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https://www.readbyqxmd.com/read/28433042/-alarmins-and-surgical-injury
#1
J Máca, M Peteja
Surgical intervention is an inseparable part of the management of serious surgical disease. However, surgery also presents a potential risk related to the so-called surgical injury causing immune response. When dysregulated the immune activation is able to cause local complications (i.e. wound dehiscence, impaired healing). Systemic decompartmentization of the immunologic disturbance can negatively influence long-term outcomes (i.e. hospital length of stay, mortality). Due to aseptic conditions in the operating room, such an immune activation is almost always of sterile nature...
2017: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/28410870/interleukin-33-in-children-with-asthma-a-systematic-review-and-meta-analysis
#2
Y Wang, L Wang, S Hua
BACKGROUND: Previous studies have shown that serum interleukin 33 serving as an "alarmin" is increased in children with asthma. The objective of this study was to assess the validity of serum IL33 test for early diagnosis of childhood asthma. METHODS: A literature search was performed in June 2016 using PubMed, Embase, the Cochrane Library and other Chinese Medical Databases to identify studies. The search terms used were "cytokine", "interleukin-33", "asthma" and "children"...
April 11, 2017: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/28387719/emerging-roles-of-il-33-st2-axis-in-renal-diseases
#3
REVIEW
Wei-Yu Chen, Lung-Chih Li, Jenq-Lin Yang
Renal diseases, including acute kidney injury (AKI) and chronic kidney disease (CKD), have a great impact on health care systems worldwide. Similar to cardiovascular diseases, renal diseases are inflammatory diseases involving a variety of cytokines. Primary causes of renal injury include ischemia, uremic toxins, bacteremia, or nephrotoxicity. Inflammation represents an important component following kidney injury. Interleukin (IL)-33 is a member of the IL-1 cytokine family, which is widely expressed in epithelial barrier tissues and endothelial cells, and mediates both tissue inflammation and repair responses...
April 7, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28373282/metformin-directly-binds-the-alarmin-hmgb1-and-inhibits-its-proinflammatory-activity
#4
Takahiro Horiuchi, Natsumi Sakata, Yoshihiro Narumi, Tomohiro Kimura, Takashi Hayashi, Keisuke Nagano, Keyue Liu, Masahiro Nishibori, Sohei Tsukita, Tetsuya Yamada, Hideki Katagiri, Ryutaro Shirakawa, Hisanori Horiuchi
Metformin is the first-line drug in the treatment of type 2 diabetes. In addition to its hypoglycemic effect, metformin has an anti-inflammatory function, but the precise mechanism promoting this activity remains unclear. High mobility group box 1 (HMGB1) is an alarmin that is released from necrotic cells and induces inflammatory responses by its cytokine-like activity and is therefore a target of anti-inflammatory therapies. Here we identified HMGB1 as a novel metformin binding protein by affinity purification using a biotinylated metformin analogue...
April 3, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28292981/vaginal-heparan-sulfate-linked-to-neutrophil-dysfunction-in-the-acute-inflammatory-response-associated-with-experimental-vulvovaginal-candidiasis
#5
Junko Yano, Mairi C Noverr, Paul L Fidel
Despite acute inflammation by polymorphonuclear neutrophils (PMNs) during vulvovaginal candidiasis (VVC), clearance of Candida fails to occur. The purpose of this study was to uncover the mechanism of vaginal PMN dysfunction. Designs included assessing PMN migration, proinflammatory mediators, and tissue damage (by analysis of the activity of lactate dehydrogenase [LDH]) in mice susceptible (C3H/HeN-C57BL/6) or resistant (CD-1) to chronic VVC (CVVC-S or CVVC-R) and testing morphology-specific Candida albicans strains under conditions of preinduced PMN migration (CVVC-S mice) or PMN depletion (CVVC-R mice)...
