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https://www.readbyqxmd.com/read/28212583/role-of-topk-in-lipopolysaccharide-induced-breast-cancer-cell-migration-and-invasion
#1
Min-Ah Seol, Jung-Hwan Park, Ji Heun Jeong, Jungmook Lyu, Seung Yun Han, Sang-Muk Oh
Inflammation has been known to be linked to invasion or metastasis of breast cancer, which has poor prognosis, although the regulatory mechanism remains to be undiscovered. Here we show that T-LAK cell-originated protein kinase (TOPK) mediates pro-inflammatory endotoxin lipopolysaccharide (LPS)-induced breast cancer cell migration and invasion. The mRNA or protein level of TOPK, toll- like receptor4 (TLR4), interleukin (IL)-6, vascular endothelial growth factor (VEGF) or matrix metalloproteinase9 (MMP9) genes related to TLR4 signaling or tumor progression was induced by LPS treatment in MCF7 breast cancer cells, but the induction was abolished by stable knocking down of TOPK in MCF7 cells...
February 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28212276/preventive-effects-of-pentoxifylline-on-the-development-of-colonic-premalignant-lesions-in-obese-and-diabetic-mice
#2
Kazufumi Fukuta, Yohei Shirakami, Akinori Maruta, Koki Obara, Soichi Iritani, Nobuhiko Nakamura, Takahiro Kochi, Masaya Kubota, Hiroyasu Sakai, Takuji Tanaka, Masahito Shimizu
Obesity and its related metabolic abnormalities, including enhanced oxidative stress and chronic inflammation, are closely related to colorectal tumorigenesis. Pentoxifylline (PTX), a methylxanthine derivative, has been reported to suppress the production of tumor necrosis factor (TNF)-α and possess anti-inflammatory properties. The present study investigated the effects of PTX on the development of carcinogen-induced colorectal premalignant lesions in obese and diabetic mice. Male C57BL/KsJ-db/db mice, which are severely obese and diabetic, were administered weekly subcutaneous injections of the colonic carcinogen azoxymethane (15 mg/kg body weight) for four weeks and then received drinking water containing 125 or 500 ppm PTX for eight weeks...
February 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28211272/effects-of-dimethyloxalylglycine-embedded-poly-%C3%AE%C2%B5-caprolactone-fiber-meshes-on-wound-healing-in-diabetic-rats
#3
Qiankun Zhang, Joung-Hwan Oh, Chan Ho Park, Jeong-Hwa Baek, Hyun-Mo Ryoo, Kyung Mi Woo
Impaired wound healing in diabetic patients is associated with altered inflammatory responses, poor angiogenesis, deficient extracellular matrix (ECM) component, and peripheral neuropathy. To develop a wound dressing that is capable of the controlled delivery of bioactive small molecules that can improve diabetic wound healing, dimethyloxalylglycine (DMOG)-embedded poly(ε-caprolactone) (PCL) fiber (PCLF/DMOG) meshes are fabricated by electrospinning, and the effects of the PCLF/DMOG meshes on wound healing in diabetic rats are evaluated...
February 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28210201/therapeutic-effect-of-astragalus-polysaccharides-on-hepatocellular-carcinoma-h22-bearing-mice
#4
Xiaoyu Lai, Weibiao Xia, Jing Wei, Xinghong Ding
The purpose of this study was to investigate the effect of astragalus polysaccharides (APSs), active constituents of astragalus, in the treatment of hepatocellular carcinoma (HCC) and their potential as a promising candidate for future anticancer drug development. Astragalus polysaccharide was administered at different doses to HCC H22-bearing mice to investigate their antitumor effects. Results revealed that APS inhibited the growth of H22 cells with a tumor inhibition rate in the APS 400 mg·kg(-1) group of 59...
