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https://www.readbyqxmd.com/read/27913196/nf-kb-regulated-exosomal-mir-155-promotes-the-inflammation-associated-with-arsenite-carcinogenesis
#1
Chao Chen, Fei Luo, Xinlu Liu, Lu Lu, Hui Xu, Qianlei Yang, Junchao Xue, Le Shi, Jun Li, Aihua Zhang, Qizhan Liu
In the cancer microenvironment, extracellular communication allows various types of cells to coordinate and execute biological functions. Emerging evidence indicates that exosomes, as mediators of cell communication, are involved in tumor progression. Little is known, however, about the mechanism by which exosomal miRNAs regulate inflammatory infiltration in arsenite-induced liver cancer. The present research aimed to determine if miRNAs secreted from arsenite-transformed human hepatic epithelial (L-02) cells are transferred into normal L-02 and THLE-3 cells, which are functionally active in the recipient cells...
November 29, 2016: Cancer Letters
https://www.readbyqxmd.com/read/27910925/thrombomodulin-regulates-monocye-differentiation-via-pkc%C3%AE-and-erk1-2-pathway-in-vitro-and-in-atherosclerotic-artery
#2
Chien-Sung Tsai, Yi-Wen Lin, Chun-Yao Huang, Chun-Min Shih, Yi-Ting Tsai, Nai-Wen Tsao, Chin-Sheng Lin, Chun-Che Shih, Hellen Jeng, Feng-Yen Lin
Thrombomodulin (TM) modulates the activation of protein C and coagulation. Additionally, TM regulates monocyte migration and inflammation. However, its role on monocyte differentiation is still unknown. We investigated the effects of TM on monocyte differentiation. First, we found that TM was increased when THP-1 cells were treated with phorbol-12-myristate-13-acetate (PMA). Overexpression of TM enhanced the macrophage markers, CD14 and CD68 expression in PMA-induced THP-1. TM siRNA depressed the PMA-induced increase of p21(Cip1/WAF1) via ERK1/2-NF-kB p65 signaling...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27908264/hypoxia-and-inflammation-in-prostate-cancer-progression-cross-talk-with-androgen-and-estrogen-receptors-and-cancer-stem-cells
#3
Matteo A Russo, Linda Ravenna, Laura Pellegrini, Elisa Petrangeli, Luisa Salvatori, Thea Magrone, Massimo Fini, Marco Tafani
Tumors are complex tissues in which transformed cells communicate with the surrounding microenvironment and evolve traits promoting their own survival and malignancy. Hypoxia and inflammation are constant characteristics of prostate tumor microenvironment influencing both cancer stem cells and differentiated tumor cells. HIFs and NF-kB are the key regulators of the transcriptional response to hypoxic and inflammatory stresses, respectively, and a crosstalk between HIFs and NF-kB pathways has been widely documented...