March 14, 2017: MBio
https://www.readbyqxmd.com/read/28267688/reduction-of-myocardial-ischemia-reperfusion-injury-by-inhibiting-interleukin-1-alpha
#6
Adolfo G Mauro, Eleonora Mezzaroma, Juan Torrado, Priyanka Kundur, Priyashma Joshi, Kelsey Stroud, Federico Quaini, Costanza A Lagrasta, Antonio Abbate, Stefano Toldo
BACKGROUND: Interleukin-1α (IL-1α) released by dying cells is an alarmin that activates the innate immunity. We hypothesized that after myocardial ischemia-reperfusion (I/R) injury, IL-1α amplifies the myocardial damage by activating the inflammasome and caspase-1. METHODS: Adult male CD1 mice were used. The left anterior descending coronary artery was ligated for 30 minutes, after 24 hours of reperfusion. An IL-1α blocking antibody (15 μg/kg intraperitoneally) or matching vehicle was given after reperfusion...
March 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28259547/clock-dependent-temporal-regulation-of-il-33-st2-mediated-mast-cell%C3%A2-response
#7
Takahiro Kawauchi, Kayoko Ishimaru, Yuki Nakamura, Nobuhiro Nakano, Mutsuko Hara, Hideoki Ogawa, Ko Okumura, Shigenobu Shibata, Atsuhito Nakao
BACKGROUND: Interleukin-33 (IL-33) is an alarmin cytokine that binds to the interleukin 1 receptor-like 1 protein ST2. Clock is a key circadian gene that is essential for endogenous clockworks in mammals. This study investigated whether Clock temporally regulated IL-33-mediated responses in mast cells. METHODS: The kinetics of IL-33-mediated IL-6, IL-13, and TNF-α productions were compared between bone marrow-derived mast cells (BMMCs) from wild-type and Clock-mutated mice (Clock(Δ19/Δ19) mice)...
March 2, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28245781/endogenous-and-exogenous-natural-adjuvants-for-vaccine-development
#8
Azam Bolhassani, Somayeh Talebi, Ali Anvar
Various adjuvants are usually co-injected with an antigen for stimulation of effective immune responses. Their mechanisms of action in vaccine development include: a) enhancement of the total antibody titers; b) reduction of the antigen dose; c) induction of potent cell-mediated immunity; d) increase in the speed and duration of the protective response; e) stimulation of mucosal immunity; and f) cross-protection. Up to now, different exogenous adjuvants have been identified to boost immune responses including inorganic compounds (e...
February 28, 2017: Mini Reviews in Medicinal Chemistry
https://www.readbyqxmd.com/read/28228256/first-breath-induced-type-2-pathways-shape-the-lung-immune-environment
#9
Simona Saluzzo, Anna-Dorothea Gorki, Batika M J Rana, Rui Martins, Seth Scanlon, Philipp Starkl, Karin Lakovits, Anastasiya Hladik, Ana Korosec, Omar Sharif, Joanna M Warszawska, Helen Jolin, Ildiko Mesteri, Andrew N J McKenzie, Sylvia Knapp
From birth onward, the lungs are exposed to the external environment and therefore harbor a complex immunological milieu to protect this organ from damage and infection. We investigated the homeostatic role of the epithelium-derived alarmin interleukin-33 (IL-33) in newborn mice and discovered the immediate upregulation of IL-33 from the first day of life, closely followed by a wave of IL-13-producing type 2 innate lymphoid cells (ILC2s), which coincided with the appearance of alveolar macrophages (AMs) and their early polarization to an IL-13-dependent anti-inflammatory M2 phenotype...
February 21, 2017: Cell Reports
https://www.readbyqxmd.com/read/28215228/hmgb1-protein-a-therapeutic-target-inside-and-outside-the-cell
#10
I Ugrinova, E Pasheva
High-mobility group box 1 protein (HMGB1) is a nonhistone chromosomal protein discovered more than 30 years ago. It is an abundant nuclear protein that has a dual function-in the nucleus, it binds DNA and participates in practically all DNA-dependent processes serving as an architectural factor. Outside the cell, HMGB1 plays a different role-it acts as an alarmine that activates a large number of HMGB1-"competent" cells and mediates a broad range of physiological and pathological responses. This universality makes it an attractive target for innovative therapeutic strategies in the treatment of various diseases...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28198366/th17-cells-express-st2-and-are-controlled-by-the-alarmin-il-33-in-the-small-intestine
#11
A Pascual-Reguant, J Bayat Sarmadi, C Baumann, R Noster, D Cirera-Salinas, C Curato, P Pelczar, S Huber, C E Zielinski, M Löhning, A E Hauser, E Esplugues
TH17 cells are major drivers of inflammation and involved in several autoimmune diseases. Tissue inflammation is a beneficial host response to infection, but it can also contribute to autoimmunity. The crosstalk between a tissue and the immune system during an inflammatory response is key for preserving tissue integrity and restoring physiological processes. However, how the inflamed tissue regulates the magnitude of an immune response by controlling pro-inflammatory T cells is not well characterized so far...
