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https://www.readbyqxmd.com/read/29156849/interest-of-integrins-targeting-in-glioblastoma-according-to-tumor-heterogeneity-and-cancer-stem-cell-paradigm-an-update
#1
REVIEW
Laure Malric, Sylvie Monferran, Julia Gilhodes, Sabrina Boyrie, Perrine Dahan, Nicolas Skuli, Julie Sesen, Thomas Filleron, Aline Kowalski-Chauvel, Elizabeth Cohen-Jonathan Moyal, Christine Toulas, Anthony Lemarié
Glioblastomas are malignant brain tumors with dismal prognosis despite standard treatment with surgery and radio/chemotherapy. These tumors are defined by an important cellular heterogeneity and notably contain a particular subpopulation of Glioblastoma-initiating cells, which recapitulate the heterogeneity of the original Glioblastoma. In order to classify these heterogeneous tumors, genomic profiling has also been undertaken to classify these heterogeneous tumors into several subtypes. Current research focuses on developing therapies, which could take into account this cellular and genomic heterogeneity...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156842/associations-between-egfr-gene-polymorphisms-and-susceptibility-to-glioma-a-systematic-review-and-meta-analysis-from-gwas-and-case-control-studies
#2
Xiao Yu, Nian Rong Sun, Hai Tao Jang, Shi Wen Guo, Min Xue Lian
The results of genome-wide association studies (GWAS) and case-control studies performed to investigate the associations between epidermal growth factor receptor (EGFR) gene polymorphisms and glioma risk are controversial. The aim of this systematic review and meta-analysis is to determine whether EGFR gene polymorphisms are associated with glioma risk by searching 'PubMed', 'EMBASE', 'Web of Science', 'Cochrane Library' and 'China WeiPu Library' to retrieve studies that investigated associations between EGFR gene polymorphisms and glioma risk...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156833/targeting-aggressive-prostate-cancer-associated-cd44v6-using-phage-display-selected-peptides
#3
Ying Peng, Austin R Prater, Susan L Deutscher
There is a crucial need to identify new biomarkers associated with aggressive prostate cancer (PCa) including those associated with cancer stem cells (CSCs). CD44v6, generated by alternative splicing of CD44, has been proposed as a CSC biomarker due to its correlation with aggressive PCa disease. We hypothesized that phage display selected peptides that target CD44v6 may serve as theranostic agents for aggressive PCa. Here, a 15 amino acid peptide ("PFT") was identified by affinity selection against a peptide derived from the v6 region of CD44v6...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156818/a-plasmid-containing-cpg-odn-as-vaccine-adjuvant-against-grass-carp-reovirus-in-grass-carp-ctenopharyngodon-idella
#4
Hang Su, Zhiwei Liao, Gailing Yuan, Jianguo Su
CpG oligodeoxynucleotides (ODNs) are proved to have strong immune stimulatory activity. Plasmids containing CpG ODNs could be conveniently and low-costly used as vaccine adjuvant. However, they are different among various plasmids, motif repeats, species, etc. In the present study, plasmid pcDNA3.1 (+) containing five repetitions of CpG ODN 1670A named pcDNA3.1-1670A*5 with strong immunostimulation was screened out from twelve recombinant plasmids and three empty vectors by cell proliferation activity, interferon promoter activities and immune related gene expressions in CIK cells...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156816/mixed-subtype-thyroid-cancer-a-surveillance-epidemiology-and-end-results-database-analysis
#5
Chunping Liu, Qiuyang Zhao, Zhi Li, Shuntao Wang, Yiquan Xiong, Zeming Liu, Tao Huang
The prognosis of patients with mixed subtype thyroid cancer (MSTC) is unclear. The present study compared the prognoses of MSTC, papillary thyroid cancer (PTC), and follicular thyroid cancer (FTC) to provide a new perspective regarding the treatment guidelines for these diseases. We evaluated data from patients with thyroid cancer who were included in the Surveillance, Epidemiology, and End Results database between 2004 and 2013. Patient mortality was evaluated using Cox proportional hazards regression analyses and Kaplan-Meier analyses with log-rank tests...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156803/tet1-inhibits-cell-proliferation-by-inducing-rassf5-expression
#6
Bo-Tai Li, Chao Yu, Ying Xu, Sheng-Bing Liu, Heng-Yu Fan, Wei-Wei Pan
