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https://www.readbyqxmd.com/read/29138807/role-of-lasp-1-a-novel-sox9-transcriptional-target-in-the-progression-of-lung-cancer
#1
Jianguang Shi, Jing Guo, Xinjian Li
Lung cancer accounts for most cancer-related deaths worldwide. However, the underlying mechanism by which it mediates the progression of lung cancer remains unclear. Expression of LASP-1 (LIM and SH3 protein 1) was evaluated in lung cancer tissues and tumor-adjacent normal tissues using immunohistochemistry and western blotting. Functional studies have shown that siRNA-mediated silencing of LASP-1 in human lung cancer cells and reduced cell proliferation, migration, and invasion. Flow cytometry and immunofluorescence staining also revealed that rate of cell apoptosis was increased after knockdown of expression of LASP-1, thereby suggesting that LASP-1 may function as an oncogene during lung cancer progression...
November 10, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/29137254/quaking-5-suppresses-aggressiveness-of-lung-cancer-cells-through-inhibiting-%C3%AE-catenin-signaling-pathway
#2
Xuexia Zhou, Xuebing Li, Cuiyun Sun, Cuijuan Shi, Dan Hua, Lin Yu, Yanjun Wen, Feng Hua, Qian Wang, Qinghua Zhou, Shizhu Yu
Quaking-5 (QKI-5) belongs to the STAR (signal transduction and activation of RNA) family of RNA binding proteins and functions as a tumor suppressor in several human malignancies. In this study, we attempt to elucidate the role of QKI-5 in the pro-metastasis processes of lung cancer (LC) cells and the underlying mechanisms. We confirmed that QKI-5 was decreased in human LC tissues and cell lines, especially in high-metastatic cells. Moreover, QKI expression was positively correlated with LC patients' survival...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29133127/knockdown-of-lncrna-pvt1-inhibits-tumorigenesis-in-non-small-cell-lung-cancer-by-regulating-mir-497-expression
#3
Dong Guo, Yanli Wang, Kewei Ren, Xinwei Han
Plasmacytoma variant translocation1 (PVT1) was reported to be upregulated in non-small-cell lung cancer (NSCLC) tissues, serve as a promising biomarker for diagnosis and prognosis of NSCLC, and promoted NSCLC cell proliferation. However, the detailed molecular mechanism of PVT1 involved in the pathogenesis and development of NSCLC remains largely unknown. In this study, the expression levels of PVT1 and miR-497 in NSCLC cells were determined by qRT-PCR. Cell viability, invasion and apoptosis were detected by MTT assay, cell invasion assay and flow cytometry analysis, respectively...
November 10, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/29127420/genome-wide-analyses-of-long-noncoding-rna-expression-profiles-in-lung-adenocarcinoma
#4
Zhenzi Peng, Jun Wang, Bin Shan, Fulai Yuan, Bin Li, Yeping Dong, Wei Peng, Wenwen Shi, Yuanda Cheng, Yang Gao, Chunfang Zhang, Chaojun Duan
LncRNAs have emerged as a novel class of critical regulators of cancer. We aimed to construct a landscape of lncRNAs and their potential target genes in lung adenocarcinoma. Genome-wide expression of lncRNAs and mRNAs was determined using microarray. qRT-PCR was performed to validate the expression of the selected lncRNAs in a cohort of 42 tumor tissues and adjacent normal tissues. R and Bioconductor were used for data analysis. A total of 3045 lncRNAs were differentially expressed between the paired tumor and normal tissues (1048 up and 1997 down)...
November 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29126163/identification-of-novel-cancer-biomarkers-of-prognostic-value-using-specific-gene-regulatory-networks-grn-a-novel-role-of-rad51ap1-for-ovarian-and-lung-cancers
#5
Dimple Chudasama, Valeria Bo, Marcia Hall, Vladimir Anikin, Jeyarooban Jeyaneethi, Jane Gregory, George Pados, Allan Tucker, Amanda Harvey, Ryan Pink, Emmanouil Karteris
To date, microarray analyses have led to the discovery of numerous individual "molecular signatures" associated with specific cancers. However, there are serious limitations for the adoption of these multi-gene signatures in the clinical environment for diagnostic or prognostic testing as studies with more power need to be carried out. This may involve larger richer cohorts and more advanced analyses.In this study, we conduct analyses -based on GRN- to reveal distinct and common biomarkers across cancer types...
