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https://www.readbyqxmd.com/read/28822324/preventive-effects-of-interleukin-6-in-lipopolysaccharide-d-galactosamine-induced-acute-liver-injury-via-regulating-inflammatory-response-in-hepatic-macrophages
#1
Long Li, Chaoli Duan, Yan Zhao, Xiaofang Zhang, Hongyan Yin, Tianxi Wang, Caoxin Huang, Suhuan Liu, Shuyu Yang, Xuejun Li
Lipopolysaccharide/d-Galactosamine (LPS/d-Gal)-induced acute liver injury is characterized by significant inflammatory responses including TNF-α and interleukin-6 (IL-6) and is a widely applied experimental model for inflammation research. TNF-α is critical in the progression of LPS/d-Gal-induced liver injury. However, the role of IL-6 in this model is still unknown. In the present study, we aim to elucidate the involvement of IL-6 in the pathogenesis of acute liver injury induced by LPS/d-Gal in mice and its underlying mechanism...
August 16, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28821422/adhesion-molecules-chemokines-and-matrix-metallo-proteinases-response-after-albendazole-and-albendazole-plus-steroid-therapy-in-swine-neurocysticercosis
#2
Satyendra K Singh, Kashi N Prasad, Aloukick K Singh, Kamlesh K Gupta, Amrita Singh, Mukesh Tripathi, Rakesh K Gupta
The treatment of neurocysticercosis (NCC) varies with location, number and stage of the Taenia solium cysticerci (cysts). Albendazole (ABZ) effectively kills cysticerci, and subsequently induces neuro-inflammation facilitated by leukocyte infiltration. We hypothesize that immune response varies around drug responder (degenerating/dying) and non-responder (viable) cysts after ABZ and ABZ plus steroid (ABZS) therapy, which may determine the disease pathogenesis. Twenty cysticercotic swine were treated with ABZ (n = 10; group1) and ABZS (n = 10; group2)...
August 15, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28815947/olive-oil-phenolics-prevent-oxysterol-induced-pro-inflammatory-cytokine-secretion-and-ros-production-in-human-pbmcs-through-modulation-of-p38-and-jnk-pathways
#3
Gessica Serra, Monica Deiana, Jeremy P E Spencer, Giulia Corona
SCOPE: The aim of the present study was to investigate the ability of extra virgin olive oil (EVOO) polyphenols to counteract the pro-inflammatory effects induced by dietary and endogenous oxysterols in ex-vivo immune cells. METHODS AND RESULTS: Peripheral blood mononuclear cells (PBMCs), separated from the whole blood of healthy donors, were utilised and were stimulated with an oxysterols mixture, in the presence of physiologically relevant concentrations of the EVOO polyphenols, hydroxytyrosol (HT), tyrosol (TYR) and homovanillic alcohol (HVA)...
August 16, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28805233/analytic-and-dynamic-secretory-profile-of-patient-derived-cytokine-induced-killer-cells
#4
Giulia Mesiano, Roberta Zini, Giulia Montagner, Nicoletta Bianchi, Rossella Manfredini, Antonella Chillemi, Massimo Aglietta, Giovanni Grignani, Ilaria Lampronti, Erika Fiorino, Fabio Malavasi, Dario Sangiolo, Roberto Gambari, Davide Ferrari
Adoptive immunotherapy with Cytokine Induced Killer (CIK) cells has shown antitumor activity against several kinds of cancers in preclinical models and clinical trials. CIK cells are a subset of ex vivo expanded T lymphocytes with T-NK phenotype and MHC-unrestricted antitumor activity. Literature provides scanty information on cytokines, chemokines and growth factors secreted by CIK cells. Therefore, we investigated the secretory profile of CIK cells generated from tumor patients. The secretome analysis was performed at specific time points (day 1, day 14 and day 21) of CIK cells expansion...
August 9, 2017: Molecular Medicine
https://www.readbyqxmd.com/read/28796783/myd88-contribution-to-ocular-surface-homeostasis
#5
Rose Y Reins, Justin Courson, Carolina Lema, Rachel L Redfern
The cornea must maintain homeostasis, enabling rapid response to injury and microbial insult, to protect the eye from insult and infection. Toll-like receptors (TLRs) are critical to this innate immune response through the recognition and response to pathogens. Myeloid differentiation primary response (MyD88) is a key signaling molecule necessary for Toll-like receptor (TLR) and interleukin-1 receptor (IL-1R)-mediated immune defense and has been shown to be necessary for corneal defense during infection. Here, we examined the intrinsic role of TLR signaling in ocular surface tissues by determining baseline levels of inflammatory mediators, the response to mechanical stimuli, and corneal infection in MyD88-deficient mice (MyD88-/-)...