November 30, 2016: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/27904677/an-engineered-fgf21-variant-ly2405319-can-prevent-non-alcoholic-steatohepatitis-by-enhancing-hepatic-mitochondrial-function
#4
Ju Hee Lee, Yea Eun Kang, Joon Young Chang, Ki Cheol Park, Hyeon-Woo Kim, Jung Tae Kim, Hyun Jin Kim, Hyon-Seung Yi, Minho Shong, Hyo Kyun Chung, Koon Soon Kim
Non-alcoholic fatty liver disease (NAFLD) is a prevalent obesity-related disease that affects large populations throughout the world due to excessive calorie intake and an increasingly sedentary lifestyle. Fibroblast growth factor 21 (FGF21) has recently emerged as a promising therapeutic candidate for the treatment of obesity and diabetes. FGF21 is a starvation-induced pleiotropic hormone with various beneficial metabolic effects, and pharmacological treatment in rodents has been shown to improve insulin sensitivity and decrease simple fatty liver disease...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27901069/molecular-profiling-of-circulating-tumour-cells-identifies-notch1-as-a-principal-regulator-in-advanced-non-small-cell-lung-cancer
#5
Javier Mariscal, Marta Alonso-Nocelo, Laura Muinelo-Romay, Jorge Barbazan, Maria Vieito, Alicia Abalo, Antonio Gomez-Tato, Casares de Cal Maria de Los Angeles, Tomas Garcia-Caballero, Carmela Rodriguez, Elena Brozos, Francisco Baron, Rafael Lopez-Lopez, Miguel Abal
Knowledge on the molecular mechanisms underlying metastasis colonization in Non-Small Cell Lung Cancer (NSCLC) remains incomplete. A complete overview integrating driver mutations, primary tumour heterogeneity and overt metastasis lacks the dynamic contribution of disseminating metastatic cells due to the inaccessibility to the molecular profiling of Circulating Tumour Cells (CTCs). By combining immunoisolation and whole genome amplification, we performed a global gene expression analysis of EpCAM positive CTCs from advanced NSCLC patients...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27898411/radioprotective-effects-of-heat-killed-mycobacterium-tuberculosis-in-cultured-cells-and-radiosensitive-tissues
#6
Yuanyuan Chen, Yang Xu, Jicong Du, Jiaming Guo, Xiao Lei, Jianguo Cui, Cong Liu, Ying Cheng, Bailong Li, Fu Gao, Jintao Ju, Jianming Cai, Yanyong Yang
BACKGROUND: Exposure to ionizing radiation (IR) often causes severe damage to radiosensitive tissues, which limits the use of radiotherapy in cancer patients. Novel safe and effective radioprotectant is urgently required. It has been reported toll like receptor 2 (TLR2) plays a critical role in radioresistance. In this study, we demonstrated the protective effects of Heat-Killed Mycobacterium tuberculosis (HKMT), a potent TLR2 agonist, against IR. METHODS: Cell survival and apoptosis were determined by CCK-8 assay and Annexin V assay, respectively...
November 30, 2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27894402/hsp90-inhibitor-enhances-anti-proliferative-and-apoptotic-effects-of-celecoxib-on-ht-29-colorectal-cancer-cells-via-increasing-bax-bcl-2-ratio
#7
A Mohammadi, M M Yaghoobi, A GholamhoseynianNajar, B Kalantari-Khandani, H Sharifi, M Saravani
Due to the high prevalence and mortality rate of colorectal cancer (CRC), new treatment approaches like combination therapy seem to be necessary. The relationship between chronic inflammation and colorectal cancer development and progression has been shown to be important. Celecoxib, a selective COX-2 inhibitor, is the only non-steroidal anti-inflammatory drug (NSAID) that has been approved for cancer therapy and prevention. Because of cardiovascular side effects of COX-2 inhibitors, combination therapy may improve the therapeutic profile...
October 31, 2016: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/27890721/reactive-gamma-ketoaldehydes-as-novel-activators-of-hepatic-stellate-cells-in-vitro
#8
Lisa Longato, Fausto Andreola, Sean S Davies, Jackson L Roberts, Giuseppe Fusai, Massimo Pinzani, Kevin Moore, Krista Rombouts
AIMS: Products of lipid oxidation, such as 4-hydroxynonenal (4-HNE), are key activators of hepatic stellate cells (HSC) to a pro-fibrogenic phenotype. Isolevuglandins (IsoLG) are a family of acyclic γ-ketoaldehydes formed through oxidation of arachidonic acid or as by-products of the cyclooxygenase pathway. IsoLGs are highly reactive aldehydes which are efficient at forming protein adducts and cross-links at concentrations 100-fold lower than 4-hydroxynonenal. Since the contribution of IsoLGs to liver injury has not been studied, we synthesized 15-E2-IsoLG and used it to investigate whether IsoLG could induce activation of HSC...
