scholarly journals LncRNA SNHG10 is downregulated in non-small cell lung cancer and predicts poor survival

2020 ◽  
Author(s):  
Meng Liang ◽  
Linlin Wang ◽  
Chuanhua Cao ◽  
Shimao Song ◽  
feng wu

Abstract Background: LncRNA SNHG10 has been reported to be an oncogenic lncRNA in liver cancer. However, its roles in non-small cell lung cancer (NSCLC) remains unknown. Methods: Tumor and paired non-tumor tissues were harvested from 62 NSCLC patients. RT-qPCR was used to detected the expression of SNHG10 and miR-21 in tissues. Overexpression experiments were used to evaluate the interaction between SNHG10 or miR-21 in NSCLC cells. CCK-8 assay was used to detect the cell proliferation. Results: We observed the expression of SNHG10 was down-regulated in non-small cell lung cancer (NSCLC) compared with that in non-tumor tissues. Moreover, we found that high expression levels of SNHG10 predicted favorable survival of NSCLC patients, and the expression of miR-21 were increased in NSCLC and inversely correlated with SNHG10 expression. In NSCLC cells, overexpression of SNHG10 resulted in increased miR-21 gene methylation and decreased miR-21 expression. Moreover, overexpression of SNHG10 attenuated the enhancing effect of miR-21 overexpression on cell proliferation. Conclusions: SNHG10 may involve in NSCLC cell proliferation by regulating the miR-21 gene methylation.

2020 ◽  
Author(s):  
Meng Liang ◽  
Linlin Wang ◽  
Chuanhua Cao ◽  
Shimao Song ◽  
feng wu

Abstract Background: LncRNA SNHG10 has been reported to be an oncogenic lncRNA in liver cancer. However, its roles in non-small cell lung cancer (NSCLC) remains unknown. Methods: Tumor and paired non-tumor tissues were harvested from 62 NSCLC patients. RT-qPCR was used to detect the expression of SNHG10 and miR-21 in tissues. Overexpression experiments were used to evaluate the interaction between SNHG10 and miR-21 in NSCLC cells. CCK-8 assay was used to detect the cell proliferation. Results: We observed the expression of SNHG10 was down-regulated in non-small cell lung cancer (NSCLC) compared with that in non-tumor tissues. Moreover, we found that high expression levels of SNHG10 predicted favorable survival of NSCLC patients, and the expression of miR-21 were increased in NSCLC and inversely correlated with SNHG10 expression. In NSCLC cells, overexpression of SNHG10 resulted in increased miR-21 gene methylation and decreased miR-21 expression. Moreover, overexpression of SNHG10 attenuated the enhancing effect of miR-21 overexpression on cell proliferation. Conclusions: SNHG10 may involve in NSCLC cell proliferation by regulating the miR-21 gene methylation.


2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Meng Liang ◽  
Linlin Wang ◽  
Chuanhua Cao ◽  
Shimao Song ◽  
Feng Wu

Abstract Background LncRNA SNHG10 has been reported to be an oncogenic lncRNA in liver cancer. However, its roles in non-small cell lung cancer (NSCLC) remains unknown. Methods Tumor and paired non-tumor tissues were harvested from 62 NSCLC patients. RT-qPCR was used to detect the expression of SNHG10 and miR-21 in tissues. Overexpression experiments were used to evaluate the interaction between SNHG10 and miR-21 in NSCLC cells. CCK-8 assay was used to detect the cell proliferation. Results We observed the expression of SNHG10 was down-regulated in non-small cell lung cancer (NSCLC) compared with that in non-tumor tissues. Moreover, we found that high expression levels of SNHG10 predicted favorable survival of NSCLC patients, and the expression of miR-21 were increased in NSCLC and inversely correlated with SNHG10 expression. In NSCLC cells, overexpression of SNHG10 resulted in increased miR-21 gene methylation and decreased miR-21 expression. Moreover, overexpression of SNHG10 attenuated the enhancing effect of miR-21 overexpression on cell proliferation. Conclusions SNHG10 may involve in NSCLC cell proliferation by regulating the miR-21 gene methylation.


