keyword
MENU ▼
Read by QxMD icon Read
search

Dna enhancer

keyword
https://www.readbyqxmd.com/read/29050289/acrolein-induces-mtdna-damages-mitochondrial-fission-and-mitophagy-in-human-lung-cells
#1
Hsiang-Tsui Wang, Jing-Heng Lin, Chun-Hsiang Yang, Chun-Hao Haung, Ching-Wen Weng, Anya Maan-Yuh Lin, Yu-Li Lo, Wei-Shen Chen, Moon-Shong Tang
Acrolein (Acr), a highly reactive unsaturated aldehyde, can cause various lung diseases including asthma, chronic obstructive pulmonary disease (COPD), and lung cancer. We have found that Acr can damage not only genomic DNA but also DNA repair proteins causing repair dysfunction and enhancing cells' mutational susceptibility. While these effects may account for Acr lung carcinogenicity, the mechanisms by which Acr induces lung diseases other than cancer are unclear. In this study, we found that Acr induces damages in mitochondrial DNA (mtDNA), inhibits mitochondrial bioenergetics, and alters mtDNA copy number in human lung epithelial cells and fibroblasts...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29048625/myeloid-zinc-finger-1-protein-is-a-key-transcription-stimulating-factor-of-pyroxd2-promoter
#2
Huilin Liu, Xingyan Jiang, Tao Wang, Fang Yu, Xingzhi Wang, Jiaojiao Chen, Xiaoyuan Xie, Handong Fan
Previous studies revealed that PYROXD2 was more highly expressed in normal liver tissue and liver cell lines than in cancer tissue and cancer cell lines, which indicated that decreased PYROXD2 expression may be involved in hepatocarcinogenesis. To identify the mechanisms which regulate PYROXD2 gene transcription, we constructed a series of luciferase reporter plasmids and used them to perform luciferase‑based reporter assays with HepG2, Sk-hep1, L02 and 293T cells with the purpose of characterizing the PYROXD2 reporter region...
September 22, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29048611/human-cytomegalovirus-infection-enhances-cell-proliferation-migration-and-upregulation-of-emt-markers-in-colorectal-cancer-derived-stem-cell-like-cells
#3
Wan Huai Teo, Hsin-Pai Chen, Jason C Huang, Yu-Jiun Chan
Increasing evidence suggests a link between persistent human cytomegalovirus (HCMV) infection and cancer. Although the role of HCMV in cancer is still elusive, recent studies revealed the presence of HCMV nucleic acids and proteins in different cancer types such as glioblastoma, colorectal, breast, and prostate cancers, and neuroblastoma. Although HCMV may not be directly associated with the neoplastic transformation, the presence of HCMV DNA in the tumorous tissue has been associated with altered clinical outcomes in cancer patients...
September 25, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/29048538/improvement-of-foxp3-stability-through-cns2-demethylation-by-tet-enzyme-induction-and-activation
#4
Kazue Someya, Hiroko Nakatsukasa, Minako Ito, Taisuke Kondo, Kenn-Ichi Tateda, Takashi Akanuma, Ikuko Koya, Tsukasa Sanosaka, Jun Kohyama, Yu-Ichi Tsukada, Takeji Takamura-Enya, Akihiko Yoshimura
Since induced regulatory T cells (iTregs) can be produced in a large quantity in vitro, these cells are expected to be clinically useful to induce immunological tolerance in various immunological diseases. Foxp3 (Forkhead box P3) expression in iTregs is, however, unstable due to the lack of demethylation of the CpG island in the conserved non-coding sequence 2 (CNS2) of the Foxp3 locus. To facilitate the demethylation of CNS2, we over-expressed the catalytic domain (CD) of the ten-eleven translocation (TET) protein, which catalyzes the steps of the iterative demethylation of 5-methylcytosine...
August 1, 2017: International Immunology
https://www.readbyqxmd.com/read/29048375/construction-of-a-bivalent-thrombin-binding-aptamer-and-its-antidote-with-improved-properties
#5
Quintin W Hughes, Bao T Le, Grace Gilmore, Ross I Baker, Rakesh N Veedu
Aptamers are short synthetic DNA or RNA oligonucleotides that adopt secondary and tertiary conformations based on Watson-Crick base-pairing interactions and can be used to target a range of different molecules. Two aptamers, HD1 and HD22, that bind to exosites I and II of the human thrombin molecule, respectively, have been extensively studied due to their anticoagulant potentials. However, a fundamental issue preventing the clinical translation of many aptamers is degradation by nucleases and reduced pharmacokinetic properties requiring higher dosing regimens more often...
