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https://www.readbyqxmd.com/read/27921405/thrombolytic-therapy-up-regulates-inflammatory-mediators-compared-to-percutaneous-coronary-intervention-pci
#1
Alireza Garjani, Bahram Sohrabi, Ali Akbar Movassaghpour, Sina Andalib, Mehriar Shokri, Bahar Taherkhanchi, Bahador Bagheri
The important role of reperfusion therapies in the treatment of acute myocardial infarction is well documented. However, reperfusion therapies can initiate inflammatory response and may damage the myocardium. The purpose of current study was to compare the effects of percutaneous coronary intervention and thrombolytic therapy on inflammatory markers in the setting of ST elevation myocardial infarction (STEMI). Eighty three patients with STEMI were enrolled in this study. 40 patients underwent percutaneous coronary intervention (PCI), and 43 patients received streptokinase (1...
August 2016: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/27920557/effect-of-smoking-on-the-genetic-makeup-of-toll-like-receptors-2-and-6
#2
Muhammad Kohailan, Mohammad Alanazi, Mahmoud Rouabhia, Abdullah Alamri, Narasimha Reddy Parine, Abdullah Alhadheq, Santhosh Basavarajappa, Abdul Aziz Abdullah Al-Kheraif, Abdelhabib Semlali
BACKGROUND: Cigarette smoking is a major risk factor for lung cancer, asthma, and oral cancer, and is central to the altered innate immune responsiveness to infection. Many hypotheses have provided evidence that cigarette smoking induces more genetic changes in genes involved in the development of many cigarette-related diseases. This alteration may be from single-nucleotide polymorphisms (SNPs) in innate immunity genes, especially the toll-like receptors (TLRs). OBJECTIVE: In this study, the genotype frequencies of TLR2 and TLR6 in smoking and nonsmoking population were examined...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27920152/toll-like-receptor-9-stimulation-induces-aberrant-expression-of-a-proliferation-inducing-ligand-by-tonsillar-germinal-center-b-cells-in-iga-nephropathy
#3
Masahiro Muto, Benoit Manfroi, Hitoshi Suzuki, Kensuke Joh, Masaaki Nagai, Sachiko Wakai, Christian Righini, Masayuki Maiguma, Shozo Izui, Yasuhiko Tomino, Bertrand Huard, Yusuke Suzuki
The TNF family member a proliferation-inducing ligand (APRIL; also known as TNFSF13), produced by myeloid cells, participates in the generation and survival of antibody-producing plasma cells. We studied the potential role of APRIL in the pathogenesis of IgA nephropathy (IgAN). We found that a significant proportion of germinal centers (GCs) in tonsils of patients with IgAN contained cells aberrantly producing APRIL, contributing to an overall upregulation of tonsillar APRIL expression compared with that in tonsils of control patients with tonsillitis...
December 5, 2016: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/27920126/postnatal-activation-of-tlr4-in-astrocytes-promotes-excitatory-synaptogenesis-in-hippocampal-neurons
#4
Yi Shen, Huaping Qin, Juan Chen, Lingyan Mou, Yang He, Yixiu Yan, Hang Zhou, Ya Lv, Zhong Chen, Junlu Wang, Yu-Dong Zhou
Astrocytes are critical in synapse development, and their dysfunction in crucial developmental stages leads to serious neurodevelopmental diseases, including seizures and epilepsy. Immune challenges not only affect brain development, but also promote seizure generation and epileptogenesis, implying immune activation is one of the key factors linking seizures and epilepsy to abnormal brain development. In this study, we report that activating astrocytes by systemic lipopolysaccharide (LPS) challenges in the second postnatal week promotes excitatory synapse development, leading to enhanced seizure susceptibility in mice...
December 5, 2016: Journal of Cell Biology
https://www.readbyqxmd.com/read/27919753/advax-a-delta-inulin-microparticle-potentiates-in-built-adjuvant-property-of-co-administered-vaccines
#5
Masayuki Hayashi, Taiki Aoshi, Yasunari Haseda, Kouji Kobiyama, Edward Wijaya, Noriyuki Nakatsu, Yoshinobu Igarashi, Daron M Standley, Hiroshi Yamada, Yoshikazu Honda-Okubo, Hiromitsu Hara, Takashi Saito, Toshiyuki Takai, Cevayir Coban, Nikolai Petrovsky, Ken J Ishii
Advax, a delta inulin-derived microparticle, has been developed as an adjuvant for several vaccines. However, its immunological characteristics and potential mechanism of action are yet to be elucidated. Here, we show that Advax behaves as a type-2 adjuvant when combined with influenza split vaccine, a T helper (Th)2-type antigen, but behaves as a type-1 adjuvant when combined with influenza inactivated whole virion (WV), a Th1-type antigen. In addition, an adjuvant effect was not observed when Advax-adjuvanted WV vaccine was used to immunize toll-like receptor (TLR) 7 knockout mice which are unable to respond to RNA contained in WV antigen...
