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https://www.readbyqxmd.com/read/29773173/gene-expression-in-adverse-reaction-to-metal-debris-around-metal-on-metal-arthroplasty-an-rna-seq-based-study
#1
Antti Pemmari, Tiina Leppänen, Erja-Leena Paukkeri, Antti Eskelinen, Teemu Moilanen, Eeva Moilanen
Joint replacement surgery is a standard treatment of advanced osteoarthritis (OA). Since 2000, cobalt-chromium (CoCr) metal-on-metal (MoM) implants were widely used in hip arthroplasties. Some patients developed "adverse reaction to metal debris" (ARMD) around the prosthesis, resulting in a need for revision surgery. In the present study, we addressed the pathogenesis of ARMD by genome-wide expression analysis. Pseudosynovial ARMD tissue was obtained from revision surgery of Articular Surface Replacement (ASR, DePuy, Warsaw, IN, USA) hip arthroplasties...
July 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29766003/the-status-of-nitric-oxide-and-its-backup-heme-oxygenase-1-in-thromboangiitis-obliterans
#2
Ali Aliee, Farnaz Zahedi Avval, Hossein Taheri, Saeedeh Mehraban Moghadam, Mohammad Soukhtanloo, Daryoush Hamidi Alamdari, Bahare Fazeli
Background: Until recently, a gene polymorphism in the promoter region of endothelial nitric oxide synthase has been suggested as a risk factor for thromboangiitis obliterans (TAO) development. The aim of this study was to compare the metabolites of nitric oxide (NO) and its backup, heme-oxygenase-1 (HMOX1), between TAO patients and those of a smoking control group matched by race, age, sex, and smoking habits. Methods: Twenty-four male Caucasian TAO patients and 20 male Caucasian controls enrolled in the study...
April 2018: Reports of Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/29761622/host-heme-oxygenase-1-friend-or-foe-in-tackling-pathogens
#3
REVIEW
Nisha Singh, Zeeshan Ahmad, Navin Baid, Ashwani Kumar
Infectious diseases are a major challenge in management of human health worldwide. Recent literature suggests that host immune system could be modulated to ameliorate the pathogenesis of infectious disease. Heme oxygenase (HMOX1) is a key regulator of cellular signaling and it could be modulated using pharmacological reagents. HMOX1 is a cytoprotective enzyme that degrades heme to generate carbon monoxide (CO), biliverdin, and molecular iron. CO and biliverdin (or bilirubin derived from it) can restrict the growth of a few pathogens...
May 14, 2018: IUBMB Life
https://www.readbyqxmd.com/read/29755668/mutant-p53-tunes-the-nrf2-dependent-antioxidant-response-to-support-survival-of-cancer-cells
#4
Kamil Lisek, Elena Campaner, Yari Ciani, Dawid Walerych, Giannino Del Sal
NRF2 (NFE2L2) is one of the main regulators of the antioxidant response of the cell. Here we show that in cancer cells NRF2 targets are selectively upregulated or repressed through a mutant p53-dependent mechanism. Mechanistically, mutant p53 interacts with NRF2, increases its nuclear presence and resides with NRF2 on selected ARE containing gene promoters activating the transcription of a specific set of genes while leading to the transcriptional repression of others. We show that thioredoxin ( TXN) is a mutant p53-activated NRF2 target with pro-survival and pro-migratory functions in breast cancer cells under oxidative stress, while heme oxygenase 1 ( HMOX1) is a mutant p53-repressed target displaying opposite effects...
April 17, 2018: Oncotarget
https://www.readbyqxmd.com/read/29751106/curcumin-exerts-its-antitumor-effects-in-a-context-dependent-fashion
#5
Dominique Kreutz, Chomdao Sinthuvanich, Andrea Bileck, Lukas Janker, Besnik Muqaku, Astrid Slany, Christopher Gerner
Proteome profiling profoundly contributes to the understanding of cell response mechanisms to drug actions. Such knowledge may become a key to improve personalized medicine. In the present study, the effects of the natural remedy curcumin on breast cancer model systems were investigated. MCF-7, ZR-75-1 and TGF-β1 pretreated fibroblasts, mimicking cancer-associated fibroblasts (CAFs), were treated independently as well as in tumor cell/CAF co-cultures. Remarkably, co-culturing with CAF-like cells (CLCs) induced different proteome alterations in MCF-7 and ZR-75-1 cells, respectively...
