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https://www.readbyqxmd.com/read/28643395/catalase-ameliorates-diabetes-induced-cardiac-injury-through-reduced-p65-rela-mediated-transcription-of-becn1
#1
Xu Wang, Youli Tao, Yewei Huang, Kungao Zhan, Mei Xue, Ying Wang, Dandan Ruan, Yangzhi Liang, Xiaozhong Huang, Jianjun Lin, Zhiwei Chen, Lingchun Lv, Santie Li, Gen Chen, Yang Wang, Ruijie Chen, Weitao Cong, Litai Jin
Catalase is an antioxidative enzyme that converts hydrogen peroxide (H2 O2 ) produced by superoxide dismutase from highly reactive superoxide (O2(-) ) to water and oxygen molecules. Although recent findings demonstrate that catalase, autophagy and the nuclear factor κB (NF-κB) signalling pathway are centrally involved in diabetic cardiomyopathy (DCM), the interplay between the three has not been fully characterized. Thus, the mechanism responsible for catalase-mediated protection against heart injury in diabetic mice was investigated in this study, as well as the role of NF-κB-p65 in the regulation of autophagic flux was investigated in this study...
June 23, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28637660/interleukin-33-induces-growth-regulated-oncogene-%C3%AE-expression-and-secretion-in-human-umbilical-vein-endothelial-cells
#2
Masayoshi Yamamoto, Katsuyuki Umebashi, Akinori Tokito, Junichi Imamura, Michihisa Jougasaki
Although interleukin (IL)-33, a member of the IL-1 cytokine family, plays pro-inflammatory roles in immune cells as an "alarmin", little is known regarding the biological actions of IL-33 on vascular endothelial cells. To investigate the effects of IL-33 on vascular endothelial cells, we first screened the IL-33-regulated proteins in human umbilical vein endothelial cells (HUVECs) using a dot blot array, and observed that IL-33 markedly increased growth-regulated oncogene (GRO)-α, a chemokine that is also known as CXCL1...
June 21, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28629477/identification-of-egf-nf-%C3%AE%C2%BAb-foxc1-signaling-axis-in-basal-like-breast-cancer
#3
Stacey Chung, Yanli Jin, Bingchen Han, Ying Qu, Bowen Gao, Armando E Giuliano, Xiaojiang Cui
BACKGROUND: The pathogenesis of human basal-like breast cancer (BLBC) is not well understood and patients with BLBC have a poor prognosis. Expression of the epidermal growth factor receptor (EGFR) and nuclear factor-κB (NF-κB) is well-known to be upregulated in BLBC. The forkhead box C1 (FOXC1) transcription factor, an important prognostic biomarker specific for BLBC, has been shown to be induced by EGF and is critical for EGF effects in breast cancer cells. How FOXC1 is transcriptionally activated in BLBC is not clear...
June 19, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28629334/protein-kinase-c-%C3%AE-pkc%C3%AE-modulates-cell-apoptosis-by-stimulating-nuclear-translocation-of-nf-kappa-b-p65-in-urothelial-cell-carcinoma-of-the-bladder
#4
Jin Zheng, Chuize Kong, Xiaoxi Yang, Xiaolu Cui, Xuyong Lin, Zhe Zhang
BACKGROUND: The protein kinase C (PKC) family comprises central regulators of multiple signal transduction processes and is involved in the progression of many cancers. Nuclear factor Kappa-B (NF-κB) is constitutively expressed in cancer tissues and stimulates the transcription of various tumor-related genes. The present study aims to investigate the clinical significance of PKCα and NF-κB p65 in bladder cancer tissues and the mechanism underlying PKCα induction of bladder cancer cell apoptotic resistance through stimulation of p65 nuclear translocation...
June 19, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28627626/hmgb1-regulates-p-glycoprotein-expression-in-status-epilepticus-rat-brains-via-the-rage-nf-%C3%AE%C2%BAb-signaling-pathway
#5
Yuan Xie, Nian Yu, Yan Chen, Kang Zhang, Hai-Yan Ma, Qing Di
Overexpression of P-glycoprotein (P-gp) in the brain is an important mechanism involved in drug‑resistant epilepsy (DRE). High-mobility group box 1 (HMGB1), an inflammatory cytokine, significantly increases following seizures and may be involved in upregulation of P‑gp. However, the underlying mechanisms remain elusive. The aim of the present study was to evaluate the role of HMGB1 and its downstream signaling components, receptor for advanced glycation end‑product (RAGE) and nuclear factor‑κB (NF‑κB), on P‑gp expression in rat brains during status epilepticus (SE)...
