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https://www.readbyqxmd.com/read/28938597/3-decylcatechol-induces-autophagy-mediated-cell-death-through-the-ire1%C3%AE-jnk-p62-in-hepatocellular-carcinoma-cells
#1
Da-Hye Go, Yu Geon Lee, Da-Hye Lee, Jin-A Kim, In-Hwa Jo, Yeon Soo Han, Yong Hun Jo, Kwang-Youn Kim, Young-Kyo Seo, Jae-Hak Moon, Chang Hwa Jung, Tae-Il Jeon
The natural, phenolic lipid urushiol exhibits both antioxidant and anticancer activities; however, its biological activity on hepatocellular carcinoma (HCC) has not been previously investigated. Here, we demonstrate that an urushiol derivative, 3-decylcatechol (DC), induces human HCC Huh7 cell death by induction of autophagy. DC initiates the autophagic process by activation of the mammalian target of rapamycin signaling pathway via Unc-51-like autophagy activating kinase 1, leading to autophagosome formation...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28937293/enhancing-tumor-specific-immune-responses-by-transcutaneous-vaccination
#2
Hanadi Saliba, Béatrice Heurtault, Hasnaa Bouharoun-Tayoun, Vincent Flacher, Benoît Frisch, Sylvie Fournel, Soulaima Chamat
Introduction Our understanding of the involvement of the immune system in cancer control has increased over recent years. However, the development of cancer vaccines intended to reverse tumor-induced immune tolerance remains slow as most current vaccine candidates exhibit limited clinical efficacy. The skin is particularly rich with multiple subsets of dendritic cells (DCs) that are involved to varying degrees in the induction of robust immune responses. Transcutaneous administration of cancer vaccines may therefore harness the immune potential of these DCs, however, this approach is hampered by the impermeability of the stratum corneum...
September 22, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28935714/profiling-mhc-ii-immunopeptidome-of-blood-stage-malaria-reveals-that-cdc1-control-the-functionality-of-parasite-specific-cd4-t-cells
#3
Marion Draheim, Myriam F Wlodarczyk, Karine Crozat, Jean-Michel Saliou, Tchilabalo Dilezitoko Alayi, Stanislas Tomavo, Ali Hassan, Anna Salvioni, Claudia Demarta-Gatsi, John Sidney, Alessandro Sette, Marc Dalod, Antoine Berry, Olivier Silvie, Nicolas Blanchard
In malaria, CD4 Th1 and T follicular helper (TFH) cells are important for controlling parasite growth, but Th1 cells also contribute to immunopathology. Moreover, various regulatory CD4 T-cell subsets are critical to hamper pathology. Yet the antigen-presenting cells controlling Th functionality, as well as the antigens recognized by CD4 T cells, are largely unknown. Here, we characterize the MHC II immunopeptidome presented by DC during blood-stage malaria in mice. We establish the immunodominance hierarchy of 14 MHC II ligands derived from conserved parasite proteins...
September 21, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28935649/melanoma-sequentially-suppresses-different-dc-subsets-in-the-sentinel-lymph-node-affecting-disease-spread-and-recurrence
#4
Mari F C M van den Hout, Bas D Koster, Berbel J R Sluijter, Barbara G Molenkamp, Rieneke van de Ven, Alfons J M van den Eertwegh, Rik J Scheper, Paul A van Leeuwen, M Petrousjka van den Tol, Tanja D de Gruijl
Melanoma exerts immune suppressive effects to facilitate tumor progression and metastatic spread. We studied these effects on dendritic cell (DC) and T-cell subsets in 36 melanoma sentinel lymph nodes (SLN) from 28 stage I-III melanoma patients and determined their clinical significance. Four conventional DC subsets; plasmacytoid DCs; and CD4+, CD8+, and regulatory T cells (Tregs) were analyzed by flow cytometry. We correlated these data to clinical parameters and determined their effect on local and distant melanoma recurrence, with a median follow-up of 75 months...
September 21, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/28935569/constitutive-cd40-signaling-in-dendritic-cells-limits-atherosclerosis-by-provoking-inflammatory-bowel-disease-and-ensuing-cholesterol-malabsorption
#5
Pascal Kusters, Tom Seijkens, Christina Bürger, Bart Legein, Holger Winkels, Marion Gijbels, Christian Barthels, Remy Bennett, Linda Beckers, Dorothee Atzler, Erik Biessen, Thomas Brocker, Christian Weber, Norbert Gerdes, Esther Lutgens
The co-stimulatory molecule CD40 is a major driver of atherosclerosis. It is expressed on a wide variety of cell types including mature dendritic cells (DCs) and is required for optimal T cell activation and expansion. It remains undetermined if and how CD40 on DCs impacts the pathogenesis of atherosclerosis. Here we examined the effects of constitutively active CD40 in DCs on atherosclerosis, using low-density lipoprotein-deficient (Ldlr(-/-)) bone-marrow chimeras that express a transgene containing an engineered latent membrane protein 1 (LMP)/CD40 fusion protein conferring constitutive CD40 signaling under control of the DC-specific CD11c promoter (DC-LMP1/CD40)...
