1,026,848 results match your criteria Receptors and Channels[Journal]


Muscle Ciliary Neurotrophic Factor Receptor α Contributes to Motor Neuron STAT3 Activation Following Peripheral Nerve Lesion.

Eur J Neurosci 2018 Dec 16. Epub 2018 Dec 16.

Department of Pharmacology and Systems Physiology, University of Cincinnati, Cincinnati, Ohio, USA.

Expression of the ciliary neurotrophic factor (CNTF) receptor essential ligand binding subunit, CNTF receptor α (CNTFRα), is induced in motor neurons and skeletal muscle following peripheral nerve lesion. We previously found muscle CNTFRα promotes motor neuron axon regeneration post-lesion. Both nerve lesion and CNTF administration activate motor neuron signal transducer and activator of transcription 3 (STAT3), a transcription factor implicated in axon growth, suggesting CNTF receptors may contribute to the lesion-induced STAT3 activation. Read More

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December 2018

The Overlooked Aspect of Excitotoxicity: Glutamate-Independent Excitotoxicity in Traumatic Brain Injuries.

Eur J Neurosci 2018 Dec 16. Epub 2018 Dec 16.

Department of Anatomy, Physiology, and Pharmacology, College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, Saskatchewan, S7N 5E5, Canada.

Traumatic brain injury (TBI) is a leading major cause of morbidity and mortality in youth and individuals under 45 year age. A wide variety of cellular and molecular mechanisms have been identified contributing to the pathogenesis of TBI. A better understanding of the pathophysiology behind TBI is essential for providing more effective treatment. Read More

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December 2018

Microglia Receptors in Animal Models of Traumatic Brain Injury.

Mol Neurobiol 2018 Dec 16. Epub 2018 Dec 16.

Department of Bioengineering, New Jersey Institute of Technology, 111 Lock Street, Room105 CHEN bldg, Newark, NJ, 07102, USA.

Microglia have been implicated as a key mediator of chronic inflammation following traumatic brain injury (TBI). The animal models of TBI vary significantly based on the type of brain injury (focal versus diffuse). This has made it extremely difficult to assess the role of microglia and the window of microglia activation. Read More

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December 2018

Immune aspects of the bi-directional neuroimmune facilitator TRPV1.

Mol Biol Rep 2018 Dec 15. Epub 2018 Dec 15.

School of Arts and Sciences, St. Bonaventure University, St. Bonaventure, New York, 14778, USA.

A rapidly growing area of interest in biomedical science involves the reciprocal crosstalk between the sensory nervous and immune systems. Both of these systems are highly integrated, detecting potential environmental harms and restoring homeostasis. Many different cytokines, receptors, neuropeptides, and other proteins are involved in this bidirectional communication that are common to both systems. Read More

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December 2018

Interaction of H. pylori with toll-like receptor 2-196 to -174 ins/del polymorphism is associated with gastric cancer susceptibility in southern China.

Int J Clin Oncol 2018 Dec 15. Epub 2018 Dec 15.

Department of Gastroenterology, Changzhou No. 2 People's Hospital, Xinglong Xiang 29, Changzhou, 213000, Jiangsu, China.

Background: Genetic polymorphisms of Toll-like receptors play important roles in gastric carcinogenesis. The aim of this study was to determine the role of TLR2-196 to -174 ins/del polymorphism in gastric cancer susceptibility and prognosis.

Methods: This study included 520 people from southern China. Read More

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December 2018

Cabazitaxel and silibinin co-encapsulated cationic liposomes for CD44 targeted delivery: A new insight into nanomedicine based combinational chemotherapy for prostate cancer.

Biomed Pharmacother 2018 Dec 13;110:803-817. Epub 2018 Dec 13.

Department of Pharmaceutics, National Institute of Pharmaceutical Education & Research (NIPER), Hyderabad 500037, India. Electronic address:

Cancer stem cells (CSCs) are the promising targets for cancer chemotherapy that cannot be eliminated by conventional chemotherapy. In this study cationic liposomes of cabazitaxel (CBX) and silibinin (SIL) were prepared with an aim to kill cancer cells and CSCs for prostate cancer. CBX act as cancer cell inhibitor and SIL as CSC inhibitor. Read More

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December 2018

Therapeutic targeting of angiogenesis molecular pathways in angiogenesis-dependent diseases.

Biomed Pharmacother 2018 Dec 13;110:775-785. Epub 2018 Dec 13.

Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran; Molecular Medicine Research Centre, Tabriz University of Medical Sciences, Tabriz, Iran. Electronic address:

Angiogenesis is a critical step in the progression of almost all human malignancies and some other life-threatening diseases. Anti-angiogenic therapy is a novel and effective approach for treatment of angiogenesis-dependent diseases such as cancer, diabetic retinopathy, and age-related macular degeneration. In this article, we will review the main strategies developed for anti-angiogenic therapies beside their clinical applications, the major challenges, and the latest advances in the development of anti-angiogenesis-based targeted therapies. Read More

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December 2018

Evaluation of the protective effect of Myrtus communis in scopolamine-induced Alzheimer model through cholinergic receptors.

