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https://www.readbyqxmd.com/read/28223025/transcriptional-regulation-of-human-paraoxonase-1-by-nuclear-receptors
#1
REVIEW
N Ponce-Ruiz, F E Murillo-González, A E Rojas-García, Mike Mackness, Y Y Bernal-Hernández, B S Barrón-Vivanco, C A González-Arias, I M Medina-Díaz
Paraoxonase 1 (PON1) is a calcium-dependent esterase synthesized primarily in the liver and secreted into the plasma, where it is associates with high density lipoproteins (HDL). PON1 acts as antioxidant preventing low-density lipoprotein (LDL) oxidation which is believed to be critical in the initiation and progression of atherosclerosis. Additionally, PON1 hydrolyzes and detoxifies some toxic metabolites of organophosphorus compounds (OPs). Thus, PON1 activity and expression levels are important for determining susceptibility to OPs intoxication and risk of diseases related to inflammation and oxidative stress...
February 18, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28220241/-icd-in-elderly-patients
#2
Carsten W Israel
Treatment with an implantable cardioverter-defibrillator (ICD) represents a prognostic but not symptomatic therapy. It should therefore be restricted to patients where an improvement of prognosis is possible and reasonable. ICD implantation should only be performed in patients with a life expectancy of at least 1 year at reasonable quality of life. The decision in which patient improvement of prognosis is no longer a desirable target is problematic, both medically and ethically. It is not entirely clear in which elderly patient an ICD therapy can convey prognostic benefit despite comorbidity and competitive life-threatening diseases, as it is unclear how old age should be defined...
February 20, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/28219891/peripherally-generated-foxp3-regulatory-t-cells-mediate-the-immunomodulatory-effects-of-ivig-in-allergic-airways-disease
#3
Amir H Massoud, Gabriel N Kaufman, Di Xue, Marianne Béland, Marieme Dembele, Ciriaco A Piccirillo, Walid Mourad, Bruce D Mazer
IVIg is widely used as an immunomodulatory therapy. We have recently demonstrated that IVIg protects against airway hyperresponsiveness (AHR) and inflammation in mouse models of allergic airways disease (AAD), associated with induction of Foxp3(+) regulatory T cells (Treg). Using mice carrying a DTR/EGFP transgene under the control of the Foxp3 promoter (DEREG mice), we demonstrate in this study that IVIg generates a de novo population of peripheral Treg (pTreg) in the absence of endogenous Treg. IVIg-generated pTreg were sufficient for inhibition of OVA-induced AHR in an Ag-driven murine model of AAD...
February 20, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28219887/disruption-of-pathogenic-cellular-networks-by-il-21-blockade-leads-to-disease-amelioration-in-murine-lupus
#4
Jin-Young Choi, Abhinav Seth, Michael Kashgarian, Sonia Terrillon, Emma Fung, Lili Huang, Li Chun Wang, Joe Craft
Systemic lupus erythematosus (lupus) is characterized by autoantibody-mediated organ injury. Follicular Th (Tfh) cells orchestrate physiological germinal center (GC) B cell responses, whereas in lupus they promote aberrant GC responses with autoreactive memory B cell development and plasma cell-derived autoantibody production. IL-21, a Tfh cell-derived cytokine, provides instructional cues for GC B cell maturation, with disruption of IL-21 signaling representing a potential therapeutic strategy for autoantibody-driven diseases such as systemic lupus erythematosus...