September 18, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28935551/anti-trypanosoma-anti-leishmania-and-cytotoxic-activities-of-natural-products-from-psidium-brownianum-mart-ex-dc-and-psidium-guajava-var-pomifera-analysed-by-lc-ms
#6
Celestina Elba Sobral de Souza, Ana Raquel Pereira da Silva, Maria Celeste Vega Gomez, Míriam Rolóm, Cathia Coronel, José Galberto Martins da Costa, Amanda K Sousa, Larissa A Rolim, Francisco Hugo Sobral de Souza, Henrique Douglas Melo Coutinho
Neglected diseases are those that are prevalent in developing countries, even with a rich biodiversity. These diseases still persist because of the lack of scientific studies, government negligence or failures of the public health system. This study aims to identify the composition of extracts and fractions from Psidium brownianum and Psidium guajava through LC-MS, to evaluate its in vitro anti-parasitic and cytotoxic activity against Trypanosoma cruzi, Leishmania brasiliensis and L. infantum epismastigote and promastigote forms, as well as mammalian cells...
September 18, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28935527/axis-free-correction-of-astigmatism-using-bifocal-soft-contact-lenses
#7
Alexander Leube, Imre Kovats, Siegfried Wahl, Wolfgang Sickenberger
PURPOSE: Pilot study to investigate the feasibility of an axis-free correction approach of regular astigmatism using soft, bifocal contact lenses (CL). METHODS: The investigation covers an optical simulation and a pilot study for the assessment of visual performance (over refraction OR, monocular visual acuity VA). The power of the two zones was adjusted according to the power of the astigmatic meridians, individually. Subjective performance was assessed in 30 participants with a mean horizontal cylindrical component of J0=- 0...
September 18, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/28934271/dc-based-smart-pv-powered-home-energy-management-system-based-on-voltage-matching-and-rf-module
#8
Ahmad H Sabry, W Z W Hasan, Mza Ab Kadir, M A M Radzi, S Shafie
The main tool for measuring system efficiency in homes and offices is the energy monitoring of the household appliances' consumption. With the help of GUI through a PC or smart phone, there are various applications that can be developed for energy saving. This work describes the design and prototype implementation of a wireless PV-powered home energy management system under a DC-distribution environment, which allows remote monitoring of appliances' energy consumptions and power rate quality. The system can be managed by a central computer, which obtains the energy data based on XBee RF modules that access the sensor measurements of system components...
2017: PloS One
https://www.readbyqxmd.com/read/28934122/invasion-of-dendritic-cells-macrophages-and-neutrophils-by-the-bordetella-adenylate-cyclase-toxin-a-subversive-move-to-fool-host-immunity
#9
REVIEW
Giorgio Fedele, Ilaria Schiavoni, Irena Adkins, Nela Klimova, Peter Sebo
Adenylate cyclase toxin (CyaA) is released in the course of B. pertussis infection in the host's respiratory tract in order to suppress its early innate and subsequent adaptive immune defense. CD11b-expressing dendritic cells (DC), macrophages and neutrophils are professional phagocytes and key players of the innate immune system that provide a first line of defense against invading pathogens. Recent findings revealed the capacity of B. pertussis CyaA to intoxicate DC with high concentrations of 3',5'-cyclic adenosine monophosphate (cAMP), which ultimately skews the host immune response towards the expansion of Th17 cells and regulatory T cells...
September 21, 2017: Toxins
https://www.readbyqxmd.com/read/28933967/aid-biology-a-pathological-and-clinical-perspective
#10
Meenal Choudhary, Anubhav Tamrakar, Amit Kumar Singh, Monika Jain, Ankit Jaiswal, Prashant Kodgire
Activation-induced cytidine deaminase (AID), primarily expressed in activated mature B lymphocytes in germinal centers, is the key factor in adaptive immune response against foreign antigens. AID is responsible for producing high-affinity and high-specificity antibodies against an infectious agent, through the physiological DNA alteration processes of antibody genes by somatic hypermutation (SHM) and class-switch recombination (CSR) and functions by deaminating deoxycytidines (dC) to deoxyuridines (dU), thereby introducing point mutations and double-stranded chromosomal breaks (DSBs)...