Gene 2018 Dec 13. Epub 2018 Dec 13.

Department of Pharmacology, Faculty of Pharmacy, Marmara University, Istanbul, Turkey.

Alzheimer's disease is a progressive neurodegenerative disorder causing common health problem with increasing age. Evidences show that the key symptoms of AD are mainly caused by cholinergic system dysfunction which has a role in cognitive disorders. Cholinergic pathways especially muscarinic receptors like M subtype also have a major role in learning, memory, cognitive functions and emotional state. Read More

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December 2018

Exposure to tobacco smoke during the early postnatal period modifies receptors and enzymes of the endocannabinoid system in the brainstem and striatum in mice.

Toxicol Lett 2018 Dec 13. Epub 2018 Dec 13.

Department of Clinical and Toxicological Analysis, School of Pharmaceutical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 580, bloco 13B, 05508-000, São Paulo, SP, Brazil. Electronic address:

Environmental tobacco smoke (ETS) exposure during brain development has been associated with several disorders, such as depression, anxiety, sudden infant death syndrome, and the predisposition to addiction. The endocannabinoid system plays an essential role in neuronal development. We investigated the effects of early postnatal ETS exposure on the endocannabinoid system in different brain regions. Read More

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December 2018

Increased cerebral blood flow after single dose of antipsychotics in healthy volunteers depends on dopamine D2 receptor density profiles.

Neuroimage 2018 Dec 13. Epub 2018 Dec 13.

Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King's College London, SE5 8AF, London, United Kingdom.

As a result of neuro-vascular coupling, the functional effects of antipsychotics in human brain have been investigated in both healthy and clinical populations using haemodynamic markers such as regional Cerebral Blood Flow (rCBF). However, the relationship between observed haemodynamic effects and the pharmacological action of these drugs has not been fully established. Here, we analysed Arterial Spin Labelling (ASL) rCBF data from a placebo-controlled study in healthy volunteers, who received a single dose of three different D2 receptor (DR) antagonists and tested the association of the main effects of the drugs on rCBF against normative population maps of DR protein density and gene-expression data. Read More

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December 2018

NMDA receptors of blood lymphocytes anticipate cognitive performance variations in healthy volunteers.

Physiol Behav 2018 Dec 13. Epub 2018 Dec 13.

Iranian National Center for Addiction Studies (INCAS), Tehran University of Medical Sciences, Tehran, Iran; Department of Neuroscience, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran; Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Institute for Cognitive Science Studies (ICSS), Tehran, Iran; Endocrinology and Metabolism Research Institute, Tehran University of Medical Science, Tehran, Iran. Electronic address:

Working memory (WM) system, temporarily stores information and uses this information for complex cognitive tasks. WM connects memory, emotional feelings and perception. Evidence compelling that N-methyl d-aspartate receptor (NMDAR) expression relatively affect WM performance in animal models. Read More

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December 2018

Prolonged ad libitum access to low-concentration sucrose changes the neurochemistry of the nucleus accumbens in male Sprague-Dawley rats.

Physiol Behav 2018 Dec 13. Epub 2018 Dec 13.

School of Medical Sciences, Discipline of Anatomy & Histology, University of Sydney, NSW, Australia, 2006.

Overconsumption of sugars contributes to poor health outcomes. Sugars are often added to commercial foods and beverages in low concentrations and these hidden sugars are consumed unnoticed, continuously. These hidden sugars are suggested to increase the motivation for foodstuffs with higher sugar contents, due to their rewarding properties. Read More

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December 2018

Comparative estrogenicity of endogenous, environmental and dietary estrogens in pregnant women II: Total estrogenicity calculations accounting for competitive protein and receptor binding and potency.

Food Chem Toxicol 2018 Dec 13. Epub 2018 Dec 13.

Health Effects and Exposure Science, Pacific Northwest National Laboratory, Richland, WA, 99352, USA; Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR, 93771, USA. Electronic address:

Evaluating the biological significance of human-relevant exposures to environmental estrogens involves assessing the individual and total estrogenicity of endogenous and exogenous estrogens found in serum, for example from biomonitoring studies. We developed a method for this assessment by integrating approaches for (i) measuring total hormone concentrations by mass spectrometry (Fleck et al., 2017), (ii) calculating hormone bioavailable concentrations in serum and, (iii) solving multiple equilibria between estrogenic ligands and receptors, and (iv) quantitatively describing key elements of estrogen potency. Read More

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December 2018

Pharmacologically evoked apnoeas. Receptors and nervous pathways involved.