November 24, 2016: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/27888584/small-molecule-inhibiting-nf-kb-ameliorates-oxidative-stress-and-suppresses-renal-inflammation-in-early-stage-of-alloxan-induced-diabetic-nephropathy-in-rat
#9
Manash P Borgohain, Mangala Lakhar, Sahabuddin Ahmed, Liakat Chowdhury, Saurabh Kumar, Rajat Pant, Abhinav Choubey
Diabetic nephropathy is one of the major microvascular complications of diabetes mellitus which ultimately gives rise to cardiovascular diseases. Oxidative stress produced by prolonged hyperglycaemia and chronic renal inflammation are the two key players in the development and progression of diabetic nephropathy. NF-kB-mediated inflammatory cascade is a strong contributor to the renovascular inflammation in diabetic nephropathy. Here, we studied the effects of piceatannol, a potent NF-kB inhibitor, on various oxidative stress markers and diabetic renal inflammatory pathway in rat induced by alloxan...
November 26, 2016: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/27888157/curcumin-use-in-pulmonary-diseases-state-of-the-art-and-future-perspectives
#10
REVIEW
Diana Lelli, Amirhossein Sahebkar, Thomas P Johnston, Claudio Pedone
Curcumin (diferuloylmethane) is a yellow pigment present in the spice turmeric (Curcuma longa). It has been used for centuries in Ayurveda (Indian traditional medicine) for the treatment of several diseases. Over the last several decades, the therapeutic properties of curcumin have slowly been elucidated. It has been shown that curcumin has pleiotropic effects, regulating transcription factors (e.g., NF-kB), cytokines (e.g., IL6, TNF-alpha), adhesion molecules (e.g., ICAM-1), and enzymes (e.g., MMPs) that play a major role in inflammation and cancerogenesis...
November 22, 2016: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/27888057/association-of-rs2294020-in-the-x-linked-ccdc22-with-susceptibility-to-autoimmune-diseases-with-focus-on-systemic-lupus-erythematosus
#11
Fabio D'Amico, Evangelia Skarmoutsou, Lauren J Lo, Mariagrazia Granata, Chiara Trovato, Giulio A Rossi, Chiara Bellocchio, Maurizio Marchini, Raffaella Scorza, Maria Clorinda Mazzarino, Alon Keinan
Autoimmune diseases often share common susceptibility genes. Most genetic variants associated with susceptibility to systemic lupus erythematosus are also associated with other autoimmune diseases. The X-linked variant rs2294020 is positioned in exon 7 of the CCDC22 gene. The encoded protein functions in the regulation of NF-kB, a master regulator in immune response. The aim of this study is to investigate whether the rs2294020 polymorphism may be a general susceptibility factor for autoimmunity. We evaluated case-control association between the occurrence of rs2294020 and different autoimmune diseases, including new data for systemic lupus erythematosus and previous genome-wide association studies (GWAS) (though most did not analyse the X chromosome) of psoriasis, celiac disease, Crohn's disease, ulcerative colitis, multiple sclerosis, vitiligo, type-1 diabetes, rheumatoid arthritis, and ankylosing spondylitis...
November 22, 2016: Immunology Letters
https://www.readbyqxmd.com/read/27887948/s-allyl-cysteine-ameliorates-cognitive-deficits-in-streptozotocin-diabetic-rats-via-suppression-of-oxidative-stress-inflammation-and-acetylcholinesterase
#12
Tourandokht Baluchnejadmojarad, Zahra Kiasalari, Siamak Afshin-Majd, Zahra Ghasemi, Mehrdad Roghani
Diabetes mellitus (DM) is associated with learning, memory, and cognitive deficits. S-allyl cysteine (SAC) is the main organosulfur bioactive molecule in aged garlic extract with anti-diabetic, antioxidant, anti-inflammatory and nootropic property. This research was conducted to evaluate the efficacy of SAC on alleviation of learning and memory deficits in streptozotocin (STZ)-diabetic rats and to explore involvement of toll-like receptor 4 (TLR4), nuclear factor (erythroid-derived 2)-like 2 (Nrf2), nuclear factor-kappa B (NF-κB), and heme oxygenase 1 (HO-1) signaling cascade...
