996PubMed
6.
go back to reference Chung YM, Park SH, Park JK, Kim YT, Kang YK, Yoo YD (2000) Establishment and characterization of 5-fluorouracil-resistent gastric cancer cells. Cancer Lett 159:95CrossRefPubMed Chung YM, Park SH, Park JK, Kim YT, Kang YK, Yoo YD (2000) Establishment and characterization of 5-fluorouracil-resistent gastric cancer cells. Cancer Lett 159:95CrossRefPubMed
7.
go back to reference Collie-Duguid ESR, Johmston SJ, Boyce L, Smith N, Cowieson A, Cassidy J, Murray GI, Mcleod H (2001) Thymidine phosphorylase and dihydropyrimidine dehydrogenase protein expression in colorectal cancer. Int J Cancer 94:297CrossRefPubMed Collie-Duguid ESR, Johmston SJ, Boyce L, Smith N, Cowieson A, Cassidy J, Murray GI, Mcleod H (2001) Thymidine phosphorylase and dihydropyrimidine dehydrogenase protein expression in colorectal cancer. Int J Cancer 94:297CrossRefPubMed
8.
go back to reference Cuq P, Rouquet C, Evrard V, Ciccolini J, Vian L, Cano JP (2001) Fluoropyrimidine sensitivity of human MCF-7 breast cancer cells stably transfected with human uridine phosphorylase. Br J Cancer 84:1677CrossRefPubMed Cuq P, Rouquet C, Evrard V, Ciccolini J, Vian L, Cano JP (2001) Fluoropyrimidine sensitivity of human MCF-7 breast cancer cells stably transfected with human uridine phosphorylase. Br J Cancer 84:1677CrossRefPubMed
9.
go back to reference Davies MM, Johnston PG, Kaur S, Allen-Mersh TG (1999) Colorectal liver metastasis thymidylate synthase staining correlates with response to hepatic arterial floxuridine. Clin Cancer Res 5:325PubMed Davies MM, Johnston PG, Kaur S, Allen-Mersh TG (1999) Colorectal liver metastasis thymidylate synthase staining correlates with response to hepatic arterial floxuridine. Clin Cancer Res 5:325PubMed
10.
go back to reference Edler D, Glimelius B, Hallstörm M, Jakobsen A, Johnston PG, Magnusson I, Ragnhammar P, Blomgren H (2002) Thymidylate synthase expression in colorectal cancer: a prognostic and predictive marker of benefit from adjuvant fluorouracil-based chemotherapy. J Clin Oncol 20:1721CrossRefPubMed Edler D, Glimelius B, Hallstörm M, Jakobsen A, Johnston PG, Magnusson I, Ragnhammar P, Blomgren H (2002) Thymidylate synthase expression in colorectal cancer: a prognostic and predictive marker of benefit from adjuvant fluorouracil-based chemotherapy. J Clin Oncol 20:1721CrossRefPubMed
11.
go back to reference Etienne MC, Cheradame S, Fischel JL, Formento P, Dassonville O, Renee N, Schneider M, Thyss A, Demard F, Milano G (1995) Response to fluorouracil therapy in cancer patients: the role of tumoral dihydropyrimidine dehydrogenase activity. J Clin Oncol 13:1663PubMed Etienne MC, Cheradame S, Fischel JL, Formento P, Dassonville O, Renee N, Schneider M, Thyss A, Demard F, Milano G (1995) Response to fluorouracil therapy in cancer patients: the role of tumoral dihydropyrimidine dehydrogenase activity. J Clin Oncol 13:1663PubMed
12.
go back to reference Evrard A, Cuq P, Robert B, Vian L, Pélegrin A, Cano JP (1999) Enhancement of 5-fluorouracil cytotoxicity by human thymidine-phosphorylase expression in cancer cells: in vitro and in vivo study. Int J Cancer 80:465PubMed Evrard A, Cuq P, Robert B, Vian L, Pélegrin A, Cano JP (1999) Enhancement of 5-fluorouracil cytotoxicity by human thymidine-phosphorylase expression in cancer cells: in vitro and in vivo study. Int J Cancer 80:465PubMed
13.