June 14, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28627596/regulation-of-type-ii-collagen-matrix-metalloproteinase-13-and-cell-proliferation-by-interleukin-1%C3%AE-is-mediated-by-curcumin-via-inhibition-of-nf-%C3%AE%C2%BAb-signaling-in-rat-chondrocytes
#6
Jian Wang, Jie Ma, Jian-Hua Gu, Fu-Yong Wang, Xiu-Shuai Shang, Hai-Rong Tao, Xiang Wang
Curcumin possesses strong anti-inflammatory, anti-rheumatoid and anti-oxidative activities, and has the potential to inhibit nuclear factor‑κB (NF‑κB) signaling. Cartilage damage in osteoarthritis (OA) is largely mediated by interleukin-1β (IL-1β) via activation of various transcription factors, including NF‑κB and activator protein‑1. The aim of the present study was to determine whether IL‑1β induces matrix metalloproteinase-13 (MMP-13) expression and inhibits type II collagen expression, as well as to examine whether cell proliferation may be inhibited by curcumin through the inhibition of NF‑κB signaling...
June 14, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28626766/involvement-of-the-toll-like-receptor-nitric-oxide-signaling-pathway-in-the-pathogenesis-of-cervical-cancer-caused-by-high-risk-human-papillomavirus-infection
#7
Jie Li, Heping Rao, Chang'e Jin, Jinrong Liu
Human papillomavirus (HPV) can activate Toll-like receptor (TLR)/nitric oxide (NO) signaling pathways; however, whether the TLR/NO pathway is involved in cervical cancer caused by high-risk HPV (HR-HPV) remains unclear. In this study, 43 HR-HPV-positive patients with cervical cancer (CC group), 39 HR-HPV-positive patients with a healthy cervix (HR-HPV group), and 33 HR-HPV-negative controls were recruited. NO concentration in cervical canal and expression of inducible NO synthase (iNOS) in cervical tissues were detected...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28626608/c-kit-modifies-the-inflammatory-status-of-smooth-muscle-cells
#8
Lei Song, Laisel Martinez, Zachary M Zigmond, Diana R Hernandez, Roberta M Lassance-Soares, Guillermo Selman, Roberto I Vazquez-Padron
BACKGROUND: c-Kit is a receptor tyrosine kinase present in multiple cell types, including vascular smooth muscle cells (SMC). However, little is known about how c-Kit influences SMC biology and vascular pathogenesis. METHODS: High-throughput microarray assays and in silico pathway analysis were used to identify differentially expressed genes between primary c-Kit deficient (Kit(W/W-v)) and control (Kit(+/+)) SMC. Quantitative real-time RT-PCR and functional assays further confirmed the differences in gene expression and pro-inflammatory pathway regulation between both SMC populations...
2017: PeerJ
https://www.readbyqxmd.com/read/28622347/rna-guided-transcriptional-activation-via-crispr-dcas9-mimics-overexpression-phenotypes-in-arabidopsis
#9
Jong-Jin Park, Emma Dempewolf, Wenzheng Zhang, Zeng-Yu Wang
Clustered regularly interspaced short palindromic repeats (CRISPR) and the CRISPR associated protein 9 (Cas9) system allows effective gene modification through RNA-guided DNA targeting. The Cas9 has undergone a series of functional alterations from the original active endonuclease to partially or completely deactivated Cas9. The catalytically deactivated Cas9 (dCas9) offers a platform to regulate transcriptional expression with the addition of activator or repressor domains. We redesigned a CRISPR/Cas9 activation system by adding the p65 transactivating subunit of NF-kappa B and a heat-shock factor 1 (HSF) activation domain to dCas9 bound with the VP64 (tetramer of VP16) activation domain for application in plants...
2017: PloS One
https://www.readbyqxmd.com/read/28618389/involvement-of-p38-mapk-and-atf-2-signaling-pathway-in-anti-inflammatory-effect-of-a-novel-compound-bis-5-methyl-2-furyl-4-nitrophenyl-methane-on-lipopolysaccharide-stimulated-macrophages
#10
Sarinporn Udompong, Sakulrat Mankhong, Jaray Jaratjaroonphong, Klaokwan Srisook
Activated macrophages produce various pro-inflammatory mediators such as inducible nitric oxide synthase (iNOS)-derived nitric oxide (NO) and cyclooxygenase (COX)-2-derived prostaglandin E2 (PGE2) during inflammatory response. However, overproduction of NO and PGE2 appears to be involved in pathogenesis of various inflammatory diseases. Therefore, inhibition of NO and PGE2 production might be useful for the treatment of inflammatory-related diseases. In this study, the bis[(5-methyl)2-furyl](4-nitrophenyl)methane or BFNM was evaluated for the anti-inflammatory activity and mechanism of action in lipopolysaccharide (LPS)-stimulated RAW 264...