December 1, 2016: EBioMedicine
https://www.readbyqxmd.com/read/27919436/complement-in-basic-processes-of-the-cell
#6
Anaïs Jiménez-Reinoso, Ana V Marin, José R Regueiro
The complement system is reemerging in the last few years not only as key element of innate immunity against pathogens, but also as a main regulator of local adaptive responses, affecting dendritic cells as well as T and B lymphocytes. We review data showing that leucocytes are capable of significant autocrine synthesis of complement proteins, and express a large range of complement receptors, which in turn regulate their differentiation and effector functions while cross talking with other innate receptors such as Toll-like receptors...
December 2, 2016: Molecular Immunology
https://www.readbyqxmd.com/read/27918243/the-neuroimmune-transcriptome-and-alcohol-dependence-potential-for-targeted-therapies
#7
Anna Warden, Emma Erickson, Gizelle Robinson, R Adron Harris, R Dayne Mayfield
Transcriptome profiling enables discovery of gene networks that are altered in alcoholic brains. This technique has revealed involvement of the brain's neuroimmune system in regulating alcohol abuse and dependence, and has provided potential therapeutic targets. In this review, we discuss Toll-like-receptor pathways, hypothesized to be key players in many stages of the alcohol addiction cycle. The growing appreciation of the neuroimmune system's involvement in alcoholism has also led to consideration of crucial roles for glial cells, including astrocytes and microglia, in the brain's response to alcohol abuse...
December 5, 2016: Pharmacogenomics
https://www.readbyqxmd.com/read/27918221/neutrophilic-inflammation-in-asthma-mechanisms-and-therapeutic-considerations
#8
Hun Soo Chang, Tae-Hyeong Lee, Ji Ae Jun, Ae Rin Baek, Jong-Sook Park, So My Koo, Yang-Ki Kim, Ho Sung Lee, Choon-Sik Park
Neutrophilic airway inflammation represents a pathologically distinct form of asthma and frequently appears in symptomatic adulthood asthmatics. However, clinical impacts and mechanisms of the neutrophilic inflammation have not been thoroughly evaluated up to date. Areas covered: Currently, distinct clinical manifestations, triggers, and molecular mechanisms of the neutrophilic inflammation (namely Toll-like receptor, Th1, Th17, inflammasome) are under investigation in asthma. Furthermore, possible role of the neutrophilic inflammation is being investigated in respect to the airway remodeling...
December 5, 2016: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/27917624/relationships-between-high-mobility-group-protein-b1-and-triggering-receptor-expressed-on-myeloid-cells-concentrations-in-gingival-crevicular-fluid-and-chronic-periodontitis
#9
Mojgan Paknejad, Mandana Sattari, Zohreh Roozbahani, Morteza Ershadi, Ali Mehrfard
One of the inflammatory mediators which is secreted by inflammatory cells is high-mobility group protein B1 (HMGB1). Interaction of HMGB1 and toll-like receptors (TLRs) leads to increased production of inflammatory cytokines. On the other hand, it was shown that triggering receptor expressed on myeloid cells (TREM-1) also can be activated by TLRs, and its soluble form (sTREM-1) can be formed by cleaving of membrane-bound form of TREM-1 proteinases. Since there is not enough knowledge about the precise role of HMGB1 and sTREM-1 in periodontal diseases, the aim of this study was to evaluate the concentration of HMGB1 and sTREM-1 in gingival crevicular fluid (GCF) samples of patients with chronic periodontitis...
October 2016: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/27917620/normothermic-ex-vivo-lung-perfusion-in-brain-dead-donors-reduces-inflammatory-cytokines-and-toll-like-receptor-expression
#10
Shadi Shafaghi, Esmaeil Mortaz, Azizollah Abbasi Dezfuli, Hoda Godarzi, Kambiz Sheikhy, Zahra Ansari Aval, Behrooz Farzanegan, Habib Emami, Fatemeh Sadat Hosseini-Baharanchi, Katayoun Najafizadeh
Inflammatory responses and innate immunologic reactions play an important role in the respiratory system. Ex vivo lung perfusion (EVLP) is considered a novel method in the evaluation and reconditioning of donor lungs prior to transplantation. However, EVLP's effect on inflammatory and metabolic markers of human lung tissue is unknown.  This study investigated how the performance of EVLP on brain-dead (BD) donor lungs affects the production and release of inflammatory cytokines (IL-6, IL-8, and TNF-a), inflammatory cells and toll-like receptors (TLR) -2, 4...
