scholarly journals Down-regulation of miRNA-30c predicts poor prognosis in Colorectal Cancer patients

2016 ◽  
Vol 24 (4) ◽  
pp. 369-375
Author(s):  
Liu Bin ◽  
Meng Zhang ◽  
Liu Lixia ◽  
Zang Aimin ◽  
Yang Hua ◽  
...  

Abstract Background: MiRNA-30c was a tumor suppressor in several human cancers, however, its association with clinicopathological features and prognosis in colorectal cancer (CRC) is unclear. Materials and Methods: The expression level of miRNA-30c in 192 pairs of colorectal cancer and adjacent normal tissues was detected by Quantitative RT-PCR, the association between miRNA-30c expression and clinical characteristics and prognosis were statistically analyzed. Results: miRNA-30c was significantly lower in CRC tissues specimens compared with matched normal adjacent tissue (P<0.001). MiRNA-30c was positively correlated with tumor size (P=0.012), TMN stage (P=0.002) and lymph node metastasis (P=0.004). The univariate analysis showed CRC patients with low miRNA-30c had distinctly shorter overall survival (P<0.001) than patients with high miRNA-30c expression level. The multivariate analysis was performed and informed that low miRNA-30c expression (P<0.001) might be an independent prognostic predictor for poor prognosis. Conclusion: miRNA-30c could predict the prognosis of colorectal cancer which is helpful to choose reasonable treatment measures.

Tumor Biology ◽  
2017 ◽  
Vol 39 (3) ◽  
pp. 101042831769454 ◽  
Author(s):  
Peili Zhang ◽  
Zhigui Zuo ◽  
Wenjing Shang ◽  
Aihua Wu ◽  
Ruichun Bi ◽  
...  

Circular RNA, a class of non-coding RNA, is a new group of RNAs and is related to tumorigenesis. Circular RNAs are suggested to be ideal candidate biomarkers with potential diagnostic and therapeutic implications. However, little is known about their expression in human colorectal cancer. In our study, differentially expressed circular RNAs were detected using circular RNA array in paired tumor and adjacent non-tumorous tissues from six colorectal cancer patients. Expression levels of selected circular RNAs (hsa_circRNA_103809 and hsa_circRNA_104700) were measured by real-time polymerase chain reaction in 170 paired colorectal cancer samples for validation. Statistical analyses were conducted to investigate the association between hsa_circRNA_103809 and hsa_circRNA_104700 expression levels and respective patient clinicopathological features. Receiver operating characteristic curve was constructed to evaluate the diagnostic values. Our results indicated that there were 125 downregulated and 76 upregulated circular RNAs in colorectal cancer tissues compared with normal tissues. We also first demonstrated that the expression levels of hsa_circRNA_103809 ( p < 0.0001) and hsa_circRNA_104700 ( p = 0.0003) were significantly lower in colorectal cancer than in normal tissues. The expression level of hsa_circRNA_103809 was significantly correlated with lymph node metastasis ( p = 0.021) and tumor-node-metastasis stage ( p = 0.011), and the expression level of hsa_circRNA_104700 was significantly correlated with distal metastasis ( p = 0.036). The area under receiver operating characteristic curves of hsa_circRNA_103809 and hsa_circRNA_104700 were 0.699 ( p < 0.0001) and 0.616 ( p < 0.0001), respectively. In conclusion, these results suggest that hsa_circRNA_103809 and hsa_circRNA_104700 may be potentially involved in the development of colorectal cancer and serve as potential biomarkers for the diagnosis of colorectal cancer.


2011 ◽  
Vol 131 (6) ◽  
pp. 1307-1317 ◽  
Author(s):  
Tomonori Akagi ◽  
Naoki Hijiya ◽  
Masafumi Inomata ◽  
Norio Shiraishi ◽  
Masatsugu Moriyama ◽  
...  