June 12, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28616865/isoacteoside-a-dihydroxyphenylethyl-glycoside-exhibits-anti-inflammatory-effects-through-blocking-tlr4-dimerization
#11
Hongwei Gao, Yankun Cui, Naixin Kang, Xin Liu, Yanli Liu, Yue Zou, Ziyu Zhang, Xiaoran Li, Shilin Yang, Ji Li, Chunming Wang, Qiong-Ming Xu, Xiuping Chen
BACKGROUND AND PURPOSE: Isoacteoside (ISO) is a phenylethanoid isolated from Monochasma savatieri Franch. ex Maxim., which is an anti-inflammatory herb widely used in traditional Chinese medicine. However, the exact mechanism of the anti-inflammatory activity of ISO is not completely understood. In this study, its anti-inflammatory mechanism in mouse macrophages was elucidated. EXPERIMENTAL APPROACH: The expression of the NF-κB pathway, MAPK pathway, iNOS, TNF-α, IL-6 and IL-1β was evaluated using western blotting, qRT-PCR or ELISA...
June 14, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28615249/reduction-in-podocyte-sirt1-accelerates-kidney-injury-in-aging-mice
#12
Peter Y Chuang, Weijing Cai, Xuezhu Li, Lu Fang, Jin Xu, Rabi Yacoub, John Cijiang He, Kyung Lee
Both the incidence and prevalence of chronic kidney disease are increasing in the elderly population. Although aging is known to induce kidney injury, the underlying molecular mechanisms remain unclear. Sirtuin 1 (Sirt1), a longevity gene, is known to protect kidney cell injury from various cellular stresses. In previous studies, we showed that the podocyte-specific loss of Sirt1 aggravates diabetic kidney injury. However, the role of Sirt1 in aging-induced podocyte injury is not known. Therefore, in this study we sought to determine the effects of podocyte-specific reduction of Sirt1 in age-induced kidney injury...
June 14, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28609844/an-overview-on-immunoregulatory-and-anti-inflammatory-properties-of-chrysin-and-flavonoids-substances
#13
REVIEW
Majid Zeinali, Seyed Abdolrahim Rezaee, Hossein Hosseinzadeh
Inflammation and the pro-inflammatory cytokines are associated with numerous chronic diseases. Studies suggest that flavonoids, plant polyphenolic compound derivatives from natural origin, have a wide range of putative biological activities. Similar to other flavonoids, chrysin (CH) by its anti-oxidative and anti-inflammatory effects is a potential prophylactic agent in immunopathological and physicochemical injuries. This is an overview on putative immunomodulatory activities of flavonoids and beneficial health effects of these substances particularly, CH in the immune system...
June 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28604386/lysine-methyltransferase-smyd2-promotes-cyst-growth-in-autosomal-dominant-polycystic-kidney-disease
#14
Linda Xiaoyan Li, Lucy X Fan, Julie Xia Zhou, Jared J Grantham, James P Calvet, Julien Sage, Xiaogang Li
Autosomal dominant polycystic kidney disease (ADPKD) is driven by mutations in PKD1 and PKD2 genes. Recent work suggests that epigenetic modulation of gene expression and protein function may play a role in ADPKD pathogenesis. In this study, we identified SMYD2, a SET and MYND domain protein with lysine methyltransferase activity, as a regulator of renal cyst growth. SMYD2 was upregulated in renal epithelial cells and tissues from Pkd1-knockout mice as well as in ADPKD patients. SMYD2 deficiency delayed renal cyst growth in postnatal kidneys from Pkd1 mutant mice...
June 12, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28603111/anti-inflammatory-effects-and-mechanisms-of-hizikia-fusiformis-via-multicellular-signaling-pathways-in-lipopolysaccharide-induced-raw-264-7-cells
#15
Bhesh Raj Sharma, Chan Seon Park, Seung Jin Ma, Dong Young Rhyu
In this study, we investigated the anti-inflammatory effects and mechanisms of Hizikia fusiformis (HF) extracts in lipopolysaccharide (LPS)-induced RAW 264.7 cells. We extracted HF using solvent and sub-critical water techniques. In results, HF extracts inhibited nitric oxide (NO) production in cell-free and LPS-stimulated RAW 264.7 cells. HF210 (extract prepared with sub critical water at 210oC) was most effective. The HF210 extract dose-dependently inhibited inducible nitric oxide synthase expression (iNOS) and nuclear factor kappa (NF-B) p65 translocation from cytosol to the nucleus...