January 2017: Dose-response: a Publication of International Hormesis Society
https://www.readbyqxmd.com/read/28209602/a-novel-murine-model-of-esophageal-non-erosive-reflux-disease-nerd-from-inflammation-to-impairment-in-mucosal-integrity
#5
Renan O Silva, Francisco Fábio B Oliveira, Rudy D Bingana, Mailton O Arruda, Philip Woodland, Chung Lee, Miguel A Nobre E Souza, Pedro Marcos G Soares, Armenio A Santos, Daniel Sifrim, Marcellus H L P Souza
Non-erosive reflux disease (NERD) is a highly prevalent phenotype of the gastroesophageal reflux disease (GERD). In this study, we developed a novel murine model of NERD in mice with microscopic inflammation and impairment in the epithelial esophageal barrier. Female Swiss mice were subjected to the following surgical procedure: the transitional region between the forestomach and the glandular portion of the stomach was ligated, and a nontoxic ring was placed around the duodenum near the pylorus. The control group underwent sham surgery...
February 16, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28209519/effect-of-crocetin-on-vascular-smooth-muscle-cells-migration-induced-by-advanced-glycosylation-end-products
#6
REVIEW
Min Xiang, Runlin Yang, Yaqin Zhang, Pingping Wu, Lizhen Wang, Zhenyu Gao, Jianmei Wang
Crocetin is a major active constituent of Gardenia jasminoides J. Ellis, and can aid in the prevention of cardiovascular disease. The effect and possible mechanism of crocetin on the migration of vascular smooth muscle cells (VSMCs) induced by advanced glycosylation end products (AGEs) were investigated. VSMCs were pre-incubated with or without crocetin and exposed to AGEs subsequently. The invasion of the cells was investigated using a 24-well Cell Invasion Chamber. The anti-proliferative activity of crocetin was evaluated by MTT assay and VSMCs cell-cycle distribution was examined by flow cytometry...
February 13, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28209487/lipoxin-a4-suppresses-osteoclastogenesis-in-raw264-7-cells-and-prevents-ovariectomy-induced-bone-loss
#7
Changyu Liu, Hanfeng Guan, Cong Cai, Feng Li, Jun Xiao
Lipoxin A4 (LXA4; 5S, 6R, 15Strihydroxy- 7,9,13-trans-11-eicosatetraenoic acid) is a metabolic product of arachidonic acid under the action of lipoxidase. This lipid molecule plays important roles in several biological functions, especially inflammatory processes. In vivo, LXA4 regulates the inflammatory response through several signaling pathways. Its mechanism suggests that it might have an effect on osteoclastogenesis and bone loss. Using both in vitro and in vivo studies, it was here observed that LXA4 could significantly inhibit the formation and function of osteoclasts and these effects could be blocked by Boc-2, the specific inhibitor of FPR2/ALX (the receptor of LXA4)...
February 13, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28209479/subacute-immunotoxicity-of-the-marine-phycotoxin-yessotoxin-in-rats
#8
Sara F Ferreiro, Natalia Vilariño, Cristina Carrera, M Carmen Louzao, Germán Santamarina, Antonio G Cantalapiedra, J Manuel Cifuentes, Andrés C Vieira, Luis M Botana
Yessotoxin (YTX) is a marine phycotoxin produced by dinoflagellates and accumulated in filter feeding shellfish. YTX content in shellfish is regulated by many food safety authorities to protect human health, although currently no human intoxication episodes have been unequivocally related to YTX presence in food. The immune system has been proposed as one of the target organs of YTX due to alterations of lymphoid tissues and cellular and humoral components. The aim of the present study was to explore subacute immunotoxicity of YTX in rats by evaluating the hematological response, inflammatory cytokine biomarkers and the presence of YTX-induced structural alterations in the spleen and thymus...