October 19, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29047390/roles-of-bccip-deficiency-in-mammary-tumorigenesis
#6
Roberto Droz-Rosario, Huimei Lu, Jingmei Liu, Ning-Ang Liu, Shridar Ganesan, Bing Xia, Bruce G Haffty, Zhiyuan Shen
BACKGROUND: Dysregulated DNA repair and cell proliferation controls are essential driving forces in mammary tumorigenesis. BCCIP was originally identified as a BRCA2 and CDKN1A interacting protein that has been implicated in maintenance of genomic stability, cell cycle regulation, and microtubule dynamics. The aims of this study were to determine whether BCCIP deficiency contributes to mammary tumorigenesis, especially for a subset of breast cancers with 53BP1 abnormality, and to reveal the mechanistic implications of BCCIP in breast cancer interventions...
October 18, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/29047281/development-of-wheat-bran-oil-concentrates-rich-in-bioactives-with-antioxidant-and-hypolipidemic-properties
#7
Sharanappa Talawar, Nanishankar V Harohally, Chethana Ramakrishna, G Suresh Kumar
Wheat bran, an abundant by-product of milling industry, comprises fat soluble bioactives and fibres. In the present study, two concentrates were prepared from wheat bran oil (WBO) using silicic acid coupled with acetone (WBA) and hexane (WBH). WBA extract had enhanced color, viscosity and was also enriched with fat soluble bioactives (sterols, oryzanol-like compounds, tocopherols and carotenoids) as evidenced from NMR and other techniques. In in vitro studies, WBA exhibited significant free radical scavenging activity, limited DNA and LDL oxidation, inhibition of HMG-CoA reductase and lipase activity than WBH and WBO...
October 19, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29047229/enhanced-inflammation-and-attenuated-tumor-suppressor-pathways-are-associated-with-oncogene-induced-lung-tumors-in-aged-mice
#8
Neha Parikh, Ryan L Shuck, Mihai Gagea, Lanlan Shen, Lawrence A Donehower
Aging is often accompanied by a dramatic increase in cancer susceptibility. To gain insights into how aging affects tumor susceptibility, we generated a conditional mouse model in which oncogenic Kras(G12D) was activated specifically in lungs of young (3-5 months) and old (19-24 months) mice. Activation of Kras(G12D) in old mice resulted in shorter survival and development of higher-grade lung tumors. Six weeks after Kras(G12D) activation, old lung tissues contained higher numbers of adenomas than their young tissue counterparts...
October 18, 2017: Aging Cell
https://www.readbyqxmd.com/read/29047177/selected-hepatoprotective-herbal-medicines-evidence-from-ethnomedicinal-applications-animal-models-and-possible-mechanism-of-actions
#9
REVIEW
Muhammad Ali, Tariq Khan, Kaneez Fatima, Qurat Ul Ain Ali, Muhammad Ovais, Ali Talha Khalil, Ikram Ullah, Abida Raza, Zabta Khan Shinwari, Muhammad Idrees
Insight into the hepatoprotective effects of medicinally important plants is important, both for physicians and researchers. Main reasons for the use of herbal medicine include their lesser cost compared with conventional drugs, lesser undesirable drug reactions and thus high safety, and reduced side effects. The present review focuses on the composition, pharmacology, and results of experimental trials of selected medicinal plants: Silybum marianum (L.) Gaertn., Glycyrrhiza glabra, Phyllanthus amarus Schumach...
October 19, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/29047044/exosomes-for-the-enhanced-tissue-bioavailability-and-efficacy-of-curcumin
#10
Farrukh Aqil, Radha Munagala, Jeyaprakash Jeyabalan, Ashish Kumar Agrawal, Ramesh Gupta
Exosomes are extracellular microvesicles with a particle size of 30-100 nm and carry a cargo of proteins, lipids, RNA, and DNA. Their properties of shuttling in-and-out of the cells suggest that these particles can be exploited as a nano drug carrier. In this manuscript, we show that curcumin can be delivered effectively using milk-derived exosomes. Curcumin when mixed with exosomes in the presence of 10% ethanol:acetonitrile (1:1) provided a drug load of 18-24%, and the formulation stored at - 80°C was stable for 6 months as determined by particle size analysis, drug load, and antiproliferative activity...
