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Heme oxygenase-1

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https://www.readbyqxmd.com/read/29052298/idiopathic-gastroparesis-is-associated-with-specific-transcriptional-changes-in-the-gastric-muscularis-externa
#1
B P Herring, A M Hoggatt, A Gupta, S Griffith, A Nakeeb, J N Choi, M T Idrees, T Nowak, D L Morris, J M Wo
BACKGROUND: The molecular changes that occur in the stomach that are associated with idiopathic gastroparesis are poorly described. The aim of this study was to use quantitative analysis of mRNA expression to identify changes in mRNAs encoding proteins required for the normal motility functions of the stomach. METHODS: Full-thickness stomach biopsy samples were collected from non-diabetic control subjects who exhibited no symptoms of gastroparesis and from patients with idiopathic gastroparesis...
October 20, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29051011/carbon-monoxide-co-inhibits-hydrogen-peroxide-h2o2-induced-oxidative-stress-and-the-activation-of-nf-%C3%AE%C2%BAb-signaling-in-lens-epithelial-cells
#2
Yang Huang, Tianju Ma, Zi Ye, Hang Li, Yang Zhao, Wenqian Chen, Yu Fu, Zheng Ye, Ang Sun, Zhaohui Li
Lens epithelial cells (LECs) play a critical role in the maintenance of clear crystalline lens. Previously, we reported that heme oxygenase-1 (HO-1) can protect LECs from hydrogen peroxide (H2O2)-induced apoptosis and oxidative stress, however, to the best of our knowledge, these protection mechanisms have not yet been explained. As carbon monoxide (CO) is an active by-product of heme degradation, we investigated its cytoprotective mechanism in both H2O2-treated human LECs (SRA 01/04) and primary rabbit LECs...
October 16, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/29050217/triterpenoids-from-aglaia-abbreviata-exert-cytotoxicity-and-multidrug-resistant-reversal-effect-in-mcf-7-adm-cells-via-reactive-oxygen-species-induction-and-p-glycoprotein-inhibition
#3
Juan Cen, Beibei Zheng, Rubing Bai, Li Zhang, Feng Zhang, Xia Zhang
Triterpenoids from the Aglaia have been shown cytotoxicity on a broad spectrum of human tumor cells. In the present study, we extracted triterpenoids AA-5 (1) and AA-6 (2) from stems of Aglaia abbreviata, and studied their cytotoxicity in multidrug resistant (MDR) MCF-7/ADM cells. After 48 h treatment, AA-5 (1) and AA-6 (2) significantly increased mitochondrial-mediated apoptosis by enhancing reactive oxygen species (ROS) with depressed mitochondrial membrane potential and caspase-9 activities. The drug efflux transporter P-glycoprotein (P-gp) and the intracellular antioxidant systems, involving Glutathione S-Transferase π, Glutathione and heme oxygenase-1, were also inhibited via the ROS-depressed Akt/NF-E2-related factor 2 pathway...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29049036/histone-deacetylase-inhibitor-bg45-mediated-ho-1-expression-induces-apoptosis-of-multiple-myeloma-cells-by-the-jak2-stat3-pathway
#4
Sishi Tang, Bingqing Cheng, Nana Zhe, Dan Ma, Jibing Xu, Xinyao Li, Yongling Guo, Weibing Wu, Jishi Wang
Multiple myeloma (MM) is a hematological malignancy that is characterized by the clonal expansion of plasma cells in the bone marrow. Histone deacetylases (HDACs) represent a new type of molecular targeted therapy for different types of cancers and promising targets for myeloma therapy. We showed that HDAC3 mRNA and protein levels of CD138 mononuclear cells from MM patients were higher than those in healthy donors. Therefore, we investigated the effects of a novel class I HDAC inhibitor BG45 on MM cells in vitro...
October 18, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/29048628/low-heme-oxygenase-1-expression-promotes-gastric-cancer-cell-apoptosis-inhibits-proliferation-and-invasion-and-correlates-with-increased-overall-survival-in-gastric-cancer-patients
#5
Quan-Guang Ren, Sheng-Li Yang, Pin-Dong Li, Jin-Rong Xiong, Xiefan Fang, Jian-Li Hu, Qiu-Shuang Wang, Ren-Wang Chen, Ye-Shan Chen, Lu Wen, Miao Peng
Heme oxygenase-1 (HO-1) plays a key role in anti-oxidation, anti-apoptosis, and anti-proliferation in various types of cancers. However, the relationship between HO-1 expression and gastric cancer development remains largely unknown. In this study, the protein expression of HO-1 in human gastric cancer was measured by immunohistochemistry on paraffin sections of 89 paired gastric carcinoma tissues and adjacent non-cancer tissues. The correlation of HO-1 expression with 5-year overall survival rate was estimated...