go back to reference Fujiwaki R, Hata K, Nakayama K, Moriyama M, Iwanari O, Katabuchi H, Okamura H, Sakai E, Miyazaki K (2002) Thymidine kinase in epithelial ovarian cancer: relationship with the other pyrimidine pathway enzymes. Int J Cancer 99:328CrossRefPubMed Fujiwaki R, Hata K, Nakayama K, Moriyama M, Iwanari O, Katabuchi H, Okamura H, Sakai E, Miyazaki K (2002) Thymidine kinase in epithelial ovarian cancer: relationship with the other pyrimidine pathway enzymes. Int J Cancer 99:328CrossRefPubMed
14.
go back to reference Fukushima M, Nomura H, Murakami Y, Shirasaka T, Aiba K (1996) Estimation of pathway of 5-fluorouracil anabolism in human cancer cells in vitro and in vivo. Jpn J Cancer Chemother 23:721 Fukushima M, Nomura H, Murakami Y, Shirasaka T, Aiba K (1996) Estimation of pathway of 5-fluorouracil anabolism in human cancer cells in vitro and in vivo. Jpn J Cancer Chemother 23:721
15.
go back to reference Heid CA, Stevenes J, Livak KJ, Williams PM (1996) Real time quantitative PCR. Genome Res 6:986PubMed Heid CA, Stevenes J, Livak KJ, Williams PM (1996) Real time quantitative PCR. Genome Res 6:986PubMed
16.
go back to reference Huang CL, Yokomise H, Kobayashi S, Fukushima M, Hitomi S, Wada H (2000) Intratumoral expression of thymidylate synthase and dihydropyrimidine dehydrogenase in non-small cell lung cancer patients treated with 5-FU-based chemotherapy. Int J Oncol 17:47PubMed Huang CL, Yokomise H, Kobayashi S, Fukushima M, Hitomi S, Wada H (2000) Intratumoral expression of thymidylate synthase and dihydropyrimidine dehydrogenase in non-small cell lung cancer patients treated with 5-FU-based chemotherapy. Int J Oncol 17:47PubMed
17.
go back to reference Ichikawa W, Uetake H, Shirota Y, Yamada H, Nishi N, Nihei Z, Sugihara K, Hirayama R (2003) Combination of dihydropyrimidine dehydrogenase and thymidylate synthase gene expressions in primary tumors as predictive parameters for the efficacy of fluoropyrimidine-based chemotherapy for metastatic colorectal cancer. Clin Cancer Res 9:786PubMed Ichikawa W, Uetake H, Shirota Y, Yamada H, Nishi N, Nihei Z, Sugihara K, Hirayama R (2003) Combination of dihydropyrimidine dehydrogenase and thymidylate synthase gene expressions in primary tumors as predictive parameters for the efficacy of fluoropyrimidine-based chemotherapy for metastatic colorectal cancer. Clin Cancer Res 9:786PubMed
18.
go back to reference Inaba M, Mitsuhashi J, Sawada H, Miike N, Naoe Y, Daimon A, Koizumi K, Tsujimoto H, Fukushima M (1996) Reduced activity of anabolizing enzymes in 5-fluorouracil-resistant human stomach cancer cells. Jpn J Cancer Res 87:212PubMed Inaba M, Mitsuhashi J, Sawada H, Miike N, Naoe Y, Daimon A, Koizumi K, Tsujimoto H, Fukushima M (1996) Reduced activity of anabolizing enzymes in 5-fluorouracil-resistant human stomach cancer cells. Jpn J Cancer Res 87:212PubMed
19.
go back to reference Ishikawa Y, Kubota T, Otani Y, Watanabe M, Teramoto T, Kumai K, Takechi T, Okabe H, Fukushima M, Kitajima M (2000) Dihydropyrimidine dehydrogenase and messenger RNA levels in gastric cancer: possible predictor for sensitivity to 5-fluorouracil. Jpn J Cancer Res 91:105PubMed Ishikawa Y, Kubota T, Otani Y, Watanabe M, Teramoto T, Kumai K, Takechi T, Okabe H, Fukushima M, Kitajima M (2000) Dihydropyrimidine dehydrogenase and messenger RNA levels in gastric cancer: possible predictor for sensitivity to 5-fluorouracil. Jpn J Cancer Res 91:105PubMed
20.
