Evidence map›Paper›PMID 17883871›Full record

ArticleMolecular cancer2007

Swainsonine reduces 5-fluorouracil tolerance in the multistage resistance of colorectal cancer cell lines.

Jun Hamaguchi, Hiroaki Nakagawa, Masato Takahashi, Takeaki Kudo, Naoya Kamiyama, Bailong Sun, Takahiro Oshima, Yuji Sato, Kisaburo Deguchi, Satoru Todo and 1 more

Open access · goldAbstract read
In one paragraph

Article in Molecular cancer, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.1field-weighted citation impact, top 46% 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

12 citing papers in PubMed, 46 citations in OpenAlex.

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  7. The Role of Glycosyltransferases in Colorectal Cancer.International journal of molecular sciences · 2021
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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 2 institutions in 1 country.

Jun HamaguchiDepartment of General Surgery, Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan. hama@med.hokudai.ac.jp
Hiroaki Nakagawa
Masato Takahashi
Takeaki Kudo
Naoya Kamiyama
Bailong Sun
Takahiro Oshima
Yuji Sato
Kisaburo Deguchi
Satoru Todo
Shin-Ichiro Nishimura
Hokkaido University · JPAsahikawa Medical College Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDrug resistance is a major problem in cancer chemotherapy. Acquisition of chemo-resistance not only reduces the effectiveness of drugs, but also promotes side effects and markedly reduces the patient's quality of life. However, a number of resistance mechanisms have been reported and are thought to be the reason for the difficulties in solving drug-resistance problems.

resultTo investigate the mechanisms of drug resistance, a set of cell lines with different levels of sensitivity and possessing different mechanisms of resistance to 5-fluorouracil (5-FU) was established from a colorectal cancer cell line. The expression of thymidylate synthase, orotic acid phosphoribosyltransferase and dihydropyrimidine dehydrogenase, which are well known to be related to drug resistance, differed among these cell lines, indicating that these cell lines acquired different resistance mechanisms. However, swainsonine, an inhibitor of N-glycan biosynthesis, reduced 5-FU-tolerance in all resistant cells, whereas the sensitivity of the parental cells was unchanged. Further analysis of the N-glycan profiles of all cell lines showed partial inhibition of biosynthesis and no cytotoxicity at the swainsonine dosage tested.

conclusionThese observations suggest that N-linked oligosaccharides affect 5-FU resistance more widely than do drug-resistance related enzymes in colorectal cancer cells, and that the N-glycan could be a universal target for chemotherapy. Further, swainsonine may enhance the performance of chemotherapy by reducing tolerance.

Indexed as

AnimalsCell Line, TumorCell SurvivalColorectal NeoplasmsDrug Resistance, NeoplasmDrug ToleranceFluorouracilGene Expression Regulation, NeoplasticMicePolysaccharidesRNA, MessengerSwainsonineFluorouracilPolysaccharidesRNA, MessengerSwainsonine

Identifiers

PMID17883871
PMCPMC2071919
OpenAlexW2139283349

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.