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https://www.readbyqxmd.com/read/28545238/epigenetic-strategies-to-boost-cancer-immunotherapies
#1
REVIEW
Maria J Barrero
Recently, immunotherapeutic approaches have shown impressive responses in a subset of cancer patients. However, the rate of success is low and a large percentage of treated patients do not experience clinical benefits. Therefore, additional strategies are needed to improve responses and select responsive patients. Emerging data suggest that epigenetic drugs can improve the responses to immunotherapy. Understanding the mechanisms of resistance to immunotherapy and the epigenetic events that take place during immune evasion is critical to providing a rational combined use of immunotherapies and epigenetic drugs...
May 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28544853/microrna-34a-protect-myocardial-cells-against-ischemia-reperfusion-injury-through-inhibiting-autophagy-via-regulating-tnf%C3%AE-expression
#2
Haifeng Shao, Lili Yang, Li Wang, Bozan Tang, Jian Wang, Qiang Li
BACKGROUND: Ischemia/reperfusion (I/R) accompanying with the blood supply restored after myocardial infarction. Myocardial I/R injury relieves when autophagy decreased. MicroRNA-34a(miR-34a) regulate autophagy in renal I/R injury model. But whether it can affect cardiac I/R injury remains studying. This study investigated how miR-34a in protecting myocardial cells against I/R injury through inhibit autophagy via regulating tumor necrosis factor α (TNFα) . METHODS: Constructed the I/R model in vivo with Langendorff; treated Neonatal Rat cardiomyocyte to make H/R injury model in vitro with hypoxia/reoxygenation (H/R) method...
May 25, 2017: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/28544822/the-cost-effectiveness-of-tight-control-of-inflammation-in-early-psoriatic-arthritis-economic-analysis-of-the-ticopa-trial
#3
John L O'Dwyer, David M Meads, Claire T Hulme, Lucy McParland, Sarah Brown, Laura C Coates, Anna R Moverley, Paul Emery, Philip G Conaghan, Philip S Helliwell
OBJECTIVE: Treat-to-target approaches have proved to be effective in rheumatoid arthritis, but have not been studied in psoriatic arthritis (PsA). This study was undertaken to examine the cost effectiveness of tight control (TC) of inflammation in early psoriatic arthritis compared to standard care (SC). METHODS: Cost effectiveness analyses were undertaken alongside a UK-based, open-label, multicentre, randomised controlled trial. Taking the perspective of the healthcare sector, effectiveness was measured using EQ-5D-3L which allows the calculation of quality-adjusted life years (QALYs)...
May 23, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28544767/a-poly-propyleneimine-dendrimer-based-polyplex-system-for-single-chain-antibody-mediated-targeted-delivery-and-cellular-uptake-of-sirna
#4
Stefanie Tietze, Isabell Schau, Susanne Michen, Franka Ennen, Andreas Janke, Gabriele Schackert, Achim Aigner, Dietmar Appelhans, Achim Temme
Therapeutics based on small interfering RNAs (siRNAs) offer a great potential to treat so far incurable diseases or metastatic cancer. However, the broad application of siRNAs using various nonviral carrier systems is hampered by unspecific toxic side effects, poor pharmacokinetics due to unwanted delivery of siRNA-loaded nanoparticles into nontarget organs, or rapid renal excretion. In order to overcome these obstacles, several targeting strategies using chemically linked antibodies and ligands have emerged...
May 22, 2017: Small
https://www.readbyqxmd.com/read/28544704/a-cluster-randomized-trial-of-a-behavioral-intervention-to-incorporate-a-treat-to-target-approach-to-care-of-us-patients-with-rheumatoid-arthritis
#5
Leslie R Harrold, George W Reed, Ani John, Christine J Barr, Kevin Soe, Robert Magner, Katherine C Saunders, Eric M Ruderman, Tmirah Haselkorn, Jeffrey D Greenberg, Allan Gibofsky, J Timothy Harrington, Joel M Kremer
OBJECTIVE: To assess the feasibility and efficacy of implementing a treat-to-target (T2T) approach vs usual care (UC) in a US-based cohort of rheumatoid arthritis (RA) patients. METHODS: In this behavioral intervention trial, rheumatology practices were cluster-randomized to provide T2T care or UC. Eligible patients with moderate/high disease activity (Clinical Disease Activity Index [CDAI] > 10) were followed for 12 months. Both T2T and UC patients were seen every 3 months...