November 22, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27882940/mdm2-prevents-spontaneous-tubular-epithelial-cell-death-and-acute-kidney-injury
#13
Dana Thomasova, Martrez Ebrahim, Kristina Fleckinger, Moying Li, Jakob Molnar, Bastian Popper, Helen Liapis, Ahmed M Kotb, Florian Siegerist, Nicole Endlich, Hans-Joachim Anders
Murine double minute-2 (MDM2) is an E3-ubiquitin ligase and the main negative regulator of tumor suppressor gene p53. MDM2 has also a non-redundant function as a modulator of NF-kB signaling. As such it promotes proliferation and inflammation. MDM2 is highly expressed in the unchallenged tubular epithelial cells and we hypothesized that MDM2 is necessary for their survival and homeostasis. MDM2 knockdown by siRNA or by genetic depletion resulted in demise of tubular cells in vitro. This phenotype was completely rescued by concomitant knockdown of p53, thus suggesting p53 dependency...
November 24, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27881407/prophylactic-and-therapeutic-treatment-with-flavonone-sakuranetin-ameliorates-lps-induced-acute-lung-injury
#14
Márcia Isabel Bittencourt-Mernak, Nathália Montouro Pinheiro, Fernanda P Roncon Santana, Marina P Guerreiro, Beatriz Mangueira Saraiva-Romanholo, Simone S Grecco, Luciana C Caperuto, Raphael J F Felizardo, Niels Olsen Saraiva Câmara, Iolanda F L Calvo Tibério, Mílton A Martins, João Henrique G Lago, Carla Máximo Prado
BACKGROUND AND PURPOSE: Sakuranetin is the main isolate flavonoid from Baccharis retusa (Asteraceae) leaves and exhibits anti-inflammatory and anti-oxidative activities. Acute respiratory distress syndrome is an acute failure of the respiratory system for which effective treatment is urgently necessary. This study investigated the preventive and therapeutic effects of sakuranetin on lipopolysaccharide (LPS)-induced acute lung injury (ALI) in mice. EXPERIMENTAL APPROACH: Animals were treated with intranasal sakuranetin 30 minutes before or 6 hours after instillation of LPS...
November 23, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/27881214/zinc-ii-ion-promotes-anti-inflammatory-effects-of-rhsod3-by-increasing-cellular-association
#15
Younghwa Kim, Yoon-Jae Jeon, Kang Ryu, Tae-Yoon Kim
Recently, we demonstrated that superoxide dismutase 3 (SOD3) is a strong biomedicine candidate. SOD3 accomplished anti-oxidant function without cell penetration and inhibited inflammatory responses via non-enzymatic functions. SOD3 has the heparin binding domain associating cell surface. Interestingly, we have found that Zn2+ promotes transduction effects of recombinant human SOD3 (rhSOD3) by increasing uptake via heparin binding domain (HBD). We showed an uptake of rhSOD3 from media to cell lysate via HBD, resulting in an accumulation of rhSOD3 into the nucleus, which is promoted by the presence of Zn2+...
November 24, 2016: BMB Reports
https://www.readbyqxmd.com/read/27880844/atorvastatin-improves-ventricular-remodeling-after-myocardial-infarction-by-interfering-with-collagen-metabolism
#16
Karla Reichert, Helison Rafael Pereira do Carmo, Anali Galluce Torina, Daniela Diógenes de Carvalho, Andrei Carvalho Sposito, Karlos Alexandre de Souza Vilarinho, Lindemberg da Mota Silveira-Filho, Pedro Paulo Martins de Oliveira, Orlando Petrucci
PURPOSE: Therapeutic strategies that modulate ventricular remodeling can be useful after acute myocardial infarction (MI). In particular, statins may exert effects on molecular pathways involved in collagen metabolism. The aim of this study was to determine whether treatment with atorvastatin for 4 weeks would lead to changes in collagen metabolism and ventricular remodeling in a rat model of MI. METHODS: Male Wistar rats were used in this study. MI was induced in rats by ligation of the left anterior descending coronary artery (LAD)...