May 8, 2018: Journal of Proteomics
https://www.readbyqxmd.com/read/29743974/simvastatin-treatment-upregulates-ho-1-in-patients-with-abdominal-aortic-aneurysm-but-independently-of-nrf2
#6
Aleksandra Piechota-Polanczyk, Aleksandra Kopacz, Damian Kloska, Branislav Zagrapan, Christoph Neumayer, Anna Grochot-Przeczek, Ihor Huk, Christine Brostjan, Jozef Dulak, Alicja Jozkowicz
Heme oxygenase-1 (HO-1), encoded by HMOX1 gene and regulated by Nrf2 transcription factor, is a cytoprotective enzyme. Its deficiency may exacerbate abdominal aortic aneurysm (AAA) development, which is also often associated with hyperlipidemia. Beneficial effects of statins, the broadly used antilipidemic drugs, were attributed to modulation of Nrf2/HO-1 axis. However, the effect of statins on Nrf2/HO-1 pathway in patients with AAA has not been studied yet. We analyzed AAA tissue from patients treated with simvastatin ( N  = 28) or without statins ( N  = 14)...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29743446/photodynamic-therapy-using-talaporfin-sodium-induces-heme-oxygenase-1-expression-in-rat-malignant-meningioma-kmy-j-cells
#7
Tsutomu Takahashi, Saki Suzuki, Suzuka Misawa, Jiro Akimoto, Yo Shinoda, Yasuyuki Fujiwara
Photodynamic therapy (PDT) using talaporfin sodium (TS) is tumor cell-selective less invasive therapy for the treatment of malignant glioma. We previously demonstrated that PDT using TS (TS-PDT) treatment exhibits anti-tumor activity against not only glioblastoma cells but also malignant meningioma cells. In general, various stress response proteins have been reported to affect the sensitivity determination for anticancer agents against tumor cells. However, the relationship between the therapeutic effect of TS-PDT and stress response systems in tumor cells is not adequately investigated...
2018: Journal of Toxicological Sciences
https://www.readbyqxmd.com/read/29738547/plastid-genome-analysis-of-three-nemaliophycidae-red-algal-species-suggests-environmental-adaptation-for-iron-limited-habitats
#8
Chung Hyun Cho, Ji Won Choi, Daryl W Lam, Kyeong Mi Kim, Hwan Su Yoon
The red algal subclass Nemaliophycidae includes both marine and freshwater taxa that contribute to more than half of the freshwater species in Rhodophyta. Given that these taxa inhabit diverse habitats, the Nemaliophycidae is a suitable model for studying environmental adaptation. For this purpose, we characterized plastid genomes of two freshwater species, Kumanoa americana (Batrachospermales) and Thorea hispida (Thoreales), and one marine species Palmaria palmata (Palmariales). Comparative genome analysis identified seven genes (ycf34, ycf35, ycf37, ycf46, ycf91, grx, and pbsA) that were different among marine and freshwater species...
2018: PloS One
https://www.readbyqxmd.com/read/29737854/halobenzoquinone-induced-alteration-of-gene-expression-associated-with-oxidative-stress-signaling-pathways
#9
Jinhua Li, Birget Moe, Yanming Liu, Xing-Fang Li
Halobenzoquinones (HBQs) are emerging disinfection byproducts (DBPs) that effectively induce reactive oxygen species and oxidative damage in vitro. However, impacts of HBQs on oxidative stress related gene expression have not been investigated. In this study, we examined alteration in the expression of 44 genes, related to oxidative stress-induced signaling pathways, in human uroepithelial cells (SV-HUC-1) upon exposure to six HBQs. The results show structure-dependent effects of HBQs on the studied gene expression...