November 8, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/29080690/circulating-long-non-coding-rna-afap1-as1-is-a-potential-diagnostic-biomarker-for-non-small-cell-lung-cancer
#6
Wei Li, Na Li, Xinmei Kang, Ke Shi
BACKGROUND: Recent studies have indicated that long non-coding RNA actin filament-associated protein 1 antisense RNA 1 (lncRNA AFAP1-AS1) was increased in non-small cell lung cancer and associated with unfavorable patient prognosis. AFAP1-AS1 also participates in promoting invasion and metastasis in non-small cell lung cancer cells. However, the diagnosis value of serum AFAP1-AS1 in non-small cell lung cancer was unclear. In this study, we aimed to explore whether circulating AFAP1-AS1 can be used as a diagnostic biomarker for non-small cell lung cancer...
October 30, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29069717/integrated-analysis-of-dosage-effect-lncrnas-in-lung-adenocarcinoma-based-on-comprehensive-network
#7
Yunzhen Wei, Zichuang Yan, Cheng Wu, Qiang Zhang, Yinling Zhu, Kun Li, Yan Xu
Accumulating evidences indicate that cancer-related lncRNAs occur frequent somatic copy number alternation (SCNA). Although individual SCNA lncRNAs have been implicated in tumor biology, their regulatory mechanism has not been assessed in a systematic way. In order to explore the expression characteristics and biological functions of SCNA lncRNAs in cancer, we built a computational framework based on lncRNA expression profiles, lncRNA copy numbers and dosage sensitivity score (DSS). First, we found that the lncRNAs with different DSS were involved in distinct biological processes, while those with the same DSS had similar functions...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050246/nrf2-regulated-metabolic-gene-signature-as-a-prognostic-biomarker-in-non-small-cell-lung-cancer
#8
Akhileshwar Namani, Qin Qin Cui, Yihe Wu, Hongyan Wang, Xiu Jun Wang, Xiuwen Tang
Mutations in Kelch-like ECH-associated protein 1 (KEAP1) cause the aberrant activation of nuclear factor erythroid-derived 2-like 2 (NRF2), which leads to oncogenesis and drug resistance in lung cancer cells. Our study was designed to identify the genes involved in lung cancer progression targeted by NRF2. A series of microarray experiments in normal and cancer cells, as well as in animal models, have revealed regulatory genes downstream of NRF2 that are involved in wide variety of pathways. Specifically, we carried out individual and combinatorial microarray analysis of KEAP1 overexpression and NRF2 siRNA-knockdown in a KEAP1 mutant-A549 non-small cell lung cancer (NSCLC) cell line...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29038488/mcm2-regulated-functional-networks-in-lung-cancer-by-multi-dimensional-proteomic-approach
#9
Chantal Hoi Yin Cheung, Chia-Lang Hsu, Kai-Pu Chen, Siao-Ting Chong, Chang-Hsun Wu, Hsuan-Cheng Huang, Hsueh-Fen Juan
DNA replication control is vital for maintaining genome stability and the cell cycle, perhaps most notably during cell division. Malignancies often exhibit defective minichromosome maintenance protein 2 (MCM2), a cancer proliferation biomarker that serves as a licensing factor in the initiation of DNA replication. MCM2 is also known to be one of the ATPase active sites that facilitates conformational changes and drives DNA unwinding at the origin of DNA replication. However, the biological networks of MCM2 in lung cancer cells via protein phosphorylation remain unmapped...
October 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29029488/integrated-analysis-of-competing-endogenous-rna-network-revealing-lncrnas-as-potential-prognostic-biomarkers-in-human-lung-squamous-cell-carcinoma
#10
Jing Sui, Si-Yi Xu, Jiali Han, Song-Ru Yang, Cheng-Yun Li, Li-Hong Yin, Yue-Pu Pu, Ge-Yu Liang
Accumulating evidence shows the important role of long non-coding RNAs (lncRNAs) in competing endogenous RNA (ceRNA) networks for predicting survival in tumor patients. However, prognostic biomarkers for lung squamous cell carcinoma (LUSC) are still lacking. The objective of this study is to identify a lncRNA signature for evaluation of overall survival (OS) in 474 LUSC patients from The Cancer Genome Atlas (TCGA) database. A total of 474 RNA sequencing profiles in LUSC patients with clinical data were obtained, providing a large sample of RNA sequencing data, and 83 LUSC-specific lncRNAs, 26 miRNAs, and 85 mRNAs were identified to construct the ceRNA network (fold change>2, P<0...