October 2016: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/27917375/recombinant-lipoprotein-rv1016c-derived-from-mycobacterium-tuberculosis-is-a-tlr-2-ligand-that-induces-macrophages-apoptosis-and-inhibits-mhc-ii-antigen-processing
#11
Haibo Su, Shenglin Zhu, Lin Zhu, Wei Huang, Honghai Wang, Zhi Zhang, Ying Xu
TLR2-dependent cellular signaling in Mycobacterium tuberculosis-infected macrophages causes apoptosis and inhibits class II major histocompatibility complex (MHC-II) molecules antigen processing, leading to evasion of surveillance. Mycobacterium tuberculosis (MTB) lipoproteins are an important class of Toll-like receptor (TLR) ligand, and identified as specific components that mediate these effects. In this study, we identified and characterized MTB lipoprotein Rv1016c (lpqT) as a cell wall associated-protein that was exposed on the cell surface and enhanced the survival of recombinants M...
2016: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/27917363/future-therapy-for-hepatitis-b-virus-role-of-immunomodulators
#12
REVIEW
Edward A Pham, Ryan B Perumpail, Benjamin J Fram, Jeffrey S Glenn, Aijaz Ahmed, Robert G Gish
Although currently available therapies for chronic hepatitis B virus infection can suppress viremia and provide long-term benefits for patients, they do not lead to a functional cure for most patients. Advances in our understanding of the virus-host interaction and the recent remarkable success of immunotherapy in cancer offer new and promising strategies for developing immune modulators that may become important components of a total therapeutic approach to hepatitis B, some of which are now in clinical development...
2016: Current Hepatology Reports
https://www.readbyqxmd.com/read/27917262/toll-like-receptors-in-pathophysiology-of-liver-diseases
#13
REVIEW
Safak Kiziltas
Toll-like receptors (TLRs) are pattern recognition receptors that participate in host defense by recognizing pathogen-associated molecular patterns alongside inflammatory processes by recognizing damage associated molecular patterns. Given constant exposure to pathogens from gut, strict control of TLR-associated signaling pathways is essential in the liver, which otherwise may lead to inappropriate production of pro-inflammatory cytokines and interferons and may generate a predisposition to several autoimmune and chronic inflammatory diseases...
November 18, 2016: World Journal of Hepatology
https://www.readbyqxmd.com/read/27917158/a-zebrafish-model-for-chlamydia-infection-with-the-obligate-intracellular-pathogen-waddlia-chondrophila
#14
Alexander G J Fehr, Maja Ruetten, Helena M B Seth-Smith, Lisbeth Nufer, Andrea Voegtlin, Angelika Lehner, Gilbert Greub, Philip S Crosier, Stephan C F Neuhauss, Lloyd Vaughan
Obligate intracellular chlamydial bacteria of the Planctomycetes-Verrucomicrobia-Chlamydiae (PVC) superphylum are important pathogens of terrestrial and marine vertebrates, yet many features of their pathogenesis and host specificity are still unknown. This is particularly true for families such as the Waddliacea which, in addition to epithelia, cellular targets for nearly all Chlamydia, can infect and replicate in macrophages, an important arm of the innate immune system or in their free-living amoebal counterparts...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27916941/autoimmune-regulator-expression-in-dc2-4-cells-regulates-the-nf-%C3%AE%C2%BAb-signaling-and-cytokine-expression-of-the-toll-like-receptor-3-pathway
#15
Jitong Sun, Kunwei Niu, Haiying Fu, Haijun Li, Yi Li, Wei Yang
Autoimmune regulator (Aire) mutations result in autoimmune polyendocrinopathy candidiasis ectodermal dystrophy (APECED), which manifests as multi-organ autoimmunity and chronic mucocutaneous candidiasis (CMC). Indendritic cells (DCs), pattern recognition receptors (PRR), such as Toll-like receptors (TLRs), are closely involved in the recognition of various pathogens, activating the intercellular signaling pathway, followed by the activation of transcription factors and the expression of downstream genes, which take part in mediating the immune response and maintaining immune tolerance...