May 23, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28544682/hypertension-induced-by-tyrosine-kinase-inhibitors-for-the-treatment-of-renal-cell-carcinoma-in-hemodialysis-patients-a-single-center-experience-and-review-of-the-literature
#6
Kentaro Nakai, Hideki Fujii, Keiji Kono, Shunsuke Goto, Shinichi Nishi
Malignancy is a major cause of mortality in dialysis patients. Although molecular-targeted anticancer drugs, including tyrosine-kinase inhibitors, are used for advanced renal cell carcinoma treatment, there are few reports on their effectiveness and safety in dialysis patients. Renal cell carcinoma dialysis patients treated at our hospital from 2010 to 2013 participated in this study. Thirteen patients were treated with tyrosine-kinase inhibitors and 15 patients with surgery only (control group). During treatment, blood pressure changes and dry weight reduction tended to be greater in the tyrosine-kinase inhibitor group than in controls...
May 23, 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/28544596/deletion-of-the-prostaglandin-d2-receptor-dp1-exacerbates-aging-associated-and-instability-induced-osteoarthritis
#7
Yassine Ouhaddi, Sarah-Salwa Nebbaki, Lauris Habouri, Hassan Afif, Bertrand Lussier, Mohit Kapoor, Shuh Narumiya, Jean-Pierre Pelletier, Johanne Martel-Pelletier, Mohamed Benderdour, Hassan Fahmi
OBJECTIVE: The D prostanoid receptor 1 (DP1), a receptor for prostaglandin D2 (PGD2 ), plays important roles in inflammation and cartilage metabolism. However, its role in the pathogenesis of osteoarthritis (OA) remains unknown. We undertook this study to explore the roles of DP1 in the development of OA and to evaluate the efficacy of a DP1 selective agonist in the treatment of OA. METHODS: We compared the development of aging-associated OA and destabilization of the medial meniscus (DMM)-induced OA in DP1-deficient (DP1-/-) and wild-type (WT) mice...
May 23, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28544579/frizzled7-antibody-functionalized-nanoshells-enable-multivalent-binding-for-wnt-signaling-inhibition-in-triple-negative-breast-cancer-cells
#8
Rachel S Riley, Emily S Day
Antibodies that antagonize cell signaling pathways specific to their targeted receptor are invaluable tools to study and treat malignancies, but their utility is limited by high production costs and treatment dosages. Researchers have shown that antibodies conjugated to nanoparticles display increased affinity for their target relative to freely delivered antibodies due to multivalency, and this study investigates how this multivalency can enable antibody-nanoparticle conjugates to inhibit oncogenic cell signaling more effectively than freely delivered antibodies...
May 22, 2017: Small
https://www.readbyqxmd.com/read/28544521/oral-nucleic-acid-therapy-using-multicompartmental-delivery-systems
#9
REVIEW
Husain Attarwala, Murui Han, Jonghan Kim, Mansoor Amiji
Nucleic acid-based therapeutics has the potential for treating numerous diseases by correcting abnormal expression of specific genes. Lack of safe and efficacious delivery strategies poses a major obstacle limiting clinical advancement of nucleic acid therapeutics. Oral route of drug administration has greater delivery challenges, because the administered genes or oligonucleotides have to bypass degrading environment of the gastrointestinal (GI) tract in addition to overcoming other cellular barriers preventing nucleic acid delivery...
May 24, 2017: Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology
https://www.readbyqxmd.com/read/28544386/skin-mucous-membrane-disorder-and-therapeutic-effect-of-pegylated-liposomal-doxorubicin-in-recurrent-ovarian-cancer
#10
Yuki Yamada, Ryuji Kawaguchi, Fuminori Ito, Kana Iwai, Emiko Niiro, Hiroshi Shigetomi, Yasuhito Tanase, Hiroshi Kobayashi
AIM: Hand-foot syndrome (HFS) induced by chemotherapy and molecule-targeting drugs is correlated with treatment efficacy. We conducted a retrospective analysis to evaluate the relationship between HFS and efficacy of pegylated liposomal doxorubicin (PLD) for recurrent ovarian cancer. METHODS: Patients were treated with PLD between July 2009 and May 2014. We evaluated patient characteristics, incidence of adverse events, clinical benefit (rate of complete response, partial response, and stable disease), progression-free survival, and overall survival...
