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https://www.readbyqxmd.com/read/28730681/histone-variants-expression-in-peripheral-blood-mononuclear-cells-of-patients-with-rheumatoid-arthritis
#1
Maryam Asadipour, Vahideh Hassan-Zadeh, Naheed Aryaeian, Farhad Shahram, Mahdi Mahmoudi
AIM: The purpose of the present study was to analyze the expression of four histone variants, implicated in the regulation of gene expression, in peripheral blood mononuclear cell (PBMC) samples of patients with rheumatoid arthritis and healthy controls. METHOD: We analyzed the expression of three genes encoding histone variants H3.3, H2A.Z, macroH2A1.1 and macroH2A1.2 in PBMC samples of 50 patients with RA, diagnosed according to American College of Rheumatology (ACR) criteria, and 51 matched healthy controls using SYBR green real-time polymerase chain reaction...
July 21, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28730155/surveillance-study-of-influenza-occurrence-and-immunity-in-a-wisconsin-cohort-during-the-2009-pandemic
#2
Chia-Yun Lo, Susan L Strobl, Kimberly Dunham, Wei Wang, Lucy Stewart, Julia A Misplon, Mayra Garcia, Jin Gao, Tatsuhiko Ozawa, Graeme E Price, Jose Navidad, Steve Gradus, Sanjib Bhattacharyya, Cecile Viboud, Maryna C Eichelberger, Carol D Weiss, Jack Gorski, Suzanne L Epstein
BACKGROUND: Antibody and T-cell immunity to conserved influenza virus antigens can protect animals against infection with diverse influenza strains. Although immunity against conserved antigens occurs in humans, whether such responses provide cross-protection in humans and could be harnessed as the basis for universal influenza vaccines is controversial. The 2009 pandemic provided an opportunity to investigate whether pre-existing cross-reactive immunity affected susceptibility to infection...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28727837/differing-roles-for-short-chain-fatty-acids-and-gpr43-agonism-in-the-regulation-of-intestinal-barrier-function-and-immune-responses
#3
Warren N D'Souza, Jason Douangpanya, Sharon Mu, Peter Jaeckel, Ming Zhang, Joseph R Maxwell, James B Rottman, Katja Labitzke, Angela Willee, Holger Beckmann, Yingcai Wang, Yang Li, Ralf Schwandner, James A Johnston, Jennifer E Towne, Hailing Hsu
Inflammatory bowel disease (IBD) is associated with a loss of intestinal barrier function and dysregulated immune responses. It has been shown that short chain fatty acids (SCFAs) are protective in IBD and that GPR43 mediates the protective effects of SCFAs. In this study, we investigated the effects of SCFAs in comparison to highly specific GPR43 agonists on human intestinal epithelial and immune cells. Our results confirm that SCFAs are enhancers of barrier function in intestinal epithelial cells. Additionally, SCFAs also displayed potent immunoregulatory properties based upon the ability to inhibit LPS-induced cytokine production in PBMC, and human T cell proliferation and cytokine production...
2017: PloS One
https://www.readbyqxmd.com/read/28726020/patterns-of-circulatory-and-peripheral-blood-mononuclear-cytokines-in-rheumatoid-arthritis
#4
Fawaz Y Azizieh, Khaled Al Jarallah, Diaa Shehab, Renu Gupta, Kamaludin Dingle, Raj Raghupathy
An imbalance in pro- and anti-inflammatory cytokines is suggested to contribute to tissue damage in rheumatoid arthritis (RA). This study was aimed at investigating profiles of cytokines in circulation and cytokines produced by mitogen-stimulated peripheral blood mononuclear cells (PBMC) in RA patients and healthy controls, and to explore correlations of cytokines with disease activity. Our aim was to identify patterns of cytokine expression as possible indicators of disease activity. Levels of plasma cytokines and PBMC-secreted cytokines were estimated in 26 female RA patients and 28 controls...