May 8, 2018: Environmental Science & Technology
https://www.readbyqxmd.com/read/29716632/multi-cellular-human-bronchial-models-exposed-to-diesel-exhaust-particles-assessment-of-inflammation-oxidative-stress-and-macrophage-polarization
#10
Jie Ji, Swapna Upadhyay, Xiaomiao Xiong, Maria Malmlöf, Thomas Sandström, Per Gerde, Lena Palmberg
BACKGROUND: Diesel exhaust particles (DEP) are a major component of outdoor air pollution. DEP mediated pulmonary effects are plausibly linked to inflammatory and oxidative stress response in which macrophages (MQ), epithelial cells and their cell-cell interaction plays a crucial role. Therefore, in this study we aimed at studying the cellular crosstalk between airway epithelial cells with MQ and MQ polarization following exposure to aerosolized DEP by assessing inflammation, oxidative stress, and MQ polarization response markers...
May 2, 2018: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/29694447/pharmacological-versus-genetic-inhibition-of-heme-oxygenase-1-the-comparison-of-metalloporphyrins-shrna-and-crispr-cas9-system
#11
Olga Mucha, Paulina Podkalicka, Maria Czarnek, Anna Biela, Mateusz Mieczkowski, Neli Kachamakova-Trojanowska, Jacek Stepniewski, Alicja Jozkowicz, Jozef Dulak, Agnieszka Loboda
Inhibition of heme oxygenase-1 (HO-1, encoded by HMOX1), a cytoprotective, anti-apoptotic and anti-inflammatory enzyme, may serve as a valuable therapy in various pathophysiological processes, including tumorigenesis. We compared the effect of chemical inhibitors - metalloporphyrins, with genetic tools - shRNA and CRISPR/Cas9 systems, to knock-down (KD)/knock-out (KO) HO-1 expression/activity. 293T cells were incubated with metalloporphyrins, tin and zinc protoporphyrins (SnPPIX and ZnPPIX, respectively) or were either transduced with lentiviral vectors encoding different shRNA sequences against HO-1 or were modified by CRISPR/Cas9 system targeting HMOX1...
April 25, 2018: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/29691233/evaluation-of-biodistribution-of-sulforaphane-after-administration-of-oral-broccoli-sprout-extract-in-melanoma-patients-with-multiple-atypical-nevi
#12
Shawn Tahata, Shivendra V Singh, Yan Lin, Eun-Ryeong Hahm, Jan H Beumer, Susan M Christner, Uma N Rao, Cindy Sander, Ahmad A Tarhini, Hussein Tawbi, Laura K Ferris, Melissa Wilson, Amy Rose, Catherine M Dietz, Ellen K Hughes, Jed W Fahey, Sancy A Leachman, Pamela B Cassidy, Lisa H Butterfield, Hassane M Zarour, John M Kirkwood
Broccoli sprout extract containing sulforaphane (BSE-SFN) has been shown to inhibit ultraviolet radiation-induced damage and tumor progression in skin. This study evaluated the toxicity and potential effects of oral BSE-SFN at three dosages. Seventeen patients who each had at least 2 atypical nevi and a prior history of melanoma were randomly allocated to 50, 100, or 200 µmol oral BSE-SFN daily for 28 days. Atypical nevi were photographed on days 1 and 28, and plasma and nevus samples were taken on days 1, 2, and 28...
April 24, 2018: Cancer Prevention Research
https://www.readbyqxmd.com/read/29675777/inhibition-of-p16-ink4a-to-rejuvenate-aging-human-cardiac-progenitor-cells-via-the-upregulation-of-anti-oxidant-and-nf%C3%AE%C2%BAb-signal-pathways
#13
Roshni V Khatiwala, Shuning Zhang, Xiuchun Li, Neil Devejian, Edward Bennett, Chuanxi Cai
Autologous human cardiac stem/progenitor cell (hCPC) therapy is a promising treatment that has come into use in recent years for patients with cardiomyopathy. Though innovative in theory, a major hindrance to the practical application of this treatment is that the hCPCs of elderly patients, who are most susceptible to myocardial disease, are senescent and prone to cell death. Rejuvenating hCPCs from elderly patients may help overcome this obstacle, and can be accomplished by reversing entry into the cellular stage of senescence...
