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https://www.readbyqxmd.com/read/29913426/heat-treatment-improves-the-immunomodulatory-and-cellular-antioxidant-behavior-of-a-natural-flavanone-eriodictyol
#1
Rihab Khlifi, Zaineb Dhaouefi, Mouna Maatouk, Aicha Sassi, Najet Boudhiba, Irina Ioannou, Kamel Ghedira, Leila Chekir-Ghedira, Soumaya Kilani-Jaziri
Plants and natural molecules are generally consumed not in raw state but after different processing conditions (heating, mechanical agitation or cooking). The understanding of the chemistry and biological outcome of thermal treatment is still scarce. In the current study, Eriodictyol, a natural flavanone, has undergone heat treatment, generating hence three different products ((3-(3,4-dihydroxyphenyl)-3-hydroxypropanoic acid, (3-(3,4-dihydroxyphenyl) propanal) and an unidentified component). The consequences of aforementioned treatment on the immunomodulatory behavior of resulted molecules were evaluated...
June 15, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29913309/the-causes-and-consequences-of-variation-in-human-cytokine-production-in-health
#2
REVIEW
Melanie Schirmer, Vinod Kumar, Mihai G Netea, Ramnik J Xavier
Cytokines are important cell-signaling molecules that activate and modulate immune responses. Major factors influencing cytokine variation in healthy individuals are host genetics, non-heritable factors and the microbiome. Genetic variation accounts for a significant part of heterogeneity in cytokine production by peripheral blood mononuclear cells. Variation in cytokines such as IL-6 and IL-6Ra is strongly influenced by heritability, suggesting an evolutionarily pressure for their genetic regulation that potentially contributes to differences in immune responsiveness between human populations...
June 15, 2018: Current Opinion in Immunology
https://www.readbyqxmd.com/read/29913265/dipeptidylpeptidase-iv-of-streptococcus-suis-degrades-the-porcine-antimicrobial-peptide-pr-39-and-neutralizes-its-biological-properties
#3
Geneviève LeBel, Katy Vaillancourt, Li Yi, Marcelo Gottschalk, Daniel Grenier
Streptococcus suis is a major swine pathogen causing pathologies such as meningitis, sepsis, endocarditis, and arthritis. Several surface-bound and secreted proteases produced by S. suis have been identified and proposed as virulence factors. PR-39 is a proline/arginine-rich antimicrobial peptide produced by porcine leucocytes. In addition to play a role in innate immunity, this peptide possesses immunomodulatory properties. In this study, we hypothesized that proteases produced by S. suis inactivate PR-39...
June 15, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29912964/rd5-mediated-lack-of-pe_pgrs-and-ppe-mptr-export-in-bcg-vaccine-strains-results-in-strong-reduction-of-antigenic-repertoire-but-little-impact-on-protection
#4
Louis S Ates, Fadel Sayes, Wafa Frigui, Roy Ummels, Merel P M Damen, Daria Bottai, Marcel A Behr, Jeroen W J van Heijst, Wilbert Bitter, Laleh Majlessi, Roland Brosch
Tuberculosis is the deadliest infectious disease worldwide. Although the BCG vaccine is widely used, it does not efficiently protect against pulmonary tuberculosis and an improved tuberculosis vaccine is therefore urgently needed. Mycobacterium tuberculosis uses different ESX/Type VII secretion (T7S) systems to transport proteins important for virulence and host immune responses. We recently reported that secretion of T7S substrates belonging to the mycobacteria-specific Pro-Glu (PE) and Pro-Pro-Glu (PPE) proteins of the PGRS (polymorphic GC-rich sequences) and MPTR (major polymorphic tandem repeat) subfamilies required both a functional ESX-5 system and a functional PPE38/71 protein for secretion...
June 18, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29912725/tumor-regression-and-cure-depends-on-sustained-th1-responses
#5
Min Dai, Ingegerd Hellstrom, Yuen Y Yip, Hans Olov Sjögren, Karl Erik Hellstrom
While immunomodulatory monoclonal antibodies (mAbs) have therapeutic efficacy against many tumors, few patients are cured. Attempting to improve their therapeutic efficacy we have applied the TC1 mouse lung carcinoma model and injected established subcutaneous tumors intratumorally with 3 weekly doses of various combinations of mAbs. Combinations of mAbs to CTLA4/PD1/CD137 (the 3 mAb combination) and to CTLA4/PD1/CD137/CD19 (the 4 mAb combination) were most efficacious to induce complete regression of both the injected tumor and an untreated tumor in the same mouse...
