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https://www.readbyqxmd.com/read/28732393/microrna-30a-suppresses-tumor-progression-by-blocking-ras-raf-mek-erk-signaling-pathway-in-hepatocellular-carcinoma
#1
Kun Zhou, Xiaoyu Luo, Yu Wang, Dachun Cao, Gang Sun
Emerging reports suggest microRNAs (miRNAs) play a vital role in the progression of malignant tumors. MiR-30a is downregulated in a variety of cancers and acts as a tumor suppressing gene. However, the molecular mechanisms of miRNA-30a in hepatocellular carcinoma (HCC) are still unclear. Hereby, in this study, we detected that miR-30a expression was significantly down-regulated in both HCC tissues compared with adjacent non-cancerous liver tissues, and we also observed that miR-30a expression was lower in HCC cell lines than that of normal controls...
July 17, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28732387/the-micrornas-mir-200b-3p-and-mir-429-5p-target-the-limk1-cfl1-pathway-to-inhibit-growth-and-motility-of-breast-cancer-cells
#2
Dengfeng Li, Hong Wang, Hongming Song, Hui Xu, Bingkun Zhao, Chenyang Wu, Jiashu Hu, Tianqi Wu, Dan Xie, Junyong Zhao, Qiang Shen, Lin Fang
Triple-negative breast cancer (TNBC) has the worst prognosis of all subtypes of breast cancer (BC), with limited options for conventional therapy and no targeted therapies. MicroRNAs (miRNAs) are small noncoding RNAs that negatively regulate gene expression. In this study, we aimed to determine whether two members of the miR-200 family, miR-200b-3p and miR-429-5p, are involved in BC cell proliferation and motility and to elucidate their target genes and pathways. We performed a meta-analysis that reveals down-regulated expression of miR-200b-3p and miR-429-5p in BC tissues and cell lines, consistent with a lower expression of miR-200b-3p and miR-429-5p in MDA-MB-231 and HCC1937 cells than in MCF-7 and MCF-10 cells...
July 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28732385/the-role-of-mirna-and-lncrna-in-gastric-cancer
#3
REVIEW
Ning-Bo Hao, Ya-Fei He, Xiao-Qin Li, Kai Wang, Rui-Ling Wang
Gastric cancer is one of the most common cancers and has the highest mortality rate worldwide. It is worthwhile to explore the mechanism of gastric cancer progression. An increasing number of studies have found that non-coding RNAs including miRNA and lncRNA play important roles in gastric cancer progression. This review summarized the role of ectopic miRNA in gastric cancer proliferation, growth, migration, invasion and apoptosis. Meantime, aberrantly expressed miRNA also received a great deal of attention as potential biomarker for gastric cancer diagnosis and therapy...
July 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28732357/profiling-cancer-related-gene-mutations-in-oral-squamous-cell-carcinoma-from-japanese-patients-by-targeted-amplicon-sequencing
#4
Takafumi Nakagaki, Miyuki Tamura, Kenta Kobashi, Ryota Koyama, Hisayo Fukushima, Tomoko Ohashi, Masashi Idogawa, Kazuhiro Ogi, Hiroyoshi Hiratsuka, Takashi Tokino, Yasushi Sasaki
Somatic mutation analysis is a standard practice in the study of human cancers to identify mutations that cause therapeutic sensitization and resistance. We performed comprehensive genomic analyses that used PCR target enrichment and next-generation sequencing on Ion Proton semiconductor sequencers. Forty-seven oral squamous cell carcinoma (OSCC) samples and their corresponding noncancerous tissues were used for multiplex PCR amplification to obtain targeted coverage of the entire coding regions of 409 cancer-related genes (covered regions: 95...
July 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28731876/neuraxial-drug-delivery-for-the-management-of-cancer-pain-cost-updates-and-society-guidelines
#5
Collin F M Clarke
PURPOSE OF REVIEW: The present study discusses the utilization of neuraxial drug delivery (NDD) for the management of cancer pain, based on recent trials, reviews, and guidelines with a focus on cost analysis. RECENT FINDINGS: Almost all recent publications suggest that more stringent research is needed to improve evidence on NDD, particularly as conflicting reports exist regarding cost effectiveness of drug delivery systems. The combination of local anesthetics and opioids, with or without clonidine, continues to be reported as beneficial with the utilization of patient controlled systems providing an advantage over continuous ones...
