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https://www.readbyqxmd.com/read/29353456/in-vivo-transient-and-partial-cell-reprogramming-to-pluripotency-as-a-therapeutic-tool-for-neurodegenerative-diseases
#1
REVIEW
S Tamanini, G P Comi, S Corti
In theory, human diseases in which a specific cell type degenerates, such as neurodegenerative diseases, can be therapeutically addressed by replacement of the lost cells. The classical strategy for cell replacement is exogenous cell transplantation, but now, cell replacement can also be achieved with in situ reprogramming. Indeed, many of these disorders are age-dependent, and "rejuvenating" strategies based on cell epigenetic modifications are a possible approach to counteract disease progression. In this context, transient and/or partial reprogramming of adult somatic cells towards pluripotency can be a promising tool for neuroregeneration...
January 20, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29353423/polymerase-chain-reaction-based-detection-of-myc-transduction-in-feline-leukemia-virus-infected-cats
#2
Ryosuke Sumi, Ariko Miyake, Taiji Endo, Yoshiharu Ohsato, Minh Ha Ngo, Kazuo Nishigaki
Feline lymphomas are associated with the transduction and activation of cellular proto-oncogenes, such as c-myc, by feline leukemia virus (FeLV). We describe a polymerase chain reaction assay for detection of myc transduction usable in clinical diagnosis. The assay targets c-myc exons 2 and 3, which together result in a FeLV-specific fusion gene following c-myc transduction. When this assay was conducted on FeLV-infected feline tissues submitted for clinical diagnosis of tumors, myc transduction was detected in 14% of T-cell lymphoma/leukemias...
January 20, 2018: Archives of Virology
https://www.readbyqxmd.com/read/29353209/mir-182-promotes-prostate-cancer-progression-through-activating-wnt-%C3%AE-catenin-signal-pathway
#3
Dawei Wang, Guoliang Lu, Yuan Shao, Da Xu
Although prostate cancer can be surgical excised and effectively treated by androgen-deprivation therapy, radiotherapy, or chemotherapy, management of patients with advanced or drug-resistance prostate cancer stills remains a big trouble. Accumulated evidence indicated that miR-182 and Wnt/β-catenin function as tumor oncogene in the progression of a variety of tumors. However, little is known about how miR-182 regulates β-catenin signal molecular and impacts on the tumorigenesis of human prostate cancer. In this study, employing the analyses of qRT-PCR, we found that prostate cancer tissues expressed much more miR-182 than non-cancer tissues did...
January 17, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29353077/classification-of-heterogeneous-genetic-variations-of-microrna-regulome-in-cancer
#4
Karin Hrovatin, Tanja Kunej
Genetic variations and differential expression of miRNA regulome components are associated with cancer. Thus miRNA based diagnosis and treatments have been proposed. However, to better explore these options, the molecular changes in miRNA regulome must be understood. MicroRNAs can be involved in regulation of oncogenes and tumour suppressors. As each miRNA targets broad range of genes, minor changes in miRNAs can have great effects, contributing to cell transformation. Many genetic variants of miRNA regulome have been reported to be associated with cancer, but this information needs to be systematized...
January 15, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29352138/mir-663-sustains-nsclc-by-inhibiting-mitochondrial-outer-membrane-permeabilization-momp-through-puma-bbc3-and-btg2
#5
Micol E Fiori, Lidia Villanova, Chiara Barbini, Maria Laura De Angelis, Ruggero De Maria
Treatment of lung cancer is an unmet need as it accounts for the majority of cancer deaths worldwide. The development of new therapies urges the identification of potential targets. MicroRNAs' expression is often deregulated in cancer and their modulation has been proposed as a successful strategy to interfere with tumor cell growth and spread. We recently reported on an unbiased high-content approach to identify miRNAs regulating cell proliferation and tumorigenesis in non-small cell lung cancer (NSCLC). Here we studied the oncogenic role of miR-663 in NSCLC biology and analyzed the therapeutic potential of miR-663 targeting...
January 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29352052/estrogen-receptor-positive-breast-cancer-exploiting-signaling-pathways-implicated-in-endocrine-resistance
#6
REVIEW
Adam M Brufsky, Maura N Dickler
Advancements in molecular profiling and endocrine therapy (ET) have led to more focused clinical attention on precision medicine. These advances have expanded our understanding of breast cancer (BC) pathogenesis and hold promising implications for the future of therapy. The estrogen receptor-α is a predominant endocrine regulatory protein in the breast and in estrogen-induced BC. Successful targeting of proteins and genes within estrogen receptor (ER) nuclear and nonnuclear pathways remains a clinical goal...
