Evidence map›Paper›PMID 20534121›Full record

ArticleBMC cancer2010

Increased expression of MMP9 is correlated with poor prognosis of nasopharyngeal carcinoma.

Zhen Liu, Lixia Li, Zhixiong Yang, Weiren Luo, Xin Li, Huiling Yang, Kaitai Yao, Bin Wu, Weiyi Fang

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed
4.8field-weighted citation impact, top 5% 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

67 citing papers in PubMed, 141 citations in OpenAlex.

  1. Trial
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  6. Could MMP3 and MMP9 Serve as Biomarkers in EBV-Related Oropharyngeal Cancer.International journal of molecular sciences · 2024
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  8. MMP9 in pan-cancer and computational study to screen for MMP9 inhibitors.American journal of translational research · 2024
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  13. Review
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  17. Matrix Metalloproteinase-9 Expression and Status of Cervical Lymph Nodes in Patients with Nasopharyngeal Carcinoma.Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India · 2019
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7 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

9 authors at 3 institutions in 1 country.

Zhen LiuKey Lab for Transcriptomics and Proteomics of Human Fatal Diseases, Cancer Research Institute, Southern Medical University, 510515Guangzhou, PR China.
Lixia Li
Zhixiong Yang
Weiren Luo
Xin Li
Huiling Yang
Kaitai Yao
Bin Wu
Weiyi Fang
Guangdong Medical College · CNSouthern Medical University · CNFirst Affiliated Hospital of University of South China · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe aim of the present study was to analyze the expression of matrix metalloproteinase 9 (MMP9) in nasopharyngeal carcinoma (NPC) and its correlation with clinicopathologic features, including the survival of patients with NPC.

methodsUsing real-time PCR, we detected the mRNA expression of MMP9 in normal nasopharyngeal tissues and nasopharyngeal carcinoma (NPC) tissues. Using immunohistochemistry analysis, we analyzed MMP9 protein expression in clinicopathologically characterized 164 NPC cases (116 male and 48 female) with age ranging from 17 to 80 years (median = 48.4 years) and 32 normal nasopharyngeal tissues. Cases with greater than or equal to 6 and less than 6 of the score value of cytoplasmic MMP9 immunostaining were regarded as high expression and low expression, respectively. The relationship between the expression levels of MMP9 and clinical features was analyzed.

resultsThe expression level of MMP9 mRNA was markedly greater in NPC tissues than that in the nasopharyngeal tissues. Immunohistochemical analysis revealed that the protein expression of MMP9 detected in NPC tissues was higher than that in the nasopharyngeal tissues (P = 0.004). In addition, high levels of MMP9 protein were positively correlated with the status of lymph node metastasis (N classification) (P = 0.002) and clinical stage (P < 0.001) of NPC patients. Patients with higher MMP9 expression had a significantly shorter overall survival time than did patients with low MMP9 expression. Multivariate analysis suggested that the level of MMP9 expression was an independent prognostic indicator (P = 0.008) for the survival of patients with NPC.

conclusionHigh level of MMP9 expression is a potential unfavorable prognostic factor for patients with NPC.

Indexed as

AdolescentAdultAgedAged, 80 and overBiomarkers, TumorCarcinomaChi-Square DistributionFemaleGene Expression Regulation, EnzymologicGene Expression Regulation, NeoplasticHumansImmunohistochemistryKaplan-Meier EstimateLymphatic MetastasisMaleMatrix Metalloproteinase 9Biomarkers, TumorMatrix Metalloproteinase 9RNA, Messenger

Identifiers

PMID20534121
PMCPMC2896957
OpenAlexW2076229847

What OpenQuestion holds

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LicenceCC BY
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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.