September 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29028092/long-non-coding-rna-ror-is-a-novel-prognosis-factor-associated-with-non-small-cell-lung-cancer-progression
#11
C-H Qu, Q-Y Sun, F-M Zhang, Y-M Jia
OBJECTIVE: The aim of the present study was to determine the expression levels of long intergenic non-protein coding RNA, regulator of reprogramming (linc-ROR) in non-small-cell lung cancer (NSCLC) patients and to further explore the prognostic value of this lncRNA. PATIENTS AND METHODS: In our investigation, we determined the expression of linc-ROR in human NSCLC tissues and matched normal lung tissues by quantitative Real-time-PCR analysis. Also, correlations between linc-ROR expression and the clinicopathological features were evaluated...
September 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28991240/polypharmacology-based-ceritinib-repurposing-using-integrated-functional-proteomics
#12
Brent M Kuenzi, Lily L Remsing Rix, Paul A Stewart, Bin Fang, Fumi Kinose, Annamarie T Bryant, Theresa A Boyle, John M Koomen, Eric B Haura, Uwe Rix
Targeted drugs are effective when they directly inhibit strong disease drivers, but only a small fraction of diseases feature defined actionable drivers. Alternatively, network-based approaches can uncover new therapeutic opportunities. Applying an integrated phenotypic screening, chemical and phosphoproteomics strategy, here we describe the anaplastic lymphoma kinase (ALK) inhibitor ceritinib as having activity across several ALK-negative lung cancer cell lines and identify new targets and network-wide signaling effects...
October 9, 2017: Nature Chemical Biology
https://www.readbyqxmd.com/read/28990092/elevated-expression-of-satb1-is-involved-in-pancreatic-tumorigenesis-and-is-associated-with-poor-patient-survival
#13
Lei Guo, Jianjiang Zheng, Tao Yu, Yuequan Liu, Lukun Duo
Special AT‑rich sequence‑binding protein 1 (SATB1) is a master chromatin organizer which has been reported to be implicated in tumor progression in breast and lung cancer. However, its functions in pancreatic tumorigenesis have yet to be elucidated. In the present study, the involvement of SATB1 in pancreatic cancer development was investigated in human BxPC‑3 pancreatic adenocarcinoma cells. Short hairpin (sh)RNA was used to stably downregulate SATB1 expression, and functional assays, including cell proliferation, colony formation, soft agar and migration assays, were performed in vitro...
December 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28977959/long-non-coding-rna-tug1-as-a-potential-prognostic-biomarker-in-human-cancers-a-meta-analysis
#14
Peng-Ju Ma, Qing-Kai Guan, Lei Meng, Nan Qin, Jia Zhao, Bao-Zhe Jin
LncRNA taurine upregulated gene 1 (TUG1) is reportedly dysregulated in various cancers. We performed this meta-analysis to clarify the usefulness of TUG1 as a prognostic marker in malignant tumors. The PubMed, Medline, OVID, Cochrane Library, and Web of Science databases were searched from inception to Jan 11, 2017. Hazard ratios (HRs) and 95% confidence intervals (CIs) were calculated to explore the relationship between TUG1 expression and overall survival (OS). Odds ratios (ORs) were calculated to assess the association between TUG1 expression and pathological parameters...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28977863/clinical-roles-of-the-aberrantly-expressed-lncrnas-in-lung-squamous-cell-carcinoma-a-study-based-on-rna-sequencing-and-microarray-data-mining
#15
Wen-Jie Chen, Rui-Xue Tang, Rong-Quan He, Dong-Yao Li, Liang Liang, Jiang-Hui Zeng, Xiao-Hua Hu, Jie Ma, Shi-Kang Li, Gang Chen
Lung squamous cell carcinoma (LUSC) accounts for a significant proportion of lung cancer and there have been few therapeutic alternatives for recurrent LUSC due to the lack of specific driver molecules. To investigate the prospective role of lncRNAs in the tumorigenesis and progression of LUSC, the aberrantly expressed lncRNAs were calculated based on The Cancer Genome Atlas RNA-seq data. Of 7589 lncRNAs with 504 LUSC cases, 884 lncRNAs were identified as being aberrantly expressed (|log2 fold change| >2 and adjusted P<0...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28976505/pandar-a-pivotal-cancer-related-long-non-coding-rna-in-human-cancers
#16
REVIEW
Jinglin Li, Zhenglong Li, Wangyang Zheng, Xinheng Li, Zhidong Wang, Yunfu Cui, Xingming Jiang
Long non-coding RNAs (lncRNAs), non-protein-coding RNAs that are more than 200 nucleotides in length, have been demonstrated to play a vital role in the pathophysiology of human diseases, particularly in tumorigenesis and progression of cancers. Dysregulation of lncRNAs, which serve as either oncogenes or tumor suppressor genes, is involved in diverse cellular processes, such as proliferation, dedifferentiation, migration, invasion and anti-apoptosis. Promoter of CDKN1A antisense DNA damage-activated RNA (PANDAR), which was recently found to manifest aberrant expression in various malignancies including non-small cell lung cancer, hepatocellular carcinoma, colorectal cancer and gastric cancer, is a novel cancer-related lncRNA...
