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https://www.readbyqxmd.com/read/28944962/hpv-e6-protein-enriches-the-cd55-population-in-cervical-cancer-cells-promoting-radio-resistance-and-cancer-aggressiveness
#1
Thomas Ho-Yin Leung, Hermit Wai-Man Tang, Michelle Kwan-Yee Siu, David Wai Chan, Karen Kar-Loen Chan, Annie Nga-Yin Cheung, Hextan Yuen-Sheung Ngan
Accumulating evidence indicates that the human papilloma virus (HPV) E6 protein plays a crucial role in the development of cervical cancer. Sub-populations of cells that reside within tumors are responsible for tumor resistance to cancer therapy and recurrence. However, the identity of such cells residing in cervical cancer and their relationship with the HPV-E6 protein have not been identified. Here, we isolated sphere-forming cells, which exhibited self-renewal ability, from primary cervical tumors. Gene expression profiling revealed that CD55 was upregulated in primary cervical cancer sphere cells...
September 25, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28944922/microrna%C3%A2-372-inhibits-proliferation-and-induces-apoptosis-in-human-breast-cancer-cells-by-directly-targeting-e2f1
#2
Ya-Xin Zhao, Hua-Cheng Liu, Wei-Yang Ying, Cheng-Yu Wang, Yao-Jun Yu, Wei-Jian Sun, Jie-Fan Liu
Breast cancer is the most prevalent cancer and the leading cause of cancer‑associated mortalities among women worldwide today. Accumulating evidence suggested that miR‑372 may serve important roles in the initiation and development of various human cancers. However, the role of miR‑372 in breast cancer remains unknown. The present study demonstrated that the expression level of miR‑372 in human breast cancer tissues and cell lines is significantly reduced compared with normal breast tissues cell lines...
September 22, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944917/application-of-a-co%C3%A2-expression-network-for-the-analysis-of-aggressive-and-non%C3%A2-aggressive-breast-cancer-cell-lines-to-predict-the-clinical-outcome-of-patients
#3
Ling Guo, Kun Zhang, Zhitong Bing
Breast cancer metastasis is a demanding problem in clinical treatment of patients with breast cancer. It is necessary to examine the mechanisms of metastasis for developing therapies. Classification of the aggressiveness of breast cancer is an important issue in biological study and for clinical decisions. Although aggressive and non‑aggressive breast cancer cells can be easily distinguished among different cell lines, it is very difficult to distinguish in clinical practice. The aim of the current study was to use the gene expression analysis from breast cancer cell lines to predict clinical outcomes of patients with breast cancer...
September 25, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944911/microrna%C3%A2-3666-inhibits-breast-cancer-cell-proliferation-by-targeting-sirtuin-7
#4
Di Li, Lifei Li
The abnormal expression of microRNAs (miRNAs) is associated with cancer initiation and progression. miRNAs functioning as oncogenes or tumor suppressors represent novel biomarkers for cancer diagnosis, prognosis, and serve as therapeutic tools. MiR‑3666 has been reported as a tumor suppressor in various types of cancer; however, its role in breast cancer remains unknown. In the current study, the aim was to investigate the potential role of miR‑3666 in breast cancer. It was identified that miR‑3666 was decreased in breast cancer cell lines and that the overexpression of miR‑3666 inhibited breast cancer cell proliferation...
September 25, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944824/efficient-gene-therapy-with-a-combination-of-ultrasound%C3%A2-targeted-microbubble-destruction-and-pei-dna-nls-complexes
#5
Yi-Jia Wang, Qing Zhou, Sheng Cao, Bo Hu, Qing Deng, Nan Jiang, Jingjing Cui
Current strategies of gene transfection are not efficient at achieving a notable therapeutic effect. The aim of the present study was to combine ultrasound‑targeted microbubble destruction (UTMD) with a polyethylenimine/pEGFP‑N3 plasmid/nuclear localization sequence (PEI/DNA/NLS) complex gene delivery system, and evaluate the transfection efficiency of enhanced green fluorescent protein (EGFP) gene delivery to 293T cells using this system. The formation of PEI/DNA/NLS complexes and the protective effects of PEI/NLS were verified by gel electrophoresis...
