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Immunobiology

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https://www.readbyqxmd.com/read/28935214/corrigendum-to-psoriatic-inflammation-causes-hepatic-inflammation-with-concomitant-dysregulation-in-hepatic-metabolism-via-il-17a-il-17-receptor-signaling-in-a-murine-model-immunobiology-222-2-february-2017-128-136
#1
N O Al-Harbi, A Nadeem, M M Al-Harbi, K M Zoheir, M A Ansari, A M El-Sherbeeny, K M Alanazi, M R Alotaibi, S F Ahmad
No abstract text is available yet for this article.
September 18, 2017: Immunobiology
https://www.readbyqxmd.com/read/28911957/a-double-blind-randomized-experimental-study-on-the-use-of-igm-enriched-polyclonal-immunoglobulins-in-an-animal-model-of-pneumonia-developing-shock
#2
Rosanna Vaschetto, Nausicaa Clemente, Aline Pagni, Teresa Esposito, Federico Longhini, Francesca Mercalli, Elena Boggio, Renzo Boldorini, Annalisa Chiocchetti, Umberto Dianzani, Paolo Navalesi
BACKGROUND: Patients with severe pneumonia often develop septic shock. IgM-enriched immunoglobulins have been proposed as a potential adjuvant therapy for septic shock. While in vitro data are available on the possible mechanisms of action of IgM-enriched immunoglobulins, the results of the in vivo experimental studies are non-univocal and, overall, unconvincing. We designed this double blinded randomized controlled study to test whether IgM-enriched immunoglobulins administered as rescue treatment in a pneumonia model developing shock, could either limit lung damage and/or contain systemic inflammatory response...
September 8, 2017: Immunobiology
https://www.readbyqxmd.com/read/28889999/humoral-immune-responses-during-asthma-and-influenza-co-morbidity-in-mice
#3
Laura A Doorley, Kim S LeMessurier, Amy R Iverson, Maneesha Palipane, Amali E Samarasinghe
Humoral immunity serve dual functions of direct pathogen neutralization and enhancement of leukocyte function. Antibody classes are determined by antigen triggers, and the resulting antibodies can contribute to disease pathogenesis and host defense. Although asthma and influenza are immunologically distinct diseases, since we have found that allergic asthma exacerbation promotes antiviral host responses to influenza A virus, we hypothesized that humoral immunity may contribute to allergic host protection during influenza...
September 7, 2017: Immunobiology
https://www.readbyqxmd.com/read/28888743/htlv-1-infected-thymic-epithelial-cells-convey-the-virus-to-cd4-t-lymphocytes
#4
Luciana Rodrigues Carvalho Barros, Leandra Linhares-Lacerda, Klaysa Moreira-Ramos, Marcelo Ribeiro-Alves, Maria Cristina Machado Motta, Dumith Chequer Bou-Habib, Wilson Savino
The human T-lymphotropic virus type-1 (HTLV-1) is the causative agent of adult T cell leukemia/lymphoma (ATL) and HTLV-1 associated myelopathy/tropical spastic paraparesis (HAM/TSP). CD4(+)T cells are the main target of HTLV-1, but other cell types are known to be infected, including immature lymphocytes. Developing T cells undergo differentiation in the thymus, through migration and interaction with the thymic microenvironment, in particular with thymic epithelial cells (TEC) the major component of this three dimensional meshwork of non-lymphoid cells...
August 14, 2017: Immunobiology
https://www.readbyqxmd.com/read/28734654/schlafen-14-slfn14-is-a-novel-antiviral-factor-involved-in-the-control-of-viral-replication
#5
Rak-Kyun Seong, Seong-Wook Seo, Ji-Ae Kim, Sarah J Fletcher, Neil V Morgan, Mukesh Kumar, Young-Ki Choi, Ok Sarah Shin
Schlafen (SLFN) proteins have been suggested to play important functions in cell proliferation and immune cell development. In this study, we determined the antiviral activities of putative RNA-helicase domain-containing SLFN14. Murine SLFN14 expression was specifically induced by TLR3-mediated pathways and type I interferon (IFN) in RAW264.7 mouse macrophages. To examine the role of SLFN during viral infection, cells were infected with either wild-type PR8 or delNS1/PR8 virus. SLFN14 expression was specifically induced following influenza virus infection...