2021 ◽  
Vol 11 ◽  
Author(s):  
Yixuan Li ◽  
Qian Cai ◽  
Ximing Shen ◽  
Xiaoting Chen ◽  
Zhong Guan

The immune checkpoint molecule, B7-H3, which belongs to the B7 family, has been shown to be overexpressed in various cancers. Its role in tumors is not well defined, and many studies suggest that it is associated with poor clinical outcomes. The effect of B7-H3 on laryngeal cancer has not been reported. This study investigated the expression of B7-H3 in laryngeal squamous cell carcinoma (LSCC), and its relationship with clinicopathological factors and prognosis of LSCC patients. The gene expression quantification data and clinical data of LSCC retrieved from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) database were analyzed to determine the diagnostic and prognostic roles of B7-H3. Quantitative real-time polymerase chain reaction (qRT-PCR) was then performed to determine the gene expression level of B7-H3 between LSCC tissues and paired normal adjacent tissues. In addition, TCGA RNA-seq data was analyzed to evaluate the expression level of B7 family genes. Next, the protein expression of B7-H3 and CD8 in LSCC was determined using immunohistochemistry and immunofluorescence. qRT-PCR results showed that the expression level of B7-H3 mRNA was significantly higher in LSCC tissues than in adjacent normal tissues. Similar results were obtained from the TCGA analysis. The expression of B7-H3 was significantly associated with T stage, lymph node metastasis, and pathological tumor node metastasis (TNM) stage, and it was also an independent factor influencing the overall survival time (OS) of patients with LSCC. In addition, B7-H3 was negatively correlated with CD8+T cells. These results show that B7-H3 is upregulated in LSCC. Therefore, B7-H3 may serve as a biomarker of poor prognosis and a promising therapeutic target in LSCC.


2020 ◽  
Author(s):  
Wei Chen ◽  
Jun-Wen Ye ◽  
Xiao-ping Tan ◽  
Yan Zhang ◽  
Jing-Lin Liang ◽  
...  

Abstract Objective: To observe the factors related to survival and prognosis of patients with resectable stage T4 colorectal cancer. Methods : 148 patients with resectable stage T4 colorectal cancer who underwent surgery in the first Affiliated Hospital of Sun Yat-sen University between August, 1994 and December, 2005 were retrospectively analyzed. Univariate and multivariate analyses of associations between clinicopathological variables and survival were analyzed using the Cox regression model. Results: At the end of December of 2010 or death, the 5-year and 10 years OS rates were 49.0% and 32.2% respectively, the median OS was 25 months. The disease free survival rates (DFS) at 5 and 10 years were 44.2% and 30.3% respectively. In univariate analysis, patients with postoperative pathology lymph node metastasis was associated with the prognosis of patients with OS (all P< 0.01), postoperative adjuvant therapy failed to improve OS and DFS (P>0.05). Postoperative pathology lymph node metastasis was associated with DFS too (all P< 0.01). In multivariate analysis, postoperative pathology lymph node metastasis was independent factor affected OS and DFS in colorectal cancer patients. Conclusion: Postoperative prognosis of T4 colorectal cancer patients is poor, postoperative pathology lymph node positive was an independent factor affect OS and DFS.


2022 ◽  
Vol 12 ◽  
Author(s):  
Cong Yu ◽  
Haining Qi ◽  
Yanhui Zhang ◽  
Wen Zhao ◽  
Guoying Wu

Uterine corpus endometrial carcinoma (UCEC) is a common malignant tumor of the female reproductive system with poor prognosis in advanced, recurrent, and metastatic cases. Identification of reliable molecular markers will help in the development of clinical strategies for early detection, diagnosis, and intervention. Gamma-glutamyl hydrolase (GGH) is a key enzyme in folate metabolism pathway. High expression of GGH is associated with severe clinicopathological features and poor prognosis of several cancers. High GGH expression is also related to cell resistance to antifolate drugs such as methotrexate. In this study we focused on the prognostic value of immunohistochemical GGH expression level in UCEC tissue and RNA-seq data from The Cancer Genome Atlas to establish associations with clinical features and outcomes. Further, we conducted comprehensive bioinformatics analyses to identify and functionally annotate differentially expressed genes (DEGs) associated with UCEC upregulation and assessed the effects of upregulation on immune infiltration. Both GGH mRNA and protein expression levels were elevated in tumor tissues, and higher expression was significantly associated with advanced clinicopathological features and poor prognosis by univariate analysis. Further multivariate analysis identified elevated GGH expression as an independent risk factor for poor outcome. Nomograms including GGH expression yielded a c-index for disease-specific survival prediction of 0.884 (95% confidence interval: 0.861–0.907). A total of 520 DEGs (111 upregulated and 409 downregulated) were identified between high and low GGH expression groups. Analysis using Gene ontology, Kyoto Encyclopedia of Genes and Genomes pathway, Gene set enrichment analysis, and protein‒protein interaction indicated significant associations of altered GGH expression with cell proliferation, immune response, and the occurrence and development of UCEC tumors. Finally, GGH expression level was associated with high Th2 cell and low natural killer CD56bright cell infiltration. Collectively, these findings indicate that GGH drives UCEC progression and could be a useful biomarker for survival prediction as well as a therapeutic target.


