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https://www.readbyqxmd.com/read/29778537/a-new-indanedione-derivative-alleviates-symptoms-of-diabetes-by-modulating-rage-nf-kappab-pathway-in-db-db-mice
#1
Gulnaz Khan, Meha Fatima Aftab, Bilquees Bano, Khalid Mohammed Khan, Munazza Murtaza, Sonia Siddiqui, M Hafizur Rehman, Rizwana Sanaullah Waraich
Accumulating evidence indicates that a number of tissues are damaged due to build-up of abnormal amount of Advanced Glycation End products (AGEs) in several diseases including diabetes. Currently AGE inhibitors are scarce in clinical use indicating a need for development of new anti-AGE agents. The aim of the current study is to identify the new AGE inhibitors and to decipher their mechanism of action for alleviating symptoms of diabetes in mice. Among several derivatives, one of the derivatives of indanedione, IDD-24 demonstrated highest inhibition of AGE formation and AGE mediated reactive oxygen species production in HepG-2 and mature 3T3-L1 adipocytes...
May 17, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29770329/aeg-1-contributes-to-metastasis-in-hypoxia-related-ovarian-cancer-by-modulating-the-hif-1alpha-nf-kappab-vegf-pathway
#2
Xiaoyu Yu, Yan Wang, Huilei Qiu, Hongtao Song, Di Feng, Yang Jiang, Shuzhe Deng, Hongxue Meng, Jingshu Geng
Objective: Ovarian carcinoma represents one of the deadliest malignancies among female cancer patients. Astrocyte-elevated gene-1 (AEG-1) participates in the ontogenesis of multiple human malignant diseases. Here we evaluated AEG-1, hypoxia-inducible factor- (HIF-) 1 α , nuclear factor kappa-light-chain-enhancer of activated B cells (NF- κ B), and vascular endothelial growth factor (VEGF) amounts in hypoxia induced ovarian carcinoma cells. This study aimed to explore the mechanism by which AEG-1 regulates metastasis in hypoxia induced ovarian carcinoma...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29746981/characterization-of-a-toll-like-receptor-tlr-signaling-pathway-in-biomphalaria-glabrata-and-its-potential-regulation-by-nf-kappab
#3
Judith E Humphries, Laura E Deneckere
No abstract text is available yet for this article.
May 7, 2018: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29735611/survivin-inhibitors-mitigate-chemotherapeutic-resistance-in-breast-cancer-cells-by-suppressing-genotoxic-nf-kappab-activation
#4
Wei Wang, Bo Zhang, Arul M Mani, Zhongzhi Wu, Yu Fan, Wei Li, Zhao-Hui Wu
Therapeutic resistance developed after chemotherapy and aggressive metastasis are the major causes for cancer-related death in triple negative breast cancer (TNBC) patients. Survivin is the smallest member of Inhibitor-of-Apoptosis Proteins (IAPs) family, which plays critical roles in cell division and cell survival. High expression levels of survivin have been associated with therapeutic resistance in various cancers. We recently developed a novel small molecule survivin inhibitor mimicking IAP-binding motif of second mitochondria-derived activator of caspase, which showed high potency in promoting survivin degradation...
May 7, 2018: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/29725297/1-deoxynojirimycin-dnj-ameliorates-indomethacin-induced-gastric-ulcer-in-mice-by-affecting-nf-kappab-signaling-pathway
#5
Xuehua Piao, Shuangdi Li, Xiaodan Sui, Lianyi Guo, Xingmei Liu, Hongmei Li, Leming Gao, Shusheng Cai, Yanrong Li, Tingting Wang, Baohai Liu
Gastric ulcer (GU) is a main threat to public health. 1-Deoxynojirimycin (DNJ) has antioxidant and anti-inflammatory properties and may prevent GU but related mechanism remains unclear. DNJ was extracted from the supernatants of Bacillus subtilis by using ethanol and purified by using CM-Sepharose chromatography. A GU mouse model was induced by indomethacin. The functional role of DNJ in GU mice was explored by measuring the main molecules in the NF-KappaB pathway. After the model establishment, 40 GU mice were evenly assigned into five categories: IG (received vehicle control), LG (10 μg DNJ daily), MG (20 μg DNJ daily), HG (40 μg DNJ daily), and RG (0...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29695964/root-extract-of-polygonum-cuspidatum-siebold-zucc-ameliorates-dss-induced-ulcerative-colitis-by-affecting-nf-kappab-signaling-pathway-in-a-mouse-model-via-synergistic-effects-of-polydatin-resveratrol-and-emodin
#6
Baohai Liu, Shuangdi Li, Xiaodan Sui, Lianyi Guo, Xingmei Liu, Hongmei Li, Leming Gao, Shusheng Cai, Yanrong Li, Tingting Wang, Xuehua Piao
Background: Polygonum cuspidatum Siebold & Zucc. (PCS) has antibacterial properties and may prevent Ulcerative colitis (UC) but related molecular mechanism remains unknown. NF-κB signaling pathway is associated with inflammatory responses and its inactivation may be critical for effective therapy of UC. Methods: UC mouse (C57BL/6J) model was established by using dextran sulfate sodium (DSS). The extract of PCS (PCSE) was prepared by using ethanol and its main ingredients were measured by HPLC. Thirty-two UC mice were evenly assigned into DG (received vehicle control), LG (0...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29670999/mechanisms-involved-in-normal-and-pathological-osteoclastogenesis
#7
REVIEW
Kyung-Hyun Park-Min
Osteoclasts are bone-resorbing cells that play an essential role in bone remodeling. Defects in osteoclasts result in unbalanced bone remodeling and are linked to many bone diseases including osteoporosis, rheumatoid arthritis, primary bone cancer, and skeletal metastases. Receptor activator of NF-kappaB ligand (RANKL) is a classical inducer of osteoclast formation. In the presence of macrophage-colony-stimulating factor, RANKL and co-stimulatory signals synergistically regulate osteoclastogenesis. However, recent discoveries of alternative pathways for RANKL-independent osteoclastogenesis have led to a reassessment of the traditional mechanisms that regulate osteoclast formation...