Life Sci 2018 Dec 13. Epub 2018 Dec 13.

Department of Respiration Physiology, Mossakowski Medical Research Centre Polish Academy of Sciences, A. Pawińskiego 5, 02-106 Warsaw, Poland. Electronic address:

This review analyses the knowledge about the incidence of transient apnoeic spells, induced by substances which activate vagal chemically sensitive afferents. It considers the specificity and expression of appropriate receptors, and relevant research on pontomedullary circuits contributing to a cessation of respiration. Insight is gained into an excitatory drive of 5-HT serotonin receptors in overcoming opioid-induced respiratory inhibition. Read More

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December 2018

Menthol-induced facilitation of cerebrocortical excitatory propagation induced by air puff stimulation of the nasal cavity in the rat: An optical imaging study.

Neurosci Lett 2018 Dec 13. Epub 2018 Dec 13.

Department of Pharmacology, Nihon University School of Dentistry, 1-8-13 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-8310, Japan; Division of Oral and Craniomaxillofacial Research, Dental Research Center, Nihon University School of Dentistry, 1-8-13 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-8310, Japan; Molecular Dynamics Imaging Unit, RIKEN Center for Life Science Technologies, 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan.

Temperature plays a critical role in the sensation of airflow in the nasal mucosa. Neural activities of the ethmoidal nerve, a trigeminal afferent, responding to airflow are suppressed by warm airflow, whereas cold airflow enhances the ethmoidal nerve activities, which is mimicked by application of menthol, a cold-sensitive TRPM8 receptor agonist. However, it has been an open issue how menthol modulates the spatiotemporal profiles of neural activities of somatosensory cortical neurons. Read More

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December 2018

Platelet-Derived Growth Factor-D Enables Liver Myofibroblasts to Promote Tumor Lymphangiogenesis in Cholangiocarcinoma.

J Hepatol 2018 Dec 13. Epub 2018 Dec 13.

Department of Molecular Medicine, University of Padua, Padova, Italy; International Center for Digestive Health (ICDH), University of Milan-Bicocca, Milan, Italy; Section of Digestive Diseases, Department of Internal Medicine, Yale University, New Haven, CT, USA. Electronic address:

Background: /Aims. In cholangiocarcinoma, early metastatic spread via lymphatic vessels often precludes curative therapies. Cholangiocarcinoma invasiveness is fostered by an extensive stromal reaction, enriched in cancer-associated fibroblasts (CAF) and lymphatic endothelial cells (LEC). Read More

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December 2018

Uridine adenosine tetraphosphate and purinergic signaling in cardiovascular system: an update.

Pharmacol Res 2018 Dec 13. Epub 2018 Dec 13.

Division of Experimental Cardiology, Department of Cardiology, Thoraxcenter, Erasmus University Medical Center, Rotterdam, the Netherlands.

Uridine adenosine tetraphosphate (UpA), biosynthesized by activation of vascular endothelial growth factor receptor (VEGFR) 2, was initially identified as a potent endothelium-derived vasoconstrictor in perfused rat kidney. Subsequently, the effect of UpA on vascular tone regulation was intensively investigated in arteries isolated from different vascular beds in rodents including rat pulmonary arteries, aortas, mesenteric and renal arteries as well as mouse aortas, in which UpA produces vascular contraction. In contrast, UpA produces vascular relaxation in porcine coronary small arteries and rat aortas. Read More

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December 2018

Ligand binding domain interface: A tipping point for pharmacological agents binding with GluN1/2A subunit containing NMDA receptors.

Eur J Pharmacol 2018 Dec 13. Epub 2018 Dec 13.

Edward Via Virginia College of Osteopathic Medicine, Technical University, Darmstadt, Germany; Virginia-Maryland College of Veterinary MedicineVirginia Tech, Blacksburg, VA, USA; School of Neuroscience, Virginia Tech, Blacksburg, VA, USA. Electronic address:

N-methyl D-aspartate (NMDA) receptors play a crucial role in normal brain function, pathogenesis of neurodegenerative and psychiatric disorders. Functional tetra-heteromeric NMDA receptor contains two obligatory GluN1 subunits and two identical or different non-GluN1 subunits that evolve from six different genes including four GluN2 (A-D) and two GluN3 (A-B) subunits. Since NMDA receptors confer varied physiological properties and spatiotemporal distributions in the brain, pharmacological agents that target NMDA receptors with specific GluN2 subunits have significant potential for therapeutic applications. Read More

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December 2018

Δ-Tetrahydrocannabinol upregulates fatty acid 2-hydroxylase (FA2H) via PPARα induction: A possible evidence for the cancellation of PPARβ/δ-mediated inhibition of PPARα in MDA-MB-231 cells.