July 19, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28724769/stlv-1-infection-of-papio-anubis-tax-sequence-heterogeneity-and-t-cell-recognition
#5
James M Termini, Diogo M Magnani, Helen S Maxwell, William Lauer, Iris Castro, Jerilyn Pecotte, Glen N Barber, David I Watkins, Ronald C Desrosiers
Natural infection of baboons with simian T lymphotropic virus (STLV) is a potentially useful model system for study of vaccination against the human virus HTLV. Here we expand the number of available full-length STLV-1 baboon sequences from one to three and relate T cell responses that recognize the immunodominant Tax protein to the tax sequences present in two individual baboons. Continuously growing T cell lines were established from two baboons, 12141 and 12752. Next-generation sequencing (NGS) of complete STLV genome sequences from these lines revealed them to be closely related but distinct from each other and from the STLV-1 baboon sequence in the NCBI sequence database...
July 19, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28724172/favorable-effects-of-myo-inositol-selenomethionine-or-their-combination-on-the-hydrogen-peroxide-induced-oxidative-stress-of-peripheral-mononuclear-cells-from-patients-with-hashimoto-s-thyroiditis-preliminary-in-vitro-studies
#6
S Benvenga, T Vicchio, F Di Bari, R Vita, P Fallahi, S M Ferrari, S Catania, C Costa, A Antonelli
OBJECTIVE: The aim of this study was to assess whether blood mononuclear cells (PBMC) from Hashimoto's thyroiditis (HT) and control women, were protected from in vitro H2O2-induced oxidative stress after addition of antioxidants. PATIENTS AND METHODS: PBMC, from 8 HT women and 3 healthy women (controls), were cultured in the presence of 200 µM H2O2 alone, with subsequent addition of myo-inositol (Myo) (0.25, 0.5, 1.0 µM), selenomethionine (SelMet) (0.25, 0.5, 1...
June 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28723950/high-affinity-anti-tim-3-and-anti-kir-monoclonal-antibodies-cloned-from-healthy-human-individuals
#7
Stefan Ryser, Angeles Estellés, Edgar Tenorio, Lawrence M Kauvar, Mikhail L Gishizky
We report here the cloning of native high affinity anti-TIM-3 and anti-KIR IgG monoclonal antibodies (mAbs) from peripheral blood mononuclear cells (PBMC) of healthy human donors. The cells that express these mAbs are rare, present at a frequency of less than one per 105 memory B-cells. Using our proprietary multiplexed screening and cloning technology CellSpot™ we assessed the presence of memory B-cells reactive to foreign and endogenous disease-associated antigens within the same individual. When comparing the frequencies of antigen-specific memory B-cells analyzed in over 20 screening campaigns, we found a strong correlation of the presence of anti-TIM-3 memory B-cells with memory B-cells expressing mAbs against three disease-associated antigens: (i) bacterial DNABII proteins that are a marker for Gram negative and Gram positive bacterial infections, (ii) hemagglutinin (HA) of influenza virus and (iii) the extracellular domain of anaplastic lymphoma kinase (ALK)...
2017: PloS One
https://www.readbyqxmd.com/read/28721137/beneficial-effects-of-n-3-polyunsaturated-fatty-acids-on-adiponectin-levels-and-adipor-gene-expression-in-patients-with-type-2-diabetes-mellitus-a-randomized-placebo-controlled-double-blind-clinical-trial
#8
Maryam Mazaherioun, Ahmad Saedisomeolia, Mohammad Hassan Javanbakht, Fariba Koohdani, Mohammad Reza Eshraghian, Mahmoud Djalali
INTRODUCTION: There is evidence that n-3 polyunsaturated fatty acids (n-3 PUFAs) exert beneficial effects to improve type 2 diabetes mellitus (T2DM), but its complications remain poorly understood. Hypoadiponectinemia is one of the important mechanisms responsible for T2DM which necessitates developing novel therapeutic strategies. We aimed to determine the effect of n-3 PUFA supplementation on circulating adiponectin and mRNA expression of adiponectin receptors (AdipoR1, AdipoR2) and Sirt-1 in T2DM patients...