July 20, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28731781/lncrna-pvt1-facilitates-invasion-through-upregulation-of-mmp9-in-nonsmall-cell-lung-cancer-cell
#6
Wei Chen, Huayun Zhu, Li Yin, Tingting Wang, Jianfeng Wu, Jianhua Xu, Hua Tao, Juying Liu, Xia He
Lung cancer is the most common solid tumor around the world. It has been reported that upregulation of long noncoding RNA (lncRNA) plasmacytoma variant translocation 1 (lncRNA-PVT1) is closely associated with tumor metastasis. However, the function and underlying molecular mechanism of lncRNA-PVT1 in nonsmall cell lung cancer (NSCLC) invasion remain unknown. In this study, we found that overexpression of lncRNA-PVT1 promoted the invasive ability of NSCLC cells, whereas silence of lncRNA-PVT1 suppressed cell invasion...
July 21, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28731526/drug-discovery-and-development-for-rare-genetic-disorders
#7
REVIEW
Wei Sun, Wei Zheng, Anton Simeonov
Approximately 7,000 rare diseases affect millions of individuals in the United States. Although rare diseases taken together have an enormous impact, there is a significant gap between basic research and clinical interventions. Opportunities now exist to accelerate drug development for the treatment of rare diseases. Disease foundations and research centers worldwide focus on better understanding rare disorders. Here, the state-of-the-art drug discovery strategies for small molecules and biological approaches for orphan diseases are reviewed...
July 21, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28731496/prognostic-factors-for-survival-in-metastatic-renal-cell-carcinoma-patients-with-brain-metastases-receiving-targeted-therapy
#8
Ibrahim Yildiz, Ahmet Bilici, Nuri Karadurmuş, Leyla Ozer, Deniz Tural, Mehmet A Kaplan, Tülay Akman, Ibrahim V Bayoglu, Mükremin Uysal, Yaşar Yildiz, Özgür Tanriverdi, Ozan Yazici, Zeki Sürmeli, Nazim Serdar Turhal, Sevil Bavbek, Fatih Selçukbiricik, Doğan Koca, Mert Basaran
BACKGROUND: The primary objective of our study was to examine the clinical outcomes and prognosis of patients with metastatic renal cell carcinoma (mRCC) with brain metastases (BMs) receiving targeted therapy. PATIENTS AND METHODS: Fifty-eight patients from 16 oncology centers for whom complete clinical data were available were retrospectively reviewed. RESULTS: The median age was 57 years (range 30-80). Most patients underwent a nephrectomy (n = 41; 70...
July 14, 2017: Tumori
https://www.readbyqxmd.com/read/28731495/significance-of-neutrophil-to-lymphocyte-ratio-in-western-advanced-egfr-mutated-non-small-cell-lung-cancer-receiving-a-targeted-therapy
#9
Fausto Meriggi, Claudio Codignola, Giordano D Beretta, Giovanni L Ceresoli, Alberto Caprioli, Mario Scartozzi, Anna P Fraccon, Tiziana Prochilo, Chiara Ogliosi, Alberto Zaniboni
PURPOSE: Lung cancer is one of the leading causes of cancer-related death worldwide and, although targeted therapy with tyrosine kinase inhibitors has dramatically improved the rates of response and survival in advanced EGFR-mutated adenocarcinoma, the overall outcome remains unsatisfactory. Therefore, new prognostic factors, preferably simple, inexpensive, and easy to reproduce on a large scale, are needed. We performed a retrospective analysis of our database including 63 western Caucasian patients with advanced EGFR-mutated lung adenocarcinoma and receiving gefitinib, erlotinib, or afatinib as first- or second-line therapy...
July 14, 2017: Tumori
https://www.readbyqxmd.com/read/28731466/interaction-of-galectin-3-with-muc1-on-cell-surface-promotes-egfr-dimerization-and-activation-in-human-epithelial-cancer-cells
#10
Tushar Piyush, Anisha R Chacko, Paulina Sindrewicz, John Hilkens, Jonathan M Rhodes, Lu-Gang Yu
Epidermal growth factor receptor (EGFR) is an important regulator of epithelial cell growth and survival in normal and cancerous tissues and is a principal therapeutic target for cancer treatment. EGFR is associated in epithelial cells with the heavily glycosylated transmembrane mucin protein MUC1, a natural ligand of galectin-3 that is overexpressed in cancer. This study reveals that the expression of cell surface MUC1 is a critical enhancer of EGF-induced EGFR activation in human breast and colon cancer cells...