2017: PloS One
https://www.readbyqxmd.com/read/28782174/ccl2-ccl5-and-igf-1-participate-in-the-immunomodulation-of-osteogenesis-during-m1-m2-transition-in-vitro
#6
Luis A Córdova, Florence Loi, Tzu-Hua Lin, Emmanuel Gibon, Jukka Pajarinen, Akira Nabeshima, Laura Lu, Zhenyu Yao, Stuart B Goodman
The modulation of macrophage phenotype from pro-inflammatory (M1) to tissue healing (M2) via exogenous addition of interleukin-4 (IL-4) facilitates osteogenesis; however, the molecular mediators underlying this phenomenon remain unknown. This study characterizes the IL-4-dependent paracrine crosstalk between macrophages and osteoprogenitors and its effect on osteogenesis in vitro. Primary murine M1 were co-cultured with MC3T3 cells (M1-MC3T3) in both transwell plates and direct co-cultures. To modulate M1 to M2, M1-MC3T3 were treated with IL-4 (20ng/mL) at day 3 after seeding (M1+IL-4-MC3T3)...
August 7, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28763204/kumatakenin-isolated-from-cloves-induces-cancer-cell-apoptosis-and-inhibits-the-alternative-activation-of-tumour-associated-macrophages
#7
Jeong-Hwa Woo, Ji-Hye Ahn, Dae Sik Jang, Kyung-Tae Lee, Jung-Hye Choi
The flower buds of Syzygium aromaticum (cloves) have been used as a spice and traditional herbal medicine. The biological activities of kumatakenin, a flavonoid that has recently been isolated from cloves, are poorly characterized. In the present study, we investigated the anti-cancer effects of kumatakenin in human ovarian cancer cells and tumour-associated macrophages (TAM). We found that kumatakenin exhibited significant cytotoxic activity in human ovarian cancer cell lines, SKOV3 and A2780. A propidium iodide and Annexin V-FITC staining assay revealed that kumatakenin induces apoptosis in ovarian cancer cells...
August 1, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28763032/a-chip-for-estrogen-receptor-action-detection-of-biomarkers-released-by-mcf-7-cells-through-estrogenic-and-anti-estrogenic-effects
#8
Konstanze Gier, Claudia Preininger, Ursula Sauer
The fluorescence-based multi-analyte chip platform for the analysis of estrogenic and anti-estrogenic substances is a new in vitro tool for the high throughput screening of environmental samples. In contrast to existing tools, the chip investigates the complex action of xenoestrogens in a human cell model by characterizing protein expression. It allows for the quantification of 10 proteins secreted by MCF-7 cells, representing various biological and pathological endpoints of endocrine action and distinguishing between estrogen- and anti-estrogen-dependent secretion of proteins...
August 1, 2017: Sensors
https://www.readbyqxmd.com/read/28759213/design-and-evolution-of-a-macrocyclic-peptide-inhibitor-of-the-sonic-hedgehog-patched-interaction
#9
Andrew E Owens, Ivan de Paola, William A Hansen, Yi-Wen Liu, Sagar D Khare, Rudi Fasan
The Hedgehog (Hh) signaling pathway plays a central role during embryonic development and its aber-rant activation has been implicated in the development and progression of several human cancers. Ma-jor efforts toward the identification of chemical modulators of the Hedgehog pathway has yielded sev-eral antagonists of the GPCR-like Smoothened receptor. In contrast, potent inhibitors of the Sonic Hedgehog/Patched interaction, the most upstream event in ligand-induced activation of this signaling pathway, have been elusive...
July 31, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28756094/nanotraps-with-biomimetic-surface-as-decoys-for-chemokines
#10
Ivan Guryanov, Sabrina Cipriani, Stefano Fiorucci, Natalia Zashikhina, Silvia Marchianò, Paolo Scarpelli, Viktor Korzhikov-Vlakh, Ekaterina Popova, Evgenia Korzhikova-Vlakh, Barbara Biondi, Fernando Formaggio, Tatiana Tennikova
A creation of nanotraps that could selectively recognize the chemotactic mediators of leukocyte adhesion and eliminate them from the bloodstream and tissue intercellular matrix is a promising approach for the treatment of various inflammatory and autoimmune diseases. We designed nanotraps as artificial decoy receptors based on poly(lactic acid) (PLA) nanoparticles covered by heparin and bearing on the surface two fragments of CCR5 receptor (N-terminal domain, Nt, and second extracellular loop, ECL2), responsible for chemokine binding...
