Evidence map›Paper›PMID 24632672›Full record

ArticlePloS one2014

DNA methylation of heparanase promoter influences its expression and associated with the progression of human breast cancer.

Fei Jiao, Shi-Yu Bai, Ying Ma, Zhong-Hai Yan, Zhen Yue, Yuan Yu, Xin Wang, Juan Wang

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.8field-weighted citation impact, top 31% 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

13 citing papers in PubMed, 22 citations in OpenAlex.

  1. The Pathophysiological Functions of Heparanases: From Evolution, Structural and Tissue-Specific Perspectives.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
    Review
  2. Article
  3. The Heparanase Regulatory Network in Health and Disease.International journal of molecular sciences · 2021
    Review
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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

8 authors at 3 institutions in 2 countries.

Fei JiaoDepartment of Biochemistry and Molecular Biology, Binzhou Medical College, Yantai, Shandong Province, People's Republic of China.
Shi-Yu BaiDepartment of Clinical Laboratory, Tai'an City Central Hospital, Tai'an, Shandong Province, People's Republic of China.
Ying MaDepartment of Biochemistry and Molecular Biology, Binzhou Medical College, Yantai, Shandong Province, People's Republic of China.
Zhong-Hai YanDepartment of Medicine, Columbia University, New York, New York, United States of America.
Zhen YueDepartment of Biochemistry and Molecular Biology, Binzhou Medical College, Yantai, Shandong Province, People's Republic of China.
Yuan YuDepartment of Biochemistry and Molecular Biology, Binzhou Medical College, Yantai, Shandong Province, People's Republic of China.
Xin WangDepartment of Clinical Laboratory, the PLA 107th Hospital Affiliated to Binzhou Medical College Yantai, Shandong Province, Jinan Military Area Command, People's Republic of China.
Juan WangDepartment of Biotechnology, Binzhou Medical College, Yantai, Shandong Province, People's Republic of China.
Binzhou Medical University · CNColumbia University · USTaian City Central Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Heparanase promotes tumor invasion and metastasis in several malignancies including breast cancer. However, the roles and regulation mechanisms of heparanase during breast cancer progression are still not fully understood. The aim of this study is to determine the differential regulation of heparanase gene expression in specific stages of breast cancer by DNA methylation. We detected levels of heparanase expression and DNA methylation patterns of its promoter in breast cancer cell lines (MCF-7 and MDA-MB-435) and clinical tissues, respectively. It has been observed that heparanase is highly expressed in the invasive MDA-MB-435 cells with low methylation modification in the heparanase promoter. In contrast, lower expression of heparanase in MCF-7 cells is accompanied by higher methylation in the promoter. Treatment of MCF-7 cells with 5-aza-2'-deoxycytidine (5-aza-dC), a potent demethylating agent, results in induction of heparanase expression and higher invasion potential in vitro and leads to an advantage of tumor formation in vivo. In 54 tissue samples, cancer samples at late stages (stage IV) showed the highest heparanase expression accomplished by little DNA methylation. On the contrary, methylation prevalence is highest in normal tissue and inversely correlated with heparanase expression. A significant correlation between DNA methylation and clinical stage was demonstrated (p = 0.012). Collectively, these results demonstrate that DNA methylation play the regulation role in heparanase gene in different stages of breast cancer and present a direct effect on tumor progression.

Indexed as

Disease ProgressionDNA MethylationGene Expression Regulation, NeoplasticAzacitidineBreast NeoplasmsCarcinogenesisCell ProliferationDecitabineGlucuronidaseHeparanaseHumansMCF-7 CellsNeoplasm InvasivenessPromoter Regions, GeneticAzacitidineDecitabineGlucuronidaseHeparanase

Identifiers

PMID24632672
PMCPMC3954879
OpenAlexW2047090897

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.