Tet methylcytosine dioxygenases (TETs) catalyze the oxidative reactions of 5-methylcytosine to 5-hydroxymethylcytosine (5hmC). However, TET1 roles in ovarian cancer cell growth are unknown. Here, we show that ectopic expression of TET1 increased 5hmC levels, and inhibited proliferation and colony formation in ovarian cancer cell lines. Furthermore, in vitro and in vivo functional studies demonstrated that TET1 overexpression is necessary for the suppression of ovarian cancer growth, whereas depletion of TET1 expression had the opposite effect...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156797/jq1-synergizes-with-the-bcl-2-inhibitor-abt-263-against-mycn-amplified-small-cell-lung-cancer
#7
Huogang Wang, Bo Hong, Xuemin Li, Ke Deng, Hong Li, Vivian Wai Yan Lui, Wenchu Lin
Small cell lung cancer (SCLC) is a clinically aggressive cancer with very poor prognosis. Amplification of MYC family genes and overexpression of Bcl-2 protein are common in SCLC, and they are likely therapeutic targets for SCLC. Previous clinical study showed that single agent targeting Bcl-2 with ABT-263 was of limited efficacy in SCLC. In this study, we demonstrated for the first time that co-targeting of N-Myc and Bcl-2 resulted in marked synergistic antitumor effects in MYCN-amplified SCLC. We found that MYCN-amplified SCLC cells were highly sensitive to a Bromodomain and Extra-Terminal domain (BET) inhibitor JQ1, which was able to inhibit N-Myc protein expression...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156794/salen-mn-compounds-induces-cell-apoptosis-in-human-prostate-cancer-cells-through-promoting-ampk-activity-and-cell-autophagy
#8
Xiaoshuang Tang, Jing Jia, Feng Li, Wei Liu, Chao Yang, Bin Jin, Qi Shi, Xinyang Wang, Dalin He, Peng Guo
Currently only docetaxel has been approved to be used in the chemotherapy of prostate cancer and new drugs are urgent need. Salen-Mn is a novel type of synthetic reagent bionic and exerts remarkable anticancer activities. However, the effect of Salen-Mn on human prostate cancer has not been elucidated yet. In this study, we found that treatment of PC-3 and DU145 human prostate cancer cells with Salen-Mn inhibited cell growth in dose and time dependent manner. Moreover, Salen-Mn induced cell apoptosis, and increased the expression of apoptotic proteins, such as cleaved caspase-3, cleaved PARP, and Bax, in PC-3 and DU145 prostate cancer cells...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156779/selecting-lncrnas-in-gastric-cancer-cells-for-directed-therapy-with-bioactive-peptides-and-chemotherapy-drugs
#9
Wenyan Han, Rui Xiao, Chuanling Zhang, Qimuge Suyila, Xian Li, Xiulan Su
Selecting lncRNAs for directed therapy with bioactive peptides and chemotherapy drugs may be an effective approach to treating gastric cancer (GC). We show genome-scale identification and characterization of differentially expressed lncRNAs in GC cells treated with a novel anti-cancer bioactive peptide (ACBP) and the chemotherapy drug oxaliplatin (ASLB). A total of 17,897 lncRNAs were identified through pairwise comparison, including 2,074 novel lncRNAs. Of those, 1,386 lncRNAs were differentially expressed (over 1...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156765/network-directed-cis-mediator-analysis-of-normal-prostate-tissue-expression-profiles-reveals-downstream-regulatory-associations-of-prostate-cancer-susceptibility-loci
#10
Nicholas B Larson, Shannon K McDonnell, Zach Fogarty, Melissa C Larson, John Cheville, Shaun Riska, Saurabh Baheti, Alexandra M Weber, Asha A Nair, Liang Wang, Daniel O'Brien, Jaime Davila, Daniel J Schaid, Stephen N Thibodeau
Large-scale genome-wide association studies have identified multiple single-nucleotide polymorphisms associated with risk of prostate cancer. Many of these genetic variants are presumed to be regulatory in nature; however, follow-up expression quantitative trait loci (eQTL) association studies have to-date been restricted largely to cis-acting associations due to study limitations. While trans-eQTL scans suffer from high testing dimensionality, recent evidence indicates most trans-eQTL associations are mediated by cis-regulated genes, such as transcription factors...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156757/a-pten-col17a1-fusion-gene-and-its-novel-regulatory-role-in-collagen-xvii-expression-and-gbm-malignance
#11
Xiaoyan Yan, Chuanbao Zhang, Tingyu Liang, Fan Yang, Haoyuan Wang, Fan Wu, Wen Wang, Zheng Wang, Wen Cheng, Jiangnan Xu, Tao Jiang, Jing Chen, Yaozhong Ding
