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https://www.readbyqxmd.com/read/29241219/yap-inhibits-the-apoptosis-and-migration-of-human-rectal-cancer-cells-via-suppression-of-jnk-drp1-mitochondrial-fission-htra2-omi-pathways
#1
Haijun Li, Fucheng He, Xin Zhao, Yuan Zhang, Xi Chu, Chunlan Hua, Yunhui Qu, Yu Duan, Liang Ming
BACKGROUND/AIMS: The Hippo-Yap pathway is associated with tumor development and progression. However, little evidence is available concerning its role in cancer cell apoptosis and migration via mitochondrial homeostasis. Here, we identify mitochondrial fission as a regulator of the Hippo-Yap pathway in human rectal cancer tumorigenesis and metastasis. METHODS: In this study, we performed loss-of function assays concerning Yap in RCC via shRNA. Cellular viability and apoptosis were measured via MTT, the TUNEL assay and trypan blue staining...
December 12, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29241110/design-synthesis-and-initial-evaluation-of-affinity-based-small-molecular-probe-for-detection-of-wdr5
#2
Wei-Lin Chen, Dong-Dong Li, Zhi-Hui Wang, Xiao-Li Xu, Xiao-Jin Zhang, Zheng-Yu Jiang, Xiao-Ke Guo, Qi-Dong You
WDR5, a subunit of the SET/MLL complex, plays critical roles in various biological progresses and are abnormally expressed in many cancers. Here we report the design, synthesis, and biochemical characterization of a new chemical tool to capture WDR5 protein. The probe is a biotinylated version of compound 30 that is a potent WDR5 inhibitor we previously reported. Importantly, the probe displayed high affinity to WDR5 protein in vitro binding potency and showed the ability in specifically and real time monitoring WDR5 protein...
November 28, 2017: Bioorganic Chemistry
https://www.readbyqxmd.com/read/29241060/a-novel-electrochemical-cytosensor-for-selective-and-highly-sensitive-detection-of-cancer-cells-using-binding-induced-dual-catalytic-hairpin-assembly
#3
Ye Zhang, Shihua Luo, Bo Situ, Zhixin Chai, Bo Li, Jumei Liu, Lei Zheng
Rare cancer cells in body fluid could be useful biomarkers for noninvasive diagnosis of cancer. However, detection of these rare cells is currently challenging. In this work, a binding-induced dual catalytic hairpin assembly (DCHA) electrochemical cytosensor was developed for highly selective and sensitive detection of cancer cells. The fuel probe, released by hybridization between the capture probe and catalytic hairpin assembly (CHA) products of target cell-responsive reaction, initiated dual CHA recycling, leading to multiple CHA products...
December 7, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29240691/absence-of-correlation-between-chimeric-rna-and-aging
#4
Reyna Huang, Shailesh Kumar, Hui Li
Chimeric RNAs have been recognized as a phenomenon not unique to cancer cells. They also exist in normal physiology. Aging is often characterized by deregulation of molecular and cellular mechanisms, including loss of heterochromatin, increased transcriptional noise, less tight control on alternative splicing, and more stress-induced changes. It is thus assumed that chimeric RNAs are more abundant in older people. In this study, we conducted a preliminary investigation to identify any chimeric RNAs with age-based trends in their expression levels in blood samples...
December 14, 2017: Genes
https://www.readbyqxmd.com/read/29240459/downregulated-expression-of-hsa_circ_0074362-in-gastric-cancer-and-its-potential-diagnostic-values
#5
Yi Xie, Yongfu Shao, Weiliang Sun, Guoliang Ye, Xinjun Zhang, Bingxiu Xiao, Junming Guo
AIM: To explore the diagnostic value of hsa_circ_0074362 in the screening of gastric cancer. METHODS: The expression levels of hsa_circ_0074362 in 127 gastric cancer tissues and paired adjacent normal tissues, 83 gastritis tissues and six gastric cancer cell lines were first detected by quantitative reverse transcription-polymerase chain reaction. Then, the relationship between its levels and clinicopathological factors of patients with gastric cancer was analyzed...