April 18, 2018: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29643149/involvement-of-prokineticin-2-expressing-neutrophil-infiltration-in-5-fluorouracil-induced-aggravation-of-breast-cancer-metastasis-to-lung
#8
Soichiro Sasaki, Tomohisa Baba, Hayato Muranaka, Yamato Tanabe, Chiaki Takahashi, Seiichi Matsugo, Naofumi Mukaida
Adjuvant chemotherapy is used for human breast cancer patients, even after curative surgery of primary tumor, in order to prevent tumor recurrence primarily as a form of metastasis. However, anti-cancer drugs can accelerate metastasis in several mouse metastasis models. Hence, we examined the effects of post-surgical administration with 5-fluorouracil (5-FU), doxorubicin, and cyclophosphamide, on lung metastasis process, which developed after the resection of the primary tumor arising from the orthotopic injection of a mouse triple-negative breast cancer cell line, 4T1...
April 11, 2018: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/29601852/gene-variants-in-the-nf-kb-pathway-nfkb1-nfkbia-nfkbiz-and-their-association-with-type-2-diabetes-and-impaired-renal-function
#9
Eliecer Coto, Carmen Díaz Corte, Salvador Tranche, Juan Gómez, Belén Alonso, Sara Iglesias, Julián R Reguero, Carlos López-Larrea, Pablo Coto-Segura
The NF-kappaB pathway might play a role in the pathogenesis of renal disease and type 2 diabetes (T2DM). Our aim was to determine whether common polymorphisms in NF-kappaB genes were associated with impaired renal function and T2DM in a cohort of healthy elderly individuals. We studied 487 individuals, all Caucasian and aged 65-85 years. A total of 104 (21%) had impaired renal function (estimated glomerular filtration rate, eGFR<60) and 146 (30%) were classified as diabetics. The genotypes of 4 common variants were determined through PCR-RFLP or fluorescent capillary electrophoresis...
March 27, 2018: Human Immunology
https://www.readbyqxmd.com/read/29593668/simulation-study-of-cdna-dataset-to-investigate-possible-association-of-differentially-expressed-genes-of-human-thp1-monocytic-cells-in-cancer-progression-affected-by-bacterial-shiga-toxins
#10
Syed A Muhammad, Jinlei Guo, Thanh M Nguyen, Xiaogang Wu, Baogang Bai, X Frank Yang, Jake Y Chen
Shiga toxin (Stxs) is a family of structurally and functionally related bacterial cytotoxins produced by Shigella dysenteriae serotype 1 and shigatoxigenic group of Escherichia coli that cause shigellosis and hemorrhagic colitis, respectively. Until recently, it has been thought that Stxs only inhibits the protein synthesis and induces expression to a limited number of genes in host cells, but recent data showed that Stxs can trigger several signaling pathways in mammalian cells and activate cell cycle and apoptosis...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29578002/inhibition-of-microrna-34a-protects-against-propofol-anesthesia-induced-neurotoxicity-and-cognitive-dysfunction-via-the-mapk-erk-signaling-pathway
#11
Guang Feng Li, Su Jing Zhuang, Guang Cai Li
AIM: To investigate the protective effect of microRNA-34a (miR-34a) on propofol-induced neurotoxicity and cognitive dysfunction. METHODS: After SH-SY5Y cells were treated with propofol to induce neurotoxicity, microRNA-34a mimics and inhibitors were transfected into the cells. The expression of apoptosis-related genes and the proteins were measured by quantitative reverse transcription polymerase chain reaction (qRT-PCR) and western blot. Sprague-Dawley (SD) rats received intraperitoneal injections of propofol, and were treated with microRNA-34a mimics and lentivirus-mediated microRNA-34a inhibitors...