July 11, 2017: Immunobiology
https://www.readbyqxmd.com/read/28554684/ovarian-hormones-in-innate-inflammation
#6
Alexandra Stubelius, Annica Andersson, Ulrika Islander, Hans Carlsten
AIM: A more vigorous immune system activation is generally seen in women as compared to men. The reasons for these differences are still not understood. By investigating the immune-regulatory role of estrogens, we have previously shown that estradiol (E2) can regulate and ameliorate rheumatoid arthritis models. The aim of this study was to elucidate the role of ovariectomy (ovx) and estradiol (E2) in innate immune responses. METHODS: Female mice were ovx or sham operated...
August 2017: Immunobiology
https://www.readbyqxmd.com/read/28552268/characterization-of-bip-protein-of-g-lamblia-as-a-potential-immunogen-in-a-mouse-infection-model
#7
Gloria Lopez-Romero, Thania Garzon, Raul Rascon, Alejandra Valdez, Jael Quintero, Aldo A Arvizu-Flores, Adriana Garibay-Escobar, Lucila Rascon, Humberto Astiazarán-García, Carlos Velazquez
Giardia lamblia is a protozoan parasite that causes one of the most common gastrointestinal diseases worldwide. To eliminate the parasite from the host intestine, it is necessary the activation of B-cell and T-cell dependent mechanisms. The knowledge about Giardia antigens that can stimulate the host immune response is limited. Recently, it has been described the Binding Immunoglobulin Protein (BIP) of G. lamblia (71kDa) as a potential immunogen. Additionally, our group has identified a highly immunogenic antigen (5G8 protein) of G...
August 2017: Immunobiology
https://www.readbyqxmd.com/read/28551079/adhesion-attenuates-respiratory-burst-induced-by-different-modes-of-triggering-in-resting-or-lps-primed-neutrophils
#8
Terukazu Sanui, Masaaki Takeshita, Takao Fukuda, Urara Tanaka, Rehab Alshargabi, Yoshitomi Aida, Fusanori Nishimura
The effects of adherence on neutrophil superoxide anion (O2(-)) generation triggered by surface, soluble ligand, or adherence were studied. Resting-neutrophils adhered to the uncoated tubes resulting in O2(-) generation, but not on plasma-, fibrinogen-, vitronectin-, fibronectin-, laminin-, collagen-, or poly HEMA-coated surfaces. Enhanced N-formyl-methionyl-leucyl-phenylalanine (fMLP)-stimulated O2(-) generation by LPS-primed-neutrophils was induced by the incubation on plasma, fibrinogen, vitronectin, fibronectin, or laminin in the absence of Mg(2+)...
August 2017: Immunobiology
https://www.readbyqxmd.com/read/28551078/effects-of-a-tissue-selective-estrogen-complex-on-b-lymphopoiesis-and-b-cell-function
#9
Jauquline Nordqvist, Angelina Bernardi, Ulrika Islander, Hans Carlsten
BACKGROUND/OBJECTIVE: 17β-estradiol (E2) has major effects on the immune system. It induces thymic atrophy, inhibits both T and B lymphopoiesis and stimulates antibody production treatment with E2 has protective effects on the skeleton but is associated with negative side effects in reproductive organs. A tissue-selective estrogen complex (TSEC) comprise of estrogens combined with a selective estrogen receptor modulator (SERM). TSEC therapy displays the bone-protective effects of estrogen, while the negative side effects on reproductive organs are blocked by the SERM...
August 2017: Immunobiology
https://www.readbyqxmd.com/read/28545810/thymic-stromal-lymphopoietin-and-apocynin-alter-the-expression-of-airway-remodeling-factors-in-human-rhinovirus-infected-cells
#10
Joanna Wieczfinska, Rafal Pawliczak
Airway remodeling is a characteristic of bronchial asthma. The process involves the expression of many genes, such as transforming growth factor-beta (TGF-β), tissue inhibitors of metalloproteinases (TIMP-1), MMP and arginase. Human rhinovirus (HRV) is known to cause asthma exacerbations, and viral infections might be involved in the development of airway remodeling. Therefore, the aim of this study was to determine the influence of HRV on the genes involved in airway remodeling and to examine the impact of thymic stromal lymphopoietin (TSLP) and contribution of oxidative stress on airway remodeling in the context of HRV infection...