December 14, 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/29240254/nf-%C3%AE%C2%BAb-regulated-mir-155-via-repression-of-qki-contributes-to-the-acquisition-of-csc-like-phenotype-during-the-neoplastic-transformation-of-hepatic-cells-induced-by-arsenite
#6
Chao Chen, Fei Luo, Qianlei Yang, Dapeng Wang, Ping Yang, Junchao Xue, Xiangyu Dai, Xinlu Liu, Hui Xu, Jiachun Lu, Aihua Zhang, Qizhan Liu
Chronic exposure to arsenite can cause various human tumors. For the initiation and recurrence of human liver cancer, the acquisition of CSC-like properties is essential. In various cancers, microRNAs (miRNAs) act as regulators in induction of CSC-like properties. Liver cancers over-express miR-155, but the mechanism relating miR-155 and arsenite-induced liver cancer is unknown. Here, we show that long-term exposure of L-02 cells to arsenite increases miR-155 levels by activation of NF-κB and leads to the acquisition of CSC-like properties...
December 14, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/29239821/long-noncoding-rna-fezf1-as1-indicates-a-poor-prognosis-of-gastric-cancer-and-promotes-tumorigenesis-via-activation-of-wnt-signaling-pathway
#7
Xiaoli Wu, Peichen Zhang, Hua Zhu, Shi Li, Xiangjian Chen, Lingyan Shi
Long non-coding RNAs (lncRNAs) have been demonstrated that it plays very important role in development and progression of carcinomas. LncRNA FEZF1 antisense RNA 1 (FEZF1-AS1) has been proved to be implicated in tumor initiation and progression of various cancers, recently. Nevertheless, the biological function and clinical significance of lncRNA FEZF1-AS1 in gastric cancer (GC) are not clear enough. Here, we concentrated on the association of FEZF1-AS1 expression and clinicopathological factors in GC tissues and cells...
November 24, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29239040/molecular-pathology-of-thyroid-tumours-of-follicular-cells-a-review-of-genetic-alterations-and-their-clinicopathological-relevance
#8
REVIEW
Giorgia Acquaviva, Michela Visani, Andrea Repaci, Kerry J Rhoden, Dario de Biase, Annalisa Pession, Tallini Giovanni
Thyroid cancer is the most common endocrine malignancy. Knowledge of the molecular pathology of thyroid tumours originating from follicular cells has greatly advanced in the past several years. Common molecular alterations, such as BRAF p.V600E, RAS point mutations, and fusion oncogenes (RET-PTC being the prototypical example), have been, respectively, associated with conventional papillary carcinoma, follicular-patterned tumours (follicular adenoma, follicular carcinoma, and the follicular variant of papillary carcinoma/non-invasive follicular thyroid neoplasm with papillary-like nuclear features), and with papillary carcinomas from young patients and arising after exposure to ionising radiation, respectively...
January 2018: Histopathology
https://www.readbyqxmd.com/read/29238975/effect-of-rural-and-urban-geography-on-larynx-cancer-incidence-and-survival
#9
Steven A Zuniga, Miriam N Lango
OBJECTIVES/HYPOTHESIS: Investigate the impact of rural geography on larynx cancer incidence and survival. STUDY DESIGN: Surveillance, Epidemiology, and End Results (SEER) database study. METHODS: Incidence and survival rates by Rural-Urban Continuum codes for larynx squamous cell carcinoma patients diagnosed from 2004 to 2012 were evaluated using SEER statistical software and Cox proportional hazards survival analysis. RESULTS: The lowest age-adjusted incidence rates for larynx cancer were seen in densely populated urban regions, with mean rates of 2...
December 14, 2017: Laryngoscope
https://www.readbyqxmd.com/read/29238906/thyroid-dysfunctions-secondary-to-cancer-immunotherapy
#10
REVIEW
P Chalan, G Di Dalmazi, F Pani, A De Remigis, A Corsello, P Caturegli
BACKGROUND: Immunotherapy is a firmly established pillar in the treatment of cancer, alongside the traditional approaches of surgery, radiotherapy, and chemotherapy. Like every treatment, also cancer immunotherapy causes a diverse spectrum of side effects, collectively referred to as immune-related adverse events. OBJECTIVE: This review will examine the main forms of immunotherapy, the proposed mechanism(s) of action, and the incidence of thyroid dysfunctions. METHODS: A comprehensive MEDLINE search was performed for articles published up to March 30, 2017...
