Evidence map›Paper›PMID 35377900›Full record

ArticlePloS one2022

CXCR2 signaling might have a tumor-suppressive role in patients with cholangiocarcinoma.

Yurie Yamamoto, Atsushi Sugimoto, Koji Maruo, Gen Tsujio, Tomohiro Sera, Shuhei Kushiyama, Sadaaki Nishimura, Kenji Kuroda, Shingo Togano, Shinpei Eguchi and 5 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
5.0field-weighted citation impact, top 4% 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

11 citing papers in PubMed, 22 citations in OpenAlex.

  1. Interleukin-8 in health and disease.Molecular biomedicine · 2026
    Review
  2. The Significance of CXCL1 in Cancer: An Overview of Molecular Mechanisms.International journal of molecular sciences · 2026
    Review
  3. Review
  4. Review
  5. Article
  6. Bioinformatic Analysis of the CXCR2 Ligands in Cancer Processes.International journal of molecular sciences · 2023
    Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. 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

15 authors at 1 institution in 1 country.

Yurie YamamotoMolecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, Osaka, Japan.
Atsushi SugimotoMolecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, Osaka, Japan.
Koji MaruoMolecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, Osaka, Japan.
Gen TsujioMolecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, Osaka, Japan.
Tomohiro SeraMolecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, Osaka, Japan.
Shuhei KushiyamaMolecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, Osaka, Japan.
Sadaaki NishimuraMolecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, Osaka, Japan.
Kenji KurodaMolecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, Osaka, Japan.
Shingo ToganoMolecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, Osaka, Japan.
Shinpei EguchiDepartment of Hepato-Biliary-Pancreatic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
Ryota TanakaDepartment of Hepato-Biliary-Pancreatic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
Kenjiro KimuraDepartment of Hepato-Biliary-Pancreatic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
Ryosuke AmanoDepartment of Hepato-Biliary-Pancreatic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
Masaichi OhiraDepartment of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
Masakazu YashiroMolecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, Osaka, Japan.ORCID 0000-0001-5743-7228
Osaka City University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWe reported that chemokine C-X-C motif receptor 2 (CXCR2) signaling appears to play an important role in the pathogenic signaling of gastric cancer (GC), and although CXCR2 may have a role in other solid cancers, the significance of CXCR2 in cholangiocarcinoma (CCA) has not been evaluated. Herein, we determined the clinicopathologic significance of CXCL1-CXCR2 signaling in CCA. MATERIALS AND

methodsTwo human CCA cell lines, OCUG-1 and HuCCT1, were used. CXCR2 expression was examined by western blotting. We investigated the effects of CXCL1 on the proliferation (by MTT assay) and migration activity (by a wound-healing assay) of each cell line. Our immunohistochemical study of the cases of 178 CCA patients examined the expression levels of CXCR2 and CXCL1, and we analyzed the relationship between these expression levels and the patients' clinicopathologic features.

resultsCXCR2 was expressed on both CCA cell lines. CXCL1 significantly inhibited both the proliferative activity and migratory activity of both cell lines. CXCL1 and CXCR2 were immunohistochemically expressed in 73% and 18% of the CCA cases, respectively. The CXCL1-positive group was significantly associated with negative lymph node metastasis (p = 0.043). The CXCR2-positive group showed significantly better survival (p = 0.042, Kaplan-Meier). A multivariate logistic regression analysis revealed that CXCR2 expression (p = 0.031) and lymph node metastasis (p = 0.004) were significantly correlated with the CCA patients' overall survival.

conclusionCXCR2 signaling might exert a tumor-suppressive effect on CCA cells. CXCR2 might be a useful independent prognostic marker for CCA patients after surgical resection.

Indexed as

Bile Duct NeoplasmsCholangiocarcinomaReceptors, Interleukin-8BBile Ducts, IntrahepaticCell Line, TumorCell MovementCell ProliferationHumansLymphatic MetastasisPrognosisCXCR2 protein, humanReceptors, Interleukin-8B

Identifiers

PMID35377900
PMCPMC8979434
OpenAlexW4225857329

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Registered trials

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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.