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https://www.readbyqxmd.com/read/28324890/regulation-of-itga3-by-the-dual-stranded-microrna-199-family-as-a-potential-prognostic-marker-in-bladder-cancer
#1
Takashi Sakaguchi, Hirofumi Yoshino, Masaya Yonemori, Kazutaka Miyamoto, Satoshi Sugita, Ryosuke Matsushita, Toshihiko Itesako, Shuichi Tatarano, Masayuki Nakagawa, Hideki Enokida
BACKGROUND: Based on the microRNA (miRNA) signature of bladder cancer (BC) by deep sequencing, we recently found that several double-stranded mature miRNAs derived from the same pre-miRNAs were sufficiently expressed and acted as tumour suppressors by regulating common target genes in BC. Our deep-sequencing signature of BC showed that all miR-199 family members (miR-199a-3p/-5p and miR-199b-3p/-5p) were also downregulated. We hypothesised that these miRNAs may function as tumour suppressors by regulating common target genes...
March 21, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28324844/serotonin-transporter-and-receptor-ligands-with-antidepressant-activity-as-neuroprotective-and-proapoptotic-agents
#2
REVIEW
Zdzislaw Chilmonczyk, Andrzej J Bojarski, Andrzej Pilc, Ingebrigt Sylte
Serotonin exhibits multiple non-neural functions involved in essential hypertension, early embryogenesis, follicle maturation and behaviour. The growth stimulatory effects of the neurotransmitter have been described for a variety of cell types. 5-HT was found to induce migration of the human prostate cancer cell lines - PC-3 and Du145 - and several 5-HT1A antagonists and serotonin reuptake inhibitors were reported to inhibit the growth of different tumour cell lines in vitro. Recent studies suggest that neurogenesis is involved in the action of antidepressants and an involvement of antidepressants in adult hippocampal neurogenesis has been demonstrated...
January 22, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28324830/chitinase-3-like-1-deficient-donor-splenocytes-accentuated-the-pathogenesis-of-acute-graft-versus-host-diseases-through-regulating-t-cell-expansion-and-type-i-inflammation
#3
Zengyao Li, Jian Gu, Jing Liu, Qin Zhu, Hao Lu, Yunjie Lu, Jianhua Rao, Ling Lu, Xuehao Wang
Acute graft-versus-host disease (aGVHD) is a major complication following transplantation, limiting the success of this therapy. Chitinase 3-like-1 (CHI3L1), a member of the glycosyl hydrolase 18 family, plays a critical role in bacterial infections, allergic disease and a variety of malignancies. Here, we investigated whether CHI3L1 could affect the pathogenesis of aGVHD in a mouse allo-HCT model. In this study, we show that CHI3L1 deficiency in donor T cells increased the severity of aGVHD through enhancing systemic and local inflammation...
March 16, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28324803/leishmania-donovani-resistant-to-ambisome-or-miltefosine-exacerbates-cd58-expression-on-nk-cells-and-promotes-trans-membrane-migration-in-association-with-cd2
#4
Pushkar Shivam, Sarita Kumari, Fauzia Jamal, Vikash Kumar, Manish Kumar, Sanjiva Bimal, Shyam Narayan, Vidya Nand Ravi Das, Krishna Pandey, Anil Kumar Gupta, Pradeep Das, Shubhankar Kumar Singh
Visceral leishmaniasis (VL) is a disease that is associated with compromised immunity and drug un-responsiveness as well as with the emergence of drug resistance in Leishmania donovani (Ld). Ld down-modulates cellular immunity by manipulating signaling agents, including a higher expression of the adhesion molecule CD58. The expression of CD58 and CD2 on natural killer (NK) cells facilitates intercellular adhesion and signaling. The influence of drug-resistant Ld on the expression of CD58 and CD2 was addressed in this study...
March 16, 2017: Cytokine
https://www.readbyqxmd.com/read/28324794/the-socio-political-context-of-migration-and-reproductive-health-disparities-the-case-of-early-sexual-initiation-among-mexican-origin-immigrant-young-women
#5
Kate Coleman-Minahan
Prior research often explains the lower risk of early sexual initiation among foreign-born Mexican-origin young women by a patriarchal and sexually conservative "traditional Latino culture." This definition overlooks structural factors such as exploitation of migrant workers, and conflates gender inequality and sexual expectations. I use an intersectional framework and the theory of gender and power to explore how gender inequality and sexual expectations are both influenced by structural factors and affect reproductive health outcomes...
