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Gene expression in peripheral blood cells in response to oxidative stress

Cleetus Cherupanakkal, Vijayakumar Ramachadrappa, Tamilarasu Kadhiravan, Narayanan Parameswaran, Subhash Chandra Parija, Agieshkumar Balakrishna Pillai, Soundravally Rajendiran
The role of oxidative stress in the pathogenesis of dengue infection is not completely known. A recent study reveals the involvement of oxidative stress responsive molecules in the generation of host immune responses to dengue virus in vitro. Objective of the present study was to analyse the changes in the expression of oxidant-antioxidant genes Nox-2 (NADPH oxidase) and Nrf2 (nuclear factor-erythroid 2-related factor 2) in patients with dengue during the early phase of infection compared to other febrile illness (OFI) cases and healthy controls using Real-time qPCR assay...
March 2017: Virusdisease
Jaspreet Kaur Gill, J S Arora, B V Sunil Kumar, C S Mukhopadhyay, Simarjeet Kaur, Neeraj Kashyap
Heat stress is an important domain of research in livestock due to its negative impact on production and disease resistance. The augmentation of stress in the body stimulates the antioxidative activity comprising various enzymes (viz., catalase, superoxide dismutase), metabolites (reduced glutathione, etc.), vitamins, minerals, etc. to combat the situation. The major key players involved in regulation of heat shock response in eukaryotes are the transcription factors, called as heat shock factors (HSF). They activate the heat shock protein (HSP) genes by binding to their promoters...
April 27, 2017: International Journal of Biometeorology
Thomas Condamine, George A Dominguez, Je-In Youn, Andrew V Kossenkov, Sridevi Mony, Kevin Alicea-Torres, Evgenii Tcyganov, Ayumi Hashimoto, Yulia Nefedova, Cindy Lin, Simona Partlova, Alfred Garfall, Dan T Vogl, Xiaowei Xu, Stella C Knight, George Malietzis, Gui Han Lee, Evgeniy Eruslanov, Steven M Albelda, Xianwei Wang, Jawahar L Mehta, Meenakshi Bewtra, Anil Rustgi, Neil Hockstein, Robert Witt, Gregory Masters, Brian Nam, Denis Smirnov, Manuel A Sepulveda, Dmitry I Gabrilovich
Polymorphonuclear myeloid-derived suppressor cells (PMN-MDSC) are important regulators of immune responses in cancer and have been directly implicated in promotion of tumor progression. However, the heterogeneity of these cells and lack of distinct markers hampers the progress in understanding of the biology and clinical importance of these cells. Using partial enrichment of PMN-MDSC with gradient centrifugation we determined that low density PMN-MDSC and high density neutrophils from the same cancer patients had a distinct gene profile...
August 2016: Science Immunology
Sai Huang, Cong Feng, Li Chen, Zhi Huang, Xuan Zhou, Bei Li, Li-Li Wang, Wei Chen, Fa-Qin Lv, Tan-Shi Li
BACKGROUND This study aimed to uncover the molecular mechanisms underlying mild and severe pneumonia by use of mRNA sequencing (RNA-seq). MATERIAL AND METHODS RNA was extracted from the peripheral blood of patients with mild pneumonia, severe pneumonia, and healthy controls. Sequencing was performed on the HiSeq4000 platform. After filtering, clean reads were mapped to the human reference genome hg19. Differentially expressed genes (DEGs) were identified between the control group and the mild or severe group...
April 6, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Amber M Milan, Shikha Pundir, Chantal A Pileggi, James F Markworth, Paul A Lewandowski, David Cameron-Smith
Postprandial inflammation and endotoxaemia are determinants of cardiovascular and metabolic disease risk which are amplified by high fat meals. We aimed to examine the determinants of postprandial inflammation and endotoxaemia in older and younger adults following a high fat mixed meal. In a randomised cross-over trial, healthy participants aged 20-25 and 60-75 years (n = 15/group) consumed a high-fat breakfast and a low-fat breakfast. Plasma taken at baseline and post-meal for 5 h was analysed for circulating endotoxin, cytokines (monocyte chemotactic protein-1 (MCP-1), interleukin (IL)-1β, IL-6, and tumour necrosis factor-alpha (TNF-α)), lipopolysaccharide binding protein (LBP), and inflammatory gene expression in peripheral blood mononuclear cells (PBMC)...
