Evidence map›Paper›PMID 28469808›Full record

ArticleAmerican journal of translational research2017

Methylation of kruppel-like factor 2 (KLF2) associates with its expression and non-small cell lung cancer progression.

Wenbin Jiang, Xueqing Xu, Shaoli Deng, Jie Luo, Huan Xu, Chao Wang, Tingting Sun, Guoqin Lei, Fengling Zhang, Cheng Yang and 3 more

Open access · greenAbstract read
In one paragraph

Article in American journal of translational research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.8field-weighted citation impact, top 14% 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

21 citing papers in PubMed, 37 citations in OpenAlex.

  1. Review
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  6. Mechanobiology of portal hypertension.JHEP reports : innovation in hepatology · 2023
    Review
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  16. Review
  17. Hepatic microcirculation and mechanisms of portal hypertension.Nature reviews. Gastroenterology & hepatology · 2019
    Review
  18. Article
  19. Article
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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

13 authors at 1 institution in 1 country.

Wenbin JiangDepartment of Clinical Laboratory, Daping Hospital, The Third Military Medical UniversityChongqing 400042, China.
Xueqing XuMolecular Biology Center, The State Key Laboratory of Trauma, Burn, and Combined Injury, Daping Hospital, The Third Military Medical UniversityChongqing 400042, China.
Shaoli DengDepartment of Clinical Laboratory, Daping Hospital, The Third Military Medical UniversityChongqing 400042, China.
Jie LuoDepartment of Clinical Laboratory, Daping Hospital, The Third Military Medical UniversityChongqing 400042, China.
Huan XuDepartment of Clinical Laboratory, Daping Hospital, The Third Military Medical UniversityChongqing 400042, China.
Chao WangDepartment of Clinical Laboratory, Daping Hospital, The Third Military Medical UniversityChongqing 400042, China.
Tingting SunDepartment of Clinical Laboratory, Daping Hospital, The Third Military Medical UniversityChongqing 400042, China.
Guoqin LeiDepartment of Clinical Laboratory, Daping Hospital, The Third Military Medical UniversityChongqing 400042, China.
Fengling ZhangDepartment of Clinical Laboratory, Daping Hospital, The Third Military Medical UniversityChongqing 400042, China.
Cheng YangDepartment of Clinical Laboratory, Daping Hospital, The Third Military Medical UniversityChongqing 400042, China.
Lin ZhouDepartment of Clinical Laboratory, Daping Hospital, The Third Military Medical UniversityChongqing 400042, China.
Feng WangDepartment of Clinical Laboratory, Daping Hospital, The Third Military Medical UniversityChongqing 400042, China.
Ming ChenDepartment of Clinical Laboratory, Daping Hospital, The Third Military Medical UniversityChongqing 400042, China.
Army Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Kruppel-like factor 2 (KLF2) is a putative tumor suppressor gene. This study investigated its role and epigenetic mechanisms in human non-small cell lung cancer (NSCLC) in ex vivo and in vitro. A total of 47 paired NSCLC and normal tissues and six cell lines were analyzed using qRT-PCR for KLF2 expression. KLF2 methylation was assessed using the methylation specific PCR (MSP) or bisulfite sequencing PCR (BSP). Functional KLF2 region 4 (+567 to +906) was confirmed using the dual-luciferase reporter assay, while CCK-8 cell viability and flow cytometric assays were used to assess changes in cell viability, cell cycle distribution, and apoptosis after knockdown or re-expression of KLF2. Western blot was performed to analyze the effects of KLF2 shRNA on knockdown of KLF2 expression and p15 and p21 expression in cells. We found that KLF2 expression was significantly reduced in NSCLC cells and tissues via KLF2 methylation. Reduction of KLF2 expression was associated with KLF2 region 4 hypermethylation in 27 of 47 (57.45%) NSCLC tissues. Furthermore, methylation at KLF2 region 4 was significantly associated with lymph node metastasis and advanced TNM stage. Re-expression of KLF2 suppressed NSCLC cell viability, arrested cells at G0/G1 cell cycle by induction of p15 and p21 expression, and promoted apoptosis, whereas knockdown of KLF2 expression had the opposite effects on cells. Taken together, KLF2 possesses tumor suppressor functions in NSCLC and detection of KLF2 methylation should be further evaluated as a tumor or prognostic biomarker for NSCLC.

Indexed as

biomarkerclinicopathological datagene methylationKLF2Non-small cell lung cancer

Identifiers

PMID28469808
PMCPMC5411951
OpenAlexW2971255653

What OpenQuestion holds

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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.