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https://www.readbyqxmd.com/read/27914091/toward-clinical-use-of-the-igg-specific-enzymes-ides-and-endos-against-antibody-mediated-diseases
#1
Mattias Collin, Lars Björck
The endoglycosidase EndoS and the protease IdeS from the human pathogen Streptococcus pyogenes are immunomodulating enzymes hydrolyzing human IgG. IdeS cleaves IgG in the lower hinge region, while EndoS hydrolyzes the conserved N-linked glycan in the Fc region. Both enzymes are remarkably specific for human IgG that after hydrolysis loses most of its effector functions, such as binding to leukocytes and complement activation, all contributing to bacterial evasion of adaptive immunity. However, taken out of their infectious context, we and others have shown that IdeS and EndoS can alleviate autoimmune disease in a number of animal models of antibody-mediated disorders...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27914008/igf1r-dental-pulp-stem-cells-enhanced-neuroplasticity-in-hypoxia-ischemia-model
#2
Hsiao-Yu Chiu, Chen-Huan Lin, Chung Y Hsu, John Yu, Chia-Hung Hsieh, Woei-Cherng Shyu
Until now, the surface markers of multipotent mesenchymal stem cells (MSCs) had not been fully identified. Here, we found that the IGF1 receptor (IGF1R), regarded as a pluripotent marker of embryonic stem cells (ESCs), was also expressed in human dental pulp derived-mesenchymal stem cells (hDSCs), which displayed a potential for both self-renewal and multipotency. hDSC-secreted IGF1 interacted with IGF1R through an autocrine signaling pathway to maintain this self-renewal and proliferation potential. Stereotaxic implantation of immunosorted IGF1R(+) hDSCs in rats with neonatal hypoxia-ischemia (NHI) promoted neuroplasticity, improving the neurological outcome by increasing expression of the anti-apoptotic protein Bcl-2, which enhanced both neurogenesis and angiogenesis...
December 2, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27912948/therapeutic-efficacy-of-traditional-chinese-medicine-kuan-sin-yin-in-patients-undergoing-chemotherapy-for-advanced-colon-cancer-a-controlled-trial
#3
Tsai-Ju Chien, Chia-Yu Liu, Ruey-Hwa Lu, Chin-Wei Kuo, Yang-Chao Lin, Chung-Hua Hsu
BACKGROUND: Traditional Chinese Medicine (TCM) has been used increasingly as complementary medicine in cancer care. Kuan-Sin-Yin (KSY) is a TCM decoction containing seven herbs known to cause immunomodulation or anticancer activity, and which are associated with the TCM concept of Qi and energy supply. Kuan-Sin-Yin has cytostatic effects on cancer cells in animal models. OBJECTIVE: The aim of this study is to evaluate the level of improvement in meridian energy and heart-rate variability (HRV) and to assess whether these observations are compatible with TCM theory...
December 2016: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/27912745/ganoderma-lucidum-beta-1-3-1-6-glucan-as-an-immunomodulator-in-inflammation-induced-by-a-high-cholesterol-diet
#4
Yu-Sheng Wu, Shu-Ying Ho, Fan-Hua Nan, Shiu-Nan Chen
BACKGROUND: Binding of beta 1,3/1,6 glucan of Ganoderma lucidum (G. lucidum) with the receptor results in a series of signal transfers (signalling cascades), which activates the transcription factors for regulating inflammation. Excess cholesterol intake leads to an increase in the distance between fat cells and capillaries, which may cause hypoxia in the fat tissue of obese mice. This hypoxia induces the death of fat cells, resulting in the inflammation of adipose tissue or an increase in the inflammatory gene expression associated with obesity...
December 3, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27911976/demographic-and-clinical-characteristics-of-a-predominantly-hispanic-population-with-inflammatory-bowel-disease-on-the-us-mexico-border
#5
Antonio Mendoza Ladd, Yi Jia, Christine Yu, Sherif Elhanafi, Alok Dwivedi, Jiayang Liu, Giangqing Song, Mark Hall, Marc J Zuckerman
OBJECTIVES: Information regarding Hispanics with inflammatory bowel disease (IBD) is scarce. In this study we aimed to describe a predominantly Hispanic population with IBD in a city located along the US-Mexico border and to identify clinical or demographic differences between Hispanics and non-Hispanics. METHODS: Retrospective cohort analysis of patients with IBD between 2003 and 2013 at a tertiary care center. Information collected included age, sex, ethnicity, diagnosis, diagnosis status (new vs old), endoscopic extent of disease (EOD), extraintestinal manifestations, medical treatment, and surgeries performed...
