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Journal of Immunology Research

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https://www.readbyqxmd.com/read/29214185/administration-of-rhodiola-kirilowii-extracts-during-mouse-pregnancy-and-lactation-stimulates-innate-but-not-adaptive-immunity-of-the-offspring
#1
Sławomir Lewicki, Ewa Skopińska-Różewska, Aleksandra Brewczyńska, Robert Zdanowski
The use of antibiotics during pregnancy and lactation is associated with an increased risk of developmental disorders. One of the natural medicinal plants-Rhodiola kirilowii, widely used as an immunostimulant in adults-might be a good alternative to antibiotic treatment. The aim of present study was to assess whether daily oral administration of 20 mg/kg of Rhodiola kirilowii aqueous (RKW) or 50% hydroalcoholic (RKW-A) extracts affected hematological and immunological parameters of 6-week-old mouse progeny...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29214184/protective-effects-of-moringa-oleifera-on-hbv-genotypes-c-and-h-transiently-transfected-huh7-cells
#2
Sina Feustel, Fabiola Ayón-Pérez, Ana Sandoval-Rodriguez, Roberto Rodríguez-Echevarría, Homero Contreras-Salinas, Juan Armendáriz-Borunda, L V Sánchez-Orozco
Chronic hepatitis B infection treatment implicates a long-lasting treatment. M. oleifera extracts contain compounds with antiviral, antioxidant, and antifibrotic properties. In this study, the effect of M. oleifera was evaluated in Huh7 cells expressing either HBV genotypes C or H for the antiviral, antifibrotic, anti-inflammatory, and antioxidative responses. Huh7 cells were treated with an aqueous extract of M. oleifera (leaves) at doses of 0, 30, 45, or 60 μg/mL. The replicative virus and TGF-β1, CTGF, CAT, IFN-β1, and pgRNA expressions were measured by real time...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29204451/targeting-of-immune-cells-by-dual-tlr2-7-ligands-suppresses-features-of-allergic-th2-immune-responses-in-mice
#3
Jonathan Laiño, Andrea Wangorsch, Frank Blanco, Sonja Wolfheimer, Maren Krause, Adam Flaczyk, Tobias-Maximilian Möller, Mindy Tsai, Stephen Galli, Stefan Vieths, Masako Toda, Stephan Scheurer, Stefan Schülke
Background: TLR ligands can promote Th1-biased immune responses, mimicking potent stimuli of viruses and bacteria. Aim: To investigate the adjuvant properties of dual TLR2/7 ligands compared to those of the mixture of both single ligands. Methods: Dual TLR2/7 ligands: CL401, CL413, and CL531, including CL264 (TLR7-ligand) and Pam2CysK4 (TLR2-ligand), were used. Immune-modulatory capacity of the dual ligands with the individual ligands alone or as a mixture in mouse BMmDCs, BMmDC:TC cocultures, or BMCMCs was compared and assessed in naïve mice and in a mouse model of OVA-induced intestinal allergy...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29201923/regulation-of-leukocyte-recruitment-to-the-spleen-and-peritoneal-cavity-during-pristane-induced-inflammation
#4
Yu Li, Junping Wu, Long Xu, Qi Wu, Zhen Wan, Li Li, Hongzhi Yu, Xue Li, Kuan Li, Qiuyang Zhang, Zhili Hou, Xin Sun, Huaiyong Chen
Chronic inflammation is associated with an increased number of leukocytes in the spleen, which are then redirected to the site of inflammation. However, it remains unknown how leukocyte recruitment is regulated. Herein, chronic inflammation was induced by intraperitoneal injection of pristane into mice. Leukocytes in the spleen or in the peritoneal cavity were quantified by flow cytometry. We found that the loss of IL-6 decreased macrophage recruitment to the spleen and the peritoneal cavity during pristane-induced inflammation...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29201922/immunization-with-bivalent-flagellin-protects-mice-against-fatal-pseudomonas-aeruginosa-pneumonia
#5
Bahador Behrouz, Farhad B Hashemi, Mohammad Javad Fatemi, Sara Naghavi, Gholamreza Irajian, Raheleh Halabian, Abbas Ali Imani Fooladi