March 9, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28324782/two-dimensional-bismuth-oxybromide-coupled-with-molybdenum-disulphide-for-enhanced-dye-degradation-using-low-power-energy-saving-light-bulb
#6
W P Cathie Lee, Fhu-Hin Wong, Nicole K Attenborough, Xin Ying Kong, Lling-Lling Tan, S Sumathi, Siang-Piao Chai
In the present work, two-dimensional bismuth oxybromide (BiOBr) was synthesized and coupled with co-catalyst molybdenum disulphide (MoS2) via a simple hydrothermal process. The photoactivity of the resulting hybrid photocatalyst (MoS2/BiOBr) was evaluated under the irradiation of 15 W energy-saving light bulb at ambient condition using Reactive Black 5 (RB5) as model dye solution. The photo-degradation of RB5 by BiOBr loaded with 0.2 wt% MoS2 (MoBi-2) exhibited more than 1.4 and 5.0 folds of enhancement over pristine BiOBr and titanium dioxide (Degussa, P25), respectively...
March 18, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28324618/thermogelling-chitosan-lactate-hydrogel-improves-functional-recovery-after-a-c2-spinal-cord-hemisection-in-rat
#7
Katarzyna Nawrotek, Tanguy Marqueste, Zofia Modrzejewska, Roman Zarzycki, Agnieszka Rusak, Patrick Decherchi
The present study was designed to provide an appropriate micro-environment for regenerating axotomized neurons and proliferating/migrating cells. Because of its intrinsic permissive properties, biocompatibility and biodegradability, we chose to evaluate the therapeutic effectiveness of a chitosan-based biopolymer. The biomaterial toxicity was measured through in vitro test based on fibroblast cell survival on thermogelling chitosan lactate hydrogel substrate and then polymer was implanted into a C2 hemisection of the rat spinal cord...
March 21, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28324601/two-photon-intravital-microscopy-animal-preparation-protocol-to-study-cellular-dynamics-in-pathogenesis
#8
Erinke van Grinsven, Chloé Prunier, Nienke Vrisekoop, Laila Ritsma
Two-photon intravital microscopy (2P-IVM) is an advanced imaging platform that allows the visualization of dynamic processes at subcellular resolution in vivo. Dynamic processes like cell migration, cell proliferation, cell-cell interactions, and cell signaling have an interactive character and occur in complex environments. Hence, it is of pivotal importance to study these processes in living animals, using for example 2P-IVM. 2P-IVM can be performed on a variety of tissues, from the skin of the animal to internal organs, and a variety of methods can be utilized to perform 2P-IVM on these tissues...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28324104/vasoprotective-activities-of-the-adrenomedullin-ramp2-system-in-endothelial-cells
#9
Xian Xian, Takayuki Sakurai, Akiko Kamiyoshi, Yuka Ichikawa-Shindo, Megumu Tanaka, Teruhide Koyama, Hisaka Kawate, Lei Yang, Tian Liu, Akira Imai, Liuyu Zhai, Kazutaka Hirabayashi, Kun Dai, Keiya Tanimura, Teng Liu, Nanqi Cui, Kyoko Igarashi, Akihiro Yamauchi, Takayuki Shindo
Neointimal hyperplasia is the primary lesion underlying atherosclerosis and restenosis after coronary intervention. We previously described the essential angiogenic function of the adrenomedullin (AM)-receptor activity-modifying protein 2 (RAMP2) system. In the present study, we assessed the vasoprotective actions of the endogenous AM-RAMP2 system using a wire-induced vascular injury model. We found that neointima formation and vascular smooth muscle cell proliferation were enhanced in RAMP2+/- male mice. The injured vessels from RAMP2+/- mice showed greater macrophage infiltration, inflammatory cytokine expression and oxidative stress than vessels from wild-type mice, and less re-endothelialization...
January 27, 2017: Endocrinology
https://www.readbyqxmd.com/read/28324054/ccdc141-mutations-in-idiopathic-hypogonadotropic-hypogonadism
#10
Ihsan Turan, B Ian Hutchins, Bulent Hacihamdioglu, L Damla Kotan, Fatih Gurbuz, Ayca Ulubay, Eda Mengen, Bilgin Yuksel, Susan Wray, A Kemal Topaloglu
Context: GnRH neurons originate outside the central nervous system in the olfactory placode and migrate into the CNS, becoming integral components of the hypothalamic-pituitary-gonadal axis. Failure of this migration can lead to Idiopathic Hypogonadotropic Hypogonadism (IHH)/Kallmann Syndrome (KS). We have previously shown that CCDC141 knockdown leads to impaired migration of GnRH neurons but not of olfactory receptor neurons. Objective: The aim of this study was to further describe the phenotype and prevalence of CCDC141 mutations in IHH/KS...
