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Immune modulation

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https://www.readbyqxmd.com/read/29786066/repeated-social-defeat-induced-neuroinflammation-anxiety-like-behavior-and-resistance-to-fear-extinction-were-attenuated-by-the-cannabinoid-receptor-agonist-win55-212-2
#1
Sabrina Francesca Lisboa, Anzela Niraula, Leonardo Barbosa Resstel, Francisco Silveira Guimaraes, Jonathan P Godbout, John F Sheridan
Psychosocial stress contributes to the development of psychiatric disorders. Repeated social defeat (RSD) is a murine stressor that causes a release of inflammatory monocytes into circulation. Moreover, RSD-induced anxiety-like behavior is dependent on the recruitment of these monocytes to the brain. Activation of the endocannabinoid (ECB) system may modulate both neuroendocrine and inflammatory responses mediated by stress. Therefore, we hypothesized that a cannabinoid receptor agonist would attenuate RSD-induced inflammation, anxiety, and stress sensitization...
April 17, 2018: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29785960/reduction-in-regulatory-t-cells-in-early-pregnancy-causes-uterine-artery-dysfunction-in-mice
#2
Alison S Care, Stephane L Bourque, Jude S Morton, Emma P Hjartarson, Sarah A Robertson, Sandra T Davidge
Preeclampsia, fetal growth restriction, and miscarriage remain important causes of maternal and perinatal morbidity and mortality. These complications are associated with reduced numbers of a specialized T lymphocyte subset called regulatory T cells (Treg cells) in the maternal circulation, decidua, and placenta. Treg cells suppress inflammation and prevent maternal immunity toward the fetus, which expresses foreign paternal alloantigens. Treg cells are demonstrated to contribute to vascular homeostasis, but whether Treg cells influence the vascular adaptations essential for a healthy pregnancy is unknown...
May 21, 2018: Hypertension
https://www.readbyqxmd.com/read/29785904/identification-of-an-immune-modulation-locus-utilising-a-bovine-mammary-gland-infection-challenge-model
#3
Mathew D Littlejohn, Sally-Anne Turner, Caroline G Walker, Sarah D Berry, Kathryn Tiplady, Ric G Sherlock, Greg Sutherland, Simon Swift, Dorian Garrick, S Jane Lacy-Hulbert, Scott McDougall, Richard J Spelman, Russell G Snell, J Eric Hillerton
Inflammation of the mammary gland following bacterial infection, commonly known as mastitis, affects all mammalian species. Although the aetiology and epidemiology of mastitis in the dairy cow are well described, the genetic factors mediating resistance to mammary gland infection are not well known, due in part to the difficulty in obtaining robust phenotypic information from sufficiently large numbers of individuals. To address this problem, an experimental mammary gland infection experiment was undertaken, using a Friesian-Jersey cross breed F2 herd...
May 2018: Journal of Dairy Research
https://www.readbyqxmd.com/read/29785783/silica-gelatin-hybrid-sol-gel-coatings-a-proteomic-study-with-biocompatibility-implications
#4
N Araújo-Gomes, F Romero-Gavilán, I Lara-Sáez, F Elortza, M Azkargorta, I Iloro, M Martínez-Ibañez, J J Martín de Llano, M Gurruchaga, I Goñi, J Suay, A M Sánchez-Pérez
Osseointegration, including the foreign body reaction to biomaterials, is an immune-modulated, multifactorial, and complex healing process in which various cells and mediators are involved. The buildup of the osseointegration process is immunological and inflammation-driven, often triggered by the adsorption of proteins on the surfaces of the biomaterials and complement activation. New strategies for improving osseointegration use coatings as vehicles for osteogenic biomolecules delivery from implants. Natural polymers, such as gelatin, can mimic collagen I and enhance the biocompatibility of a material...
May 21, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29785197/applying-statistical-and-complex-network-methods-to-explore-the-key-signaling-molecules-of-acupuncture-regulating-neuroendocrine-immune-network
#5
Kuo Zhang, Xin-Meng Guo, Ya-Wen Yan, Yang-Yang Liu, Zhi-Fang Xu, Xue Zhao, Jiang Wang, Yi Guo, Kai Li, Sha-Sha Ding
The mechanisms of acupuncture are still unclear. In order to reveal the regulatory effect of manual acupuncture (MA) on the neuroendocrine-immune (NEI) network and identify the key signaling molecules during MA modulating NEI network, we used a rat complete Freund's adjuvant (CFA) model to observe the analgesic and anti-inflammatory effect of MA, and, what is more, we used statistical and complex network methods to analyze the data about the expression of 55 common signaling molecules of NEI network in ST36 (Zusanli) acupoint, and serum and hind foot pad tissue...