2007 ◽  
Vol 380 (1-2) ◽  
pp. 208-212 ◽  
Author(s):  
Barbara Mroczko ◽  
Magdalena Groblewska ◽  
Urszula Wereszczyńska-Siemiątkowska ◽  
Bogna Okulczyk ◽  
Bogusław Kędra ◽  
...  

2020 ◽  
Author(s):  
Weixia Wang ◽  
Kui Lu ◽  
Limei Wang ◽  
Hongyan Jing ◽  
Weiyu Pan ◽  
...  

Abstract Aim: The purpose of this study was to compare clinicopathological features of patients with non-schistosomal and schistosomal colorectal cancer to explore the effect of schistosomasis on colorectal cancer (CRC) patients` clinical outcomes. Methods: 351 cases of CRC were retrospectively analyzed in this study. Survival curves were constructed by using the Kaplan-Meier (K-M) method. Univariate and multivariate Cox proportional hazard regression models were performed to identify associations with outcome variables.Results: Colorectal cancer patients with schistosomiasis (CRC-S) were significantly older (P<0.001) than the patients without schistosomiasis (CRC-NS). However, there were no significant differences between CRC-S and CRC-NS patients in other clinicopathological features. Schistosomiasis were associated with adverse overall survival (OS) upon K-M analysis (P=0.0277). By univariate and multivariate analysis, gender (P=0.003), TNM stage (P<0.001), schistosomiasis (P=0.025), lymphovascular invasion (P=0.030) and lymph nodes positive for CRC (P<0.001) were all independent predictors in the whole cohort. When patients were stratified according to clinical stage and lymph node metastasis state. Schistosomiasis was also an independent predictors in patients with stage Ⅲ-Ⅳ tumors and in patients with lymph node metastasis, but not in patients with stage Ⅰ-Ⅱ tumors and in patients without lymph node metastasis.Conclusion: Schistosomiasis was significantly correlated with OS and it was an independent prognostic factor for OS in the whole cohort. When patients were stratified according to clinical stage and lymph node metastasis state, schistosomiasis was still an independent unfavorably prognosis factor for OS in patients with stage Ⅲ-Ⅳ tumors or patients with lymph node metastasis.


2016 ◽  
Vol 11 (1) ◽  
pp. 287-292
Author(s):  
Xiao-yang Liu ◽  
Hua Liu ◽  
Lin Gu ◽  
Hai-lun Zheng

AbstractObjectiveTo explore the correlation between the enhancer of zeste homolog 2 (EZH2) expression and clinicopathological features in colorectal cancer patients.MethodsA total of sixty-six patients with colorectal carcinoma were admitted to our general surgery department from January 2011 to December 2014. The EZH2 expression levels in the cancer tissues (CTs) from the 66 patients with colorectal cancer and those in distant normal colorectal tissues from 30 cases were examined through immunohistochemistry and western blotting assays. The relationship between the expression of EZH2 and the clinicopathological features and prognosis of the patients was analyzed.ResultsEZH2 in colorectal carcinoma tissues is granularly brown, predominantly expressed and diffused in the nuclei of tumor cells. Positive rates of EZH2 in intestinal CTs and in distant normal intestinal tissues are 62.12% (41/66) and 6.67% (2/30), respectively with significant difference (P < 0.05). Western blotting also confirmed its elevated expression in colorectal CTs. EZH2-positive expression in CTs was related to degree of differentiation, Duke staging, and tumor size (P < 0.05) but was unrelated to the patient’s gender, age or tumor site (P = 0.05). The 3-year progression-free survival (PFS) rates of the EZH2-positive group and the EZH2-negative group were 43.8% and 67.5%, respectively. The risk of disease progression of the EZH2-positive patients in the follow-up period was significantly higher than that of the EZH2-negative patients (HR = 2.49, 95% CI = 1.04–4.80, P < 0.05).ConclusionEZH2 is closely related to colorectal carcinoma development and disease progression, and thus could be used as a tumor biomarker that may indicate prognosis.


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