December 2016: Southern Medical Journal
https://www.readbyqxmd.com/read/27910914/in-vivo-stepwise-immunomodulation-using-chitosan-nanoparticles-as-a-platform-nanotechnology-for-cancer-immunotherapy
#6
Hee Dong Han, Yeongseon Byeon, Jong-Hwa Jang, Hat Nim Jeon, Ga Hee Kim, Min Gi Kim, Chan-Gi Pack, Tae Heung Kang, In Duk Jung, Yong Taik Lim, Young Joo Lee, Jeong-Won Lee, Byung Cheol Shin, Hyung Jun Ahn, Anil K Sood, Yeong-Min Park
Dentritic cell (DC)-based cancer immunotherapy faces challenges in both efficacy and practicality. However, DC-based vaccination requires multiple injections and elaborates ex vivo manipulation, which substantially limits their use. Therefore, we sought to develop a chitosan nanoparticle (CH-NP)-based platform for the next generation of vaccines to bypass the ex vivo manipulation and induce immune responses via active delivery of polyinosinic-polycytidylic acid sodium salt (poly I:C) to target Toll-like receptor 3 (TLR3) in endosomes...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27910760/immunomodulation-effect-of-aqueous-extract-of-the-artist-s-conk-medicinal-mushroom-ganoderma-applanatum-agaricomycetes-on-the-rainbow-trout-oncorhynchus-mykiss
#7
Azadeh Manayi, Mahdi Vazirian, Fereshteh Hassan Zade, Akram Tehranifard
It is well known that innate immunity in fish can be activated by many synthetic and natural immunos-timulants; several natural substances induced immunity in fish in previous surveys. This study discussed data regarding the effect of Ganoderma applanatum aqueous extract on the defense mechanisms of rainbow trout in feeding trials. Fish were fed 250, 500, and 1000 mg extract/kg diet 4 times daily. Growth, humoral parameters, lysozyme activity, and serum protein concentrations were assessed after a period of 45 days...
2016: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/27910149/editorial-adalimumab-or-infliximab-as-monotherapy-or-in-combination-with-an-immunomodulator-in-the-treatment-of-crohn-s-disease
#8
EDITORIAL
B Christensen, M P Sparrow
No abstract text is available yet for this article.
January 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27909934/current-achievements-and-future-perspectives-of-metronomic-chemotherapy
#9
REVIEW
Adriana Romiti, Rosa Falcone, Michela Roberto, Paolo Marchetti
In recent years, many anticancer drugs have been tested at metronomic dosages for a variety of tumours. Mechanisms of action attributed to metronomic chemotherapy (MCT) include antiangiogenesis, immunomodulation, direct inhibition of tumour growth, effect on tumour initiating cells and the modulation of clonal evolution. An active clinical research, aimed at testing MCT in several cancers, has been conducted over the past 15 years. However, because the majority of available results come from earlier phase II studies, mainly performed in the area of breast cancer (BC), it is clear that there are areas still to be investigated...
December 1, 2016: Investigational New Drugs
https://www.readbyqxmd.com/read/27907166/vaccinia-virus-protein-c6-inhibits-type-i-ifn-signalling-in-the-nucleus-and-binds-to-the-transactivation-domain-of-stat2
#10
Jennifer H Stuart, Rebecca P Sumner, Yongxu Lu, Joseph S Snowden, Geoffrey L Smith
The type I interferon (IFN) response is a crucial innate immune signalling pathway required for defense against viral infection. Accordingly, the great majority of mammalian viruses possess means to inhibit this important host immune response. Here we show that vaccinia virus (VACV) strain Western Reserve protein C6, is a dual function protein that inhibits the cellular response to type I IFNs in addition to its published function as an inhibitor of IRF-3 activation, thereby restricting type I IFN production from infected cells...
