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Mengwei Ni, Xinkui Liu, Jiarui Wu, Dan Zhang, Jinhui Tian, Ting Wang, Shuyu Liu, Ziqi Meng, Kaihuan Wang, Xiaojiao Duan, Wei Zhou, Xiaomeng Zhang
Background and Objective: Non-small cell lung cancer (NSCLC) accounts for 80-85% of all patients with lung cancer and 5-year relative overall survival (OS) rate is less than 20%, so that identifying novel diagnostic and prognostic biomarkers is urgently demanded. The present study attempted to identify potential key genes associated with the pathogenesis and prognosis of NSCLC. Methods: Four GEO datasets (GSE18842, GSE19804, GSE43458, and GSE62113) were obtained from the Gene Expression Omnibus (GEO) database...
2018: Frontiers in Genetics
Guangda Yang, Qianya Chen, Jieming Xiao, Hailiang Zhang, Zhichao Wang, Xiangan Lin
Background: This study was performed to identify disease-related genes and analyze prognostic values in nonsmoking females with non-small cell lung carcinoma (NSCLC). Materials and methods: Gene expression profile GSE19804 was downloaded from the Gene Expression Omnibus (GEO) database and analyzed by using GEO2R. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes were used for the functional and pathway enrichment analysis. Then, the Search Tool for the Retrieval of Interacting Genes, Cytoscape, and Molecular Complex Detection were used to construct the protein-protein interaction (PPI) network and identify hub genes...
2018: Cancer Management and Research
Philip Friedlander, Kevin Wood, Karl Wassmann, Alan M Christenfeld, Nina Bhardwaj, William K Oh
BACKGROUND: Anti-CTLA-4 immune checkpoint blockade is associated with immune-related adverse events (irAEs). Grade 3-4 diarrhea/colitis is the most frequent irAE requiring treatment discontinuation. Predicting high-risk diarrhea/colitis patients may facilitate early intervention, limit irAE severity, and extend treatment duration. No biomarkers currently predict for anti-CTLA-4 immunotherapy related severe diarrhea. METHODS: Whole-blood was collected pre-treatment and 30 days post-treatment initiation from patients with stage III or IV unresectable melanoma who received 15 mg/kg tremelimumab at 90 day intervals in two clinical trials...
September 18, 2018: Journal for Immunotherapy of Cancer
Jiwei Guo, Dan Jin, Yan Wu, Lijuan Yang, Jing Du, Kaikai Gong, Weiwei Chen, Juanjuan Dai, Shuang Miao, Sichuan Xi
Cisplatin (DDP) resistance has become the leading cause of mortality in non-small cell lung cancer (NSCLC). miRNA dysregulation significantly contributes to tumor progression. In this study, we found that miR-495 was significantly downregulated in lung cancer tissue specimens. This study aimed to elucidate the functions, direct target genes, and molecular mechanisms of miR-495 in lung cancer. miR-495 downregulated its substrate UBE2C through direct interaction with UBE2C 3'- untranslated region. UBE2C is a proto-oncogene activated in lung cancer; however, its role in chemotherapeutic resistance is unclear...
August 23, 2018: EBioMedicine
Enrico Derenzini, Patrizia Mondello, Tatiana Erazo, Ana Portelinha, Yuxuan Liu, Mary Scallion, Zahra Asgari, John Philip, Patrick Hilden, Debora Valli, Alessandra Rossi, Hakim Djaballah, Ouathek Ouerfelli, Elisa de Stanchina, Venkatraman E Seshan, Ronald C Hendrickson, Anas Younes
The phosphatidylinositol 3 kinase (PI3K)-glycogen synthase kinase β (GSK3β) axis plays a central role in MYC-driven lymphomagenesis, and MYC targeting with bromodomain and extraterminal protein family inhibitors (BETi) is a promising treatment strategy in lymphoma. In a high-throughput combinatorial drug screening experiment, BETi enhance the antiproliferative effects of PI3K inhibitors in a panel of diffuse large B cell lymphoma (DLBCL) and Burkitt lymphoma cell lines. BETi or MYC silencing upregulates several PI3K pathway genes and induces GSK3β S9 inhibitory phosphorylation, resulting in increased β-catenin protein abundance...
August 21, 2018: Cell Reports
Jun Zhang, Xinyu Liu, Guanzhen Yu, Lei Liu, Jiejun Wang, Xiaoyu Chen, Yuhai Bian, Yuan Ji, Xiaoyan Zhou, Yinan Chen, Jun Ji, Zhen Xiang, Lei Guo, Jingyuan Fang, Yihong Sun, Hui Cao, Zhenggang Zhu, Yingyan Yu
This study explored potential biomarkers associated with Lauren classification of gastric cancer. We screened microarray datasets on gastric cancer with information of Lauren classification in gene expression omnibus (GEO) database, and compared differentially expressing genes between intestinal-type or diffuse-type gastric cancer. Four sets of microarray data (GSE2669, GSE2680, GDS3438, and GDS4007) were enrolled into analysis. By differential gene analysis, UBE2C, CDH1, CENPF, ERO1L, SCD, SOX9, CKS1B, SPP1, MMP11, and ANLN were identified as the top genes related to intestinal-type gastric cancer, and MGP, FXYD1, FAT4, SIPA1L2, MUC5AC, MMP15, RAB23, FBLN1, ANXA10, and ADH1B were genes related to diffuse-type gastric cancer...