April 19, 2018: Stem Cell Reviews
https://www.readbyqxmd.com/read/29669436/heme-oxygenase-1-influences-satellite-cells-and-progression-of-duchenne-muscular-dystrophy-in-mice
#14
Katarzyna Pietraszek-Gremplewicz, Magdalena Kozakowska, Iwona Bronisz-Budzynska, Maciej Ciesla, Olga Mucha, Paulina Podkalicka, Magdalena Madej, Urszula Glowniak, Krzysztof Tomasz Szade, Jacek Stepniewski, Mateusz Jez, Kalina Andrysiak, Karolina Bukowska-Strakova, Anna Kaminska, Anna Kostera-Pruszczyk, Alicja Jozkowicz, Agnieszka Loboda, Jozef Dulak
AIMS: Muscle damage in Duchenne Muscular Dystrophy (DMD) caused by the lack of dystrophin is strongly linked to inflammation. Heme oxygenase-1 (HO-1; Hmox1) is an anti-inflammatory and cytoprotective enzyme affecting myoblasts differentiation by inhibiting myomirs. The role of HO-1 has not been so far well addressed in DMD. RESULTS: In dystrophin-deficient mdx mice expression of Hmox1 in limb skeletal muscles and diaphragm is higher than in wild-type animals, being consistently elevated from 8 up to 52 weeks, both in myofibres and inflammatory leukocytes...
April 19, 2018: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/29628790/heme-oxygenase-inhibition-in-cancers-possible-tools-and-targets
#15
REVIEW
Paulina Podkalicka, Olga Mucha, Alicja Józkowicz, Józef Dulak, Agnieszka Łoboda
Heme oxygenase-1 (HO-1, encoded by HMOX1 ) through degradation of pro-oxidant heme into carbon monoxide (CO), ferrous ions (Fe2+ ) and biliverdin, exhibits cytoprotective, anti-apoptotic and anti-inflammatory properties. All of these potentially beneficial functions of HO-1 may play an important role in tumors' development and progression. Moreover, HO-1 is very often upregulated in tumors in comparison to healthy tissues, and its expression is further induced upon chemo-, radio- and photodynamic therapy, what results in decreased effectiveness of the treatment...
March 2018: Contemporary Oncology Współczesna Onkologia
https://www.readbyqxmd.com/read/29611102/11%C3%AE-hsd1-inhibition-by-rl-118-promotes-autophagy-and-correlates-with-reduced-oxidative-stress-and-inflammation-enhancing-cognitive-performance-in-samp8-mouse-model
#16
Dolors Puigoriol-Illamola, Christian Griñán-Ferré, Foteini Vasilopoulou, Rosana Leiva, Santiago Vázquez, Mercè Pallàs
Elevated glucocorticoid (GC) exposure is widely accepted as a key factor in the age-related cognitive decline in rodents and humans. 11β-HSD1 is a key enzyme in the GCs pathway, catalyzing the conversion of 11β-dehydrocorticosterone to corticosterone in mice, with possible implications in neurodegenerative processes and cognitive impairment. Here, we determined the effect of a new 11β-HSD1 inhibitor, RL-118, administered to 12-month-old senescence-accelerated mouse-prone 8 (SAMP8) mice with neuropathological AD-like hallmarks and widely used as a rodent model of cognitive dysfunction...
