scholarly journals Analysis of the Expression of Cell Division Cycle-Associated Genes and Its Prognostic Significance in Human Lung Carcinoma: A Review of the Literature Databases

2020 ◽  
Vol 2020 ◽  
pp. 1-14
Author(s):  
Chongxiang Chen ◽  
Siliang Chen ◽  
Lanlan Pang ◽  
Honghong Yan ◽  
Ma Luo ◽  
...  

Background. Lung cancer (LC) has become the top cause responsible for cancer-related deaths. Cell division cycle-associated (CDCA) genes exert an important role in the life process. Dysregulation in the process of cell division may lead to malignancy. Methods. Transcriptional data on CDCA gene family and patient survival data were examined for lung cancer (LC) patients from the GEPIA, Oncomine, cBioPortal, and Kaplan–Meier Plotter databases. Results. CDCA1/2/3/4/5/7/8 expression levels were higher in lung adenocarcinoma tissues, and the CDCA1/2/3/4/5/6/7/8 expression levels were increased in squamous cell LC tissues compared with those in noncarcinoma lung tissues. The expression levels of CDCA1/2/3/4/5/8 showed correlation with tumor classification. The Kaplan–Meier Plotter database was employed to carry out survival analysis, indicating that increased CDCA1/2/3/4/5/6/7/8 expression levels were obviously related to poor overall survival (OS) and progression-free survival (PFS) (P<0.05). Only LC patients with increased CDCA3/4/5/8 expression were significantly related to lower post-progression survival (PPS) (P<0.05). The following processes were affected by CDCA genes’ alteration: R-HAS-2500257: resolution of sister chromatid cohesion; GO:0051301: cell division; CORUM: 1118: chromosomal passenger complex (CPC, including CDCA8, INCENP, AURKB, and BIRC5); CORUM: 127: NDC80 kinetochore complex; M129: the PID PLK1 pathway; and GO: 0007080: mitotic metaphase plate congression, all of which were remarkably modulated since the alterations affected CDCA genes. Conclusions. Upregulated CDCA genes’ expression levels in LC tissues probably play a crucial part in LC oncogenesis. The upregulated CDCA genes’ expression levels are used as the potential prognostic markers to improve patient survival and the LC prognostic accuracy. CDCA genes probably exert their functions in tumorigenesis through the PLK1 pathway.

2021 ◽  
Vol 12 ◽  
Author(s):  
Chen Huang ◽  
Chuqi Lei ◽  
Boyu Pan ◽  
Senbiao Fang ◽  
Yubao Chen ◽  
...  

Minichromosome maintenance proteins (MCMs) are considered to be essential factors coupling DNA replication to both cell cycle progression and checkpoint regulation. Previous studies have shown that dysregulation of MCMs are implicated in tumorigenesis of lung cancer. However, the distinct expression/mutation patterns and prognostic values of MCMs in lung cancer have yet to be systematically elucidated. In the present study, we analyzed the transcriptional levels, mutations, and prognostic value of MCM1-10 in non-small cell lung cancer (NSCLC) patients using multiple bioinformatics tools, including ONCOMINE, GEPIA, Kaplan–Meier Plotter, cBioPortal, and GESA. The analysis results from GEPIA dataset showed that MCM2/4/10 was significantly high expressed in both lung adenocarcinoma (LUAD) and squamous cell lung carcinomas (LUSCs). Meanwhile, the expression levels of MCM2/4/6/7/8 were associated with advanced tumor stages. Subsequent survival analysis using the Kaplan–Meier Plotter indicated that high expression levels of MCM1/2/3/4/5/6/7/8/10 were associated with worse overall survival (OS), while high expression level of MCM9 predicted better OS in these patients. Furthermore, we experimentally validated overexpression of MCM2 and MCM4 in NSCLC, thus the results from this study support a view that they may serve as potential prospective biomarkers to identify high-risk subgroups of NSCLC patients.


