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https://www.readbyqxmd.com/read/28726961/functional-single-walled-carbon-nanotubes-car-for-targeting-dopamine-delivery-into-the-brain-of-parkinsonian-mice
#1
Qing Guo, Huihui You, Xu Yang, Bencheng Lin, Zhihong Zhu, Zhisong Lu, Xiaoxiao Li, Yun Zhao, Lin Mao, Shiping Shen, Haoyan Cheng, Jiting Zhang, Lingfu Deng, Jianhua Fan, Zhuge Xi, Rui Li, Chang Ming Li
Current treatments for Parkinson's disease (PD) are limited, partly due to the difficulties posed by the blood brain barrier (BBB) when delivering drugs to the brain. Herein, we explore the feasibility and efficacy of functional single-walled carbon nanotubes 'CAR' (SWCNT-PEGs-Lf) which carry and target-deliver dopamine (DA) to the brain in PD mice for treatment. SWCNTs can penetrate the cell-membrane remarkably, with the characteristics including high drug-loading and pH-dependent therapeutic unloading capacities...
July 20, 2017: Nanoscale
https://www.readbyqxmd.com/read/28726782/pkc%C3%AE-phosphorylates-traf2-to-protect-against-intestinal-ischemia-reperfusion-induced-injury
#2
Wei Zhou, Jihong Yao, Guangzhi Wang, Zhao Chen, Zhenlu Li, Dongcheng Feng, Yang Li, Wasim Qasim, Wenzhi Tan, Shili Ning, Xiaofeng Tian
Intestinal ischemia-reperfusion (I/R) is a common clinical problem that occurs during various clinical pathological processes. Excessive apoptosis has an indispensable role in intestinal I/R injury. Tumor necrosis factor receptor-associated factor 2 (TRAF2) and PKCζ have an essential role in apoptosis. Here, we aimed to investigate the effects of PKCζ and TRAF2 and to explore the correlation between PKCζ and TRAF2 in intestinal I/R injury. Mice were subjected to intestinal I/R injury in vivo. In vitro experiments were conducted by treating Caco-2 cells with hypoxia/reoxygenation (H/R) stimulation to simulate intestinal I/R...
July 20, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28724844/a-review-of-the-active-treatments-for-toxic-epidermal-necrolysis
#3
Yuri Kinoshita, Hidehisa Saeki
Toxic epidermal necrolysis (TEN) is a severe adverse drug reaction associated with the separation of skin and mucous membranes at the dermal-epidermal junction. Although it is rare, many treatments have been trialed because of its high mortality rate. Active interventions performed to date include the use of systemic corticosteroids, intravenous immunoglobulins (IVIg), cyclosporine, plasmapheresis, anti-tumor necrosis factor drugs and N-acetylcysteine, but none has been established as the most effective therapy...
2017: Journal of Nippon Medical School, Nippon Ika Daigaku Zasshi
https://www.readbyqxmd.com/read/28722236/the-membrane-type-estrogen-receptor-g-protein-coupled-estrogen-receptor-suppresses-lipopolysaccharide-induced-interleukin-6-via-inhibition-of-nuclear-factor-kappa-b-pathway-in-murine-macrophage-cells
#4
Mariko Okamoto, Takuto Suzuki, Yoichi Mizukami, Teruo Ikeda
The female sex hormone estrogen exerts anti-inflammatory effects. The G-protein-coupled estrogen receptor (GPER) has been recently identified as a novel membrane-type estrogen receptor that can mediate non-genomic estrogenic effects on many cell types. We previously demonstrated that GPER inhibits tumor necrosis factor alpha-induced expression of interleukin 6 (IL-6) through repression of nuclear factor-kappa B (NF-κB) promoter activity using human breast cancer cells. Although several reports have indicated that GPER suppresses Toll-like receptor-induced inflammatory cytokine expression in macrophages, the molecular mechanisms of the inhibition of cytokine production via GPER remain poorly understood...
July 18, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28715583/tnf%C3%AE-induced-disruption-of-the-blood-retinal-barrier-in-vitro-is-regulated-by-intracellular-3-5-cyclic-adenosine-monophosphate-levels
#5
Anne-Eva van der Wijk, Ilse M C Vogels, Cornelis J F van Noorden, Ingeborg Klaassen, Reinier O Schlingemann
Purpose: Proinflammatory cytokines such as tumor necrosis factor (TNFα) may have a causative role in blood-retinal barrier (BRB) disruption, which is an essential step in the development of diabetic macular edema. The purpose of our study was to determine whether TNFα increases permeability in an in vitro model of the BRB and to explore the mechanisms involved. Methods: Primary bovine retinal endothelial cells (BRECs) were grown on Transwell inserts and cells were stimulated with TNFα or a combination of TNFα, IL1β, and VEGF...