August 2017: Immunobiology
https://www.readbyqxmd.com/read/28545809/macrophage-specific-nanotechnology-driven-cd163-overexpression-in-human-macrophages-results-in-an-m2-phenotype-under-inflammatory-conditions
#11
Perla Abigail Alvarado-Vazquez, Laura Bernal, Candler A Paige, Rachel L Grosick, Carolina Moracho Vilrriales, David Wilson Ferreira, Cristina Ulecia-Morón, E Alfonso Romero-Sandoval
M1 macrophages release proinflammatory factors during inflammation. They transit to an M2 phenotype and release anti-inflammatory factors to resolve inflammation. An imbalance in the transition from M1 to M2 phenotype in macrophages contributes to the development of persistent inflammation. CD163, a member of the scavenger receptor cysteine-rich family, is an M2 macrophage marker. The functional role of CD163 during the resolution of inflammation is not completely known. We postulate that CD163 contributes to the transition from M1 to M2 phenotype in macrophages...
August 2017: Immunobiology
https://www.readbyqxmd.com/read/28545808/the-absence-of-tnf-permits-myeloid-arginase-1-expression-in-experimental-l-monocytogenes-infection
#12
Xinying Li, A Bruce Lyons, Gregory M Woods, Heinrich Körner
During an immune response inflammatory macrophages with their wide variety of effector mechanisms including the expression of inducible nitric oxide synthase play an important part in the defense against invading pathogens. The inflammatory phenotype requires the presence of TNF which suppresses alternative activation. In the bacterial Listeria monocytogenes infection model inflammatory macrophages are crucial for protection. After infection, TNF-deficient hosts have a similar number of splenic macrophages but die rapidly...
August 2017: Immunobiology
https://www.readbyqxmd.com/read/28526484/regulation-of-cacybp-sip-expression-by-nfat1-transcription-factor
#13
Beata Kądziołka, Wiesława Leśniak, Anna Filipek
In this work we have shown that NFAT1 transcription factor is involved in the regulation of CacyBP/SIP expression. We have demonstrated, by applying Western blot, RT-PCR and luciferase assay that the level of CacyBP/SIP increases upon NFAT1 overexpression. Moreover, inhibition or stimulation of NFAT transcriptional activity exerts a corresponding effect on the expression of CacyBP/SIP gene. Furthermore, EMSA and chromatin immunoprecipitation (ChIP) assay have shown that NFAT1 binds to its specific binding sites within the CacyBP/SIP gene...
August 2017: Immunobiology
https://www.readbyqxmd.com/read/28390705/the-protection-role-of-atg16l1-in-cd11c-dendritic-cells-in-murine-colitis
#14
Hong Zhang, Libo Zheng, Jeremy Chen, Masayuki Fukata, Ryan Ichikawa, David Q Shih, Xiaolan Zhang
The autophagy-related 16-like 1 gene (Atg16l1) is associated with inflammatory bowel disease (IBD) and has been shown to play an essential role in paneth cell function and intestinal homeostasis. However, the functional consequences of Atg16l1 deficiency in myeloid cells, particularly in dendritic cells (DCs), are not fully characterized. The aim of this study is to investigate the functional consequence of Atg16l1 in CD11c(+)DCs in murine colitis. We generated mice deficient in Atg16l1 in CD11c(+)DCs. Dextran Sulfate Sodium (DSS) and S...
July 2017: Immunobiology
https://www.readbyqxmd.com/read/28624137/effect-of-tlr-ligands-co-encapsulated-with-multiepitopic-antigen-in-nanoliposomes-targeted-to-human-dcs-via-fc-receptor-for-cancer-vaccines
#15
Felix Rueda, Christina Eich, Begoña Cordobilla, Pere Domingo, Gerardo Acosta, Fernando Albericio, Luis J Cruz, Joan C Domingo
Nanoliposomes (NLs) hold promise as new highly specific nanomedicine for anti-tumor vaccines, since they could be targeted to specific receptors on dendritic cell (DC) to induce maturation and activation and increase the anti-tumor immune response. Here we studied a NLs formulation targeted or not to FcR (the receptor for the IgG Fc fragment) for the treatment of androgen-responsive prostate cancer. Luteinizing-hormone-releasing hormone (LHRH) peptide (B- and T-cell epitopes), in tandem with a tetanus toxoid T-helper epitope (830-844 region) and several TLR (Toll-Like Receptor) ligands as adjuvants were co-encapsulated...
