Evidence map›Paper›PMID 33726850›Full record

ArticleCancer & metabolism2021

Sulfasalazine modifies metabolic profiles and enhances cisplatin chemosensitivity on cholangiocarcinoma cells in in vitro and in vivo models.

Malinee Thanee, Sureerat Padthaisong, Manida Suksawat, Hasaya Dokduang, Jutarop Phetcharaburanin, Poramate Klanrit, Attapol Titapun, Nisana Namwat, Arporn Wangwiwatsin, Prakasit Sa-Ngiamwibool and 3 more

Open access · goldAbstract read
In one paragraph

Article in Cancer & metabolism, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.8field-weighted citation impact, top 12% 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

17 citing papers in PubMed, 28 citations in OpenAlex.

  1. Review
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  7. CD44 variant exons induce chemoresistance by modulating cell death pathways.Frontiers in cell and developmental biology · 2025
    Review
  8. Article
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  13. A Novel Anti-CD44 Variant 9 Monoclonal Antibody CCurrent issues in molecular biology · 2023
    Article
  14. Article
  15. Article
  16. Review
  17. High Levels of Serum IgG forInternational journal of general medicine · 2021
    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

13 authors at 2 institutions in 2 countries.

Malinee ThaneeCholangiocarcinoma Screening and Care Program (CASCAP), Khon Kaen University, Khon Kaen, Thailand.
Sureerat PadthaisongCholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen, Thailand.
Manida SuksawatCholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen, Thailand.
Hasaya DokduangCholangiocarcinoma Screening and Care Program (CASCAP), Khon Kaen University, Khon Kaen, Thailand.
Jutarop PhetcharaburaninCholangiocarcinoma Screening and Care Program (CASCAP), Khon Kaen University, Khon Kaen, Thailand.
Poramate KlanritCholangiocarcinoma Screening and Care Program (CASCAP), Khon Kaen University, Khon Kaen, Thailand.
Attapol TitapunCholangiocarcinoma Screening and Care Program (CASCAP), Khon Kaen University, Khon Kaen, Thailand.
Nisana NamwatCholangiocarcinoma Screening and Care Program (CASCAP), Khon Kaen University, Khon Kaen, Thailand.
Arporn WangwiwatsinCholangiocarcinoma Screening and Care Program (CASCAP), Khon Kaen University, Khon Kaen, Thailand.
Prakasit Sa-NgiamwiboolCholangiocarcinoma Screening and Care Program (CASCAP), Khon Kaen University, Khon Kaen, Thailand.
Narong KhuntikeoCholangiocarcinoma Screening and Care Program (CASCAP), Khon Kaen University, Khon Kaen, Thailand.
Hideyuki SayaDivision of Gene Regulation, Institute for Advanced Medical Research (IAMR), Keio University School of Medicine, Tokyo, 160-8582, Japan.
Watcharin LoilomeCholangiocarcinoma Screening and Care Program (CASCAP), Khon Kaen University, Khon Kaen, Thailand. watclo@kku.ac.th.ORCID http://orcid.org/0000-0001-8572-5577
Khon Kaen University · THKeio University · JP

Funding

Thailand Research Fund RSA5980013
6 · The paper itself

Abstract

backgroundSulfasalazine (SSZ) is widely known as an xCT inhibitor suppressing CD44v9-expressed cancer stem-like cells (CSCs) being related to redox regulation. Cholangiocarcinoma (CCA) has a high recurrence rate and no effective chemotherapy. A recent report revealed high levels of CD44v9-positive cells in CCA patients. Therefore, a combination of drugs could prove a suitable strategy for CCA treatment via individual metabolic profiling.

methodsWe examined the effect of xCT-targeted CD44v9-CSCs using sulfasalazine combined with cisplatin (CIS) or gemcitabine in CCA in vitro and in vivo models and did NMR-based metabolomics analysis of xenograft mice tumor tissues.

resultsOur findings suggest that combined SSZ and CIS leads to a higher inhibition of cell proliferation and induction of cell death than CIS alone in both in vitro and in vivo models. Xenograft mice showed that the CD44v9-CSC marker and CK-19-CCA proliferative marker were reduced in the combination treatment. Interestingly, different metabolic signatures and significant metabolites were observed in the drug-treated group compared with the control group that revealed the cancer suppression mechanisms.

conclusionsSSZ could improve CCA therapy by sensitization to CIS through killing CD44v9-positive cells and modifying the metabolic pathways, in particular tryptophan degradation (i.e., kynurenine pathway, serotonin pathway) and nucleic acid metabolism.

Indexed as

CD44v9ChemosensitivityCholangiocarcinoma therapyMetabolic signatureSulfasalazine

Identifiers

PMID33726850
PMCPMC7968252
OpenAlexW3137374134

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.