December 1, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27916733/sirt1-regulates-lipopolysaccharide-induced-cd40-expression-in-renal-medullary-collecting-duct-cells-by-suppressing-the-tlr4-nf-%C3%AE%C2%BAb-signaling-pathway
#16
Qin-Qin Lin, Yuan-Wen Geng, Zhong-Wei Jiang, Zhen-Jun Tian
AIMS: Recent evidence indicates that sirtuin1 (SIRT1), a NAD(+)-dependent deacetylase, exerts a protective effect against inflammatory kidney injury by suppressing pro-inflammatory cytokines production. The co-stimulatory molecule, CD40, is expressed in a variety of inflammatory diseases in the kidney. Here, we aimed to investigate the potential effect of SIRT1 on CD40 expression induced by lipopolysaccharide (LPS) and to disclose the underlying mechanisms in renal inner medullary collecting duct (IMCD) cells...
December 1, 2016: Life Sciences
https://www.readbyqxmd.com/read/27916353/toll-like-receptor-responses-are-suppressed-in-trauma-icu-patients
#17
Travis L Holloway, Susannah E Nicholson, Meenakshi Rani, Andrew P Cap, Martin G Schwacha
BACKGROUND: Inflammation and activation of the innate immune system are often associated with traumatic injury and may involve alterations in toll-like receptor (TLR)-mediated responses. METHODS: A prospective observational study was designed and conducted. Twenty-one severely injured (ISS = 16-41) trauma intensive care unit (ICU) patients and six healthy volunteers that served as controls were enrolled. Anticoagulated whole blood was collected at 2-12 d after ICU admission and incubated in the presence of media alone (baseline), zymosan (TLR2 agonist) or lipopolysaccharide (LPS; TLR4 agonist) for 3 h...
November 2016: Journal of Surgical Research
https://www.readbyqxmd.com/read/27916090/-gallic-acid-inhibits-inflammatory-response-of-raw264-7-macrophages-by-blocking-the-activation-of-tlr4-nf-%C3%AE%C2%BAb-induced-by-lps
#18
Lihua Huang, Lin Hou, Hainan Xue, Chunjie Wang
Objective To observe the influence of gallic acid on Toll-like receptor 4/nuclear factor-κB (TLR4/NF-κB) pathway in the RAW264.7 macrophages stimulated by lipopolysaccharide (LPS). Methods RAW264.7 macrophages were divided into the following groups: control group, LPS group, LPS combined with gallic acid group, LPS combined with pyrrolidine dithiocarbamate (PDTC) group and LPS combined with dexamethasone (DM) group. RAW264.7 cells were cultured for 24 hours after corresponding treatments. The levels of tumor necrosis factor α (TNF-α), interleukin-1 (IL-1) and IL-6 were detected by ELISA...
December 2016: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/27915236/alcohol-and-alzheimer-s-disease-does-alcohol-dependence-contribute-to-beta-amyloid-deposition-neuroinflammation-and-neurodegeneration-in-alzheimer-s-disease
#19
Ashwin Venkataraman, Nicola Kalk, Gavin Sewell, Craig W Ritchie, Anne Lingford-Hughes
AIMS: To investigate the underlying neurobiology between alcohol use, misuse and dependence and cognitive impairment, particularly Alzheimer's disease (AD). METHODS: Review of the literature using searches of Medline, Pubmed, EMBASE, PsycInfo, and meeting abstracts and presentations. RESULTS: The role of alcohol as a risk factor and contributor for cognitive decline associated with AD has received little attention. This is despite the high prevalence of alcohol use, the potential reversibility of a degree of cognitive impairment and the global burden of AD...
December 3, 2016: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/27915041/garlic-active-constituent-s-allyl-cysteine-protects-against-lipopolysaccharide-induced-cognitive-deficits-in-the-rat-possible-involved-mechanisms
#20
Mahboubeh Zarezadeh, Tourandokht Baluchnejadmojarad, Zahra Kiasalari, Siamak Afshin-Majd, Mehrdad Roghani
Neuroinflammation is known as a risk factor for cognitive deficit and dementia and its incidence increased with aging. S-allyl cysteine (SAC) is the active and main component of aged garlic extract with anti-inflammatory, neuroprotective, and nootropic potential. In this study, the protective effect of SAC against lipopolysaccharide (LPS)-induced cognitive deficit in the rat was investigated. For induction of learning and memory impairment and neuroinflammation, LPS was intraperitoneally injected at a dose of 167 μg/kg for 7 days and SAC was administered p...
November 30, 2016: European Journal of Pharmacology
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