January 23, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28323933/research-resource-transcriptional-dynamics-of-cultured-human-villous-cytotrophoblasts
#11
Joshua F Robinson, Mirhan Kapidzic, Matthew Gormley, Katherine Ona, Terrence Dent, Helia Seifikar, Emily G Hamilton, Susan J Fisher
During human pregnancy, cytotrophoblasts (CTBs) play key roles in uterine invasion, vascular remodeling, and anchoring of the feto-placental unit. Due to the challenges associated with studying human placentation in utero, cultured primary villous CTBs are used as a model of the differentiation pathway that leads to invasion of the uterine wall. In vitro, CTBs emulate in vivo cell behaviors, such as migration, aggregation and substrate penetration. While some of the molecular features related to these cell behaviors have been described, the underlying mechanisms, at a global level, remain undefined at mid-gestation...
March 8, 2017: Endocrinology
https://www.readbyqxmd.com/read/28323887/involvement-of-small-g-protein-rhob-in-the-regulation-of-proliferation-adhesion-and-migration-by-dexamethasone-in-osteoblastic-cells
#12
Fei Diao, Kangyao Chen, Yan Wang, Yidong Li, Weidong Xu, Jian Lu, Yu-Xia Chen
Long-term exposure to therapeutic doses of glucocorticoids (GCs) results in bone remodeling, which frequently causes osteoporosis and fracture healing retardation because of the abnormality of osteoblastic proliferation and differentiation. The mechanisms of GCs' effect on osteoblasts are largely unknown. In this present study, we found that dexamethasone (Dex) could induce the expression of the small G protein, RhoB, in mRNA and protein levels in the osteoblast-derived osteosarcoma cell lines MG-63. The up-regulation of RhoB mRNA by Dex mainly occurs at posttranscriptional level by increasing its mRNA stability through PI-3K/Akt and p38 mitogen-activated protein kinase signaling pathways...
2017: PloS One
https://www.readbyqxmd.com/read/28323883/ubiquitously-expressed-human-beta-defensin-1-hbd1-forms-bacteria-entrapping-nets-in-a-redox-dependent-mode-of-action
#13
Judith Raschig, Daniela Mailänder-Sanchez, Anne Berscheid, Jürgen Berger, Adam A Strömstedt, Lioba F Courth, Nisar P Malek, Heike Brötz-Oesterhelt, Jan Wehkamp
Ever since the discovery of endogenous host defense antimicrobial peptides it has been discussed how these evolutionary conserved molecules avoid to induce resistance and to remain effective. An Human ß-defensin 1 (hBD1) is an ubiquitously expressed endogenous antimicrobial peptide that exhibits qualitatively distinct activities between its oxidized and reduced forms. Here, we explore these antimicrobial mechanisms. Surprisingly, using electron microscopy we detected a so far unknown net-like structure surrounding bacteria, which were treated with the reduced but not the oxidized form of hBD1...
March 21, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28323735/covered-balloon-expanding-stents-in-airway-stenosis
#14
Adnan Majid, Fayez Kheir, Jey Chung, Daniel Alape, Bryan Husta, Scott Oh, Erik Folch
BACKGROUND: The balloon-expanding stents are widely available but rarely described for use within the tracheobronchial tree. This report describes our experience with these stents in airway stenosis particularly as a lobar salvage therapy. METHODS: This was a retrospective review of all records in which the balloon-expanding stents were used at a tertiary medical center. Ages, sex, location of stenosis, etiology of stenosis, stent size, duration of stent placement and associated interventions for airway stenosis were recorded...
April 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28323575/lung-laryngeal-and-other-respiratory-cancer-incidence-among-japanese-atomic-bomb-survivors-an-updated-analysis-from-1958-through-2009
#15
Elizabeth K Cahoon, Dale L Preston, Donald A Pierce, Eric Grant, Alina V Brenner, Kiyohiko Mabuchi, Mai Utada, Kotaro Ozasa
The Life Span Study (LSS) of Japanese atomic bomb survivors is comprised of a large, population-based cohort offering one of the best opportunities to study the relationship between exposure to radiation and incidence of respiratory cancers. Risks of lung, laryngeal and other cancers of the respiratory system were evaluated among 105,444 LSS subjects followed from 1958 to 2009. During this period, we identified 2,446 lung, 180 laryngeal and 115 other respiratory (trachea, mediastinum and other ill-defined sites) first primary incident cancer cases...