June 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28719653/isolation-of-a-monoclonal-antibody-from-a-phage-display-library-binding-the-rhesus-macaque-mhc-class-i-allomorph-mamu-a1-001
#9
Nathan Holman, Jason T Weinfurter, Trevor R Harsla, Roger W Wiseman, Aaron J Belli, Anthony J Michaels, Keith A Reimann, Robert I DeMars, Matthew R Reynolds
Monoclonal antibodies that bind to human leukocyte antigen (HLA) are useful tools for HLA-typing, tracking donor-recipient chimerisms after bone marrow transplants, and characterizing specific major histocompatibility complexes (MHC) on cell surfaces. Unfortunately, equivalent reagents are not available for rhesus macaques, which are commonly used animal as models in organ transplant and infectious disease research. To address this deficiency, we isolated an antibody that recognizes the common Indian rhesus macaque MHC class I molecule, Mamu-A1*001...
2017: PloS One
https://www.readbyqxmd.com/read/28719652/long-term-follow-up-of-human-t-cell-responses-to-conserved-hiv-1-regions-elicited-by-dna-simian-adenovirus-mva-vaccine-regimens
#10
Nathifa Moyo, Nicola J Borthwick, Edmund G Wee, Silvia Capucci, Alison Crook, Lucy Dorrell, Tomáš Hanke
BACKGROUND: Durability of vaccine-elicited immune responses is one of the key determinants for vaccine success. Our aim is to develop a vaccination strategy against the human immunodeficiency virus type 1 (HIV-1), which induces protective and durable CD8+ T-cell responses. The central theorem of our approach is to focus T cells on highly conserved regions of the HIV-1 proteome and this is achieved through the use of the first-generation conserved vaccine immunogen HIVconsv. This immunogen vectored by plasmid DNA, simian adenovirus and poxvirus MVA was tested in healthy, HIV-1-negative adults in UK and induced high magnitudes of HIVconsv-specific plurifunctional CD8+ T cells capable of in vitro HIV-1 inhibition...
2017: PloS One
https://www.readbyqxmd.com/read/28714870/antiviral-lipopeptide-cell-membrane-interaction-is-influenced-by-peg-linker-length
#11
Marcelo T Augusto, Axel Hollmann, Matteo Porotto, Anne Moscona, Nuno C Santos
A set of lipopeptides was recently reported for their broad-spectrum antiviral activity against viruses belonging to the Paramyxoviridae family, including human parainfluenza virus type 3 and Nipah virus. Among them, the peptide with a 24-unit PEG linker connecting it to a cholesterol moiety (VG-PEG24-Chol) was found to be the best membrane fusion inhibitory peptide. Here, we evaluated the interaction of the same set of peptides with biomembrane model systems and isolated human peripheral blood mononuclear cells (PBMC)...
