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https://www.readbyqxmd.com/read/28441787/codon-usage-optimization-and-construction-of-plasmid-encoding-iranian-human-papillomavirus-type-16-e7-oncogene-for-lactococcus-lactis-subsp-cremoris-mg1363
#1
Amir Hossein Mohseni, Vadood Razavilar, Hossein Keyvani, Mohammad Reza Razavi, Ramazan Ali Khavari Nejad
HPV 16 intratypic sequence variations has been recognized in association with oncogenic potential diverge and geographic distribution. This study aimed to investigate nucleotide modifications and optimization of HPV 16 E7 regions from Iranian infected women. Cervical biopsies from 79/163 HPV 16 positive cancer patients detected in our study were analyzed by PCR in a couple of cloning of a complete ORF of the E7 gene, and sequencing. The most frequently observed variant was C196T in E7 which led to an amino acid change of R66W...
March 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28441730/regulatory-mirnas-in-colorectal-carcinogenesis-and-metastasis
#2
REVIEW
Yongchen Guo, Yonghua Bao, Wancai Yang
Colorectal cancer is one of the most common malignancies and is the second-leading cause of cancer-related death world-wide, which is linked to genetic mutations, epigenetic alterations, and oncogenic signaling activation. MicroRNAs, one of the categories of epigenetics, have been demonstrated significant roles in carcinogenesis and progression through regulating of oncogenic signaling pathways, stem cells, epithelial-mesenchymal transition, and metastasis. This review summarizes the roles of microRNAs in the regulating of Wnt, Ras, TGF-β, and inflammatory signaling pathways, stemness, and epithelial-mesenchymal transition, for carcinogenesis and metastasis in colorectal cancer...
April 22, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28441719/suppression-of-oxidative-stress-and-nf%C3%AE%C2%BAb-mapk-signaling-by-lyophilized-black-raspberries-for-esophageal-cancer-prevention-in-rats
#3
Ni Shi, Fang Chen, Xiaoli Zhang, Steven K Clinton, Xiaofei Tang, Zheng Sun, Tong Chen
Research in the laboratory has shown that lyophilized black raspberries (BRB) significantly inhibit N-nitrosomethylbenzylamine (NMBA)-induced esophageal squamous cell carcinogenesis in rats. The objective of the present study is to characterize the underlying mechanism(s) of anti-cancer action of BRB in this preclinical animal model focusing on oxidative stress and its related oncogenic signaling pathways. Esophageal epithelial tissues were collected and assessed for markers of oxidative stress and nuclear factor κB (NFκB) and mitogen-activated protein kinase (MAPK)...
April 22, 2017: Nutrients
https://www.readbyqxmd.com/read/28441455/gene-expression-study-and-pathway-analysis-of-histological-subtypes-of-intestinal-metaplasia-that-progress-to-gastric-cancer
#4
Osmel Companioni, José Miguel Sanz-Anquela, María Luisa Pardo, Eulàlia Puigdecanet, Lara Nonell, Nadia García, Verónica Parra Blanco, Consuelo López, Victoria Andreu, Miriam Cuatrecasas, Maddi Garmendia, Javier P Gisbert, Carlos A Gonzalez, Núria Sala
BACKGROUND: Intestinal metaplasia (IM) is a precursor lesion that precedes gastric cancer (GC). There are two IM histological subtypes, complete (CIM) and incomplete (IIM), the latter having higher progression rates to GC. This study was aimed at analysing gene expression and molecular processes involved in the progression from normal mucosa to IM, and also from IM subtypes to GC. METHODOLOGY: We used expression data to compare the transcriptome of healthy gastric mucosa to that of IM not progressing to GC, and the transcriptome of IM subtypes that had progressed to GC to those that did not progress...
2017: PloS One
https://www.readbyqxmd.com/read/28441382/hedgehog-signalling-pathway-orchestrates-angiogenesis-in-triple-negative-breast-cancers
#5
Concetta Di Mauro, Roberta Rosa, Valentina D'Amato, Paola Ciciola, Alberto Servetto, Roberta Marciano, Roberta Clara Orsini, Luigi Formisano, Sandro De Falco, Valeria Cicatiello, Maurizio Di Bonito, Monica Cantile, Francesca Collina, Angela Chambery, Bianca Maria Veneziani, Sabino De Placido, Roberto Bianco
BACKGROUND: Several evidences suggest a marked angiogenic dependency in triple-negative breast cancer (TNBC) tumorigenesis and a potential sensitivity to anti-angiogenic agents. Herein, the putative role of Hedgehog (Hh) pathway in regulating TNBC-dependent angiogenesis was investigated. METHODS: Expression and regulation of the Hh pathway transcription factor glioma-associated oncogene homolog1 protein (GLI1) were studied on the endothelial compartment and on TNBC-initiated angiogenesis...