2020 ◽  
Author(s):  
Qiongzi Wang ◽  
Xueshan Qiu

Abstract Iroquoishomeobox transcription factor family (IRXs)have been increasingly reported to play roles in suppressing or promoting a variety of cancers, however, little is known about their expression and prognostic value in terms of human lung cancer. In this study, Oncomine, GEPIA, Kaplan-Meier plotter, and cBioPortal databases were used to analyze the different expression patterns and prognostic values of six IRXs in NSCLC and examine their related functions and pathways using GO enrichment. Compared with normal lung cancer tissues, the expression of IRX1 and IRX2 in NSCLC tissues was significantly lower and was positively correlated with the 10-year survival rate of patients. Higher expression of IRX4 was related to terminal tumors, and suggested a poor prognosis. It was also found that IRXs may play a tumor-suppressive role in the localization of cytoplasm in NSCLC, while localization in the nucleus suggests a more malignant behavior. Together these results suggest that IRX1 and IRX2 may be prognostic indicators of LUAD, and that IRX4 could be a potential target for LUAD treatment.


2008 ◽  
Vol 123 (11) ◽  
pp. 2616-2625 ◽  
Author(s):  
Michiko Harao ◽  
Shinya Hirata ◽  
Atsushi Irie ◽  
Satoru Senju ◽  
Tetsuya Nakatsura ◽  
...  

2018 ◽  
Vol 38 (5) ◽  
Author(s):  
Yan-Wu Zhou ◽  
Rong Li ◽  
Chao-Jun Duan ◽  
Yang Gao ◽  
Yuan-Da Cheng ◽  
...  

Chromosome 14 ORF 166 (C14orf166), a protein involved in the regulation of RNA transcription and translation, has been reported to possess the potency to promote tumorigenesis; however, the role of C14orf166 in non-small-cell lung cancer (NSCLC) remains unknown. The purpose of the present study was to assess C14orf166 expression and its clinical significance in NSCLC. Immunohistochemical staining, quantitative real-time PCR (qRT-PCR), and Western blotting were used to detect the C14orf166 protein and mRNA expression levels in NSCLC tissues compared with adjacent normal tissues, as well as in NSCLC cells lines compared with normal human bronchial epithelial cells (HBE). Then, the correlations between the C14orf166 expression levels and the clinicopathological features of NSCLC were analyzed. Additionally, the Cox proportional hazard model was used to evaluate the prognostic significance of C14orf166. We found that C14orf166 expression increased in carcinoma tissues compared with their adjacent normal tissues at the protein (P&lt;0.001) and mRNA levels (P&lt;0.001). High expression of C14orf166 was significantly associated with the T stage (P=0.006), lymph node metastasis (P=0.001), advanced TNM stage (P&lt;0.001), and chemotherapy (P&lt;0.001). Moreover, according to the survival analysis, patients with overexpressed C14orf166 were inclined to experience a shorter overall survival and disease-free survival time (P&lt;0.001). Multivariate COX analysis implied that C14orf166 was an independent prognostic biomarker. Taken together, our findings indicate that the overexpression of C14orf166 may contribute to the disease progression of NSCLC, represent a novel prognostic predictor and help high-risk patients make better decisions for subsequent therapy.


2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Ying Liu ◽  
Xiaoli Chen ◽  
Xi Chen ◽  
Xiaobing Yang ◽  
Qingjie Song ◽  
...  

Objective. The synaptic adhesion-like molecule (SALM) family is largely restricted to neural tissues and is involved in the regulation of neurite outgrowth and synapse formation. However, the expression of SALM3 in gastric cancer (GC) and its clinical significance remain unclear. The aim of the present study was to investigate the prognostic value of SALM3 in patients with GC.Patients and Methods. Expression of SALM3 was validated by tissue microarrays from 730 GC patients and statistically assessed for correlations with the clinical parameters and the prognosis of the patients. The transcriptional and survival data of SALM3 in GC patients were also mined through the Oncomine and Kaplan-Meier Plotter databases.Results. SALM3 is overexpressed in the tumor cells and fibroblasts of clinical GC tissues, and a high level of SALM3 was significantly associated with tumor invasive characteristics. Cox proportional hazards univariate and multivariate regression analyses revealed SALM3 expression in tumor cells or stroma as an independent prognostic factor in the overall survival rate of GC patients. Furthermore, the survival of GC patients with high SALM3 expression in both tumor cells and fibroblasts was significantly poorer than that of the other groups. Oncomine and Kaplan-Meier Plotter analyses further confirmed high levels of SALM3 expression in GC, and high levels of SALM3 expression were associated with shorter survival in patients.Conclusion. SALM3 may be a prognostic factor for GC and may potentially be a high-priority therapeutic target.