January 19, 2018: Oncologist
https://www.readbyqxmd.com/read/29352018/oncohistones-drivers-of-pediatric-cancers
#7
REVIEW
Faizaan Mohammad, Kristian Helin
One of the most striking results in the area of chromatin and cancer in recent years has been the identification of recurrent mutations in histone genes in pediatric cancers. These mutations occur at high frequency and lead to the expression of mutant histones that exhibit oncogenic features. Thus, they are termed oncohistones. Thus far, mutations have been found in the genes encoding histone H3 and its variants. The expression of the oncohistones affects the global chromatin landscape through mechanisms that have just begun to be unraveled...
December 1, 2017: Genes & Development
https://www.readbyqxmd.com/read/29351847/phosphorylation-of-ezh2-by-ampk-suppresses-prc2-methyltransferase-activity-and-oncogenic-function
#8
Lixin Wan, Kexin Xu, Yongkun Wei, Jinfang Zhang, Tao Han, Christopher Fry, Zhao Zhang, Yao Vickie Wang, Liyu Huang, Min Yuan, Weiya Xia, Wei-Chao Chang, Wen-Chien Huang, Chien-Liang Liu, Yuan-Ching Chang, Jinsong Liu, Yun Wu, Victor X Jin, Xiangpeng Dai, Jianfeng Guo, Jia Liu, Shulong Jiang, Jin Li, John M Asara, Myles Brown, Mien-Chie Hung, Wenyi Wei
Sustained energy starvation leads to activation of AMP-activated protein kinase (AMPK), which coordinates energy status with numerous cellular processes including metabolism, protein synthesis, and autophagy. Here, we report that AMPK phosphorylates the histone methyltransferase EZH2 at T311 to disrupt the interaction between EZH2 and SUZ12, another core component of the polycomb repressive complex 2 (PRC2), leading to attenuated PRC2-dependent methylation of histone H3 at Lys27. As such, PRC2 target genes, many of which are known tumor suppressors, were upregulated upon T311-EZH2 phosphorylation, which suppressed tumor cell growth both in cell culture and mouse xenografts...
January 18, 2018: Molecular Cell
https://www.readbyqxmd.com/read/29351801/high-expression-of-tmem40-is-associated-with-the-malignant-behavior-and-tumorigenesis-in-bladder-cancer
#9
Zhen-Fei Zhang, Han-Rong Zhang, Qing-Yan Zhang, Shu-Yu Lai, Yu-Zhen Feng, Yi Zhou, Si-Rong Zheng, Rong Shi, Jue-Yu Zhou
BACKGROUND: Bladder cancer (BCa) is one of the most common cancers in the urinary system among the world. Previous studies suggested that TMEM40 expression level was significantly associated with clinicopathological parameters including histological grade, clinical stage and pT status of bladder cancer. However, the molecular mechanism of TMEM40 in BCa remains poorly understood. METHODS: Real-time quantitative RT-PCR (qRT-PCR) and western blot (WB) were used to examine the expression levels of TMEM40 in BCa tissues, paired non-cancer tissues and cell lines...
January 19, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29351796/the-jun-mir-22-hur-regulatory-axis-contributes-to-tumourigenesis-in-colorectal-cancer
#10
Yanqing Liu, Xiaorui Chen, Rongjie Cheng, Fei Yang, Mengchao Yu, Chen Wang, Shufang Cui, Yeting Hong, Hongwei Liang, Minghui Liu, Chihao Zhao, Meng Ding, Wu Sun, Zhijian Liu, Feng Sun, Chenyu Zhang, Zhen Zhou, Xiaohong Jiang, Xi Chen
BACKGROUND: Colorectal cancer (CRC) is a severe health problem worldwide. Clarifying the mechanisms for the deregulation of oncogenes and tumour suppressors in CRC is vital for its diagnosis, treatment, prognosis and prevention. Hu antigen R (HuR), which is highly upregulated in CRC, functions as a pivotal oncogene to promote CRC progression. However, the underlying cause of its dysregulation is poorly understood. METHODS: In CRC tissue sample pairs, HuR protein levels were measured by Western blot and immunohistochemical (IHC) staining, respectively...