Pseudomonas aeruginosa lung infections present a major challenge to healthcare systems worldwide because they are commonly associated with high morbidity and mortality. Here, we demonstrate the protective efficacy of type a and b flagellins (bivalent flagellin) against acute fatal pneumonia in mice. Mice immunized intranasally with a bivalent flagellin vaccine were challenged by different flagellated strains of P. aeruginosa in an acute pneumonia model. Besides the protective effect of the vaccine, we further measured the host innate and cellular immunity responses...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29181417/toll-like-receptor-ligand-induced-liver-injury-in-d-galactosamine-sensitized-mice-differences-between-tlr7-8-and-tlr9-ligands-cytokine-patterns-and-cross-tolerance-induction-by-tlr2-ligand-pretreatment
#6
Reiko Seki
Administration of Toll-like receptor ligands (TLRLs) is known to cause liver injury in D-galN-sensitized mice. In the present study, we aimed to complement preceding reports on the TLRL/D-galN system by analyzing comparisons among TLRLs, mouse strain dependence, effects on serum levels of cytokines, and effects of sequential administrations of different TLRLs. In a preliminary set of analyses, we first confirmed that liver failure can be induced by diverse TLRLs, including LTA and R848 in combination with D-galN...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29181416/cd80-expressed-by-cd8-t-cells-contributes-to-pd-l1-induced-apoptosis-of-activated-cd8-t-cells
#7
Meagan R Rollins, Rachel M Gibbons Johnson
Tumor cells are capable of limiting antitumor CD8+ T cell responses through their cell surface expression of PD-L1. In addition to PD-1 expressed by CD8+ T cells, PD-L1 also binds to CD80 expressed by CD8+ T cells. The influence of the PD-L1/CD80 interaction on CD8+ T cell function has not been fully characterized, so we sought to investigate the impact of the PD-L1/CD80 interaction on PD-L1-induced apoptosis of activated CD8+ T cells. We found that CD8+ T cells that lacked CD80 expression got activated to the same extent as wild-type CD8+ T cells, but when cultured with anti-CD3 and PD-L1/Fc protein, activated CD8+ T cells that lacked CD80 expression survived better than activated wild-type CD8+ T cells...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29181415/endothelial-stat3-modulates-protective-mechanisms-in-a-mouse-ischemia-reperfusion-model-of-acute-kidney-injury
#8
Shataakshi Dube, Tejasvi Matam, Jessica Yen, Henry E Mang, Pierre C Dagher, Takashi Hato, Timothy A Sutton
STAT3 is a transcriptional regulator that plays an important role in coordinating inflammation and immunity. In addition, there is a growing appreciation of the role STAT3 signaling plays in response to organ injury following diverse insults. Acute kidney injury (AKI) from ischemia-reperfusion injury is a common clinical entity with devastating consequences, and the recognition that endothelial alterations contribute to kidney dysfunction in this setting is of growing interest. Consequently, we used a mouse with a genetic deletion of Stat3 restricted to the endothelium to examine the role of STAT3 signaling in the pathophysiology of ischemic AKI...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29164155/new-insights-into-the-mechanisms-of-chinese-herbal-products-on-diabetes-a-focus-on-the-bacteria-mucosal-immunity-inflammation-diabetes-axis
#9
REVIEW
Zezheng Gao, Qingwei Li, Xuemin Wu, Xuemin Zhao, Linhua Zhao, Xiaolin Tong
Diabetes, especially type 2, has been rapidly increasing all over the world. Although many drugs have been developed and used to treat diabetes, side effects and long-term efficacy are of great challenge. Therefore, natural health product and dietary supplements have been of increasing interest alternatively. In this regard, Chinese herbs and herbal products have been considered a rich resource of product development. Although increasing evidence has been produced from various scientific studies, the mechanisms of action are lacking...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29164154/the-application-of-dextran-sedimentation-as-an-initial-step-in-neutrophil-purification-promotes-their-stimulation-due-to-the-presence-of-monocytes
#10
Alex Quach, Antonio Ferrante
The purification of human neutrophils for in vitro studies is challenging as they are easily activated through ex vivo manipulations. The technique of erythrocyte sedimentation combined with density gradient centrifugation remains widely practiced and was the subject of this study. Since in the sedimentation step the leukocytes are incubated with dextran, we have raised the likelihood that cellular activation would occur with mediator release leading to neutrophil activation. By comparing the activity of neutrophils purified from whole blood by the classical 2-step method of dextran sedimentation followed by low-density Ficoll-Hypaque (1...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29159187/the-role-of-costimulation-blockade-in-solid-organ-and-islet-xenotransplantation