July 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28713944/truncated-apolipoprotein-c-i-induces-apoptosis-in-neuroblastoma-by-activating-caspases-in-the-extrinsic-and-intrinsic-pathways
#6
Fei Guo, Wei Zhao, Lin Yang, Yang Yang, Saiqi Wang, Yingjun Wang, Zhaoming Li, Jiaxiang Wang
Truncated apolipoprotein C-I is a post-translationally modified protein characterized by the loss of threonine and proline residues from the N-terminus of the mature peptide. The truncated peptide is involved in many physiological and pathological processes in vivo and is related to malignant diseases. The aim of the present study was to assess the effects of the truncated peptide on tumorigenesis in neuroblastoma. The truncated peptide was chemically synthesized, and a signal peptide was used as the negative control...
July 14, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28713932/human-trypsin-inhibitor-reduces-the-apoptosis-of-lipopolysaccharide%C3%A2-induced-human-kidney%C3%A2-2-cells-by-promoting-mitochondrial-fusion
#7
Ning Liu, Zhiyi Jiang, Yongjun Liu, Yao Nie, Juan Chen, Bin Ouyang, Xiangdong Guan, Minying Chen
Imbalance in mitochondrial fusion/fission is one of the mechanisms leading to sepsis‑induced mitochondrial dysfunction and cell apoptosis. The present study examined the effects of human trypsin inhibitor (UTI), a well‑known antioxidant and anti‑inflammatory substance, on mitochondrial dynamics and cell apoptosis in lipopolysaccharide (LPS)‑induced human kidney‑2 (HK‑2) cells. The HK‑2 cells were incubated for 24 h either with LPS (800 ng/ml) or LPS (800 ng/ml) mixed with UTI (250 U/ml). Cell viability was assessed using a3‑(4,5‑dimethyl‑2‑thiazolyl)‑2, 5‑diphenyl‑2‑H‑tetrazolium bromide assay...
July 5, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28711658/betulinic-acid-isolated-from-the-leaves-of-syzygium-cumini-l-skeels-ameliorates-the-proteinuria-in-experimental-membranous-nephropathy-through-regulating-nrf2-nf-%C3%AE%C2%BAb-pathways
#8
Brijesh Sutariya, Neetika Taneja, Madhusudan Saraf
Membranous nephropathy (MN) is associated with increased oxidative stress and inflammatory markers in the kidney. Betulinic acid (BA) is a potent antioxidant and anti-inflammatory compound isolated from the leaves of Syzygium cumini (L.) Skeels. In the present study, we investigated the effects of BA on experimental MN in rats and explored the mechanisms by which it enhances antioxidant activities and resolves inflammatory condition in experimental MN. Passive Heymann nephritis (PHN) was induced in Sprague-Dawley rats by a single tail vein injection of anti- Fx1A antiserum...
July 12, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28710113/trap1-ameliorates-renal-tubulointerstitial-fibrosis-in-mice-with-unilateral-ureteral-obstruction-by-protecting-renal-tubular-epithelial-cell-mitochondria
#9
Jun-Feng Chen, Qi-Shun Wu, Yu-Xian Xie, Bo-Lin Si, Ping-Ping Yang, Wen-Yan Wang, Qin Hua, Qing He
Mitochondrial dysfunction causes renal tubular epithelial cell injury and promotes cell apoptosis and renal tubulointerstitial fibrosis (TIF) progression. TNF receptor-associated protein 1 (TRAP1) is a molecular chaperone protein that is localized in mitochondria. It plays an important role in cell apoptosis; however, its functional mechanism in TIF remains unclear. In this study, we observed the effects of TRAP1 in renal tubular epithelial cell mitochondria in mice with unilateral ureteral obstruction and its function in cell apoptosis and TIF...
July 14, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28707770/comparison-of-the-paracrine-activity-of-mesenchymal-stem-cells-derived-from-human-umbilical-cord-amniotic-membrane-and-adipose-tissue
#10
Filip A Dabrowski, Anna Burdzinska, Agnieszka Kulesza, Anna Sladowska, Aleksandra Zolocinska, Kamila Gala, Leszek Paczek, Miroslaw Wielgos
AIM: The study was conducted to investigate secretory activity and define the paracrine potential of mesenchymal stem cells from human umbilical cord and amniotic membrane (UC-MSCs and AM-MSCs, respectively). METHODS: UC-MSCs (n = 6) were obtained from tissue explants using an adherent method after two weeks of incubation. AM-MSCs (n = 6) were obtained by digestion with tripsin and collagenase. MSC phenotype was confirmed in vitro by performing flow cytometry, differentiation assays and vimentin staining...