September 19, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29048484/adiponectin-suppression-of-late-inflammatory-mediator-hmgb1-induced-cytokine-expression-in-raw-264-macrophage-cells
#6
Mohamed Elfeky, Takeshi Yoneshiro, Yuko Okamatsu-Ogura, Kazuhiro Kimura
High mobility group protein B1 (HMGB1) is a late inflammatory mediator released from inflammatory cells when stimulated, resulting in exaggerating septic symptoms. We recently demonstrated that full-length adiponectin, a potent anti-inflammatory adipokine, inhibits lipopolysaccharide-induced HMGB1 release. However, the effects of adiponectin on HMGB1-induced exaggerating signals currently remain unknown. This study aimed to investigate the effects of adiponectin on the pro-inflammatory function of HMGB1 in RAW264 macrophage cells...
October 18, 2017: Journal of Biochemistry
https://www.readbyqxmd.com/read/29043099/lithium-ameliorates-rat-spinal-cord-injury-by-suppressing-glycogen-synthase-kinase-3%C3%AE-and-activating-heme-oxygenase-1
#7
Yonghoon Kim, Jeongtae Kim, Meejung Ahn, Taekyun Shin
Glycogen synthase kinase (GSK)-3β and related enzymes are associated with various forms of neuroinflammation, including spinal cord injury (SCI). Our aim was to evaluate whether lithium, a non-selective inhibitor of GSK-3β, ameliorated SCI progression, and also to analyze whether lithium affected the expression levels of two representative GSK-3β-associated molecules, nuclear factor erythroid 2-related factor-2 (Nrf-2) and heme oxygenase-1 (HO-1) (a target gene of Nrf-2). Intraperitoneal lithium chloride (80 mg/kg/day for 3 days) significantly improved locomotor function at 8 days post-injury (DPI); this was maintained until 14 DPI (P<0...
September 2017: Anatomy & Cell Biology
https://www.readbyqxmd.com/read/29042934/intermittent-hypoxia-simulating-obstructive-sleep-apnea-causes-pulmonary-inflammation-and-activates-the-nrf2-ho-1-pathway
#8
Yeying Wang, Yanling Chai, Xiaojie He, Li Ai, Xia Sun, Yiling Huang, Yongxia Li
Obstructive sleep apnea (OSA) is a disorder with high morbidity in adults. OSA damages multiple organs and tissues, including the cardiovascular and cerebrovascular systems, the metabolism system, the lungs, liver and heart. OSA-induced damage is earliest and greatest to the pulmonary tissue. The present study established a rat OSA model of differing severity by inducing intermittent hypoxia with different concentrations of O2 and it was determined that OSA caused a severe oxidative stress response and pulmonary inflammation in a dose-dependent manner...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29040306/micheliolide-suppresses-lps-induced-neuroinflammatory-responses
#9
Zhaomeng Sun, Guodong Li, Tanjun Tong, Jun Chen
Microglia-involved neuroinflammation is thought to promote brain damage in various neurodegenerative disorders. Thus, inhibition of microglial over-activation may have a therapeutic benefit for the treatment of neurodegenerative disorders. Micheliolide (MCL) is a sesquiterpene lactone which inhibits various inflammatory response. However, whether MCL can inhibit neuroinflammation caused by LPS-activated BV2 microglia has not yet been explored. In this study, we demonstrated that treatment of BV2 cells with MCL significantly repressed LPS-stimulated nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) expression, as well as tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6) and nitric oxide (NO) induction...
2017: PloS One
https://www.readbyqxmd.com/read/29039478/phosphorylation-of-eif2%C3%AE-suppresses-cisplatin-induced-p53-activation-and-apoptosis-by-attenuating-oxidative-stress-via-atf4-mediated-ho-1-expression-in-human-renal-proximal-tubular-cells
#10
Sung-Min Ju, Yong-Seok Jo, Yoo-Min Jeon, Hyun-Ock Pae, Dae-Gill Kang, Ho-Sub Lee, Jun-Sang Bae, Byung-Hun Jeon
Cisplatin is one of the most widely used chemotherapeutic agents for the treatment of human cancers. However, the nephrotoxicity of cisplatin limits its use as a therapeutic agent. It has been suggested that oxidative stress and p53 activation play important roles in cisplatin-induced nephrotoxicity. It has been demonstrated that the eukaryotic translation initiation factor 2α (eIF2α) may protect HK-2 human renal proximal tubular cells against cisplatin-induced apoptosis through inhibition of reactive oxygen species (ROS)‑mediated p53 activation...