Arch Biochem Biophys 2018 Dec 13. Epub 2018 Dec 13.

Department of Molecular Biology, Daiichi University of Pharmacy, 22-1 Tamagawa-cho, Minami-ku, Fukuoka, 815-8511, Japan.

Peroxisome proliferator-activated receptors (PPARs) are a family of ligand-activated nuclear transcription factors, with three characterized subtypes: PPARα, PPARβ/δ, and PPARγ. The biological correlation between the two PPAR subtypes PPARα and γ and carcinogenesis is well-characterized; however, substantially less is known about the biological functions of PPARβ/δ. PPARβ/δ has been reported to repress transcription when PPARβ/δ and PPARα or PPARγ are simultaneously expressed in some cells, and MDA-MB-231 cells express functional levels of PPARβ/δ. Read More

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December 2018

NR4A nuclear receptors in cardiac remodeling and neurohormonal regulation.

Trends Cardiovasc Med 2018 Dec 4. Epub 2018 Dec 4.

Department of Medical Biochemistry, Amsterdam UMC, University of Amsterdam, Academic Medical Center, Amsterdam Cardiovascular Sciences, Meibergdreef 9, room K1-115, 1105 AZ Amsterdam, The Netherlands. Electronic address:

Heart failure is characterized by the constant interplay between the underlying cardiac insult, degree of myocardial dysfunction and the activity of compensatory neurohormonal mechanisms. The sympathetic nervous system (SNS) and renin-angiotensin-aldosterone system (RAAS) become activated to maintain cardiac output; however, their chronic hyperactivity will eventually become deleterious. Several nuclear hormone receptors, including the mineralocorticoid receptor and estrogen receptor, are well-known to modulate cardiac disease. Read More

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December 2018

[A misleading breast metastasis of medullary thyroid carcinoma].

Ann Pathol 2018 Dec 12. Epub 2018 Dec 12.

Université Paris Diderot, Sorbonne-Paris-Cité, 10, avenue de Verdun, 75010 Paris, France; Service d'anatomie et cytologie pathologiques, CHU Saint-Louis, AP-HP, Paris, France.

Recognition of mammary metastases by pathologists is fundamental because their prognosis and treatment are different from those of primary mammary carcinomas. We report the case of a 54-year-old woman presenting on her mammography a left breast nodule known for 5 years, having discreetly increased in size. Breast ultrasound showed a regular 1. Read More

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December 2018
2 Reads

Genomics, GPCRs and new targets for the control of insect pests and vectors.

Curr Opin Insect Sci 2018 Dec 30;30:99-106. Epub 2018 Aug 30.

Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, IN 47907-2089, USA.

The pressing need for new pest control products with novel modes of action has spawned interest in small molecules and peptides targeting arthropod GPCRs. Genome sequence data and tools for reverse genetics have enabled the prediction and characterization of GPCRs from many invertebrates. We review recent work to identify, characterize and de-orphanize arthropod GPCRs, with a focus on studies that reveal exciting new functional roles for these receptors, including the regulation of metabolic resistance. Read More

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December 2018

Neonicotinoids: molecular mechanisms of action, insights into resistance and impact on pollinators.

Curr Opin Insect Sci 2018 Dec 27;30:86-92. Epub 2018 Sep 27.

Department of Applied Biological Chemistry, Faculty of Agriculture, Kindai University, 3327-204 Nakamachi, Nara 631-8505, Japan; Agricultural Technology and Innovation Research Institute, Kindai University, 3327-204 Nakamachi, Nara 631-8505, Japan. Electronic address:

Neonicotinoids are insecticides that target insect nicotinic acetylcholine receptors (nAChRs), exhibiting high selective toxicity to insects over vertebrates and good systemic activity in crop plants. For these reasons, neonicotinoids currently make up ∼30% of insecticide sales worldwide. However, due to their adverse impact on pollinators such as honey bees and bumble bees, neonicotinoids are being banned from the EU, and other countries may follow. Read More

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December 2018

Functionalized rifampicin-loaded nanostructured lipid carriers enhance macrophages uptake and antimycobacterial activity.

Colloids Surf B Biointerfaces 2018 Dec 4;175:306-313. Epub 2018 Dec 4.

Laboratório de Fitotecnologia, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil. Electronic address:

Tuberculosis is an infectious bacterial disease that causes millions of deaths worldwide. Current treatment recommended by WHO is effective, however it is an extensive and arduous process associated to severe adverse effects, which induces a low patient compliance and the emerging of multidrug resistant tuberculosis. Thus, as a main goal of this study, rifampicin nanoparticles were surface functionalized with a tuftsin-modifed peptide to selectively recognize receptors located on infected alveolar macrophages, enhancing nanoparticles uptake by these cells and improving antimycobacterial activity. Read More

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December 2018
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Clinicopathological characteristics of metaplastic breast cancer - analysis of the basic immunohistochemical profile and comparison with other invasive breast cancer types.