go back to reference Johnston PG, Lenz HJ, Leichman, CG, Danenberg KD, Allegra CJ, Danenberg PV, Leichman L (1995) Thymidylate synthase gene and protein expression correlate and are associated with response to 5-fluorouracil in human colorectal and gastric tumors. Cancer Res 55:1407PubMed Johnston PG, Lenz HJ, Leichman, CG, Danenberg KD, Allegra CJ, Danenberg PV, Leichman L (1995) Thymidylate synthase gene and protein expression correlate and are associated with response to 5-fluorouracil in human colorectal and gastric tumors. Cancer Res 55:1407PubMed
21.
go back to reference Johnston SJ, Ridge SA, Cassidy J, McLeod HL (1999) Regulation of dihydropyrimidine dehydrogenase in colorectal cancer. Clin Cancer Res 5:2566 Johnston SJ, Ridge SA, Cassidy J, McLeod HL (1999) Regulation of dihydropyrimidine dehydrogenase in colorectal cancer. Clin Cancer Res 5:2566
22.
go back to reference Kanzaki A, Takebayshi Y, Bando H, Eliason JF, Watanabe S, Miyashita H, Fukumoto M, Toi M, Uchida T (2002) Expression of uridine and thymidine phosphorylase genes in human breast carcinoma. Int J Cancer 97:631CrossRefPubMed Kanzaki A, Takebayshi Y, Bando H, Eliason JF, Watanabe S, Miyashita H, Fukumoto M, Toi M, Uchida T (2002) Expression of uridine and thymidine phosphorylase genes in human breast carcinoma. Int J Cancer 97:631CrossRefPubMed
23.
go back to reference Kasahara M, Takahashi Y, Nagata T, Asai S, Eguchi T, Ishii Y, Fujii M, Ishikawa K (2000) Thymidylate synthase expression correlates closely with E2F1 expression in colorectal cancer. Clin Cancer Res 6:2707PubMed Kasahara M, Takahashi Y, Nagata T, Asai S, Eguchi T, Ishii Y, Fujii M, Ishikawa K (2000) Thymidylate synthase expression correlates closely with E2F1 expression in colorectal cancer. Clin Cancer Res 6:2707PubMed
24.
go back to reference Leichman CG, Lenz HJ, Leichman L, Danenberg K, Baranda J, Groshen S, Boswell W, Metzger R, Tan M, Danenberg PV (1997) Quantitation of intratumoral thymidylate synthase expression predicts for disseminated colorectal cancer response and resistance to protracted-infusion fluorouracil and weekly leucovorin. J Clin Oncol 15:3223PubMed Leichman CG, Lenz HJ, Leichman L, Danenberg K, Baranda J, Groshen S, Boswell W, Metzger R, Tan M, Danenberg PV (1997) Quantitation of intratumoral thymidylate synthase expression predicts for disseminated colorectal cancer response and resistance to protracted-infusion fluorouracil and weekly leucovorin. J Clin Oncol 15:3223PubMed
25.
go back to reference Mader RM, Sieder AE, Braun J, Rizovski B, Kalipciyan M, Mueller MW, Jakesz R, Rainer H, Steger GG (1997) Transcription and activity of 5-fluorouracil converting enzymes in fluoropyrimidine resistance in colon cancer in vitro. Biochem Pharmacol 54:1233 Mader RM, Sieder AE, Braun J, Rizovski B, Kalipciyan M, Mueller MW, Jakesz R, Rainer H, Steger GG (1997) Transcription and activity of 5-fluorouracil converting enzymes in fluoropyrimidine resistance in colon cancer in vitro. Biochem Pharmacol 54:1233
26.
go back to reference Maehara Y, Moriguchi S, Emi Y, Watanabe A, Kohnoe S, Tsujitani S, Sugimachi K (1990) Comparison of pyrimidine nucleotide synthetic enzymes involved in 5-fluorouracil metabolism between human adenocarcinomas and squamous cell carcinomas. Cancer 66:156PubMed Maehara Y, Moriguchi S, Emi Y, Watanabe A, Kohnoe S, Tsujitani S, Sugimachi K (1990) Comparison of pyrimidine nucleotide synthetic enzymes involved in 5-fluorouracil metabolism between human adenocarcinomas and squamous cell carcinomas. Cancer 66:156PubMed
27.
go back to reference Marchetti S, Chazal M, Dubreuil A, Fischel JL, Etienne MC, Milano G (2001) Impact of thymidine phosphorylase surexpression on fluoropyrimidine activity and on tumor angiogenesis. Br J Cancer 85:439CrossRefPubMed Marchetti S, Chazal M, Dubreuil A, Fischel JL, Etienne MC, Milano G (2001) Impact of thymidine phosphorylase surexpression on fluoropyrimidine activity and on tumor angiogenesis. Br J Cancer 85:439CrossRefPubMed
28.
