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Oncogenesis

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https://www.readbyqxmd.com/read/28535005/rpn11-deubiquitinase-promotes-proliferation-and-migration-of-breast-cancer-cells
#1
Guoqing Luo, Ningdong Hu, Xu Xia, Jingjing Zhou, Changsheng Ye
The deubiquitinase enzyme RPN11 is involved in oncogenesis in various types of cancer. However, in breast cancer, the expression levels, prognostic relevance and biological function of RPN11 remains unclear. In the present study, RPN11 expression levels in breast cancer tissues and adjacent non‑tumor tissues were determined by reverse transcription‑quantitative polymerase chain reaction and immunohistochemical staining, and the association of RPN11 with clinicopathological features of breast cancer was evaluated...
May 16, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28534998/proliferation%C3%A2-inhibiting-pathways-in-liver-regeneration-review
#2
Menggang Liu, Ping Chen
Liver regeneration, an orchestrated process, is the primary compensatory mechanism following liver injury caused by various factors. The process of liver regeneration consists of three stages: Initiation, proliferation and termination. Proliferation‑promoting factors, which stimulate the recovery of mitosis in quiescent hepatocytes, are essential in the initiation and proliferation steps of liver regeneration. Proliferation‑promoting factors act as the 'motor' of liver regeneration, whereas proliferation inhibitors arrest cell proliferation when the remnant liver reaches a suitable size...
May 19, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28534531/unravelling-the-biology-of-sclc-implications-for-therapy
#3
REVIEW
Joshua K Sabari, Benjamin H Lok, James H Laird, John T Poirier, Charles M Rudin
Small-cell lung cancer (SCLC) is an aggressive malignancy associated with a poor prognosis. First-line treatment has remained unchanged for decades, and a paucity of effective treatment options exists for recurrent disease. Nonetheless, advances in our understanding of SCLC biology have led to the development of novel experimental therapies. Poly [ADP-ribose] polymerase (PARP) inhibitors have shown promise in preclinical models, and are under clinical investigation in combination with cytotoxic therapies and inhibitors of cell-cycle checkpoints...
May 23, 2017: Nature Reviews. Clinical Oncology
https://www.readbyqxmd.com/read/28534510/targeting-group-i-p21-activated-kinases-to-control-malignant-peripheral-nerve-sheath-tumor-growth-and-metastasis
#4
G Semenova, D S Stepanova, C Dubyk, E Handorf, S M Deyev, A J Lazar, J Chernoff
Malignant peripheral nerve sheath tumors (MPNSTs) are devastating sarcomas for which no effective medical therapies are available. Over 50% of MPSNTs are associated with mutations in NF1 tumor suppressor gene, resulting in activation of Ras and its effectors, including the Raf/Mek/Erk and PI3K/Akt/mTORC1 signaling cascades, and also the WNT/β-catenin pathway. As Group I p21-activated kinases (Group I Paks, PAK1/2/3) have been shown to modulate Ras-driven oncogenesis, we asked if these enzymes might regulate signaling in MPNSTs...
May 22, 2017: Oncogene
https://www.readbyqxmd.com/read/28533339/structure-based-prediction-of-wnt-binding-affinities-for-frizzled-type-cysteine-rich-domain
#5
Mark Agostino, Sebastian Öther-Gee Pohl, Arunasalam Dharmarajan
Wnt signaling pathways are of significant interest in development and oncogenesis. The first step in these pathways typically involves the binding of a Wnt protein to the cysteine-rich domain (CRD) of a Frizzled receptor; Wnt-Frizzled interactions can be antagonized by secreted Frizzled-related proteins (sFRPs), which also contain a Frizzled-like CRD. The large number of Wnts, Frizzleds and sFRPs, as well as the hydrophobic nature of Wnt, pose challenges to laboratory-based investigations of interactions involving Wnt...
