Evidence map›Paper›PMID 23516466›Full record

ArticlePloS one2013

Differential expression of the RANKL/RANK/OPG system is associated with bone metastasis in human non-small cell lung cancer.

Xianbo Peng, Wei Guo, Tingting Ren, Zhiyuan Lou, Xinchang Lu, Shuai Zhang, Qunshan Lu, Yifeng Sun

RetractedOpen access · goldAbstract readRetracted Publication
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 50 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 1 pooled it
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

50 citing papers in PubMed, 1 synthesis or guideline pooled it, 89 citations in OpenAlex.

  1. Pooled it
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  10. Kalkitoxin: A Potent Suppressor of Distant Breast Cancer Metastasis.International journal of molecular sciences · 2023
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  19. AnFrontiers in bioengineering and biotechnology · 2020
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

Xianbo PengMusculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China.
Wei Guo
Tingting Ren
Zhiyuan Lou
Xinchang Lu
Shuai Zhang
Qunshan Lu
Yifeng Sun
Peking University People's Hospital · CNPeking University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHuman non-small cell lung cancer (NSCLC) patients exhibit a high propensity to develop skeletal metastasis, resulting in excessive osteolytic activity. The RANKL/RANK/OPG system, which plays a pivotal role in bone remodeling by regulating osteoclast formation and activity, is of potential interest in this context. MATERIALS AND

methodsReverse transcriptase polymerase chain reaction, western blotting, and immunohistochemical analysis were used to examine the expression of RANKL, RANK, and OPG in human NSCLC cell lines with different metastatic potentials, as well as in 52 primary NSCLC samples and 75 NSCLC bone metastasis samples. In primary NSCLC patients, the expression of these proteins was correlated with clinicopathological parameters. Recombinant human RANKL and transfected RANKL cDNA were added to the PAa cell line to evaluate the promoter action of RANKL during the process of metastasis in vitro and in vivo.

resultsUp-regulated RANKL, RANK, and OPG expression and increased RANKL:OPG ratio were detected in NSCLC cell lines and in tumor tissues with bone metastasis, and were correlated with higher metastatic potential. The metastatic potential of NSCLC in vitro and in vivo, including migration and invasion ability, was significantly enhanced by recombinant human RANKL and the transfection of RANKL cDNA, and was impaired after OPG was added. The increased expression of RANKL and OPG correlated with tumor stage, lymph node metastasis, and distant metastasis.

conclusionsDifferential expression of RANKL, RANK, and OPG is associated with the metastatic potential of human NSCLC to skeleton, raising the possibility that the RANKL/RANK/OPG system could be a therapeutic target for the treatment of metastatic NSCLC patients.

Indexed as

AdultAgedAnimalsBone NeoplasmsCarcinoma, Non-Small-Cell LungCell Line, TumorCell MovementFemaleGene Expression Regulation, NeoplasticHumansLung NeoplasmsMaleMiceMiddle AgedMultimodal ImagingOsteoprotegerinOsteoprotegerinRANK LigandReceptor Activator of Nuclear Factor-kappa BRNA, Messenger

Identifiers

PMID23516466
PMCPMC3596380
OpenAlexW2001471912

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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.