2018: Frontiers in Pharmacology
Jiwei Guo, Yan Wu, Jing Du, Lijuan Yang, Weiwei Chen, Kaikai Gong, Juanjuan Dai, Shuang Miao, Dan Jin, Sichuan Xi
The roles of aberrantly regulated autophagy in human malignancy and the mechanisms that initiate and sustain the repression of autophagy in carcinogenesis are less well defined. Activation of the oncogene UBE2C and repression of autophagy are concurrently underlying the initiation, progression, and metastasis of lung cancer and exploration of essential association of UBE2C with autophagy will confer more options in searching novel molecular therapeutic targets in lung cancer. Here we report that aberrant activation of UBE2C in lung tumors from patients associates with adverse prognosis and enhances cell proliferation, clonogenicity, and invasive growth of NSCLC...
June 13, 2018: Oncogenesis
Xuehai Wang, Gang Li, Qingsong Luo, Chongzhi Gan
To uncover the genes associated with the development of esophageal squamous cell carcinoma (ESCC), an ESCC microarray dataset was used to identify genes differentially expressed between ESCC and normal control tissues. The dataset GSE17351 was downloaded from the Gene Expression Omnibus, containing 5 tumor esophageal mucosa samples and 5 adjacent normal esophageal mucosa samples from 5 male patients with ESCC. The differentially expressed genes (DEGs) were identified using the Linear Models for Microarray Data R package...
June 2018: Oncology Letters
Xiaozhen Liu, Gan Jin, Jiacheng Qian, Hongjian Yang, Hongchao Tang, Xuli Meng, Yongfeng Li
BACKGROUND: This study aimed to screen sensitive biomarkers for the efficacy evaluation of neoadjuvant chemotherapy in breast cancer. METHODS: In this study, Illumina digital gene expression sequencing technology was applied and differentially expressed genes (DEGs) between patients presenting pathological complete response (pCR) and non-pathological complete response (NpCR) were identified. Further, gene ontology and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis were then performed...
April 23, 2018: World Journal of Surgical Oncology
H-Q Zhang, G Zhao, B Ke, G Ma, G-L Liu, H Liang, L-R Liu, X-S Hao
OBJECTIVE: The ubiquitin-conjugating enzyme E2C (UBE2C) has been known as a crucial factor upregulated in various tumors. The functions of UBE2C is mainly involved in the pathway protein ubiquitination. This study investigates the expression of UBE2C in gastric cancers and its correlation with overall survival rate. MATERIALS AND METHODS: Real-time PCR (RT-PCR) and Western blotting were performed to determine the expression of UBE2C in gastric cancer samples and adjacent normal tissues...
March 2018: European Review for Medical and Pharmacological Sciences
Pedro Nicolau-Neto, Antonio Palumbo, Marco De Martino, Francesco Esposito, Tatiana de Almeida Simão, Alfredo Fusco, Luiz Eurico Nasciutti, Nathalia Meireles Da Costa, Luis Felipe Ribeiro Pinto
FOXM1 (forkhead box protein M1) is a transcription factor that participates in all stages of tumor development, mainly through the control of cell cycle and proliferation, regulating the expression of genes involved in G1/S and G2/M transition and M phase progression. The ubiquitin conjugating enzyme E2 (UBE2C) is a member of the anaphase promoting complex/cyclosome, promoting the degradation of several target proteins along cell cycle progression, during metaphase/anaphase transition. FOXM1 and UBE2C have been found overexpressed in a wide range of different solid tumors...
March 29, 2018: Genes
Yoshie A Fujioka, Asuka Onuma, Wataru Fujii, Koji Sugiura, Kunihiko Naito
Vertebrate oocytes arrested at the first meiotic prophase must proceed to the second meiotic metaphase (MII) before fertilization. This meiotic process requires the precise control of protein degradation. Part of the protein degradation in oocytes is controlled by members of the ubiquitin-conjugating enzyme family, UBE2C and UBE2S, which are known to participate in mono-ubiquitination and poly-ubiquitination, respectively. Although UBE2 enzymes have been well studied in mitosis, their contribution to mammalian oocyte meiosis is relatively unknown and has been studied only in mice...
June 22, 2018: Journal of Reproduction and Development
Sandra Martínez-Canales, Miguel López de Rodas, Miriam Nuncia-Cantarero, Raquel Páez, Eitan Amir, Balázs Győrffy, Atanasio Pandiella, Eva María Galán-Moya, Alberto Ocaña
Although early stage ovarian cancer is in most cases a curable disease, some patients relapse even with appropriate adjuvant treatment. Therefore, the identification of patient and tumor characteristics to better stratify risk and guide rational drug development is desirable. Using transcriptomic functional annotation followed by protein-protein interacting (PPI) network analyses, we identified functions that were upregulated and associated with detrimental outcome in patients with early stage ovarian cancer...
