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https://www.readbyqxmd.com/read/29776446/valproic-acid-attenuates-traumatic-spinal-cord-injury-induced-inflammation-via-stat1-and-nf-%C3%AE%C2%BAb-pathway-dependent-of-hdac3
#1
Shoubo Chen, Jingfang Ye, Xiangrong Chen, Jinnan Shi, Wenhua Wu, Wenping Lin, Weibin Lin, Yasong Li, Huangde Fu, Shun Li
BACKGROUND: Microglial polarization with M1/M2 phenotype shifts and the subsequent neuroinflammatory responses are vital contributing factors for spinal cord injury (SCI)-induced secondary injury. Nuclear factor-κB (NF-κB) is considered the central transcription factor of inflammatory mediators, which plays a crucial role in microglial activation. Lysine acetylation of STAT1 seems necessary for NF-kB pathway activity, as it is regulated by histone deacetylases (HDACs). There have been no studies that have explained if HDAC inhibition by valproic acid (VPA) affects the NF-κB pathway via acetylation of STAT1 dependent of HDAC activity in the microglia-mediated central inflammation following SCI...
May 18, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29772677/lambertianic-acid-sensitizes-non-small-cell-lung-cancers-to-trail-induced-apoptosis-via-inhibition-of-xiap-nf-%C3%AE%C2%BAb-and-activation-of-caspases-and-death-receptor-4
#2
Deok Soo Ahn, Hyo Jung Lee, Jisung Hwang, Hyukgyu Han, Bonglee Kim, BumSang Shim, Sung-Hoon Kim
Lambertianic acid (LA) is a biologically active compound from the leaves of Pinus koraiensis. In the present study, apoptotic mechanisms of LA plus TNF-related apoptosis-inducing ligand (TRAIL) were elucidated in non-small cell lung cancer cells (NSCLCs). Cytotoxicity assay, flow cytometry, immunoprecipitation, and Western blotting were performed. Here, combined treatment of LA and TRAIL increased cytotoxicity, sub-G1 population, cleaved poly (ADP-ribose) polymerase (PARP), and caspase3/8/9 in A549 and H1299 cells compared to LA or TRAIL alone...
May 16, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29772372/palmitate-induces-nitric-oxide-production-and-inflammatory-cytokine-expression-in-zebrafish
#3
Seon-Heui Cha, Yongha Hwang, Kil-Nam Kim, Hee-Sook Jun
Inflammation markers in zebrafish embryos reflect a toxic response that is common to other animal models and humans. Free fatty acids (FFAs) are known to cause damage in various tissues by inducing inflammation. In this study, we investigated whether a FFA (palmitate) induces inflammation in zebrafish embryos. Nitrous oxide (NO) production and cyclooxygenase-2 (COX-2) mRNA expression were increased in palmitate-treated zebrafish embryos in a dose-dependent manner. mRNA expression of pro-inflammatory cytokines, interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF- α), were also increased...
May 14, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29768255/asiatic-acid-aa-sensitizes-multidrug-resistant-human-lung-adenocarcinoma-a549-ddp-cells-to-cisplatin-ddp-via-downregulation-of-p-glycoprotein-mdr1-and-its-targets
#4
Qilai Cheng, Meixiang Liao, Haibo Hu, Hongliang Li, Longhuo Wu
BACKGROUND/AIMS: P-glycoprotein (P-gp, i.e., MDR1) is associated with the phenotype of multidrug resistance (MDR) and causes chemotherapy failure in the management of cancers. Searching for effective MDR modulators and combining them with anticancer drugs is a promising strategy against MDR. Asiatic acid (AA), a natural triterpene isolated from the plant Centella asiatica, may have an antitumor activity. The present study assessed the reversing effect of AA on MDR and possible molecular mechanisms of AA action in MDR1-overexpressing cisplatin (DDP)-resistant lung cancer cells, A549/DDP...
May 11, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29763384/the-effects-of-dihydroartemisinin-on-inflammatory-bowel-disease-related-bone-loss-in-a-rat-model
#5
Xingtao Ge, Zhijian Chen, Zhenjie Xu, Fang Lv, Kewei Zhang, Yu Yang
Bone loss is one of the important extra-intestinal manifestations in patients with inflammatory bowel diseases (IBDs). Compounds derived from natural products have been used to treat IBDs. However, the role of natural products on IBD-induced bone loss is not completely clarified. In the present study, we observed the effects of dihydroartemisinin (DHA), an antimalaria drug, on IBD and IBD-induced bone loss in a rat model. Chronic IBD model was established in Sprague-Dawley rats by giving them 2.5% dextran sodium sulfate in drinking water...