July 26, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28747347/trim8-negatively-regulates-tlr3-4-mediated-innate-immune-response-by-blocking-trif-tbk1-interaction
#11
Wen Ye, Ming-Ming Hu, Cao-Qi Lei, Qian Zhou, Heng Lin, Ming-Shun Sun, Hong-Bing Shu
TLR-mediated signaling pathways play critical roles in host defense against microbials. However, dysregulation of innate immune and inflammatory responses triggered by TLRs would result in harmful damage to the host. Using a Trim8 gene-knockout mouse model, we show that tripartite motif (TRIM) 8 negatively regulates TLR3- and TLR4-mediated innate immune and inflammatory responses. TRIM8 deficiency leads to increased polyinosinic-polycytidylic acid- and LPS-triggered induction of downstream anti-microbial genes including TNF, Il6, Rantes, and Ifnb, evaluated serum cytokine levels, and increased susceptibility of mice to polyinosinic-polycytidylic acid- and LPS-induced inflammatory death as well as Salmonella typhimurium infection-induced loss of body weight and septic shock...
July 26, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28726743/the-effect-of-n-terminal-cyclization-on-the-function-of-the-hiv-entry-inhibitor-5p12-rantes
#12
Anna F Nguyen, Megan S Schill, Mike Jian, Patricia J LiWang
Despite effective treatment for those living with Human Immunodeficiency Virus (HIV), there are still two million new infections each year. Protein-based HIV entry inhibitors, being highly effective and specific, could be used to protect people from initial infection. One of the most promising of these for clinical use is 5P12-RANTES, a variant of the chemokine RANTES/CCL5. The N-terminal amino acid of 5P12-RANTES is glutamine (Gln; called Q0), a residue that is prone to spontaneous cyclization when at the N-terminus of a protein...
July 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28717145/acetylsalicylic-acid-differentially-limits-the-activation-and-expression-of-cell-death-markers-in-human-platelets-exposed-to-staphylococcus-aureus-strains
#13
Adrien Chabert, Pauline Damien, Paul O Verhoeven, Florence Grattard, Philippe Berthelot, Fabrice Zeni, Laurence Panicot-Dubois, Stéphane Robert, Françoise Dignat-George, Marie-Ange Eyraud, Bruno Pozzetto, Bernard Payrastre, Fabrice Cognasse, Olivier Garraud, Hind Hamzeh-Cognasse
Beyond their hemostatic functions, platelets alter their inflammatory response according to the bacterial stimulus. Staphylococcus aureus is associated with exacerbated inflammation and thrombocytopenia, which is associated with poor prognosis during sepsis. Acetylsalicylic acid and statins prevent platelet aggregation and decrease the mortality rate during sepsis. Therefore, we assessed whether these two molecules could reduce in vitro platelet activation and the inflammatory response to S. aureus. Platelets were exposed to clinical strains of S...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28713901/protective-effects-of-marrubiin-improve-endometriosis-through-suppression-of-the-expression-of-rantes
#14
Xiao-Hong Sun
Marrubiin can improve blood and lymph microcirculation disturbance, and has pharmacological effects in myocardial protection, anti‑inflammation and anti‑oxidation. The aim of the present study was to evaluate the protective effects of marrubiin on endometriosis through suppression of the expression of regulated on activation, normal T cell expressed and secreted (RANTES). Endometriotic cells were implanted into the peritoneal cavity of mice, and these mice were injected estradiol benzoate (30 µg/kg) once each day for 14 days...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28709700/prasugrel-as-opposed-to-clopidogrel-improves-endothelial-nitric-oxide-bioavailability-and-reduces-platelet-leukocyte-interaction-in-patients-with-unstable-angina-pectoris-a-randomized-controlled-trial
#15
Tanja K Rudolph, Alexander Fuchs, Anna Klinke, Andrea Schlichting, Kai Friedrichs, Martin Hellmich, Martin Mollenhauer, Edzard Schwedhelm, Stephan Baldus, Volker Rudolph
BACKGROUND: Platelet inhibition has been linked to improved endothelial function, a prognostic factor in coronary artery disease. Whether prasugrel, a potent platelet inhibitor, affects endothelial function remains unknown. METHODS: This was a double-blind, randomized, active-controlled, parallel trial. Patients with unstable angina pectoris undergoing percutaneous coronary intervention (PCI) received either a daily dose of clopidogrel 75mg (n=23) or prasugrel 10mg (n=22)...