June 15, 2018: Journal of Immunotherapy
https://www.readbyqxmd.com/read/29911725/tailoring-inorganic-nanoadjuvants-towards-next-generation-vaccines
#6
REVIEW
Xia Li, Xiupeng Wang, Atsuo Ito
Vaccines, one of the most effective and powerful public health measures, have saved countless lives over the past century and still have a tremendous global impact. As an indispensable component of modern vaccines, adjuvants play a critical role in strengthening and/or shaping a specific immune response against infectious diseases as well as malignancies. The application of nanotechnology provides the possibility of precisely tailoring the building blocks of nanoadjuvants towards modern vaccines with the desired immune response...
June 18, 2018: Chemical Society Reviews
https://www.readbyqxmd.com/read/29911195/simple-glycolipids-of-microbes-chemistry-biological-activity-and-metabolic-engineering
#7
REVIEW
Ahmad Mohammad Abdel-Mawgoud, Gregory Stephanopoulos
Glycosylated lipids (GLs) are added-value lipid derivatives of great potential. Besides their interesting surface activities that qualify many of them to act as excellent ecological detergents, they have diverse biological activities with promising biomedical and cosmeceutical applications. Glycolipids, especially those of microbial origin, have interesting antimicrobial, anticancer, antiparasitic as well as immunomodulatory activities. Nonetheless, GLs are hardly accessing the market because of their high cost of production...
March 2018: Synthetic and Systems Biotechnology
https://www.readbyqxmd.com/read/29910819/decitabine-enhances-v%C3%AE-9v%C3%AE-2-t-cell-mediated-cytotoxic-effects-on-osteosarcoma-cells-via-the-nkg2dl-nkg2d-axis
#8
Zhan Wang, Zenan Wang, Shu Li, Binghao Li, Lingling Sun, Hengyuan Li, Peng Lin, Shengdong Wang, Wangsiyuan Teng, Xingzhi Zhou, Zhaoming Ye
γδ T cell-based immunotherapy for osteosarcoma (OS) has shown limited success thus far. DNA-demethylating agents not only induce tumor cell death but also have an immunomodulatory function. In this study, we have assessed the potential benefit of combining decitabine (DAC, a DNA demethylation drug) and γδ T cells for OS immunotherapy. DAC increased the expression of natural killer group 2D (NKG2D) ligands (NKG2DLs), including major histocompatibility complex class I-related chains B (MICB) and UL16-binding protein 1 (ULBP1), on the OS cell surface, making the cells more sensitive to recognition and destruction by cytotoxic γδ T cells...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29910738/immunomodulatory-effects-of-dietary-seaweeds-in-lps-challenged-atlantic-salmon-salmo-salar-as-determined-by-deep-rna-sequencing-of-the-head-kidney-transcriptome
#9
Arjan P Palstra, Jeroen Kals, Ainhoa Blanco Garcia, Ron P Dirks, Marnix Poelman
Seaweeds may represent immuno-stimulants that could be used as health-promoting fish feed components. This study was performed to gain insights into the immunomodulatory effects of dietary seaweeds in Atlantic salmon. Specifically tested were 10% inclusion levels of Laminaria digitata (SW1) and a commercial blend of seaweeds (Oceanfeed® ) (SW2) against a fishmeal based control diet (FMC). Differences between groups were assessed in growth, feed conversion ratio and blood parameters hematocrit and hemoglobin...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29910685/activation-of-central-alpha-7-nicotinic-acetylcholine-receptor-reverses-suppressed-immune-function-of-t-lymphocytes-and-protects-against-sepsis-lethality
#10
Chao Ren, Xiu-Hua Li, Shi-Bin Wang, Li-Xue Wang, Ning Dong, Yao Wu, Yong-Ming Yao
Sepsis remains the leading cause of high mortality and huge financial burden in intensive care units (ICU), but with scarce effective treatments due to refractory multiple organ dysfunction and persistent immunosuppression. Treatments that aim at modulating immune function and attenuating multiple organ injury will certainly benefit septic cases. Alpha 7 nicotinic acetylcholine receptor (α7nAchR) has been reported with potent immunomodulatory properties in various diseases as the essential mediator of the cholinergic anti-inflammatory pathway (CAP)...