April 25, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28440987/-tumors-of-the-central-nervous-system
#6
Marco Antonio Alegría-Loyola, Javier Andrés Galnares-Olalde, Moisés Mercado
Central nervous system (CNS) tumors constitute a heterogeneous group of neoplasms that share a considerable morbidity and mortality rate. Recent advances in the underlying oncogenic mechanisms of these tumors have led to new classification systems, which, in turn, allow for a better diagnostic approach and therapeutic planning. Most of these neoplasms occur sporadically and several risk factors have been found to be associated with their development, such as exposure to ionizing radiation or electromagnetic fields and the concomitant presence of conditions like diabetes, hypertension and Parkinson's disease...
May 2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28440909/roles-of-the-pdz-binding-motif-of-hpv-16-e6-protein-in-oncogenic-transformation-of-human-cervical-keratinocytes
#7
Yuki Yoshimatsu, Tomomi Nakahara, Katsuyuki Tanaka, Yuki Inagawa, Mako Narisawa-Saito, Takashi Yugawa, Shin-Ichi Ohno, Masatoshi Fujita, Hitoshi Nakagama, Tohru Kiyono
The high-risk human papillomavirus E6 proteins have been shown to interact with and lead degradation of PDZ-domain-containing proteins through its carboxy-terminal motif. This PDZ-binding motif plays important roles in transformation of cultured cells and carcinogenesis of E6-transgenic mice. However, its biological effects on the natural host cells have not been elucidated. We have examined its roles in an in vitro carcinogenesis model for cervical cancer, in which E6 and E7 together with activated HRAS (HRAS(G)(12V) ) can induce tumorigenic transformation of normal human cervical keratinocytes...
April 25, 2017: Cancer Science
https://www.readbyqxmd.com/read/28440665/reprogramming-of-oncogene-expression-in-gingival-mesenchymal-stem-cells-following-long-term-culture-in-vitro
#8
Agnese Gugliandolo, Thangavelu Soundara Rajan, Domenico Scionti, Francesca Diomede, Placido Bramanti, Emanuela Mazzon, Oriana Trubiani
Mesenchymal stem cells (MSCs) are a promising resource for stem cell therapy for the treatment of different neurodegenerative disorders. In particular, dental MSCs, given their origin from neural crest and their proneness toward neuronal differentiation, may be more suitable for transplantation. However, if MSCs can undergo spontaneous transformation and give rise to tumor is still debated. Data about transcriptional regulation of oncogenes in MSCs following in vitro expansion are not available. In this work, we compared gene expression levels of oncogenes in gingival-derived MSCs at passage number 10 and 41...
April 25, 2017: Cellular Reprogramming
https://www.readbyqxmd.com/read/28440610/evaluation-expression-of-microrna-93-and-integrin-%C3%AE-8-in-different-types-of-glioma-tumors
#9
Reza Malekpour Afshar, Hamid Reza Mollaei, Mahdieh Shokrizadeh, Maryam Iranpour
MicroRNAs (miRNAs), are a type of small non-coding RNAs, that induce mRNA degradation or repress translation by binding to the 3′-untranslated region (UTR) of its target mRNA. Some specific miRNAs, e.g. miR-93, have been discovered to be involved in pathological procedures by targeting some oncogenes or tumor suppressors in glioma. In the present study, real-time RT-PCR data was indicated the expression pattern and prognostic value of miR-93 in patients with types of Glioma.MiR-93 expression was significantly decreased in tumor tissue compared with normal group brain tissues (P<0...
March 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28440528/-effect-of-asct2-gene-knock-down-by-shrna-on-biological-behaviors-of-colorectal-cancer-cells
#10
Canfeng Cai, Bing Zeng, Jun Zeng, Haiyang Xin, Chaoming Tang
OBJECTIVE: To investigate the effect of ASCT2 gene (glutamine transporter) knock-down by shRNA on biological behaviors of colorectal cancer cells. METHODS: shRNA was transfected into colorectal cancer cells Lovo and SW480 to knockdown ASCT2 mediated by Lipofectamine 2000. Reverse transcription-PCR and Western blot were used to examine the mRNA and protein expression of ASCT2. MTT and transwell assay were used to determine the proliferation and invasiveness of Lovo and SW480 cells...