February 13, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28209042/-determination-of-biomarkers-in-exhaled-breath-condensation-of-acute-exacerbation-of-chronic-obstructive-pulmonary-disease-and-its-clinical-implications
#9
X Q Dong, Q Shen, Y N Yao, J J Chen, G H Lu, J Y Zhou
Objective: To analyse the changes and clinical implication of biomarkers in exhaled breath condensates (EBC) of acute exacerbation of chronic obstructive pulmonary disease (AECOPD) before and after treatment. Methods: 20 patients with AECOPD were enrolled, including 15 males and 5 females. The average age was 71±10, ranging from 50-85. The concentrations of Leukotriene B4 (LTB4) and Interleukin 6 (IL-6) from EBC were assayed by ELISA kit before and after treatment. Serum inflammatory indexes, pulmonary function test and quality of life (CAT) were observed at the same time, the relationship between EBC biomarkers and clinical markers were investigated...
February 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28208647/soy-leaf-extract-exerts-atheroprotective-effects-via-modulation-of-kr%C3%A3-ppel-like-factor-2-and-adhesion-molecules
#10
Jong-Min Han, Hua Li, Moon-Hee Cho, Seung-Hwa Baek, Chul-Ho Lee, Ho-Yong Park, Tae-Sook Jeong
Soy-leaf extracts exert their cardioprotective effects by inducing endothelium-dependent vasodilation in the arteries, and they favorably modulate the serum lipid profile. In this study, we investigated the atheroprotective effects of an ethanol extract of soy leaf (ESL) in human umbilical vein endothelial cells (HUVECs) and high-cholesterol diet (HCD)-fed low-density lipoprotein receptor deficient (LDLR-/-) mice. ESL induced the expression of Krüppel-like factor 2 (KLF2), an endothelial transcription factor, and endothelial nitric oxide synthase (eNOS), and suppressed the expression of vascular cell adhesion molecule-1 (VCAM-1) and intercellular adhesion molecule-1 (ICAM-1) through moderate inflammatory signal activation, not only in tumor necrosis factor-α (TNF-α)-stimulated HUVECs but also in 7-ketocholesterol (7-KC)-stimulated HUVECs...
February 10, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28208071/anthocyanin-suppresses-cocrmo-particle-induced-osteolysis-by-inhibiting-ikk%C3%AE-%C3%AE-mediated-nf-%C3%AE%C2%BAb-signaling-in-a-mouse-calvarial-model
#11
Yamin Li, Juehong Li, Bin Li, Hui Qin, Xiaochun Peng, Yaochao Zhao, Yunsu Chen
Wear particle-induced osteolysis and bone resorption have been identified as critical factors of implant failure and total joint revision, in which nuclear factor kappa B (NF-κB) signaling and chronic inflammation have been shown to play key roles. Although anthocyanin is known to have anti-inflammatory function via blocking NF-κB pathway, it is still unclear whether anthocyanin has a protective effect on particle-induced osteolysis. In the present study, we aimed to investigate the detailed effects and the underlying mechanism of anthocyanin on CoCrMo particle-induced osteolysis in a mouse calvavial model...
February 13, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28208005/expression-of-microrna-in-host-cells-infected-with-helicobacter-pylori
#12
Jun-Won Chung, Seok Hoo Jeong, Sun Mi Lee, Jhang Ho Pak, Gin Hyug Lee, Jin-Yong Jeong, Jin-Ho Kim
Background/Aims: MicroRNAs (miRNAs) regulate gene expression. We assess miRNA regulation by Helicobacter pylori infection and elucidate their role in H. pylori-infected gastric epithelial cells. Methods: The relationship between miRNA expression and DNA methylation was examined. Cells were treated with the nuclear factor-kappaB (NF-κB) inhibitor Bay 11-7082 to determine the relationship between miRNA expression and NF-κB signal transduction. Results: In the negative control cells infected with H...