July 21, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28731328/bisphosphonate-functionalized-hydroxyapatite-nanoparticles-for-the-delivery-of-the-bromodomain-inhibitor-jq1-in-the-treatment-of-osteosarcoma
#11
Victoria Wu, Jarrett Mickens, Vuk Uskokovic
Osteosarcoma (OS) is one of the most common neoplasia among children and its survival statistics have been stagnating since the combinatorial anticancer therapy triad was first introduced. Here we report on the assessment of the effect of hydroxyapatite (HAp) nanoparticles loaded with medronate, the simplest bisphosphonate, as a bone-targeting agent and JQ1, a small-molecule bromodomain inhibitor, as a chemotherapeutic in different 2D and 3D K7M2 OS in vitro models. Both additives decreased the crystallinity of HAp, but the effect was more intense for medronate because of its higher affinity for HAp...
July 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28731321/conjugation-dependent-interaction-of-folic-acid-with-folate-binding-protein
#12
Rachel Leah Merzel, Carolina Frey, Junjie Chen, Rachel Garn, Mallory A van Dongen, Casey A Dougherty, Ananda Kandaluru, Philip S Low, E Neil G Marsh, Mark M Banaszak Holl
Serum proteins play a critical role in the transport, uptake, and efficacy of targeted drug therapies, and here we investigate the interactions between folic acid-polymer conjugates and serum folate binding protein (FBP), the soluble form of the cellular membrane-bound folate receptor. We demonstrate that both choice of polymer and method of ligand conjugation affect the interactions between folic acid-polymer conjugates and serum FBP, resulting in changes in the folic acid-induced protein aggregation process...
July 21, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28731290/autoantibodies-against-pfdn2-are-associated-with-an-increased-risk-of-type-2-diabetes-a-case-control-study
#13
Douglas C Chang, Paolo Piaggi, Robert L Hanson, William C Knowler, Clifton Bogardus, Jonathan Krakoff
BACKGROUND: The adaptive immune system is involved in type 2 diabetes mellitus (T2DM), indicating the presence of unidentified autoantibodies that might be useful biomarkers for emerging immunomodulatory therapy. A prior microarray study with a small number of participants suggested the association of novel autoantibodies with T2DM in Southwest American Indians (SAIs). We therefore sought to determine whether antibodies against 14 target proteins are associated with T2DM in a large case-control study...
July 21, 2017: Diabetes/metabolism Research and Reviews
https://www.readbyqxmd.com/read/28731267/heuristic-knowledge-based-planning-for-single-isocenter-stereotactic-radiosurgery-to-multiple-brain-metastases
#14
Benjamin P Ziemer, Parag Sanghvi, Jona Hattangadi-Gluth, Kevin L Moore
PURPOSE: Single-isocenter, volumetric modulated arc therapy (VMAT) stereotactic radiosurgery (SRS) for multiple brain metastases (multi-mets) can deliver highly conformal dose distributions and reduce overall patient treatment time compared to other techniques. However, treatment planning for multi-met cases is highly complex due to variability in numbers and sizes of brain metastases, as well as their relative proximity to organs-at-risk (OARs). The purpose of this study was to automate the VMAT planning of multi-met cases through a knowledge-based planning (KBP) approach that adapts single target SRS dose predictions to multiple target predictions...
July 21, 2017: Medical Physics
https://www.readbyqxmd.com/read/28731186/let-7c-5p-inhibits-cell-proliferation-and-induces-cell-apoptosis-by-targeting-ercc6-in-breast-cancer
#15
Xiaonan Fu, Xuan Mao, Yuxiang Wang, Xianfeng Ding, Yongfeng Li
In this study, we found that let-7c-5p expression was clearly downregulated in breast cancer tissues compared with that of corresponding adjacent tissues. Furthermore, overexpression of let-7c-5p in MCF-7 breast cancer cells could significantly inhibit cell proliferation and induce cell apoptosis. The target genes of let-7c-5p were predicted by the way of bioinformatics, and validated by dual luciferase reporter assay and western blotting demonstrating that excision repair cross complementing 6 (ERCC6) gene was a direct target...