go back to reference Metzger R, Danenberg K, Leichman CG, Salonga D, Schwartz EL, Wadler S, Lenz HJ, Groshen S, Leichman L, Danenberg PV (1998) High basal level gene expression of thymidine phosphorylase (platelet-derived endothelial cell growth factor) in colorectal tumors is associated with nonresponse to 5-fluorouracil. Clin Cancer Res 4:2371PubMed Metzger R, Danenberg K, Leichman CG, Salonga D, Schwartz EL, Wadler S, Lenz HJ, Groshen S, Leichman L, Danenberg PV (1998) High basal level gene expression of thymidine phosphorylase (platelet-derived endothelial cell growth factor) in colorectal tumors is associated with nonresponse to 5-fluorouracil. Clin Cancer Res 4:2371PubMed
29.
go back to reference Paradiso A, Simone G, Petroni S, Leone B, Vallejo C, Lacava J, Romero A, Machiavelli M, De Lena M, Allegra CJ, Johnston PG (2000) Thymidylate synthase and p53 primary tumor expression as predictive factors for advanced colorectal cancer patients. Br J Cancer 82:560CrossRefPubMed Paradiso A, Simone G, Petroni S, Leone B, Vallejo C, Lacava J, Romero A, Machiavelli M, De Lena M, Allegra CJ, Johnston PG (2000) Thymidylate synthase and p53 primary tumor expression as predictive factors for advanced colorectal cancer patients. Br J Cancer 82:560CrossRefPubMed
30.
go back to reference Peters GJ, Laurensse E, Leyva A, Lankelma J, Pinedo HM (1986) Sensitivity of human, murine, and rat cells to 5-fluorouracil and 5′-deoxy-5-fluorouridine in relation to drug-metabolizing enzymes. Cancer Res 46:20PubMed Peters GJ, Laurensse E, Leyva A, Lankelma J, Pinedo HM (1986) Sensitivity of human, murine, and rat cells to 5-fluorouracil and 5′-deoxy-5-fluorouridine in relation to drug-metabolizing enzymes. Cancer Res 46:20PubMed
31.
go back to reference Peters GJ, Braakhuis BJ, de Bruijn EA, Laurensse EJ, van Walsum M, Pinedo HM (1989) Enhanced therapeutic efficacy of 5′-deoxy-5-fluorouridine in 5-fluorouracil resistant head and neck tumors in relation to 5-fluorouracil metabolizing enzymes. Br J Cancer 59:327PubMed Peters GJ, Braakhuis BJ, de Bruijn EA, Laurensse EJ, van Walsum M, Pinedo HM (1989) Enhanced therapeutic efficacy of 5′-deoxy-5-fluorouridine in 5-fluorouracil resistant head and neck tumors in relation to 5-fluorouracil metabolizing enzymes. Br J Cancer 59:327PubMed
32.
go back to reference Peters GJ, van Groeningen CJ, Laurensse EJ, Pinedo HM (1991) A comparison of 5-fluorouracil metabolism in human colorectal cancer and colon mucosa. Cancer 68:1903 Peters GJ, van Groeningen CJ, Laurensse EJ, Pinedo HM (1991) A comparison of 5-fluorouracil metabolism in human colorectal cancer and colon mucosa. Cancer 68:1903
33.
go back to reference Salonga D, Danenberg KD, Johnston M, Metzger R, Groshen S, Tsao-Wei DD, Lenz HJ, Leichman CG, Leichman L, Diasio RB, Danenberg PV (2000) Colorectal tumors responding to 5-fluorouracil have low gene expression levels of dihydropyrimidine dehydrogenase, thymidylate synthase, and thymidine phosphorylase. Clin Cancer Res 6:1322PubMed Salonga D, Danenberg KD, Johnston M, Metzger R, Groshen S, Tsao-Wei DD, Lenz HJ, Leichman CG, Leichman L, Diasio RB, Danenberg PV (2000) Colorectal tumors responding to 5-fluorouracil have low gene expression levels of dihydropyrimidine dehydrogenase, thymidylate synthase, and thymidine phosphorylase. Clin Cancer Res 6:1322PubMed
34.