February 17, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28207826/changes-of-plasma-cytokines-and-chemokines-expression-level-in-nasopharyngeal-carcinoma-patients-after-treatment-with-definitive-intensity-modulated-radiotherapy-imrt
#13
Ya-Bin Jin, Guo-Yi Zhang, Kai-Rong Lin, Xiang-Ping Chen, Jin-Huan Cui, Yue-Jian Wang, Wei Luo
BACKGROUND: Potential clinical application values of certain cytokines and chemokines that participate in the process of tumor growth, invasion, and metastasis have been reported. However, there still lack of biomarkers for a great many of malignancy. This study identified cytokines or chemokines involved in the occurrence and development of nasopharyngeal carcinoma (NPC), which might be a biomarker for noninvasive early diagnosis. METHODS: The plasma levels of 19 cytokines and chemokines were detected by the luminex liquid array-based multiplexed immunoassays in 39 NPC patients before and after treatment by definitive intensity-modulated radiotherapy (IMRT)...
2017: PloS One
https://www.readbyqxmd.com/read/28207795/organ-dysfunction-during-continuous-veno-venous-high-cut-off-hemodialysis-in-patients-with-septic-acute-kidney-injury-a-prospective-observational-study
#14
Gianluca Villa, Cosimo Chelazzi, Elena Morettini, Lucia Zamidei, Serafina Valente, A Lucia Caldini, Giovanni Zagli, A Raffaele De Gaudio, Stefano Romagnoli
BACKGROUND: Continuous veno-venous hemodialysis with high cut-off membranes (HCO-CVVHD) removes inflammatory mediators involved in organ dysfunction during sepsis. The aim of the present study was to assess the variations in SOFA score and identify early predictors of short-term mortality in a cohort of patients with septic shock, treated with HCO-CVVHD for acute kidney injury (AKI). METHODS: An observational prospective multicenter cohort study was conducted in four mixed medical-surgical ICUs...
2017: PloS One
https://www.readbyqxmd.com/read/28207754/ascofuranone-inhibits-lipopolysaccharide-induced-inflammatory-response-via-nf-kappab-and-ap-1-p-erk-tnf-%C3%AE-il-6-and-il-1%C3%AE-in-raw-264-7-macrophages
#15
Jun-Young Park, Tae-Wook Chung, Yun-Jeong Jeong, Choong-Hwan Kwak, Sun-Hyung Ha, Kyung-Min Kwon, Fukushi Abekura, Seung-Hak Cho, Young-Choon Lee, Ki-Tae Ha, Junji Magae, Young-Chae Chang, Cheorl-Ho Kim
The natural fungal compound ascofuranone (5-chloro-3-[(2E,6E)-7-[(2S)-5,5-dimethyl-4-oxo-tetrahydrofuran-2-yl]-3-methyl-octa-2,6-dienyl]-2,4-dihydroxy-6-methyl-benzaldehyde, MW 420.93) (AF) isolated from Ascochyta viciae has been known to promote cell cycle arrest and inhibit invasion of tumor cells. We have previously studied a structurally similar compound ascochlorin (ASC; MW 404.93) with regard to its anti-inflammatory activity in LPS- stimulated RAW 264.7 macrophages. In order to examine the relationship between the anti-inflammatory activities and the molecular differences between AF and ASC, the activity of AF is herein studied, because ASC has a unique trimethyl oxocyclohexyl structure, while AF has a unique dimethyl-oxo-tetrahydrofuran structure...
2017: PloS One
https://www.readbyqxmd.com/read/28206713/effect-of-heme-oxygenase-1-transduced-bone-marrow-mesenchymal-stem-cells-on-damaged-intestinal-epithelial-cells-in-vitro
#16
Yi Cao, Ben-Juan Wu, Wei-Ping Zheng, Ming-Li Yin, Tao Liu, Hong-Li Song
In this study we explored the effects of mesenchymal stem cells (MSCs) from bone marrow overexpressing heme oxygenase-1 (HO-1) on the damaged human intestinal epithelial barrier in vitro. Rat MSCs were isolated from bone marrow and transduced with rat HO-1 recombinant adenovirus (HO-MSCs) for stable expression of HO-1. Colorectal adenocarinoma 2 (Caco2) cells were treated with tumor necrosis factor-α (TNF-α) to establish a damaged colon epithelial model. Damaged Caco2 were cocultured with MSCs, Ad-MSCs, Ad-HO + MSCs or HO-MSCs mRNA and protein expression of Zona occludens-1 (ZO-1) and human HO-1, and the release of cytokines were measured...
