Evidence map›Paper›PMID 25901475›Full record

ArticleInternational journal of oncology2015

Crucial roles of thymidine kinase 1 and deoxyUTPase in incorporating the antineoplastic nucleosides trifluridine and 2'-deoxy-5-fluorouridine into DNA.

Kazuki Sakamoto, Tatsushi Yokogawa, Hiroyuki Ueno, Kei Oguchi, Hiromi Kazuno, Keiji Ishida, Nozomu Tanaka, Akiko Osada, Yukari Yamada, Hiroyuki Okabe and 1 more

Open access · hybridAbstract read
In one paragraph

Article in International journal of oncology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
3.6field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

34 citing papers in PubMed, 57 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Trial
  4. Review
  5. Article
  6. Article
  7. Article
  8. Impact of renal function on non-hematologic toxicities in mCRC patients treated with TAS-102: a post-hoc analysis of the JASCC-CINV2001 study.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2025
    Observational
  9. Article
  10. The emerging emetogenicity of trifluridine/tipiracil (TAS‑102) from patient self-reporting: a multicenter, prospective, observational study.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2024
    Observational
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Biomarkers of Trifluridine-Tipiracil Efficacy.Journal of clinical medicine · 2021
    Review
  17. Review
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 1 institution in 1 country.

Kazuki SakamotoDrug Discovery and Development I, Discovery and Preclinical Research Division, Taiho Pharmaceutical Co., Ltd., Tsukuba, Ibaraki 300-2611, Japan.
Tatsushi YokogawaDrug Discovery and Development I, Discovery and Preclinical Research Division, Taiho Pharmaceutical Co., Ltd., Tsukuba, Ibaraki 300-2611, Japan.
Hiroyuki UenoDrug Discovery and Development I, Discovery and Preclinical Research Division, Taiho Pharmaceutical Co., Ltd., Tsukuba, Ibaraki 300-2611, Japan.
Kei OguchiDrug Discovery and Development I, Discovery and Preclinical Research Division, Taiho Pharmaceutical Co., Ltd., Tsukuba, Ibaraki 300-2611, Japan.
Hiromi KazunoDrug Discovery and Development I, Discovery and Preclinical Research Division, Taiho Pharmaceutical Co., Ltd., Tsukuba, Ibaraki 300-2611, Japan.
Keiji IshidaDrug Discovery and Development I, Discovery and Preclinical Research Division, Taiho Pharmaceutical Co., Ltd., Tsukuba, Ibaraki 300-2611, Japan.
Nozomu TanakaDrug Discovery and Development I, Discovery and Preclinical Research Division, Taiho Pharmaceutical Co., Ltd., Tsukuba, Ibaraki 300-2611, Japan.
Akiko OsadaDrug Discovery and Development I, Discovery and Preclinical Research Division, Taiho Pharmaceutical Co., Ltd., Tsukuba, Ibaraki 300-2611, Japan.
Yukari YamadaDrug Discovery and Development I, Discovery and Preclinical Research Division, Taiho Pharmaceutical Co., Ltd., Tsukuba, Ibaraki 300-2611, Japan.
Hiroyuki OkabeDrug Discovery and Development I, Discovery and Preclinical Research Division, Taiho Pharmaceutical Co., Ltd., Tsukuba, Ibaraki 300-2611, Japan.
Kenichi MatsuoDrug Discovery and Development I, Discovery and Preclinical Research Division, Taiho Pharmaceutical Co., Ltd., Tsukuba, Ibaraki 300-2611, Japan.
Taiho Pharmaceutical (Japan) · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Trifluridine (FTD) and 2'-deoxy-5-fluorouridine (FdUrd), a derivative of 5-fluorouracil (5-FU), are antitumor agents that inhibit thymidylate synthase activity and their nucleotides are incorporated into DNA. However, it is evident that several differences occur in the underlying antitumor mechanisms associated with these nucleoside analogues. Recently, TAS-102 (composed of FTD and tipiracil hydrochloride, TPI) was shown to prolong the survival of patients with colorectal cancer who received a median of 2 prior therapies, including 5-FU. TAS-102 was recently approved for clinical use in Japan. These data suggest that the antitumor activities of TAS-102 and 5-FU proceed via different mechanisms. Thus, we analyzed their properties in terms of thymidine salvage pathway utilization, involving membrane transporters, a nucleoside kinase, a nucleotide-dephosphorylating enzyme, and DNA polymerase α. FTD incorporated into DNA with higher efficiency than FdUrd did. Both FTD and FdUrd were transported into cells by ENT1 and ENT2 and were phosphorylated by thymidine kinase 1, which showed a higher catalytic activity for FTD than for FdUrd. deoxyUTPase (DUT) did not recognize dTTP and FTD-triphosphate (F3dTTP), whereas deoxyuridine-triphosphate (dUTP) and FdUrd-triphosphate (FdUTP) were efficiently degraded by DUT. DNA polymerase α incorporated both F3dTTP and FdUTP into DNA at sites aligned with adenine on the opposite strand. FTD-treated cells showed differing nuclear morphologies compared to FdUrd-treated cells. These findings indicate that FTD and FdUrd are incorporated into DNA with different efficiencies due to differences in the substrate specificities of TK1 and DUT, causing abundant FTD incorporation into DNA.

Indexed as

Antimetabolites, AntineoplasticColorectal NeoplasmsDNA, NeoplasmDrug CombinationsEquilibrative Nucleoside Transporter 1Equilibrative-Nucleoside Transporter 2FluorouracilHCT116 CellsHumansMalePyrophosphatasesPyrrolidinesSubstrate SpecificityThymidine KinaseThymineTrifluridineAntimetabolites, AntineoplasticDNA, NeoplasmDrug CombinationsEquilibrative Nucleoside Transporter 1Equilibrative-Nucleoside Transporter 2FluorouracilPyrophosphatasesPyrrolidinesSLC29A1 protein, humanSLC29A2 protein, humanThymidine Kinasethymidine kinase 1ThymineTrifluridinetrifluridine tipiracil drug combinationUraciluridine triphosphatase

Identifiers

PMID25901475
PMCPMC4441292
OpenAlexW2046838280

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.