scholarly journals Prognostic Role of microRNA-155 in Various Carcinomas: Results from a Meta-Analysis

2013 ◽  
Vol 34 (6) ◽  
pp. 379-386 ◽  
Author(s):  
Jing He ◽  
Fengmei Zhang ◽  
Ying Wu ◽  
Wei Zhang ◽  
Xiaoli Zhu ◽  
...  

BACKGROUND: Recent studies have shown that microRNAs (miRNA) have prognostic values in cancers. This meta-analysis seeks to summarize the global predicting role of miR-155 for survival in patients with a variety of carcinomas.METHODS: Eligible studies were identified through multiple search strategies. Data were extracted from studies investigating the relationship between miR-155 expression and survival in cancer patients. Combined hazard ratios (HRs) of miR-155 for outcome were analyzed.RESULTS: A total of 16 studies dealing with various carcinomas were included for this meta-analysis. For overall survival, higher miR-155 expression could significantly predict worse outcome with the pooled HR of 2.057 (95% CI: 1.392–3.039). For relapse or progress-free survival, elevated miR-155 was also a significant predictor, with a combined HR of 1.918 (95% CI: 1.311–2.806,). In addition, subgroup analysis showed that higher expression of miR-155 had the trends to predict worse outcome in lung cancer. However, the HRs did not reach the statistical significance.CONCLUSION: Our findings suggest that miR-155 detection has a prognostic value in cancer patients. Regularly measuring miR-155 expression may be useful in clinical practice.

2020 ◽  
Author(s):  
Yuan Yuan ◽  
Hai Zhong ◽  
Liang Ye ◽  
Qian Li ◽  
rong su Fang ◽  
...  

Abstract Background : The prognostic value of elevated pretreatment platelet counts remains controversial in lung cancer patients. We performed the present meta-analysis to determine its precise role in these patients. Methods: We employed a multiple search strategy in the PubMed, EMBASE and Cochrane Library databases to identify eligible studies. Disease-free survival (DFS)/progression-free survival (PFS)/time to progression (TTP) and overall survival (OS) were used as outcomes with hazard ratios (HRs) and 95% confidence intervals (CIs). Heterogeneity among the studies and publication bias were also evaluated. Results : A total of 40 studies including 16696 lung cancer patients were eligible for the analysis. Overall, the pooled analysis showed that compared with normal platelet counts, elevated pretreatment platelet counts were associated with poorer OS (HR= 1.54, 95% CI: 1.37-1.72, P<0.001) and poorer DFS/PFS/TTP (HR=1.62, 95% CI: 1.33-1.98, P<0.001) in patients with lung cancer. In subgroup analyses, elevated pretreatment platelet counts were also associated with poorer OS and DFS/PFS/TTP in most subgroups. There was no evidence of publication bias. Conclusions : This meta-analysis revealed that elevated pretreatment platelet counts were an independent predictor of OS and DFS/PFS/TTP in lung cancer patients. Large-scale prospective studies and a validation study are warranted.


2019 ◽  
Author(s):  
Yuan Yuan ◽  
Hai Zhong ◽  
Liang Ye ◽  
Qian Li ◽  
Rong Su Fang ◽  
...  

Abstract Background : The prognostic value of pretreatment elevated platelet count remains controversial in lung cancer patients. We performed the present meta-analysis to determine the precise role of it in these patients.Methods: We performed a multiple search strategy in PubMed database, EMBASE and Cochrane Library to identify eligible studies. Disease-free survival (DFS) /Progress-free survival (PFS)/Time to progress(TTP) and Overall survival (OS) were used as outcomes with hazard ratio (HR) and its 95% confidence intervals (CIs). Heterogeneity among studies and publication bias were also evaluated.Results : A total of 39 studies including 16696 lung cancer patients were eligible in the analysis. Overall, the pooled analysis showed that pretreatment elevated platelet count was associated with poorer OS (HR= 1.47, 95%CI: 1.31-1.66, P<0.001) and poorer DFS/PFS/TTP ((HR=1.63, 95%CI: 1.28-2.09, P<0.001) in patients with lung cancer compared with normal platelet count. In subgroup analyses, pretreatment elevated platelet count was also associated with poorer OS and DFS/PFS/TTP in most subgroups. There was no evidence of publication bias.Conclusions : This meta-analysis revealed that pretreatment elevated platelet count was an independent predictor of OS and DFS/PFS/TTP in lung cancer patients. Large scale prospective studies and a validation study are warranted.


2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Wenbo Fu ◽  
Lijuan Pang ◽  
Yunzhao Chen ◽  
Lan Yang ◽  
Janbo Zhu ◽  
...  