December 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27907087/prenylated-polyphenols-from-clusiaceae-and-calophyllaceae-with-immunomodulatory-activity-on-endothelial-cells
#11
Caroline Rouger, Sylvain Pagie, Séverine Derbré, Anne-Marie Le Ray, Pascal Richomme, Béatrice Charreau
Endothelial cells (ECs) are key players in inflammation and immune responses involved in numerous pathologies. Although attempts were experimentally undertaken to prevent and control EC activation, drug leads and probes still remain necessary. Natural products (NPs) from Clusiaceous and Calophyllaceous plants were previously reported as potential candidates to prevent endothelial dysfunction. The present study aimed to identify more precisely the molecular scaffolds that could limit EC activation. Here, 13 polyphenols belonging to 5 different chemical types of secondary metabolites (i...
2016: PloS One
https://www.readbyqxmd.com/read/27904691/implantation-of-placenta-derived-mesenchymal-stem-cells-accelerates-murine-dermal-wound-closure-through-immunomodulation
#12
Haifeng Wang, Lianyu Chen, Yang Liu, Bangzhen Luo, Nanzi Xie, Tao Tan, Lige Song, Pei Erli, Ming Luo
BACKGROUND: Diabetic foot ulcer (DFU) is a major complication of diabetes mellitus. Although previous studies have established that inflammation, ischemia and neuropathy contribute to the development of DFU, it is still an unmet medical need due to lack knowledge of cellular and molecular mechanisms associated with DFU. In the present study, we tested our hypothesis that subcutaneous application of human placental mesenchymal stem cells (PMSCs) can accelerate diabetic dermal wound healing by modulating immunoresponse...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27903800/genetic-variability-of-myxoma-virus-genomes
#13
Christoph Braun, Andrea Thürmer, Rolf Daniel, Anne-Kathrin Schultz, Ingo Bulla, Horst Schirrmeier, Dietmar Mayer, Andreas Neubert, Claus-Peter Czerny
: Myxomatosis is a recurrent problem on rabbit farms throughout Europe despite the success of vaccines. To identify gene variations of field and vaccine strains that may be responsible for changes in virulence, immunomodulation, and immunoprotection, the genomes of 6 Myxoma virus strains (MYXV) were sequenced: German field isolates Munich-1, FLI-H, 2604, 3207, vaccine strain MAV, and challenge strain ZA. The analyzed genomes ranged from 147.6 kb (strain MAV) to 161.8 kb (strain 3207) in size...
November 30, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27903635/bacterial-polysaccharide-specificity-of-the-pattern-recognition-receptor-langerin-is-highly-species-dependent
#14
Jonas Hanske, Jessica Schulze, Jonas Aretz, Ryan McBride, Bernhard Loll, Henrik Schmidt, Yuriy Knirel, Wolfgang Rabsch, Markus C Wahl, James C Paulson, Christoph Rademacher
The recognition of pathogen surface polysaccharides by glycan-binding proteins is a cornerstone of innate host defense. Many members of the C-type lectin receptor family serve as pattern recognition receptors facilitating pathogen uptake, antigen processing, and immunomodulation. Despite the high evolutionary pressure in host-pathogen interactions, it is still widely assumed that genetic homology conveys similar specificities. Here, we investigate the ligand specificities of the human and murine forms of the myeloid C-type lectin receptor Langerin for simple and complex ligands augmented by structural insight on murine Langerin...
November 30, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27903221/in-vitro-generated-mesenchymal-stem-cells-suitable-tools-to-target-insulin-dependent-diabetes-mellitus
#15
Shruti D Dave, Patel C N, Patel J V, Thakkar U G
A synergy of a pre-accumulated genes with an autoimmunity advancing to slow abolition of pancreatic beta-cells causes insulin deficiency and results enrooting insulin dependent diabetes mellitus (IDDM). As per WHO data worldwide about 150 million people are diabetic and the number may rise to more than double by the year 2025. Any absolute cure for IDDM is not available yet, and one of the credible advent in the field include cell-based therapy. At this conjecture, mesenchymal stem cells (MSC) seems to have a specific and beneficial characteristics due to their in vivo as well as in vitro potential to mimic a pancreatic endocrine phenotype and immune-regulatory actions...