2018: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29785006/the-era-of-immunogenomics-immunopharmacogenomics
#6
REVIEW
Makda Zewde, Kazuma Kiyotani, Jae-Hyun Park, Hua Fang, Kai Lee Yap, Poh Yin Yew, Houda Alachkar, Taigo Kato, Tu H Mai, Yuji Ikeda, Tatsuo Matsuda, Xiao Liu, Lili Ren, Boya Deng, Makiko Harada, Yusuke Nakamura
Although germline alterations and somatic mutations in disease cells have been extensively analyzed, molecular changes in immune cells associated with disease conditions have not been characterized in depth. It is clear that our immune system has a critical role in various biological and pathological conditions, such as infectious diseases, autoimmune diseases, drug-induced skin and liver toxicity, food allergy, and rejection of transplanted organs. The recent development of cancer immunotherapies, particularly drugs modulating the immune checkpoint molecules, has clearly demonstrated the importance of host immune cells in cancer treatments...
May 21, 2018: Journal of Human Genetics
https://www.readbyqxmd.com/read/29784996/dual-function-injectable-angiogenic-biomaterial-for-the-repair-of-brain-tissue-following-stroke
#7
Lina R Nih, Shiva Gojgini, S Thomas Carmichael, Tatiana Segura
Stroke is the primary cause of disability due to the brain's limited ability to regenerate damaged tissue. After stroke, an increased inflammatory and immune response coupled with severely limited angiogenesis and neuronal growth results in a stroke cavity devoid of normal brain tissue. In the adult, therapeutic angiogenic materials have been used to repair ischaemic tissues through the formation of vascular networks. However, whether a therapeutic angiogenic material can regenerate brain tissue and promote neural repair is poorly understood...
May 21, 2018: Nature Materials
https://www.readbyqxmd.com/read/29784858/production-of-staphylococcal-complement-inhibitor-scin-and-other-immune-modulators-during-the-early-stages-of-staphylococcus-aureus-biofilm-formation-in-a-mammalian-cell-culture-medium
#8
Andi R Sultan, Jasper W Swierstra, Nicole A Lemmens-den Toom, Susan V Snijders, Silvie Hansenová Maňásková, Annelies Verbon, Willem J B van Wamel
Immune modulators are known to be produced by matured biofilms and during different stages of planktonic growth of Staphylococcus aureus. Little is known about immune modulator production during the early stages of biofilm formation, thus raising the question: how does S. aureus protect itself from the innate immune responses at these stages? Therefore, we determined the production of the following immune modulators: chemotaxis inhibitory protein of staphylococci (CHIPS), staphylococcal complement inhibitor (SCIN), formyl peptide receptor-like 1 inhibitor, gamma-hemolysin component B, leukocidin D, E, and S, staphylococcal superantigen-like protein 1, 3, 5 and 9, and staphylococcal enterotoxin A...
May 21, 2018: Infection and Immunity
https://www.readbyqxmd.com/read/29784798/stabilized-single-injection-inactivated-polio-vaccine-elicits-a-strong-neutralizing-immune-response
#9
Stephany Y Tzeng, Kevin J McHugh, Adam M Behrens, Sviatlana Rose, James L Sugarman, Shiran Ferber, Robert Langer, Ana Jaklenec
Vaccination in the developing world is hampered by limited patient access, which prevents individuals from receiving the multiple injections necessary for protective immunity. Here, we developed an injectable microparticle formulation of the inactivated polio vaccine (IPV) that releases multiple pulses of stable antigen over time. To accomplish this, we established an IPV stabilization strategy using cationic polymers for pH modulation to enhance traditional small-molecule-based stabilization methods. We investigated the mechanism of this strategy and showed that it was broadly applicable to all three antigens in IPV...
May 21, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29784128/immunosurveillance-of-cancer-and-the-heat-shock-protein-cd91-pathway
#10
Robert J Binder
The intracellular functions of heat shock proteins (HSPs) as chaperones of macromolecules are well known. Current observations point to a role of these chaperones in initiating and modulating immune responses to tumors via receptor(s) on dendritic cells. In this article we provide an insight into, and a basis for, the importance of these HSP-mediated immune responses in rejecting nascent and emerging tumors.
