Evidence map›Paper›PMID 26261421›Full record

ArticleOncoTargets and therapy2015

Low claudin-6 expression correlates with poor prognosis in patients with non-small cell lung cancer.

Qiang Wang, Yan Zhang, Tao Zhang, Zhi-Gang Han, Li Shan

Open access · goldAbstract read
In one paragraph

Article in OncoTargets and therapy, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
0.9field-weighted citation impact, top 23% 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

24 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. Review
  7. Review
  8. Binding of YY1/CREB to an Enhancer Region Triggers Claudin 6 Expression inInternational journal of molecular sciences · 2023
    Article
  9. Downregulation ofTranslational cancer research · 2023
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. CLDN6: From Traditional Barrier Function to Emerging Roles in Cancers.International journal of molecular sciences · 2021
    Review
  17. Review
  18. Targeting claudins in cancer: diagnosis, prognosis and therapy.American journal of cancer research · 2021
    Review
  19. Claudin-6 is down-regulated in gastric cancer and its potential pathway.Cancer biomarkers : section A of Disease markers · 2020
    Article
  20. Review
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

5 authors at 2 institutions in 1 country.

Qiang WangDepartment of Thoracic Oncology, The Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xinjiang Province, People's Republic of China.
Yan ZhangDepartment of Thoracic Oncology, The Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xinjiang Province, People's Republic of China.
Tao ZhangDepartment of Oncology, First Hospital of Lanzhou University, Lanzhou, Gansu Province, People's Republic of China.
Zhi-Gang HanDepartment of Thoracic Oncology, The Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xinjiang Province, People's Republic of China.
Li ShanDepartment of Thoracic Oncology, The Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xinjiang Province, People's Republic of China.
Xinjiang Medical University · CNFirst Hospital of Lanzhou University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveClaudins are found in junctional complexes mediating cell adhesion and are involved in the attachment of tight junctions to the underlying cytoskeleton. Abnormal claudin-6 expression has been observed for a variety of malignant solid tumors, but the expression of claudin-6 in non-small cell lung cancer (NSCLC) has not yet been characterized.

methodsImmunohistochemistry, reverse transcription-polymerase chain reaction (RT-PCR), and western blot analysis were used to quantify claudin-6 expression in 123 cases of NSCLC and non-cancerous adjacent tissue. We analyzed the relationship between claudin-6 expression and clinicopathological features of NSCLC. The Kaplan-Meier method was used to analyze postoperative survival rates, and the log-rank test was used to assess differences in survival rates. The Cox regression model was used to perform multivariate analysis.

resultsClaudin-6 expression was low for 61 of 123 (49.6%) NSCLC tissue samples and for 33 of 123 (26.8%) normal adjacent tissue samples. RT-PCR and western blot analyses confirmed the immunohistochemistry results. Claudin-6 expression was associated with lymph node metastasis (P<0.001) and TNM stage (P=0.007). Kaplan-Meier analysis indicated that patients with low claudin-6 expression had significantly lower survival rates than those with high claudin-6 expression. Multivariate analysis suggested that low claudin-6 expression was an independent indicator of prognosis in NSCLC patients.

conclusionLow claudin-6 expression is an independent prognostic biomarker that indicates a worse prognosis in patients with NSCLC.

Indexed as

claudin-6immunohistochemistryNSCLCRT-PCRwestern blot

Identifiers

PMID26261421
PMCPMC4527519
OpenAlexW1858453874

What OpenQuestion holds

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LicenceCC BY-NC
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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.