April 2, 2017: Nutrients
Breno Fernando Martins de Almeida, Kathlenn Liezbeth Oliveira Silva, Vanessa Marim Chiku, Aline Aparecida Correa Leal, Gabriela Lovizutto Venturin, Luis Gustavo Narciso, Maria Fernanda Cereijido Bersni Fink, Flavia de Rezende Eugênio, Paulo Sergio Patto Dos Santos, Paulo Cesar Ciarlini, Valéria Marçal Felix de Lima
Canine visceral leishmaniasis (CVL) is known to affect the cellular immunity of infected dogs, through impairing lymphoproliferation and microbicidal mechanisms. This study examined heme oxygenase-1 (HO-1) and its metabolites, oxidative stress and IL-10 levels in CVL and investigated correlations between these parameters. Additionally, the effects of HO-1 inhibition on the lymphoproliferative response and cytokine production in lymph node cells (LNCs) from infected dogs were evaluated. Forty-four dogs, 24 controls and 20 dogs with CVL were selected...
December 30, 2016: Immunobiology
Imran H Chowdhury, Sue-Jie Koo, Shivali Gupta, Lisa Yi Liang, Bojlul Bahar, Laura Silla, Julio Nuñez-Burgos, Natalia Barrientos, Maria Paola Zago, Nisha Jain Garg
BACKGROUND: Chronic inflammation and oxidative stress are hallmarks of chagasic cardiomyopathy (CCM). In this study, we determined if microparticles (MPs) generated during Trypanosoma cruzi (Tc) infection carry the host's signature of the inflammatory/oxidative state and provide information regarding the progression of clinical disease. METHODS: MPs were harvested from supernatants of human peripheral blood mononuclear cells in vitro incubated with Tc (control: LPS treated), plasma of seropositive humans with a clinically asymptomatic (CA) or symptomatic (CS) disease state (vs...
2017: Journal of Innate Immunity
Iwona A Buskiewicz, Theresa Montgomery, Elizabeth C Yasewicz, Sally A Huber, Michael P Murphy, Richard C Hartley, Ryan Kelly, Mary K Crow, Andras Perl, Ralph C Budd, Andreas Koenig
The increased expression of genes induced by type I interferon (IFN) is characteristic of viral infections and systemic lupus erythematosus (SLE). We showed that mitochondrial antiviral signaling (MAVS) protein, which normally forms a complex with retinoic acid gene I (RIG-I)-like helicases during viral infection, was activated by oxidative stress independently of RIG-I helicases. We found that chemically generated oxidative stress stimulated the formation of MAVS oligomers, which led to mitochondrial hyperpolarization and decreased adenosine triphosphate production and spare respiratory capacity, responses that were not observed in similarly treated cells lacking MAVS...
November 29, 2016: Science Signaling
Yoshinari Obata, Norikazu Maeda, Yuya Yamada, Koji Yamamoto, Seiji Nakamura, Masaya Yamaoka, Yoshimitsu Tanaka, Shigeki Masuda, Hirofumi Nagao, Shiro Fukuda, Yuya Fujishima, Shunbun Kita, Hitoshi Nishizawa, Tohru Funahashi, Ken-Ichi Matsubara, Yuji Matsuzawa, Iichiro Shimomura
BACKGROUND: Visceral fat plays a central role in the development of metabolic syndrome and atherosclerotic cardiovascular diseases. The association of visceral fat accumulation with cardio-metabolic diseases has been reported, but the impact of visceral fat on the gene expression profile in peripheral blood cells remains to be determined. The aim of this study was to determine the effects of visceral fat area (VFA) and subcutaneous fat area (SFA) on the gene expression profile in peripheral blood cells of obese subjects...
November 29, 2016: Cardiovascular Diabetology
Akira Torigoe, Emiko Sato, Takefumi Mori, Norio Ieiri, Chika Takahashi, Yoko Ishida, Osamu Hotta, Sadayoshi Ito
Introduction Oxidative stress is one of the main mediators of progression of chronic kidney diseases (CKD). Nuclear factor E2-related factor 2 (Nrf2) is the transcription factor of antioxidant and detoxifying enzymes and related proteins which play an important role in cellular defense. Long-time hemodialysis (HD) therapy (8 hours) has been considered to be more beneficial compared to normal HD therapy (4 hours). We investigated oxidative response related to Nrf2 in peripheral blood mononuclear cells (PBMCs) of long-time HD and normal HD patients...