February 20, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28197389/adaptive-resistance-to-anti-pd1-therapy-by-tim-3-upregulation-is-mediated-by-the-pi3k-akt-pathway-in-head-and-neck-cancer
#5
Gulidanna Shayan, Raghvendra Srivastava, Jing Li, Nicole Schmitt, Lawrence P Kane, Robert L Ferris
Programmed Death 1 (PD-1) and T cell Ig and mucin domain-3 protein (Tim-3) are immune checkpoint receptors that are expressed on tumor-infiltrating lymphocytes (TIL) in tumor-bearing mice and humans. As anti-PD-1 single agent response rates are only <20% in head and neck squamous cell carcinoma (HNSCC) patients, it is important to understand how multiple inhibitory checkpoint receptors maintain suppressed cellular immunity. One such receptor, Tim-3, activates downstream proliferative pathways through Akt/S6, and is highly expressed in dysfunctional TIL...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28191706/g-protein-coupled-estrogen-receptor-and-estrogen-receptor-ligands-regulate-colonic-motility-and-visceral-pain
#6
M Zielińska, J Fichna, M Bashashati, S Habibi, A Sibaev, J-P Timmermans, M Storr
BACKGROUND: Diarrhea-predominant irritable bowel syndrome (IBS-D) is a functional gastrointestinal (GI) disorder, which occurs more frequently in women than men. The aim of our study was to determine the role of activation of classical estrogen receptors (ER) and novel membrane receptor, G protein-coupled estrogen receptor (GPER) in human and mouse tissue and to assess the possible cross talk between these receptors in the GI tract. METHODS: Immunohistochemistry was used to determine the expression of GPER in human and mouse intestines...
February 12, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28188806/role-of-ccl20-mediated-immune-cell-recruitment-in-nf-%C3%AE%C2%BAb-mediated-trail-resistance-of-pancreatic-cancer
#7
Claudia Geismann, Frauke Grohmann, Anita Dreher, Robert Häsler, Philip Rosenstiel, Karen Legler, Charlotte Hauser, Jan Hendrik Egberts, Bence Sipos, Stefan Schreiber, Andreas Linkermann, Zonera Hassan, Günter Schneider, Heiner Schäfer, Alexander Arlt
Pancreatic ductal adenocarcinoma (PDAC) represents one of the deadliest cancers. From a clinical view, the transcription factor NF-κB is of particular importance, since this pathway confers apoptosis resistance and limits drug efficacy. Whereas the role of the most abundant NF-κB subunit p65/RelA in therapeutic resistance is well documented, only little knowledge of the RelA downstream targets and their functional relevance in TRAIL mediated apoptosis in PDAC is available. In the present study TRAIL resistant and sensitive PDAC cell lines were analyzed for differentially expressed RelA target genes, to define RelA downstream targets mediating TRAIL resistance...
February 7, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28187790/retinoic-acid-and-tgf-%C3%AE-signalling-cooperate-to-overcome-mycn-induced-retinoid-resistance
#8
David J Duffy, Aleksandar Krstic, Melinda Halasz, Thomas Schwarzl, Anja Konietzny, Kristiina Iljin, Desmond G Higgins, Walter Kolch
BACKGROUND: Retinoid therapy is widely employed in clinical oncology to differentiate malignant cells into their more benign counterparts. However, certain high-risk cohorts, such as patients with MYCN-amplified neuroblastoma, are innately resistant to retinoid therapy. Therefore, we employed a precision medicine approach to globally profile the retinoid signalling response and to determine how an excess of cellular MYCN antagonises these signalling events to prevent differentiation and confer resistance...