#11
REVIEW
Kannan P Samy, James R Butler, Ping Li, David K C Cooper, Burcin Ekser
Pig-to-human xenotransplantation offers a potential bridge to the growing disparity between patients with end-stage organ failure and graft availability. Early studies attempting to overcome cross-species barriers demonstrated robust humoral immune responses to discordant xenoantigens. Recent advances have led to highly efficient and targeted genomic editing, drastically altering the playing field towards rapid production of less immunogenic porcine tissues and even the discussion of human xenotransplantation trials...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29159186/protective-effects-of-ophiocordyceps-lanpingensis-on-glycerol-induced-acute-renal-failure-in-mice
#12
Yanyan Zhang, Yaxi Du, Hong Yu, Yongchun Zhou, Feng Ge
Objective: Oxidative stress and immune response are associated with acute renal failure (ARF). Ophiocordyceps lanpingensis (OL) might be an antioxidant and immunopotentiator. In this study, we explored the protective effects of OL on glycerol-induced ARF. Methods: Male mice were randomly divided into four groups, specifically, glycerol-induced ARF model group, low-dose OL-treated group (1.0 g/kg/d), high-dose OL-treated group (2.0 g/kg/d), and control group...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29124072/decitabine-induced-changes-in-human-myelodysplastic-syndrome-cell-line-skm-1-are-mediated-by-foxo3a-activation
#13
Wen Zeng, Hanjun Dai, Ming Yan, Xiaojun Cai, Hong Luo, Min Ke, Zeming Liu
The epigenetic silencing of tumor suppressor genes in myelodysplastic syndromes (MDS) can potentially confer a growth advantage to individual cellular clones. Currently, the recommended treatment for patients with high-risk MDS is the methylation agent decitabine (DAC), a drug that can induce the reexpression of silenced tumor suppressor genes. We investigated the effects of DAC treatment on the myeloid MDS cell line SKM-1 and investigated the role of FOXO3A, a potentially tumor-suppressive transcription factor, by silencing its expression prior to DAC treatment...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29119120/computer-aided-design-of-an-epitope-based-vaccine-against-epstein-barr-virus
#14
Julio Alonso-Padilla, Esther M Lafuente, Pedro A Reche
Epstein-Barr virus is a very common human virus that infects 90% of human adults. EBV replicates in epithelial and B cells and causes infectious mononucleosis. EBV infection is also linked to various cancers, including Burkitt's lymphoma and nasopharyngeal carcinomas, and autoimmune diseases such as multiple sclerosis. Currently, there are no effective drugs or vaccines to treat or prevent EBV infection. Herein, we applied a computer-aided strategy to design a prophylactic epitope vaccine ensemble from experimentally defined T and B cell epitopes...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29119119/an-exploration-of-the-impact-of-anticentromere-antibody-on-early-stage-embryo
#15
Ying Ying, Xi Guo, Yiping Zhong, Canquan Zhou
Background: Previously, we found women with positive anticentromere antibody showed impaired potential of oocyte maturation and embryo cleavage; the possible mechanism behind this phenomenon was still unknown. Objective: Thus, the present study aimed to preliminarily explore whether ACA could penetrate into the living embryos and impair their developmental potential via in vitro coculture with mouse embryos. Methods: Mouse embryos were collected and used for in vitro culture with polyclonal anticentromere protein A (CENP-A) antibody; then, immunofluorescence assay was performed to determine the penetration of antibody into embryos, and embryo development potential was observed...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29109964/immunotherapy-as-a-promising-treatment-for-prostate-cancer-a-systematic-review
#16
REVIEW
Marlena Janiczek, Łukasz Szylberg, Anna Kasperska, Adam Kowalewski, Martyna Parol, Paulina Antosik, Barbara Radecka, Andrzej Marszałek