July 15, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28713486/concurrent-aerobic-and-resistance-training-has-anti-inflammatory-effects-and-increases-both-plasma-and-leukocyte-levels-of-igf-1-in-late-middle-aged-type-2-diabetic-patients
#12
Giosuè Annibalini, Francesco Lucertini, Deborah Agostini, Luciana Vallorani, Annamaria Gioacchini, Elena Barbieri, Michele Guescini, Lucia Casadei, Annunziata Passalia, Marta Del Sal, Giovanni Piccoli, Mauro Andreani, Ario Federici, Vilberto Stocchi
Type 2 diabetes (T2D) is an age-related chronic disease associated with metabolic dysregulation, chronic inflammation, and activation of peripheral blood mononuclear cells (PBMC). The aim of this study was to assess the effects of a concurrent exercise training program on inflammatory status and metabolic parameters of T2D patients. Sixteen male patients (age range 55-70) were randomly assigned to an intervention group (n = 8), which underwent a concurrent aerobic and resistance training program (3 times a week; 16 weeks), or to a control group, which followed physicians' usual diabetes care advices...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28713353/functional-characterization-of-novel-faecalibacterium-prausnitzii-strains-isolated-from-healthy-volunteers-a-step-forward-in-the-use-of-f-prausnitzii-as-a-next-generation-probiotic
#13
Rebeca Martín, Sylvie Miquel, Leandro Benevides, Chantal Bridonneau, Véronique Robert, Sylvie Hudault, Florian Chain, Olivier Berteau, Vasco Azevedo, Jean M Chatel, Harry Sokol, Luis G Bermúdez-Humarán, Muriel Thomas, Philippe Langella
Faecalibacterium prausnitzii is a major member of the Firmicutes phylum and one of the most abundant bacteria in the healthy human microbiota. F. prausnitzii depletion has been reported in several intestinal disorders, and more consistently in Crohn's disease (CD) patients. Despite its importance in human health, only few microbiological studies have been performed to isolate novel F. prausnitzii strains in order to better understand the biodiversity and physiological diversity of this beneficial commensal species...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28709006/compartmental-hbv-evolution-and-replication-in-liver-and-extrahepatic-sites-after-nucleos-tide-analogue-therapy-in-chronic-hepatitis-b-carriers
#14
Shan Gao, Zhong-Ping Duan, Yu Chen, Frank van der Meer, Samuel S Lee, Carla Osiowy, Guido van Marle, Carla S Coffin
BACKGROUND: Hepatitis B virus (HBV) variants are associated with nucleos/tide analogue (NA) response and liver disease but it is unknown whether NA influences extrahepatic HBV persistence. OBJECTIVES: To investigate HBV replication and genetic evolution in hepatic and extrahepatic sites of chronic hepatitis B (CHB) before and after NA therapy. STUDY DESIGN: A total of 13 paired plasma, peripheral blood mononuclear cells (PBMC), were collected from chronic HBV carriers at baseline and after a median 53 weeks NA therapy as well as liver biopsy (N=7 baseline, N=5 follow-up)...
July 5, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28708533/expression-and-molecular-cloning-of-interferon-stimulated-genes-in-buffalo-bubalus-bubalis
#15
Nipuna Thakur, Girjesh Singh, A Paul, J Bharati, G Rajesh, Vidyalakshmi Gm, V S Chouhan, S K Bhure, V P Maurya, G Singh, M Sarkar
Buffalo, the most important livestock species in tropical India, remains to be a poor breeder mainly due to embryonic mortality (65%) occurring mostly between 16 and 18 days of pregnancy. Early and accurate diagnosis of pregnancy can thus become a boon for successful herd management in buffalo. However, most of the currently available methods allow diagnosis only after 30 days post AI. Interferon tau (IFNT), the first pregnancy recognition signal in ruminants is one such molecule, which stimulates expression of various Interferon stimulated genes (ISGs) in the peripheral blood mononuclear cells (PBMC's) concomitant with IFNT signaling which occurs around maternal recognition of pregnancy (MRP)...
June 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28707376/immunosenescence-induced-by-plasma-from-individuals-with-obesity-caused-cell-signaling-dysfunction-and-inflammation
#16
Mariana Migliorini Parisi, Lucas Kich Grun, Patrícia Lavandoski, Letícia Biscaino Alves, Ivi Juliana Bristot, Rita Mattiello, Cláudio Corá Mottin, Fábio Klamt, Marcus Herbert Jones, Alexandre Vontobel Padoin, Fátima Costa Rodrigues Guma, Florencia María Barbé-Tuana
OBJECTIVE: To evaluate the consequences of plasma from individuals with obesity on parameters associated with immunosenescence in unrelated healthy peripheral blood mononuclear cells (PBMC). METHODS: Freshly isolated PBMC were incubated in media supplemented with 10% of plasma from individuals with obesity or control subjects for the first 4 hours of 24 to 120 hours of culture. RESULTS: Plasma from individuals with obesity modulated the phenotype of healthy PBMC, leading to a higher rate of apoptosis, lower amounts of phospho-γH2AX and -p53, and mitochondrial dysfunction...