October 10, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29036974/-the-impact-of-hydrogen-sulfide-on-the-heme-oxygenase-1-carbon-monoxide-system-in-coxsackie-virus-b3-induced-myocarditis-in-mice
#11
S Y Zhang, T T Wu, Y Ren, T H Xia, R Z Wu
Objective: To explore the impact of hydrogen sulfide (H(2)S) on the heme oxygenase-1/carbon monoxide pathway in Coxsackie virus B3 (CVB3)-induced murine myocarditis (VMC) model. Method: A total of 70 inbred male Balb/c mouse (4-6 weeks old) were randomized into the following four groups: Normal, VMC, PAG and NaHS (n=10 for Normal, n=20 for VMC, PAG and NaHS groups). Mice in Normal group were non-infected mice treated with intraperitoneal injection of sterile phosphate-buffered saline daily for 10 days.Mice in VMC group received intraperitoneal CVB3 injection (0...
September 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29034470/involvement-of-the-nrf2-ho-1-co-axis-and-therapeutic-intervention-with-the-co-releasing-molecule-corm-a1-in-a-murine-model-of-autoimmune-hepatitis
#12
Katia Mangano, Eugenio Cavalli, Santa Mammana, Maria Sofia Basile, Rosario Caltabiano, Antonio Pesce, Stefano Puleo, Atanas G Atanasov, Gaetano Magro, Ferdinando Nicoletti, Paolo Fagone
Concanavalin A (ConA)-induced hepatitis is an experimental model of human autoimmune hepatitis induced in rodents by i.v. injection of Con A. The disease is characterized by increase in serum levels of transaminases and massive immune infiltration of the livers. Type 1, type 2 and type 17 cytokines play a pathogenic role in the development of ConA-induced hepatitis. To understand further the immunoregulatory mechanisms operating in the development and regulation of ConA-induced hepatitis, we have evaluated the role of the anti-inflammatory pathway Nrf2/HO-1/CO (Nuclear Factor E2-related Factor 2/Heme Oxygenase-1/Carbon Monoxide) in this condition and determined whether the in vivo administration of CO via the CO-releasing molecule (CORM) CORM-A1, influences serological and histological development of Con-A-induced hepatitis...
October 15, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29034295/data-demonstrating-the-role-of-peroxiredoxin-2-as-important-anti-oxidant-system-in-lung-homeostasis
#13
Enrica Federti, Alessandro Matte, Alessandra Ghigo, Immacolata Andolfo, Cimino James, Angela Siciliano, Christophe Leboeuf, Anne Janin, Francesco Manna, Soo Young Choi, Achille Iolascon, Elisabetta Beneduce, Davide Melisi, Dae Won Kim, Sonia Levi, Lucia De Franceschi
The data presented in this article are related to the research paper entitled "peroxiredoxin-2 plays a pivotal role as multimodal cytoprotector in the early phase of pulmonary hypertension" (Federti et al., 2017) [1]. Data show that the absence of peroxiredoxin-2 (Prx2) is associated with increased lung oxidation and pulmonary vascular endothelial dysfunction. Prx2(-/)(-) mice displayed activation of the redox-sensitive transcriptional factors, NF-kB and Nrf2, and increased expression of cytoprotective system such as heme-oxygenase-1 (HO-1)...
December 2017: Data in Brief
https://www.readbyqxmd.com/read/29034293/comprehensive-data-on-a-2d-qsar-model-for-heme-oxygenase-isoform-1-inhibitors
#14
Emanuele Amata, Agostino Marrazzo, Maria Dichiara, Maria N Modica, Loredana Salerno, Orazio Prezzavento, Giovanni Nastasi, Antonio Rescifina, Giuseppe Romeo, Valeria Pittalà
The data have been obtained from the Heme Oxygenase Database (HemeOxDB) and refined according to the 2D-QSAR requirements. These data provide information about a set of more than 380 Heme Oxygenase-1 (HO-1) inhibitors. The development of the 2D-QSAR model has been undertaken with the use of CORAL software using SMILES, molecular graphs and hybrid descriptors (SMILES and graph together). The 2D-QSAR model regressions for HO-1 half maximal inhibitory concentration (IC50) expressed as pIC50 (pIC50=-LogIC50) are here included...
