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https://www.readbyqxmd.com/read/29331583/importins-%C3%AE-and-%C3%AE-signaling-mediates-endothelial-cell-inflammation-and-barrier-disruption
#1
Antony Leonard, Arshad Rahman, Fabeha Fazal
Nucleocytoplasmic shuttling via importins is central to the function of eukaryotic cells and an integral part of the processes that lead to many human diseases. In this study, we addressed the role of α and β importins in the mechanism of endothelial cell (EC) inflammation and permeability, important pathogenic features of many inflammatory diseases such as acute lung injury and atherosclerosis. RNAi-mediated knockdown of importin α4 or α3 each inhibited NF-κB activation, proinflammatory gene (ICAM-1, VCAM-1, and IL-6) expression, and thereby endothelial adhesivity towards HL-60 cells, upon thrombin challenge...
January 10, 2018: Cellular Signalling
https://www.readbyqxmd.com/read/29328882/effects-of-salvia-miltiorrhiza-polysaccharides-on-lipopolysaccharide-induced-inflammatory-factor-release-in-raw264-7-cells
#2
Chao Han, Jinkai Yang, Pengyan Song, Xiao Wang, Wanyu Shi
This study investigated the anti-inflammatory effects and possible underlying mechanisms of Salvia miltiorrhiza polysaccharides (SMP) in lipopolysaccharide (LPS)-stimulated RAW264.7 cells. The cytotoxicity of SMP was detected by the MTT method. The morphological change of RAW264.7 was observed by Diff-Quik staining. Enzyme-linked immunosorbent assay was used to evaluate the production of cytokines in LPS-induced RAW264.7 cells. The nitric oxide (NO) kit assay detected the NO release from LPS-induced RAW264...
January 2018: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/29328450/mybl2-protects-against-h9c2-injury-induced-by-hypoxia-via-akt-and-nf%C3%A2-%C3%AE%C2%BAb-pathways
#3
Mingfeng Shao, Zexiang Ren, Rongjun Zhang
Cardiovascular diseases have become one of the major public health problems in many countries. The downregulation of MYBL2 was found in H9c2 and native cardiomyocytes cells after hypoxia treatment. The present study aimed to investigate the effects of MYB proto‑oncogene like 2 (MYBL2) on H9c2 injury induced by hypoxia. Reverse transcription‑quantitative polymerase chain reaction and western blot were performed on H9c2 cells to determine the mRNA and protein levels of MYBL2, respectively. Small interfering RNA (siRNA) was employed to downregulate MYBL2 expression in H9c2 cells to investigate changes in cell proliferation and apoptosis...
January 8, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29328438/cynandione%C3%A2-a-inhibits-lipopolysaccharide-induced-cell-adhesion-via-suppression-of-the-protein-expression-of-vcam%C3%A2-1-in-human-endothelial-cells
#4
Keun Hyung Park, Jiyoung Kim, Eunjoo H Lee, Tae Hoon Lee
Cynandione A (CA) is one of the most active compounds in the roots of Cynanchum wilfordii, the extracts of which have been used extensively in East Asia to treat various diseases including anti‑ischemic stroke. In the present study, the anti‑adherent activity of CA in lipopolysaccharide (LPS)‑stimulated human umbilical vascular endothelial cells (HUVECs) was investigated. CA markedly reduced the expression of vascular adhesion molecule‑1 (VCAM‑1) by LPS in HUVECs. The results also demonstrated that CA significantly reduced the expression of pro‑inflammatory and chemoattractant cytokines, including interleukin (IL)‑1β, IL‑6, IL‑8, monocyte chemoattractant protein‑1 and tumor necrosis factor‑α, in LPS‑activated human endothelial cells...