July 14, 2017: Obesity
https://www.readbyqxmd.com/read/28706520/hypothermia-promotes-interleukin-22-expression-and-fine-tunes-its-biological-activity
#17
Evgeny Chichelnitskiy, Britta Himmelseher, Malte Bachmann, Josef Pfeilschifter, Heiko Mühl
Disturbed homeostasis as a result of tissue stress can provoke leukocyte responses enabling recovery. Since mild hypothermia displays specific clinically relevant tissue-protective properties and interleukin (IL)-22 promotes healing at host/environment interfaces, effects of lowered ambient temperature on IL-22 were studied. We demonstrate that a 5-h exposure of endotoxemic mice to 4°C reduces body temperature by 5.0° and enhances splenic and colonic il22 gene expression. In contrast, tumor necrosis factor-α and IL-17A were not increased...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28705647/telomerase-activity-in-patients-with-stage-2-5d-chronic-kidney-disease
#18
Veysel Kidir, Ayse Aynali, Atila Altuntas, Salih Inal, Buket Aridogan, Mehmet Tugrul Sezer
BACKGROUND: Molecular mechanisms of increased cardiovascular mortality in chronic kidney disease (CKD) associated with biological age are not well understood. Recent studies support the hypothesis that common factors responsible for this phenomenon are cellular aging and telomere dysfunction. OBJECTIVES: The purpose of this study was to investigate the relation between telomerase activity and CKD stages. METHODS: The study included 120 patients who were followed-up for CKD stage 2-5D, composed of 30 patients of each stage and 30 healthy volunteers without any known disease who were admitted to our hospital for routine check-ups...
July 10, 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/28699360/mir-34a-and-mir-9-are-overexpressed-and-sirt-genes-are-downregulated-in-peripheral-blood-mononuclear-cells-of-aging-humans
#19
Magdalena Owczarz, Monika Budzinska, Anna Domaszewska-Szostek, Joanna Borkowska, Jacek Polosak, Magdalena Gewartowska, Przemyslaw Slusarczyk, Monika Puzianowska-Kuznicka
Increased expression of sirtuins lowers the risk of age-related diseases, while their role in the regulation of longevity is not firmly established. Since aging is associated with immunosenescence, we tested whether sirtuin expression was modified in peripheral blood mononuclear cells (PBMC) in an age-related manner and whether this might result from altered expression of the selected miRNAs. The expression of seven SIRT genes and of SIRT1 mRNA-interacting miR-9, miR-34a, miR-132, and miR-199a-5p was evaluated by real-time PCR in PBMC originating from young (Y, n = 57, mean age 27 ± 4...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28693071/-effect-of-transcatheter-arterial-chemoembolization-combined-with-thymosin-alpha-1-on-the-autophagy-of-immune-cells-from-advanced-hepatocellular-carcinoma
#20
S J Fang, L Y Zheng, Z W Zhao, X X Fan, M Xu, J S Ji
Objective: To investigate the effect of transcatheter arterial chemoembolization(TACE)combined with thymosin alpha1(Tα1)on the autophagy of immune cells from advanced hepatocellular carcinoma. Methods: A total of 30 patients with advanced liver cancer enrolled in Lishui Central Hospital from September 2015 to June 2016 were collected in this study. The average age of patients was 16-75(56±12) years. All patients were treated with TACE after enrolled in hospital in a week. Patients were divided into TACE group and TACE+ Tα1 treatment group(15 cases in each group)...
July 4, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
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