2018: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/29908226/visfatin-alters-the-cytokine-and-matrix-degrading-enzyme-profile-during-osteogenic-and-adipogenic-msc-differentiation
#11
Lali Tsiklauri, Janina Werner, Marian Kampschulte, Klaus W Frommer, Lucija Berninger, Martina Irrgang, Kristina Glenske, Dirk Hose, Thaqif El Khassawna, Jörn Pons-Kühnemann, Stefan Rehart, Sabine Wenisch, Ulf Müller-Ladner, Elena Neumann
OBJECTIVES: Age-related bone loss is associated with bone marrow adiposity. Adipokines (e.g. visfatin, resistin, leptin) are adipocyte-derived factors with immunomodulatory properties and might influence differentiation of bone marrow-derived mesenchymal stem cells (MSC) in osteoarthritis (OA) and osteoporosis. Thus, the presence of adipokines and MMPs in bone marrow and their effects on MSC differentiation were analyzed. METHODS: MSC and RNA were isolated from femoral heads after hip replacement surgery of OA or osteoporotic femoral neck fracture (FF) patients...
June 13, 2018: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29908080/genotypes-phenotypes-and-treatment-with-immunomodulators-in-the-rheumatic-diseases
#12
REVIEW
Ronald F van Vollenhoven
The autoimmune rheumatological diseases rheumatoid arthritis (RA), spondyloarthritis (SpA) and systemic lupus erythematosus (SLE) are treated with conventional immunosuppressive agents and with modern biological immunomodulators. The latter group of medications have brought about a major change in our ability to control RA and SpA, with more modest results for SLE. The biologicals are very specific in their mechanisms of action, targeting one specific cytokine or one particular cellular marker. Because of this, their efficacy can readily be linked to a single immunomodulatory mechanism...
June 16, 2018: Journal of Internal Medicine
https://www.readbyqxmd.com/read/29907806/final-outcomes-of-escalated-melphalan-280-mg-m-2-with-amifostine-cytoprotection-followed-autologous-hematopoietic-stem-cell-transplantation-for-multiple-myeloma-high-cr-and-vgpr-rates-do-not-translate-into-improved-survival
#13
Parameswaran Hari, Donna E Reece, Jasleen Randhawa, Neal Flomenberg, Dianna S Howard, Ashrof Z Badros, Aaron P Rapoport, Barry R Meisenberg, Joanne Filicko-Ohara, Gordon L Phillips, David H Vesole
The most common preparative regimen for autologous transplantation (ASCT) in myeloma (MM) consists of melphalan 200 mg/m2 (MEL 200). Higher doses of melphalan 220-260 mg/m2 , although relatively well tolerated, have not shown significant improvement in clinical outcomes. Several approaches have been pursued in the past to improve CR rates, including poly-chemotherapy preparative regimens, tandem ASCT, consolidation, and/or maintenance therapy. Since there is a steep dose-response effect for intravenous melphalan, we evaluated an alternative single ASCT strategy using higher-dose melphalan at 280 mg/m2 (MEL 280) with amifostine as a cytoprotectant as the maximum tolerated dose determined in an earlier phase I dose escalation trial...
June 15, 2018: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/29907739/nanoscale-metal-organic-frameworks-enhance-radiotherapy-to-potentiate-checkpoint-blockade-immunotherapy
#14
Kaiyuan Ni, Guangxu Lan, Christina Chan, Bryan Quigley, Kuangda Lu, Theint Aung, Nining Guo, Patrick La Riviere, Ralph R Weichselbaum, Wenbin Lin
Checkpoint blockade immunotherapy enhances systemic antitumor immune response by targeting T cell inhibitory pathways; however, inadequate T cell infiltration has limited its anticancer efficacy. Radiotherapy (RT) has local immunomodulatory effects that can alter the microenvironment of irradiated tumors to synergize with immune checkpoint blockade. However, even with high doses of radiation, RT has rarely elicited systemic immune responses. Herein, we report the design of two porous Hf-based nanoscale metal-organic frameworks (nMOFs) as highly effective radioenhancers that significantly outperform HfO2 , a clinically investigated radioenhancer in vitro and in vivo...
June 15, 2018: Nature Communications
https://www.readbyqxmd.com/read/29906528/cd300c-co-stimulates-ige-mediated-basophils-activation-and-its-expression-is-increased-in-cow%C3%A2-s-milk-allergy
#15
Olatz Zenarruzabeitia, Joana Vitallé, Iñigo Terrén, Ane Orrantia, Itziar Astigarraga, Leire Dopazo, Carlos Gonzalez, Laura Santos-Díez, Carlos Tutau, Pedro M Gamboa, Agurtzane Bilbao, Francisco Borrego
BACKGROUND: Basophils express high-affinity IgE receptors (FcεRI), which play an essential role in allergic diseases. To design promising immunomodulatory therapies, it is important to characterize new cell surface receptors that modulate immunoglobulin (Ig)E-mediated basophil activation threshold. OBJECTIVES: To analyze the expression of CD300 receptors on human basophils and their implication in IgE-mediated basophil activation processes. METHODS: Blood samples from healthy and cow´s milk allergic patients were collected through the Basque Biobank under an institutional review board-approved protocol...