December 13, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29238073/stage-dependent-therapeutic-efficacy-in-pi3k-mtor-driven-squamous-cell-carcinoma-of-the-skin
#11
Charbel Darido, Smitha R Georgy, Carleen Cullinane, Darren D Partridge, Rachael Walker, Seema Srivastava, Suraya Roslan, Marina R Carpinelli, Sebastian Dworkin, Richard B Pearson, Stephen M Jane
Cutaneous squamous cell carcinoma (SCC) is a recurrent cancer that is prevalent in predisposed subjects such as immunosuppressed patients and patients being treated for other malignancies. Model systems to trial therapies at different stages of SCC development are lacking, therefore precluding efficient therapeutic interventions. Here, we have disrupted the expression of the tumor suppressor GRHL3 to induce loss of PTEN and activation of the PI3K/mTOR signaling pathway in mice and human skin, promoting aggressive SCC development...
December 13, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29238068/microrna-105-is-involved-in-tnf-%C3%AE-related-tumor-microenvironment-enhanced-colorectal-cancer-progression
#12
Zetao Shen, Rui Zhou, Chen Liu, Yaofeng Wang, Wanqi Zhan, Ziyun Shao, Jian Liu, Feifei Zhang, Lijun Xu, Xinying Zhou, Lu Qi, Feng Bo, Yanqing Ding, Liang Zhao
TNF-α is a central proinflammatory cytokine contributing to malignant tumor progression in tumor microenvironment. In this study, we found the upregulation of miR-105 in colorectal cancer was associated with aggressive phenotype, and the enhanced expression of miR-105 was required for TNF-α-induced epithelial-mesenchymal transition (EMT). The expression of miR-105 was remarkably stimulated by TNF-α in a time-dependent manner using real-time qPCR analysis. Inhibition of miR-105 remarkably weakened the aggressive effects of TNF-α through preventing the activation of NF-κB signaling and the initiation of EMT...
December 13, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29238067/alternative-nhej-pathway-proteins-as-components-of-mycn-oncogenic-activity-in-human-neural-crest-stem-cell-differentiation-implications-for-neuroblastoma-initiation
#13
Erika A Newman, Sahiti Chukkapalli, Daniela Bashllari, Tina T Thomas, Raelene A Van Noord, Elizabeth R Lawlor, Mark J Hoenerhoff, Anthony W Opipari, Valerie P Opipari
Neuroblastoma is a cancer of neural crest stem cell (NCSC) lineage. Signaling pathways that regulate NCSC differentiation have been implicated in neuroblastoma tumorigenesis. This is exemplified by MYCN oncogene targets that balance proliferation, differentiation, and cell death similarly in normal NCSC and in high-risk neuroblastoma. Our previous work discovered a survival mechanism by which MYCN-amplified neuroblastoma circumvents cell death by upregulating components of the error-prone non-canonical alternative nonhomologous end-joining (alt-NHEJ) DNA repair pathway...
December 13, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29238047/negative-control-of-the-hgf-c-met-pathway-by-tgf-%C3%AE-a-new-look-at-the-regulation-of-stemness-in-glioblastoma
#14
Eleanna Papa, Michael Weller, Tobias Weiss, Elisa Ventura, Isabel Burghardt, Emese Szabó
Multiple target inhibition has gained considerable interest in combating drug resistance in glioblastoma, however, understanding the molecular mechanisms of crosstalk between signaling pathways and predicting responses of cancer cells to targeted interventions has remained challenging. Despite the significant role attributed to transforming growth factor (TGF)-β family and hepatocyte growth factor (HGF)/c-MET signaling in glioblastoma pathogenesis, their functional interactions have not been well characterized...
December 13, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29238039/helicobacter-pylori-vaca-induces-autophagic-cell-death-in-gastric-epithelial-cells-via-the-endoplasmic-reticulum-stress-pathway
#15
Pan Zhu, Jun Xue, Zhu-Jun Zhang, Yin-Ping Jia, Ya-Nan Tong, Dan Han, Qian Li, Yang Xiang, Xu-Hu Mao, Bin Tang
The Helicobacter pylori vacuolating cytotoxin (VacA) can promote progressive vacuolation and gastric injury and may be associated with human gastric cancer. Increasing evidence indicates that autophagy is involved in the cell death induced by VacA, but the specific mechanisms need to be further elucidated. We show here that VacA could induce autophagy and increase cell death in human gastric cancer cell lines. Further investigations revealed that inhibition of autophagy could decrease the VacA-induced cell death in AGS cells...