Collagen XVII expression has recently been demonstrated to be correlated with the tumor malignance. While Collagen XVII is known to be widely distributed in neurons of the human brain, its precise role in pathogenesis of glioblastoma multiforme (GBM) is unknown. In this study, we identified and characterized a new PTEN-COL17A1 fusion gene in GMB using transcriptome sequencing. Although fusion gene did not result in measurable fusion protein production, its presence is accompanied with high levels of COL17A1 expression, revealed a novel regulatory mechanism of Collagen XVII expression by PTEN-COL17A1 gene fusion...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156735/telomerase-reverse-transcriptase-mediates-emt-through-nf-%C3%AE%C2%BAb-signaling-in-tongue-squamous-cell-carcinoma
#12
Yan Wu, Chunxiang Bian, Chunlin Zhen, Liu Liu, Zhenghong Lin, Muhammad Farrukh Nisar, Mei Wang, Jörg W Bartsch, Enyi Huang, Ping Ji, Li Yang, Yanhong Yu, Junfeng Yang, Xuemei Jiang, Julia Li Zhong
Locoregional lymph nodes metastasis in oral tongue squamous cell carcinoma represents one of important and common prognostic factors for poor clinical outcome. The human Telomerase Reverse Transcriptase (hTERT) is one of key players in cancer metastasis and stemness, but its exact function in tongue squamous cell carcinoma remains unknown. Here, we aim to understand the role of hTERT by utilizing the CRISPR/Cas9 gene editing system to deplete hTERT in the SCC-15 cell line. Functional comparison of SCC-15 control and knockout cells (hTERT(-/-)) showed that loss of hTERT suppressed cell proliferation and migration/invasion...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156728/long-non-coding-rna-hotair-acts-as-a-competing-endogenous-rna-to-promote-malignant-melanoma-progression-by-sponging-mir-152-3p
#13
Wenkang Luan, Rubo Li, Liang Liu, Xin Ni, Yan Shi, Yun Xia, Jinlong Wang, Feng Lu, Bin Xu
HOX transcript antisense RNA (HOTAIR) is associated with the growth and metastasis of many human tumors, but its biological roles in malignant melanoma remain unclear. In this study, we show that HOTAIR is overexpressed in melanoma tissues and cells, especially in metastatic melanoma. High HOTAIR levels correlate with poor prognosis in melanoma patients. We also determined that HOTAIR functions as a competing endogenous RNA (ceRNA) for miR-152-3p. miR-152-3p was decreased and acted as a tumor suppressor in melanoma, and c-MET was the functional target of miR-152-3p...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156724/lncrna-pvt1-and-its-splicing-variant-function-as-competing-endogenous-rna-to-regulate-clear-cell-renal-cell-carcinoma-progression
#14
Tao Yang, Hui Zhou, Peijun Liu, Libin Yan, Weimin Yao, Ke Chen, Jin Zeng, Heng Li, Junhui Hu, Hua Xu, Zhangqun Ye
Long non-coding RNAs (lncRNAs) exert critical regulatory roles in the development and progression of several cancers. Plasmacytoma variant translocation 1 (PVT1), an lncRNA, was shown to be upregulated in clear cell renal cell carcinoma (ccRCC) in our study, while Kaplan-Meier curve and Cox regression analysis showed that high expression of PVT1 was associated with poor overall survival (OS) and disease free survival (DFS) in ccRCC patients. In vitro experiments revealed that PVT1 promoted renal cancer cell proliferation, migration, and invasion, while in vivo studies confirmed its oncogenic roles in ccRCC...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156722/whole-exome-sequencing-reveals-novel-mutations-and-epigenetic-regulation-in-hypopharyngeal-carcinoma
#15
Ping Wu, Honglong Wu, Yaoyun Tang, Shi Luo, Xing Fang, Chubo Xie, Jian He, Suping Zhao, Xiaofeng Wang, Jiajia Xu, Xi Chen, Dongfang Li, Huanming Yang, Jian Wang
Hypopharyngeal cancer (HPC) frequently presents at an advanced stage, resulting in poor prognosis. Although combined surgical therapy and chemoradiotherapy have improved the survival for patients with HPC over the past 3 decades, the mortality rate in late-stage diagnosis of HPC is unsatisfactory. In this study, we performed whole-exome sequencing (WES) of 23 hypopharyngeal tumor and paired adjacent normal tissue to identify novel candidate driver genes associated with hypopharyngeal carcinoma. We identified several copy number variants (CNVs) and 15 somatic mutation genes that were associated with hypopharyngeal carcinoma...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156720/novel-strategies-of-raman-imaging-for-brain-tumor-research