October 2016: Hemodialysis International
Sheeja Liza Easo, Parayanthala Valappil Mohanan
Iron oxide nanoparticles present an attractive choice for carcinogenic cell destruction via hyperthermia treatment due to its small size and magnetic susceptibility. Dextran stabilized iron oxide nanoparticles (DIONPs) synthesized and characterized for this purpose were used to evaluate its effect on cellular uptake, cytotoxicity, and oxidative stress response in human peripheral blood lymphocytes. In the absence of efficient internalization and perceptible apoptosis, DIONPs were still capable of inducing significant levels of reactive oxygen species formation shortly after exposure...
December 14, 2016: Biointerphases
Anna Maria Fratta Pasini, Marcello Ferrari, Chiara Stranieri, Paola Vallerio, Chiara Mozzini, Ulisse Garbin, Giorgia Zambon, Luciano Cominacini
Inadequacy of antioxidant nuclear factor-E2-related factor 2 (Nrf2) and endoplasmic reticulum stress-mediated unfolded protein response has been implicated in severe chronic obstructive pulmonary disease (COPD) and cigarette smoking-induced emphysema. As evidence suggests that the ability to upregulate Nrf2 expression may influence the progression of COPD and no data exist up to now in ex-smokers with mild-moderate COPD, this study was first aimed to evaluate Nrf2 and unfolded protein response expression in peripheral blood mononuclear cells (PBMC) of mild-moderate ex-smokers with COPD compared to smoking habit-matched non-COPD subjects...
2016: International Journal of Chronic Obstructive Pulmonary Disease
Behrooz Soltani, Nasser Ghaemi, Majid Sadeghizadeh, Farhood Najafi
Exposure to ionizing radiation (IR) could be detrimental to health. Oxidative stress, DNA damage, and inflammation are implicated in radiation damage. Curcumin, a natural polyphenol, has remarkable antioxidant, anti-inflammation and anticarcinogenic properties and is reported to protect cells and organisms against gamma-rays. We have recently enhanced solubility of curcumin via a novel dendrosomal nanoformulation (DNC). The objective of this study was to assess the potential efficacy of this nanoformulation in protecting human peripheral blood mononuclear cells (PBMC) against gamma-radiation...
September 25, 2016: Chemico-biological Interactions
Jusciele B Moreli, Janine H Santos, Aline Rodrigues Lorenzon-Ojea, Simone Corrêa-Silva, Rodrigo S Fortunato, Clarissa Ribeiro Rocha, Marilza V Rudge, Débora C Damasceno, Estela Bevilacqua, Iracema M Calderon
OBJECTIVE: Investigate the DNA damage and its cellular response in blood samples from both mother and the umbilical cord of pregnancies complicated by hyperglycemia. METHODS: A total of 144 subjects were divided into 4 groups: normoglycemia (ND; 46 cases), mild gestational hyperglycemia (MGH; 30 cases), gestational diabetes mellitus (GDM; 45 cases) and type-2 diabetes mellitus (DM2; 23 cases). Peripheral blood mononuclear cell (PBMC) isolation and/or leukocytes from whole maternal and umbilical cord blood were obtained from all groups at delivery...
2016: International Journal of Biological Sciences
Ebun Omoyinmi, Raja Hamaoui, Annette Bryant, Mike Chao Jiang, Trin Athigapanich, Despina Eleftheriou, Mike Hubank, Paul Brogan, Patricia Woo
BACKGROUND: Various pathways involved in the pathogenesis of sJIA have been identified through gene expression profiling in peripheral blood mononuclear cells (PBMC), but not in neutrophils. Since neutrophils are important in tissue damage during inflammation, and are elevated as part of the acute phase response, we hypothesised that neutrophil pathways could also be important in the pathogenesis of sJIA. We therefore studied the gene profile in both PBMC and neutrophils of sJIA patients treated with tocilizumab...