March 22, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/29573741/hiv-1-tat-induced-diarrhea-is-improved-by-the-pparalpha-agonist-palmitoylethanolamide-by-suppressing-the-activation-of-enteric-glia
#12
Giovanni Sarnelli, Luisa Seguella, Marcella Pesce, Jie Lu, Stefano Gigli, Eugenia Bruzzese, Roberta Lattanzi, Alessandra D'Alessandro, Rosario Cuomo, Luca Steardo, Giuseppe Esposito
BACKGROUND: Diarrhea is a severe complication in HIV-1-infected patients with Trans-activator of transcription (HIV-1 Tat) protein being recognized as a major underlying cause. Beside its direct enterotoxic effects, Tat protein has been recently shown to affect enteric glial cell (EGC) activity. EGCs regulate intestinal inflammatory responses by secreting pro-inflammatory molecules; nonetheless, they might also release immune-regulatory factors, as palmytoilethanolamide (PEA), which exerts anti-inflammatory effects by activating PPARα receptors...
March 24, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29555826/il-12-mediated-transcriptional-regulation-of-matrix-metalloproteinases
#13
Eugenia Roupakia, Georgios Markopoulos, Evangelos Kolettas
Liu and colleagues investigated the expression of matrix matalloproteinases (MMPs) in human periodontal ligament fibroblasts (hPDLFs) regulated by interleukin-12 (IL-12), a cytokine implicated in inflammatory and immune responses. They showed that IL-12 activates canonical NF-kappaB signalling leading to increased expression of MMP-1 (Interstitial collagenase), MMP-3 (stromelysin 1) and MMP-13 (collagenase 3), and to a smaller reduction in the expression of MMP-2 (gelatinase A) and MMP-9 (gelatinase B) at both mRNA and protein levels, with corresponding changes in the secreted levels of these extracellular matrix-remodelling and immune regulatory metalloproteinases...
March 19, 2018: Bioscience Reports
https://www.readbyqxmd.com/read/29520165/silencing-mr-1-attenuates-atherosclerosis-in-apoe-mice-induced-by-angiotensin-ii-through-fak-akt-mtor-nf-kappab-signaling-pathway
#14
Yixi Chen, Jianping Cao, Qihui Zhao, Haiyong Luo, Yiguang Wang, Wenjian Dai
Myofibrillogenesis regulator-1 (MR-1) is a novel protein involved in cellular proliferation, migration, inflammatory reaction and signal transduction. However, little information is available on the relationship between MR-1 expression and the progression of atherosclerosis. Here we report atheroprotective effects of silencing MR-1 in a model of Ang II-accelerated atherosclerosis, characterized by suppression focal adhesion kinase (FAK) and nuclear factor kappaB (NF-κB) signaling pathway, and atherosclerotic lesion macrophage content...
March 2018: Korean Journal of Physiology & Pharmacology
https://www.readbyqxmd.com/read/29476964/pro-inflammatory-cytokine-and-high-doses-of-ionizing-radiation-have-similar-effects-on-the-expression-of-nf-kappab-dependent-genes
#15
Patryk Janus, Katarzyna Szołtysek, Gracjana Zając, Tomasz Stokowy, Anna Walaszczyk, Wiesława Widłak, Bartosz Wojtaś, Bartłomiej Gielniewski, Marta Iwanaszko, Rosemary Braun, Simon Cockell, Neil D Perkins, Marek Kimmel, Piotr Widlak
The NF-κB transcription factors are activated via diverse molecular mechanisms in response to various types of stimuli. A plethora of functions associated with specific sets of target genes could be regulated differentially by this factor, affecting cellular response to stress including an anticancer treatment. Here we aimed to compare subsets of NF-κB-dependent genes induced in cells stimulated with a pro-inflammatory cytokine and in cells damaged by a high dose of ionizing radiation (4 and 10 Gy). The RelA-containing NF-κB species were activated by the canonical TNFα-induced and the atypical radiation-induced pathways in human osteosarcoma cells...