December 13, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29237484/the-clinical-efficacy-of-afatinib-30%C3%A2-mg-daily-as-starting-dose-may-not-be-inferior-to-afatinib-40%C3%A2-mg-daily-in-patients-with-stage-iv-lung-adenocarcinoma-harboring-exon-19-or-exon-21-mutations
#16
Chih-Jen Yang, Ming-Ju Tsai, Jen-Yu Hung, Mei-Hsuan Lee, Ying-Ming Tsai, Yu-Chen Tsai, Jui-Feng Hsu, Ta-Chih Liu, Ming-Shyan Huang, Inn-Wen Chong
BACKGROUND: Afatinib is a second-generation epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI). Compared to cytotoxic chemotherapy, afatinib has been shown to have better efficacy in the treatment of non-small cell lung cancer harboring EGFR mutations. However, 40 mg daily as the initial dose is often accompanied by serious adverse drug reactions (ADRs) and 28 to 53.3% of patients required a dose reduction. No previous study has compared the clinical efficacy and ADRs of different initial doses (40 mg vs...
December 13, 2017: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29237274/peroxiredoxin-involvement-in-the-initiation-and-progression-of-human-cancer
#17
Mark B Hampton, Kate A Vick, John Skoko, Carola A Neumann
SIGNIFICANCE: It has been proposed that cancer cells are heavily dependent on their antioxidant defences for survival and growth. Peroxiredoxins are a family of abundant thiol-dependent peroxidases that break down hydrogen peroxide, and they have a central role in the maintenance and response of cells to alterations in redox homeostasis. As such, they are potential targets for disrupting tumor growth. Recent Advances: Genetic disruption of peroxiredoxin expression in mice leads to an increased incidence of neoplastic disease, consistent with a role for peroxiredoxins in protecting genomic integrity...
December 14, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/29237157/hypoxia-accelerates-aggressiveness-of-hepatocellular-carcinoma-cells-involving-oxidative-stress-epithelial-mesenchymal-transition-and-non-canonical-hedgehog-signaling
#18
Zhikui Liu, Kangsheng Tu, Yufeng Wang, Bowen Yao, Qing Li, Liang Wang, Changwei Dou, Qingguang Liu, Xin Zheng
BACKGROUND/AIMS: Hypoxic microenvironment, a common feature of hepatocellular carcinoma (HCC), can induce HIF-1α expression and promote the epithelial-mesenchymal transition (EMT) and invasion of cancer cells. However, the underlying molecular mechanisms have not fully elucidated. METHODS: HCC cells were cultured under controlled hypoxia conditions or normoxic conditions. Transwell assays were used to examine the migration and invasion capacity. HIF-1α siRNA, cyclopamine (a SMO antagonist) and GLI1 siRNA were used to inhibit HIF-1α transcription or Hh signaling activation...
December 11, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29236327/pi3k-inhibitors-ic87114-inhibits-the-migration-and-invasion-of-thyroid-cancer-cell-in-vitro-and-in-vivo
#19
Yan Jiang, Shuai Hao, Wuguo Tian, Bo Gao, Xiaohua Zhang, Shu Zhang, Lingji Guo, Jie Yan, Donglin Luo
Thyroid cancer is currently the most common endocrine malignancies, and PI3K/Akt pathway play an important role during its initiation and development. IC87114 is an inhibitor of PI3K/Akt pathway. Little is known about the role of IC87114 in the initiation and progression of thyroid cancer. Here, we demonstrated that IC87114 significantly inhibited both the migration and invasion of thyroid cancer cells, which can be mediateded by inhibition of PI3K/Akt pathway.These results suggest that application of IC87114 may prove to be a particularly effective treatment for thyroid cancer...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236307/interleukin-4-induces-a-cd44high-cd49bhigh-pc3-subpopulation-with-tumor-initiating-characteristics
#20
Holger H H Erb, Fabian Guggenberger, Frédéric R Santer, Zoran Culig
Pro- and anti-inflammatory cytokines may influence proliferation, migration, invasion and other cellular events of prostate cancer (PCa) cells. The hyaluronan receptor CD44, which is regulated by Interleukin (IL)-4, is a prostate basal cell marker. CD44high /CD49bhigh expressing cells have been demonstrated to have tumor-initiating characteristics. Here, we aimed to analyze the effects of long-term IL-4 treatment on CD44/CD49b expression, migration, proliferation and clonogenic potential of basal-like PCa cells...
December 13, 2017: Journal of Cellular Biochemistry
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