Objectives.We performed this meta-analysis to summarize all the results from available studies, aiming delineating the prognostic role of miRNA in esophageal cancer.Design and Methods. We searched the electronic databases PubMed, EMBASE, and ISI Web of Science without time restrictions for the correlative literature to aggregate the survival results. Relevant data were extracted from studies investigating the relationship between miRNAs expression and survival in esophageal cancer patients. Pooled hazard ratios of miR-21and miR-375 for OS in ESCC were calculated.Results.A total of 25 studies involving 2,258 subjects analyzed the relationship between miRNA and prognosis of EC. In all, thirty-nine miRNAs associated with prognosis were reported in these studies. The pooled HR of higher miR-21 expression compared with lower miR-21 expression in ESCC was 1.84 (95% CI: 1.41–2.40,P<0.001), which could significantly predict poorer OS in ESCC. Besides, higher miR-375 was also a significant predictor for OS in ESCC, with a pooled HR of 0.55 (95% CI: 0.42–0.72,P<0.001).Conclusions.Our results support that miR-21 and miR-375 have a prognostic role in ESCC and may be useful therapeutic targets for the treatment of ESCC and meticulous follow-up for early detection of recurrence.


2020 ◽  
Author(s):  
Yuan Yuan ◽  
Hai Zhong ◽  
Liang Ye ◽  
Qian Li ◽  
rong su Fang ◽  
...  

Abstract Background : The prognostic value of elevated pretreatment platelet counts remains controversial in lung cancer patients. We performed the present meta-analysis to determine its precise role in these patients. Methods: We employed a multiple search strategy in the PubMed, EMBASE and Cochrane Library databases to identify eligible studies. Disease-free survival (DFS)/progression-free survival (PFS)/time to progression (TTP) and overall survival (OS) were used as outcomes with hazard ratios (HRs) and 95% confidence intervals (CIs). Heterogeneity among the studies and publication bias were also evaluated. Results : A total of 40 studies including 16696 lung cancer patients were eligible for the analysis. Overall, the pooled analysis showed that compared with normal platelet counts, elevated pretreatment platelet counts were associated with poorer OS (HR= 1.54, 95% CI: 1.37-1.72, P<0.001) and poorer DFS/PFS/TTP (HR=1.62, 95% CI: 1.33-1.98, P<0.001) in patients with lung cancer. In subgroup analyses, elevated pretreatment platelet counts were also associated with poorer OS and DFS/PFS/TTP in most subgroups. There was no evidence of publication bias. Conclusions : This meta-analysis revealed that elevated pretreatment platelet counts were an independent predictor of OS and DFS/PFS/TTP in lung cancer patients. Large-scale prospective studies and a validation study are warranted.


2020 ◽  
Author(s):  
Jie Wang ◽  
Pingyong Zhong ◽  
Hao Hua

Abstract Background:Small nucleolar RNA host gene 3 (SNHG3) is a promising long non-coding RNA that may possess prognostic value for different types of tumors. The objective of this meta-analysis is to evaluate the prognostic value of lncRNA SNHG3 in cancer patients.Methods:A systematic literature search of the PubMed, Cochrane Library, EMBASE, Medline, Web of Science, CNKI, Weipu, and Wanfang electronic databases was carried out in this meta-anaysis. The synthetic hazard ratios (HRs) or odd ratios (ORs) with 95% confidence intervals (CIs) were obtained to determine the prognostic and clinicopathological significance of SNHG3 expression in tumors. Results:The final meta-anaysis included 17 studies that contained 2072 patients. The pooled results provided evidence that SNHG3 overexpression predicted reduced overall survival (OS) (HR=2.15, 95%CI: 1.76–2.63, P<0.00001), recurrence-free survival (RFS) ( HR=2.22, 95%CI: 1.04–4.76, P=0.04) and disease-free survival (DFS) (HR=2.04, 95%CI: 1.35–3.09, P=0.0007) for various cancers. Additionally, the SNHG3 overexpression was concerned with tumor node metastasis (TNM) stage (III/IV vs. I/II, OR=2.91, 95%CI: 1.60–5.29, P=0.0005), lymph node metastasis (LNM) (positive vs negative, OR=5.00,95%CI:2.82–8.87,P<0.00001), distant metastasis (DM) (positive vs negative, OR=2.29, 95%CI: 1.52–3.47, P<0.0001) and tumor size (larger vs smaller, OR=1.80, 95%CI: 1.04–3.11, P=0.04).Conclusions:Our results indicated that SNHG3 overexpression was closely correlated with shorter OS in multiple cancer types, suggesting that SNHG3 might function as a promising predictor for clinical outcomes in cancer.