January 10, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29318479/zeb2-attenuates-lps-induced-inflammation-by-the-nf-%C3%AE%C2%BAb-pathway-in-hk-2-cells
#5
Qi Ding, Yang Wang, Ai-Ling Zhang, Tao Xu, Dan-Dan Zhou, Xiao-Feng Li, Jun-Fa Yang, Lei Zhang, Xiao Wang
As a transcription factor, zinc finger E-box binding homeobox 2 (ZEB2) includes multiple functional domains which interact with kinds of transcriptional co-effectors. It has been reported that ZEB2 was involved in signal transduction and multiple cellular functions. However, the functional role of ZEB2 in inflammation is still obscure. The aim of the current study is to explore the function of ZEB2 in inflammation cytokine secretion and the role of the nuclear factor-κB (NF-κB) signaling pathway in lipopolysaccharide (LPS)-induced human proximal tubule cell line (HK-2) cells...
January 9, 2018: Inflammation
https://www.readbyqxmd.com/read/29305433/pinx1-and-tert-are-required-for-tnf-%C3%AE-induced-airway-smooth-muscle-chemokine-gene-expression
#6
Karl Deacon, Alan J Knox
Airway smooth muscle (ASM) cells contribute to asthmatic lung pathology with chemokine hypersecretion and increased ASM cell mass. With little recent progress in the development of asthma therapies, a greater understanding of lung inflammation mechanisms has become a priority. Chemokine gene expression in ASM cells is dependent upon NF-κB transcription factor activity. The telomerase/shelterin complex maintains chromosomal telomere ends during cell division. Telomerase is a possible cofactor for NF-κB activity, but its role in NF-κB activity in airway tissue inflammation is not known...
January 5, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29302580/protective-effect-of-allium-tuberosum-extract-on-vascular-inflammation-in-tumor-necrosis-factor-%C3%AE-induced-human-vascular-endothelial-cells
#7
Haeng Jeon Hur, Ae Sin Lee
Background: Endothelial adhesion molecule expression induced by pro-inflammatory cytokine plays an important role in vascular endothelial cell injury, leading to vascular disease. Allium tuberosum (AT), which is used as a functional food, has a thrombolytic effect. It contains vitamin A, vitamin C, carbohydrate, calcium, iron, and phosphorus. There are many carotenes that turn into vitamin A in the body. Also, it helps blood circulation and stimulates metabolism. The purpose of the this study was to estimate the anti-inflammatory effects of the AT extract...
December 2017: Journal of Cancer Prevention
https://www.readbyqxmd.com/read/29301761/uremic-advanced-glycation-end-products-and-protein-bound-solutes-induce-endothelial-dysfunction-through-suppression-of-kr%C3%A3-ppel-like-factor-2
#8
Keith Saum, Begoña Campos, Diego Celdran-Bonafonte, Lalitha Nayak, Panjamaporn Sangwung, Charuhas Thakar, Prabir Roy-Chaudhury, A Phillip Owens
BACKGROUND: Cardiovascular disease is the leading cause of morbidity and mortality in patients with end-stage renal disease. The accumulation of uremic solutes in this patient population is associated with endothelial dysfunction and accelerated cardiovascular disease. In this study, we examined the impact of the uremic milieu on the endothelial transcription factor, Krüppel-like factor 2 (KLF2), a key regulator of endothelial function and activation. METHODS AND RESULTS: Using serum from uremic pigs with chronic renal insufficiency, our results show that KLF2 expression is suppressed by the uremic milieu and individual uremic solutes in vitro...
January 4, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29290801/rhcg-suppresses-tumorigenicity-and-metastasis-in-esophageal-squamous-cell-carcinoma-via-inhibiting-nf-%C3%AE%C2%BAb-signaling-and-mmp1-expression
#9
Xiao-Yan Ming, Xu Zhang, Ting-Ting Cao, Li-Yi Zhang, Jia-Li Qi, Ngar-Woon Kam, Xu-Ming Tang, Yu-Zhu Cui, Bao-Zhu Zhang, Yan Li, Yan-Ru Qin, Xin-Yuan Guan
Background and Aims: Esophageal squamous cell carcinoma (ESCC), a major histologic subtype of esophageal cancer, is increasing in incidence, but the genetic underpinnings of this disease remain unexplored. The aim of this study is to identify the recurrent genetic changes, elucidate their roles and discover new biomarkers for improving clinical management of ESCC. Methods: Western blotting and immunohistochemistry were performed to detect the expression level of RHCG. Bisulfite genomic sequencing (BGS) and methylation-specific PCR (MSP) were used to study the methylation status in the promoter region of RHCG...