2016: PloS One
https://www.readbyqxmd.com/read/27874279/cucurmin-anticancer-and-antitumor-perspectives-a-comprehensive-review
#17
Muhammad Imran, Farhan Saeed, Muhammad Nadeem, Muhammad Umair Arshad, Azmat Ullah, Hafiz Ansar Rasul Suleria
Cucurmin, a naturally yellow component isolated from turmeric, ability to prevent various life-style related disorders. The current review article mainly emphasizes on different anticancer perspectives of cucurmin i.e. colon, cervical, uterine, ovarian, prostate head and neck, breast, pulmonary, stomach and gastric, pancreatic, bladder oral, oesophageal and bone cancer. It holds a mixture of strong bioactive molecule known as cucurminoids that has ability to reduce cancer/tumor at initial, promotion and progression stages of tumor development...
November 22, 2016: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/27868170/protein-kinases-mechanisms-and-downstream-targets-in-inflammation-mediated-obesity-and-insulin-resistance
#18
REVIEW
Kalyana C Nandipati, Saravanan Subramanian, Devendra K Agrawal
Obesity-induced low-grade inflammation (metaflammation) impairs insulin receptor signaling. This has been implicated in the development of insulin resistance. Insulin signaling in the target tissues is mediated by stress kinases such as p38 mitogen-activated protein kinase, c-Jun NH2-terminal kinase, inhibitor of NF-kB kinase complex β (IKKβ), AMP-activated protein kinase, protein kinase C, Rho-associated coiled-coil containing protein kinase, and RNA-activated protein kinase. Most of these kinases phosphorylate several key regulators in glucose homeostasis...
November 21, 2016: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/27867076/the-dna-chaperone-hmgb1-potentiates-the-transcriptional-activity-of-rel1a-in-the-mosquito-aedes-aegypti
#19
Anderson de Mendonça Amarante, Natapong Jupatanakul, Isabel Caetano de Abreu da Silva, Vitor Coutinho Carneiro, Amanda Roberta Revoredo Vicentino, George Dimopolous, Octávio Augusto C Talyuli, Marcelo Rosado Fantappié
High Mobility Group protein 1 (HMGB1) is a non-histone, chromatin-associated nuclear protein that functions in regulating eukaryotic gene expression. We investigated the influence and mechanism of action of Aedes aegypti HMGB1 (AaHMGB1) on mosquito Rel1A-mediated transcription from target gene promoters. The DNA-binding domain (RHD) of AaRel1A was bacterially expressed and purified, and AaHMGB1 dramatically enhanced RHD binding to consensus NF-kB/Rel DNA response elements. Luciferase reporter analyses using a cecropin gene promoter showed that AaHMGB1 potentiates the transcriptional activity of AaRel1A in Aag-2 cells...
November 17, 2016: Insect Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/27865500/lipopolysaccharide-derived-from-the-digestive-tract-provokes-oxidative-stress-in-the-liver-of-dairy-cows-fed-a-high-grain-diet
#20
J A Abaker, T L Xu, D Jin, G J Chang, K Zhang, X Z Shen
The aims of this study were to measure oxidative stress parameters and to investigate the molecular mechanism triggered by grain-induced subacute ruminal acidosis in mid-lactation cows. Twelve Holstein-Friesian cows with an average weight of 455 ± 28 kg were divided into 2 groups and subjected to 2 diets over 18 wk: either a low-grain (forage-to-concentrate ratio = 6:4) or a high-grain (forage-to-concentrate ratio = 4:6) diet based on dry matter. Being fed a long-term high-grain diet resulted in a significant decrease in rumen pH and a significant increase in ruminal lipopolysaccharide (LPS) at 4 h postfeeding in the morning...
November 16, 2016: Journal of Dairy Science
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