March 21, 2017: Radiation Research
https://www.readbyqxmd.com/read/28323490/triterpenoid-acids-as-important-antiproliferative-constituents-of-european-elderberry-fruits
#16
Michał Gleńsk, Elżbieta Czapińska, Marta Woźniak, Ireneusz Ceremuga, Maciej Włodarczyk, Grzegorz Terlecki, Piotr Ziółkowski, Ewa Seweryn
In Europe, both the fruits and flowers of Sambucus nigra L. have been used against cold, as well as laxative, diaphoretic, and diuretic remedies. There are also a number of commercially available food products that contain elderberry juice, puréed or dried elderberries. Recent comprehensive literature data on pharmacology and chemistry of Sambuci fructus have encouraged us to screen extracts with different polarities from this plant material against cancer cell lines. The cytotoxic activity of the ethyl acetate and aqueous acetone extracts from elderberries as well as detected triterpenoids on human colon adenocarcinoma cell line (LoVo) and human breast cancer cell line (MCF-7) was investigated by sulforhodamine B assay...
March 21, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28323432/electronic-structures-and-oh-induced-atmospheric-degradation-of-cf3nsf2-a-potential-green-dielectric-replacement-for-sf6
#17
Lin Cheng, Xiaojuan Yu, Kun Zhao, Hua Hou, Baoshan Wang
Electronic structures of Trifluoromethyl imionosulfur difluoride (CF3NSF2) and degradation mechanisms by hydroxyl radical have been investigated using density functional theory (M06-2X), the complete basis set quadratic CBS-Q, and the explicitly correlated coupled-cluster methods [CCSD(T)-F12]. The d-function augmented Correlation-consistent basis sets including triple- and quadruple- were employed for the sulfur-containing species. It was found that CF3NSF2 exists as two conformations connected by the internal rotation of CF3 around the central NS bond...
March 21, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28323410/zno-quantum-dots-decorated-zn2sno4-nanowire-heterojunction-photodetectors-with-drastic-performance-enhancement-and-flexible-ultraviolet-image-sensors
#18
Ludong Li, Leilei Gu, Zheng Lou, Zhiyong Fan, Guozhen Shen
Here we report fabrication of high-performance ultraviolet photodetectors based on a unique heterojunction device structure in which ZnO quantum dots were used to decorate Zn2SnO4 nanowires. Systematic investigations have shown their ultrahigh light-to-dark current ratio (up to 6.8 × 104), specific detectivity (up to 9.0×1017 Jones), photoconductive gain (up to 1.1 × 107), fast response, and excellent stability. Compared with a pristine Zn2SnO4 nanowire, a quantum dots decorated nanowire demonstrated about 10 times higher photocurrent and responsivity...
March 21, 2017: ACS Nano
https://www.readbyqxmd.com/read/28320108/mir-103-regulates-triple-negative-breast-cancer-cells-migration-and-invasion-through-targeting-olfactomedin-4
#19
Bin Xiong, Xuefeng Lei, Lei Zhang, Jia Fu
Our previous study showed olfactomedin 4 (OLFM4) suppressed triple-negative breast cancer cells migration, invasion and metastasis-associated protein MMP 9 expression. OLFM4 was identified as a potential target of miR-103 according to microRNA target databases and published studies. The aim of this study is to validate the relationship between miR-103 and OLFM4, and explore the function and clinical significance of miR-103 in triple-negative breast cancer patients. In our results, miR-103 negatively regulated OLFM4 expression by directly targeting its 3'-UTR...
March 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28320106/ctrp3-attenuates-hepatic-stellate-cell-activation-through-transforming-growth-factor-%C3%AE-smad-signaling-pathway
#20
Chuantao Cheng, Shuo Yu, Ran Kong, Qinggong Yuan, Yuefeng Ma, Wenbin Yang, Gang Cao, Liyi Xie
Activation of hepatic stellate cells (HSCs) plays a pivotal role in the development of liver fibrosis. C1q/tumor necrosis factor-related protein 3 (CTRP3), a member of CTRPs, was involved in fibrosis. However, little is known about the role of CTRP3 in liver fibrosis. This study aimed to determine its role in liver fibrosis and explore the possible mechanism. Our results demonstrated that CTRP3 was lowly expressed in liver fibrosis tissues and activated HSCs. Overexpression of CTRP3 inhibited the proliferation and migration of HSCs, as well as suppressed the expression of extracellular matrix (ECM) in transforming growth factor-β1 (TGF-β1)-stimulated HSC-T6 cells...
March 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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