2018: Theranostics
https://www.readbyqxmd.com/read/29288531/a-small-molecule-pin1-inhibitor-blocks-nf-%C3%AE%C2%BAb-signaling-in-prostate-cancer-cells
#10
Ke-Jia Wu, Hai-Jing Zhong, Guanjun Yang, Chun Wu, Jie-Min Huang, Guodong Li, Dik-Lung Ma, Chung-Hang Leung
Prolyl-isomerase 1 (Pin1) is a conserved enzyme that regulates cell processes such as cell cycle progression, transcriptional regulation, and apoptosis. However, overexpression of Pin1 is correlated with a higher probability of prostate tumor recurrence. We utilized molecular docking technique to identify Pin1 inhibitors from a database of natural product and natural product-like compounds. The action of the hit compounds against Pin1 activity was studied using multiple methods, including a fluorimetric enzymatic assay, co-immunoprecipitation, western blotting, cell thermal shift and other techniques...
December 30, 2017: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/29286083/kdm3a-inhibition-attenuates-high-concentration-insulin%C3%A2-induced-vascular-smooth-muscle-cell-injury-by-suppressing-mapk-nf%C3%A2-%C3%AE%C2%BAb-pathways
#11
Bo-Fang Zhang, Hong Jiang, Jing Chen, Xin Guo, Qi Hu, Shuo Yang
Previous studies have indicated that lysine (K)‑specific demethylase 3A (KDM3A) is associated with diverse diabetes‑associated cardiovascular complications in response to high glucose levels. However, the effects of KDM3A on the pathological progression of cardiovascular injuries in response to high insulin levels remain unknown. The present study aimed to explore whether KDM3A knockdown may attenuate high insulin‑induced vascular smooth muscle cell (VSMC) dysfunction, and to further investigate the underlying mechanisms...
December 29, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29285251/abnormally-glycosylated-muc1-establishes-a-positive-feedback-circuit-of-inflammatory-cytokines-mediated-by-nf-%C3%AE%C2%BAb-p65-and-ezh2-in-colitis-associated-cancer
#12
Sandra Cascio, Jacque L Faylo, Joshua C Sciurba, Jia Xue, Sarangarajan Ranganathan, Jason J Lohmueller, Pamela L Beatty, Olivera J Finn
The abnormal hypoglycosylated form of the epithelial mucin MUC1 is over-expressed in chronic inflammation and on human adenocarcinomas, suggesting its potential role in inflammation-driven tumorigenesis. The presence of human MUC1 aggravates colonic inflammation and increases tumor initiation and progression in an in vivo AOM/DSS mouse model of colitis-associated cancer (CAC). High expression levels of pro-inflammatory cytokines, including TNF-α and IL-6, were found in MUC1+ inflamed colon tissues. Exogenous TNF-α promoted the transcriptional activity of MUC1 as well as over-expression of its hypoglycosylated form in intestinal epithelial cells (IECs)...