May 19, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28544171/effectiveness-of-shared-goal-setting-and-decision-making-to-achieve-treatment-targets-in-type-2-diabetes-patients-a-cluster-randomized-trial-optimal
#11
Henk Den Ouden, Rimke C Vos, Guy E H M Rutten
OBJECTIVE: About 20% of patients with type 2 diabetes achieve all their treatment targets. Shared decision making (SDM) using a support aid based on the 5-years results of the ADDITION study on multifactorial treatment, could increase this proportion. RESEARCH DESIGN AND METHODS: Cluster-randomized trial in 35 former ADDITION primary care practices. Practices were randomized to SDM or care as usual (1:1). Both ADDITION and non-ADDITION type 2 diabetes patients, 60-80 years, known with diabetes for 8-12 years, were included...
May 24, 2017: Health Expectations: An International Journal of Public Participation in Health Care and Health Policy
https://www.readbyqxmd.com/read/28543858/survival-improvement-in-human-retinal-pigment-epithelial-cells-via-fas-receptor-targeting-by-mir-374a
#12
Nooshin Tasharrofi, Fatemeh Kouhkan, Masoud Soleimani, Zahra-Sheila Soheili, Mahboubeh Kabiri, Mohaddeseh Mahmoudi Saber, Farid Abedin Dorkoosh
Oxidative conditions of the eye could contribute to retinal cells loss through activating the Fas-L/Fas pathway. This phenomenon is one of the leading causes of some ocular diseases like age-related macular degeneration (AMD). By targeting proteins at their mRNA level, microRNAs (miRNAs) can regulate gene expression and cell function. The aim of the present study is to investigate Fas targeting by miR-374a and find whether it can inhibit Fas-mediated apoptosis in primary human retinal pigment epithelial (RPE) cells under oxidative stress...
May 23, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28543772/parp-inhibitor-rucaparib-induces-changes-in-nad-levels-in-cells-and-liver-tissues-as-assessed-by-mrs
#13
Gilberto S Almeida, Carlo M Bawn, Martin Galler, Ian Wilson, Huw D Thomas, Suzanne Kyle, Nicola J Curtin, David R Newell, Ross J Maxwell
Poly(adenosine diphosphate ribose) polymerases (PARPs) are multifunctional proteins which play a role in many cellular processes. Namely, PARP1 and PARP2 have been shown to be involved in DNA repair, and therefore are valid targets in cancer treatment with PARP inhibitors, such as rucaparib, currently in clinical trials. Proton magnetic resonance spectroscopy ((1) H-MRS) was used to study the impact of rucaparib in vitro and ex vivo in liver tissue from mice, via quantitative analysis of nicotinamide adenosine diphosphate (NAD(+) ) spectra, to assess the potential of MRS as a biomarker of the PARP inhibitor response...
May 22, 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/28543759/abrus-agglutinin-promotes-irreparable-dna-damage-by-triggering-ros-generation-followed-by-atm-p73-mediated-apoptosis-in-oral-squamous-cell-carcinoma
#14
Niharika Sinha, Prashanta Kumar Panda, Prajna Paramita Naik, Durgesh Nandini Das, Subhadip Mukhopadhyay, Tapas K Maiti, Muthu K Shanmugam, Arunachalam Chinnathambi, M E Zayed, Sulaiman Ali Alharbi, Gautam Sethi, Rajesh Agarwal, Sujit K Bhutia
Oral cancer, a type of head and neck cancer, is ranked as one of the top most malignancies in India. Herein, we evaluated the anticancer efficacy of Abrus agglutinin (AGG), a plant lectin, in oral squamous cell carcinoma. AGG selectively inhibited cell growth, and caused cell cycle arrest and mitochondrial apoptosis through a reactive oxygen species (ROS)-mediated ATM-p73 dependent pathway in FaDu cells. AGG-induced ROS accumulation was identified as the major mechanism regulating apoptosis, DNA damage and DNA-damage response, which were significantly reversed by ROS scavenger N-acetylcysteine (NAC)...
May 23, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28543700/interaction-of-molecular-alterations-with-immune-response-in-melanoma
#15
REVIEW
Robert A Szczepaniak Sloane, Vancheswaran Gopalakrishnan, Sangeetha M Reddy, Xue Zhang, Alexandre Reuben, Jennifer A Wargo
Major advances have been made in melanoma treatment with the use of molecularly targeted therapies and immunotherapies, and numerous regimens are now approved by the US Food and Drug Administration for patients with stage IV disease. However, therapeutic resistance remains an issue to both classes of agents, and reliable biomarkers of therapeutic response and resistance are lacking. Mechanistic insights are being gained through preclinical studies and translational research, offering potential strategies to enhance responses and survival in treated patients...