February 15, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28192534/sm-p80-based-schistosomiasis-vaccine-mediated-epistatic-interactions-identified-potential-immune-signatures-for-vaccine-efficacy-in-mice-and-baboons
#12
Juan U Rojo, Michael W Melkus, Kameswara Rao Kottapalli, Oscar E Okiya, Justin Sudduth, Weidong Zhang, Adebayo J Molehin, Darrick Carter, Afzal A Siddiqui
Schistosomiasis is a neglected parasitic disease of major public health concern as it affects over 250 million people in developing countries. Currently there is no licensed vaccine available against schistosomiasis. The Schistosoma mansoni calpain protein, Sm-p80, is a leading vaccine candidate now ready to move to clinical trials. In order to better assess Sm-p80 vaccine immunogenicity; here we used a systems biology approach employing RNA-sequencing to identify gene signatures and epistatic interactions following Sm-p80 vaccination in mouse and baboon models that may predict vaccine efficacy...
2017: PloS One
https://www.readbyqxmd.com/read/28178282/trypanosoma-cruzi-high-mobility-group-b-tchmgb-can-act-as-an-inflammatory-mediator-on-mammalian-cells
#13
Pamela Cribb, Virginia Perdomo, Victoria L Alonso, Romina Manarin, Jorge Barrios-Payán, Brenda Marquina-Castillo, Luis Tavernelli, Rogelio Hernández-Pando
BACKGROUND: High Mobility Group B (HMGB) proteins are nuclear architectural factors involved in chromatin remodeling and important nuclear events. HMGBs also play key roles outside the cell acting as alarmins or Damage-associated Molecular Patterns (DAMPs). In response to a danger signal these proteins act as immune mediators in the extracellular milieu. Moreover, these molecules play a central role in the pathogenesis of many autoimmune and both infectious and sterile inflammatory chronic diseases...
February 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28176789/the-intraspecies-diversity-of-c-albicans-triggers-qualitatively-and-temporally-distinct-host-responses-that-determine-the-balance-between-commensalism-and-pathogenicity
#14
F A Schönherr, F Sparber, F R Kirchner, E Guiducci, K Trautwein-Weidner, A Gladiator, N Sertour, U Hetzel, G T T Le, N Pavelka, C d'Enfert, M-E Bougnoux, C F Corti, S LeibundGut-Landmann
The host immune status is critical for preventing opportunistic infections with Candida albicans. Whether the natural fungal diversity that exists between C. albicans isolates also influences disease development remains unclear. Here, we used an experimental model of oral infection to probe the host response to diverse C. albicans isolates in vivo and found dramatic differences in their ability to persist in the oral mucosa, which inversely correlated with the degree and kinetics of immune activation in the host...
February 8, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28168040/role-of-the-il-33-st2-axis-in-sepsis
#15
REVIEW
Hui Xu, Heth R Turnquist, Rosemary Hoffman, Timothy R Billiar
Sepsis remains a major clinical problem with high morbidity and mortality. As new inflammatory mediators are characterized, it is important to understand their roles in sepsis. Interleukin 33 (IL-33) is a recently described member of the IL-1 family that is widely expressed in cells of barrier tissues. Upon tissue damage, IL-33 is released as an alarmin and activates various types of cells of both the innate and adaptive immune system through binding to the ST2/IL-1 receptor accessory protein complex. IL-33 has apparent pleiotropic functions in many disease models, with its actions strongly shaped by the local microenvironment...