September 18, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944565/novel-tetrahydroacridine-derivatives-with-iodobenzoic-acid-moiety-as-multifunctional-acetylcholinesterase-inhibitors
#6
Robert Skibiński, Kamila Czarnecka, Małgorzata Girek, Ireneusz Bilichowski, Nina Chufarova, Elżbieta Mikiciuk-Olasik, Paweł Szymański
New synthesized series of 9-amino-1,2,3,4-tetrahydroacridine derivatives with iodobenzoic acid moiety were studied for their inhibitory activity towards cholinesterase and against β-amyloid aggregation. All novel molecules 3a-3i interacted with both cholinesterases - acetylcholinesterase and butyrylcholinesterase, delivered nanomolar IC50 values. The structure-activity relationship showed that N-butyl moiety derivatives are stronger inhibitors towards AChE and BuChE than N-ethyl and N-propyl moieties compounds...
September 25, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28944490/hybrid-ultrasound-mr-guided-hifu-treatment-method-with-3d-motion-compensation
#7
Zarko Celicanin, Gibran Manasseh, Lorena Petrusca, Klaus Scheffler, Vincent Auboiroux, Lindsey A Crowe, Jean-Noel Hyacinthe, Yutaka Natsuaki, Francesco Santini, Christoph D Becker, Sylvain Terraz, Oliver Bieri, Rares Salomir
PURPOSE: Treatments using high-intensity focused ultrasound (HIFU) in the abdominal region remain challenging as a result of respiratory organ motion. A novel method is described here to achieve 3D motion-compensated ultrasound (US) MR-guided HIFU therapy using simultaneous ultrasound and MRI. METHODS: A truly hybrid US-MR-guided HIFU method was used to plan and control the treatment. Two-dimensional ultrasound was used in real time to enable tracking of the motion in the coronal plane, whereas an MR pencil-beam navigator was used to detect anterior-posterior motion...
September 24, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28944303/resveratrol-and-exercise-to-treat-functional-limitations-in-late-life-design-of-a-randomized-controlled-trial
#8
Andrew S Layne, Lisa M Krehbiel, Robert T Mankowski, Stephen D Anton, Christiaan Leeuwenburgh, Marco Pahor, Bhanuprasad Sandesara, Samuel S Wu, Thomas W Buford
Skeletal muscle mitochondrial function declines with age and is a key factor in the maintenance of physical function among older adults. Research studies from animals and humans have consistently demonstrated that exercise improves skeletal muscle mitochondrial function in early and middle adulthood. However, mitochondrial adaptations to both acute and chronic exercise are attenuated in late life. Thus, there is an important need to identify adjuvant therapies capable of augmenting mitochondrial adaptations to exercise (e...
June 2017: Contemporary Clinical Trials Communications
https://www.readbyqxmd.com/read/28944120/treatment-of-male-breast-cancer-by-dual-human-epidermal-growth-factor-receptor-2-her2-blockade-and-response-prediction-using-novel-optical-tomography-imaging-a-case-report
#9
Debasmita Saha, Susan Tannenbaum, Quing Zhu
Male breast cancer, although rare, is on the rise. Prospective clinical trials are unlikely and current management mirrors that of post-menopausal women. Neoadjuvant chemotherapy is widely used and pathologic complete response (pCR) predicts long-term survival. The addition of dual HER2 (human epidermal growth factor receptor 2) blockade has shown the highest pCR rates; however, there is no published data of this approach in men. Also, newer monitoring tools are necessary during a neoadjuvant therapy to help personalize treatment...