September 21, 2017: International Reviews of Immunology
https://www.readbyqxmd.com/read/28933774/developmental-care-neonatal-behavior-and-postnatal-maternal-depressive-symptomatology-predict-internalizing-problems-at-18-months-for-very-preterm-children
#11
R Montirosso, L Giusti, P De Carli, E Tronick, R Borgatti
OBJECTIVE: To provide a prospective developmental model for behavioral outcomes in preterm infants in relation to developmental care (DC) practices and postnatal maternal depression. STUDY DESIGN: A longitudinal, multicenter, follow-up study conducted in 25 Italian tertiary neonatal intensive care units (NICUs). Participants were 162 healthy very preterm infants and their mothers. The level of quality of DC was assessed for each hospital. Infant's neurobehavioral profile was evaluated twice: at discharge (T1) and at 18 months for behavioral problems (T3)...
September 21, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28933487/scalable-cross-point-resistive-switching-memory-and-mechanism-through-an-understanding-of-h2o2-glucose-sensing-using-an-irox-al2o3-w-structure
#12
Somsubhra Chakrabarti, Siddheswar Maikap, Subhranu Samanta, Surajit Jana, Anisha Roy, Jian-Tai Qiu
The resistive switching characteristics of a scalable IrOx/Al2O3/W cross-point structure and its mechanism for pH/H2O2 sensing along with glucose detection have been investigated for the first time. Porous IrOx and Ir(3+)/Ir(4+) oxidation states are observed via high-resolution transmission electron microscope, field-emission scanning electron spectroscopy, and X-ray photo-electron spectroscopy. The 20 nm-thick IrOx devices in sidewall contact show consecutive long dc cycles at a low current compliance (CC) of 10 μA, multi-level operation with CC varying from 10 μA to 100 μA, and long program/erase endurance of >10(9) cycles with 100 ns pulse width...
September 21, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28933349/fluorescence-properties-of-6-aryl-2%C3%A2-deoxy-furanouridine-and-pyrrolocytidine-and-their-derivatives
#13
Jong Jin Ro, Gui Han Go, Marcus Wilhelmsson, Byeang Hyean Kim
2´-Deoxyfuranouridine derivatives presenting various aryl groups have been synthesized through Cu(I)-catalyzed intramolecular cyclizations. Moreover, corresponding pyrrolo-dC derivatives have been synthesized and both families of compounds thoroughly characterized using UV/vis and fluorescence spectroscopy as well as time-dependent density functional theory calculations. The photophysical characterization, show that our newly synthesized derivatives of the important pyrrolo-dC family have high fluorescence quantum yields and brightness values...
September 21, 2017: Methods and Applications in Fluorescence
https://www.readbyqxmd.com/read/28932832/coexistence-of-long-range-antiferromagnetic-order-and-slow-relaxation-of-the-magnetization-in-the-first-lanthanide-complex-of-a-1-2-4-benzotriazinyl-radical
#14
Ian S Morgan, Akseli Mansikkamäki, Mathieu Rouzières, Rodolphe Clérac, Heikki M Tuononen
The first lanthanide complex of a 1,2,4-benzotriazinyl radical (1), Dy(1)(tbacac)3 (2, tbacac = 2,2,6,6-tetramethyl-3,5-heptane-dionato), was synthesised and found to have an antiferromagnetically ordered ground state with a metamagnetic phase diagram and a critical field of 0.91 T at 1.85 K. The application of a small dc field revealed the single-molecule magnet behaviour of 2, illustrating the coexistence of long-range antiferromagnetic order and slow relaxation of the magnetization.
September 21, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28932192/wound-healing-properties-of-selected-plants-used-in-ethnoveterinary-medicine
#15
Amos Marume, Gift Matope, Simbarashe Katsande, Star Khoza, Isaac Mutingwende, Takafira Mduluza, Tafadzwa Munodawafa-Taderera, Ashwell R Ndhlala
Plants have arrays of phytoconstituents that have wide ranging biological effects like antioxidant, anti-inflammatory and antimicrobial properties key in wound management. In vivo wound healing properties of ointments made of crude methanolic extracts (10% extract w/w in white soft paraffin) of three plant species, Cissus quadrangularis L. (whole aerial plant parts), Adenium multiflorum Klotzsch (whole aerial plant parts) and Erythrina abyssinica Lam. Ex DC. (leaves and bark) used in ethnoveterinary medicine were evaluated on BALB/c female mice based on wound area changes, regular observations, healing skin's percentage crude protein content and histological examinations...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28932132/central-sensitization-based-classification-for-temporomandibular-disorders-a-pathogenetic-hypothesis
#16
REVIEW
Annalisa Monaco, Ruggero Cattaneo, Maria Chiara Marci, Davide Pietropaoli, Eleonora Ortu
Dysregulation of Autonomic Nervous System (ANS) and central pain pathways in temporomandibular disorders (TMD) is a growing evidence. Authors include some forms of TMD among central sensitization syndromes (CSS), a group of pathologies characterized by central morphofunctional alterations. Central Sensitization Inventory (CSI) is useful for clinical diagnosis. Clinical examination and CSI cannot identify the central site(s) affected in these diseases. Ultralow frequency transcutaneous electrical nerve stimulation (ULFTENS) is extensively used in TMD and in dental clinical practice, because of its effects on descending pain modulation pathways...