October 24, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28975987/long-non-coding-rna-loc344887-is-a-potential-prognostic-biomarker-in-non-small-cell-lung-cancer
#17
B Wu, X-J Zhang, X-G Li, L-S Jiang, F He
OBJECTIVE: Long non-coding RNA NmrA-like family domain containing 1 pseudogene (Loc344887) has been shown to be aberrantly expressed in non-small cell lung cancer (NSCLC). However, the biological function of Loc344887 in NSCLC remains unknown. The present study aimed to explore the prognosis value of Loc344887 in NSCLC patients. PATIENTS AND METHODS: Quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was used to detect the expression level of Loc344887 in NSCLC tissues and adjacent non-tumor lung tissues...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28960757/lncrna-sox2-ot-is-a-novel-prognostic-biomarker-for-osteosarcoma-patients-and-regulates-osteosarcoma-cells-proliferation-and-motility-through-modulating-sox2
#18
Zhi Wang, Meiyun Tan, Ge Chen, Zhong Li, Xiaobo Lu
Long noncoding RNA (LncRNA) SOX2 overlapping transcript (SOX2-OT) has been shown to serve an oncogenic role in human lung cancer, hepatocellular carcinoma, and gastric cancer. However, the clinical significance and biological function of lncRNA SOX2-OT in osteosarcoma are still unclear. LncRNA SOX2-OT expression was measured in osteosarcoma tissues and cell lines. Loss-of-function and gain-of-function studies were performed to observe the effects of lncRNA SOX2-OT on osteosarcoma cells proliferation, migration, invasion, and expressions of cancer stem cell biomarker...
November 2017: IUBMB Life
https://www.readbyqxmd.com/read/28949095/differential-protein-coding-gene-and-long-noncoding-rna-expression-in-smoking-related-lung-squamous-cell-carcinoma
#19
Shicheng Li, Xiao Sun, Shuncheng Miao, Jia Liu, Wenjie Jiao
BACKGROUND: Cigarette smoking is one of the greatest preventable risk factors for developing cancer, and most cases of lung squamous cell carcinoma (lung SCC) are associated with smoking. The pathogenesis mechanism of tumor progress is unclear. This study aimed to identify biomarkers in smoking-related lung cancer, including protein-coding gene, long noncoding RNA, and transcription factors. METHODS: We selected and obtained messenger RNA microarray datasets and clinical data from the Gene Expression Omnibus database to identify gene expression altered by cigarette smoking...
November 2017: Thoracic Cancer
https://www.readbyqxmd.com/read/28946875/overexpression-of-lncrna-igfbp4-1-reprograms-energy-metabolism-to-promote-lung-cancer-progression
#20
Binyao Yang, Lisha Zhang, Yi Cao, Shuai Chen, Jun Cao, Di Wu, Jiansong Chen, Huali Xiong, Zihua Pan, Fuman Qiu, Jinbin Chen, Xiaoxuan Ling, Maosheng Yan, Suli Huang, Shiyu Zhou, Tiegang Li, Lei Yang, Yunchao Huang, Jiachun Lu
BACKGROUND: Reprogrammed energy metabolism as an emerging hallmark of cancer has recently drawn special attention since it facilitate cell growth and proliferation. Recently, long noncoding RNAs (lncRNAs) have been served as key regulators implicated in tumor development and progression by promoting proliferation, invasion and metastasis. However, the associations of lncRNAs with cellular energy metabolism in lung cancer (LC) need to be clarified. METHODS: Here, we conducted bioinformatics analysis and found insulin-like growth factor binding protein 4-1 (IGFBP4-1) as a new candidate lncRNA located in the upstream region of IGFBP4 gene...
September 25, 2017: Molecular Cancer
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