Prostate cancer treatment is currently based on surgical removal, radiotherapy, and hormone therapy. In recent years, another therapeutic method has emerged-immunological treatment. Immunotherapy modulates and strengthens one's immune responses against cancer. Neoplastic cells naturally escape from the control of the immune system, and the main goal of immune therapy is to bring the control back. Satisfying outcomes after treatment of advanced melanoma and lung cancer suggest a great potential of immunotherapy as an approach for other tumors' treatment, especially in patients primarily introduced to palliative care...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29109963/cytokine-profile-of-patients-with-allergic-rhinitis-caused-by-pollen-mite-and-microbial-allergen-sensitization
#17
Yury A Tyurin, Svetlana A Lissovskaya, Rustem S Fassahov, Ilshat G Mustafin, Anton F Shamsutdinov, Marina A Shilova, Albert A Rizvanov
Allergic rhinitis (AR) is especially prevalent among the population of large cities. Immunologically, the airway epithelium is a region where the population of allergen-presenting cells concentrates. These cells actively express a group of receptors of the innate immune system. A specific cytokine profile is its representation. The study was aimed at evaluating the cytokine profile in patients with seasonal and perennial allergic rhinitis. The cytokine profile of nasal secretion and blood serum of 44 patients with AR was studied...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29104875/a-novel-system-for-the-quantification-of-the-adcc-activity-of-therapeutic-antibodies
#18
Christophe Lallemand, Feifei Liang, Flore Staub, Maud Simansour, Benoit Vallette, Lue Huang, Rosa Ferrando-Miguel, Michael G Tovey
Novel ADCC effector cells expressing the V-variant or F-variant of FcγRIIIa (CD16a) and firefly luciferase under the control of a chimeric promoter incorporating recognition sequences for the principal transcription factors involved in FcγRIIIa signal transduction, together with novel target cells overexpressing a constant high level of the specific antigen recognized by rituximab, trastuzumab, cetuximab, infliximab, adalimumab, or etanercept, confer improved sensitivity, specificity, and dynamic range in an ADCC assay relative to effector cells expressing a NFAT-regulated reporter gene and wild-type target cells...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29094052/maternal-and-perinatal-outcome-in-women-with-systemic-lupus-erythematosus-a-retrospective-bicenter-cohort-study
#19
Sylvia J Kroese, Carolien N H Abheiden, Birgit S Blomjous, Jacob M van Laar, Ronald W H M Derksen, Irene E M Bultink, Alexandre E Voskuyl, A Titia Lely, Marjon A de Boer, Johanna I P de Vries, Ruth D E Fritsch-Stork
Objective: To investigate disease activity around and during pregnancy and pregnancy outcome in women with systemic lupus erythematosus (SLE) considering antiphospholipid antibody status. Moreover, differences between first and consecutive pregnancies were examined. Methods: Pregnancies > 16 weeks gestation of SLE patients receiving joint care from rheumatologists and gynecologists in two tertiary centers in the Netherlands between 2000 and 2015 were included...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29085843/the-hydroalcoholic-extract-obtained-from-mentha-piperita-l-leaves-attenuates-oxidative-stress-and-improves-survival-in-lipopolysaccharide-treated-macrophages
#20
Mariana Oliveira Arruda, Saulo José Figueiredo Mendes, Simone Aparecida Teixeira, Ludmilla Santos Silva de Mesquita, Maria Nilce de Sousa Ribeiro, Stanley de Sousa Lima Galvão, Marcelo Nicolás Muscará, Elizabeth Soares Fernandes, Valério Monteiro-Neto
Mentha piperita L. (peppermint) possesses antimicrobial properties, but little is known of its ability to modulate macrophages. Macrophages are essential in bacterial infection control due to their antimicrobial functions and ability to link the innate and adaptive immune responses. We evaluated the effects of the peppermint leaf hydroalcoholic extract (LHAE) on cultured murine peritoneal macrophages stimulated or not with lipopolysaccharide (LPS) in vitro. Vehicle-treated cells were used as controls. The constituents of the extract were also identified...
2017: Journal of Immunology Research
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