Breast 2018 Dec 7;43:135-141. Epub 2018 Dec 7.

Department of Biophysics and Human Physiology, Medical University of Warsaw, Chalubinskiego 5, 02-004 Warsaw, Poland.

Introduction: Metaplastic breast cancer (MpBC) is a rare but aggressive type of breast cancer accounting for 0.25-1% of all diagnosed invasive breast cancers. Morphologically, it is characterized by differentiation of the neoplastic epithelium into squamous cells and/or mesenchymal-looking tissue. Read More

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December 2018

Biology of preeclampsia: Combined actions of angiogenic factors, their receptors and placental proteins.

Biochim Biophys Acta Mol Basis Dis 2018 Dec 12. Epub 2018 Dec 12.

Division of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria. Electronic address:

Although massive efforts have been undertaken to elucidate the etiology of the pregnancy syndrome preeclampsia, its developmental origin remains a mystery. Most efforts of the last decade have focused on biomarkers to predict and/or diagnose preeclampsia, including the anti-angiogenic factor sFlt-1 (soluble fms-like tyrosin kinase-1), the angiogenic factor PGF (placental growth factor) and PP13 (placental protein 13). The origins of these marker proteins are still under debate, and so far their actions have only been describe separate from each other. Read More

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December 2018

Altered α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptor function and expression in hippocampus in a rat model of attention-deficit/hyperactivity disorder (ADHD).

Behav Brain Res 2018 Dec 12. Epub 2018 Dec 12.

The Brain and Muscle Energy Group, Electron Microscopy Laboratory, Department of Oral Biology, University of Oslo, NO-0316, Oslo, Norway; Synaptic Neurochemistry and Amino Acid Transporters Labs, Division of Anatomy, Department of Molecular Medicine, Institute of Basic Medical Sciences (IMB) and Healthy Brain Ageing Centre (SERTA), University of Oslo, NO-0317, Oslo, Norway; Center for Healthy Aging, Department of Neuroscience and Pharmacology, Faculty of Health Sciences, University of Copenhagen, DK-2200 Copenhagen N, Denmark.

Glutamatergic α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors (AMPARs) carry the bulk of excitatory synaptic transmission. Their modulation plays key roles in synaptic plasticity, which underlies hippocampal learning and memory. A dysfunctional glutamatergic system may negatively affect learning abilities and underlie symptoms of attention-deficit/hyperactivity disorder (ADHD). Read More

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December 2018
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Analgesic and anti-edemic properties of etifoxine in models of inflammatory sensitization.

Eur J Pharmacol 2018 Dec 12. Epub 2018 Dec 12.

Centre National de la Recherche Scientifique and University of Strasbourg, Institut des Neurosciences Cellulaires et Intégratives, 67000 Strasbourg, France. Electronic address:

Inflammatory processes are critical promoting factors of chronic pain states, mostly by inducing peripheral and central sensitization of the nociceptive system. These processes are associated with a massive increase in glutamatergic transmission, sometimes facilitated by spinal disinhibition. In this study, we used etifoxine, a non-benzodiazepine anxiolytic known to amplify inhibition mediated by gamma-aminobutyric acid type A (GABA) receptors in pain processing regions, either directly (through allosteric modulation) or indirectly (through the synthesis of endogenous neurosteroids). Read More

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December 2018
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Receptor- and store-operated mechanisms of calcium entry during the nanosecond electric pulse-induced cellular response.

Biochim Biophys Acta Biomembr 2018 Dec 12. Epub 2018 Dec 12.

Air Force Research Laboratory, 711th Human Performance Wing, Airman Systems Directorate, Bioeffects Division, Radio Frequency Bioeffects Branch, 4141 Petroleum Road, JBSA Fort Sam Houston, TX 78234, USA.

Nanosecond electric pulses have been shown to open nanopores in the cell plasma membrane by fluorescent imaging of calcium uptake and fluorescent dyes, including propidium (Pr) iodide and YO-PRO-1 (YP). Recently, we demonstrated that nsEPs also induce the phosphoinositide intracellular signaling cascade by phosphatidylinositol‑4,5‑bisphosphate (PIP) depletion resulting in physiological responses similar to those observed following stimulation of G-coupled receptors. In this paper, we explore the role of receptor- and store-operated calcium entry (ROCE/SOCE) mechanisms in the observed response of cells to nsEP. Read More

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December 2018

Pubertal development of estradiol-induced hypothalamic progesterone synthesis.

Horm Behav 2018 Dec 12. Epub 2018 Dec 12.

UCLA DGSOM Dept of Neurobiology, 650 Charles E Young Dr. S, Los Angeles, CA 90095, Laboratory of Neuroendocrinology of the Brain Research Institute, United States of America.