December 2017: Data in Brief
https://www.readbyqxmd.com/read/29033843/commentary-the-apolipoprotein-a-i-mimetic-peptide-d-4f-restrains-neointimal-formation-through-heme-oxygenase-1-up-regulation
#15
COMMENT
Giovanni Li Volti, Roberto Avola, Daniele Tibullo
No abstract text is available yet for this article.
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29033051/genetics-of-restless-legs-syndrome-an-update
#16
REVIEW
Félix J Jiménez-Jiménez, Hortensia Alonso-Navarro, Elena García-Martín, José A G Agúndez
A major role of genetic factors in the risk of developing restless legs syndrome (RLS) is supported by the high frequency of positive family history of RLS in patients affected with this disease, and the higher concordance rates in monozygotic twins compared with dizygotic ones in twin studies. In this review we have focused on those reports describing inheritance patterns of RLS, genetic anticipation, the results of studies performed on positivity of family history of RLS, twin studies, linkage studies in familial RLS, genome-wide association studies (GWAS), exome sequencing studies, and case-control association studies on candidate genes in RLS...
August 31, 2017: Sleep Medicine Reviews
https://www.readbyqxmd.com/read/29028772/heme-oxygenase-1-protects-the-liver-from-septic-injury-by-modulating-tlr4-mediated-mitochondrial-quality-control-in-mice
#17
Jin-Sook Park, Hyo-Sun Choi, So-Yeon Yim, Sun-Mee Lee
Mitochondrial dysfunction is involved in the pathogenesis of sepsis-induced multiple organ dysfunction syndrome (MODS). Mitochondrial quality control (QC) is characterized by self-recovering mitochondrial damage through mitochondrial biogenesis, mitophagy, and fission/fusion. Heme oxygenase (HO)-1 acts as a signaling molecule to modulate inflammation. The present study elucidated the cytoprotective mechanisms of HO-1 in sepsis, particularly focusing on toll-like receptor (TLR)4-mediated mitochondrial QC. Mice were subjected to sepsis by cecal ligation and puncture (CLP)...
October 12, 2017: Shock
https://www.readbyqxmd.com/read/29027214/development-of-an-alternative-zebrafish-model-for-drug-induced-intestinal-toxicity
#18
Bokyeong Ryu, C-Yoon Kim, Hanseul Oh, Ukjin Kim, Jin Kim, Cho-Rok Jung, Byoung-Hee Lee, Seungki Lee, Seo-Na Chang, Ji Min Lee, Hyung-Min Chung, Jae-Hak Park
An evaluation of intestinal toxicity is important because the mucosal lining of the gastrointestinal tract is the first barrier for oral xenobiotics. Until now, a rat model has been recommended as the standard intestinal toxicity model and the Caco-2 cell line, originated from a human colon adenocarcinoma, has been used as an alternative to this model, but there are limitations regarding cost-effectiveness and the need for mimicry of the human system. In this study, we investigated whether zebrafish could be a valid alternative to rats and Caco-2 cells as an intestinal toxicity model...
October 13, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/29018614/anti-apoptotic-properties-of-carbon-monoxide-in-porcine-oocyte-during-in-vitro-aging
#19
David Němeček, Markéta Dvořáková, Ivona Heroutová, Eva Chmelíková, Markéta Sedmíková
If fertilization of matured oocyte does not occur, unfertilized oocyte undergoes aging, resulting in a time-dependent reduction of the oocyte's quality. The aging of porcine oocytes can lead to apoptosis. Carbon monoxide (CO), a signal molecule produced by the heme oxygenase (HO), possesses cytoprotective and anti-apoptotic effects that have been described in somatic cells. However, the effects of CO in oocytes have yet to be investigated. By immunocytochemistry method we detected that both isoforms of heme oxygenase (HO-1 and HO-2) are present in the porcine oocytes...
2017: PeerJ
https://www.readbyqxmd.com/read/29017559/salidroside-protects-against-foam-cell-formation-and-apoptosis-possibly-via-the-mapk-and-akt-signaling-pathways
#20
Jing Ni, Yuanmin Li, Weiming Li, Rong Guo
BACKGROUND: Foam cell formation and apoptosis are closely associated with atherosclerosis pathogenesis. We determined the effect of salidroside on oxidized low-density lipoprotein (ox-LDL)-induced foam cell formation and apoptosis in THP1 human acute monocytic leukemia cells and investigated the associated molecular mechanisms. METHODS: THP1-derived macrophages were incubated with salidroside for 5 h and then exposed to ox-LDL for 24 h to induce foam cell formation...
October 10, 2017: Lipids in Health and Disease
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