February 10, 2017: Genome Medicine
https://www.readbyqxmd.com/read/28156644/barriers-to-patients-understanding-of-prognosis-in-advanced-cancer
#9
Jason Palopoli, Mark Maddox, Adonas Woodard, Kristine Marie Ward, Maneesh Rajiv Jain, Pamela A Crilley, Dave Topolsky, John King, Sigmund Benham Khan, Maelys Amat, Michael Styler
: 24 Background: An informed decision requires good communication between the patient and their oncologist in regards to diagnosis and prognosis, especially in patients with terminal cancer. This discussion entails education about their disease, treatment options, and potential outcomes. The purpose of this study was to assess advanced-stage cancer oncology patients' comprehension of their disease, treatment options and goals of therapy. METHODS: Subjects included patients with a diagnosis of metastatic cancer with an option for palliative or life extending chemotherapy in an out-patient office at Drexel University College of Medicine...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28156507/the-effect-of-connexin-36-deletion-on-chemotherapy-induced-peripheral-neuropathy-cipn
#10
Regina Hanstein, David C Spray
: 1 Background: CIPN is a debilitating side effect and dose limiting toxicity of many chemotherapeutic agents. CIPN induces pathological changes in dorsal root ganglia (DRG), leading to increased cross-talk among the glia that surround sensory neurons (Satellite Glial Cells, SGC's) and between sensory neurons and their adjacent SGCs via gap junctions. Since Connexin 36 (Cx36) is the main neuronal gap junction protein, we investigated CIPN in mice with deletion of Cx36. METHODS: To induce CIPN, mice were given two i...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28142322/microbes-and-cancer
#11
Amiran Dzutsev, Jonathan H Badger, Ernesto Perez-Chanona, Soumen Roy, Rosalba Salcedo, Carolyne K Smith, Giorgio Trinchieri
Commensal microorganisms (the microbiota) live on all the surface barriers of our body and are particularly abundant and diverse in the distal gut. The microbiota and its larger host represent a metaorganism in which the cross talk between microbes and host cells is necessary for health, survival, and regulation of physiological functions locally, at the barrier level, and systemically. The ancestral molecular and cellular mechanisms stemming from the earliest interactions between prokaryotes and eukaryotes have evolved to mediate microbe-dependent host physiology and tissue homeostasis, including innate and adaptive resistance to infections and tissue damage...
January 30, 2017: Annual Review of Immunology
https://www.readbyqxmd.com/read/28134791/a-tale-of-two-signals-ar-and-wnt-in-development-and-tumorigenesis-of-prostate-and-mammary-gland
#12
REVIEW
Hubert Pakula, Dongxi Xiang, Zhe Li
Prostate cancer (PCa) is one of the most common cancers and among the leading causes of cancer deaths for men in industrialized countries. It has long been recognized that the prostate is an androgen-dependent organ and PCa is an androgen-dependent disease. Androgen action is mediated by the androgen receptor (AR). Androgen deprivation therapy (ADT) is the standard treatment for metastatic PCa. However, almost all advanced PCa cases progress to castration-resistant prostate cancer (CRPC) after a period of ADT...
January 27, 2017: Cancers
https://www.readbyqxmd.com/read/28132568/young-men-s-access-to-community-based-mental-health-care-qualitative-analysis-of-barriers-and-facilitators
#13
Simon M Rice, Nic R Telford, Debra J Rickwood, Alexandra G Parker
BACKGROUND: Young men experiencing mental ill health report the lowest rates of professional help-seeking of any demographic group across the lifespan. This phase of life (i.e. adolescence and emerging adulthood) also corresponds to a period of disconnection from healthcare services for young men. AIMS: The present exploratory qualitative study aimed to identify barriers and facilitators to mental health care, as identified by a sample of young help-seeking men and staff involved in mental health service provision...
January 28, 2017: Journal of Mental Health
https://www.readbyqxmd.com/read/28126871/primary-care-chaplaincy-a-valid-talking-therapy
#14
Gordon Macdonald
No abstract text is available yet for this article.
February 2017: British Journal of General Practice: the Journal of the Royal College of General Practitioners
https://www.readbyqxmd.com/read/28120356/understanding-the-role-of-structural-integrity-and-differential-expression-of-integrin-profiling-to-identify-potential-therapeutic-targets-in-breast-cancer
#15
REVIEW
Vishal Das, Gazal Kalyan, Saugata Hazra, Mintu Pal
Breast cancer is found to be the most prevalent neoplasm in women worldwide. Despite the function of physically tethering cells to the matrix, transmembrane protein integrins are crucially involved in diverse cellular functions such as cell differentiation, proliferation, invasion, migration and metastasis. Dysregulation of integrins and their interactions with the cells and their microenvironment can trigger several signalling cues that determine the cell fate decision. In this review we spotlight all pre-existing integrin molecules, their structure, molecular interactions motifs, and function through several cross talks with kinase receptors...