2017: Pain Research & Management: the Journal of the Canadian Pain Society
https://www.readbyqxmd.com/read/28931816/tgf%C3%AE-r-signalling-controls-cd103-cd11b-dendritic-cell-development-in-the-intestine
#17
C C Bain, J Montgomery, C L Scott, J M Kel, M J H Girard-Madoux, L Martens, T F P Zangerle-Murray, J Ober-Blöbaum, D Lindenbergh-Kortleve, J N Samsom, S Henri, T Lawrence, Y Saeys, B Malissen, M Dalod, B E Clausen, A McI Mowat
CD103(+)CD11b(+) dendritic cells (DCs) are unique to the intestine, but the factors governing their differentiation are unclear. Here we show that transforming growth factor receptor 1 (TGFβR1) has an indispensable, cell intrinsic role in the development of these cells. Deletion of Tgfbr1 results in markedly fewer intestinal CD103(+)CD11b(+) DCs and a reciprocal increase in the CD103(-)CD11b(+) dendritic cell subset. Transcriptional profiling identifies markers that define the CD103(+)CD11b(+) DC lineage, including CD101, TREM1 and Siglec-F, and shows that the absence of CD103(+)CD11b(+) DCs in CD11c-Cre...
September 20, 2017: Nature Communications
https://www.readbyqxmd.com/read/28931765/a-type-of-human-skin-dendritic-cell-marked-by-cd5-is-associated-with-the-development-of-inflammatory-skin-disease
#18
Daniel Korenfeld, Laurent Gorvel, Adiel Munk, Joshua Man, Andras Schaffer, Thomas Tung, Caroline Mann, Eynav Klechevsky
Dendritic cells (DCs) are important in regulating immunity and tolerance and consist of functionally distinct subsets that differentially regulate T lymphocyte function. The underlying basis for this subset specificity is lacking, particularly in humans, where the classification of tissue DCs is currently incomplete. Examination of healthy human epidermal Langerhans cells and dermal skin cells revealed a tissue CD5-expressing DC subtype. The CD5+ DCs were potent inducers of cytotoxic T cells and Th22 cells...
September 21, 2017: JCI Insight
https://www.readbyqxmd.com/read/28931406/validation-of-a-questionnaire-to-monitor-symptoms-in-hiv-infected-patients-during-hepatitis-c-treatment
#19
Edward R Cachay, Craig Ballard, Bradford Colwell, Francesca Torriani, Charles Hicks, Wm Christopher Mathews
BACKGROUND: Clinicians are incorporating patient-reported outcomes in the management of HIV-infected persons co-infected with hepatitis C virus (HCV), but there are no validated inventories to monitor symptoms of patients during HCV therapy. DESIGN: Five-year retrospective cohort analysis of persons living with HIV (PLWH) treated for HCV. METHODS: The HCV symptom-inventory (HCV-SI) was administered before, during, and after HCV treatment. Discriminant validity was assessed, separately, in mixed model linear regression of HCV-SI T-scores on treatment regimens (pegylated-interferon and ribavirin; pegylated-interferon, ribavirin, and telaprevir; and interferon-free antivirals); and side effect-related premature treatment discontinuation (SE-DC)...
September 20, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28930927/oral-behaviors-and-parafunctions-comparison-of-temporomandibular-dysfunction-patients-and-controls
#20
Marijus Leketas, Viktoras Šaferis, Ričardas Kubilius, Gabriele Cervino, Ennio Bramanti, Marco Cicciù
The aim of this study is to evaluate the frequency of oral behaviors in patients with temporomandibular disorders (TMD) and a control group without TMD.In this baseline case-control study, 260 controls and 260 subjects with TMD completed the oral behaviors checklist defined as a "self-report scale for identifying and quantifying the frequency of jaw overuse behavior" and underwent clinical examinations using the DC/TMJ international examination form (version May 12, 2013). Relationships of oral parafunctions' frequencies between groups were examined...
September 19, 2017: Journal of Craniofacial Surgery
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