June 12, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29904716/data-on-elemental-composition-of-the-medicinal-plant-hymenaea-martiana-hayne-jatob%C3%A3
#16
Layza Sá Rocha, Daniel Araújo Gonçalves, Daniela Granja Arakaki, Paula Fabiana Saldanha Tschinkel, Nayara Vieira de Lima, Lincoln Carlos Silva de Oliveira, Rita de Cássia Avellaneda Guimarães, Valter Aragão do Nascimento
This data article provides elemental compositions profile, determined by inductively coupled plasma-optical emission spectrometry (ICP OES), of the medicinal plant Hymeneaea martiana Hayne which belongs of the family Fabaceae (Leguminosae).It is a tree that demonstrates medicinal purposes as antioxidant, immunomodulatory (Boniface et al., 2017) [1], microbial, antiviral, hepatoprotective, gastroprotective (Almeida et al., 2012) [2] and antifungal (Souza et al., 2010) [3].The content of 13 elements (Al, Ca, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, P, S and Zn) in the barks, leaves, tea leaves and bark tea were detected...
August 2018: Data in Brief
https://www.readbyqxmd.com/read/29904430/expression-profile-of-micrornas-following-bone-marrow-derived-mesenchymal-stem-cell-treatment-in-lipopolysaccharide-induced-acute-lung-injury
#17
Joonhong Park, Sikyoung Jeong, Kicheol Park, Keumjin Yang, Soyoung Shin
Immunomodulatory or immunosuppressive properties of bone marrow-derived mesenchymal stem cells (BM-MSCs) facilitate the treatment of acute respiratory distress syndrome and acute lung injury (ALI). Dysregulated miRNA (miRNA or miR) expression associated with the effects of BM-MSCs was assessed in a rat model of lipopolysaccharide (LPS)-induced ALI. The present study performed biochemical tests to assess five analytes, including alanine aminotransferase (ALT), aspartate aminotransferase (AST), lactate, blood urea nitrogen (BUN), and creatinine (CREA)...
June 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29904354/paracrine-anti-inflammatory-effects-of-adipose-tissue-derived-mesenchymal-stem-cells-in-human-monocytes
#18
Maria I Guillén, Julia Platas, María D Pérez Del Caz, Vicente Mirabet, Maria J Alcaraz
The inflammatory process is an essential phenomenon in the induction of immune responses. Monocytes are key effector cells during the inflammatory process. A wide range of evidence indicates that mesenchymal stem cells from adipose tissue (ASC) are endowed with immunomodulatory capacity. However, the interaction between ASC and monocytes in the innate immune response is not well understood. The aim of this work was to investigate the possible paracrine anti-inflammatory effects of ASC in human monocytes. Monocytes were isolated from buffy coats and ASC from fat of non-obese patients...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29904022/designer-oncolytic-adenovirus-coming-of-age
#19
REVIEW
Alexander T Baker, Carmen Aguirre-Hernández, Gunnel Halldén, Alan L Parker
The licensing of talimogene laherparepvec (T-Vec) represented a landmark moment for oncolytic virotherapy, since it provided unequivocal evidence for the long-touted potential of genetically modified replicating viruses as anti-cancer agents. Whilst T-Vec is promising as a locally delivered virotherapy, especially in combination with immune-checkpoint inhibitors, the quest continues for a virus capable of specific tumour cell killing via systemic administration. One candidate is oncolytic adenovirus (Ad); it’s double stranded DNA genome is easily manipulated and a wide range of strategies and technologies have been employed to empower the vector with improved pharmacokinetics and tumour targeting ability...
June 14, 2018: Cancers
https://www.readbyqxmd.com/read/29903027/laquinimod-protects-the-optic-nerve-and-retina-in-an-experimental-autoimmune-encephalomyelitis-model
#20
Anna T Wilmes, Sabrina Reinehr, Sandra Kühn, Xiomara Pedreiturria, Laura Petrikowski, Simon Faissner, Ilya Ayzenberg, Gesa Stute, Ralf Gold, H Burkhard Dick, Ingo Kleiter, Stephanie C Joachim
BACKGROUND: The oral immunomodulatory agent laquinimod is currently evaluated for multiple sclerosis (MS) treatment. Phase II and III studies demonstrated a reduction of degenerative processes. In addition to anti-inflammatory effects, laquinimod might have neuroprotective properties, but its impact on the visual system, which is often affected by MS, is unknown. The aim of our study was to investigate potential protective effects of laquinimod on the optic nerve and retina in an experimental autoimmune encephalomyelitis (EAE) model...
June 14, 2018: Journal of Neuroinflammation
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