May 22, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28532700/gastric-cancer-as-preventable-disease
#6
Massimo Rugge, Robert M Genta, Francesco Di Mario, Emad M El-Omar, Hashem B El-Serag, Matteo Fassan, Richard H Hunt, Ernst J Kuipers, Peter Malfertheiner, Kentaro Sugano, David Y Graham
Gastric cancer (GC), one of the five most common causes of cancer death, is associated with a 5-year overall survival rate less than 30%. A minority of cancers occurs as part of syndromic diseases; more than 90% of adenocarcinomas are considered as the ultimate consequence of a longstanding mucosal inflammation. H. pylori infection is the leading etiology of non-self-limiting gastritis, which may result in atrophy of the gastric mucosa and impaired acid secretion. Gastric atrophy establishes a field of cancerization prone to further molecular and phenotypic changes, possibly resulting in cancer growth...
May 19, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28528424/trps1-gene-alterations-in-human-subependymoma
#7
Sascha B Fischer, Michelle Attenhofer, Sakir H Gultekin, Donald A Ross, Karl Heinimann
Subependymoma is a rare primary brain tumor, constituting 0.07-0.51% of brain tumors. Genetic alterations in subependymoma are largely unknown, but familial occurrences have been reported. Trichorhinophalangeal syndrome type 1 (TRPS1) is a rare hereditary malformation complex caused by mutations in a gene identified in the year 2000 on 8q24.12. We report two patients with TRPS I and surgically treated subependymomas, one of whom has a first degree relative, now deceased, who was affected and also had a subependymoma...
May 20, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28526815/partition-defective-3-pard3-regulates-proliferation-apoptosis-migration-and-invasion-in-esophageal-squamous-cell-carcinoma-cells
#8
Lei Wang, Haiping Zhang, Ayshamgul Hasim, Abuduaini Tuerhong, Zhichao Hou, Ablajan Abdurahmam, Ilyar Sheyhidin
BACKGROUND Altered expression of partition-defective 3 (PARD3), a polarity-related gene associated with oncogenesis, has been identified in some cancers, but the role of PARD3 in esophageal squamous cell carcinoma (ESCC) remains unclear. MATERIAL AND METHODS PARD3 expression in Eca109 cells was silenced using siRNA and overexpressed using an expression vector. We investigated the role of PARD3 in ESCC growth and motility to evaluate its potential role in ESCC. Transwell assay was used to evaluated cell migration and invasion...
May 20, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28526133/metabolic-reprogramming-and-oncogenesis-one-hallmark-many-organelles
#9
A S H Costa, C Frezza
The process of tumorigenesis can be described by a series of molecular features, among which alteration of cellular metabolism has recently emerged. This metabolic rewiring fulfills the energy and biosynthetic demands of fast proliferating cancer cells and amplifies their metabolic repertoire to survive and proliferate in the poorly oxygenated and nutrient-deprived tumor microenvironment. During the last decade, the complex reprogramming of cancer cell metabolism has been widely investigated, revealing cancer-specific metabolic alterations...
2017: International Review of Cell and Molecular Biology
https://www.readbyqxmd.com/read/28526131/metabolic-alterations-at-the-crossroad-of-aging-and-oncogenesis
#10
L Raffaghello, V Longo
Aging represents the major risk factor for cancer. Cancer and aging are characterized by a similar dysregulated metabolism consisting in upregulation of glycolysis and downmodulation of oxidative phosphorylation. In this respect, metabolic interventions can be viewed as promising strategies to promote longevity and to prevent or delay age-related disorders including cancer. In this review, we discuss the most promising metabolic approaches including chronic calorie restriction, periodic fasting/fasting-mimicking diets, and pharmacological interventions mimicking calorie restriction...