December 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/29285221/a-c-jun-n-terminal-kinase-inhibitor-jnk-in-8-sensitizes-triple-negative-breast-cancer-cells-to-lapatinib
#13
Nancy D Ebelt, Tamer S Kaoud, Ramakrishna Edupuganti, Sabrina Van Ravenstein, Kevin N Dalby, Carla L Van Den Berg
Triple negative breast cancers (TNBC) have poor prognosis compared to other breast cancer subtypes and represent 15-20% of breast cancers diagnosed. Unique targets and new molecularly-targeted therapies are urgently needed for this subtype. Despite high expression of Epidermal Growth Factor Receptor, inhibitors such as lapatinib have not shown therapeutic efficacy in TNBC patients. Herein, we report that treatment with the covalent JNK inhibitor, JNK-IN-8, synergizes with lapatinib to cause cell death, while these compounds as single agents have little effect...
December 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/29285133/effects-of-ginkgo-biloba-leaf-extract-on-local-renin-angiotensin-system-through-tlr4-nf-%C3%AE%C2%BAb-pathway-in-cardiac-myocyte
#14
Hua Jiang, Peng Qu
The present study investigated the effects of Ginkgo biloba leaf extract (GBE50) on lipopolysaccharide (LPS) induced Toll-like receptor 4 (TLR4)/nuclear factor-κB (NF-κB) signaling pathway and its effects on angiotensinogen (ATG) and AT1a receptor, so as to explore the mechanism of GBE50 in prevention and treatment of left ventricular remodeling. In vitro cultured neonatal rat ventricular myocytes (NRVMs) were divided into 4 groups including i) control group: DMEM medium; ii) LPS group: iii) LPS + GBE50 group; iv) LPS + caffeic acid phenethyl ester (CAPE, specific inhibitor of NF-κB) group...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29284147/effects-of-dietary-supplementation-of-four-strains-of-lactic-acid-bacteria-on-growth-immune-related-response-and-genes-expression-of-the-juvenile-sea-cucumber-apostichopus-japonicus-selenka
#15
Chao Li, Yichao Ren, Senhao Jiang, Shun Zhou, Jinshan Zhao, Renjie Wang, Yongmei Li
A feeding experiment was conducted to evaluate the effects of four strains of lactic acid bacteria (LAB) [i.e. Lactobacillus plantarum LL11 (LP), Weissella confuse LS13 (WC), Lactococcus lactis LH8 (LL) and Enterococcus faecalis LC3 (ES)] isolated from marine fish on growth, immune response and expression levels of immune-related gens in body wall of juvenile sea cucumber Apostichopus japonicus. As a result, sea cucumber had better growth performance fed supplementation of LP and ES than the control group (P < ...
December 25, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29284118/danfin-functions-as-an-inhibitor-of-transcription-factor-nf-%C3%AE%C2%BAb-and-potentiates-the-antitumor-effect-of-bortezomib-in-multiple-myeloma
#16
Atsushi Uematsu, Kohki Kido, Erika Manabe, Hiroyuki Takeda, Hirotaka Takahashi, Minoru Hayashi, Yuuki Imai, Tatsuya Sawasaki
Nuclear factor-κB (NF-κB) proteins are transcription factors that play key roles in regulating most immune responses and cell death. Constitutively active NF-κB has been shown to exhibit chemoresistance by inducing anti-apoptosis in tumor cells. Multiple myeloma is known as a constitutive NF-κB activating disease, and the proteasome inhibitor bortezomib is used to treat multiple myeloma and mantle cell lymphoma. We demonstrate here that DANFIN (N,N'-bis-(2,4-dimethyl-phenyl)-ethane-1,2-diamine) functions as an inhibitor of the p65 family proteins and induces chemosensitization to bortezomib in multiple myeloma...