January 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28599319/regulation-of-human-glioblastoma-cell-death-by-combined-treatment-of-cannabidiol-%C3%AE-radiation-and-small-molecule-inhibitors-of-cell-signaling-pathways
#16
Vladimir N Ivanov, Jinhua Wu, Tom K Hei
Glioblastoma (GBM) is the most common primary malignant brain tumor in adults. The challenging problem in cancer treatment is to find a way to upregulate radiosensitivity of GBM while protecting neurons and neural stem/progenitor cells in the brain. The goal of the present study was upregulation of the cytotoxic effect of γ-irradiation in GBM by non-psychotropic and non-toxic cannabinoid, cannabidiol (CBD). We emphasized three main aspects of signaling mechanisms induced by CBD treatment (alone or in combination with γ-irradiation) in human GBM that govern cell death: 1) CBD significantly upregulated the active (phosphorylated) JNK1/2 and MAPK p38 levels with the subsequent downregulation of the active phospho-ERK1/2 and phospho-AKT1 levels...
May 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28598106/-the-protective-effect-of-inhibition-of-parp-1-on-inflammation-induced-by-pm2-5-in-human-bronchial
#17
Qing Huang, Jing-Jing Zhang, Zun-Zhen Zhang
OBJECTIVES: To explore whether the inhibition of poly ADP-ribose polymerase-1(PARP-1) could attenuated inflammation induced by fine particulate matter (PM2.5) in human bronchial epithelial cell line. METHODS: Cell viability was detected by Trypan Blue assay after incubated with PM2.5 for 24 h.PM2.5 doses no more than 600 μg/mL were utilized in the following experiments.In order to observe how PARP-1 would effect the expression of nuclear factor-κB p65 and inducible nitric oxide synthase (iNOS),cells were respectively treated with 600 μg/mL PM2...
November 2016: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28597116/secretory-leukocyte-protease-inhibitor-regulates-human-periodontal-ligament-cell-production-of-pro-inflammatory-cytokines
#18
Daniel Svensson, Alexandra Aidoukovitch, Emma Anders, Daniel Jönsson, Daniel Nebel, Bengt-Olof Nilsson
OBJECTIVE: Regulation of immune-like cell properties of periodontal ligament (PDL) cells is not understood. We investigate the importance of secretory leukocyte protease inhibitor (SLPI) for production of pro-inflammatory cytokines in human PDL cells. MATERIALS AND METHODS: PDL cells were isolated from teeth extracted for orthodontic reasons. Cellular location of SLPI was investigated by immunocytochemistry. Cytokine transcript and protein expression were assessed by quantitative real-time RT-PCR and Western blotting...
June 8, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/28591725/foxp3-inhibits-cancer-stem-cell-self-renewal-via-transcriptional-repression-of-cox2-in-colorectal-cancer-cells
#19
Shuo Liu, Cun Zhang, Kuo Zhang, Yuan Gao, Zhaowei Wang, Xiaoju Li, Guang Cheng, Shuning Wang, Xiaochang Xue, Weina Li, Wei Zhang, Yingqi Zhang, Xianghui Xing, Meng Li, Qiang Hao
Colon cancer stem cell (cCSC) is considered as the seed cell of colon cancer initiation and metastasis. Cyclooxygenase-2 (COX2), a downstream target of NFκB, is found to be essential in promoting cancer stem cell renewal. However, how COX2 is dysregulated in cCSCs is largely unknown. In this study, we found that the expression of transcription factor FOXP3 was much lower in the spheroids than that in the parental tumor cells. Overexpression of FOXP3 significantly decreased the numbers of spheres, reduced the side population...
May 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28586003/lymphotoxin-%C3%AE-receptor-activation-promotes-mrna-expression-of-rela-and-pro-inflammatory-cytokines-tnf%C3%AE-and-il-1%C3%AE-in-bladder-cancer-cells
#20
Mo Shen, Lianlian Zhou, Ping Zhou, Wu Zhou, Xiangyang Lin
The role of inflammation in tumorigenesis and development is currently well established. Lymphotoxin β receptor (LTβR) activation induces canonical and noncanonical nuclear factor (NF)‑κB signaling pathways, which are linked to inflammation‑induced carcinogenesis. In the present study, 5,637 bladder cancer cells were cultured and the activation of LTβR was induced by functional ligand, lymphotoxin (LT) α1β2, and silencing with shRNA. Reverse transcription‑quantitative polymerase chain reaction was utilized to detect the mRNA expression levels of NF‑κB family members RelA and RelB, cytokines including LTα, LTβ, tumor necrosis factor (TNF)α, TNF superfamily member 14, interleukin (IL)‑6 and IL‑1β, and proliferation‑related genes including CyclinD1 and Survivin...
July 2017: Molecular Medicine Reports
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