May 2018: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29749090/interferon-induced-protein-35-ifi35-inhibits-endothelial-cell-proliferation-migration-and-re-endothelialization-of-injured-arteries-by-inhibiting-the-nuclear-factor-kappa-b-nf-kb-pathway
#6
EDITORIAL
Corinna Schulte, Heidi Noels
In this issue of Acta Physiologica, a publication by Jian et al. expands our knowledge on the molecular mechanisms behind re-endothelialization and neointima formation after injury of the vascular endothelium1 . The rationale for performing this study was that the pro-inflammatory cytokine IFN-γ is highly expressed in injury-induced neointima and acts as a master regulator of atherosclerosis. As interferon-induced protein 35 (IFI35) is induced by IFN-γ and known to be important in inflammation-related disorders, the authors hypothesized a potential involvement of IFI35 in neointima formation...
May 10, 2018: Acta Physiologica
https://www.readbyqxmd.com/read/29730385/tnfsf14-inhibits-melanogenesis-via-nf-kb-signaling-in-melanocytes
#7
Kyu-Han Kim, Hyunjung Choi, Hyoung-June Kim, Tae Ryong Lee
Melanin synthesis in melanocytes is affected by various cytokines. Here, we reported for the first time that tumor necrosis factor superfamily member 14 (TNFSF14) inhibits melanogenesis in the primary culture of human epidermal melanocytes. TNFSF14 is known to bind to its receptors herpes virus entry mediator (HVEM) and lymphotoxin β receptor (LTβR) for signal transduction, but TNFSF14-induced hypopigmentation was independent of HVEM and LTβR in melanocytes. To explore signaling in melanocytes treated with TNFSF14, we performed RNA-seq and found that nuclear factor κ-light-chain-enhancer of activated B cells (NF-κB) signaling is activated by TNFSF14...
May 3, 2018: Cytokine
https://www.readbyqxmd.com/read/29728077/neuropilin-1-promotes-the-oncogenic-tenascin-c-integrin-%C3%AE-3-pathway-and-modulates-chemoresistance-in-breast-cancer-cells
#8
Adviti Naik, Aida Al-Yahyaee, Nada Abdullah, Juda-El Sam, Noura Al-Zeheimi, Mahmoud W Yaish, Sirin A Adham
BACKGROUND: Neuropilin-1 (NRP-1), a non-tyrosine kinase glycoprotein receptor, is associated with poor prognosis breast cancer, however transcriptomic changes triggered by NRP-1 overexpression and its association with chemoresistance in breast cancer have not yet been explored. METHODS: BT-474 NRP-1 variant cells were generated by stable overexpression of NRP-1 in the BT-474 breast cancer cell line. RNA sequencing and qRT-PCR were conducted to identify differentially expressed genes...
May 5, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29720422/gremlin-activates-the-notch-pathway-linked-to-renal-inflammation
#9
Carolina Lavoz, Jonay Poveda, Laura Márquez-Expósito, Sandra Rayego-Mateos, Raul R Rodrigues-Diez, Alberto Ortiz, Jesús Egido, Sergio Mezzano, Marta Ruiz-Ortega
Preclinical studies suggest that Gremlin participates in renal damage and could be a potential therapeutic target for human chronic kidney diseases. Inflammation is a common characteristic of progressive renal disease, and therefore novel anti-inflammatory therapeutic targets should be investigated. The Notch signaling pathway is involved in kidney development and is activated in human chronic kidney disease, but whether Gremlin regulates the Notch pathway has not been investigated. In cultured tubular cells, Gremlin up-regulated gene expression of several Notch pathway components, increased the production of the canonical ligand Jagged-1 and caused the nuclear translocation of active Notch-1 (N1ICD)...
May 2, 2018: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29717026/steroid-receptor-coactivator-1-interacts-with-nf-%C3%AE%C2%BAb-to-increase-the-vegfc-level-in-human-thyroid-cancer
#10
Bo Gao, Lingji Guo, Donglin Luo, Yan Jiang, Jianjie Zhao, Chengyi Mao, Yan Xu
Thyroid cancer is the most common endocrine cancer, and has a high incidence of lymphatic metastasis. Vascular endothelial growth factor C (VEGFC) is essential for development of lymphatic vessels and lymphatic metastases during carcinogenesis. Steroid receptor coactivator-1 (SRC-1) interacts with nuclear receptors and transcription factors to promote tumor proliferation and metastasis. However, the correlation between SRC-1 and VEGFC levels in the lymphatic metastases of thyroid cancer remains unclear. We analyzed 20 paired specimens of thyroid cancer tissue and normal thyroid tissue and found increased levels of SRC-1 and VEGFC proteins in 13/20 and 15/20 thyroid cancer specimens, respectively, when compared with those levels in specimens of normal thyroid tissue...