November 21, 2016: Current Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27900038/antitumor-effects-and-mechanisms-of-ganoderma-extracts-and-spores-oil
#16
Chun Chen, Peng Li, Ye Li, Guan Yao, Jian-Hua Xu
Ganoderma lucidum is a popular herbal medicine used in China to promote health. Modern studies have disclosed that the active ingredients of Ganoderma can exhibit several effects, including antitumor effects and immunomodulation. The present study evaluated the antitumor effects of self-prepared Ganoderma extracts and spores oil, and investigated the possible underlying mechanisms by observing the effects of the extracts and oil on topoisomerases and the cell cycle. The results showed that Ganoderma extracts and spores oil presented dose-dependent inhibitory effects on tumor cells...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27899808/autoimmunity-to-hsp60-during-diet-induced-obesity-in-mice
#17
M E Şelli, G Wick, D C Wraith, A C Newby
Adaptive immunity has been implicated in adipose tissue inflammation, obesity and its adverse metabolic consequences. No obesity-related autoantigen has yet been identified, although heat shock protein 60 (HSP60) has been implicated in other autoimmune diseases. We investigated whether feeding a high fat diet to C57BL/6J mice would cause autoimmunity to HSP60 and whether immunomodulation with peptides from HSP60 would reverse the resulting obesity or metabolic dysfunction. Obese mice had higher circulating levels of HSP60 associated with increased T-lymphocyte proliferation responses and the emergence of circulating IgG1 and IgG2c antibody levels against HSP60...
November 30, 2016: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/27899095/effects-of-the-ayurved-siriraj-wattana-recipe-on-functional-and-phenotypic-characterization-of-cytokine-induced-killer-cells-and-dendritic-cells-in-vitro
#18
Adisak Wongkajornsilp, Nuntarak Numchaisermsuk, Khanit Sa-Ngiamsuntorn, Pravit Akarasereenont, Valla Wamanuttajinda, Kanda Kasetsinsombat, Sunisa Duangsa-Ard, Tawee Laohapan, Kittipong Maneechotesuwan
BACKGROUND: Ayurved Siriraj Wattana recipe (AVS073), has been prescribed as tonic, to increase appetite, and for pain relief. It also exhibits antioxidant, anti-inflammatory, immunomodulating and anti-cancer activities. However, the immunomodulatory effects on antigen-presenting cells and effector T cells remained elusive. We thus aimed to study the effects of AVS073 on differentiation, maturation, functions and proportions of CIK cells and monocyte-derived DCs. METHODS: CIK cells and monocyte-derived DCs were treated with AVS073, followed by the assessment of T-helper (Th) phenotypes using real-time RT-PCR and flow cytometry...
November 29, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27895816/clinical-impact-of-chemotherapy-to-improve-tumor-microenvironment-of-pancreatic-cancer
#19
REVIEW
Takahiro Tsuchikawa, Shintaro Takeuchi, Toru Nakamura, Toshiaki Shichinohe, Satoshi Hirano
A perioperative multimodal strategy including combination chemotherapy and radiotherapy, in addition to surgical resection, has been acknowledged to improve patient prognosis. However chemotherapy has not been actively applied as an immunomodulating modality because of concerns about various immunosuppressive effects. It has recently been shown that certain chemotherapeutic agents could modify tumor microenvironment and host immune responses through several underlying mechanisms such as immunogenic cell death, local T-cell infiltration and also the eradication of immune-suppressing regulatory cells such as regulatory T cells (Tregs) and myeloid-derived suppressor cells...
November 15, 2016: World Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/27895640/%C3%AF-3-polyunsaturated-fatty-acids-as-immunomodulators-in-colorectal-cancer-new-potential-role-in-adjuvant-therapies
#20
REVIEW
Stefania Miccadei, Roberta Masella, Anna Maria Mileo, Sandra Gessani
Diet composition may affect the onset and progression of chronic degenerative diseases, including cancer, whose pathogenesis relies on inflammatory processes. Growing evidence indicates that diet and its components critically contribute to human health, affecting the immune system, secretion of adipokines, and metabolic pathways. Colorectal cancer (CRC) is one of the leading causes of death worldwide. Antineoplastic drugs are widely used for CRC treatment, but drug resistance and/or off-target toxicity limit their efficacy...
2016: Frontiers in Immunology
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