May 2018: Cancer Medicine
Zhou Zhou, Yian Cheng, Yinan Jiang, Shi Liu, Meng Zhang, Jing Liu, Qiu Zhao
Since the five-year survival rate is less than 5%, pancreatic ductal adenocarcinoma (PDAC) remains the 4th cause of cancer-related death. Although PDAC has been repeatedly researched in recent years, it is still predicted to be the second leading cause of cancer death by year 2030. In our study, the differentially expressed genes in dataset GSE62452 were used to construct a co-expression network by WGCNA. The yellow module related to grade of PDAC was screened. Combined with co-expression network and PPI network, 36 candidates were screened...
2018: International Journal of Biological Sciences
Karl H Pang, Francesco Esperto, Aidan P Noon
Bladder cancer (BC) is a common disease in both sexes and majority of cases present as non-muscle invasive BC (NMIBC). The percentage of NMIBC progressing to muscle invasive BC (MIBC) varies between 25% and 75% and currently there are no reliable biomarkers that may predict the outcome of high-risk (HR) NMIBC. Whilst The Cancer Genome Atlas (TCGA) project has identified genetic alteration in MIBC using next-generation sequencing (NGS), genetic data in HR-NMIBC outcome prediction using this new technology are limited...
December 2017: Translational Andrology and Urology
Yan Zhang, Suli Tian, Xiaodong Li, Yanchao Ji, Zhongcheng Wang, Chang Liu
We aimed to characterize the expression pattern of UBE2C in rectal carcinoma and elucidate its fundamental involvement in rectal carcinoma biology. The relative expression of UBE2C in rectal carcinoma was determined by immunoblotting and QPCR. The cell viability was measured using CCK-8 assay. The anchorage-independent growth was evaluated with soft agar assay. Cell apoptosis was detected by Annexin V-PI staining. Invasion capacity was determined by transwell chamber. Tumor growth was monitored in xenograft mice model...
March 4, 2018: Cancer Biology & Therapy
Ben P Haynes, Ophira Ginsburg, Qiong Gao, Elizabeth Folkerd, Maria Afentakis, Le Hong Quang, Pham Thi Han, Pham Hong Khoa, Nguyen Van Dinh, Ta Van To, Mark Clemons, Ian E Smith, Mitch Dowsett
For premenopausal women with primary ER + breast cancer, oophorectomy (OvX) is an evidence-based cost-effective option and is standard treatment in many countries. However, there is virtually no data describing the effects of OvX on breast tumour biology. We therefore, characterised the endocrine and genome-wide transcriptional impact of OvX in 56 premenopausal women with ER + breast cancer for 2 weeks prior to mastectomy. Plasma estradiol concentrations decreased from 406 ± 41 to 20.7 ± 2...
2017: NPJ Breast Cancer
Lushun Yuan, Liang Chen, Kaiyu Qian, Guofeng Qian, Chin-Lee Wu, Xinghuan Wang, Yu Xiao
Human clear cell renal cell carcinoma (ccRCC) is one of the most common types of malignant adult kidney tumors. We constructed a weighted gene co-expression network to identify gene modules associated with clinical features of ccRCC ( n  = 97). Six hub genes ( CCNB2 , CDC20 , CEP55 , KIF20A , TOP2A and UBE2C ) were identified in both co-expression and protein-protein interaction (PPI) networks, which were highly correlated with pathologic stage. The significance of expression of the hub genes in ccRCC was ranked top 4 among all cancers and correlated with poor prognosis...
December 2017: Genomics Data
Chao-Hua Mo, Li Gao, Xiao-Fei Zhu, Kang-Lai Wei, Jing-Jing Zeng, Gang Chen, Zhen-Bo Feng
BACKGROUND: Ubiquitin-conjugating enzyme E2C (UBE2C) has been previously reported to correlate with the malignant progression of various human cancers, however, the exact molecular function of UBE2C in breast carcinoma (BRCA) remained elusive. We aimed to investigate UBE2C expression in BRCA and its clinical significance. METHODS: The expression of UBE2C in 209 BRCA tissue samples and 53 adjacent normal tissue samples was detected using immunohistochemistry. The clinical role of UBE2C was analyzed...
2017: Cancer Cell International
Ashley Beecham, Chuanhui Dong, Clinton B Wright, Nicole Dueker, Adam M Brickman, Liyong Wang, Charles DeCarli, Susan H Blanton, Tatjana Rundek, Richard Mayeux, Ralph L Sacco
OBJECTIVE: To investigate genetic variants influencing white matter hyperintensities (WMHs) in the understudied Hispanic population. METHODS: Using 6.8 million single nucleotide polymorphisms (SNPs), we conducted a genome-wide association study (GWAS) to identify SNPs associated with WMH volume (WMHV) in 922 Hispanics who underwent brain MRI as a cross-section of 2 community-based cohorts in the Northern Manhattan Study and the Washington Heights-Inwood Columbia Aging Project...
October 2017: Neurology. Genetics
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