May 1, 2018: Bioscience Reports
https://www.readbyqxmd.com/read/29710809/anti-oxidant-and-anti-inflammatory-activity-of-ketogenic-diet-new-perspectives-for-neuroprotection-in-alzheimer-s-disease
#11
REVIEW
Alessandro Pinto, Alessio Bonucci, Elisa Maggi, Mariangela Corsi, Rita Businaro
The ketogenic diet, originally developed for the treatment of epilepsy in non-responder children, is spreading to be used in the treatment of many diseases, including Alzheimer’s disease. The main activity of the ketogenic diet has been related to improved mitochondrial function and decreased oxidative stress. B-Hydroxybutyrate, the most studied ketone body, has been shown to reduce the production of reactive oxygen species (ROS), improving mitochondrial respiration: it stimulates the cellular endogenous antioxidant system with the activation of nuclear factor erythroid-derived 2-related factor 2 (Nrf2), it modulates the ratio between the oxidized and reduced forms of nicotinamide adenine dinucleotide (NAD⁺/NADH) and it increases the efficiency of electron transport chain through the expression of uncoupling proteins...
April 28, 2018: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/29710494/novel-angiotensin-receptor-blocker-azilsartan-induces-oxidative-stress-and-nfkb-mediated-apoptosis-in-hepatocellular-carcinoma-cell-line-hepg2
#12
Elham Ahmadian, Ahmad Yari Khosroushahi, Aziz Eftekhari, Safar Farajnia, Hossein Babaei, Mohammad Ali Eghbal
Overexpression of renin angiotensin system (RAS) components and nuclear factor-kappa B (NF-kB) has a key role in various cancers. Blockade of RAS and NF-kB pathway has been suggested to reduce cancer cell proliferation. This study aimed to investigate the role of angiotensin II and NF-kB pathway in liver hepatocellular carcinoma cell line (HepG2) proliferation by using azilsartan (as a novel Ag II antagonist) and Bay 11-7082 (as NF-kB inhibitor). HepG2 cells were treated with different concentrations of azilsartan and Bay 11-7082...
March 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29710465/the-aqueous-extract-from-artemisia-capillaris-inhibits-acute-gastric-mucosal-injury-by-inhibition-of-ros-and-nf-kb
#13
Dahee Yeo, Su Jung Hwang, Woo Jean Kim, Hyun-Joo Youn, Hyo-Jong Lee
Artemisia capillaris, also called "InJin" in Korean, has been used as traditional oriental medicine in Korea because of its various pharmacological activities. These include hepatoprotective, analgesic, and antipyretic activities. The present study was designed to validate the beneficial effects of the aqueous extract of A. capillaris (AEAC) against acute gastric mucosal injury and investigate the underlying molecular mechanisms. The pharmacological efficacy of AEAC was evaluated using the gastric ulcer index and histological examination...
March 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29706061/molecular-signaling-in-tumorigenesis-of-gastric-cancer
#14
Fatemeh Molaei, Mohammad Mahdi Forghanifard, Yasaman Fahim, Mohammad Reza Abbaszadegan
Gastric cancer (GC) is regarded as the fifth most common cancer and the third cause of cancer-related deaths worldwide. Mechanism of GC pathogenesis is still unclear and relies on multiple factors, including environmental and genetic characteristics. One of the most important environmental factors of GC occurrence is infection with Helicobacter pylori that is classified as class one carcinogens. Dysregulation of several genes and pathways play an essential role during gastric carcinogenesis. Dysregulation of developmental pathways such as Wnt/β-catenin signaling, Hedgehog signaling, Hippo pathway, Notch signaling, nuclear factor-kB, and epidermal growth factor receptor have been found in GC...
July 2018: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/29705079/gold-nanoparticles-induce-serum-amyloid-a-1-toll-like-receptor-2-mediated-nf-kb-signaling-in-lung-cells-in-vitro
#15
Cheng Teng Ng, Wai Cheong George Yip, Ee Sin Chen, Wan Yan Rebecca Poh, Boon Huat Bay, Lin Yue Lanry Yung
Gold nanoparticles (AuNPs) have emerging applications in biomedicine and the industry. Exposure to AuNPs has previously been shown to alter the transcriptional activity of nuclear factor kappa B (NF-kB), which is known to mediate physiological and pathological processes. This study seeks to provide mechanistic insights into AuNP-induced NF-kB activation in Small Airway Epithelial Cells (SAECs) in vitro. Increased NF-kB transcriptional activity (quantified by the luciferase reporter assay) was observed in AuNP-treated SAECs...