July 19, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28731164/active-targeting-co-delivery-system-based-on-hollow-mesoporous-silica-nanoparticles-for-antitumor-therapy-in-ovarian-cancer-stem-like-cells
#16
Xin Guo, Nan Guo, Jianwen Zhao, Yunlang Cai
The combination of nanocarriers and chemotherapy drugs can release the chemotherapy drugs to the tumor tissue, which can enhance the antitumor effect and reduce the adverse reactions at the same time. In this study, a co-delivery system based on hollow mesoporous silica nanoparticles (HMSN) was developed and characterized. We also investigated the in vitro effect of this system on CD117+CD44+A2780 cell line. HMSN was selected as the nanocarrier, with -COOH modified on the surface and doxorubicin (DOX), NVP-AEW 541 (NVP) loaded inside...
July 18, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28731154/sypl1-overexpression-predicts-poor-prognosis-of-hepatocellular-carcinoma-and-associates-with-epithelial-mesenchymal-transition
#17
Dong-Han Chen, Qiu-Wan Wu, Xiu-Dong Li, Shuang-Jia Wang, Zhi-Ming Zhang
Hepatocellular carcinoma (HCC) is the second leading cause of cancer mortality worldwide, which is mainly due to relapse and metastasis. Synaptophysin-like 1 (SYPL1), a member of SYP family proteins, exerts complicated functions, which prompted us to wonder whether SYPL1 contributed to HCC progress. Herein, we performed integrative experiments of quantitative real-time polymerase chain reaction (qRT-PCR), western blot analysis and immunohistochemistry (IHC), and found that SYPL1 overexpression in HCC tissues was closely correlated with several malignant clinicopathologic features of HCC...
July 21, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28731148/molecular-genetics-and-targeted-therapy-of-wnt-related-human-diseases-review
#18
Masuko Katoh, Masaru Katoh
Canonical WNT signaling through Frizzled and LRP5/6 receptors is transduced to the WNT/β-catenin and WNT/stabilization of proteins (STOP) signaling cascades to regulate cell fate and proliferation, whereas non-canonical WNT signaling through Frizzled or ROR receptors is transduced to the WNT/planar cell polarity (PCP), WNT/G protein-coupled receptor (GPCR) and WNT/receptor tyrosine kinase (RTK) signaling cascades to regulate cytoskeletal dynamics and directional cell movement. WNT/β-catenin signaling cascade crosstalks with RTK/SRK and GPCR-cAMP-PKA signaling cascades to regulate β-catenin phosphorylation and β-catenin-dependent transcription...
July 19, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28731132/mir-374-mediates-the-malignant-transformation-of-gastric-cancer-associated-mesenchymal-stem-cells-in-an-experimental-rat-model
#19
Runbi Ji, Xu Zhang, Hui Qian, Hongbing Gu, Zixun Sun, Fei Mao, Yongmin Yan, Jingyan Chen, Zhaofeng Liang, Wenrong Xu
Mesenchymal stem cells (MSCs) are a critical component of the tumor microenvironment. Upon distinct pathological stimulus, MSCs show phenotypic and functional changes. Gastric cancer is one of the leading causes of cancer‑related deaths worldwide. The roles and mechanisms of MSCs in gastric cancer have not been well characterized. In the present study, we investigated the roles of MSCs in the malignant transformation from gastritis to gastric cancer using an N-methyl-N'-nitro-N-nitrosoguanidine (MNNG)-induced gastric cancer model...
July 18, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28731040/er-stress-and-the-unfolded-protein-response-in-neurodegeneration
#20
REVIEW
Claudio Hetz, Smita Saxena
The clinical manifestation of neurodegenerative diseases is initiated by the selective alteration in the functionality of distinct neuronal populations. The pathology of many neurodegenerative diseases includes accumulation of misfolded proteins in the brain. In physiological conditions, the proteostasis network maintains normal protein folding, trafficking and degradation; alterations in this network - particularly disturbances to the function of endoplasmic reticulum (ER) - are thought to contribute to abnormal protein aggregation...
July 21, 2017: Nature Reviews. Neurology
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