Dataset Information

The association between the preoperative serum levels of lipocalin-2 and matrix metalloproteinase-9 (MMP-9) and prognosis of breast cancer.

ABSTRACT:

Background

Although a number of experimental studies have suggested the role of lipocalin-2 (LCN2) and matrix metalloproteinase-9 (MMP-9) in breast cancer progression, limited numbers of epidemiological studies have examined the relationship between the levels of lipocalin-2 and MMP-9 and breast cancer survival.

Methods

Preoperative serum levels of lipocalin-2 and MMP-9 were measured in 303 breast cancer patients and 74 healthy controls recruited between 2004 and 2007. We examined the association between lipocalin-2 and MMP-9 levels and disease-free survival (DFS) using Cox proportional hazard regression model.

Results

The serum levels of lipocalin-2 and MMP-9 were not significantly different between patients and controls (P?>?0.05). Elevated lipocalin-2 and MMP-9 levels were associated with reduced DFS of breast cancer ( Ptrend?=?0.029 and Ptrend?=?0.063, respectively). When lipocalin-2 and MMP-9 levels were categorized based on the combined risk score, patients with higher levels of both lipocalin-2 and MMP-9 exhibited poor DFS compared to patients with lower levels (Ptrend?=?0.004). Furthermore, these effects were profound in patients with BMI less than 25?kg/m2 (adjusted hazard ratio (aHR), 3.17; 95% confidence intervals (CI), 1.66-6.06, Ptrend?ConclusionsOur study suggests that the elevated levels of lipocalin-2 and MMP-9 are associated with reduced breast cancer survival, particularly in patients with lower BMI and lymph-node negative breast cancers.

SUBMITTER: Sung H

PROVIDER: S-EPMC3479006 | biostudies-literature | 2012 May

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

The association between the preoperative serum levels of lipocalin-2 and matrix metalloproteinase-9 (MMP-9) and prognosis of breast cancer.

Sung Hyuna H Choi Ji-Yeob JY Lee Sang-Ah SA Lee Kyoung-Mu KM Han Sohee S Jeon Sujee S Song Minkyo M Lee Yunhee Y Park Sue K SK Yoo Keun-Young KY Noh Dong-Young DY Ahn Sei-Hyun SH Kang Daehee D

BMC cancer 20120528

<h4>Background</h4>Although a number of experimental studies have suggested the role of lipocalin-2 (LCN2) and matrix metalloproteinase-9 (MMP-9) in breast cancer progression, limited numbers of epidemiological studies have examined the relationship between the levels of lipocalin-2 and MMP-9 and breast cancer survival.<h4>Methods</h4>Preoperative serum levels of lipocalin-2 and MMP-9 were measured in 303 breast cancer patients and 74 healthy controls recruited between 2004 and 2007. We examined ...[more]

PMID: 22640376

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Project description:Published data on the association between MMP-9 polymorphisms (-1562 C?>?T, rs3918242; Gln279Arg, rs17576 Arg668Gln, rs17577) and asthma susceptibility are inconclusive. To derive a more precise estimation of this association, a meta-analysis was performed. A literature search was conducted in PubMed, Web of Science, EMBASE, Wanfang, and China National Knowledge Infrastructure (CNKI) databases to identify eligible studies. The pooled odds ratios (ORs) and corresponding 95% confidence intervals (CIs) were used to calculate the strength of association. Sensitivity analysis was performed to evaluate the influence of individual studies on the overall effect estimates, and funnel plots and Egger's test were inspected for indication of publication bias. Seven studies with 1592 asthma patients and 1987 controls were finally identified. Overall, we found no significant association between -1562 C?>?T, rs3918242 polymorphism, and asthma susceptibility in any of the genetic model comparisons. After categorizing studies into different subgroups on the basis of ethnicity and age, there is still no significant association. For the Gln279Arg, rs17576 polymorphism, there seems to be a significant association in the allelic genetic model in regard to the P value (OR?=?1.11, 95% CI?=?1.00-1.22, I 2?=?0%, P (Z)=0.044); however, the value of lower 95% CI is 1.0. For the Arg668Gln, rs17577 polymorphism, a high significant association was observed in the dominant model comparison (OR?=?1.65, 95% CI?=?1.28-2.11, I 2?=?22.50%, P (Z)=0), recessive model comparison (OR?=?2.40, 95% CI?=?1.23-4.72, I 2?=?0%, P (Z)=0.011), homozygote genotype comparison (OR?=?2.69, 95% CI?=?1.36-5.33, I 2?=?0%, P (Z)=0.004), and allelic genetic model (OR?=?1.59, 95% CI?=?1.29-1.97, I 2?=?36.9%, P (Z)=0). Sensitivity analysis demonstrated the stability of our results, and publication bias was not evident. The present meta-analysis suggests that MMP-9 Arg668Gln, rs17577 polymorphism may be the risk factor for asthma susceptibility.

Dataset Information

The association between the preoperative serum levels of lipocalin-2 and matrix metalloproteinase-9 (MMP-9) and prognosis of breast cancer.

Background

Methods

Results

Publications

The association between the preoperative serum levels of lipocalin-2 and matrix metalloproteinase-9 (MMP-9) and prognosis of breast cancer.

Similar Datasets

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