2017: International Review of Cell and Molecular Biology
https://www.readbyqxmd.com/read/28521420/long-non-coding-rna-gas5-inhibits-cell-proliferation-induces-g0-g1-arrest-and-apoptosis-and-functions-as-a-prognostic-marker-in-colorectal-cancer
#11
Yang Yang, Zhanlong Shen, Yichao Yan, Bo Wang, Jizhun Zhang, Chao Shen, Tao Li, Chunxiang Ye, Zhidong Gao, Guo Peng, Yingjiang Ye, Kewei Jiang, Shan Wang
Colorectal cancer (CRC) is the third most common cancer worldwide and its treatment remains a challenge. Effective control of cell survival and proliferation is critical in the prevention of oncogenesis and successful treatment of cancer. Long non-coding RNAs (lncRNAs) have emerged as primary regulators of carcinogenesis. Growth arrest specific 5 (GAS5), a lncRNA, is known to be aberrantly expressed in several types of cancer, however, the role of GAS5 in CRC remains unclear. In the present study, GAS5 mRNA expression was measured in CRC and adjacent normal mucosa tissue samples from 53 patients using reverse transcription-quantitative polymerase chain reaction analysis, in addition to seven CRC cell lines...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28515436/nimbolide-upregulates-reck-by-targeting-mir-21-and-hif-1%C3%AE-in-cell-lines-and-in-a-hamster-oral-carcinogenesis-model
#12
Jaganathan Kowshik, Rajakishore Mishra, Josephraj Sophia, Satabdi Rautray, Kumaraswamy Anbarasu, G Deepak Reddy, Madhulika Dixit, Sundarasamy Mahalingam, Siddavaram Nagini
Reversion-inducing cysteine-rich protein with Kazal motifs (RECK), a potent inhibitor of matrix metalloproteinases (MMPs) is a common negative target of oncogenic signals and a potential therapeutic target for novel drug development. Here, we show that sequential RECKlessness stimulates angiogenesis and Notch signalling in the 7,12-dimethylbenz[a]anthracene (DMBA)-induced hamster buccal pouch (HBP) carcinogenesis model, a paradigm for oral oncogenesis and chemointervention. We also report the chemotherapeutic effect of nimbolide, a limonoid from the neem tree (Azadirachta indica) based on the upregulation of RECK as well as modulation of the expression of key molecules involved in invasion and angiogenesis...
May 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28514723/genomic-profiling-of-pelvic-genital-type-leiomyosarcoma-in-a-woman-with-a-germline-chek2-c-1100delc-mutation-and-a-concomitant-diagnosis-of-metastatic-invasive-ductal-breast-carcinoma
#13
My Linh Thibodeau, Caralyn Reisle, Eric Zhao, Lee Ann Martin, Yazeed Alwelaie, Karen L Mungall, Carolyn Ch'ng, Ruth Thomas, Tony Ng, Stephen Yip, Howard Lim, Sophie Sun, Sean S Young, Aly Karsan, Yongjun Zhao, Andrew J Mungall, Richard A Moore, Daniel Renouf, Karen Gelmon, Yussanne P Ma, Malcolm Hayes, Janessa Laskin, Marco A Marra, Kasmintan A Schrader, Steven J M Jones
INTRODUCTION: We describe a woman with the known pathogenic germline variant CHEK2:c.1100delC and synchronous diagnoses of both pelvic genital type leiomyosarcoma and metastatic invasive ductal breast carcinoma. CHEK2 (checkpoint kinase 2) is a tumour suppressor gene encoding a serine/threonine-protein kinase (CHEK2) involved in double-strand DNA break repair and cell cycle arrest. The CHEK2:c.1100delC variant is a moderate penetrance allele resulting in an approximate 2-fold increase in breast cancer risk...
May 16, 2017: Cold Spring Harbor Molecular Case Studies
https://www.readbyqxmd.com/read/28514210/systemic-effects-of-local-tumor-ablation-oncogenesis-and-antitumor-induced-immunity
#14
Giovanni Mauri, Franco Orsi, Luca Maria Sconfienza
No abstract text is available yet for this article.
June 2017: Radiology
https://www.readbyqxmd.com/read/28513466/non-small-cell-lung-cancer-mutations-targeted-and-combination-therapy
#15
Justyna Kutkowska, Irena Porębska, Andrzej Rapak
Year after year, a growing number of cases of non-small cell lung cancer (NSCLC), mostly caused by smoking, have been noted. Most patients die because of the late detection of cancer and tumor resistance to treatment with cytostatics. Treatment of patients with advanced NSCLC is impeded by the low sensitivity of the tumor to cytostatic agents and the co-existence of many diseases, which substrate is, like lung cancer, cigarette smoking. Along with the development of molecular biology, targeted therapy has started to be used, affecting specific signaling pathways involved in the processes of oncogenesis...