February 9, 2016: Pediatric Rheumatology Online Journal
Mark L Laudenslager, Teresa L Simoneau, Sam Philips, Patrick Benitez, Crystal Natvig, Steve Cole
Few studies have addressed whether stress-associated physiological changes in caregivers are reversible by psychological interventions mitigating distress. We report on pro-inflammatory, sympathetic, and oxidative stress gene expression in response to stress management for caregivers of allogeneic hematopoietic stem cell transplant (Allo-HSCT) patients. Following randomization by permuted block to either treatment as usual (TAU, n = 11) or a stress management intervention (PsychoEducation, Paced Respiration, and Relaxation, PEPRR, n = 13), twenty-four caregivers were selected at the conclusion of a larger trial of 149 caregivers...
April 2016: Journal of Behavioral Medicine
Jacqueline S Garcia, Min Huang, Bruno C Medeiros, Beverly S Mitchell
PURPOSE: This study was performed to determine whether the investigational proteasome inhibitor ixazomib demonstrated selective antineoplastic activity against acute myelogenous leukemia cells expressing a mutated nucleophosmin-1 gene and to gain a better understanding of its mechanisms of action. EXPERIMENTAL DESIGN: The cytotoxic effects of ixazomib treatment were analyzed in human acute myelogenous leukemia (AML) cell lines and primary AML samples expressing wild-type or mutated NPM1 (NPMc(+))...
April 15, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
Sara Mina, Cindy Staerck, Sènan M d'Almeida, Agnès Marot, Yves Delneste, Alphonse Calenda, Julie Tabiasco, Jean-Philippe Bouchara, Maxime J J Fleury
Scedosporium boydii is an opportunistic filamentous fungus which may be responsible for a large variety of infections in both immunocompetent and immunocompromised individuals. This fungus belongs to the Scedosporium apiospermum species complex which usually ranks second among the filamentous fungi colonizing the airways of patients with cystic fibrosis (CF). Species of the S. apiospermum complex are able to chronically colonize the CF airways suggesting pathogenic mechanisms allowing persistence and growth of these fungi in the respiratory tract...
December 2015: Fungal Biology
Tineke C T M van der Pouw Kraan, Weena J Chen, Mathijs C M Bunck, Daniel H van Raalte, Nynke J van der Zijl, Renate E van Genugten, Liselotte van Bloemendaal, Josefien M Baggen, Erik H Serné, Michaela Diamant, Anton J G Horrevoets
BACKGROUND: Metabolic syndrome (MetS) is characterized by central obesity, insulin resistance, dysglycemia, and a pro-atherogenic plasma lipid profile. MetS creates a high risk for development of type 2 diabetes (T2DM) and cardiovascular disease (CVD), presumably by altering inflammatory responses. Presently, it is unknown how the chronic metabolic disturbances in acute hyperglycemia, MetS and T2DM affect the immune activity of peripheral blood cells. METHODS: We performed genome-wide expression analysis of peripheral blood cells obtained from patients with T2DM (n = 6) and age-, sex- , BMI- and blood pressure-matched obese individuals with MetS (n = 4) and lean healthy normoglycemic controls (n = 3), both under fasting conditions and after controlled induction of acute hyperglycemia during a 70 min hyperglycemic clamp...
2015: BMC Medical Genomics
Braden Kuo, Manoj Bhasin, Jolene Jacquart, Matthew A Scult, Lauren Slipp, Eric Isaac Kagan Riklin, Veronique Lepoutre, Nicole Comosa, Beth-Ann Norton, Allison Dassatti, Jessica Rosenblum, Andrea H Thurler, Brian C Surjanhata, Nicole N Hasheminejad, Leslee Kagan, Ellen Slawsby, Sowmya R Rao, Eric A Macklin, Gregory L Fricchione, Herbert Benson, Towia A Libermann, Joshua Korzenik, John W Denninger
INTRODUCTION: Irritable Bowel Syndrome (IBS) and Inflammatory Bowel Disease (IBD) can profoundly affect quality of life and are influenced by stress and resiliency. The impact of mind-body interventions (MBIs) on IBS and IBD patients has not previously been examined. METHODS: Nineteen IBS and 29 IBD patients were enrolled in a 9-week relaxation response based mind-body group intervention (RR-MBI), focusing on elicitation of the RR and cognitive skill building. Symptom questionnaires and inflammatory markers were assessed pre- and post-intervention, and at short-term follow-up...
2015: PloS One
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