April 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28440508/expression-levels-of-microrna%C3%A2-455-and-its-potential-functions-by-targeting-igf%C3%A2-1r-in-melanoma
#11
Hui Wang, Liang Yu, Xiujuan Shan
Melanoma has the highest fatality and malignancy of all skin cancers. In cancer, microRNAs (miRNAs) act as tumor suppressors or oncogenes, and inactivation of oncogenic miRNAs or restoration of tumor suppressor miRNAs has potential for cancer treatment. In the present study, miR‑455 expression levels were examined in melanoma tissues and cell lines, and miR‑455 was significantly downregulated in melanoma compared with matched normal tissues or normal epidermal melanocytes. In addition, increasing miR‑455 expression in melanoma cells reduced cell proliferation and invasion...
April 12, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28440504/adipor1-mediated-mir-3908-inhibits-glioblastoma-tumorigenicity-through-downregulation-of-stat2-associated-with-the-ampk-sirt1-pathway
#12
Xiangming Liu, Jinglong Chen, Jinqian Zhang
A prospective method of treatment for cancer is to inhibit oncogene signaling pathways with microRNA (miRNA or miR). In the present study, whether the expression of STAT2, AdipoR1/AMPK/SIRT1 pathway of glioma is regulated by miR-3908 was explored. To confirm whether the predicted miR-3908 is matched with STAT2 and AdipoR1, 3'UTR luciferase activity of STAT2 and AdipoR1 was assessed. In the presence of the mimics or inhibitors of miR-3908, cell function of glioma cells, such as proliferation, growth, migration, invasion and apoptosis were analyzed...
April 20, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28440444/mirna-556-3p-promotes-human-bladder-cancer-proliferation-migration-and-invasion-by-negatively-regulating-dab2ip-expression
#13
Chen Feng, Ping Sun, Jing Hu, Hua Feng, Mingqiu Li, Guibo Liu, Yanming Pan, Ying Feng, Yongliang Xu, Kejian Feng, Yukuan Feng
MicroRNAs (miRNAs) play critical roles in tumorigenesis and metastasis by negatively regulating gene expression through complementary binding to the 3'-untranslated region of target mRNAs. The role of miRNAs in expression of the tumor suppressor DAB2IP in bladder cancer (BC) remains unknown. The aim of the present study was to identify miRNAs targeting DAB2IP and determine their expression and function in BC. We predicted candidate miRNAs targeting DAB2IP using TargetScan software. Dual-luciferase reporter assays confirmed that miRNA-556-3p directly regulated DAB2IP expression...
April 20, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28440423/upregulated-microrna-429-inhibits-the-migration-of-hcc-cells-by-targeting-traf6-through-the-nf-%C3%AE%C2%BAb-pathway
#14
Peng Wang, Jia Cao, Shihai Liu, Huazheng Pan, Xiangping Liu, Aihua Sui, Liping Wang, Ruyong Yao, Zimin Liu, Jun Liang
Increasing evidence indicates that miR-429 is involved in tumor suppression in various human cancers. however, its role in hepatocellular carcinoma (HCC) remains unclear. In the present study, we found that miR-429 was significantly downregulated in HCC tissue samples and cell lines. Upregulation of miR-429 markedly suppressed proliferation and migration of HCC cells. Moreover, we identified TRAF6 as a direct target of miR-429. Downregulation of TRAF6 partially attenuated the oncogenic effect of anti‑miR-429 on HCC cells...
May 2017: Oncology Reports
https://www.readbyqxmd.com/read/28440408/identification-of-potential-gene-targets-in-systemic-vasculitis-using-dna-microarray-analysis
#15
Yiwen Feng, Miao Zheng, Shujie Gan, Lei Zhang, Zhong Wan, Yanping Zhang, Qin Qian, Jingdong Tang
The present study aimed to identify the involvement of critical genes in systemic vasculitis, to gain an improved understanding of the molecular circuity and to investigate novel potential gene targets for systemic vasculitis treatment. The dual‑color cDNA microarray data of GSE16945, consisting of peripheral mononuclear blood cell specimens from 13 patients with systemic vasculitis and 16 healthy controls, was downloaded from the Gene Expression Omnibus database. Differentially expressed genes (DEGs) were screened in systemic vasculitis compared with controls using BRB ArrayTools, followed by the construction of a protein‑protein interaction (PPI) network using the clusterProfiler package, and significant functional interaction (FI) module selection...