December 25, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29278364/tnf-%C3%AE-and-ifn-%C3%AE-together-up-regulates-par-4-expression-and-induce-apoptosis-in-human-neuroblastomas
#17
Ganesh V Shelke, Jayashree C Jagtap, Dae-Kyum Kim, Reecha D Shah, Gowry Das, Mruthyunjaya Shivayogi, Radha Pujari, Padma Shastry
The objective of this study was to examine the combined effect of Interferon-gamma (IFN-γ) and Tumor Necrosis factor-alpha (TNF-α) on cytotoxicity and expression of prostate apoptosis response-4 (Par-4) and Par-4 interacting proteins B-cell lymphoma (Bcl-2), nuclear factor kappa-light-chain-enhancer of activated B cells/p65 subunit (NF-κB/p65), Ak mouse strain thymoma (Akt) in human neuroblastoma (NB) cells. Materials and methods included human neuroblastoma cell lines-SK-N-MC, SK-N-SH, and SH-SY5Y, which were treated with IFN-γ and TNF-α individually, or in combination, and were assessed for viability by tetrazolium (MTT) assay...
December 26, 2017: Biomedicines
https://www.readbyqxmd.com/read/29276519/quaking-deficiency-amplifies-inflammation-in-experimental-endotoxemia-via-the-aryl-hydrocarbon-receptor-signal-transducer-and-activator-of-transcription-1-nf-%C3%AE%C2%BAb-pathway
#18
Li Wang, Dong-Sheng Zhai, Ban-Jun Ruan, Cheng-Ming Xu, Zi-Chen Ye, Huan-Yu Lu, Ying-Hao Jiang, Zhen-Yu Wang, An Xiang, Yuan Yang, Jian-Lin Yuan, Zi-Fan Lu
Macrophages, characterized by considerable diversity and plasticity, play a crucial role in a broad spectrum of biological processes, including inflammation. However, the molecular mechanisms underlying the diverse phenotypes of macrophages are not well defined. Here, we show that the RNA-binding protein, quaking (QKI), dynamically modulates macrophage polarization states. After lipopolysaccharide (LPS) stimulation, QKI-silenced RAW 264.7 cells displayed a pro-inflammatory M1 phenotype characterized by increased expression of iNOS, TNF-α, and IL-6 and decreased expression of anti-inflammatory factors, such as IL-10, found in inflammatory zone (Fizz1), and chitinase-like 3 (Chil3 or Ym1)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29276151/bmal1-deficiency-contributes-to-mandibular-dysplasia-by-upregulating-mmp3
#19
Jiajia Zhao, Xin Zhou, Qingming Tang, Ran Yu, Shaoling Yu, Yanlin Long, Cen Cao, Jun Han, Anbing Shi, Jeremy J Mao, Xiong Chen, Lili Chen
Skeletal mandibular hypoplasia (SMH), one of the common types of craniofacial deformities, seriously affects appearance, chewing, pronunciation, and breathing. Moreover, SMH is prone to inducing obstructive sleep apnea syndrome. We found that brain and muscle ARNT-like 1 (BMAL1), the core component of the molecular circadian oscillator, was significantly decreased in mandibles of juvenile SMH patients. Accordingly, SMH was observed in circadian-rhythm-disrupted or BMAL1-deficient mice. RNA sequencing and protein chip analyses suggested that matrix metallopeptidase 3 (MMP3) is the potential target of BMAL1...
December 14, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/29274625/inhibition-of-myocardial-hypertrophy-by-magnesium-isoglycyrrhizinate-through-the-tlr4-nf-%C3%AE%C2%BAb-signaling-pathway-in-mice
#20
REVIEW
Donglai Ma, Jianping Zhang, Yuanyuan Zhang, Xuan Zhang, Xue Han, Tao Song, Ying Zhang, Li Chu
Magnesium isoglycyrrhizinate (MgIG) is a magnesium salt of the 18-α glycyrrhizic acid stereoisomer that has exhibited hepato-protective effects and has anti-inflammatory, antioxidant, and antiviral activities. Here, we have investigated the effects and potential mechanisms of action of MgIG, with respect to myocardial fibrosis induced by isoproterenol (ISO) in mice. Mice were administered MgIG for 14days, with concurrent ISO dosing, and were sacrificed two weeks later. Lactate dehydrogenase (LDH) and creatine kinase (CK) concentrations were measured in the blood...
December 20, 2017: International Immunopharmacology
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