July 14, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28705375/regulation-of-expression-and-trafficking-of-perforin-2-by-lps-and-tnf-%C3%AE
#11
Peng Xiong, Motoaki Shiratsuchi, Takamitsu Matsushima, Jiyuan Liao, Emi Tanaka, Yasuhiro Nakashima, Ryoichi Takayanagi, Yoshihiro Ogawa
Perforin-2 is constitutively expressed in macrophages that are required for bacterial control. In this study, we found that perforin-2 is expressed in human macrophages with two isoforms: full-length perforin-2a and a splice variant, perforin-2b. Two isoforms show different subcellular distributions. Perforin-2a was predominantly localized to the membrane of endosome-like vesicles by a C-terminal transmembrane domain. In contrast, the short isoform perforin-2b lacking the transmembrane domain failed to localize to the membrane of vesicles...
July 8, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/28704394/genome-wide-host-gene-expression-analysis-in-mice-experimentally-infected-with-pasteurella-multocida
#12
G Bhuvana Priya, Viswas Konasagara Nagaleekar, A Arun Prince Milton, M Saminathan, Amod Kumar, Amit Ranjan Sahoo, Sajad Ahmad Wani, Amit Kumar, S K Gupta, Aditya P Sahoo, A K Tiwari, R K Agarwal, Ravi Kumar Gandham
Pasteurella multocida causes acute septicemic and respiratory diseases, including haemorrhagic septicaemia, in cattle and buffalo with case fatality of 100%. In the present study, mice were infected with P. multocida (1.6 × 103 cfu, intraperitoneal) to evaluate host gene expression profile at early and late stages of infection using high throughput microarray transcriptome analyses. Several differentially expressed genes (DEGs) at both the time points were identified in P.multocida infected spleen, liver and lungs...
2017: PloS One
https://www.readbyqxmd.com/read/28702588/l-lysine-based-lipidated-biphenyls-as-agents-with-anti-biofilm-and-anti-inflammatory-properties-that-also-inhibit-intracellular-bacteria
#13
Chandradhish Ghosh, Paramita Sarkar, Sandip Samaddar, Divakara S S M Uppu, Jayanta Haldar
l-Lysines were conjugated to lipidated biphenyls using simple synthetic chemistry to obtain selective membrane-active antibacterial agents that inhibit cell-wall biosynthesis. The most selective compound bore promising activity against biofilm-related infections and intracellular bacteria, and also suppressed the stimulation of TNF-α induced by lipoteichoic acid. Belligerent to resistance development, it was active in a murine model of MRSA infection.
July 12, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28696795/decoy-receptor-3-down-regulates-centrosomal-protein-70%C3%A2-kda-specifically-in-rheumatoid-synovial-fibroblasts
#14
Koji Fukuda, Yasushi Miura, Toshihisa Maeda, Shinya Hayashi, Ryosuke Kuroda
OBJECTIVES: Decoy receptor 3 (DcR3) competitively binds to Fas ligand, lymphotoxin-related inducible ligand that competes for glycoprotein D binding to herpes virus entry mediator on T cells (LIGHT) and TNF-like ligand 1A (TL1A), thereby preventing their effects. Using a microarray assay, we previously newly identified centrosomal protein 70 kDa (CEP70) as one of the genes whose expression in fibroblast-like synoviocytes from patients with rheumatoid arthritis (RA-FLS) is reduced by DcR3...
July 11, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/28687727/alpha-2-na-k-atpase-silencing-induces-loss-of-inflammatory-response-and-ouabain-protection-in-glial-cells
#15
Paula F Kinoshita, Lidia M Yshii, Ana Maria M Orellana, Amanda G Paixão, Andrea R Vasconcelos, Larissa de Sá Lima, Elisa M Kawamoto, Cristoforo Scavone
Ouabain (OUA) is a cardiac glycoside that binds to Na(+),K(+)-ATPase (NKA), a conserved membrane protein that controls cell transmembrane ionic concentrations and requires ATP hydrolysis. At nM concentrations, OUA activates signaling pathways that are not related to its typical inhibitory effect on the NKA pump. Activation of these signaling pathways protects against some types of injury of the kidneys and central nervous system. There are 4 isoforms of the alpha subunit of NKA, which are differentially distributed across tissues and may have different physiological roles...