May 16, 2018: Cellular Immunology
https://www.readbyqxmd.com/read/29783985/the-doses-of-plasmid-backbone-plays-a-major-role-in-determining-the-hbv-clearance-in-hydrodynamic-injection-mouse-model
#11
Xian Wang, Jianmin Zhu, Yong Zhang, Yue Li, Tai Ma, Qun Li, Jiegou Xu, Long Xu
BACKGROUND: Hepatitis B virus (HBV) chronically infects approximately 350 million people worldwide, causing a major risk of liver disease and hepatocellular carcinoma (HCC). Many mouse models have been tried to establish HBV infection through injection with various HBV-containing plasmids. However, it is not well understood that different plasmids, all of which contain the similar HBV genome, even the same plasmids with different dose, results in opposite immune responses toward HBV. METHODS: In this study, we investigated the role of HBV-containing plasmid backbones and the HBcAg in determining the HBV persistence...
May 21, 2018: Virology Journal
https://www.readbyqxmd.com/read/29783020/immune-modulation-of-a-novel-lipid-soluble-extract-of-pinellia-pedatisecta-schott-in-the-tumor-microenvironment-of-an-hpv-tumor-burdened-mouse-model
#12
Haixia Huang, Mingxing Zhang, Meng Zhang, Jing Peng, Guiling Li, Congjian Xu, Suiqi Gui
ETHNOPHARMACOLOGICAL RELEVANCE: Pinellia pedatisecta Schott extract (PE), a traditional Chinese medicine, has been used to reduce swelling, dry dampness and suppress cervical tumors. AIMS: To evaluate the roles of PE in the regulation of anti-tumor effects and the cellular immune response in the tumor microenvironment. METHODS: The immune microenvironment of HPV+ TC-1 tumors was examined by immunohistochemistry, real-time PCR and flow cytometry...
May 18, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29782315/tlr4-gene-expression-and-pro-inflammatory-cytokines-in-alzheimer-s-disease-and-in-response-to-hippocampal-deafferentation-in-rodents
#13
Justin Miron, Cynthia Picard, Josée Frappier, Doris Dea, Louise Théroux, Judes Poirier
One important aspect in Alzheimer's disease pathology is the presence of chronic inflammation. Considering its role as a key receptor in the microglial innate immune system, TLR4 was shown to regulate the binding and phagocytosis of amyloid plaques by microglia in several mouse models of amyloidosis, as well as the production of pro-inflammatory cytokines. To our knowledge, TLR4 and its association with cytokines have not been thoroughly examined in the brains of subjects affected with Alzheimer's disease. Using quantitative reverse transcription polymerase chain reaction (qRT-PCR) in postmortem human brains, we observed increased expression for the TLR4 and TNF genes (p = 0...
May 16, 2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29782188/an-evaluation-of-nivolumab-for-the-treatment-of-metastatic-renal-cell-carcinoma
#14
Kevin Zarrabi, Shenhong Wu
The treatment paradigm for metastatic renal cell carcinoma (mRCC) has undergone a revolution with the rapid market approval of multiple agents over a three-year period. The immunogenicity of RCC provided the biological rationale to assess the clinical efficacy of nivolumab, an immune checkpoint inhibitor. Nivolumab is approved for second-line treatment after failure of angiogenesis targeted therapy and in combination therapy with ipilimumab for previously untreated intermediate or poor-risk advanced renal cell carcinoma...
May 21, 2018: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/29782055/clinical-and-immunological-effects-of-adsorptive-myeloid-lineage-leukocyte-apheresis-in-patients-with-immune-disorders
#15
REVIEW
Takuro Kanekura
Adsorptive granulocyte and monocyte apheresis (GMA) with the Adacolumn® is an extracorporeal treatment, which uses cellulose acetate (CA) beads as adsorptive leukocytapheresis carriers designed to remove elevated and potentially activated myeloid lineage leukocytes. Reports on the clinical efficacy of GMA in patients with skin lesions have appeared in the published work. Dermatological diseases, which are known to respond to GMA, include pyoderma gangrenosum, skin lesions of Behçet's disease, rheumatoid arthritis, pustular psoriasis, psoriatic arthritis, adult-onset Still's disease, Sweet's syndrome, cutaneous allergic vasculitis and systemic lupus erythematosus rashes...