June 10, 2017: Immunobiology
https://www.readbyqxmd.com/read/28610909/rip1-has-a-role-in-cd40-mediated-apoptosis-in-human-follicular-lymphoma-cells
#16
Jemal Adem, Mine Eray, Jonna Eeva, Ulla Nuutinen, Jukka Pelkonen
CD40 is a cell surface receptor which belongs to tumor necrosis factor receptor (TNFR) family members. It transmits signals that regulate diverse cellular responses such as proliferation, differentiation, adhesion molecule expression and apoptosis. Unlike other TNFR family members (TRAIL-R, Fas-R and TNFR1), the CD40 cytoplasmic tail lacks death domain. However, CD40 is capable of inducing apoptosis in different types of cancer cells including lymphoma. The apoptotic effect of CD40 is linked to the involvement of Fas, TRAIL or receptor interacting protein 1 (RIP1) kinase...
June 10, 2017: Immunobiology
https://www.readbyqxmd.com/read/28601470/tissue-and-serum-mrna-profile-of-mmps-2-9-as-a-potential-novel-biomarker-for-the-most-individual-approach-in-infantile-hemangiomas-and-cancer-disease
#17
Katarzyna Taran, Aneta Wnęk, Józef Kobos, Ewa Andrzejewska, Przemysław Przewratil
Propranolol is a widely-known beta-blocker approved for treating infantile hemangiomas (IH). The mechanisms behind the spectacular IH involution after propranolol treatment remain unclear. Recently, there is strong evidence of overexpression of numerous angiogenic factors in IH tissues, and it is reported that propranolol influences their pathways. However, a number of MMPs studies is highly limited. Here, for the first time, we propose a comprehensive approach by analyzing the expression levels of metalloproteinases-2/9 (MMPs-2/9) and tissue metalloproteinase inhibitor-2 (TIMP-2) in vivo on both, molecular and immunohistochemical levels, and in both, IH tissues and in the serum of IH patients, and relates the obtained results to the tumor's biology and systemic propranolol treatment...
June 3, 2017: Immunobiology
https://www.readbyqxmd.com/read/28623964/editorial-to-eemds-krakow-2015
#18
EDITORIAL
Maciek Siedlar, Karolina Bukowska-Strakova
No abstract text is available yet for this article.
June 2017: Immunobiology
https://www.readbyqxmd.com/read/28578934/reprint-of-microrna-profiling-of-human-intermediate-monocytes
#19
Adam M Zawada, Lu Zhang, Insa E Emrich, Kyrill S Rogacev, Nicolas Krezdorn, Björn Rotter, Danilo Fliser, Yvan Devaux, Loems Ziegler-Heitbrock, Gunnar H Heine
Among the three human monocyte subsets, intermediate CD14++CD16+ monocytes have been characterized as particularly proinflammatory cells in experimental studies and as potential biomarkers of cardiovascular risk in clinical cohorts. To further substantiate the distinct role of intermediate monocytes within human monocyte heterogeneity, we assessed subset-specific expression of miRNAs as central epigenetic regulators of gene expression. We hypothesized that intermediate monocytes have a distinct miRNA profile compared to classical and non-classical monocytes...
June 2017: Immunobiology
https://www.readbyqxmd.com/read/28576353/reprint-of-heme-oxygenase-1-affects-granulopoiesis-in-mice-through-control-of-myelocyte-proliferation
#20
Karolina Bukowska-Strakova, Maciej Ciesla, Krzysztof Szade, Witold Norbert Nowak, Robert Straka, Agata Szade, Malgorzata Tyszka-Czochara, Karolina Najder, Anna Konturek, Maciej Siedlar, Jozef Dulak, Alicja Jozkowicz
Heme oxygenase-1 (HO-1) is stress-inducible, cytoprotective enzyme degrading heme to carbon monoxide (CO), biliverdin and Fe(2+). We showed that HO-1 knock-out mice (HO-1(-/-)) have a twofold higher level of granulocytes than wild type (WT) mice, despite decreased concentration of granulocyte colony-stimulating factor (G-CSF) in the blood and reduced surface expression of G-CSF receptor on the hematopoietic precursors. This suggests the effect of HO-1 on granulopoiesis. Here we aimed to determine the stage of granulopoiesis regulated by HO-1...
June 2017: Immunobiology
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