January 19, 2018: Molecular Cancer
https://www.readbyqxmd.com/read/29351497/screen-targeting-lung-and-prostate-cancer-oncogene-identifies-novel-inhibitors-of-rgs17-and-problematic-chemical-substructures
#11
Christopher R Bodle, Josephine H Schamp, Joseph B O'Brien, Michael P Hayes, Meng Wu, Jonathan A Doorn, David L Roman
Regulator of G protein signaling (RGS) proteins temporally regulate heterotrimeric G protein signaling cascades elicited by G protein-coupled receptor activation and thus are essential for cell homeostasis. The dysregulation of RGS protein expression has been linked to several pathologies, spurring discovery efforts to identify small-molecule inhibitors of these proteins. Presented here are the results of a high-throughput screening (HTS) campaign targeting RGS17, an RGS protein reported to be inappropriately upregulated in several cancers...
January 1, 2018: SLAS Discovery
https://www.readbyqxmd.com/read/29351231/molecular-network-based-identification-of-competing-endogenous-rnas-in-thyroid-carcinoma
#12
Minjia Lu, Xingyu Xu, Baohang Xi, Qi Dai, Chenli Li, Li Su, Xiaonan Zhou, Min Tang, Yuhua Yao, Jialiang Yang
RNAs may act as competing endogenous RNAs (ceRNAs), a critical mechanism in determining gene expression regulations in many cancers. However, the roles of ceRNAs in thyroid carcinoma remains elusive. In this study, we have developed a novel pipeline called Molecular Network-based Identification of ceRNA (MNIceRNA) to identify ceRNAs in thyroid carcinoma. MNIceRNA first constructs micro RNA (miRNA)-messenger RNA (mRNA)long non-coding RNA (lncRNA) networks from miRcode database and weighted correlation network analysis (WGCNA), based on which to identify key drivers of differentially expressed RNAs between normal and tumor samples...
January 19, 2018: Genes
https://www.readbyqxmd.com/read/29350682/conditional-replication-of-oncolytic-viruses-based-on-detection-of-oncogenic-mrna
#13
REVIEW
M Renteln
Recently, split intein-based detection sensors for RNA have been developed that can target custom sequences in a modular fashion. If multi-region, multi-sample sequencing were to be applied to a patient's cancer, truncal (i.e., earliest-occurring) mutations could be identified and could serve as targets for these sense-and-respond modules. The next step would be to utilize an effective vector for treatment. A hyper-virulent herpes simplex virus could possibly serve as this vector, with concurrent immunosuppression to allow for unhindered infection of the tumor regions...
January 19, 2018: Gene Therapy
https://www.readbyqxmd.com/read/29350614/lipg-signaling-promotes-tumor-initiation-and-metastasis-of-human-basal-like-triple-negative-breast-cancer
#14
Pang-Kuo Lo, Yuan Yao, Ji Shin Lee, Yongshu Zhang, Weiliang Huang, Maureen A Kane, Qun Zhou
Current understanding of aggressive human basal-like triple-negative breast cancer (TNBC) remains incomplete. In this study, we show endothelial lipase (LIPG) is aberrantly overexpressed in basal-like TNBCs. We demonstrate that LIPG is required for in vivo tumorigenicity and metastasis of TNBC cells. LIPG possesses a lipase-dependent function that supports cancer cell proliferation and a lipase-independent function that promotes invasiveness, stemness and basal/epithelial-mesenchymal transition features of TNBC...
January 19, 2018: ELife
https://www.readbyqxmd.com/read/29350287/long-non-coding-rna-h19-promotes-glucose-metabolism-and-cell-growth-in-malignant-melanoma-via-mir-106a-5p-e2f3-axis
#15
Wenkang Luan, Zhou Zhou, Xin Ni, Yun Xia, Jinlong Wang, Yulan Yan, Bin Xu
PURPOSE: lncRNA H19 has been considered as an oncogenic lncRNA in many human tumours. In the present study, we identify the role and molecular mechanism of lncRNA H19 in melanoma. METHOD: QRT-PCR was used to detect the expression of lncRNA H19 and E2F3 was detected in melanoma tissues. Cell counting kit-8 (CCK8), representative metabolites analysis was used to explore the biological function of lncRNA H19, miR-106a-5p and E2F3 in melanoma cells. Bioinformatics, luciferase reporter assays, MS2-RIP and RNA pull-down assay was used to demonstrate the molecular mechanism of lncRNA H19 in melanoma...
January 19, 2018: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/29349042/an-optimized-targeted-next-generation-sequencing-approach-for-sensitive-detection-of-single-nucleotide-variants
#16
S Stasik, C Schuster, C Ortlepp, U Platzbecker, M Bornhäuser, J Schetelig, G Ehninger, G Folprecht, C Thiede
Monitoring of minimal residual disease (MRD) has become an important clinical aspect for early relapse detection during follow-up care after cancer treatment. Still, the sensitive detection of single base pair point mutations via Next-Generation Sequencing (NGS) is hampered mainly due to high substitution error rates. We evaluated the use of NGS for the detection of low-level variants on an Ion Torrent PGM system. As a model case we used the c.1849G > T (p.Val617Phe) mutation of the JAK2-gene. Several reaction parameters (e...