July 17, 2017: Curēus
https://www.readbyqxmd.com/read/28943939/low-expression-of-microrna-1908-predicts-a-poor-prognosis-for-patients-with-ovarian-cancer
#10
Changcai Teng, Hong Zheng
MicroRNAs (miRs) serve important roles in cancer genesis and progression. The expression of miR-1908 has been reported in a number of types of cancer; however, the clinical significance of miR-1908 in human ovarian cancer (OC) remains unclear. A total of 491 patients with OC from The Cancer Genome Atlas project cohort were selected and divided into two groups according to the median expression level of miR-1908. Univariate and multivariate analyses, using the Kaplan-Meier method and Cox regression, were performed to identify the characteristics that predict OC prognosis...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28943923/specific-expression-of-proton-coupled-oligopeptide-transporter-1-in-primary-hepatocarcinoma-a-novel-strategy-for-tumor-targeted-therapy
#11
Yanxia Gong, Jie Zhang, Xiang Wu, Tao Wang, Jia Zhao, Zhi Yao, Qingyu Zhang, Xi Liu, Xu Jian
Proton-coupled oligopeptide transporter 1 (PEPT1) is a membrane protein which expressed predominantly in intestine and recognized as the target of dietary nutrients (di/tripeptide) or peptidomimetic drug for delivery. The information on the existence of PEPT1 in carcinomas were limited. Our study aimed to investigate the expression profile and transport activity of PEPT1 both in human hepatocarcinoma tissues and cell lines. Western blotting and an immunofluorescence assay revealed the high level of PEPT1 protein expression in hepatocarcinoma Bel-7402, SMMC-7721, HepG2, HEP3B, SK-HEP-1 cell lines...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28943876/dysbiosis-of-the-urinary-microbiota-associated-with-urine-levels-of-proinflammatory-chemokine-interleukin-8-in-female-type-2-diabetic-patients
#12
Zongxin Ling, Fengping Liu, Li Shao, Yiwen Cheng, Lanjuan Li
Evidence has shown that dysbiosis of the urinary microbiota existed in female type 2 diabetes mellitus (T2DM) patients. Perturbations of intestinal microbiota are linked to proinflammatory chemokine interleukin-8 (IL-8); however, the correlations between urinary microbiota and IL-8 are not well studied. Here, we investigated the associations between the altered urinary microbiota and urinary IL-8 in female T2DM patients. A modified four-tube midstream urine technique was used to collect urine specimens from 70 female T2DM patients and 70 matched healthy controls (HCs)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28943839/cellular-chaperones-as-therapeutic-targets-in-als-to-restore-protein-homeostasis-and-improve-cellular-function
#13
REVIEW
Bernadett Kalmar, Linda Greensmith
Heat shock proteins (Hsps) are ubiquitously expressed chaperone proteins that enable cells to cope with environmental stresses that cause misfolding and denaturation of proteins. With aging this protein quality control machinery becomes less effective, reducing the ability of cells to cope with damaging environmental stresses and disease-causing mutations. In neurodegenerative disorders such as Amyotrophic Lateral Sclerosis (ALS), such mutations are known to result in protein misfolding, which in turn results in the formation of intracellular aggregates cellular dysfunction and eventual neuronal death...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28943305/targeting-the-cancer-epigenome-synergistic-therapy-with-bromodomain-inhibitors
#14
REVIEW
Mahalakshmi Ramadoss, Vijayalakshmi Mahadevan
Epigenetic and genomic alterations regulate the transcriptional landscape of cells during cancer onset and progression. Recent clinical studies targeting the epigenetic 'readers' (bromodomains) for cancer therapy have established the effectiveness of bromodomain (BRD) extraterminal (BET) inhibitors in treating several types of cancer. In this review, we discuss key mechanisms of BET inhibition and synergistic combinations of BET inhibitors with histone deacetylase inhibitors (HDACi), histone methyltransferase inhibitors (HMTi), DNA methyltransferase inhibitors (DNMTi), kinase, B-cell lymphoma 2 (Bcl-2) and proteosome inhibitors, and immunomodulatory drugs for cancer therapy...
September 21, 2017: Drug Discovery Today
https://www.readbyqxmd.com/read/28943196/recent-advances-in-drug-discovery-of-phototherapeutic-non-porphyrinic-anticancer-agents
#15
REVIEW
Maria Dichiara, Orazio Prezzavento, Agostino Marrazzo, Valeria Pittalà, Loredana Salerno, Antonio Rescifina, Emanuele Amata
In the search of novel strategies for the treatment of cancer, photodynamic therapy (PDT) has emerged as an effective, safe for repeated use, and non-invasive method. This technique involves the use of two major non-toxic components, a photosensitizer (PS) and a visible or near-infrared (NIR) light source, combined to induce cellular damage in an oxygen-dependent or -independent manner. Macrocyclic compounds, involving porphyrin and their derivatives, represent the major class of PS agents used in PDT. However, due to the drawbacks associated with these PS, like photosensitivity, dark toxicity, and low wavelength absorbance, new classes of PS appear to be needed...