January 24, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28119807/regulation-of-multidrug-resistance-by-micrornas-in-anti-cancer-therapy
#16
REVIEW
Xin An, Cesar Sarmiento, Tao Tan, Hua Zhu
Multidrug resistance (MDR) remains a major clinical obstacle to successful cancer treatment. Although diverse mechanisms of MDR have been well elucidated, such as dysregulation of drugs transporters, defects of apoptosis and autophagy machinery, alterations of drug metabolism and drug targets, disrupti on of redox homeostasis, the exact mechanisms of MDR in a specific cancer patient and the cross-talk among these different mechanisms and how they are regulated are poorly understood. MicroRNAs (miRNAs) are a new class of small noncoding RNAs that could control the global activity of the cell by post-transcriptionally regulating a large variety of target genes and proteins expression...
January 2017: Acta Pharmaceutica Sinica. B
https://www.readbyqxmd.com/read/28117014/bispecific-antibodies-bsabs-promising-immunotherapeutic-agents-for-cancer-therapy
#17
Deasmond Omane Acheampong, Christian Kweku Adokoh, Paulina Ampomah, Daniel S Agyirifor, Isaac Dadzie, Francis Armah-Arkah, Ernest Amponsah Asiamah
Antibodies have become the preferred therapeutic treatment option for cancers. Antibody therapy is associated with low toxic profile and specific in its activity, unlike chemotherapy and radiotherapy. Types of tumor are known to express multiple receptors that cross-talk to activate perpetual growth, proliferation and metastasis, and inhibit apoptosis in such tumors. Bispecific antibodies (BsAbs) are therefore the preferred agent for the treatment of such cancers due to its unique characteristics. This review discusses up to date therapeutic potentials of BsAbs...
January 19, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/28116136/looking-to-a-future-of-improved-diabetes-management-interview-with-professor-steve-bain
#18
Steve Bain
Steve Bain talks to Francesca Lake, Managing Editor: Steve is currently a Professor at Swansea University Medical School (Wales), Assistant Medical Director for Research & Development for ABM University Health Board and Clinical Lead for the Diabetes Research Unit, Wales. His clinical training included research into the genetics of Type 1 diabetes, with his current clinical interests surrounding exercise in Type 1 diabetes, new therapies and the provision of diabetes services. His background has led him to be Principal Investigator for several multicenter trials, and to be involved in various ethical committees concerning genetics...
December 2016: Future Science OA
https://www.readbyqxmd.com/read/28108274/the-crosstalk-between-wnt-%C3%AE-catenin-signaling-pathway-with-dna-damage-response-and-oxidative-stress-implications-in-cancer-therapy
#19
REVIEW
Ansar Karimaian, Maryam Majidinia, Hossein Bannazadeh Baghi, Bahman Yousefi
DNA repair is essential for maintaining genomic integrity in cells. The dependence of cancer cell survival on proper DNA repair provides an opportunity to treat defective tumors by DNA damaging agents. Not only Wnt signaling has important functions in controlling gene expression, as well as cell polarity, adhesion and behavior, it also highly interacts with DNA damage response (DDR) in different levels. Furthermore, oxidative stress, which is responsible for majority of DNA lesions, affects Wnt signaling in different ways...
March 2017: DNA Repair
https://www.readbyqxmd.com/read/28104913/exosome-derived-micrornas-in-cancer-metabolism-possible-implications-in-cancer-diagnostics-and-therapy
#20
REVIEW
Marco Tomasetti, Wan Lee, Lory Santarelli, Jiri Neuzil
Malignant progression is greatly affected by dynamic cross-talk between stromal and cancer cells. Exosomes are secreted nanovesicles that have key roles in cell-cell communication by transferring nucleic acids and proteins to target cells and tissues. Recently, MicroRNAs (miRs) and their delivery in exosomes have been implicated in physiological and pathological processes. Tumor-delivered miRs, interacting with stromal cells in the tumor microenvironment, modulate tumor progression, angiogenesis, metastasis and immune escape...
January 20, 2017: Experimental & Molecular Medicine
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