July 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28687276/nap1l1-regulates-nf-%C3%AE%C2%BAb-signaling-pathway-acting-on-anti-apoptotic-mcl-1-gene-expression
#16
Toshiaki Tanaka, Yasukazu Hozumi, Mitsuyoshi Iino, Kaoru Goto
Nuclear factor-κB (NF-κB) participates in apoptosis signaling pathway under various pathophysiological conditions. It exerts transcriptional control on the anti-apoptotic Bcl-2 family, such as Bcl-2, Bcl-xl, and Mcl-1, which act on the mitochondrial outer membrane. Previously, we described that NF-κB is negatively regulated by diacylglycerol kinase ζ (DGKζ), an enzyme that phosphorylates a lipid second messenger diacylglycerol. DGKζ downregulation enhances inhibitors of NF-κB α (IκBα) degradation and p65 subunit phosphorylation, leading to enhanced NF-κB transcriptional activity...
July 4, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28678171/the-immune-adjuvant-effects-of-flounder-paralichthys-olivaceus-interleukin-6-on-e-tarda-subunit-vaccine-ompv
#17
Ming Guo, Xiaoqian Tang, Xiuzhen Sheng, Jing Xing, Wenbin Zhan
Interleukin-6 (IL-6) as a pleiotropic cytokine was widely used as an effective adjuvant for vaccines in mammals. In this study, the immune adjuvant effects of two forms of flounder (Paralichthys olivaceus) IL-6, including recombinant IL-6 (rIL-6) and pcDNA3.1-IL-6 (pcIL-6), were evaluated and comparatively analyzed on E. tarda subunit vaccine recombinant outer membrane protein V (rOmpV). The results showed that the relative percent survivals of flounder vaccinated with rOmpV plus rIL-6 or pcIL-6 were significantly higher than that in the two control groups, rOmpV plus recombinant 6× histidine-tag (rHis) or empty expression vector pcDNA3...
July 5, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28676525/tnfrp55-deficiency-promotes-the-development-of-ectopic-endometriotic-like-lesions-in-mouse
#18
Sandra Silvina Vallcaneras, Federica Ghersa, Juan Ignacio Bastón, María Belén Delsouc, Gabriela Meresman, Marilina Casais
Endometriosis is an inflammatory disease depending on estradiol, with TNF-α being one of the most representative cytokines involved in its pathogenesis. TNF-α acts through its bond to the TNFRp55 and TNFRp75 membrane receptors. The aim of the present study was to analyze the effect of the TNFRp55 deficiency on the development of ectopic endometriotic-like lesions. Endometriosis was induced surgically in mice of the C57BL/6 strain, wild type (WT) and TNFRp55-/- (KO). After four weeks, the peritoneal fluid was collected and the lesions were counted, measured with a caliper, removed, weighed, fixed or kept at -80°C...
July 4, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28676205/small-molecules-to-the-rescue-inhibition-of-cytokine-signaling-in-immune-mediated-diseases
#19
REVIEW
Massimo Gadina, Nathalia Gazaniga, Laura Vian, Yasuko Furumoto
Cytokines are small, secreted proteins associated with the maintenance of immune homeostasis but also implicated with the pathogenesis of several autoimmune and inflammatory diseases. Biologic agents blocking cytokines or their receptors have revolutionized the treatment of such pathologies. Nonetheless, some patients fail to respond to these drugs or do not achieve complete remission. The signal transduction originating from membrane-bound cytokine receptors is an intricate network of events that lead to gene expression and ultimately regulate cellular functionality...
July 1, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28673792/cervical-cerclage-placement-decreases-local-levels-of-proinflammatory-cytokines-in-patients-with-cervical-insufficiency
#20
Stephany P Monsanto, Silvia Daher, Erika Ono, Karen Priscilla Tezotto Pendeloski, Évelyn Trainá, Rosiane Mattar, Chandrakant Tayade
BACKGROUND: Cervical insufficiency is characterized by premature, progressive dilation and shortening of the cervix during pregnancy. If left unattended, this can lead to the prolapse and rupture of the amniotic membrane, which usually results in midtrimester pregnancy loss or preterm birth. Previous studies have shown that proinflammatory cytokines such as interleukin-1β, interleukin-6, interleukin-8, and tumor necrosis factor alpha are up-regulated in normal parturition but are also associated with preterm birth...
June 30, 2017: American Journal of Obstetrics and Gynecology
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