2020 ◽  
Author(s):  
Meng Liang ◽  
Linlin Wang ◽  
Chuanhua Cao ◽  
Shimao Song ◽  
Feng Wu

Abstract LncRNA SNHG10 has been characterized as an oncogenic lncRNA in liver cancer. By analyzing TCGA dataset we observed the downregulation of SNHG10 in non-small cell lung cancer (NSCLC), indicating its involvement in this disease. We then analyzed the role of SNHG10 in NSCLC.Tumor and paired non-tumor tissues were harvested from 62 NSCLC patients. Expression of SNHG10 and miR-21 in tissues was determined by RT-qPCR. Overexpression of SNHG10 or miR-21 in NSCLC cells was achieved and the interaction between them was analyzed. Cell proliferation was analyzed by CCK-8 assay.In this study we found that SNHG10 is downregulated in cancer tissues of NSCLC patients included in this study. High expression level of SNHG10 predicted favorable survival of NSCLC patients. Levels of miR-21 expression were increased in NSCLC and inversely correlated with SNHG10. In NSCLC cells, SNHG10 overexpression led to increased miR-21 gene methylation and decreased miR-21 expression level. In cell proliferation assay, SNHG10 overexpression attenuated the enhancing effect of miR-21 overexpression on cell proliferation. SNHG10 is downregulated in non-small cell lung cancer and predicts poor survival. It may downregulated miR-21 through methylation to suppress cancer cell proliferation.


2020 ◽  
Author(s):  
Meng Liang ◽  
Linlin Wang ◽  
Chuanhua Cao ◽  
Shimao Song ◽  
feng wu

Abstract LncRNA SNHG10 has been characterized as an oncogenic lncRNA in liver cancer. By analyzing TCGA dataset we observed the downregulation of SNHG10 in non-small cell lung cancer (NSCLC), indicating its involvement in this disease. We then analyzed the role of SNHG10 in NSCLC. Tumor and paired non-tumor tissues were harvested from 62 NSCLC patients. The expression of SNHG10 and miR-21 in tissues were determined by RT-qPCR. Overexpression of SNHG10 or miR-21 in NSCLC cells was achieved and the interaction between them was evaluated. Cell proliferation was determined by CCK-8 assay. In this study we found that SNHG10 was downregulated in cancer tissues of NSCLC patients. High expression levels of SNHG10 predicted favorable survival of NSCLC patients. The expression levels of miR-21 were increased in NSCLC and inversely correlated with SNHG10. In NSCLC cells, overexpression of SNHG10 led to increased miR-21 gene methylation and decreased the expression levels of miR-21. In cell proliferation assay, overexpression of SNHG10 attenuated the enhancing effect of overexpression of miR-21 on cell proliferation. SNHG10 was downregulated in non-small cell lung cancer and predicted poor survival. It may downregulate miR-21 through methylation to suppress cancer cell proliferation.


2019 ◽  
Vol 37 (15_suppl) ◽  
pp. e20619-e20619
Author(s):  
Maria Merino ◽  
Lara Fernández ◽  
Ana Ramirez de Molina ◽  
Juan Moreno ◽  
Gonzalo Colmenarejo ◽  
...  

e20619 Background: Non- small cell lung cancer (NSCLC) is one of the tumors with the highest mortality rate. The underlying metabolic alterations involved in its carcinogenesis are becoming more interesting. According to this, the analysis of the dysregulation of genes involved in lipid metabolism (LM) is subject to a growing research. To evaluate a profile of genes involved in lipid metabolism in NSCLC, we analyzed the correlation of this gene expression profile with different clinical-pathological variables. Methods: We performed a retrospective analysis of 22 genes related to LM in samples of NSCLC as well as clinical-pathological features. Advanced NSCLC patients enrolled from 2008 through 2015 were included. Clinical and pathological data were collected from medical reports. This study was approved in our ethical committee and all patients signed the consent inform. Samples were deparaffinated and RNA was extracted using RNeasy FFPE Kit (Qiagen Gmbh, Germany). A Taq-Man Low Density Array (Applied Biosystems) was specifically designed and gene-expression assays were performed in a HT-7900 Fast Real time PCR. RT-StatMiner software (Integromics Inc., Madison, USA) was used to detect and determine the quality control and differential expression analyses of data. Quantification of gene expression was calculated with the 2–ΔCt method. The Kaplan–Meier method was used for survival probabilities, and the log-rank test was to test differences between subgroups. Results: Ninety patients with advanced NSCLC were included. Median age was 64, 68/90 (75%) were male; 46/90 (51%) were ECOG 1; 68/90 (75%) adenocarcinoma vs 22/90 (24%) squamous; 47/90 (52%) smokers and 34% former smokers; metformine intake was presented in 9/90 (10%) and statins 24/90 (27%). In retrospective RT-PCR analysis including a lipid metabolism gene profile of 22 genes, we obtained an overexpression of 2 genes (an Acyl-CoA sintetase and a adipocine encoding gene). They were significantly correlated with overall poor survival in the multivariate analysis (table). These results were confirmed in an in silico validation using 994 NSCLC patients from TCGA study. Conclusions: This is the first study demonstrating a significant relation with a poor survival between a metabolic lipid gene profile expression and survival in advanced non- small cell lung cancer [Table: see text]