2019 ◽  
Vol 18 ◽  
pp. 153303381987513 ◽  
Author(s):  
Qiang Wang ◽  
Linyou Zhang

Background: We aimed to find the possible molecular mechanisms for the roles of microRNA-21 underlying lung cancer development. Methods: MicroRNA-21-5p inhibitor was transfected into A549 cells. Total RNA was isolated from 10 samples, including 3 in control group (A549 cells), 3 in negative control group (A549 cells transferred with microRNA-21 negative control), and 4 in SH group (A549 cells transferred with microRNA-21 inhibitor), followed by RNA sequencing. Then, differentially expressed genes were screened for negative control group versus control group, SH group versus control group, and SH group versus negative control group. Functional enrichment analyses, protein–protein interaction network, and modules analyses were conducted. Target genes of hsa-miR-21-5p and transcription factors were predicted, followed by the regulatory network construction. Results: Minichromosome maintenance 10 replication initiation factor and cell division cycle associated 8 were important nodes in protein–protein interaction network with higher degrees. Cell division cycle associated 8 was enriched in cell division biological process. Furthermore, maintenance 10 replication initiation factor and cell division cycle associated 8 were significantly enriched in cluster 1 and micro-RNA-transcription factor-target genes regulating network. In addition, transcription factor Dp family member 3 (transcription factor of maintenance 10 replication initiation factor and cell division cycle associated 8) and RAD21 cohesin complex component (transcription factor of maintenance 10 replication initiation factor) were target genes of hsa-miR-21-5p. Conclusions: Micro-RNA-21 may play a key role in lung cancer partly via maintenance 10 replication initiation factor and cell division cycle associated 8. Furthermore, microRNA-21 targeted cell division cycle associated 8 and then played roles in lung cancer via the process of cell division. Transcription factor Dp family member 3 and RAD21 cohesin complex component are important transcription factors in microRNA-21-interfered lung cancer.


2021 ◽  
Vol 2021 ◽  
pp. 1-18
Author(s):  
Lianxiang Luo ◽  
Jiating Su ◽  
Yushi Zheng ◽  
Fangfang Huang ◽  
Riming Huang ◽  
...  

Lung adenocarcinoma (LUAD) is a major subtype of lung cancer with a relatively poor prognosis, requiring novel therapeutic approaches. Great advances in new immunotherapy strategies have shown encouraging results in lung cancer patients. This study is aimed at elucidating the function of SLC2A5 in the prognosis and pathogenesis of LUAD by analyzing public databases. The differential expression of SLC2A5 in various tissues from Oncomine, GEPIA, and other databases was obtained, and SLC2A5 expression at the protein level in normal and tumor tissues was detected with the use of the HPA database. Then, we used the UALCAN database to analyze the expression of SLC2A5 in different clinical feature subgroups. Notably, in both PrognoScan and Kaplan-Meier plotter databases, we found a certain association between SLC2A5 and poor OS outcomes in LUAD patients. Studies based on the TIMER database show a strong correlation between SLC2A5 expression and various immune cell infiltrates and markers. The data analysis in the UALCAN database showed that the decreased promoter methylation level of SLC2A5 in LUAD may lead to the high expression of SLC2A5. Finally, we used the LinkedOmics database to evaluate the SLC2A5-related coexpression and functional networks in LUAD and to investigate their role in tumor immunity. These findings suggest that SLC2A5 correlated with immune infiltration can be used as a candidate diagnostic and prognostic biomarker in LUAD patients.


2021 ◽  
Author(s):  
Yin-Hai Dai ◽  
Fuping Li ◽  
Wei-Jie Kong ◽  
Xue-Qin Zhang ◽  
Mao Wang ◽  
...  