April 2, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29608906/excess-homocysteine-upregulates-the-nrf2-antioxidant-pathway-in-retinal-m%C3%A3-ller-glial-cells
#17
Soumya Navneet, Xuezhi Cui, Jing Zhao, Jing Wang, Navneet Ammal Kaidery, Bobby Thomas, Kathryn E Bollinger, Yisang Yoon, Sylvia B Smith
This study evaluated the effects of elevated homocysteine (Hcy) on the oxidative stress response in retinal Müller glial cells. Elevated Hcy has been implicated in retinal diseases including glaucoma and optic neuropathy, which are characterized by retinal ganglion cell (RGC) loss. To understand the mechanisms of Hcy-induced RGC loss, in vitro and in vivo models have been utilized. In vitro isolated RGCs are quite sensitive to elevated Hcy levels, while in vivo murine models of hyperhomocysteinemia (HHcy) demonstrate a more modest RGC loss (∼20%) over a period of many months...
March 30, 2018: Experimental Eye Research
https://www.readbyqxmd.com/read/29560114/deregulation-of-linc-pint-in-acute-lymphoblastic-leukemia-is-implicated-in-abnormal-proliferation-of-leukemic-cells
#18
Andoni Garitano-Trojaola, Edurne San José-Enériz, Teresa Ezponda, Juan Pablo Unfried, Arantxa Carrasco-León, Nerea Razquin, Marina Barriocanal, Amaia Vilas-Zornoza, Bruno Sangro, Victor Segura, Felipe Prósper, Puri Fortes, Xabier Agirre
Long Non-Coding RNAs (lncRNAs) are functional RNAs longer than 200 nucleotides in length. Several lncRNAs are involved in cell proliferation and are deregulated in several human tumors. Few lncRNAs have been described to play a role in Acute Lymphoblastic Leukemia (ALL). In this study, we carried out a genome wide lncRNA expression profiling in ALL samples and peripheral blood samples obtained from healthy donors. We detected 43 lncRNAs that were aberrantly expressed in ALL. Interestingly, among them, linc-PINT showed a significant downregulation in T and B-ALL...
February 27, 2018: Oncotarget
https://www.readbyqxmd.com/read/29527116/obesity-induced-metabolic-disturbance-drives-oxidative-stress-and-complement-activation-in-the-retinal-environment
#19
Riccardo Natoli, Nilisha Fernando, Tess Dahlenburg, Haihan Jiao, Riemke Aggio-Bruce, Nigel L Barnett, Juan Manuel Chao de la Barca, Guillaume Tcherkez, Pascal Reynier, Johnny Fang, Joshua A Chu-Tan, Krisztina Valter, Jan Provis, Matt Rutar
Purpose: Systemic increases in reactive oxygen species, and their association with inflammation, have been proposed as an underlying mechanism linking obesity and age-related macular degeneration (AMD). Studies have found increased levels of oxidative stress biomarkers and inflammatory cytokines in obese individuals; however, the correlation between obesity and retinal inflammation has yet to be assessed. We used the leptin-deficient (ob/ob) mouse to further our understanding of the contribution of obesity to retinal oxidative stress and inflammation...
2018: Molecular Vision
https://www.readbyqxmd.com/read/29507582/differential-effects-of-three-techniques-for-hepatic-vascular-exclusion-during-resection-for-liver-cirrhosis-on-hepatic-ischemia-reperfusion-injury-in-rats
#20
Changjun Jia, Chaoliu Dai, Hailiang Wang, Yi Wan, Yunyu Qiao, Feng Xu, Songlin Peng, Yang Zhao, Chuang Zhao, Liang Zhao
Background/Aims: Hepatic ischemia-reperfusion (I/R) injury is a serious concern during hepatic vascular occlusion. The objectives of this study were to assess effects of three techniques for hepatic vascular occlusion on I/R injury and to explore the underlying mechanisms. Methods: Liver cirrhotic rats had undertaken Pringle maneuver (PR), hemihepatic vascular occlusion (HH), or hepatic blood inflow occlusion without hemihepatic artery control (WH). Levels of tumor necrosis factor alpha (TNF- α ), nuclear factor kappa B (NF- κ B), toll-like receptor 4 (TLR4), TIR-domain-containing adapter-inducing interferon- β (TRIF), and hemeoxygenase 1 (HMOX1) were assayed...
2018: Gastroenterology Research and Practice
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