April 26, 2018: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29697652/-the-distribution-of-interleukins-and-cytokines-in-the-mucous-membranes-of-the-nose-and-the-nasopharynx-in-the-patients-presenting-with-the-post-nasal-drip-syndrome
#16
G Sumeraga, M Pielmane, L Kise
The objective of the present study was to elucidate the distribution of interleukins and cytokines in the mucous membranes of the nose and the nasopharynx in the patients presenting with the post-nasal drip syndrome. The study included 20 patients with this pathological condition and 20 volunteers who comprised the control group. The samples of the mucous membranes of the nose and the nasopharynx were examined with the use of the immunohistochemical methods to identify the protein gene product 9.5, interleukin-6, interleukin-10, the tumour necrosis factor-alpha, nuclear factor-kB, and beta-defensin...
2018: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/29690521/the-gaba-a-receptor-%C3%AE-2-subunit-activates-a-neuronal-tlr4-signal-in-the-ventral-tegmental-area-that-regulates-alcohol-and-nicotine-abuse
#17
Irina Balan, Kaitlin T Warnock, Adam Puche, Marjorie C Gondre-Lewis, Harry June, Laure Aurelian
Alcoholism initiates with episodes of excessive alcohol drinking, known as binge drinking, which is one form of excessive drinking (NIAAA Newsletter, 2004) that is related to impulsivity and anxiety (Ducci et al., 2007; Edenberg et al., 2004) and is also predictive of smoking status. The predisposition of non-alcohol exposed subjects to initiate binge drinking is controlled by neuroimmune signaling that includes an innately activated neuronal Toll-like receptor 4 (TLR4) signal. This signal also regulates cognitive impulsivity, a heritable trait that defines drug abuse initiation...
April 21, 2018: Brain Sciences
https://www.readbyqxmd.com/read/29685509/rankl-mediated-osteoclastogenic-differentiation-of-macrophages-in-the-abdominal-aorta-of-angiotensin-ii-infused-apolipoprotein-e-knockout-mice
#18
Teruyoshi Tanaka, Matthew Kelly, Yuichiro Takei, Dai Yamanouchi
OBJECTIVE: Osteoclastogenic activation of macrophages (OCG) occurs in human abdominal aortic aneurysms (AAAs) and in calcium chloride-induced degenerative AAAs in mice, which have increased matrix metalloproteinase activity. As the activity of OCG in dissecting aneurysms is not clear, we tested the hypothesis that OCG contributes to angiotensin II (Ang II)-induced dissecting aneurysm (Ang II-induced AAA) in apolipoprotein E knockout mice. METHODS: AAAs were produced in apolipoprotein E knockout mice via the administration of Ang II...
April 20, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29679858/anti-inflammatory-effect-of-apo-9-fucoxanthinone-via-inhibition-of-mapks-and-nf-kb-signaling-pathway-in-lps-stimulated-raw-264-7-macrophages-and-zebrafish-model
#19
Eun-A Kim, Seo-Young Kim, Bo-Ram Ye, Junseong Kim, Seok-Chun Ko, Won Woo Lee, Kil-Nam Kim, Il-Whan Choi, Won-Kyo Jung, Soo-Jin Heo
In this study, we confirmed the anti-inflammatory effect of Apo-9-fucoxanthinone (AF) in in vitro RAW 264.7 cells and in vivo zebrafish model. In lipopolysaccharide (LPS)-stimulated zebrafish, AF significantly decreased the production of reactive oxygen species (ROS), nitric oxide (NO) and cell death. In addition, the mRNA expression of inducible nitric oxide synthase (iNOS), suppressed cyclooxygenase-2 (COX-2) and an inflammatory cytokines; IL-1β, TNF-α were shown reduction. And AF significantly inhibited NO production and expression of iNOS in LPS-stimulated RAW 264...
April 18, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29673240/the-major-role-of-nf-kb-in-the-depth-of-invasion-on-acral-melanoma-by-decreasing-cd8-t-cells
#20
Hermin Aminah Usman, Bethy S Hernowo, Maringan Diapari Lumban Tobing, Reti Hindritiani
Background: The tumor microenvironment including immune surveillance affects malignant melanoma (MM) behavior. Nuclear factor кB (NF-κB) stimulates the transcription of various genes in the nucleus and plays a role in the inflammatory process and in tumorigenesis. CD8+ T cells have cytotoxic properties important in the elimination of tumors. However, inhibitory receptors on the cell surface will bind to programmed death-ligand 1 (PD-L1), causing CD8+ T cells to lose their ability to initiate an immune response...
April 20, 2018: Journal of Pathology and Translational Medicine
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