June 2018: Cellular Signalling
https://www.readbyqxmd.com/read/29463593/interleukin-33-signaling-restrains-sporadic-colon-cancer-in-an-interferon-%C3%AE-dependent-manner
#16
Moritz F Eissmann, Christine Dijkstra, Merridee A Wouters, David Baloyan, Dmitri Mouradov, Paul M Nguyen, Mercedes Davalos-Salas, Tracy L Putoczki, Oliver M Sieber, John M Mariadason, Matthias Ernst, Frederick Masson
Interleukin 33 (IL33) is an inflammatory cytokine released during necrotic cell death. The epithelium and stroma of the intestine express large amounts of IL33 and its receptor St2. IL33 is therefore continuously released during homeostatic turnover of the intestinal mucosa. Although IL33 can prevent colon cancer associated with inflammatory colitis, the contribution of IL33 signaling to sporadic colon cancer remains unknown. Here, we utilized a mouse model of sporadic colon cancer to investigate the contribution of IL33 signaling to tumorigenesis in the absence of preexisting inflammation...
April 2018: Cancer Immunology Research
https://www.readbyqxmd.com/read/29437787/reg%C3%AE-controls-hippo-signaling-and-reciprocal-nf-%C3%AE%C2%BAb-yap-regulation-to-promote-colon-cancer
#17
Qingwei Wang, Xiao Gao, Tong Yu, Lei Yuan, Jie Dai, Weicang Wang, Geng Chen, Chan Jiao, Wang Zhou, Quan Huang, Long Cui, Pei Zhang, Robb E Moses, Jianhua Yang, Fengyuan Chen, Junjiang Fu, Jianru Xiao, Lei Li, Yongyan Dang, Xiaotao Li
Purpose: Colorectal cancer is one of the most commonly diagnosed cancers closely associated with inflammation and hyperactive growth. We previously demonstrated a regulatory circuit between the proteasome activator REGγ and NF-kappaB (NF-κB) during colon inflammation, known to be important in the development of colitis-associated cancer as well as sporadic colorectal cancer. How the inflammatory microenvironment affects the Hippo pathway during colorectal cancer development is largely unknown. Experimental Design: Here, we used REGγ-deficient colon cancer cell lines, REGγ knockout mice, and human colorectal cancer samples to identify the novel molecular mechanism by which REGγ functions as an oncoprotein in the development of colorectal cancer...
April 15, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29429516/lipoic-acid-inhibited-desflurane-induced-hippocampal-neuronal-apoptosis-through-caspase3-and-nf-kappab-dependent-pathway
#18
Hui Zhao, Meimei Bu, Binglu Li, Yong Zhang
Desfluraneis a widely-used general anesthetics. However, recent reports showed its significant side effect in the nervous system. Desflurane could lead to the neuronal death and affect the working memory. Unfortunately, the mechanism underlying the action of desflurane is still not clear and there is still no potent medicine to prevent the lesion in the central nervous system caused by general anesthetics. In this study, we found α-lipoic acid, an antioxidant exerting protective effect on multiple cells tissues, could resist the neurotoxicity caused by desflurane exposure...
February 2018: Tissue & Cell
https://www.readbyqxmd.com/read/29420582/ethyl-pyruvate-ameliorates-hepatic-injury-following-blunt-chest-trauma-and-hemorrhagic-shock-by-reducing-local-inflammation-nf-kappab-activation-and-hmgb1-release
#19
Nils Wagner, Scott Dieteren, Niklas Franz, Kernt Köhler, Katharina Mörs, Luka Nicin, Julia Schmidt, Mario Perl, Ingo Marzi, Borna Relja
BACKGROUND: The treatment of patients with multiple trauma including blunt chest/thoracic trauma (TxT) and hemorrhagic shock (H) is still challenging. Numerous studies show detrimental consequences of TxT and HS resulting in strong inflammatory changes, organ injury and mortality. Additionally, the reperfusion (R) phase plays a key role in triggering inflammation and worsening outcome. Ethyl pyruvate (EP), a stable lipophilic ester, has anti-inflammatory properties. Here, the influence of EP on the inflammatory reaction and liver injury in a double hit model of TxT and H/R in rats was explored...
2018: PloS One
https://www.readbyqxmd.com/read/29420126/low-dose-radiation-promotes-dendritic-cell-migration-and-il-12-production-via-the-atm-nf-kappab-pathway
#20
Nan Yu, Sinian Wang, Xiujun Song, Ling Gao, Wei Li, Huijie Yu, Chuanchuan Zhou, Zhenxia Wang, Fengsheng Li, Qisheng Jiang
For dendritic cells (DCs) to initiate an immune response, their ability to migrate and to produce interleukin-12 (IL-12) is crucial. It has been previously shown that low-dose radiation (LDR) promoted IL-12 production by DCs, resulting in increased DC activity that contributed to LDR hormesis in the immune system. However, the molecular mechanism of LDR-induced IL-12 production, as well as the effect of LDR on DC migration capacity require further elucidation. Using the JAWSII immortalized mouse dendritic cell line, we showed that in vitro X-ray irradiation (0...
April 2018: Radiation Research
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