May 17, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28512261/a-five-long-non-coding-rna-signature-to-improve-prognosis-prediction-of-clear-cell-renal-cell-carcinoma
#16
Da Shi, Qinghua Qu, Qimeng Chang, Yilin Wang, Yaping Gui, Dong Dong
Recent works have reported that long non-coding RNAs (lncRNAs) play critical roles in tumorigenesis and prognosis of cancers, suggesting the potential utility of lncRNAs as cancer prognostic markers. However, lncRNA signatures in predicting the survival of patients with clear cell renal cell carcinoma (ccRCC) remain unknown. In this study, we attempted to identify lncRNA signatures and their prognostic values in ccRCC. Using lncRNA expression profiling data in 440 ccRCC tumors from The Cancer Genome Atlas (TCGA) data, a five-lncRNA signature (AC069513...
April 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28512002/cell-surface-g-protein-coupled-receptors-for-tumor-associated-metabolites-a-direct-link-to-mitochondrial-dysfunction-in-cancer
#17
REVIEW
Bojana Ristic, Yangzom D Bhutia, Vadivel Ganapathy
Mitochondria are the sites of pyruvate oxidation, citric acid cycle, oxidative phosphorylation, ketogenesis, and fatty acid oxidation. Attenuation of mitochondrial function is one of the most significant changes that occurs in tumor cells, directly linked to oncogenesis, angiogenesis, Warburg effect, and epigenetics. In particular, three mitochondrial enzymes are inactivated in cancer: pyruvate dehydrogenase (PDH), succinate dehydrogenase (SDH), and 3-hydroxy-3-methylglutaryl CoA synthase-2 (HMGCS2). These enzymes are subject to regulation via acetylation/deacetylation...
May 13, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28510357/kif11-silencing-and-inhibition-induces-chromosome-instability-that-may-contribute-to-cancer
#18
Yasamin Asbaghi, Laura L Thompson, Zelda Lichtensztejn, Kirk J McManus
Understanding the aberrant pathways that contribute to oncogenesis and identifying the altered genes involved in these pathways is a critical first step to develop effective strategies to better combat cancer. Chromosome instability (CIN) is an aberrant phenotype that occurs in ∼80% of all cancer types and is associated with aggressive tumors, the acquisition of multi-drug resistance and poor patient prognosis. Despite these associations however, the aberrant genes and molecular defects underlying CIN remain poorly understood...
May 16, 2017: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/28510291/associations-between-rna-splicing-regulatory-variants-of-stemness-related-genes-and-racial-disparities-in-susceptibility-to-prostate-cancer
#19
Yanru Wang, Jennifer A Freedman, Hongliang Liu, Patricia G Moorman, Terry Hyslop, Daniel J George, Norman H Lee, Steven R Patierno, Qingyi Wei
Evidence suggests that cells with a stemness phenotype play a pivotal role in oncogenesis, and prostate cells exhibiting this phenotype have been identified. We used two genome-wide association study (GWAS) datasets of African descendants, from the Multiethnic/Minority Cohort Study of Diet and Cancer (MEC) and the Ghana Prostate Study, as well as two GWAS datasets of non-Hispanic whites, from the Prostate, Lung, Colorectal and Ovarian (PLCO) Cancer Screening Trial and the Breast and Prostate Cancer Cohort Consortium (BPC3), to analyze the associations between genetic variants of stemness-related genes and racial disparities in susceptibility to prostate cancer...
May 16, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28508825/abcs-of-rhogtpases-indicating-potential-role-as-oncotargets
#20
REVIEW
Indira Bora, Neeta Shrivastava
RhoGTPases also known as molecular switches represent a family of GTP-binding proteins. They shuttle between "On" and "Off" states. In the "On" state, they activate plethora of molecules. These proteins perform a wide variety of functions involving cytoskeletal modeling, cell motility, migration, and mitosis. Members of this family are referred as master regulators of many cellular activities. Due to wide variety of portfolios attributed to RhoGTPases, their misbehavior leads to initiation and also progression of metastatic cancers...
January 2017: Journal of Cancer Research and Therapeutics
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