In females, a hallmark of puberty is the luteinizing hormone (LH) surge that triggers ovulation. Puberty initiates estrogen positive feedback onto hypothalamic circuits, which underlie the stimulation of gonadotropin releasing hormone (GnRH) neurons. In reproductively mature female rodents, both estradiol (E2) and progesterone (P4) signaling are necessary to stimulate the surge release of GnRH and LH. Read More

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December 2018
4.632 Impact Factor

An important role of -fucose biosynthesis and protein fucosylation genes in Arabidopsis immunity.

New Phytol 2018 Dec 15. Epub 2018 Dec 15.

Department of Energy Plant Research Laboratory, East Lansing, MI, 48824, USA.

Plants mount coordinated immune responses to defend against pathogens. However, the cellular components required for plant immunity are not fully understood. The jasmonate-mimicking coronatine (COR) toxin produced by Pseudomonas syringae pv. Read More

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December 2018

DNA aptamers in detection of leukemia cells by thickness shear mode acoustics method.

Chemphyschem 2018 Dec 15. Epub 2018 Dec 15.

SLOVAKIA.

Using thickness shear mode acoustics method (TSM) and single molecule force spectroscopy (SMFS) we studied the interactions between DNA aptamers (sgc8c) specific to the protein tyrosine kinase 7 (PTK7) localized in the membranes of leukemia lymphoblastics (MOLT-4) and lymphocyte (Jurkat) cell lines as well with PTK7-free U266 myeloid leukemia cells. TSM method allowed development of high sensitive label-free biosensor for detection leukemia cells with limit of detection 195±20 cells/mL. SMFS approved high selectivity of sgc8c aptamers to the PTK7 receptors at the cell surface and allowed determination of binding probability of the aptamers to the PTK7 receptors at different cell lines. Read More

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December 2018

Phytochrome F plays critical roles in potato photoperiodic tuberization.

Plant J 2018 Dec 15. Epub 2018 Dec 15.

Key Laboratory of Potato Biology and Biotechnology, Ministry of Agriculture and Countryside, Huazhong Agricultural University, Wuhan, Hubei, 430070, China.

The transition to tuberization contributes greatly to the adaptability of potato to a wide range of environments. Phytochromes are important light receptors for the growth and development of plants, but the detailed functions of Phytochromes remain unclear in potato. In this study, we first confirmed that phytochrome F (StPHYF) played essential roles in photoperiodic tuberization in potato. Read More

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December 2018

Interneuron NMDA receptors change the gear of motor learning in the cerebellar machine.

J Physiol 2018 Dec 15. Epub 2018 Dec 15.

Program in Neurosciences and Mental Health, SickKids Research Institute, Toronto, Ontario, M5G 1×8, Canada.

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December 2018

Molecular Imaging of mGluR5 Availability with [C]ABP68 in Glutaminase Heterozygous Mice.

Cell Mol Neurobiol 2018 Dec 14. Epub 2018 Dec 14.

Molecular Imaging Center Antwerp, University of Antwerp, Antwerp, Belgium.

Many PET tracers enable determination of fluctuations in neurotransmitter release, yet glutamate specifically can not be visualized in a noninvasive manner. Several studies point to the possibility of visualizing fluctuations in glutamate release by changes in affinity of the mGluR5 radioligand [C]ABP688. These studies use pharmacological challenges to alter glutamate levels, and so probe release, but have not measured chronic alterations in receptor occupancy due to altered neurotransmission relevant to chronic neuropsychiatric disorders or their treatment. Read More

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December 2018

FcRγ deficiency improves survival in experimental sepsis by down-regulating TLR4 signaling pathway.

Immunol Res 2018 Dec 14. Epub 2018 Dec 14.

Department of Oncology, General Hospital of Chinese PLA, 28 Fuxing Road, Beijing, 100853, China.

Fc receptor common γ signaling chain (FcRγ), a common subunit shared by Fc receptors (FcγRI, III, IV, FcαRI, and FcεRI), is an important immune regulator both in innate and adaptive immunity. Previous studies have shown that FcRγ was a potential target of inflammatory diseases, whereas the role of FcRγ in sepsis has been poorly understood. In this study, we found that deficiency of FcRγ resulted in increased survival in lipopolysaccharide (LPS)/D-galactosamine and E. Read More

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December 2018

Antiemetic use of olanzapine in patients with advanced cancer: results from an open-label multicenter study.

Support Care Cancer 2018 Dec 14. Epub 2018 Dec 14.

Department of Clinical Oncology, Zealand University Hospital, Roskilde, Denmark.

Introduction: The antipsychotic drug olanzapine is effective against chemotherapy-induced nausea and targets multiple receptors known to be involved in the emetic reflex arch. The drug has a mean half-life of 30 h, which allows for a single daily administration and is therefore of interest in patients with advanced cancer suffering from nausea.