Abstract Background:The formin family proteins are main regulators of actin filaments, which play a crucial role in the migration of cells and carcinogenesis.The specific functions of the formin family proteins in breast cancer still remain unknown.To dissolve this problem,we selected four formin proteins including DAAM1,FHOD1, FMN2 and INF2 and investigated their mRNA expression and survival data in BC(breast carcinoma) patients using diverse databases.Methods:we used these databases including Oncomine, Ualcan, GEPIA 2,HumanProtein Atlas,Metascape,Kaplan-Meier plotter,cBioPortal and TIMER and the software of Cytoscape in our study.Results:DAAM1 and FMN2 were lowly expressed in BC tissues,while FHOD1 and INF2 were highly expressed in BC tissues.The expression levels of DAAM1, FMN2 and FHOD1 were relevant to major subclasses,and the mRNA level of FHOD1 was related to cancer staging.Moreover,High mRNA levels of FHOD1 and INF2 were relevant to poorer prognosis of BC patients,while low mRNA level of DAAM1 was correlated with better prognosis.we also found that there were significant associations between the expressions of DAAM1,FHOD1,FMN2 and INF2 and six types of infiltrated immune cells(B Cells,CD4+T cells,CD8+T cells, neutrophil,macrophage,and dendritic cell).Conclusions:our study indicated that FHOD1 and INF2 were potential biomarkers to identify short survival of BC patients,FMN2 was potential prognostic marker to suggest favorable survival of BC patients.


2020 ◽  
Vol 19 ◽  
pp. 153303382097750
Author(s):  
Wen-Juan Tian ◽  
Shan-Shan Liu ◽  
Bu-Rong Li

Lung cancer is one of the leading causes of cancer-related death. In recent years, there has been an increasing interest in the fields of tumor and immunity. This study focused on the possible prognostic value of immune genes in non-small cell lung cancer patients. We used The Cancer Genome Atlas (TCGA) to download gene expression data and clinical information of lung adenocarcinoma (LUAD) and lung squamous cell carcinoma (LUSC). The immune gene list was downloaded from the Immport database. We then constructed immune gene prognostic models on the basis of Cox regression analysis. We further evaluated the clinical significance of the models via survival analysis, receiver operating characteristic (ROC) curves, and independent prognostic factor analysis. Moreover, we analyzed the associations of prognostic models with both mutation burdens and neoantigens. Using the Gene Expression Omnibus (GEO) and Kaplan–Meier plotter databases, we evaluated the validity of the prognostic models. The prognostic model of LUAD included 13 immune genes, and the prognostic model of LUSC contained 10 immune genes. High-risk patients based on prognostic models had a lower 5-year survival rate than did low-risk patients. The ROC curve analysis demonstrated the prediction accuracy of the prognostic models, as the area under the curve (AUC) was 0.742, 0.707, and 0.711 for LUAD, and 0.668, 0.703, and 0.668 for LUSC, when the predicted survival times were 1, 3, and 5 years, respectively. The mutation burden analysis showed that mutation level was associated with the risk score in patients with LUAD. The analysis based on GEO and Kaplan–Meier plotter demonstrated the prognostic validity of the models. Therefore, immune gene-related models of LUAD and LUSC can predict prognosis. Further study of these genes may enable us to better distinguish between LUAD and LUSC and lead to improvement in immunotherapy for lung cancer.


2020 ◽  
Vol 29 (1) ◽  
pp. 89-99 ◽  
Author(s):  
Jun Wu

BACKGROUND: The CKLF-like MARVEL transmembrane domain-containing family (CMTM) is the protein product of at least one splice variant of each gene contained a Marvel (MAL and related proteins for vesicle trafficking and membrane link) domain, involved in a variety of cellular processes and the pathogenesis of diseases, including tumorigenesis. However, the diverse expression patterns and prognostic values of eight CMTMs have yet to be elucidated. OBJECTIVE: We analyzed the expressions and impacts on survival of different CMTM factors in BC patients to determine their potential diagnosis and prognosis values in BC. METHODS: In the current study, we examined the transcriptional and survival data of CMTMs in patients with breast carcinoma (BC) from ONCOMINE, GEPIA, Kaplan-Meier Plotter, and cBioPortal databases. RESULTS: It was found that CMTM5/7 were down-regulated, whereas CMTM1/6 were up-regulated in BC patients compared with the normal tissues. In survival analyses through the Kaplan-Meier plotter database, increased mRNA expressions of CMTM5/6/7 and decreased mRNA expression of CMTM4 were associated with better relapse-free survival (RFS) of BC patients. CONCLUSIONS: These data provided CMTM5/7 as new biomarker and prognostic factors in BC.


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