July 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28706983/preimplantation-kidney-biopsies-of-extended-criteria-donors-have-a-heavier-inflammatory-burden-than-kidneys-from-standard-criteria-donors
#16
Camila M Mazeti-Felicio, Heloisa C Caldas, Ida M M Fernandes-Charpiot, Camila Z Dezotti, Maria A S F Baptista, Mario Abbud-Filho
BACKGROUND: Donors after brain death develop a systemic proinflammatory state that may predispose the kidneys to injury after transplantation. Because it is not known whether this inflammatory environment similarly affects the kidneys from expanded criteria donor (ECD) and standard criteria donors (SCD), we sought to evaluate differences in the gene expression of inflammatory cytokines in preimplantation biopsies (PIBx) from ECD and SCD kidneys. METHODS: Cytokines gene expression was measured in 80 PIBx (SCD, 52; ECD, 28) and associated with donor variables...
July 2017: Transplantation Direct
https://www.readbyqxmd.com/read/28690191/methyl-e-3-3-4-dihydroxyphenyl-acryloyl-tryptophanate-can-suppress-mcp-1-expression-by-inhibiting-p38-map-kinase-and-nf-%C3%AE%C2%BAb-in-lps-stimulated-differentiated-thp-1-cells
#17
Jae B Park, Thomas T Y Wang
Methyl (E)-(3-(3,4-dihydroxyphenyl)acryloyl)tryptophanate (MHAT) is an O-methyl ester of javamide-II showing strong anti-inflammatory activity. Therefore, in this study, MHAT was chemically synthesized, and its effects on p38 MAP kinase, NF-κB, and monocyte chemotactic factor-1 (MCP-1) expression were investigated in LPS-stimulated differentiated THP-1 cells. MHAT inhibited p38 MAP kinase with an IC50 of 12μM, and the inhibition was supported by an in silico model showing that its binding to p38 MAP kinase was stronger than that of SB203580...
September 5, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28690034/interplay-of-inflammatory-gene-expression-in-pericytes-following-japanese-encephalitis-virus-infection
#18
Cheng-Yi Chang, Jian-Ri Li, Yen-Chuan Ou, Shih-Yi Lin, Ya-Yu Wang, Wen-Ying Chen, Yu-Hui Hu, Ching-Yi Lai, Chen-Jung Chang, Chun-Jung Chen
Neuroinflammation is a pathological hallmark and has been implicated in the pathogenesis of Japanese encephalitis. Although brain pericytes show regulatory effects on neuroinflammation, their involvement in Japanese encephalitis-associated neuroinflammation is not understood. Here, we demonstrated that brain microvascular pericytes could be an alternative cellular source for the induction and/or amplification of neuroinflammation caused by Japanese encephalitis virus (JEV) infection. Infection of cultured pericytes with JEV caused profound production of IL-6, RANTES, and prostaglandin E2 (PGE2)...
July 6, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28689166/ocular-surface-cytokine-profile-in-chronic-stevens-johnson-syndrome-and-its-response-to-mucous-membrane-grafting-for-lid-margin-keratinisation
#19
Srividya Gurumurthy, Geetha Iyer, Bhaskar Srinivasan, Shweta Agarwal, Narayanasamy Angayarkanni
BACKGROUND: To study the tear cytokine and the conjunctival and oral mucosal marker profile in chronic ocular Stevens-Johnson syndrome (SJS) and their alteration following mucous membrane grafting (MMG) for lid margin keratinisation (LMK). METHODS: In a 1-year prospective study, SJS cases (n=25) and age-matched/sex-matched healthy controls (n=25) were recruited. Tear specimen (Schirmer's strip), conjunctival and oral mucosal imprints were collected from controls and SJS cases pre-MMG and post-MMG (at first follow-up, n=17)...
July 8, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28689023/profiling-of-cytokines-chemokines-and-other-soluble-proteins-as-a-potential-biomarker-in-colorectal-cancer-and-polyps
#20
Nor Adzimah Johdi, Luqman Mazlan, Ismail Sagap, Rahman Jamal
Soluble proteins including cytokines, chemokines and growth factors are small proteins that mediate and regulate immunity. They involved in the pathogenesis of many diseases including cancers. The concentration of these proteins in biological fluids (serum or plasma) and tissues in diseases may suggest pathway activation that leads to inflammatory response or disease progression. Therefore, these soluble proteins may be useful as a tool for screening, diagnosis classification between stages of disease or surveillance for therapy...
July 6, 2017: Cytokine
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