May 2018: Biomolecular Detection and Quantification
https://www.readbyqxmd.com/read/29348883/spatial-habitats-from-multiparametric-mr-imaging-are-associated-with-signaling-pathway-activities-and-survival-in-glioblastoma
#17
Katherine Dextraze, Abhijoy Saha, Donnie Kim, Shivali Narang, Michael Lehrer, Anita Rao, Saphal Narang, Dinesh Rao, Salmaan Ahmed, Venkatesh Madhugiri, Clifton David Fuller, Michelle M Kim, Sunil Krishnan, Ganesh Rao, Arvind Rao
Glioblastoma (GBM) show significant inter- and intra-tumoral heterogeneity, impacting response to treatment and overall survival time of 12-15 months. To study glioblastoma phenotypic heterogeneity, multi-parametric magnetic resonance images (MRI) of 85 glioblastoma patients from The Cancer Genome Atlas were analyzed to characterize tumor-derived spatial habitats for their relationship with outcome (overall survival) and to identify their molecular correlates (i.e., determine associated tumor signaling pathways correlated with imaging-derived habitat measurements)...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348878/identification-of-cancer-prognosis-associated-functional-modules-using-differential-co-expression-networks
#18
Wenshuai Yu, Shengjie Zhao, Yongcui Wang, Brian Nlong Zhao, Weiling Zhao, Xiaobo Zhou
The rapid accumulation of cancer-related data owing to high-throughput technologies has provided unprecedented choices to understand the progression of cancer and discover functional networks in multiple cancers. Establishment of co-expression networks will help us to discover the systemic properties of carcinogenesis features and regulatory mechanisms of multiple cancers. Here, we proposed a computational workflow to identify differentially co-expressed gene modules across 8 cancer types by using combined gene differential expression analysis methods and a higher-order generalized singular value decomposition...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348864/the-macro-evolutionary-events-in-esophageal-squamous-cell-carcinoma
#19
Bin Yang, Ting Yan, Heyang Cui, Enwei Xu, Yanchun Ma, Caixia Cheng, Ling Zhang, Pengzhou Kong, Fang Wang, Yu Qian, Jian Yang, Yaoping Li, Hongyi Li, Yanghui Bi, Xiaoling Hu, Juan Wang, Bin Song, Jie Yang, Wei Gao, Jing Liu, Binbin Zou, Ruyi Shi, Yanyan Zhang, Haiyan Liu, Yiqian Liu, Yuanfang Zhai, Lu Chang, Yi Wang, Yingchun Zhang, Zhiwu Jia, Xing Chen, Yanfeng Xi, Guodong Li, Jianfang Liang, Jiansheng Guo, Shiping Guo, Rongsheng Zhang, Xiaolong Cheng, Yongping Cui
Understanding the evolutionary processes operative in cancer genome may provide insights into clinical outcome and drug-resistance. However, studies focus on genomic signatures, especially for macro-evolutionary events, in esophageal squamous cell carcinoma (ESCC) are limited. Here, we integrated published genomic sequencing data to investigate underlying evolutionary characteristics in ESCC. We found most of ESCC genomes were polyploidy with high genomic instability. Whole genome doubling that acts as one of mechanisms for polyploidy was predicted as a late event in the majority of ESCC genome...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348836/vitexin-confers-hsf-1-mediated-autophagic-cell-death-by-activating-jnk-and-apol1-in-colorectal-carcinoma-cells
#20
Monika Bhardwaj, Souren Paul, Rekha Jakhar, Imran Khan, Ji In Kang, Ho Min Kim, Jong Won Yun, Seon-Jin Lee, Hee Jun Cho, Hee Gu Lee, Sun Chul Kang
Heat shock transcription factor-1 (HSF-1) guards the cancerous cells proteome against the alterations in protein homeostasis generated by their hostile tumor microenvironment. Contrasting with the classical induction of heat shock proteins, the pro-oncogenic activities of HSF-1 remains to be explored. Therefore, cancer's fragile proteostatic pathway governed by HSF-1 could be a potential therapeutic target and novel biomarker by natural compounds. Vitexin, a natural flavonoid has been documented as a potent anti-tumor agent on various cell lines...
December 22, 2017: Oncotarget
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