April 11, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28440206/role-of-foxm1-in-the-progression-and-epithelial-to-mesenchymal-transition-of-gastrointestinal-cancer
#16
Jing Zhang, Yangyang Niu, Chen Huang
Background and Objective:Gastrointestinal (GI) cancer, characterized by its leading mortality, is one of the most common cancers worldwide. The underlying mechanisms contributing to epithelial to mesenchymal transition (EMT) and metastasis of GI cancer is poorly understood. It is well known that a great number of transcription factors including FoxM1, KLF4, STAT3 and so forth, are associated with the process of EMT and have also been strongly implicated in the proliferation, migration, and invasion of GI cancer cells...
April 24, 2017: Recent Patents on Anti-cancer Drug Discovery
https://www.readbyqxmd.com/read/28439875/epigenetic-repression-of-mir-375-is-the-dominant-mechanism-for-constitutive-activation-of-the-pdpk1-rps6ka3-signalling-axis-in-multiple-myeloma
#17
Shotaro Tatekawa, Yoshiaki Chinen, Masaki Ri, Tomoko Narita, Yuji Shimura, Yayoi Matsumura-Kimoto, Taku Tsukamoto, Tsutomu Kobayashi, Eri Kawata, Nobuhiko Uoshima, Tomohiko Taki, Masafumi Taniwaki, Hiroshi Handa, Shinsuke Iida, Junya Kuroda
Cytogenetic/molecular heterogeneity is the hallmark of multiple myeloma (MM). However, we recently showed that the serine/threonine kinase PDPK1 and its substrate RPS6KA3 (also termed RSK2) are universally active in MM, and play pivotal roles in myeloma pathophysiology. In this study, we assessed involvement of aberrant miR-375 repression in PDPK1 overexpression in MM. An analysis of plasma cells from 30 pre-malignant monoclonal gammopathies of undetermined significance and 73 MM patients showed a significant decrease in miR-375 expression in patient-derived plasma cells regardless of the clinical stage, compared to normal plasma cells...
April 25, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28439564/the-evolution-of-lifespan-and-age-dependent-cancer-risk
#18
Andrii I Rozhok, James DeGregori
The Armitage-Doll multi-stage model of carcinogenesis tremendously refocused cancer science by postulating that carcinogenesis is driven by a sequence of genetic changes in cells. Age-dependent cancer incidence thus has been explained in terms of the time necessary for oncogenic mutations to occur. While the multi-step nature of cancer evolution is well-supported by evidence, the mutation-centric theory is unable to explain a number of phenomena, such as the disproportion between cancer frequency and animal body size or the scaling of cancer incidence to animal lifespan...
October 2016: Trends in Cancer
https://www.readbyqxmd.com/read/28439110/characterization-of-the-leukemogenic-potential-of-distal-cytoplasmic-csf3r-truncation-and-missense-mutations
#19
H Zhang, A R Schultz, S Luty, A Rofelty, Y Su, S Means, D Bottomly, B Wilmot, S K McWeeney, J W Tyner
An increasing number of variants of unknown significance (VUS) are being identified in leukemia patients with the application of deep sequencing and these include CSF3R cytoplasmic mutations. Previous studies have demonstrated oncogenic potential of certain CSF3R truncation mutations prior to internalization motifs. However, the oncogenic potential of truncating the more distal region of CSF3R cytoplasmic domain as well as cytoplasmic missense mutations remains uncharacterized. Here we identified that CSF3R distal cytoplasmic truncation mutations (Q793-Q823) also harbored leukemogenic potential...
April 25, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28439064/immunotherapy-of-dual-function-vector-with-both-immunostimulatory-and-b-cell-lymphoma-2-bcl-2-silencing-effects-on-gastric-carcinoma
#20
Lanying Ma, Mei Han, Zumureti Keyoumu, Hua Wang, Saifuding Keyoumu
BACKGROUND Tumorigenesis is a kind of pathology marked by infinite proliferation and restrained apoptosis compared with normal cells. The abnormal expression of some proto-oncogenes and apoptosis inhibition are essential for tumor growth, which has been confirmed by molecular biologic and immunologic studies. The hypofunction of the host immune system also drives the development and metastasis of malignant tumors. Bcl-2, which has a critical role in regulating apoptosis, is overexpressed in several cancers...
April 25, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
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