May 21, 2018: Journal of Dermatology
https://www.readbyqxmd.com/read/29781826/understanding-microbiome-effect-on-immune-checkpoint-inhibition-in-lung-cancer-placing-the-puzzle-pieces-together
#16
Umang Swami, Yousef Zakharia, Jun Zhang
Over the past couple of years, human microbiome has received increasing attention as a regulator and predictor of response to the therapies of various diseases. It is speculated that manipulating gut microbiome can modify response to cancer immunotherapies as well. Through this review, we have critically analyzed our current understanding of gut microbiome as a modulator of immunotherapies in lung cancer, explained conflicting data, evaluated current gaps and extrapolated our present knowledge to generate directions for future investigations...
May 17, 2018: Journal of Immunotherapy
https://www.readbyqxmd.com/read/29781582/sphingosine-1-phosphate-receptor-1-signaling-maintains-endothelial-cell-barrier-function-and-protects-against-immune-complex-induced-vascular-injury
#17
Nathalie Burg, Steven Swendeman, Stefan Worgall, Timothy Hla, Jane E Salmon
OBJECTIVE: Immune complex (IC) deposition activates neutrophils (PMN), increases vascular permeability and leads to organ damage in SLE and RA. The bioactive lipid sphingosine-1-phosphate (S1P), acting via S1P receptor 1 (S1P1 ), is a key regulator of endothelial cell (EC) barrier function. We hypothesized that augmenting EC integrity via S1P1 signaling would attenuate inflammatory injury mediated by ICs. METHODS: In vitro barrier function was assessed in human umbilical vein endothelial cells (HUVECs) by Electric Cell-substrate Impedance Sensing (ECIS)...
May 21, 2018: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29781535/mir-1178-regulates-mycobacterial-survival-and-inflammatory-responses-in-mycobacterium-tuberculosis-infected-macrophages-partly-via-tlr4
#18
Ge Shi, Guofeng Mao, Kejie Xie, Dongdong Wu, Wei Wang
Tuberculosis is chronic respiratory infectious disease and is caused by the infection of Mycobacterium tuberculosis (M.tb). Macrophages play an important role in host immune response against M.tb infection, which is regulated by various factors, including microRNAs (miRNAs). The present study aimed to examine the in vitro functional role of miR-1178 in mycobacterial survival and inflammatory responses induced by M.tb infection in human macrophages. Our results showed that M.tb infection increased the expression of miR-1178 in human macrophages (HTP-1 and U937 cells) in a concentration- and time-dependent manner...
May 21, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29780803/role-of-subclinical-gut-inflammation-in-the-pathogenesis-of-spondyloarthritis
#19
REVIEW
Aroldo Rizzo, Giuliana Guggino, Angelo Ferrante, Francesco Ciccia
Subclinical gut inflammation occurring in patients affected by spondyloarthritis (SpA) is correlated with the severity of spine inflammation. Several evidences indicate that dysbiosis occurs in SpA, and that may modulate intestinal permeability and intestinal immune responses. The presence of intestinal dysbiosis is accompanied in SpA patients with the presence of zonulin-dependent alterations of gut-epithelial and gut-vascular barriers. The leakage of epithelial and endothelial surface layers is followed by the translocation of bacterial products, such as lipopolysaccharide and intestinal fatty acid binding protein, in the systemic circulation...
2018: Frontiers in Medicine
https://www.readbyqxmd.com/read/29780528/synthetic-glycan-based-tlr4-agonists-targeting-caspase-4-11-for-the-development-of-adjuvants-and-immunotherapeutics
#20
Florian Adanitsch, Jianjin Shi, Feng Shao, Rudi Beyaert, Holger Heine, Alla Zamyatina
Gram-negative bacterial lipopolysaccharide (LPS)-induced Toll-like receptor 4 (TLR4) mediated pro-inflammatory signaling plays a key role in immunoprotection against infectious challenges and boosts adaptive immunity, whereas the activation of the cytosolic LPS receptor caspase-4/11 leads to cell death by pyroptosis and is deeply implicated in the development of sepsis. Despite tremendous advances in the understanding of the LPS-TLR4 interaction, predictably regulated TLR4 activation has not yet been achieved...
April 28, 2018: Chemical Science
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