2021 ◽  
Author(s):  
Maoshu Zhu ◽  
Hui Zhang ◽  
Fuhua Lu ◽  
Zhaowei Wang ◽  
Yulong Wu ◽  
...  

Non-small cell lung cancer (NSCLC) is the most common subtype of lung cancer. Ubiquitination is closely related to the development of lung cancer. However, the biological importance of newly discovered ubiquitin specific peptidase 52 (USP52) in NSCLC remained unclear. Here, our findings identify USP52 as a novel tumor suppressor of NSCLC, the low expression of USP52 predicts a poor prognosis for NSCLC patients. This study demonstrates that USP52 inhibits cancer cell proliferation through downregulation of cyclin D1 as well as AKT/mTOR signaling pathway inhibition. Meanwhile, USP25 also suppresses NSCLC progression via enhancing PTEN stability in cancer cells, which further indicates the significance/importance of USP52 in NSCLC suppression.


2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Man Zhang ◽  
Wei Yang ◽  
Peng Wang ◽  
Yu Deng ◽  
Yu-Ting Dong ◽  
...  

AbstractThe efficacy of checkpoint immunotherapy to non-small cell lung cancer (NSCLC) largely depends on the tumor microenvironment (TME). Here, we demonstrate that CCL7 facilitates anti-PD-1 therapy for the KrasLSL−G12D/+Tp53fl/fl (KP) and the KrasLSL−G12D/+Lkb1fl/fl (KL) NSCLC mouse models by recruiting conventional DC 1 (cDC1) into the TME to promote T cell expansion. CCL7 exhibits high expression in NSCLC tumor tissues and is positively correlated with the infiltration of cDC1 in the TME and the overall survival of NSCLC patients. CCL7 deficiency impairs the infiltration of cDC1 in the TME and the subsequent expansion of CD8+ and CD4+ T cells in bronchial draining lymph nodes and TME, thereby promoting tumor development in the KP mouse model. Administration of CCL7 into lungs alone or in combination with anti-PD-1 significantly inhibits tumor development and prolongs the survival of KP and KL mice. These findings suggest that CCL7 potentially serves as a biomarker and adjuvant for checkpoint immunotherapy of NSCLC.


2020 ◽  
Vol 106 (3) ◽  
pp. 223-228
Author(s):  
Tao Zhu ◽  
Zhaojia Gao ◽  
Kai Yuan ◽  
Yong Wang

Purpose: To investigate the expression profile and prognostic value of RAD21 in patients with non-small cell lung cancer (NSCLC). Methods: A tissue microarray (TMA) containing 60 paired NSCLC tissues and peritumor tissues was purchased and another TMA containing 140 NSCLC tissues was constructed. Then, immunohistochemical staining was performed and scored. Finally, the expression profile and prognostic value of RAD21 were evaluated. Results: RAD21 was predominantly detected in the nucleus of tumor and peritumor cells. RAD21 was more highly expressed in tumor tissues compared to peritumor tissues. High RAD21 expression was correlated with more lymph node metastases and advanced pathological stage, but not with any other clinicopathological features. High RAD21 expression led to worsened overall survival (OS) and was an independent prognostic factor for worsened OS in NSCLC, especially in stage II–III. Conclusion: High RAD21 expression indicates poor survival in patients with NSCLC. RAD21 may become a novel prognostic biomarker and therapeutic target in patients with NSCLC.


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