Objectives: To investigate the antiemetic effect and tolerability of olanzapine in patients with advanced cancer not receiving chemotherapy or irradiation. Read More

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December 2018

Hypoactivity of rat detrusor muscle in a model of cystitis: exacerbation by non-selective COX inhibitors and amelioration by a selective DP receptor antagonist.

Naunyn Schmiedebergs Arch Pharmacol 2018 Dec 14. Epub 2018 Dec 14.

Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt.

Various studies have confirmed that prostaglandins (PG) alter the bladder motor activity and micturition reflex in both human and animals. However, no sufficient data is reported about the effect of cyclooxygenase (COX) inhibitors neither in normal bladder physiology nor in pathological conditions. This study aims to compare the potential effects of some COX inhibitors with varying COX-1/COX-2 selectivities (indomethacin, ketoprofen, and diclofenac) with that of the selective COX-2 inhibitor (DFU) on bladder function. Read More

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December 2018

Mitogen-activated protein kinases MPK3 and MPK6 are required for stem cell maintenance in the Arabidopsis shoot apical meristem.

Plant Cell Rep 2018 Dec 14. Epub 2018 Dec 14.

Department of Molecular Biology and Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, USA.

Key Message: CLV3p-mediated phosphorylation of MPK3 and MPK6 occurs via CLV1 and BAM1 receptors to regulate the maintenance of SAM development. The CLAVATA peptide-receptor (CLV3p-CLV1) pathway modulates a homeodomain master regulator WUSCHEL (WUS) transcription factor in the shoot apical meristem (SAM) with poorly defined signaling mechanisms. Here, we report that mitogen-activated protein kinases (MAPKs, also known as MPKs in plants) act in an intracellular signaling cascade to play an important role in the maintenance of SAM development. Read More

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December 2018

Plasmodium falciparum infected erythrocytes can bind to host receptors integrins αVβ3 and αVβ6 through DBLδ1_D4 domain of PFL2665c PfEMP1 protein.

Sci Rep 2018 Dec 14;8(1):17871. Epub 2018 Dec 14.

Charles E. Schmidt College of Medicine, Department of Biomedical Science, Florida Atlantic University, Boca Raton, FL, USA.

Major complications and mortality from Plasmodium falciparum malaria are associated with cytoadhesion of parasite-infected erythrocytes (IE). The main parasite ligands for cytoadhesion are members of the P. falciparum erythrocyte membrane protein 1 (PfEMP1) family. Read More

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December 2018
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Combined deficiency of SLAMF8 and SLAMF9 prevents endotoxin-induced liver inflammation by downregulating TLR4 expression on macrophages.

Cell Mol Immunol 2018 Dec 14. Epub 2018 Dec 14.

Institute for Immunology and School of Medicine, Beijing Key Lab for Immunological Research on Chronic Diseases, Tsinghua University, 100086, Beijing, China.

Classical signaling lymphocyte activating molecule (SLAM) family receptors are abundant within many types of immune cells, whereas the nonclassical SLAM family receptors SLAMF8 and SLAMF9, which uniquely lack cytoplasmic signaling motifs, are highly expressed by myeloid cells. Due to the potential redundancy, whether these two receptors regulate macrophage function remains largely unknown. Here, we show that SLAMF8 and SLAMF9 co-regulate macrophage-mediated liver inflammation. Read More

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December 2018

miR-608 and miR-4513 significantly contribute to the prognosis of lung adenocarcinoma treated with EGFR-TKIs.

Lab Invest 2018 Dec 14. Epub 2018 Dec 14.

Shandong Provincial Key Laboratory of Radiation Oncology, Cancer Research Center, Shandong Cancer Hospital affiliated to Shandong University, Shandong Academy of Medical Sciences, Jinan, Shandong Province, China.

Tyrosine kinase inhibitors (TKIs) targeting epidermal growth factor receptors (EGFR) significantly prolong the survival of lung adenocarcinoma patients with sensitizing EGFR mutations. Unfortunately, 10-30% patients do not show objective responses to EGFR-TKIs, and undergo rapid disease progression during the EGFR-TKIs therapy. Single nucleotide polymorphisms (SNPs) in mature microRNA (miRNA) sequences may influence target site interactions and modulate downstream pathways, such as the EGFR pathway. Read More

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December 2018

Avian Toll-like receptor allelic diversity far exceeds human polymorphism: an insight from domestic chicken breeds.

Sci Rep 2018 Dec 14;8(1):17878. Epub 2018 Dec 14.

Charles University, Faculty of Science, Department of Zoology, Viničná 7, Prague, 12843, Czech Republic.