February 16, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28204966/inhibition-of-the-renin-angiotensin-system-post-myocardial-infarction-prevents-inflammation-associated-acute-cardiac-rupture
#17
Xiao-Ming Gao, Alan Tsai, Annas Al-Sharea, Yidan Su, Shirley Moore, Li-Ping Han, Helen Kiriazis, Anthony M Dart, Andrew J Murphy, Xiao-Jun Du
PURPOSE: Inhibition of the renin-angiotensin system (RAS) is beneficial in patient management after myocardial infarction (MI). However, whether RAS inhibition also provides cardiac protection in the acute phase of MI is unclear. METHODS: Male 129sv mice underwent coronary artery occlusion to induce MI, followed by treatment with losartan (L, 20 and 60 mg/kg), perindopril (P, 2 and 6 mg/kg), amlodipine (20 mg/kg as a BP-lowering agent) or vehicle as control. Drug effects on hemodynamics were examined...
February 15, 2017: Cardiovascular Drugs and Therapy
https://www.readbyqxmd.com/read/28203105/association-of-fatigue-and-depression-with-circulating-levels-of-proinflammatory-cytokines-and-epidermal-growth-factor-receptor-ligands-a-correlative-study-of-a-placebo-controlled-fatigue-trial
#18
Tyvin Rich, Fengmin Zhao, Ricardo A Cruciani, David Cella, Judith Manola, Michael J Fisch
CONTEXT: The biology of fatigue and depression in cancer patients is poorly understood. Hypotheses regarding cytokines and growth factors related to sickness behavior and disruption of circadian signaling have been proposed. OBJECTIVES: We prospectively examined proinflammatory cytokines (e.g., sickness behavior model) and epidermal growth factor receptor (EGFR) ligands (e.g., circadian disruption model) in the serum of cancer patients enrolled in a clinical trial testing levocarnitine for fatigue...
2017: Cancer Management and Research
https://www.readbyqxmd.com/read/28202857/cytokine-profiles-in-pericardial-effusion-in-a-down-syndrome-infant-with-transient-abnormal-myelopoiesis
#19
Yoshihiko Shitara, Naoto Takahashi, Yoshinori Aoki, Motohiro Kato, Riki Nishimura, Shinya Tsuchida, Akira Oka
Infants with Down Syndrome (DS) are at risk of developing a transient abnormal myelopoiesis (TAM). TAM is characterised by increased circulating blast cells but usually self-limiting. DS patients with TAM sometimes show fetal hydrops and effusion in body cavities, but the mechanism remains unclear. We report here a case of infant with DS who had pericardial effusion, TAM, and eosinophilia. In her pericardial effusion, white blood cell count was 6.0 × 10(3)/µL, 41% of which were eosinophils. After administration of prednisolone, pericardial effusion gradually decreased, and TAM and eosinophilia improved...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28202616/dna-repair-interacts-with-autophagy-to-regulate-inflammatory-responses-to-pulmonary-hyperoxia
#20
Yan Ye, Ping Lin, Weidong Zhang, Shirui Tan, Xikun Zhou, Rongpeng Li, Qinqin Pu, Jonathan L Koff, Archana Dhasarathy, Feng Ma, Xin Deng, Jianxin Jiang, Min Wu
Oxygen is supplied as a supportive treatment for patients suffering from acute respiratory distress syndrome. Unfortunately, high oxygen concentration increases reactive oxygen species generation, which causes DNA damage and ultimately cell death in the lung. Although 8-oxoguanine-DNA glycosylase (OGG-1) is involved in repairing hyperoxia-mediated DNA damage, the underlying molecular mechanism remains elusive. In this study, we report that ogg-1-deficient mice exhibited a significant increase of proinflammatory cytokines (TNF-α, IL-6, and IFN-γ) in the lung after being exposed to 95% oxygen...
February 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
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