October 18, 2017: AAPS Journal
https://www.readbyqxmd.com/read/29046735/identification-of-a-key-role-of-widespread-epigenetic-drift-in-barrett-s-esophagus-and-esophageal-adenocarcinoma
#11
E Georg Luebeck, Kit Curtius, William D Hazelton, Sean Maden, Ming Yu, Prashanthi N Thota, Deepa T Patil, Amitabh Chak, Joseph E Willis, William M Grady
BACKGROUND: Recent studies have identified age-related changes in DNA methylation patterns in normal and cancer tissues in a process that is called epigenetic drift. However, the evolving patterns, functional consequences, and dynamics of epigenetic drift during carcinogenesis remain largely unexplored. Here we analyze the evolution of epigenetic drift patterns during progression from normal squamous esophagus tissue to Barrett's esophagus (BE) to esophageal adenocarcinoma (EAC) using 173 tissue samples from 100 (nonfamilial) BE patients, along with publically available datasets including The Cancer Genome Atlas (TCGA)...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/29046140/amplification-of-arsenic-genotoxicity-by-tio2-nanoparticles-in-mammalian-cells-new-insights-from-physicochemical-interactions-and-mitochondria
#12
Xinan Wang, Yun Liu, Juan Wang, Yaguang Nie, Shaopeng Chen, Tom K Hei, Zhaoxiang Deng, Lijun Wu, Guoping Zhao, An Xu
Titanium dioxide nanoparticles (TiO2 NPs) have shown great adsorption capacity for arsenic (As); however, the potential impact of TiO2 NPs on the behavior and toxic responses of As remains largely unexplored. In the present study, we focused on the physicochemical interaction between TiO2 NPs and As(III) to clarify the underlying mechanisms involved in their synergistic genotoxic effect on mammalian cells. Our data showed that As(III) mainly interacted with TiO2 NPs by competitively occupying the sites of hydroxyl groups on the surface of TiO2 NP aggregates, resulting in more aggregation of TiO2 NPs...
October 18, 2017: Nanotoxicology
https://www.readbyqxmd.com/read/29045554/veliparib-with-temozolomide-or-carboplatin-paclitaxel-versus-placebo-with-carboplatin-paclitaxel-in-patients-with-brca1-2-locally-recurrent-metastatic-breast-cancer-randomized-phase-ii-study
#13
H S Han, V Diéras, M Robson, M Palácová, P K Marcom, A Jager, I Bondarenko, D Citrin, M Campone, M L Telli, S M Domchek, M Friedlander, B Kaufman, J E Garber, Y Shparyk, E Chmielowska, E H Jakobsen, V Kaklamani, W Gradishar, C K Ratajczak, C Nickner, Q Qin, J Qian, S P Shepherd, S J Isakoff, S Puhalla
Background: Homologous recombination defects in BRCA1/2-mutated tumors result in sensitivity to poly(ADP-ribose) polymerase (PARP) inhibitors, which interfere with DNA damage repair. Veliparib, a potent PARP inhibitor, enhanced the antitumor activity of platinum agents and temozolomide in early phase clinical trials. This phase II study examined the safety and efficacy of intermittent veliparib with carboplatin/paclitaxel (VCP) or temozolomide (VT) in patients with BRCA1/2-mutated breast cancer...
September 29, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29045530/tracking-evolution-of-aromatase-inhibitor-resistance-with-circulating-tumour-dna-analysis-in-metastatic-breast-cancer
#14
Charlotte Fribbens, Isaac Garcia Murillas, Matthew Beaney, Sarah Hrebien, Ben O'Leary, Lucy Kilburn, Karen Howarth, Michael Epstein, Emma Green, Nitzan Rosenfeld, Alistair Ring, Stephen Johnston, Nicholas Turner
Background: Selection of resistance mutations may play a major role in the development of endocrine resistance. ESR1 mutations are rare in primary breast cancer but have high prevalence in patients treated with aromatase inhibitors (AI) for advanced breast cancer. We investigated the evolution of genetic resistance to first line AI therapy using sequential ctDNA sampling in patients with advanced breast cancer. Patients and Methods: 83 patients on first line AI therapy for metastatic breast cancer were enrolled in a prospective study...
October 4, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29045141/internal-motions-of-basic-side-chains-of-the-antennapedia-homeodomain-in-the-free-and-dna-bound-states
#15
Dan Nguyen, Zoe A Hoffpauir, Junji Iwahara
Basic side chains play crucial roles in protein-DNA interactions. In this study, using NMR spectroscopy, we investigated the dynamics of Arg and Lys side chains of the fruit fly Antennapedia homeodomain in the free state and in the complex with target DNA. We measured (15)N relaxation for Arg and Lys side chains at two magnetic fields, from which generalized order parameters for the cationic groups were determined. Mobility of the R5 side chain, which makes hydrogen bonds with a thymine base in the DNA minor groove, was greatly dampened...