go back to reference Schwartz EL, Baptiste N, Wadler S, Makower D (1995) Thymidine phosphorylase mediates the sensitivity of human colon carcinoma cells to 5-fluorouracil. J Biol Chem 270:19073PubMed Schwartz EL, Baptiste N, Wadler S, Makower D (1995) Thymidine phosphorylase mediates the sensitivity of human colon carcinoma cells to 5-fluorouracil. J Biol Chem 270:19073PubMed
35.
go back to reference Schwartz PM, Moir RD, Hyde CM, Turek PJ, Handschumacher RE (1985) Role of uridine phosphorylase in the anabolism of 5-fluorouracil. Biochem Pharmacol 34:3585 Schwartz PM, Moir RD, Hyde CM, Turek PJ, Handschumacher RE (1985) Role of uridine phosphorylase in the anabolism of 5-fluorouracil. Biochem Pharmacol 34:3585
36.
go back to reference Shirota Y, Ichikawa W, Uetake H, Yamada H, Nihei Z, Sugihara K (2002) Intratumoral dihydropyrimidine dehydrogenase messenger RNA level reflects tumor progression in human colorectal cancer. Ann Surg Oncol 9:599CrossRefPubMed Shirota Y, Ichikawa W, Uetake H, Yamada H, Nihei Z, Sugihara K (2002) Intratumoral dihydropyrimidine dehydrogenase messenger RNA level reflects tumor progression in human colorectal cancer. Ann Surg Oncol 9:599CrossRefPubMed
37.
go back to reference Takebayashi Y, Akiyama S, Akiba S, Yamada K, Miyadera K, Sumizawa T, Yamada Y, Murata F, Aikou T (1996) Clinicopathological and prognostic factor, thymidine phosphorylase, in human colorectal carcinoma. J Natl Cancer Inst 88:1110PubMed Takebayashi Y, Akiyama S, Akiba S, Yamada K, Miyadera K, Sumizawa T, Yamada Y, Murata F, Aikou T (1996) Clinicopathological and prognostic factor, thymidine phosphorylase, in human colorectal carcinoma. J Natl Cancer Inst 88:1110PubMed
38.
go back to reference Uetake H, Ichikawa W, Takechi T, Fukushima M, Nihei Z, Sugihara K (1999) Relationship between intratumoral dihydropyrimidine dehydrogenase activity and gene expression in human colorectal cancer. Clin Cancer Res 5:2836PubMed Uetake H, Ichikawa W, Takechi T, Fukushima M, Nihei Z, Sugihara K (1999) Relationship between intratumoral dihydropyrimidine dehydrogenase activity and gene expression in human colorectal cancer. Clin Cancer Res 5:2836PubMed
39.
go back to reference Yamada H, Ichikawa W, Uetake H, Shirota Y, Nihei Z, Sugihara K, Hirayama R (2001) Thymidylate synthase gene expression in primary colorectal cancer and metastatic sites. Clin Colorectal Cancer 1:169PubMed Yamada H, Ichikawa W, Uetake H, Shirota Y, Nihei Z, Sugihara K, Hirayama R (2001) Thymidylate synthase gene expression in primary colorectal cancer and metastatic sites. Clin Colorectal Cancer 1:169PubMed
Metadata
Title
Gene expression of 5-fluorouracil metabolic enzymes in primary colorectal cancer and corresponding liver metastasis
Authors
Mikito Inokuchi
Hiroyuki Uetake
Yoshinori Shirota
Hiroyuki Yamada
Masayuki Tajima
Kenichi Sugihara
Publication date
01-05-2004
Publisher
Springer-Verlag
Published in
Cancer Chemotherapy and Pharmacology / Issue 5/2004
Print ISSN: 0344-5704
Electronic ISSN: 1432-0843
DOI
https://doi.org/10.1007/s00280-003-0747-0

Other articles of this Issue 5/2004

Cancer Chemotherapy and Pharmacology 5/2004 Go to the issue
Webinar | 19-02-2024 | 17:30 (CET)

Keynote webinar | Spotlight on antibody–drug conjugates in cancer

Antibody–drug conjugates (ADCs) are novel agents that have shown promise across multiple tumor types. Explore the current landscape of ADCs in breast and lung cancer with our experts, and gain insights into the mechanism of action, key clinical trials data, existing challenges, and future directions.

Dr. Véronique Diéras
Prof. Fabrice Barlesi
Developed by: Springer Medicine