#16
Imiela Anna, Polis Bartosz, Polis Lech, Abramczyk Halina
Raman diagnostics and imaging have been shown to be an effective tool for the analysis and discrimination of human brain tumors from normal structures. Raman spectroscopic methods have potential to be applied in clinical practice as they allow for identification of tumor margins during surgery. In this study, we investigate medulloblastoma (grade IV WHO) (n= 5), low-grade astrocytoma (grades I-II WHO) (n =4), ependymoma (n=3) and metastatic brain tumors (n= 1) and the tissue from the negative margins used as normal controls...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156712/radiolabelled-polymeric-iga-from-biodistribution-to-a-new-molecular-imaging-tool-in-colorectal-cancer-lung-metastases
#17
Helene Carpenet, Armelle Cuvillier, Aurélie Perraud, Ophélie Martin, Gaël Champier, Marie-Odile Jauberteau, Jacques Monteil, Isabelle Quelven
By radiolabelling monomeric (m) and polymeric (p) IgA with technetium 99m ((99m)Tc), this study assessed IgA biodistribution and tumour-targeting potency. IgA directed against carcinoembryonic antigen (CEA), a colorectal cancer marker, was selected to involve IgA mucosal tropism. Ig was radiolabelled with (99m)Tc-tricarbonyl after derivatisation by 2-iminothiolane. (99m)Tc-IgA was evaluated by in vitro analysis. The biodistributions of radiolabelled anti-CEA mIgA, pIgA and IgG were compared in normal mice. Anti-CEA pIgA tumour uptake was studied in mice bearing the WiDr caecal orthotopic graft...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156703/preclinical-efficacy-of-the-novel-competitive-nampt-inhibitor-stf-118804-in-pancreatic-cancer
#18
Jair Machado Espindola-Netto, Claudia C S Chini, Mariana Tarragó, Enfeng Wang, Shamit Dutta, Krishnendu Pal, Debabrata Mukhopadhyay, Mauro Sola-Penna, Eduardo N Chini
NAD salvage is one of the pathways used to generate NAD in mammals. Nicotinamide phosphoribosyltransferase (NAMPT), the rate-limiting enzyme in this pathway, uses nicotinamide (NAM) to generate nicotinamide mononucleotide (NMN). NMN is one of the main precursors of NAD synthesis in cells. Our previous study showed the importance of NAMPT in maintaining NAD levels in pancreatic ductal adenocarcinoma cells (PDAC), and that the NAMPT inhibitor FK866 decreased pancreatic cancer growth. We now tested the effect of STF-118804, a new highly specific NAMPT inhibitor, in models of pancreatic ductal adenocarcinoma...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156698/combined-brd4-and-cdk9-inhibition-as-a-new-therapeutic-approach-in-malignant-rhabdoid-tumors
#19
Natalia Moreno, Till Holsten, Julius Mertins, Annabelle Zhogbi, Pascal Johann, Marcel Kool, Michael Meisterernst, Kornelius Kerl
Rhabdoid tumors are caused by the deletion of SMARCB1, whose protein encodes the SMARCB1 subunit of the chromatin remodeling complex SWI/SNF that is involved in global chromatin organization and gene expression control. Simultaneously inhibiting the main players involved in the deregulated transcription machinery is a promising option for preventing exaggerated tumor cell proliferation and survival as it may bypass compensatory mechanisms. In support of this hypothesis, we report efficient impairment of cellular proliferation and strong induction of cell death elicited by inhibition of bromodomain protein BRD4 and transcription kinase CDK9 using small molecular compounds...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156697/exploring-brusatol-as-a-new-anti-pancreatic-cancer-adjuvant-biological-evaluation-and-mechanistic-studies
#20
Zheng Lu, Zheng-Quan Lai, Albert W N Leung, Po Sing Leung, Zhao-Shen Li, Zhi-Xiu Lin
Pancreatic cancer is highly resistant to chemotherapeutic agents and is known to have a poor prognosis. The development of new therapeutic entities is badly needed for this deadly malignancy. In this study, we demonstrated for the first time that brusatol, a natural quassinoid isolated from a Chinese herbal medicine named Bruceae Fructus, possessed potent cytotoxic effect against different pancreatic adenocarcinoma cell lines. Its anti-pancreatic cancer effect was comparable to that of the first-line chemotherapeutic agents such as gemcitabine and 5-fluorouracil, with a more favorable safety profile...
October 17, 2017: Oncotarget
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