2017 ◽  
Vol 35 (15_suppl) ◽  
pp. e15075-e15075
Author(s):  
Jan Novotny ◽  
Ioannis Gkekas ◽  
Ladislav Pecen ◽  
Karin Strigard ◽  
Richard Palmquist ◽  
...  

e15075 Background: The prognostic role of microsatellite instability (MSI) in stage II colon cancer patients remains controversial despite it has been investigated in a number of studies. Hazard ratios differ considerably among these studies. We performed a meta-analysis to define the significance of MSI in this group of patients. Methods: Studies indexed in PubMed presenting separate data on MSI status and survival outcomes for stage II colon cancer patients have been analyzed using fixed-effect meta-analysis of hazard ratio according to the method of Peto. Results: Analysis was performed on 19 studies including 5998 patients. 47.2% patients received postoperative chemotherapy, 52.8% were males and 47.2% females. Eight studies included also rectal cancer patients. MSI was detected in 20.8 % of the patients. Hazard ration (HR) for overall survival (OS): MSI vs MSS for the entire population: 0.73 (95% confidence interval (CI): 0.33-1.65); HR for disease free survival (DFS): 0.60 (95% CI: 0.27-1.32). No statistical significant difference was found when comparing studies analyzing MSI with genotyping (MG) and immunohistochemistry (IHC) (MG vs IHC: HR OS 0.45, 95% CI 0.10-2.05 vs. 0.95, 95% CI 0.57–1.58; HR DFS 0.51, 95% CI: 0.14-1.85 vs. 0.67, 95% CI 0.26-1.70). However, numerically MSI determination with genotyping shows remarkably lower hazard ratios (further from HR equal to one) for both OS and DFS. Separate analysis of studies investigating colon cancer patients only showed HR OS 0.72 (95% CI: 0.31-1.71); HR DFS 0.60 (95% CI: 0.27-1.31). Conclusions: This is the first meta-analysis that evaluates the prognostic role of MSI in the well defined population of colon cancer patients with stage II disease. No significant relation was found between MSI status and various survival outcomes. Routine determination of MSI status to guide postoperative management of stage II colon cancer patients cannot be recommended based on the presently included studies. This study was supported from the unrestricted grant of Cancerforskningsfonden i Norrland/Lions Cancerforskningsfond LP 14-2065 and Akademisk Miljö NLL-576531.


2015 ◽  
Vol 37 (4) ◽  
pp. 1560-1571 ◽  
Author(s):  
Yiting Geng ◽  
Yingjie Shao ◽  
Wenting He ◽  
Wenwei Hu ◽  
Yanjie Xu ◽  
...  

Background/Aims: The role of Tumor-infiltrating lymphocytes (TILs) in the prognosis of patients with lung cancer is still controversial. We performed a meta-analysis to evaluate the prognostic role of TILs in lung cancer. Methods: Studies were recruited by searching PubMed, Embase and the Cochrane Library and assessed by further quality evaluation. The pooled hazard ratios (HRs) with 95% confidence intervals (CIs) were calculated to investigate the association between TIL subsets and lung cancer patients' outcome. Results: A total of 29 articles including 8,600 patients were enrolled into the meta-analysis. Our results indicated that high level of CD8+ cells infiltration in tumor stroma (TS) or tumor nest (TN) was associated with better OS in lung cancer patients (HR = 0.76, 95% CI 0.62-0.93, P = 0.006; HR = 0.80, 95% CI 0.67-0.96; P = 0.018, respectively). Similar results could be also observed in CD3+ T cells infiltration. High CD4+ T lymphocytes infiltration in TS was explicitly accompanied by better OS (HR = 0.65, 95% CI 0.46-0.91; P = 0.013), rather than in TN. In contrast, high density of FOXP3+ T cells infiltration in TS showed a poor PFS (HR = 2.67, 95% CI, 1.74-4.08, P < 0.001). Conclusion: This meta-analysis clarified that high level of CD8+ and CD3+ T cells infiltration in TS or TN, and high CD4+ T lymphocytes infiltration in TS showed better OS in lung cancer patients, whereas high density of FOXP3+ T cells infiltration in TS could be recognized as a negative prognostic factor.


2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Yao Wei ◽  
Ben Niu

Objectives. The expression of metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), a highly abundant and ubiquitously expressed long noncoding RNA (lncRNA), influences clinical parameters and may have prognostic value in cancer. This meta-analysis evaluated the prognostic role of MALAT1 in various cancers.Materials and Methods. Systematic literature searches of PubMed and EMBASE databases were conducted for eligible studies of the prognostic role of MALAT1 in cancer. Overall survival (OS), disease-specific survival (DSS), and disease-free survival (DFS) were analyzed. Summary hazard ratios (HRs) and 95% confidence intervals (95% CIs) were assessed to evaluate the influence of MALAT1 expression on patient prognosis.Results. Nine studies with a total of 932 patients were included in the analysis. Elevated MALAT1 expression was significantly correlated with poor OS (HR 2.02; 95% CI: 1.62–2.52;P<0.001;I2=0%). Subgroup analysis indicated that tumor type, histology type, ethnicity, and measurement technique did not affect the prognostic value of MALAT1 for OS. The HR of elevated MALAT1 for DFS was 2.78 (95% CI: 1.87–4.15;P<0.001;I2=0%).Conclusions. Elevated MALAT1 expression is correlated with poor OS in various types of cancer, suggesting that this gene is a prognostic factor for different types of cancer.


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