October 18, 2017: Biochemistry
https://www.readbyqxmd.com/read/29045058/loop-mediated-isothermal-amplification-lamp-as-an-alternative-to-pcr-a-rapid-on-site-detection-of-gene-doping
#16
Olivier Salamin, Tiia Kuuranne, Martial Saugy, Nicolas Leuenberger
Innovation in medical research has been diverted at multiple occasions to enhance human performance. The predicted great progress in gene therapy has raised some concerns regarding its misuse in the world of sports (gene doping) for several years now. Even though there is no evidence that gene doping has ever been used in sports, the continuous improvement of gene therapy techniques increases the likelihood of abuse. Therefore, since 2004, efforts have been invested by the anti-doping community and WADA for the development of detection methods...
October 17, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/29044724/tea-polyphenols-for-the-prevention-of-uvb-induced-skin-cancer
#17
REVIEW
Pooja Sharma, Mary Katherine Montes de Oca, Amena R Alkeswani, Sarah F McClees, Tanushree Das, Craig A Elmets, Farrukh Afaq
Skin cancer is the most common type of cancer with increasing incidence rate and public health burden. Solar Ultraviolet (UV) radiation causes an array of damaging cellular and molecular events that eventually lead to the development of skin cancer. Despite increased awareness about sun protection, the exposure rate remains high with less than 15% of men and 30% of women using sunscreen on a regular basis. Therefore, there is an imperative need for the development of novel preventive approaches. Skin cancer chemoprevention using phytochemicals either as dietary supplements or by topical applications has gained considerable attention due to their low toxicity, availability, and anti-carcinogenic properties...
October 16, 2017: Photodermatology, Photoimmunology & Photomedicine
https://www.readbyqxmd.com/read/29044596/angelicin-potentiates-trail-induced-apoptosis-in-renal-carcinoma-caki-cells-through-activation-of-caspase-3-and-down-regulation-of-c-flip-expression
#18
Kyoung-Jin Min, Hee Jung Um, Seung Un Seo, Seon Min Woo, Shin Kim, Jong-Wook Park, Hyun-Shik Lee, Sang Hyun Kim, Yung Hyun Choi, Tae-Jin Lee, Taeg Kyu Kwon
Preclinical Research & Development Angelicin is a furocoumarin derived from Psoralea corylifolia L. fruit that has anti-inflammatory and anti-tumor activity. In the present study, the effect of angelicin in enhancing tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)-induced apoptotic cell death was studied in Caki (renal carcinoma) cells. Angelicin alone and TRAIL alone had no effect on apoptosis, but in combination these compounds markedly induced apoptosis in the cancer cell lines while not inducing apoptosis in normal cells...
October 16, 2017: Drug Development Research
https://www.readbyqxmd.com/read/29044514/ccdc6-the-identity-of-a-protein-known-to-be-partner-in-fusion
#19
REVIEW
Aniello Cerrato, Francesco Merolla, Francesco Morra, Angela Celetti
Coiled Coil Domain Containing 6 gene, CCDC6, was initially isolated as part of a tumorigenic DNA originated by the fusion of CCDC6 with the tyrosine kinase of RET receptor, following a paracentric inversion of chromosome 10. For a long time CCDC6 has been considered as an accidental partner of the RET protooncogene, providing the promoter and the first 101 aa necessary for the constitutive activation of the oncogenic Tyrosine Kinase (TK) RET in thyroid cells. With the advent of more refined diagnostic tools and bioinformatic algorithms, an exponential growth in fusion genes discoveries has allowed the identification of CCDC6 as partner of genes other than RET in different tumor types...
October 16, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29043366/distance-dependent-photoacoustics-revealed-through-dna-nanostructures
#20
James Joseph, Kevin N Baumann, Philipp Koehler, Tim J Zuehlsdorff, Daniel J Cole, Judith Weber, Sarah E Bohndiek, Silvia Hernández-Ainsa
Molecular rulers that rely on the Förster resonance energy transfer (FRET) mechanism are widely used to investigate dynamic molecular processes that occur on the nanometer scale. However, the capabilities of these fluorescence molecular rulers are fundamentally limited to shallow imaging depths by light scattering in biological samples. Photoacoustic tomography (PAT) has recently emerged as a high resolution modality for in vivo imaging, coupling optical excitation with ultrasound detection. In this paper, we report the capability of PAT to probe distance-dependent FRET at centimeter depths...
October 18, 2017: Nanoscale
keyword
keyword
91078
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"