Evidence map›Paper›PMID 27022952›Full record

ArticlePloS one2016

Comparative Analysis of Matrix Metalloproteinase Family Members Reveals That MMP9 Predicts Survival and Response to Temozolomide in Patients with Primary Glioblastoma.

Qingbin Li, Baoshi Chen, Jinquan Cai, Ying Sun, Guangzhi Wang, Yongli Li, Ruiyan Li, Yan Feng, Bo Han, Jianlong Li and 3 more

Open access · goldAbstract readComparative Study
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 2 pooled it
2.9field-weighted citation impact, top 10% 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

38 citing papers in PubMed, 2 syntheses or guidelines pooled it, 74 citations in OpenAlex.

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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 3 institutions in 1 country.

Qingbin LiDepartment of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Baoshi ChenDepartment of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Jinquan CaiDepartment of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Ying SunDepartment of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Guangzhi WangDepartment of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Yongli LiDepartment of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Ruiyan LiDepartment of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Yan FengDepartment of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Bo HanDepartment of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Jianlong LiDepartment of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Yu TianDepartment of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Liye YiDepartment of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Chuanlu JiangDepartment of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Harbin Medical University · CNSecond Affiliated Hospital of Harbin Medical University · CNBeijing Tian Tan Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGlioblastoma multiform (GBM) is the most common malignant primary brain tumor in adults. Radiotherapy plus concomitant and adjuvant TMZ chemotherapy is the current standard of care for patients with GBM. Matrix metalloproteinases (MMPs), a family of zinc-dependent endopeptidases, are key modulators of tumor invasion and metastasis due to their ECM degradation capacity. The aim of the present study was to identify the most informative MMP member in terms of prognostic and predictive ability for patients with primary GBM.

methodThe mRNA expression profiles of all MMP genes were obtained from the Chinese Glioma Genome Atlas (CGGA), the Repository for Molecular Brain Neoplasia Data (REMBRANDT) and the GSE16011 dataset. MGMT methylation status was also examined by pyrosequencing. The correlation of MMP9 expression with tumor progression was explored in glioma specimens of all grades. Kaplan-Meier analysis and Cox proportional hazards regression models were used to investigate the association of MMP9 expression with survival and response to temozolomide.

resultsMMP9 was the only significant prognostic factor in three datasets for primary glioblastoma patients. Our results indicated that MMP9 expression is correlated with glioma grade (p<0.0001). Additionally, low expression of MMP9 was correlated with better survival outcome (OS: p = 0.0012 and PFS: p = 0.0066), and MMP9 was an independent prognostic factor in primary GBM (OS: p = 0.027 and PFS: p = 0.032). Additionally, the GBM patients with low MMP9 expression benefited from temozolomide (TMZ) chemotherapy regardless of the MGMT methylation status.

conclusionsPatients with primary GBMs with low MMP9 expression may have longer survival and may benefit from temozolomide chemotherapy.

Indexed as

Biomarkers, TumorDacarbazineDisease ProgressionDNA MethylationGene Expression Regulation, NeoplasticGlioblastomaHumansKaplan-Meier EstimateMatrix Metalloproteinase 9Neoplasm GradingPrognosisProportional Hazards ModelsRNA, MessengerSurvival AnalysisTemozolomideTreatment OutcomeBiomarkers, TumorDacarbazineMatrix Metalloproteinase 9RNA, MessengerTemozolomide

Identifiers

PMID27022952
PMCPMC4811585
OpenAlexW2323280683

What OpenQuestion holds

Textmetadata
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.