June 1, 2017: Cancer
https://www.readbyqxmd.com/read/28543623/regulatory-effect-of-microrna-34a-on-osteogenesis-and-angiogenesis-in-glucocorticoid-induced-osteonecrosis-of-the-femoral-head
#16
Xiaolong Zha, Bolin Sun, Rufan Zhang, Chen Li, Zuoqin Yan, Jifei Chen
BACKGROUND AND AIMS: Glucocorticoid-induced osteonecrosis of the femoral head (GIOFH) is a common and devastating orthopedic disease, and its underlying mechanism remains unclear. The aim of this study was to determine the role of microRNA-34a (mir-34a) in GIOFH. METHODS: C57 mouse mesenchymal stem cells (mMSCs) and human umbilical vein endothelial cells (HUVECs) were cultured with dexamethasone (Dex). A total of 48 adult rats were treated with glucocorticoids, and after the onset of GIOFH, each femoral head was removed...
May 20, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28543402/a-prediction-model-of-radiation-induced-necrosis-for-intracranial-radiosurgery-based-on-target-volume
#17
Bo Zhao, Ning Wen, Indrin J Chetty, Yimei Huang, Stephen L Brown, Karen Snyder, Farzan Siddiqui, Benjamin Movsas, M Salim Siddiqui
PURPOSE: This study aims to extend the observation that the 12Gy-radiosurgical-volume (V12Gy) correlates with the incidence of radiation necrosis in patients with intracranial tumors treated with radiosurgery by using target volume to predict V12Gy. V12Gy based on the target volume was used to predict the radiation necrosis probability (P) directly. Also investigated was the reduction in radiation necrosis rates (ΔP) as a result of optimizing the prescription isodose lines for linac-based SRS...
May 23, 2017: Medical Physics
https://www.readbyqxmd.com/read/28543283/targeting-pp2a-and-proteasome-activity-ameliorates-features-of-allergic-airway-disease-in-mice
#18
Prema M Nair, Malcolm R Starkey, Tatt Jhong Haw, Gang Liu, Jay C Horvat, Jonathan C Morris, Nikki M Verrills, Andrew R Clark, Alaina J Ammit, Philip M Hansbro
BACKGROUND: Asthma is an allergic airway disease (AAD) caused by aberrant immune responses to allergens. Protein phosphatase-2A (PP2A) is an abundant serine/threonine phosphatase with anti-inflammatory activity. The ubiquitin proteasome system (UPS) controls many cellular processes, including the initiation of inflammatory responses by protein degradation. We assessed if enhancing PP2A activity with Fingolimod (FTY720) or 2-amino-4-(4-(heptyloxy) phenyl)-2-methylbutan-1-ol (AAL(S) ), or inhibiting proteasome activity with Bortezomib (BORT) could suppress experimental AAD...
May 24, 2017: Allergy
https://www.readbyqxmd.com/read/28543181/loss-of-l-selectin-guided-cd8-but-not-cd4-cells-protects-against-ischemia-reperfusion-injury-in-a-steatotic-liver
#19
Vasantha L Kolachala, Sirish Palle, Ming Shen, Alayna Feng, Dmitry Shayakhmetov, Nitika A Gupta
BACKGROUND & AIMS: Steatotic liver responds with increased hepatocellular injury when exposed to an ischemic-reperfusion insult. Increasing evidence supports the role of immune cells as key mediators of this injury in a normal (lean) state, but data about their role in a steatotic liver are practically non-existent. The objective of the current study was to delineate contribution of specific phenotypes of T cells and adhesion molecules in exacerbated cell death in steatotic liver injury...
May 20, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28543038/central-voice-production-and-pathophysiology-of-spasmodic-dysphonia
#20
REVIEW
Niv Mor, Kristina Simonyan, Andrew Blitzer
OBJECTIVE: Our ability to speak is complex, and the role of the central nervous system in controlling speech production is often overlooked in the field of otolaryngology. In this brief review, we present an integrated overview of speech production with a focus on the role of central nervous system. The role of central control of voice production is then further discussed in relation to the potential pathophysiology of spasmodic dysphonia (SD). DATA SOURCES: Peer-review articles on central laryngeal control and SD were identified from PUBMED search...
May 23, 2017: Laryngoscope
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