2017: Military Medical Research
https://www.readbyqxmd.com/read/28167650/alarmins-feel-the-stress
#16
REVIEW
Peleg Rider, Elena Voronov, Charles A Dinarello, Ron N Apte, Idan Cohen
Over the last decade, danger-associated molecular pattern molecules, or alarmins, have been recognized as signaling mediators of sterile inflammatory responses after trauma and injury. In contrast with the accepted passive release models suggested by the "danger hypothesis," it was recently shown that alarmins can also directly sense and report damage by signaling to the environment when released from live cells undergoing physiological stress, even without loss of subcellular compartmentalization. In this article, we review the involvement of alarmins such as IL-1α, IL-33, IL-16, and high-mobility group box 1 in cellular and physiological stress, and suggest a novel activity of these molecules as central initiators of sterile inflammation in response to nonlethal stress, a function we denote "stressorins...
February 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28147281/the-atypical-ubiquitin-e2-conjugase-ube2l3-is-an-indirect-caspase-1-target-and-controls-il-1%C3%AE-secretion-by-inflammasomes
#17
Matthew J G Eldridge, Julia Sanchez-Garrido, Gil Ferreira Hoben, Philippa J Goddard, Avinash R Shenoy
Caspase-1 activation by inflammasome signaling scaffolds initiates inflammation and antimicrobial responses. Caspase-1 proteolytically converts newly induced pro-interleukin 1 beta (IL-1β) into its mature form and directs its secretion, triggering pyroptosis and release of non-substrate alarmins such as interleukin 1 alpha (IL-1α) and HMGB1. While some caspase-1 substrates involved in these events are known, the identities and roles of non-proteolytic targets remain unknown. Here, we use unbiased proteomics to show that the UBE2L3 ubiquitin conjugase is an indirect target of caspase-1...
January 31, 2017: Cell Reports
https://www.readbyqxmd.com/read/28130045/hematopoietic-processes-in-eosinophilic-asthma
#18
Brittany M Salter, Roma Sehmi
Airway eosinophilia is a hallmark of allergic asthma and understanding mechanisms that promote increases in lung eosinophil numbers is important for effective pharmaco-therapeutic development. It has become evident that expansion of hemopoietic compartments in the bone marrow promotes differentiation and trafficking of mature eosinophils to the airways. Hematopoietic progenitor cells egress the bone marrow and home to the lungs, where in-situ differentiative processes within the tissue provide an ongoing source of pro-inflammatory cells...
January 24, 2017: Chest
https://www.readbyqxmd.com/read/28128358/galectin-3-released-in-response-to-traumatic-brain-injury-acts-as-an-alarmin-orchestrating-brain-immune-response-and-promoting-neurodegeneration
#19
Ping Kei Yip, Alejandro Carrillo-Jimenez, Paul King, Anna Vilalta, Koji Nomura, Chi Cheng Chau, Alexander Michael Scott Egerton, Zhuo-Hao Liu, Ashray Jayaram Shetty, Jordi L Tremoleda, Meirion Davies, Tomas Deierborg, John V Priestley, Guy Charles Brown, Adina Teodora Michael-Titus, Jose Luis Venero, Miguel Angel Burguillos
Traumatic brain injury (TBI) is currently a major cause of morbidity and poor quality of life in Western society, with an estimate of 2.5 million people affected per year in Europe, indicating the need for advances in TBI treatment. Within the first 24 h after TBI, several inflammatory response factors become upregulated, including the lectin galectin-3. In this study, using a controlled cortical impact (CCI) model of head injury, we show a large increase in the expression of galectin-3 in microglia and also an increase in the released form of galectin-3 in the cerebrospinal fluid (CSF) 24 h after head injury...
January 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28127491/sterile-neuroinflammation-and-strategies-for-therapeutic-intervention
#20
REVIEW
Manoj Banjara, Chaitali Ghosh
Sterile neuroinflammation is essential for the proper brain development and tissue repair. However, uncontrolled neuroinflammation plays a major role in the pathogenesis of various disease processes. The endogenous intracellular molecules so called damage-associated molecular patterns or alarmins or damage signals that are released by activated or necrotic cells are thought to play a crucial role in initiating an immune response. Sterile inflammatory response that occurs in Alzheimer's disease (AD), Parkinson's disease (PD), stroke, hemorrhage, epilepsy, or traumatic brain injury (TBI) creates a vicious cycle of unrestrained inflammation, driving progressive neurodegeneration...
2017: International Journal of Inflammation
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