Evidence map›Paper›PMID 29642935›Full record

ArticleJournal of experimental & clinical cancer research : CR2018

SP1-induced upregulation of lncRNA SPRY4-IT1 exerts oncogenic properties by scaffolding EZH2/LSD1/DNMT1 and sponging miR-101-3p in cholangiocarcinoma.

Yi Xu, Yue Yao, Xingming Jiang, Xiangyu Zhong, Zhidong Wang, Chunlong Li, Pengcheng Kang, Kaiming Leng, Daolin Ji, Zhenglong Li and 3 more

Open access · goldAbstract read
In one paragraph

Article in Journal of experimental & clinical cancer research : CR, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed, 3 pooled it
11.3field-weighted citation impact, top 1% 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

81 citing papers in PubMed, 3 syntheses or guidelines pooled it, 177 citations in OpenAlex.

  1. Pooled it
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  4. Review
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  7. Review
  8. The diverse roles of circular RNAs in cholangiocarcinoma.Medical oncology (Northwood, London, England) · 2025
    Review
  9. Article
  10. Article
  11. Advanced biomedical research · 2025
    Review
  12. Article
  13. Article
  14. MicroRNA in adenoid cystic carcinoma (Review).International journal of oncology · 2023
    Review
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  20. Article

21 more citing papers are in PubMed but not listed here.

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 1 country.

Yi XuDepartment of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, People's Republic of China.
Yue YaoDepartment of Endocrinology and Metabolism, Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, People's Republic of China.
Xingming JiangDepartment of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, People's Republic of China.
Xiangyu ZhongDepartment of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, People's Republic of China.
Zhidong WangDepartment of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, People's Republic of China.
Chunlong LiDepartment of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, People's Republic of China.
Pengcheng KangDepartment of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, People's Republic of China.
Kaiming LengDepartment of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, People's Republic of China.
Daolin JiDepartment of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, People's Republic of China.
Zhenglong LiDepartment of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, People's Republic of China.
Lining HuangDepartment of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, People's Republic of China.
Wei QinDepartment of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, People's Republic of China.
Yunfu CuiDepartment of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, People's Republic of China. yfcui777@hotmail.com.
Second Affiliated Hospital of Harbin Medical University · CNHarbin Medical University · CN

Funding

China Postdoctoral Science Foundation 2017M621305Health and Family Planning Commission Research Project of Heilongjiang Province 2016-049Heilongjiang Postdoctoral Science Foundation LBH-Z16096Innovative Science Foundation of Harbin Medical University 2016LCZX09National Natural Science Foundation of China 81170426National Natural Science Foundation of China 81602088Natural Science Foundation of Heilongjiang Province H201396Postgraduate innovative research project of Harbin Medical University YJSCX2016-21HYD
6 · The paper itself

Abstract

backgroundAccumulating evidence has indicated that long non-coding RNAs (lncRNAs) behave as a novel class of transcription products during multiple cancer processes. However, the mechanisms responsible for their alteration in cholangiocarcinoma (CCA) are not fully understood.

methodsThe expression of SPRY4-IT1 in CCA tissues and cell lines was determined by RT-qPCR, and the association between SPRY4-IT1 transcription and clinicopathologic features was analyzed. Luciferase reporter and chromatin immunoprecipitation (ChIP) assays were performed to explore whether SP1 could bind to the promoter region of SPRY4-IT1 and activate its transcription. The biological function of SPRY4-IT1 in CCA cells was evaluated both in vitro and in vivo. ChIP, RNA binding protein immunoprecipitation (RIP) and luciferase reporter assays were performed to determine the molecular mechanism of SPRY4-IT1 in cell proliferation, apoptosis and invasion.

resultsSPRY4-IT1 was abnormally upregulated in CCA tissues and cells, and this upregulation was correlated with tumor stage and tumor node metastasis (TNM) stage in CCA patients. SPRY4-IT1 overexpression was also an unfavorable prognostic factor for patients with CCA. Additionally, SP1 could bind directly to the SPRY4-IT1 promoter region and activate its transcription. Furthermore, SPRY4-IT1 silencing caused tumor suppressive effects via reducing cell proliferation, migration and invasion; inducing cell apoptosis and reversing the epithelial-to-mesenchymal transition (EMT) process in CCA cells. Mechanistically, enhancer of zeste homolog 2 (EZH2) along with the lysine specific demethylase 1 (LSD1) or DNA methyltransferase 1 (DNMT1) were recruited by SPRY4-IT1, which functioned as a scaffold. Importantly, SPRY4-IT1 positively regulated the expression of EZH2 through sponging miR-101-3p.

conclusionsOur data illustrate how SPRY4-IT1 plays an oncogenic role in CCA and may offer a potential therapeutic target for treating CCA.

Indexed as

Gene Expression Regulation, NeoplasticAnimalsCell Line, TumorCholangiocarcinomaDisease Models, AnimalDNA (Cytosine-5-)-Methyltransferase 1Enhancer of Zeste Homolog 2 ProteinEpithelial-Mesenchymal TransitionFemaleGene Knockdown TechniquesHistone DemethylasesHumansMiceMicroRNAsModels, BiologicalPromoter Regions, GeneticDNA (Cytosine-5-)-Methyltransferase 1DNMT1 protein, humanEnhancer of Zeste Homolog 2 ProteinEZH2 protein, humanHistone DemethylasesKDM1A protein, humanlong noncoding RNA SPRY4-IT1, humanMicroRNAsMIRN101 microRNA, humanRNA, Long NoncodingSp1 Transcription FactorCholangiocarcinomalncRNAOncogenic propertiesScaffoldSPRY4-IT1

Identifiers

PMID29642935
PMCPMC5896100
OpenAlexW2797630761

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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.