Immune genes show remarkable levels of adaptive variation shaped by pathogen-mediated selection. Compared to humans, however, population polymorphism in animals has been understudied. To provide an insight into immunogenetic diversity in birds, we sequenced complete protein-coding regions of all Toll-like receptor (TLR) genes with direct orthology between mammals and birds (TLR3, TLR4, TLR5 and TLR7) in 110 domestic chickens from 25 breeds and compared their variability with a corresponding human dataset. Read More

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December 2018

Identification of the salusin-β receptor using proteoliposomes embedded with endogenous membrane proteins.

Sci Rep 2018 Dec 14;8(1):17865. Epub 2018 Dec 14.

Protosera Inc., 4-3-22 Nishinakajima, Yodogawa-ku, Osaka, 532-0011, Japan.

Although orphan G protein-coupled receptors (GPCRs) have been used as targets to discover unidentified natural ligands, increasing numbers of non-GPCRs have been found to mediate important biological functions. Bioinformatics of genome and cDNA resources predict putative bioactive peptides, demanding an alternative approach to efficiently unravel cell surface targets. In silico analysis of a full-length cDNA library previously allowed us to identify salusin-β, a parasympathomimetic/pro-atherosclerotic peptide with unique physicochemical properties. Read More

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December 2018

Intravenously Administered Ganaxolone Blocks Diazepam- Resistant Lithium-Pilocarpine-Induced Status Epilepticus in Rats. Comparison with Allopregnanolone.

J Pharmacol Exp Ther 2018 Dec 14. Epub 2018 Dec 14.

University of Washington School of Pharmacy.

Ganaxolone (GNX) is the 3β-methylated synthetic analog of the naturally occurring neurosteroid, allopregnanolone (ALLO). GNX is effective in a broad range of epilepsy and behavioral animal models and is currently in clinical trials designed to assess its anticonvulsant and antidepressant activities. The current studies were designed to broaden the anticonvulsant profile of GNX by evaluating its potential anticonvulsant activities following intravenous (IV) administration in treatment resistant models of status epilepticus (SE), to establish a pharmacokinetic (PK)/pharmacodynamics (PD) relationship, and to compare its PK and anticonvulsant activities to ALLO. Read More

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December 2018

Synthetic cannabinoid hydroxypentyl metabolites retain efficacy at human cannabinoid receptors.

J Pharmacol Exp Ther 2018 Dec 14. Epub 2018 Dec 14.

RTI International;

Synthetic cannabinoids (SCs) are novel psychoactive substances that are easily acquired, widely abused as a substitute for cannabis, and associated with cardiotoxicity and seizures. While the structures of these compounds are based upon scaffolds with known affinity and efficacy at the human cannabinoid type-1 receptor (hCB), upon ingestion or inhalation they can be metabolized to multiple chemical entities of unknown pharmacological activity. A large proportion of these metabolites are hydroxylated on the pentyl chain, a key substituent that determines receptor affinity and selectivity. Read More

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December 2018

In vivo Preclinical Molecular Imaging of repeated exposure to an NMDA antagonist and a glutaminase inhibitor as potential glutamatergic modulators.

J Pharmacol Exp Ther 2018 Dec 14. Epub 2018 Dec 14.

Molecular Imaging Center Antwerp;

Glutamate is the principal excitatory neurotransmitter in the brain and at the base of a wide variety of neuropathologies, including epilepsy, autism, Fragile X and obsessive compulsive disorder. Glutamate has so become the target for novel drugs in treatment and in fundamental research settings. However, much remains unknown on the working mechanisms of these drugs and the effects of chronic administration on the glutamatergic system. Read More

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December 2018

Unraveling the Cellular Mechanism of Assembling Cholesterols for Selective Cancer Cell Death.

Mol Cancer Res 2018 Dec 14. Epub 2018 Dec 14.

DEPT CHEM, Brandeis University

Acquired drug resistance remains a challenge in chemotherapy. Here we show enzymatic, in-situ assembling of cholesterol derivatives to act as polypharmaceuticals for selectively inducing death of cancer cells via multiple pathways and without inducing acquired drug resistance. A conjugate of tyrosine and cholesterol (TC), formed by enzyme catalyzed dephosphorylation of phosphorylate TC (pTC), self-assembles selectively on or in cancer cells. Read More

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December 2018

Zip6 Transporter Is an Essential Component of the Lymphocyte Activation Machinery.

J Immunol 2018 Dec 14. Epub 2018 Dec 14.

Laboratory of Molecular Physiology, Department of Experimental and Health Sciences, Pompeu Fabra University, 08003 Barcelona, Spain;

Zinc deficiency causes immune dysfunction. In T lymphocytes, hypozincemia promotes thymus atrophy, polarization imbalance, and altered cytokine production. Zinc supplementation is commonly used to boost immune function to prevent infectious diseases in at-risk populations. Read More

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December 2018
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