Evidence map›Paper›PMID 14716816›Full record

ArticleWorld journal of gastroenterology2004

Correlation of thymidylate synthase, thymidine phosphorylase and dihydropyrimidine dehydrogenase with sensitivity of gastrointestinal cancer cells to 5-fluorouracil and 5-fluoro-2'-deoxyuridine.

Tao Ma, Zheng-Gang Zhu, Yu-Bao Ji, Yi Zhang, Ying-Yan Yu, Bing-Ya Liu, Hao-Ran Yin, Yan-Zhen Lin

Open access · hybridAbstract read
In one paragraph

Article in World journal of gastroenterology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.5field-weighted citation impact, top 10% 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

22 citing papers in PubMed, 52 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Review
  5. Pharmacogenomics of 5-fluorouracil in colorectal cancer: review and update.Cellular oncology (Dordrecht, Netherlands) · 2020
    Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Resveratrol induces apoptosis of pancreatic cancers cells by inhibiting miR-21 regulation of BCL-2 expression.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2013
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  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

8 authors at 1 institution in 1 country.

Tao MaShanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Second Medical University, Shanghai 200025, China.
Zheng-Gang Zhu
Yu-Bao Ji
Yi Zhang
Ying-Yan Yu
Bing-Ya Liu
Hao-Ran Yin
Yan-Zhen Lin
Ruijin Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo determine the expression levels of three metabolic enzymes of fluoropyrimidines: thymidylate synthase (TS), thymidine phosphorylase (TP) and dihydropyrimidine dehydrogenase (DPD) in seven human gastrointestinal cancer cell lines, and to compare the enzyme levels with the sensitivity to 5-fluorouracil (5-FU) and 5-fluoro-2'-deoxyuridine (FdUrd).

methodsTS, TP and DPD mRNA levels were assessed by semi-quantitative RT-PCR, TP and DPD protein contents were measured by ELISA. Fifty percent inhibitory concentrations of growth (IC50), representing the sensitivity to drugs, were determined by MTT assay.

resultsIC50 values ranged from 1.28 to 12.26 microM for 5-FU, and from 5.02 to 24.21 microM for FdUrd, respectively. Cell lines with lower DPD mRNA and protein levels tended to be more sensitive to 5-FU (P<0.05), but neither TS nor TP correlated with 5-FU IC50 (P>0.05). Only TS mRNA level was sharply related with FdUrd sensitivity (P<0.05), but TP and DPD were not (P>0.05). A correlation was found between mRNA and protein levels of DPD (P<0.05), but not TP (P<0.05).

conclusionDPD and TS enzyme levels may be useful indicators in predicting the antitumor activity of 5-FU or FdUrd, respectively.

Indexed as

Colorectal NeoplasmsStomach NeoplasmsAntimetabolites, AntineoplasticCell Line, TumorDihydrouracil Dehydrogenase (NADP)Drug Resistance, NeoplasmEnzymesFloxuridineFluorouracilGene Expression Regulation, EnzymologicGene Expression Regulation, NeoplasticHumansThymidine PhosphorylaseThymidylate SynthaseAntimetabolites, AntineoplasticDihydrouracil Dehydrogenase (NADP)EnzymesFloxuridineFluorouracilThymidine PhosphorylaseThymidylate Synthase

Identifiers

PMID14716816
PMCPMC4716997
OpenAlexW2406511502

What OpenQuestion holds

Textmetadata
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.