September 4, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28943106/at2-receptor-agonist-compound-21-a-silver-lining-for-diabetic-nephropathy
#16
REVIEW
Anuradha Pandey, Anil Bhanudas Gaikwad
The currently available therapies for diabetic nephropathy, one of the leading causes of renal failure globally are based on inhibition of renin angiotensin system. However, recently, the focus has shifted towards activation of its protective arm rather than the inhibition of deteriorative axis, using specific agonists. Compound 21 (C21), a novel non-peptide Angiotensin II type 2 receptor (AT2) agonist, recently granted orphan drug status for the treatment of a rare disease, idiopathic pulmonary fibrosis has also shown a potent anti-inflammatory, anti-fibrotic, antioxidant and anti-apoptotic potential in various diseases including heart failure, myocardial infarction, chronic inflammatory diseases, and neurological diseases such as ischemic stroke...
September 21, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28943101/inhibition-of-transglutaminase-2-activity-increases-cisplatin-cytotoxicity-in-a-model-of-human-hepatocarcinoma-chemotherapy
#17
Dipak D Meshram, Claire V S Pike, Peter J Coussons
Transglutaminase 2 (TG2) is a ubiquitous multifunctional enzyme whose expression has been found to be altered in numerous studies of apoptosis and cell survival; its activity has been found to be increased in many types of cancer, where it is often over-expressed. Cisplatin has long been used as an effective therapeutic drug to treat numerous cancers. Although its activity is based on cross-linking of DNA, cisplatin may also operate via other mechanisms that involve modification and alteration in the activity of protein and RNA modulators of the cell cycle and apoptotic processes; these mechanisms are less well characterised...
September 21, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28943075/a-novel-absorbable-radiopaque-hydrogel-spacer-to-separate-the-head-of-the-pancreas-and-duodenum-in-radiation-therapy-for-pancreatic-cancer
#18
Avani D Rao, Ziwei Feng, Eun Ji Shin, Jin He, Kevin M Waters, Stephanie Coquia, Robert DeJong, Lauren M Rosati, Lin Su, Dengwang Li, Juan Jackson, Stephen Clark, Jeffrey Schultz, Danielle Hutchings, Seong-Hun Kim, Ralph H Hruban, Theodore L DeWeese, John Wong, Amol Narang, Joseph M Herman, Kai Ding
PURPOSE: We assessed the feasibility and theoretical dosimetric advantages of an injectable hydrogel to increase the space between the head of the pancreas (HOP) and duodenum in a human cadaveric model. METHODS AND MATERIALS: Using 3 human cadaveric specimens, an absorbable radiopaque hydrogel was injected between the HOP and duodenum by way of open laparotomy in 1 case and endoscopic ultrasound (EUS) guidance in 2 cases. The cadavers were subsequently imaged using computed tomography and dissected for histologic confirmation of hydrogel placement...
August 14, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28943002/a-feasibility-double-blind-randomized-placebo-controlled-trial-of-extracorporeal-shockwave-therapy-as-a-novel-treatment-for-intermittent-claudication
#19
Amy Elizabeth Harwood, Jordan Green, Thomas Cayton, Ali Raza, Tom Wallace, Daniel Carradice, Ian Clifford Chetter, George Edward Smith
BACKGROUND: Intermittent claudication is the most common symptom of peripheral arterial disease. Previous research has suggested that extracorporeal shockwave therapy (ESWT) may induce angiogenesis in treated tissue. The objective of this feasibility pilot trial was to assess the safety, tolerability, and efficacy of ESWT as a novel treatment. METHODS: Patients with unilateral claudication were randomized to receive ESWT or sham treatment to the calf muscle three times per week for 3 weeks...
September 21, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28942840/apoptosis-induced-by-staphylococcus-aureus-toxins
#20
REVIEW
Xiaopeng Zhang, Xiaomei Hu, Xiancai Rao
Apoptosis stimulated by bacterial toxins is common during infection and is now considered important in disease processes. As a major human pathogen, Staphylococcus aureus also causes apoptosis during infection. In some diseases such as atopic dermatitis and sepsis, the apoptosis induced by S. aureus influences the severity and outcome of diseases. S. aureus has various toxins, many of which have reportedly triggered apoptosis. In this review, we focused on the apoptosis-inducing toxins secreted by S. aureus, and their underlying mechanisms...
December 2017: Microbiological Research
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